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| /* |
| Copyright (c) 2004-2007, The Dojo Foundation |
| All Rights Reserved. |
| |
| Licensed under the Academic Free License version 2.1 or above OR the |
| modified BSD license. For more information on Dojo licensing, see: |
| |
| http://dojotoolkit.org/book/dojo-book-0-9/introduction/licensing |
| */ |
| |
| /* |
| This is a compiled version of Dojo, built for deployment and not for |
| development. To get an editable version, please visit: |
| |
| http://dojotoolkit.org |
| |
| for documentation and information on getting the source. |
| */ |
| |
| if(!dojo._hasResource["dojox.storage.Provider"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. |
| dojo._hasResource["dojox.storage.Provider"] = true; |
| dojo.provide("dojox.storage.Provider"); |
| |
| dojo.declare("dojox.storage.Provider", null, { |
| // summary: A singleton for working with dojox.storage. |
| // description: |
| // dojox.storage exposes the current available storage provider on this |
| // platform. It gives you methods such as dojox.storage.put(), |
| // dojox.storage.get(), etc. |
| // |
| // For more details on dojox.storage, see the primary documentation |
| // page at |
| // http://manual.dojotoolkit.org/storage.html |
| // |
| // Note for storage provider developers who are creating subclasses- |
| // This is the base class for all storage providers Specific kinds of |
| // Storage Providers should subclass this and implement these methods. |
| // You should avoid initialization in storage provider subclass's |
| // constructor; instead, perform initialization in your initialize() |
| // method. |
| constructor: function(){ |
| }, |
| |
| // SUCCESS: String |
| // Flag that indicates a put() call to a |
| // storage provider was succesful. |
| SUCCESS: "success", |
| |
| // FAILED: String |
| // Flag that indicates a put() call to |
| // a storage provider failed. |
| FAILED: "failed", |
| |
| // PENDING: String |
| // Flag that indicates a put() call to a |
| // storage provider is pending user approval. |
| PENDING: "pending", |
| |
| // SIZE_NOT_AVAILABLE: String |
| // Returned by getMaximumSize() if this storage provider can not determine |
| // the maximum amount of data it can support. |
| SIZE_NOT_AVAILABLE: "Size not available", |
| |
| // SIZE_NO_LIMIT: String |
| // Returned by getMaximumSize() if this storage provider has no theoretical |
| // limit on the amount of data it can store. |
| SIZE_NO_LIMIT: "No size limit", |
| |
| // DEFAULT_NAMESPACE: String |
| // The namespace for all storage operations. This is useful if several |
| // applications want access to the storage system from the same domain but |
| // want different storage silos. |
| DEFAULT_NAMESPACE: "default", |
| |
| // onHideSettingsUI: Function |
| // If a function is assigned to this property, then when the settings |
| // provider's UI is closed this function is called. Useful, for example, |
| // if the user has just cleared out all storage for this provider using |
| // the settings UI, and you want to update your UI. |
| onHideSettingsUI: null, |
| |
| initialize: function(){ |
| // summary: |
| // Allows this storage provider to initialize itself. This is |
| // called after the page has finished loading, so you can not do |
| // document.writes(). Storage Provider subclasses should initialize |
| // themselves inside of here rather than in their function |
| // constructor. |
| console.warn("dojox.storage.initialize not implemented"); |
| }, |
| |
| isAvailable: function(){ /*Boolean*/ |
| // summary: |
| // Returns whether this storage provider is available on this |
| // platform. |
| console.warn("dojox.storage.isAvailable not implemented"); |
| }, |
| |
| put: function( /*string*/ key, |
| /*object*/ value, |
| /*function*/ resultsHandler, |
| /*string?*/ namespace){ |
| // summary: |
| // Puts a key and value into this storage system. |
| // description: |
| // Example- |
| // var resultsHandler = function(status, key, message){ |
| // alert("status="+status+", key="+key+", message="+message); |
| // }; |
| // dojox.storage.put("test", "hello world", resultsHandler); |
| // |
| // Important note: if you are using Dojo Storage in conjunction with |
| // Dojo Offline, then you don't need to provide |
| // a resultsHandler; this is because for Dojo Offline we |
| // use Google Gears to persist data, which has unlimited data |
| // once the user has given permission. If you are using Dojo |
| // Storage apart from Dojo Offline, then under the covers hidden |
| // Flash might be used, which is both asychronous and which might |
| // get denied; in this case you must provide a resultsHandler. |
| // key: |
| // A string key to use when retrieving this value in the future. |
| // value: |
| // A value to store; this can be any JavaScript type. |
| // resultsHandler: |
| // A callback function that will receive three arguments. The |
| // first argument is one of three values: dojox.storage.SUCCESS, |
| // dojox.storage.FAILED, or dojox.storage.PENDING; these values |
| // determine how the put request went. In some storage systems |
| // users can deny a storage request, resulting in a |
| // dojox.storage.FAILED, while in other storage systems a storage |
| // request must wait for user approval, resulting in a |
| // dojox.storage.PENDING status until the request is either |
| // approved or denied, resulting in another call back with |
| // dojox.storage.SUCCESS. |
| // The second argument in the call back is the key name that was being stored. |
| // The third argument in the call back is an optional message that |
| // details possible error messages that might have occurred during |
| // the storage process. |
| // namespace: |
| // Optional string namespace that this value will be placed into; |
| // if left off, the value will be placed into dojox.storage.DEFAULT_NAMESPACE |
| |
| console.warn("dojox.storage.put not implemented"); |
| }, |
| |
| get: function(/*string*/ key, /*string?*/ namespace){ /*Object*/ |
| // summary: |
| // Gets the value with the given key. Returns null if this key is |
| // not in the storage system. |
| // key: |
| // A string key to get the value of. |
| // namespace: |
| // Optional string namespace that this value will be retrieved from; |
| // if left off, the value will be retrieved from dojox.storage.DEFAULT_NAMESPACE |
| // return: Returns any JavaScript object type; null if the key is not present |
| console.warn("dojox.storage.get not implemented"); |
| }, |
| |
| hasKey: function(/*string*/ key, /*string?*/ namespace){ /*Boolean*/ |
| // summary: Determines whether the storage has the given key. |
| return (this.get(key) != null); |
| }, |
| |
| getKeys: function(/*string?*/ namespace){ /*Array*/ |
| // summary: Enumerates all of the available keys in this storage system. |
| // return: Array of available keys |
| console.warn("dojox.storage.getKeys not implemented"); |
| }, |
| |
| clear: function(/*string?*/ namespace){ |
| // summary: |
| // Completely clears this storage system of all of it's values and |
| // keys. If 'namespace' is provided just clears the keys in that |
| // namespace. |
| console.warn("dojox.storage.clear not implemented"); |
| }, |
| |
| remove: function(/*string*/ key, /*string?*/ namespace){ |
| // summary: Removes the given key from this storage system. |
| console.warn("dojox.storage.remove not implemented"); |
| }, |
| |
| getNamespaces: function(){ /*string[]*/ |
| console.warn("dojox.storage.getNamespaces not implemented"); |
| }, |
| |
| isPermanent: function(){ /*Boolean*/ |
| // summary: |
| // Returns whether this storage provider's values are persisted |
| // when this platform is shutdown. |
| console.warn("dojox.storage.isPermanent not implemented"); |
| }, |
| |
| getMaximumSize: function(){ /* mixed */ |
| // summary: The maximum storage allowed by this provider |
| // returns: |
| // Returns the maximum storage size |
| // supported by this provider, in |
| // thousands of bytes (i.e., if it |
| // returns 60 then this means that 60K |
| // of storage is supported). |
| // |
| // If this provider can not determine |
| // it's maximum size, then |
| // dojox.storage.SIZE_NOT_AVAILABLE is |
| // returned; if there is no theoretical |
| // limit on the amount of storage |
| // this provider can return, then |
| // dojox.storage.SIZE_NO_LIMIT is |
| // returned |
| console.warn("dojox.storage.getMaximumSize not implemented"); |
| }, |
| |
| putMultiple: function( /*array*/ keys, |
| /*array*/ values, |
| /*function*/ resultsHandler, |
| /*string?*/ namespace){ |
| // summary: |
| // Puts multiple keys and values into this storage system. |
| // description: |
| // Example- |
| // var resultsHandler = function(status, key, message){ |
| // alert("status="+status+", key="+key+", message="+message); |
| // }; |
| // dojox.storage.put(["test"], ["hello world"], resultsHandler); |
| // |
| // Important note: if you are using Dojo Storage in conjunction with |
| // Dojo Offline, then you don't need to provide |
| // a resultsHandler; this is because for Dojo Offline we |
| // use Google Gears to persist data, which has unlimited data |
| // once the user has given permission. If you are using Dojo |
| // Storage apart from Dojo Offline, then under the covers hidden |
| // Flash might be used, which is both asychronous and which might |
| // get denied; in this case you must provide a resultsHandler. |
| // keys: |
| // An array of string keys to use when retrieving this value in the future, |
| // one per value to be stored |
| // values: |
| // An array of values to store; this can be any JavaScript type, though the |
| // performance of plain strings is considerably better |
| // resultsHandler: |
| // A callback function that will receive three arguments. The |
| // first argument is one of three values: dojox.storage.SUCCESS, |
| // dojox.storage.FAILED, or dojox.storage.PENDING; these values |
| // determine how the put request went. In some storage systems |
| // users can deny a storage request, resulting in a |
| // dojox.storage.FAILED, while in other storage systems a storage |
| // request must wait for user approval, resulting in a |
| // dojox.storage.PENDING status until the request is either |
| // approved or denied, resulting in another call back with |
| // dojox.storage.SUCCESS. |
| // The second argument in the call back is the key name that was being stored. |
| // The third argument in the call back is an optional message that |
| // details possible error messages that might have occurred during |
| // the storage process. |
| // namespace: |
| // Optional string namespace that this value will be placed into; |
| // if left off, the value will be placed into dojox.storage.DEFAULT_NAMESPACE |
| |
| console.warn("dojox.storage.putMultiple not implemented"); |
| // JAC: We could implement a 'default' puMultiple here by just doing each put individually |
| }, |
| |
| getMultiple: function(/*array*/ keys, /*string?*/ namespace){ /*Object*/ |
| // summary: |
| // Gets the valuse corresponding to each of the given keys. |
| // Returns a null array element for each given key that is |
| // not in the storage system. |
| // keys: |
| // An array of string keys to get the value of. |
| // namespace: |
| // Optional string namespace that this value will be retrieved from; |
| // if left off, the value will be retrieved from dojox.storage.DEFAULT_NAMESPACE |
| // return: Returns any JavaScript object type; null if the key is not present |
| |
| console.warn("dojox.storage.getMultiple not implemented"); |
| // JAC: We could implement a 'default' getMultiple here by just doing each get individually |
| }, |
| |
| removeMultiple: function(/*array*/ keys, /*string?*/ namespace) { |
| // summary: Removes the given keys from this storage system. |
| |
| // JAC: We could implement a 'default' removeMultiple here by just doing each remove individually |
| console.warn("dojox.storage.remove not implemented"); |
| }, |
| |
| isValidKeyArray: function( keys) { |
| if(keys === null || typeof keys === "undefined" || ! keys instanceof Array){ |
| return false; |
| } |
| |
| // JAC: This could be optimized by running the key validity test directly over a joined string |
| for(var k=0;k<keys.length;k++){ |
| if(!this.isValidKey(keys[k])){ |
| return false; |
| } |
| } |
| return true; |
| }, |
| |
| hasSettingsUI: function(){ /*Boolean*/ |
| // summary: Determines whether this provider has a settings UI. |
| return false; |
| }, |
| |
| showSettingsUI: function(){ |
| // summary: If this provider has a settings UI, determined |
| // by calling hasSettingsUI(), it is shown. |
| console.warn("dojox.storage.showSettingsUI not implemented"); |
| }, |
| |
| hideSettingsUI: function(){ |
| // summary: If this provider has a settings UI, hides it. |
| console.warn("dojox.storage.hideSettingsUI not implemented"); |
| }, |
| |
| isValidKey: function(/*string*/ keyName){ /*Boolean*/ |
| // summary: |
| // Subclasses can call this to ensure that the key given is valid |
| // in a consistent way across different storage providers. We use |
| // the lowest common denominator for key values allowed: only |
| // letters, numbers, and underscores are allowed. No spaces. |
| if((keyName == null)||(typeof keyName == "undefined")){ |
| return false; |
| } |
| |
| return /^[0-9A-Za-z_]*$/.test(keyName); |
| }, |
| |
| getResourceList: function(){ /* Array[] */ |
| // summary: |
| // Returns a list of URLs that this |
| // storage provider might depend on. |
| // description: |
| // This method returns a list of URLs that this |
| // storage provider depends on to do its work. |
| // This list is used by the Dojo Offline Toolkit |
| // to cache these resources to ensure the machinery |
| // used by this storage provider is available offline. |
| // What is returned is an array of URLs. |
| |
| return []; |
| } |
| }); |
| |
| } |
| |
| if(!dojo._hasResource["dojox.storage.manager"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. |
| dojo._hasResource["dojox.storage.manager"] = true; |
| dojo.provide("dojox.storage.manager"); |
| //dojo.require("dojo.AdapterRegistry"); |
| // FIXME: refactor this to use an AdapterRegistry |
| |
| dojox.storage.manager = new function(){ |
| // summary: A singleton class in charge of the dojox.storage system |
| // description: |
| // Initializes the storage systems and figures out the best available |
| // storage options on this platform. |
| |
| // currentProvider: Object |
| // The storage provider that was automagically chosen to do storage |
| // on this platform, such as dojox.storage.FlashStorageProvider. |
| this.currentProvider = null; |
| |
| // available: Boolean |
| // Whether storage of some kind is available. |
| this.available = false; |
| |
| this._initialized = false; |
| |
| this._providers = []; |
| this._onLoadListeners = []; |
| |
| this.initialize = function(){ |
| // summary: |
| // Initializes the storage system and autodetects the best storage |
| // provider we can provide on this platform |
| this.autodetect(); |
| }; |
| |
| this.register = function(/*string*/ name, /*Object*/ instance){ |
| // summary: |
| // Registers the existence of a new storage provider; used by |
| // subclasses to inform the manager of their existence. The |
| // storage manager will select storage providers based on |
| // their ordering, so the order in which you call this method |
| // matters. |
| // name: |
| // The full class name of this provider, such as |
| // "dojox.storage.FlashStorageProvider". |
| // instance: |
| // An instance of this provider, which we will use to call |
| // isAvailable() on. |
| this._providers[this._providers.length] = instance; //FIXME: push? |
| this._providers[name] = instance; // FIXME: this._providers is an array, not a hash |
| }; |
| |
| this.setProvider = function(storageClass){ |
| // summary: |
| // Instructs the storageManager to use the given storage class for |
| // all storage requests. |
| // description: |
| // Example- |
| // dojox.storage.setProvider( |
| // dojox.storage.IEStorageProvider) |
| |
| }; |
| |
| this.autodetect = function(){ |
| // summary: |
| // Autodetects the best possible persistent storage provider |
| // available on this platform. |
| |
| //console.debug("dojox.storage.manager.autodetect"); |
| |
| if(this._initialized){ // already finished |
| //console.debug("dojox.storage.manager already initialized; returning"); |
| return; |
| } |
| |
| // a flag to force the storage manager to use a particular |
| // storage provider type, such as |
| // djConfig = {forceStorageProvider: "dojox.storage.WhatWGStorageProvider"}; |
| var forceProvider = djConfig["forceStorageProvider"]||false; |
| |
| // go through each provider, seeing if it can be used |
| var providerToUse; |
| //FIXME: use dojo.some |
| for(var i = 0; i < this._providers.length; i++){ |
| providerToUse = this._providers[i]; |
| if(forceProvider == providerToUse.declaredClass){ |
| // still call isAvailable for this provider, since this helps some |
| // providers internally figure out if they are available |
| // FIXME: This should be refactored since it is non-intuitive |
| // that isAvailable() would initialize some state |
| providerToUse.isAvailable(); |
| break; |
| }else if(providerToUse.isAvailable()){ |
| break; |
| } |
| } |
| |
| if(!providerToUse){ // no provider available |
| this._initialized = true; |
| this.available = false; |
| this.currentProvider = null; |
| console.warn("No storage provider found for this platform"); |
| this.loaded(); |
| return; |
| } |
| |
| // create this provider and mix in it's properties |
| // so that developers can do dojox.storage.put rather |
| // than dojox.storage.currentProvider.put, for example |
| this.currentProvider = providerToUse; |
| dojo.mixin(dojox.storage, this.currentProvider); |
| |
| // have the provider initialize itself |
| dojox.storage.initialize(); |
| |
| this._initialized = true; |
| this.available = true; |
| }; |
| |
| this.isAvailable = function(){ /*Boolean*/ |
| // summary: Returns whether any storage options are available. |
| return this.available; |
| }; |
| |
| this.addOnLoad = function(func){ /* void */ |
| // summary: |
| // Adds an onload listener to know when Dojo Offline can be used. |
| // description: |
| // Adds a listener to know when Dojo Offline can be used. This |
| // ensures that the Dojo Offline framework is loaded and that the |
| // local dojox.storage system is ready to be used. This method is |
| // useful if you don't want to have a dependency on Dojo Events |
| // when using dojox.storage. |
| // func: Function |
| // A function to call when Dojo Offline is ready to go |
| this._onLoadListeners.push(func); |
| |
| if(this.isInitialized()){ |
| this._fireLoaded(); |
| } |
| }; |
| |
| this.removeOnLoad = function(func){ /* void */ |
| // summary: Removes the given onLoad listener |
| for(var i = 0; i < this._onLoadListeners.length; i++){ |
| if(func == this._onLoadListeners[i]){ |
| this._onLoadListeners = this._onLoadListeners.splice(i, 1); |
| break; |
| } |
| } |
| }; |
| |
| this.isInitialized = function(){ /*Boolean*/ |
| // summary: |
| // Returns whether the storage system is initialized and ready to |
| // be used. |
| |
| // FIXME: This should REALLY not be in here, but it fixes a tricky |
| // Flash timing bug |
| if(this.currentProvider != null |
| && this.currentProvider.declaredClass == "dojox.storage.FlashStorageProvider" |
| && dojox.flash.ready == false){ |
| return false; |
| }else{ |
| return this._initialized; |
| } |
| }; |
| |
| this.supportsProvider = function(/*string*/ storageClass){ /* Boolean */ |
| // summary: Determines if this platform supports the given storage provider. |
| // description: |
| // Example- |
| // dojox.storage.manager.supportsProvider( |
| // "dojox.storage.InternetExplorerStorageProvider"); |
| |
| // construct this class dynamically |
| try{ |
| // dynamically call the given providers class level isAvailable() |
| // method |
| var provider = eval("new " + storageClass + "()"); |
| var results = provider.isAvailable(); |
| if(!results){ return false; } |
| return results; |
| }catch(e){ |
| return false; |
| } |
| }; |
| |
| this.getProvider = function(){ /* Object */ |
| // summary: Gets the current provider |
| return this.currentProvider; |
| }; |
| |
| this.loaded = function(){ |
| // summary: |
| // The storage provider should call this method when it is loaded |
| // and ready to be used. Clients who will use the provider will |
| // connect to this method to know when they can use the storage |
| // system. You can either use dojo.connect to connect to this |
| // function, or can use dojox.storage.manager.addOnLoad() to add |
| // a listener that does not depend on the dojo.event package. |
| // description: |
| // Example 1- |
| // if(dojox.storage.manager.isInitialized() == false){ |
| // dojo.connect(dojox.storage.manager, "loaded", TestStorage, "initialize"); |
| // }else{ |
| // dojo.connect(dojo, "loaded", TestStorage, "initialize"); |
| // } |
| // Example 2- |
| // dojox.storage.manager.addOnLoad(someFunction); |
| |
| |
| // FIXME: we should just provide a Deferred for this. That way you |
| // don't care when this happens or has happened. Deferreds are in Base |
| this._fireLoaded(); |
| }; |
| |
| this._fireLoaded = function(){ |
| //console.debug("dojox.storage.manager._fireLoaded"); |
| |
| dojo.forEach(this._onLoadListeners, function(i){ |
| try{ |
| i(); |
| }catch(e){ console.debug(e); } |
| }); |
| }; |
| |
| this.getResourceList = function(){ |
| // summary: |
| // Returns a list of whatever resources are necessary for storage |
| // providers to work. |
| // description: |
| // This will return all files needed by all storage providers for |
| // this particular environment type. For example, if we are in the |
| // browser environment, then this will return the hidden SWF files |
| // needed by the FlashStorageProvider, even if we don't need them |
| // for the particular browser we are working within. This is meant |
| // to faciliate Dojo Offline, which must retrieve all resources we |
| // need offline into the offline cache -- we retrieve everything |
| // needed, in case another browser that requires different storage |
| // mechanisms hits the local offline cache. For example, if we |
| // were to sync against Dojo Offline on Firefox 2, then we would |
| // not grab the FlashStorageProvider resources needed for Safari. |
| var results = []; |
| dojo.forEach(dojox.storage.manager._providers, function(currentProvider){ |
| results = results.concat(currentProvider.getResourceList()); |
| }); |
| |
| return results; |
| } |
| }; |
| |
| } |
| |
| if(!dojo._hasResource["dojox._sql._crypto"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. |
| dojo._hasResource["dojox._sql._crypto"] = true; |
| // Taken from http://www.movable-type.co.uk/scripts/aes.html by |
| // Chris Veness (CLA signed); adapted for Dojo and Google Gears Worker Pool |
| // by Brad Neuberg, bkn3@columbia.edu |
| |
| dojo.provide("dojox._sql._crypto"); |
| |
| dojo.mixin(dojox._sql._crypto,{ |
| // _POOL_SIZE: |
| // Size of worker pool to create to help with crypto |
| _POOL_SIZE: 100, |
| |
| encrypt: function(plaintext, password, callback){ |
| // summary: |
| // Use Corrected Block TEA to encrypt plaintext using password |
| // (note plaintext & password must be strings not string objects). |
| // Results will be returned to the 'callback' asychronously. |
| this._initWorkerPool(); |
| |
| var msg ={plaintext: plaintext, password: password}; |
| msg = dojo.toJson(msg); |
| msg = "encr:" + String(msg); |
| |
| this._assignWork(msg, callback); |
| }, |
| |
| decrypt: function(ciphertext, password, callback){ |
| // summary: |
| // Use Corrected Block TEA to decrypt ciphertext using password |
| // (note ciphertext & password must be strings not string objects). |
| // Results will be returned to the 'callback' asychronously. |
| this._initWorkerPool(); |
| |
| var msg ={ciphertext: ciphertext, password: password}; |
| msg = dojo.toJson(msg); |
| msg = "decr:" + String(msg); |
| |
| this._assignWork(msg, callback); |
| }, |
| |
| _initWorkerPool: function(){ |
| // bugs in Google Gears prevents us from dynamically creating |
| // and destroying workers as we need them -- the worker |
| // pool functionality stops working after a number of crypto |
| // cycles (probably related to a memory leak in Google Gears). |
| // this is too bad, since it results in much simpler code. |
| |
| // instead, we have to create a pool of workers and reuse them. we |
| // keep a stack of 'unemployed' Worker IDs that are currently not working. |
| // if a work request comes in, we pop off the 'unemployed' stack |
| // and put them to work, storing them in an 'employed' hashtable, |
| // keyed by their Worker ID with the value being the callback function |
| // that wants the result. when an employed worker is done, we get |
| // a message in our 'manager' which adds this worker back to the |
| // unemployed stack and routes the result to the callback that |
| // wanted it. if all the workers were employed in the past but |
| // more work needed to be done (i.e. it's a tight labor pool ;) |
| // then the work messages are pushed onto |
| // a 'handleMessage' queue as an object tuple{msg: msg, callback: callback} |
| |
| if(!this._manager){ |
| try{ |
| this._manager = google.gears.factory.create("beta.workerpool", "1.0"); |
| this._unemployed = []; |
| this._employed ={}; |
| this._handleMessage = []; |
| |
| var self = this; |
| this._manager.onmessage = function(msg, sender){ |
| // get the callback necessary to serve this result |
| var callback = self._employed["_" + sender]; |
| |
| // make this worker unemployed |
| self._employed["_" + sender] = undefined; |
| self._unemployed.push("_" + sender); |
| |
| // see if we need to assign new work |
| // that was queued up needing to be done |
| if(self._handleMessage.length){ |
| var handleMe = self._handleMessage.shift(); |
| self._assignWork(handleMe.msg, handleMe.callback); |
| } |
| |
| // return results |
| callback(msg); |
| } |
| |
| var workerInit = "function _workerInit(){" |
| + "gearsWorkerPool.onmessage = " |
| + String(this._workerHandler) |
| + ";" |
| + "}"; |
| |
| var code = workerInit + " _workerInit();"; |
| |
| // create our worker pool |
| for(var i = 0; i < this._POOL_SIZE; i++){ |
| this._unemployed.push("_" + this._manager.createWorker(code)); |
| } |
| }catch(exp){ |
| throw exp.message||exp; |
| } |
| } |
| }, |
| |
| _assignWork: function(msg, callback){ |
| // can we immediately assign this work? |
| if(!this._handleMessage.length && this._unemployed.length){ |
| // get an unemployed worker |
| var workerID = this._unemployed.shift().substring(1); // remove _ |
| |
| // list this worker as employed |
| this._employed["_" + workerID] = callback; |
| |
| // do the worke |
| this._manager.sendMessage(msg, workerID); |
| }else{ |
| // we have to queue it up |
| this._handleMessage ={msg: msg, callback: callback}; |
| } |
| }, |
| |
| _workerHandler: function(msg, sender){ |
| |
| /* Begin AES Implementation */ |
| |
| /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ |
| |
| // Sbox is pre-computed multiplicative inverse in GF(2^8) used in SubBytes and KeyExpansion [§5.1.1] |
| var Sbox = [0x63,0x7c,0x77,0x7b,0xf2,0x6b,0x6f,0xc5,0x30,0x01,0x67,0x2b,0xfe,0xd7,0xab,0x76, |
| 0xca,0x82,0xc9,0x7d,0xfa,0x59,0x47,0xf0,0xad,0xd4,0xa2,0xaf,0x9c,0xa4,0x72,0xc0, |
| 0xb7,0xfd,0x93,0x26,0x36,0x3f,0xf7,0xcc,0x34,0xa5,0xe5,0xf1,0x71,0xd8,0x31,0x15, |
| 0x04,0xc7,0x23,0xc3,0x18,0x96,0x05,0x9a,0x07,0x12,0x80,0xe2,0xeb,0x27,0xb2,0x75, |
| 0x09,0x83,0x2c,0x1a,0x1b,0x6e,0x5a,0xa0,0x52,0x3b,0xd6,0xb3,0x29,0xe3,0x2f,0x84, |
| 0x53,0xd1,0x00,0xed,0x20,0xfc,0xb1,0x5b,0x6a,0xcb,0xbe,0x39,0x4a,0x4c,0x58,0xcf, |
| 0xd0,0xef,0xaa,0xfb,0x43,0x4d,0x33,0x85,0x45,0xf9,0x02,0x7f,0x50,0x3c,0x9f,0xa8, |
| 0x51,0xa3,0x40,0x8f,0x92,0x9d,0x38,0xf5,0xbc,0xb6,0xda,0x21,0x10,0xff,0xf3,0xd2, |
| 0xcd,0x0c,0x13,0xec,0x5f,0x97,0x44,0x17,0xc4,0xa7,0x7e,0x3d,0x64,0x5d,0x19,0x73, |
| 0x60,0x81,0x4f,0xdc,0x22,0x2a,0x90,0x88,0x46,0xee,0xb8,0x14,0xde,0x5e,0x0b,0xdb, |
| 0xe0,0x32,0x3a,0x0a,0x49,0x06,0x24,0x5c,0xc2,0xd3,0xac,0x62,0x91,0x95,0xe4,0x79, |
| 0xe7,0xc8,0x37,0x6d,0x8d,0xd5,0x4e,0xa9,0x6c,0x56,0xf4,0xea,0x65,0x7a,0xae,0x08, |
| 0xba,0x78,0x25,0x2e,0x1c,0xa6,0xb4,0xc6,0xe8,0xdd,0x74,0x1f,0x4b,0xbd,0x8b,0x8a, |
| 0x70,0x3e,0xb5,0x66,0x48,0x03,0xf6,0x0e,0x61,0x35,0x57,0xb9,0x86,0xc1,0x1d,0x9e, |
| 0xe1,0xf8,0x98,0x11,0x69,0xd9,0x8e,0x94,0x9b,0x1e,0x87,0xe9,0xce,0x55,0x28,0xdf, |
| 0x8c,0xa1,0x89,0x0d,0xbf,0xe6,0x42,0x68,0x41,0x99,0x2d,0x0f,0xb0,0x54,0xbb,0x16]; |
| |
| // Rcon is Round Constant used for the Key Expansion [1st col is 2^(r-1) in GF(2^8)] [§5.2] |
| var Rcon = [ [0x00, 0x00, 0x00, 0x00], |
| [0x01, 0x00, 0x00, 0x00], |
| [0x02, 0x00, 0x00, 0x00], |
| [0x04, 0x00, 0x00, 0x00], |
| [0x08, 0x00, 0x00, 0x00], |
| [0x10, 0x00, 0x00, 0x00], |
| [0x20, 0x00, 0x00, 0x00], |
| [0x40, 0x00, 0x00, 0x00], |
| [0x80, 0x00, 0x00, 0x00], |
| [0x1b, 0x00, 0x00, 0x00], |
| [0x36, 0x00, 0x00, 0x00] ]; |
| |
| /* |
| * AES Cipher function: encrypt 'input' with Rijndael algorithm |
| * |
| * takes byte-array 'input' (16 bytes) |
| * 2D byte-array key schedule 'w' (Nr+1 x Nb bytes) |
| * |
| * applies Nr rounds (10/12/14) using key schedule w for 'add round key' stage |
| * |
| * returns byte-array encrypted value (16 bytes) |
| */ |
| function Cipher(input, w) { // main Cipher function [§5.1] |
| var Nb = 4; // block size (in words): no of columns in state (fixed at 4 for AES) |
| var Nr = w.length/Nb - 1; // no of rounds: 10/12/14 for 128/192/256-bit keys |
| |
| var state = [[],[],[],[]]; // initialise 4xNb byte-array 'state' with input [§3.4] |
| for (var i=0; i<4*Nb; i++) state[i%4][Math.floor(i/4)] = input[i]; |
| |
| state = AddRoundKey(state, w, 0, Nb); |
| |
| for (var round=1; round<Nr; round++) { |
| state = SubBytes(state, Nb); |
| state = ShiftRows(state, Nb); |
| state = MixColumns(state, Nb); |
| state = AddRoundKey(state, w, round, Nb); |
| } |
| |
| state = SubBytes(state, Nb); |
| state = ShiftRows(state, Nb); |
| state = AddRoundKey(state, w, Nr, Nb); |
| |
| var output = new Array(4*Nb); // convert state to 1-d array before returning [§3.4] |
| for (var i=0; i<4*Nb; i++) output[i] = state[i%4][Math.floor(i/4)]; |
| return output; |
| } |
| |
| |
| function SubBytes(s, Nb) { // apply SBox to state S [§5.1.1] |
| for (var r=0; r<4; r++) { |
| for (var c=0; c<Nb; c++) s[r][c] = Sbox[s[r][c]]; |
| } |
| return s; |
| } |
| |
| |
| function ShiftRows(s, Nb) { // shift row r of state S left by r bytes [§5.1.2] |
| var t = new Array(4); |
| for (var r=1; r<4; r++) { |
| for (var c=0; c<4; c++) t[c] = s[r][(c+r)%Nb]; // shift into temp copy |
| for (var c=0; c<4; c++) s[r][c] = t[c]; // and copy back |
| } // note that this will work for Nb=4,5,6, but not 7,8 (always 4 for AES): |
| return s; // see fp.gladman.plus.com/cryptography_technology/rijndael/aes.spec.311.pdf |
| } |
| |
| |
| function MixColumns(s, Nb) { // combine bytes of each col of state S [§5.1.3] |
| for (var c=0; c<4; c++) { |
| var a = new Array(4); // 'a' is a copy of the current column from 's' |
| var b = new Array(4); // 'b' is a•{02} in GF(2^8) |
| for (var i=0; i<4; i++) { |
| a[i] = s[i][c]; |
| b[i] = s[i][c]&0x80 ? s[i][c]<<1 ^ 0x011b : s[i][c]<<1; |
| } |
| // a[n] ^ b[n] is a•{03} in GF(2^8) |
| s[0][c] = b[0] ^ a[1] ^ b[1] ^ a[2] ^ a[3]; // 2*a0 + 3*a1 + a2 + a3 |
| s[1][c] = a[0] ^ b[1] ^ a[2] ^ b[2] ^ a[3]; // a0 * 2*a1 + 3*a2 + a3 |
| s[2][c] = a[0] ^ a[1] ^ b[2] ^ a[3] ^ b[3]; // a0 + a1 + 2*a2 + 3*a3 |
| s[3][c] = a[0] ^ b[0] ^ a[1] ^ a[2] ^ b[3]; // 3*a0 + a1 + a2 + 2*a3 |
| } |
| return s; |
| } |
| |
| |
| function AddRoundKey(state, w, rnd, Nb) { // xor Round Key into state S [§5.1.4] |
| for (var r=0; r<4; r++) { |
| for (var c=0; c<Nb; c++) state[r][c] ^= w[rnd*4+c][r]; |
| } |
| return state; |
| } |
| |
| |
| function KeyExpansion(key) { // generate Key Schedule (byte-array Nr+1 x Nb) from Key [§5.2] |
| var Nb = 4; // block size (in words): no of columns in state (fixed at 4 for AES) |
| var Nk = key.length/4 // key length (in words): 4/6/8 for 128/192/256-bit keys |
| var Nr = Nk + 6; // no of rounds: 10/12/14 for 128/192/256-bit keys |
| |
| var w = new Array(Nb*(Nr+1)); |
| var temp = new Array(4); |
| |
| for (var i=0; i<Nk; i++) { |
| var r = [key[4*i], key[4*i+1], key[4*i+2], key[4*i+3]]; |
| w[i] = r; |
| } |
| |
| for (var i=Nk; i<(Nb*(Nr+1)); i++) { |
| w[i] = new Array(4); |
| for (var t=0; t<4; t++) temp[t] = w[i-1][t]; |
| if (i % Nk == 0) { |
| temp = SubWord(RotWord(temp)); |
| for (var t=0; t<4; t++) temp[t] ^= Rcon[i/Nk][t]; |
| } else if (Nk > 6 && i%Nk == 4) { |
| temp = SubWord(temp); |
| } |
| for (var t=0; t<4; t++) w[i][t] = w[i-Nk][t] ^ temp[t]; |
| } |
| |
| return w; |
| } |
| |
| function SubWord(w) { // apply SBox to 4-byte word w |
| for (var i=0; i<4; i++) w[i] = Sbox[w[i]]; |
| return w; |
| } |
| |
| function RotWord(w) { // rotate 4-byte word w left by one byte |
| w[4] = w[0]; |
| for (var i=0; i<4; i++) w[i] = w[i+1]; |
| return w; |
| } |
| |
| /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ |
| |
| /* |
| * Use AES to encrypt 'plaintext' with 'password' using 'nBits' key, in 'Counter' mode of operation |
| * - see http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf |
| * for each block |
| * - outputblock = cipher(counter, key) |
| * - cipherblock = plaintext xor outputblock |
| */ |
| function AESEncryptCtr(plaintext, password, nBits) { |
| if (!(nBits==128 || nBits==192 || nBits==256)) return ''; // standard allows 128/192/256 bit keys |
| |
| // for this example script, generate the key by applying Cipher to 1st 16/24/32 chars of password; |
| // for real-world applications, a more secure approach would be to hash the password e.g. with SHA-1 |
| var nBytes = nBits/8; // no bytes in key |
| var pwBytes = new Array(nBytes); |
| for (var i=0; i<nBytes; i++) pwBytes[i] = password.charCodeAt(i) & 0xff; |
| |
| var key = Cipher(pwBytes, KeyExpansion(pwBytes)); |
| |
| key = key.concat(key.slice(0, nBytes-16)); // key is now 16/24/32 bytes long |
| |
| // initialise counter block (NIST SP800-38A §B.2): millisecond time-stamp for nonce in 1st 8 bytes, |
| // block counter in 2nd 8 bytes |
| var blockSize = 16; // block size fixed at 16 bytes / 128 bits (Nb=4) for AES |
| var counterBlock = new Array(blockSize); // block size fixed at 16 bytes / 128 bits (Nb=4) for AES |
| var nonce = (new Date()).getTime(); // milliseconds since 1-Jan-1970 |
| |
| // encode nonce in two stages to cater for JavaScript 32-bit limit on bitwise ops |
| for (var i=0; i<4; i++) counterBlock[i] = (nonce >>> i*8) & 0xff; |
| for (var i=0; i<4; i++) counterBlock[i+4] = (nonce/0x100000000 >>> i*8) & 0xff; |
| |
| // generate key schedule - an expansion of the key into distinct Key Rounds for each round |
| var keySchedule = KeyExpansion(key); |
| |
| var blockCount = Math.ceil(plaintext.length/blockSize); |
| var ciphertext = new Array(blockCount); // ciphertext as array of strings |
| |
| for (var b=0; b<blockCount; b++) { |
| // set counter (block #) in last 8 bytes of counter block (leaving nonce in 1st 8 bytes) |
| // again done in two stages for 32-bit ops |
| for (var c=0; c<4; c++) counterBlock[15-c] = (b >>> c*8) & 0xff; |
| for (var c=0; c<4; c++) counterBlock[15-c-4] = (b/0x100000000 >>> c*8) |
| |
| var cipherCntr = Cipher(counterBlock, keySchedule); // -- encrypt counter block -- |
| |
| // calculate length of final block: |
| var blockLength = b<blockCount-1 ? blockSize : (plaintext.length-1)%blockSize+1; |
| |
| var ct = ''; |
| for (var i=0; i<blockLength; i++) { // -- xor plaintext with ciphered counter byte-by-byte -- |
| var plaintextByte = plaintext.charCodeAt(b*blockSize+i); |
| var cipherByte = plaintextByte ^ cipherCntr[i]; |
| ct += String.fromCharCode(cipherByte); |
| } |
| // ct is now ciphertext for this block |
| |
| ciphertext[b] = escCtrlChars(ct); // escape troublesome characters in ciphertext |
| } |
| |
| // convert the nonce to a string to go on the front of the ciphertext |
| var ctrTxt = ''; |
| for (var i=0; i<8; i++) ctrTxt += String.fromCharCode(counterBlock[i]); |
| ctrTxt = escCtrlChars(ctrTxt); |
| |
| // use '-' to separate blocks, use Array.join to concatenate arrays of strings for efficiency |
| return ctrTxt + '-' + ciphertext.join('-'); |
| } |
| |
| |
| /* |
| * Use AES to decrypt 'ciphertext' with 'password' using 'nBits' key, in Counter mode of operation |
| * |
| * for each block |
| * - outputblock = cipher(counter, key) |
| * - cipherblock = plaintext xor outputblock |
| */ |
| function AESDecryptCtr(ciphertext, password, nBits) { |
| if (!(nBits==128 || nBits==192 || nBits==256)) return ''; // standard allows 128/192/256 bit keys |
| |
| var nBytes = nBits/8; // no bytes in key |
| var pwBytes = new Array(nBytes); |
| for (var i=0; i<nBytes; i++) pwBytes[i] = password.charCodeAt(i) & 0xff; |
| var pwKeySchedule = KeyExpansion(pwBytes); |
| var key = Cipher(pwBytes, pwKeySchedule); |
| key = key.concat(key.slice(0, nBytes-16)); // key is now 16/24/32 bytes long |
| |
| var keySchedule = KeyExpansion(key); |
| |
| ciphertext = ciphertext.split('-'); // split ciphertext into array of block-length strings |
| |
| // recover nonce from 1st element of ciphertext |
| var blockSize = 16; // block size fixed at 16 bytes / 128 bits (Nb=4) for AES |
| var counterBlock = new Array(blockSize); |
| var ctrTxt = unescCtrlChars(ciphertext[0]); |
| for (var i=0; i<8; i++) counterBlock[i] = ctrTxt.charCodeAt(i); |
| |
| var plaintext = new Array(ciphertext.length-1); |
| |
| for (var b=1; b<ciphertext.length; b++) { |
| // set counter (block #) in last 8 bytes of counter block (leaving nonce in 1st 8 bytes) |
| for (var c=0; c<4; c++) counterBlock[15-c] = ((b-1) >>> c*8) & 0xff; |
| for (var c=0; c<4; c++) counterBlock[15-c-4] = ((b/0x100000000-1) >>> c*8) & 0xff; |
| |
| var cipherCntr = Cipher(counterBlock, keySchedule); // encrypt counter block |
| |
| ciphertext[b] = unescCtrlChars(ciphertext[b]); |
| |
| var pt = ''; |
| for (var i=0; i<ciphertext[b].length; i++) { |
| // -- xor plaintext with ciphered counter byte-by-byte -- |
| var ciphertextByte = ciphertext[b].charCodeAt(i); |
| var plaintextByte = ciphertextByte ^ cipherCntr[i]; |
| pt += String.fromCharCode(plaintextByte); |
| } |
| // pt is now plaintext for this block |
| |
| plaintext[b-1] = pt; // b-1 'cos no initial nonce block in plaintext |
| } |
| |
| return plaintext.join(''); |
| } |
| |
| /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ |
| |
| function escCtrlChars(str) { // escape control chars which might cause problems handling ciphertext |
| return str.replace(/[\0\t\n\v\f\r\xa0!-]/g, function(c) { return '!' + c.charCodeAt(0) + '!'; }); |
| } // \xa0 to cater for bug in Firefox; include '-' to leave it free for use as a block marker |
| |
| function unescCtrlChars(str) { // unescape potentially problematic control characters |
| return str.replace(/!\d\d?\d?!/g, function(c) { return String.fromCharCode(c.slice(1,-1)); }); |
| } |
| |
| /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ |
| |
| function encrypt(plaintext, password){ |
| return AESEncryptCtr(plaintext, password, 256); |
| } |
| |
| function decrypt(ciphertext, password){ |
| return AESDecryptCtr(ciphertext, password, 256); |
| } |
| |
| /* End AES Implementation */ |
| |
| var cmd = msg.substr(0,4); |
| var arg = msg.substr(5); |
| if(cmd == "encr"){ |
| arg = eval("(" + arg + ")"); |
| var plaintext = arg.plaintext; |
| var password = arg.password; |
| var results = encrypt(plaintext, password); |
| gearsWorkerPool.sendMessage(String(results), sender); |
| }else if(cmd == "decr"){ |
| arg = eval("(" + arg + ")"); |
| var ciphertext = arg.ciphertext; |
| var password = arg.password; |
| var results = decrypt(ciphertext, password); |
| gearsWorkerPool.sendMessage(String(results), sender); |
| } |
| } |
| }); |
| |
| } |
| |
| if(!dojo._hasResource["dojox._sql.common"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. |
| dojo._hasResource["dojox._sql.common"] = true; |
| dojo.provide("dojox._sql.common"); |
| |
| |
| |
| // summary: |
| // Executes a SQL expression. |
| // description: |
| // There are four ways to call this: |
| // 1) Straight SQL: dojox.sql("SELECT * FROM FOOBAR"); |
| // 2) SQL with parameters: dojox.sql("INSERT INTO FOOBAR VALUES (?)", someParam) |
| // 3) Encrypting particular values: |
| // dojox.sql("INSERT INTO FOOBAR VALUES (ENCRYPT(?))", someParam, "somePassword", callback) |
| // 4) Decrypting particular values: |
| // dojox.sql("SELECT DECRYPT(SOMECOL1), DECRYPT(SOMECOL2) FROM |
| // FOOBAR WHERE SOMECOL3 = ?", someParam, |
| // "somePassword", callback) |
| // |
| // For encryption and decryption the last two values should be the the password for |
| // encryption/decryption, and the callback function that gets the result set. |
| // |
| // Note: We only support ENCRYPT(?) statements, and |
| // and DECRYPT(*) statements for now -- you can not have a literal string |
| // inside of these, such as ENCRYPT('foobar') |
| // |
| // Note: If you have multiple columns to encrypt and decrypt, you can use the following |
| // convenience form to not have to type ENCRYPT(?)/DECRYPT(*) many times: |
| // |
| // dojox.sql("INSERT INTO FOOBAR VALUES (ENCRYPT(?, ?, ?))", |
| // someParam1, someParam2, someParam3, |
| // "somePassword", callback) |
| // |
| // dojox.sql("SELECT DECRYPT(SOMECOL1, SOMECOL2) FROM |
| // FOOBAR WHERE SOMECOL3 = ?", someParam, |
| // "somePassword", callback) |
| dojox.sql = new Function("return dojox.sql._exec(arguments);"); |
| |
| dojo.mixin(dojox.sql, { |
| dbName: null, |
| |
| // summary: |
| // If true, then we print out any SQL that is executed |
| // to the debug window |
| debug: (dojo.exists("dojox.sql.debug")?dojox.sql.debug:false), |
| |
| open: function(dbName){ |
| if(this._dbOpen && (!dbName || dbName == this.dbName)){ |
| return; |
| } |
| |
| if(!this.dbName){ |
| this.dbName = "dot_store_" |
| + window.location.href.replace(/[^0-9A-Za-z_]/g, "_"); |
| //console.debug("Using Google Gears database " + this.dbName); |
| } |
| |
| if(!dbName){ |
| dbName = this.dbName; |
| } |
| |
| try{ |
| this._initDb(); |
| this.db.open(dbName); |
| this._dbOpen = true; |
| }catch(exp){ |
| throw exp.message||exp; |
| } |
| }, |
| |
| close: function(dbName){ |
| // on Internet Explorer, Google Gears throws an exception |
| // "Object not a collection", when we try to close the |
| // database -- just don't close it on this platform |
| // since we are running into a Gears bug; the Gears team |
| // said it's ok to not close a database connection |
| if(dojo.isIE){ return; } |
| |
| if(!this._dbOpen && (!dbName || dbName == this.dbName)){ |
| return; |
| } |
| |
| if(!dbName){ |
| dbName = this.dbName; |
| } |
| |
| try{ |
| this.db.close(dbName); |
| this._dbOpen = false; |
| }catch(exp){ |
| throw exp.message||exp; |
| } |
| }, |
| |
| _exec: function(params){ |
| try{ |
| // get the Gears Database object |
| this._initDb(); |
| |
| // see if we need to open the db; if programmer |
| // manually called dojox.sql.open() let them handle |
| // it; otherwise we open and close automatically on |
| // each SQL execution |
| if(!this._dbOpen){ |
| this.open(); |
| this._autoClose = true; |
| } |
| |
| // determine our parameters |
| var sql = null; |
| var callback = null; |
| var password = null; |
| |
| var args = dojo._toArray(params); |
| |
| sql = args.splice(0, 1)[0]; |
| |
| // does this SQL statement use the ENCRYPT or DECRYPT |
| // keywords? if so, extract our callback and crypto |
| // password |
| if(this._needsEncrypt(sql) || this._needsDecrypt(sql)){ |
| callback = args.splice(args.length - 1, 1)[0]; |
| password = args.splice(args.length - 1, 1)[0]; |
| } |
| |
| // 'args' now just has the SQL parameters |
| |
| // print out debug SQL output if the developer wants that |
| if(this.debug){ |
| this._printDebugSQL(sql, args); |
| } |
| |
| // handle SQL that needs encryption/decryption differently |
| // do we have an ENCRYPT SQL statement? if so, handle that first |
| if(this._needsEncrypt(sql)){ |
| var crypto = new dojox.sql._SQLCrypto("encrypt", sql, |
| password, args, |
| callback); |
| return; // encrypted results will arrive asynchronously |
| }else if(this._needsDecrypt(sql)){ // otherwise we have a DECRYPT statement |
| var crypto = new dojox.sql._SQLCrypto("decrypt", sql, |
| password, args, |
| callback); |
| return; // decrypted results will arrive asynchronously |
| } |
| |
| // execute the SQL and get the results |
| var rs = this.db.execute(sql, args); |
| |
| // Gears ResultSet object's are ugly -- normalize |
| // these into something JavaScript programmers know |
| // how to work with, basically an array of |
| // JavaScript objects where each property name is |
| // simply the field name for a column of data |
| rs = this._normalizeResults(rs); |
| |
| if(this._autoClose){ |
| this.close(); |
| } |
| |
| return rs; |
| }catch(exp){ |
| exp = exp.message||exp; |
| |
| console.debug("SQL Exception: " + exp); |
| |
| if(this._autoClose){ |
| try{ |
| this.close(); |
| }catch(e){ |
| console.debug("Error closing database: " |
| + e.message||e); |
| } |
| } |
| |
| throw exp; |
| } |
| }, |
| |
| _initDb: function(){ |
| if(!this.db){ |
| try{ |
| this.db = google.gears.factory.create('beta.database', '1.0'); |
| }catch(exp){ |
| dojo.setObject("google.gears.denied", true); |
| dojox.off.onFrameworkEvent("coreOperationFailed"); |
| throw "Google Gears must be allowed to run"; |
| } |
| } |
| }, |
| |
| _printDebugSQL: function(sql, args){ |
| var msg = "dojox.sql(\"" + sql + "\""; |
| for(var i = 0; i < args.length; i++){ |
| if(typeof args[i] == "string"){ |
| msg += ", \"" + args[i] + "\""; |
| }else{ |
| msg += ", " + args[i]; |
| } |
| } |
| msg += ")"; |
| |
| console.debug(msg); |
| }, |
| |
| _normalizeResults: function(rs){ |
| var results = []; |
| if(!rs){ return []; } |
| |
| while(rs.isValidRow()){ |
| var row = {}; |
| |
| for(var i = 0; i < rs.fieldCount(); i++){ |
| var fieldName = rs.fieldName(i); |
| var fieldValue = rs.field(i); |
| row[fieldName] = fieldValue; |
| } |
| |
| results.push(row); |
| |
| rs.next(); |
| } |
| |
| rs.close(); |
| |
| return results; |
| }, |
| |
| _needsEncrypt: function(sql){ |
| return /encrypt\([^\)]*\)/i.test(sql); |
| }, |
| |
| _needsDecrypt: function(sql){ |
| return /decrypt\([^\)]*\)/i.test(sql); |
| } |
| }); |
| |
| // summary: |
| // A private class encapsulating any cryptography that must be done |
| // on a SQL statement. We instantiate this class and have it hold |
| // it's state so that we can potentially have several encryption |
| // operations happening at the same time by different SQL statements. |
| dojo.declare("dojox.sql._SQLCrypto", null, { |
| constructor: function(action, sql, password, args, callback){ |
| if(action == "encrypt"){ |
| this._execEncryptSQL(sql, password, args, callback); |
| }else{ |
| this._execDecryptSQL(sql, password, args, callback); |
| } |
| }, |
| |
| _execEncryptSQL: function(sql, password, args, callback){ |
| // strip the ENCRYPT/DECRYPT keywords from the SQL |
| var strippedSQL = this._stripCryptoSQL(sql); |
| |
| // determine what arguments need encryption |
| var encryptColumns = this._flagEncryptedArgs(sql, args); |
| |
| // asynchronously encrypt each argument that needs it |
| var self = this; |
| this._encrypt(strippedSQL, password, args, encryptColumns, function(finalArgs){ |
| // execute the SQL |
| var error = false; |
| var resultSet = []; |
| var exp = null; |
| try{ |
| resultSet = dojox.sql.db.execute(strippedSQL, finalArgs); |
| }catch(execError){ |
| error = true; |
| exp = execError.message||execError; |
| } |
| |
| // was there an error during SQL execution? |
| if(exp != null){ |
| if(dojox.sql._autoClose){ |
| try{ dojox.sql.close(); }catch(e){} |
| } |
| |
| callback(null, true, exp.toString()); |
| return; |
| } |
| |
| // normalize SQL results into a JavaScript object |
| // we can work with |
| resultSet = dojox.sql._normalizeResults(resultSet); |
| |
| if(dojox.sql._autoClose){ |
| dojox.sql.close(); |
| } |
| |
| // are any decryptions necessary on the result set? |
| if(dojox.sql._needsDecrypt(sql)){ |
| // determine which of the result set columns needs decryption |
| var needsDecrypt = self._determineDecryptedColumns(sql); |
| |
| // now decrypt columns asynchronously |
| // decrypt columns that need it |
| self._decrypt(resultSet, needsDecrypt, password, function(finalResultSet){ |
| callback(finalResultSet, false, null); |
| }); |
| }else{ |
| callback(resultSet, false, null); |
| } |
| }); |
| }, |
| |
| _execDecryptSQL: function(sql, password, args, callback){ |
| // strip the ENCRYPT/DECRYPT keywords from the SQL |
| var strippedSQL = this._stripCryptoSQL(sql); |
| |
| // determine which columns needs decryption; this either |
| // returns the value *, which means all result set columns will |
| // be decrypted, or it will return the column names that need |
| // decryption set on a hashtable so we can quickly test a given |
| // column name; the key is the column name that needs |
| // decryption and the value is 'true' (i.e. needsDecrypt["someColumn"] |
| // would return 'true' if it needs decryption, and would be 'undefined' |
| // or false otherwise) |
| var needsDecrypt = this._determineDecryptedColumns(sql); |
| |
| // execute the SQL |
| var error = false; |
| var resultSet = []; |
| var exp = null; |
| try{ |
| resultSet = dojox.sql.db.execute(strippedSQL, args); |
| }catch(execError){ |
| error = true; |
| exp = execError.message||execError; |
| } |
| |
| // was there an error during SQL execution? |
| if(exp != null){ |
| if(dojox.sql._autoClose){ |
| try{ dojox.sql.close(); }catch(e){} |
| } |
| |
| callback(resultSet, true, exp.toString()); |
| return; |
| } |
| |
| // normalize SQL results into a JavaScript object |
| // we can work with |
| resultSet = dojox.sql._normalizeResults(resultSet); |
| |
| if(dojox.sql._autoClose){ |
| dojox.sql.close(); |
| } |
| |
| // decrypt columns that need it |
| this._decrypt(resultSet, needsDecrypt, password, function(finalResultSet){ |
| callback(finalResultSet, false, null); |
| }); |
| }, |
| |
| _encrypt: function(sql, password, args, encryptColumns, callback){ |
| //console.debug("_encrypt, sql="+sql+", password="+password+", encryptColumns="+encryptColumns+", args="+args); |
| |
| this._totalCrypto = 0; |
| this._finishedCrypto = 0; |
| this._finishedSpawningCrypto = false; |
| this._finalArgs = args; |
| |
| for(var i = 0; i < args.length; i++){ |
| if(encryptColumns[i]){ |
| // we have an encrypt() keyword -- get just the value inside |
| // the encrypt() parantheses -- for now this must be a ? |
| var sqlParam = args[i]; |
| var paramIndex = i; |
| |
| // update the total number of encryptions we know must be done asynchronously |
| this._totalCrypto++; |
| |
| // FIXME: This currently uses DES as a proof-of-concept since the |
| // DES code used is quite fast and was easy to work with. Modify dojox.sql |
| // to be able to specify a different encryption provider through a |
| // a SQL-like syntax, such as dojox.sql("SET ENCRYPTION BLOWFISH"), |
| // and modify the dojox.crypto.Blowfish code to be able to work using |
| // a Google Gears Worker Pool |
| |
| // do the actual encryption now, asychronously on a Gears worker thread |
| dojox._sql._crypto.encrypt(sqlParam, password, dojo.hitch(this, function(results){ |
| // set the new encrypted value |
| this._finalArgs[paramIndex] = results; |
| this._finishedCrypto++; |
| // are we done with all encryption? |
| if(this._finishedCrypto >= this._totalCrypto |
| && this._finishedSpawningCrypto){ |
| callback(this._finalArgs); |
| } |
| })); |
| } |
| } |
| |
| this._finishedSpawningCrypto = true; |
| }, |
| |
| _decrypt: function(resultSet, needsDecrypt, password, callback){ |
| //console.debug("decrypt, resultSet="+resultSet+", needsDecrypt="+needsDecrypt+", password="+password); |
| |
| this._totalCrypto = 0; |
| this._finishedCrypto = 0; |
| this._finishedSpawningCrypto = false; |
| this._finalResultSet = resultSet; |
| |
| for(var i = 0; i < resultSet.length; i++){ |
| var row = resultSet[i]; |
| |
| // go through each of the column names in row, |
| // seeing if they need decryption |
| for(var columnName in row){ |
| if(needsDecrypt == "*" || needsDecrypt[columnName]){ |
| this._totalCrypto++; |
| var columnValue = row[columnName]; |
| |
| // forming a closure here can cause issues, with values not cleanly |
| // saved on Firefox/Mac OS X for some of the values above that |
| // are needed in the callback below; call a subroutine that will form |
| // a closure inside of itself instead |
| this._decryptSingleColumn(columnName, columnValue, password, i, |
| function(finalResultSet){ |
| callback(finalResultSet); |
| }); |
| } |
| } |
| } |
| |
| this._finishedSpawningCrypto = true; |
| }, |
| |
| _stripCryptoSQL: function(sql){ |
| // replace all DECRYPT(*) occurrences with a * |
| sql = sql.replace(/DECRYPT\(\*\)/ig, "*"); |
| |
| // match any ENCRYPT(?, ?, ?, etc) occurrences, |
| // then replace with just the question marks in the |
| // middle |
| var matches = sql.match(/ENCRYPT\([^\)]*\)/ig); |
| if(matches != null){ |
| for(var i = 0; i < matches.length; i++){ |
| var encryptStatement = matches[i]; |
| var encryptValue = encryptStatement.match(/ENCRYPT\(([^\)]*)\)/i)[1]; |
| sql = sql.replace(encryptStatement, encryptValue); |
| } |
| } |
| |
| // match any DECRYPT(COL1, COL2, etc) occurrences, |
| // then replace with just the column names |
| // in the middle |
| matches = sql.match(/DECRYPT\([^\)]*\)/ig); |
| if(matches != null){ |
| for(var i = 0; i < matches.length; i++){ |
| var decryptStatement = matches[i]; |
| var decryptValue = decryptStatement.match(/DECRYPT\(([^\)]*)\)/i)[1]; |
| sql = sql.replace(decryptStatement, decryptValue); |
| } |
| } |
| |
| return sql; |
| }, |
| |
| _flagEncryptedArgs: function(sql, args){ |
| // capture literal strings that have question marks in them, |
| // and also capture question marks that stand alone |
| var tester = new RegExp(/([\"][^\"]*\?[^\"]*[\"])|([\'][^\']*\?[^\']*[\'])|(\?)/ig); |
| var matches; |
| var currentParam = 0; |
| var results = []; |
| while((matches = tester.exec(sql)) != null){ |
| var currentMatch = RegExp.lastMatch+""; |
| |
| // are we a literal string? then ignore it |
| if(/^[\"\']/.test(currentMatch)){ |
| continue; |
| } |
| |
| // do we have an encrypt keyword to our left? |
| var needsEncrypt = false; |
| if(/ENCRYPT\([^\)]*$/i.test(RegExp.leftContext)){ |
| needsEncrypt = true; |
| } |
| |
| // set the encrypted flag |
| results[currentParam] = needsEncrypt; |
| |
| currentParam++; |
| } |
| |
| return results; |
| }, |
| |
| _determineDecryptedColumns: function(sql){ |
| var results = {}; |
| |
| if(/DECRYPT\(\*\)/i.test(sql)){ |
| results = "*"; |
| }else{ |
| var tester = /DECRYPT\((?:\s*\w*\s*\,?)*\)/ig; |
| var matches; |
| while(matches = tester.exec(sql)){ |
| var lastMatch = new String(RegExp.lastMatch); |
| var columnNames = lastMatch.replace(/DECRYPT\(/i, ""); |
| columnNames = columnNames.replace(/\)/, ""); |
| columnNames = columnNames.split(/\s*,\s*/); |
| dojo.forEach(columnNames, function(column){ |
| if(/\s*\w* AS (\w*)/i.test(column)){ |
| column = column.match(/\s*\w* AS (\w*)/i)[1]; |
| } |
| results[column] = true; |
| }); |
| } |
| } |
| |
| return results; |
| }, |
| |
| _decryptSingleColumn: function(columnName, columnValue, password, currentRowIndex, |
| callback){ |
| //console.debug("decryptSingleColumn, columnName="+columnName+", columnValue="+columnValue+", currentRowIndex="+currentRowIndex) |
| dojox._sql._crypto.decrypt(columnValue, password, dojo.hitch(this, function(results){ |
| // set the new decrypted value |
| this._finalResultSet[currentRowIndex][columnName] = results; |
| this._finishedCrypto++; |
| |
| // are we done with all encryption? |
| if(this._finishedCrypto >= this._totalCrypto |
| && this._finishedSpawningCrypto){ |
| //console.debug("done with all decrypts"); |
| callback(this._finalResultSet); |
| } |
| })); |
| } |
| }); |
| |
| } |
| |
| if(!dojo._hasResource["dojox.sql"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. |
| dojo._hasResource["dojox.sql"] = true; |
| |
| dojo.provide("dojox.sql"); |
| |
| } |
| |
| if(!dojo._hasResource["dojox.storage.GearsStorageProvider"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. |
| dojo._hasResource["dojox.storage.GearsStorageProvider"] = true; |
| dojo.provide("dojox.storage.GearsStorageProvider"); |
| |
| |
| |
| |
| if(dojo.isGears){ |
| |
| (function(){ |
| // make sure we don't define the gears provider if we're not gears |
| // enabled |
| |
| dojo.declare("dojox.storage.GearsStorageProvider", dojox.storage.Provider, { |
| // summary: |
| // Storage provider that uses the features of Google Gears |
| // to store data (it is saved into the local SQL database |
| // provided by Gears, using dojox.sql) |
| // description: |
| // |
| // |
| // You can disable this storage provider with the following djConfig |
| // variable: |
| // var djConfig = { disableGearsStorage: true }; |
| // |
| // Authors of this storage provider- |
| // Brad Neuberg, bkn3@columbia.edu |
| constructor: function(){ |
| }, |
| // instance methods and properties |
| TABLE_NAME: "__DOJO_STORAGE", |
| initialized: false, |
| |
| _available: null, |
| |
| initialize: function(){ |
| //console.debug("dojox.storage.GearsStorageProvider.initialize"); |
| if(djConfig["disableGearsStorage"] == true){ |
| return; |
| } |
| |
| // partition our storage data so that multiple apps |
| // on the same host won't collide |
| this.TABLE_NAME = "__DOJO_STORAGE"; |
| |
| // create the table that holds our data |
| try{ |
| dojox.sql("CREATE TABLE IF NOT EXISTS " + this.TABLE_NAME + "( " |
| + " namespace TEXT, " |
| + " key TEXT, " |
| + " value TEXT " |
| + ")" |
| ); |
| dojox.sql("CREATE UNIQUE INDEX IF NOT EXISTS namespace_key_index" |
| + " ON " + this.TABLE_NAME |
| + " (namespace, key)"); |
| }catch(e){ |
| console.debug("dojox.storage.GearsStorageProvider.initialize:", e); |
| |
| this.initialized = false; // we were unable to initialize |
| dojox.storage.manager.loaded(); |
| return; |
| } |
| |
| // indicate that this storage provider is now loaded |
| this.initialized = true; |
| dojox.storage.manager.loaded(); |
| }, |
| |
| isAvailable: function(){ |
| // is Google Gears available and defined? |
| return this._available = dojo.isGears; |
| }, |
| |
| put: function(key, value, resultsHandler, namespace){ |
| if(this.isValidKey(key) == false){ |
| throw new Error("Invalid key given: " + key); |
| } |
| namespace = namespace||this.DEFAULT_NAMESPACE; |
| |
| // serialize the value; |
| // handle strings differently so they have better performance |
| if(dojo.isString(value)){ |
| value = "string:" + value; |
| }else{ |
| value = dojo.toJson(value); |
| } |
| |
| // try to store the value |
| try{ |
| dojox.sql("DELETE FROM " + this.TABLE_NAME |
| + " WHERE namespace = ? AND key = ?", |
| namespace, key); |
| dojox.sql("INSERT INTO " + this.TABLE_NAME |
| + " VALUES (?, ?, ?)", |
| namespace, key, value); |
| }catch(e){ |
| // indicate we failed |
| console.debug("dojox.storage.GearsStorageProvider.put:", e); |
| resultsHandler(this.FAILED, key, e.toString()); |
| return; |
| } |
| |
| if(resultsHandler){ |
| resultsHandler(dojox.storage.SUCCESS, key, null); |
| } |
| }, |
| |
| get: function(key, namespace){ |
| if(this.isValidKey(key) == false){ |
| throw new Error("Invalid key given: " + key); |
| } |
| namespace = namespace||this.DEFAULT_NAMESPACE; |
| |
| // try to find this key in the database |
| var results = dojox.sql("SELECT * FROM " + this.TABLE_NAME |
| + " WHERE namespace = ? AND " |
| + " key = ?", |
| namespace, key); |
| if(!results.length){ |
| return null; |
| }else{ |
| results = results[0].value; |
| } |
| |
| // destringify the content back into a |
| // real JavaScript object; |
| // handle strings differently so they have better performance |
| if(dojo.isString(results) && (/^string:/.test(results))){ |
| results = results.substring("string:".length); |
| }else{ |
| results = dojo.fromJson(results); |
| } |
| |
| return results; |
| }, |
| |
| getNamespaces: function(){ |
| var results = [ dojox.storage.DEFAULT_NAMESPACE ]; |
| |
| var rs = dojox.sql("SELECT namespace FROM " + this.TABLE_NAME |
| + " DESC GROUP BY namespace"); |
| for(var i = 0; i < rs.length; i++){ |
| if(rs[i].namespace != dojox.storage.DEFAULT_NAMESPACE){ |
| results.push(rs[i].namespace); |
| } |
| } |
| |
| return results; |
| }, |
| |
| getKeys: function(namespace){ |
| namespace = namespace||this.DEFAULT_NAMESPACE; |
| if(this.isValidKey(namespace) == false){ |
| throw new Error("Invalid namespace given: " + namespace); |
| } |
| |
| var rs = dojox.sql("SELECT key FROM " + this.TABLE_NAME |
| + " WHERE namespace = ?", |
| namespace); |
| |
| var results = []; |
| for(var i = 0; i < rs.length; i++){ |
| results.push(rs[i].key); |
| } |
| |
| return results; |
| }, |
| |
| clear: function(namespace){ |
| if(this.isValidKey(namespace) == false){ |
| throw new Error("Invalid namespace given: " + namespace); |
| } |
| namespace = namespace||this.DEFAULT_NAMESPACE; |
| |
| dojox.sql("DELETE FROM " + this.TABLE_NAME |
| + " WHERE namespace = ?", |
| namespace); |
| }, |
| |
| remove: function(key, namespace){ |
| namespace = namespace||this.DEFAULT_NAMESPACE; |
| |
| dojox.sql("DELETE FROM " + this.TABLE_NAME |
| + " WHERE namespace = ? AND" |
| + " key = ?", |
| namespace, |
| key); |
| }, |
| |
| putMultiple: function(keys, values, resultsHandler, namespace) { |
| if(this.isValidKeyArray(keys) === false |
| || ! values instanceof Array |
| || keys.length != values.length){ |
| throw new Error("Invalid arguments: keys = [" |
| + keys + "], values = [" + values + "]"); |
| } |
| |
| if(namespace == null || typeof namespace == "undefined"){ |
| namespace = dojox.storage.DEFAULT_NAMESPACE; |
| } |
| |
| if(this.isValidKey(namespace) == false){ |
| throw new Error("Invalid namespace given: " + namespace); |
| } |
| |
| this._statusHandler = resultsHandler; |
| |
| // try to store the value |
| try{ |
| dojox.sql.open(); |
| dojox.sql.db.execute("BEGIN TRANSACTION"); |
| var _stmt = "REPLACE INTO " + this.TABLE_NAME + " VALUES (?, ?, ?)"; |
| for(var i=0;i<keys.length;i++) { |
| // serialize the value; |
| // handle strings differently so they have better performance |
| var value = values[i]; |
| if(dojo.isString(value)){ |
| value = "string:" + value; |
| }else{ |
| value = dojo.toJson(value); |
| } |
| |
| dojox.sql.db.execute( _stmt, |
| [namespace, keys[i], value]); |
| } |
| dojox.sql.db.execute("COMMIT TRANSACTION"); |
| dojox.sql.close(); |
| }catch(e){ |
| // indicate we failed |
| console.debug("dojox.storage.GearsStorageProvider.putMultiple:", e); |
| if(resultsHandler){ |
| resultsHandler(this.FAILED, keys, e.toString()); |
| } |
| return; |
| } |
| |
| if(resultsHandler){ |
| resultsHandler(dojox.storage.SUCCESS, key, null); |
| } |
| }, |
| |
| getMultiple: function(keys, namespace){ |
| // TODO: Maybe use SELECT IN instead |
| |
| if(this.isValidKeyArray(keys) === false){ |
| throw new ("Invalid key array given: " + keys); |
| } |
| |
| if(namespace == null || typeof namespace == "undefined"){ |
| namespace = dojox.storage.DEFAULT_NAMESPACE; |
| } |
| |
| if(this.isValidKey(namespace) == false){ |
| throw new Error("Invalid namespace given: " + namespace); |
| } |
| |
| var _stmt = "SELECT * FROM " + this.TABLE_NAME + |
| " WHERE namespace = ? AND " + " key = ?"; |
| |
| var results = []; |
| for(var i=0;i<keys.length;i++){ |
| var result = dojox.sql( _stmt, namespace, keys[i]); |
| |
| if( ! result.length){ |
| results[i] = null; |
| }else{ |
| result = result[0].value; |
| |
| // destringify the content back into a |
| // real JavaScript object; |
| // handle strings differently so they have better performance |
| if(dojo.isString(result) && (/^string:/.test(result))){ |
| results[i] = result.substring("string:".length); |
| }else{ |
| results[i] = dojo.fromJson(result); |
| } |
| } |
| } |
| |
| return results; |
| }, |
| |
| removeMultiple: function(keys, namespace){ |
| namespace = namespace||this.DEFAULT_NAMESPACE; |
| |
| dojox.sql.open(); |
| dojox.sql.db.execute("BEGIN TRANSACTION"); |
| var _stmt = "DELETE FROM " + this.TABLE_NAME + " WHERE namespace = ? AND key = ?"; |
| |
| for(var i=0;i<keys.length;i++){ |
| dojox.sql.db.execute( _stmt, |
| [namespace, keys[i]]); |
| } |
| dojox.sql.db.execute("COMMIT TRANSACTION"); |
| dojox.sql.close(); |
| }, |
| |
| isPermanent: function(){ return true; }, |
| |
| getMaximumSize: function(){ return this.SIZE_NO_LIMIT; }, |
| |
| hasSettingsUI: function(){ return false; }, |
| |
| showSettingsUI: function(){ |
| throw new Error(this.declaredClass |
| + " does not support a storage settings user-interface"); |
| }, |
| |
| hideSettingsUI: function(){ |
| throw new Error(this.declaredClass |
| + " does not support a storage settings user-interface"); |
| } |
| }); |
| |
| // register the existence of our storage providers |
| dojox.storage.manager.register("dojox.storage.GearsStorageProvider", |
| new dojox.storage.GearsStorageProvider()); |
| |
| dojox.storage.manager.initialize(); |
| })(); |
| } |
| |
| } |
| |
| if(!dojo._hasResource["dojox.storage._common"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. |
| dojo._hasResource["dojox.storage._common"] = true; |
| dojo.provide("dojox.storage._common"); |
| |
| |
| |
| |
| |
| // FIXME: Find way to set isGears from offline.profile.js file; it didn't |
| // work for me |
| //dojo.requireIf(!dojo.isGears, "dojox.storage.FlashStorageProvider"); |
| //dojo.requireIf(!dojo.isGears, "dojox.storage.WhatWGStorageProvider"); |
| |
| // now that we are loaded and registered tell the storage manager to |
| // initialize itself |
| dojox.storage.manager.initialize(); |
| |
| } |
| |
| if(!dojo._hasResource["dojox.storage"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. |
| dojo._hasResource["dojox.storage"] = true; |
| dojo.provide("dojox.storage"); |
| |
| |
| } |
| |
| if(!dojo._hasResource["dojox.off.files"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. |
| dojo._hasResource["dojox.off.files"] = true; |
| dojo.provide("dojox.off.files"); |
| |
| // Author: Brad Neuberg, bkn3@columbia.edu, http://codinginparadise.org |
| |
| // summary: |
| // Helps maintain resources that should be |
| // available offline, such as CSS files. |
| // description: |
| // dojox.off.files makes it easy to indicate |
| // what resources should be available offline, |
| // such as CSS files, JavaScript, HTML, etc. |
| dojox.off.files = { |
| // versionURL: String |
| // An optional file, that if present, records the version |
| // of our bundle of files to make available offline. If this |
| // file is present, and we are not currently debugging, |
| // then we only refresh our offline files if the version has |
| // changed. |
| versionURL: "version.js", |
| |
| // listOfURLs: Array |
| // For advanced usage; most developers can ignore this. |
| // Our list of URLs that will be cached and made available |
| // offline. |
| listOfURLs: [], |
| |
| // refreshing: boolean |
| // For advanced usage; most developers can ignore this. |
| // Whether we are currently in the middle |
| // of refreshing our list of offline files. |
| refreshing: false, |
| |
| _cancelID: null, |
| |
| _error: false, |
| _errorMessages: [], |
| _currentFileIndex: 0, |
| _store: null, |
| _doSlurp: false, |
| |
| slurp: function(){ |
| // summary: |
| // Autoscans the page to find all resources to |
| // cache. This includes scripts, images, CSS, and hyperlinks |
| // to pages that are in the same scheme/port/host as this |
| // page. We also scan the embedded CSS of any stylesheets |
| // to find @import statements and url()'s. |
| // You should call this method from the top-level, outside of |
| // any functions and before the page loads: |
| // |
| // <script> |
| // |
| // |
| // |
| // |
| // |
| // // configure how we should work offline |
| // |
| // // set our application name |
| // dojox.off.ui.appName = "Moxie"; |
| // |
| // // automatically "slurp" the page and |
| // // capture the resources we need offline |
| // dojox.off.files.slurp(); |
| // |
| // // tell Dojo Offline we are ready for it to initialize itself now |
| // // that we have finished configuring it for our application |
| // dojox.off.initialize(); |
| // </script> |
| // |
| // Note that inline styles on elements are not handled (i.e. |
| // if you somehow have an inline style that uses a URL); |
| // object and embed tags are not scanned since their format |
| // differs based on type; and elements created by JavaScript |
| // after page load are not found. For these you must manually |
| // add them with a dojox.off.files.cache() method call. |
| |
| // just schedule the slurp once the page is loaded and |
| // Dojo Offline is ready to slurp; dojox.off will call |
| // our _slurp() method before indicating it is finished |
| // loading |
| this._doSlurp = true; |
| }, |
| |
| cache: function(urlOrList){ /* void */ |
| // summary: |
| // Caches a file or list of files to be available offline. This |
| // can either be a full URL, such as http://foobar.com/index.html, |
| // or a relative URL, such as ../index.html. This URL is not |
| // actually cached until dojox.off.sync.synchronize() is called. |
| // urlOrList: String or Array[] |
| // A URL of a file to cache or an Array of Strings of files to |
| // cache |
| |
| //console.debug("dojox.off.files.cache, urlOrList="+urlOrList); |
| |
| if(dojo.isString(urlOrList)){ |
| var url = this._trimAnchor(urlOrList+""); |
| if(!this.isAvailable(url)){ |
| this.listOfURLs.push(url); |
| } |
| }else if(urlOrList instanceof dojo._Url){ |
| var url = this._trimAnchor(urlOrList.uri); |
| if(!this.isAvailable(url)){ |
| this.listOfURLs.push(url); |
| } |
| }else{ |
| dojo.forEach(urlOrList, function(url){ |
| url = this._trimAnchor(url); |
| if(!this.isAvailable(url)){ |
| this.listOfURLs.push(url); |
| } |
| }, this); |
| } |
| }, |
| |
| printURLs: function(){ |
| // summary: |
| // A helper function that will dump and print out |
| // all of the URLs that are cached for offline |
| // availability. This can help with debugging if you |
| // are trying to make sure that all of your URLs are |
| // available offline |
| console.debug("The following URLs are cached for offline use:"); |
| dojo.forEach(this.listOfURLs, function(i){ |
| console.debug(i); |
| }); |
| }, |
| |
| remove: function(url){ /* void */ |
| // summary: |
| // Removes a URL from the list of files to cache. |
| // description: |
| // Removes a URL from the list of URLs to cache. Note that this |
| // does not actually remove the file from the offline cache; |
| // instead, it just prevents us from refreshing this file at a |
| // later time, so that it will naturally time out and be removed |
| // from the offline cache |
| // url: String |
| // The URL to remove |
| for(var i = 0; i < this.listOfURLs.length; i++){ |
| if(this.listOfURLs[i] == url){ |
| this.listOfURLs = this.listOfURLs.splice(i, 1); |
| break; |
| } |
| } |
| }, |
| |
| isAvailable: function(url){ /* boolean */ |
| // summary: |
| // Determines whether the given resource is available offline. |
| // url: String |
| // The URL to check |
| for(var i = 0; i < this.listOfURLs.length; i++){ |
| if(this.listOfURLs[i] == url){ |
| return true; |
| } |
| } |
| |
| return false; |
| }, |
| |
| refresh: function(callback){ /* void */ |
| //console.debug("dojox.off.files.refresh"); |
| // summary: |
| // For advanced usage; most developers can ignore this. |
| // Refreshes our list of offline resources, |
| // making them available offline. |
| // callback: Function |
| // A callback that receives two arguments: whether an error |
| // occurred, which is a boolean; and an array of error message strings |
| // with details on errors encountered. If no error occured then message is |
| // empty array with length 0. |
| try{ |
| if(djConfig.isDebug){ |
| this.printURLs(); |
| } |
| |
| this.refreshing = true; |
| |
| if(this.versionURL){ |
| this._getVersionInfo(function(oldVersion, newVersion, justDebugged){ |
| //console.warn("getVersionInfo, oldVersion="+oldVersion+", newVersion="+newVersion |
| // + ", justDebugged="+justDebugged+", isDebug="+djConfig.isDebug); |
| if(djConfig.isDebug || !newVersion || justDebugged |
| || !oldVersion || oldVersion != newVersion){ |
| console.warn("Refreshing offline file list"); |
| this._doRefresh(callback, newVersion); |
| }else{ |
| console.warn("No need to refresh offline file list"); |
| callback(false, []); |
| } |
| }); |
| }else{ |
| console.warn("Refreshing offline file list"); |
| this._doRefresh(callback); |
| } |
| }catch(e){ |
| this.refreshing = false; |
| |
| // can't refresh files -- core operation -- |
| // fail fast |
| dojox.off.coreOpFailed = true; |
| dojox.off.enabled = false; |
| dojox.off.onFrameworkEvent("coreOperationFailed"); |
| } |
| }, |
| |
| abortRefresh: function(){ |
| // summary: |
| // For advanced usage; most developers can ignore this. |
| // Aborts and cancels a refresh. |
| if(!this.refreshing){ |
| return; |
| } |
| |
| this._store.abortCapture(this._cancelID); |
| this.refreshing = false; |
| }, |
| |
| _slurp: function(){ |
| if(!this._doSlurp){ |
| return; |
| } |
| |
| var handleUrl = dojo.hitch(this, function(url){ |
| if(this._sameLocation(url)){ |
| this.cache(url); |
| } |
| }); |
| |
| handleUrl(window.location.href); |
| |
| dojo.query("script").forEach(function(i){ |
| try{ |
| handleUrl(i.getAttribute("src")); |
| }catch(exp){ |
| //console.debug("dojox.off.files.slurp 'script' error: " |
| // + exp.message||exp); |
| } |
| }); |
| |
| dojo.query("link").forEach(function(i){ |
| try{ |
| if(!i.getAttribute("rel") |
| || i.getAttribute("rel").toLowerCase() != "stylesheet"){ |
| return; |
| } |
| |
| handleUrl(i.getAttribute("href")); |
| }catch(exp){ |
| //console.debug("dojox.off.files.slurp 'link' error: " |
| // + exp.message||exp); |
| } |
| }); |
| |
| dojo.query("img").forEach(function(i){ |
| try{ |
| handleUrl(i.getAttribute("src")); |
| }catch(exp){ |
| //console.debug("dojox.off.files.slurp 'img' error: " |
| // + exp.message||exp); |
| } |
| }); |
| |
| dojo.query("a").forEach(function(i){ |
| try{ |
| handleUrl(i.getAttribute("href")); |
| }catch(exp){ |
| //console.debug("dojox.off.files.slurp 'a' error: " |
| // + exp.message||exp); |
| } |
| }); |
| |
| // FIXME: handle 'object' and 'embed' tag |
| |
| // parse our style sheets for inline URLs and imports |
| dojo.forEach(document.styleSheets, function(sheet){ |
| try{ |
| if(sheet.cssRules){ // Firefox |
| dojo.forEach(sheet.cssRules, function(rule){ |
| var text = rule.cssText; |
| if(text){ |
| var matches = text.match(/url\(\s*([^\) ]*)\s*\)/i); |
| if(!matches){ |
| return; |
| } |
| |
| for(var i = 1; i < matches.length; i++){ |
| handleUrl(matches[i]) |
| } |
| } |
| }); |
| }else if(sheet.cssText){ // IE |
| var matches; |
| var text = sheet.cssText.toString(); |
| // unfortunately, using RegExp.exec seems to be flakey |
| // for looping across multiple lines on IE using the |
| // global flag, so we have to simulate it |
| var lines = text.split(/\f|\r|\n/); |
| for(var i = 0; i < lines.length; i++){ |
| matches = lines[i].match(/url\(\s*([^\) ]*)\s*\)/i); |
| if(matches && matches.length){ |
| handleUrl(matches[1]); |
| } |
| } |
| } |
| }catch(exp){ |
| //console.debug("dojox.off.files.slurp stylesheet parse error: " |
| // + exp.message||exp); |
| } |
| }); |
| |
| //this.printURLs(); |
| }, |
| |
| _sameLocation: function(url){ |
| if(!url){ return false; } |
| |
| // filter out anchors |
| if(url.length && url.charAt(0) == "#"){ |
| return false; |
| } |
| |
| // FIXME: dojo._Url should be made public; |
| // it's functionality is very useful for |
| // parsing URLs correctly, which is hard to |
| // do right |
| url = new dojo._Url(url); |
| |
| // totally relative -- ../../someFile.html |
| if(!url.scheme && !url.port && !url.host){ |
| return true; |
| } |
| |
| // scheme relative with port specified -- brad.com:8080 |
| if(!url.scheme && url.host && url.port |
| && window.location.hostname == url.host |
| && window.location.port == url.port){ |
| return true; |
| } |
| |
| // scheme relative with no-port specified -- brad.com |
| if(!url.scheme && url.host && !url.port |
| && window.location.hostname == url.host |
| && window.location.port == 80){ |
| return true; |
| } |
| |
| // else we have everything |
| return window.location.protocol == (url.scheme + ":") |
| && window.location.hostname == url.host |
| && (window.location.port == url.port || !window.location.port && !url.port); |
| }, |
| |
| _trimAnchor: function(url){ |
| return url.replace(/\#.*$/, ""); |
| }, |
| |
| _doRefresh: function(callback, newVersion){ |
| // get our local server |
| var localServer; |
| try{ |
| localServer = google.gears.factory.create("beta.localserver", "1.0"); |
| }catch(exp){ |
| dojo.setObject("google.gears.denied", true); |
| dojox.off.onFrameworkEvent("coreOperationFailed"); |
| throw "Google Gears must be allowed to run"; |
| } |
| |
| var storeName = "dot_store_" |
| + window.location.href.replace(/[^0-9A-Za-z_]/g, "_"); |
| |
| // refresh everything by simply removing |
| // any older stores |
| localServer.removeStore(storeName); |
| |
| // open/create the resource store |
| localServer.openStore(storeName); |
| var store = localServer.createStore(storeName); |
| this._store = store; |
| |
| // add our list of files to capture |
| var self = this; |
| this._currentFileIndex = 0; |
| this._cancelID = store.capture(this.listOfURLs, function(url, success, captureId){ |
| //console.debug("store.capture, url="+url+", success="+success); |
| if(!success && self.refreshing){ |
| self._cancelID = null; |
| self.refreshing = false; |
| var errorMsgs = []; |
| errorMsgs.push("Unable to capture: " + url); |
| callback(true, errorMsgs); |
| return; |
| }else if(success){ |
| self._currentFileIndex++; |
| } |
| |
| if(success && self._currentFileIndex >= self.listOfURLs.length){ |
| self._cancelID = null; |
| self.refreshing = false; |
| if(newVersion){ |
| dojox.storage.put("oldVersion", newVersion, null, |
| dojox.off.STORAGE_NAMESPACE); |
| } |
| dojox.storage.put("justDebugged", djConfig.isDebug, null, |
| dojox.off.STORAGE_NAMESPACE); |
| callback(false, []); |
| } |
| }); |
| }, |
| |
| _getVersionInfo: function(callback){ |
| var justDebugged = dojox.storage.get("justDebugged", |
| dojox.off.STORAGE_NAMESPACE); |
| var oldVersion = dojox.storage.get("oldVersion", |
| dojox.off.STORAGE_NAMESPACE); |
| var newVersion = null; |
| |
| callback = dojo.hitch(this, callback); |
| |
| dojo.xhrGet({ |
| url: this.versionURL + "?browserbust=" + new Date().getTime(), |
| timeout: 5 * 1000, |
| handleAs: "javascript", |
| error: function(err){ |
| //console.warn("dojox.off.files._getVersionInfo, err=",err); |
| dojox.storage.remove("oldVersion", dojox.off.STORAGE_NAMESPACE); |
| dojox.storage.remove("justDebugged", dojox.off.STORAGE_NAMESPACE); |
| callback(oldVersion, newVersion, justDebugged); |
| }, |
| load: function(data){ |
| //console.warn("dojox.off.files._getVersionInfo, load=",data); |
| |
| // some servers incorrectly return 404's |
| // as a real page |
| if(data){ |
| newVersion = data; |
| } |
| |
| callback(oldVersion, newVersion, justDebugged); |
| } |
| }); |
| } |
| } |
| |
| } |
| |
| if(!dojo._hasResource["dojox.off.sync"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. |
| dojo._hasResource["dojox.off.sync"] = true; |
| dojo.provide("dojox.off.sync"); |
| |
| |
| |
| |
| |
| // Author: Brad Neuberg, bkn3@columbia.edu, http://codinginparadise.org |
| |
| // summary: |
| // Exposes syncing functionality to offline applications |
| dojo.mixin(dojox.off.sync, { |
| // isSyncing: boolean |
| // Whether we are in the middle of a syncing session. |
| isSyncing: false, |
| |
| // cancelled: boolean |
| // Whether we were cancelled during our last sync request or not. If |
| // we are cancelled, then successful will be false. |
| cancelled: false, |
| |
| // successful: boolean |
| // Whether the last sync was successful or not. If false, an error |
| // occurred. |
| successful: true, |
| |
| // details: String[] |
| // Details on the sync. If the sync was successful, this will carry |
| // any conflict or merging messages that might be available; if the |
| // sync was unsuccessful, this will have an error message. For both |
| // of these, this should be an array of Strings, where each string |
| // carries details on the sync. |
| // Example: |
| // dojox.off.sync.details = ["The document 'foobar' had conflicts - yours one", |
| // "The document 'hello world' was automatically merged"]; |
| details: [], |
| |
| // error: boolean |
| // Whether an error occurred during the syncing process. |
| error: false, |
| |
| // actions: dojox.off.sync.ActionLog |
| // Our ActionLog that we store offline actions into for later |
| // replaying when we go online |
| actions: null, |
| |
| // autoSync: boolean |
| // For advanced usage; most developers can ignore this. |
| // Whether we do automatically sync on page load or when we go online. |
| // If true we do, if false syncing must be manually initiated. |
| // Defaults to true. |
| autoSync: true, |
| |
| // summary: |
| // An event handler that is called during the syncing process with |
| // the state of syncing. It is important that you connect to this |
| // method and respond to certain sync events, especially the |
| // "download" event. |
| // description: |
| // This event handler is called during the syncing process. You can |
| // do a dojo.connect to receive sync feedback: |
| // |
| // dojo.connect(dojox.off.sync, "onSync", someFunc); |
| // |
| // You will receive one argument, which is the type of the event |
| // and which can have the following values. |
| // |
| // The most common two types that you need to care about are "download" |
| // and "finished", especially if you are using the default |
| // Dojo Offline UI widget that does the hard work of informing |
| // the user through the UI about what is occuring during syncing. |
| // |
| // If you receive the "download" event, you should make a network call |
| // to retrieve and store your data somehow for offline access. The |
| // "finished" event indicates that syncing is done. An example: |
| // |
| // dojo.connect(dojox.off.sync, "onSync", function(type){ |
| // if(type == "download"){ |
| // // make a network call to download some data |
| // // for use offline |
| // dojo.xhrGet({ |
| // url: "downloadData.php", |
| // handleAs: "javascript", |
| // error: function(err){ |
| // dojox.off.sync.finishedDownloading(false, "Can't download data"); |
| // }, |
| // load: function(data){ |
| // // store our data |
| // dojox.storage.put("myData", data); |
| // |
| // // indicate we are finished downloading |
| // dojox.off.sync.finishedDownloading(true); |
| // } |
| // }); |
| // }else if(type == "finished"){ |
| // // update UI somehow to indicate we are finished, |
| // // such as using the download data to change the |
| // // available data |
| // } |
| // }) |
| // |
| // Here is the full list of event types if you want to do deep |
| // customization, such as updating your UI to display the progress |
| // of syncing (note that the default Dojo Offline UI widget does |
| // this for you if you choose to pull that in). Most of these |
| // are only appropriate for advanced usage and can be safely |
| // ignored: |
| // |
| // * "start" |
| // syncing has started |
| // * "refreshFiles" |
| // syncing will begin refreshing |
| // our offline file cache |
| // * "upload" |
| // syncing will begin uploading |
| // any local data changes we have on the client. |
| // This event is fired before we fire |
| // the dojox.off.sync.actions.onReplay event for |
| // each action to replay; use it to completely |
| // over-ride the replaying behavior and prevent |
| // it entirely, perhaps rolling your own sync |
| // protocol if needed. |
| // * "download" |
| // syncing will begin downloading any new data that is |
| // needed into persistent storage. Applications are required to |
| // implement this themselves, storing the required data into |
| // persistent local storage using Dojo Storage. |
| // * "finished" |
| // syncing is finished; this |
| // will be called whether an error ocurred or not; check |
| // dojox.off.sync.successful and dojox.off.sync.error for sync details |
| // * "cancel" |
| // Fired when canceling has been initiated; canceling will be |
| // attempted, followed by the sync event "finished". |
| onSync: function(/* String */ type){}, |
| |
| synchronize: function(){ /* void */ |
| // summary: Starts synchronizing |
| |
| //dojo.debug("synchronize"); |
| if(this.isSyncing || dojox.off.goingOnline || (!dojox.off.isOnline)){ |
| return; |
| } |
| |
| this.isSyncing = true; |
| this.successful = false; |
| this.details = []; |
| this.cancelled = false; |
| |
| this.start(); |
| }, |
| |
| cancel: function(){ /* void */ |
| // summary: |
| // Attempts to cancel this sync session |
| |
| if(!this.isSyncing){ return; } |
| |
| this.cancelled = true; |
| if(dojox.off.files.refreshing){ |
| dojox.off.files.abortRefresh(); |
| } |
| |
| this.onSync("cancel"); |
| }, |
| |
| finishedDownloading: function(successful /* boolean? */, |
| errorMessage /* String? */){ |
| // summary: |
| // Applications call this method from their |
| // after getting a "download" event in |
| // dojox.off.sync.onSync to signal that |
| // they are finished downloading any data |
| // that should be available offline |
| // successful: boolean? |
| // Whether our downloading was successful or not. |
| // If not present, defaults to true. |
| // errorMessage: String? |
| // If unsuccessful, a message explaining why |
| if(typeof successful == "undefined"){ |
| successful = true; |
| } |
| |
| if(!successful){ |
| this.successful = false; |
| this.details.push(errorMessage); |
| this.error = true; |
| } |
| |
| this.finished(); |
| }, |
| |
| start: function(){ /* void */ |
| // summary: |
| // For advanced usage; most developers can ignore this. |
| // Called at the start of the syncing process. Advanced |
| // developers can over-ride this method to use their |
| // own sync mechanism to start syncing. |
| |
| if(this.cancelled){ |
| this.finished(); |
| return; |
| } |
| this.onSync("start"); |
| this.refreshFiles(); |
| }, |
| |
| refreshFiles: function(){ /* void */ |
| // summary: |
| // For advanced usage; most developers can ignore this. |
| // Called when we are going to refresh our list |
| // of offline files during syncing. Advanced developers |
| // can over-ride this method to do some advanced magic related to |
| // refreshing files. |
| |
| //dojo.debug("refreshFiles"); |
| if(this.cancelled){ |
| this.finished(); |
| return; |
| } |
| |
| this.onSync("refreshFiles"); |
| |
| dojox.off.files.refresh(dojo.hitch(this, function(error, errorMessages){ |
| if(error){ |
| this.error = true; |
| this.successful = false; |
| for(var i = 0; i < errorMessages.length; i++){ |
| this.details.push(errorMessages[i]); |
| } |
| |
| // even if we get an error while syncing files, |
| // keep syncing so we can upload and download |
| // data |
| } |
| |
| this.upload(); |
| })); |
| }, |
| |
| upload: function(){ /* void */ |
| // summary: |
| // For advanced usage; most developers can ignore this. |
| // Called when syncing wants to upload data. Advanced |
| // developers can over-ride this method to completely |
| // throw away the Action Log and replaying system |
| // and roll their own advanced sync mechanism if needed. |
| |
| if(this.cancelled){ |
| this.finished(); |
| return; |
| } |
| |
| this.onSync("upload"); |
| |
| // when we are done uploading start downloading |
| dojo.connect(this.actions, "onReplayFinished", this, this.download); |
| |
| // replay the actions log |
| this.actions.replay(); |
| }, |
| |
| download: function(){ /* void */ |
| // summary: |
| // For advanced usage; most developers can ignore this. |
| // Called when syncing wants to download data. Advanced |
| // developers can over-ride this method to use their |
| // own sync mechanism. |
| |
| if(this.cancelled){ |
| this.finished(); |
| return; |
| } |
| |
| // apps should respond to the "download" |
| // event to download their data; when done |
| // they must call dojox.off.sync.finishedDownloading() |
| this.onSync("download"); |
| }, |
| |
| finished: function(){ /* void */ |
| // summary: |
| // For advanced usage; most developers can ignore this. |
| // Called when syncing is finished. Advanced |
| // developers can over-ride this method to clean |
| // up after finishing their own sync |
| // mechanism they might have rolled. |
| this.isSyncing = false; |
| |
| this.successful = (!this.cancelled && !this.error); |
| |
| this.onSync("finished"); |
| }, |
| |
| _save: function(callback){ |
| this.actions._save(function(){ |
| callback(); |
| }); |
| }, |
| |
| _load: function(callback){ |
| this.actions._load(function(){ |
| callback(); |
| }); |
| } |
| }); |
| |
| |
| // summary: |
| // A class that records actions taken by a user when they are offline, |
| // suitable for replaying when the network reappears. |
| // description: |
| // The basic idea behind this method is to record user actions that would |
| // normally have to contact a server into an action log when we are |
| // offline, so that later when we are online we can simply replay this log |
| // in the order user actions happened so that they can be executed against |
| // the server, causing synchronization to happen. |
| // |
| // When we replay, for each of the actions that were added, we call a |
| // method named onReplay that applications should connect to and |
| // which will be called over and over for each of our actions -- |
| // applications should take the offline action |
| // information and use it to talk to a server to have this action |
| // actually happen online, 'syncing' themselves with the server. |
| // |
| // For example, if the action was "update" with the item that was updated, we |
| // might call some RESTian server API that exists for updating an item in |
| // our application. The server could either then do sophisticated merging |
| // and conflict resolution on the server side, for example, allowing you |
| // to pop up a custom merge UI, or could do automatic merging or nothing |
| // of the sort. When you are finished with this particular action, your |
| // application is then required to call continueReplay() on the actionLog object |
| // passed to onReplay() to continue replaying the action log, or haltReplay() |
| // with the reason for halting to completely stop the syncing/replaying |
| // process. |
| // |
| // For example, imagine that we have a web application that allows us to add |
| // contacts. If we are offline, and we update a contact, we would add an action; |
| // imagine that the user has to click an Update button after changing the values |
| // for a given contact: |
| // |
| // dojox.off.whenOffline(dojo.byId("updateButton"), "onclick", function(evt){ |
| // // get the updated customer values |
| // var customer = getCustomerValues(); |
| // |
| // // we are offline -- just record this action |
| // var action = {name: "update", customer: customer}; |
| // dojox.off.sync.actions.add(action) |
| // |
| // // persist this customer data into local storage as well |
| // dojox.storage.put(customer.name, customer); |
| // }) |
| // |
| // Then, when we go back online, the dojox.off.sync.actions.onReplay event |
| // will fire over and over, once for each action that was recorded while offline: |
| // |
| // dojo.connect(dojox.off.sync.actions, "onReplay", function(action, actionLog){ |
| // // called once for each action we added while offline, in the order |
| // // they were added |
| // if(action.name == "update"){ |
| // var customer = action.customer; |
| // |
| // // call some network service to update this customer |
| // dojo.xhrPost({ |
| // url: "updateCustomer.php", |
| // content: {customer: dojo.toJson(customer)}, |
| // error: function(err){ |
| // actionLog.haltReplay(err); |
| // }, |
| // load: function(data){ |
| // actionLog.continueReplay(); |
| // } |
| // }) |
| // } |
| // }) |
| // |
| // Note that the actions log is always automatically persisted locally while using it, so |
| // that if the user closes the browser or it crashes the actions will safely be stored |
| // for later replaying. |
| dojo.declare("dojox.off.sync.ActionLog", null, { |
| // entries: Array |
| // An array of our action entries, where each one is simply a custom |
| // object literal that were passed to add() when this action entry |
| // was added. |
| entries: [], |
| |
| // reasonHalted: String |
| // If we halted, the reason why |
| reasonHalted: null, |
| |
| // isReplaying: boolean |
| // If true, we are in the middle of replaying a command log; if false, |
| // then we are not |
| isReplaying: false, |
| |
| // autoSave: boolean |
| // Whether we automatically save the action log after each call to |
| // add(); defaults to true. For applications that are rapidly adding |
| // many action log entries in a short period of time, it can be |
| // useful to set this to false and simply call save() yourself when |
| // you are ready to persist your command log -- otherwise performance |
| // could be slow as the default action is to attempt to persist the |
| // actions log constantly with calls to add(). |
| autoSave: true, |
| |
| add: function(action /* Object */){ /* void */ |
| // summary: |
| // Adds an action to our action log |
| // description: |
| // This method will add an action to our |
| // action log, later to be replayed when we |
| // go from offline to online. 'action' |
| // will be available when this action is |
| // replayed and will be passed to onReplay. |
| // |
| // Example usage: |
| // |
| // dojox.off.sync.log.add({actionName: "create", itemType: "document", |
| // {title: "Message", content: "Hello World"}}); |
| // |
| // The object literal is simply a custom object appropriate |
| // for our application -- it can be anything that preserves the state |
| // of a user action that will be executed when we go back online |
| // and replay this log. In the above example, |
| // "create" is the name of this action; "documents" is the |
| // type of item this command is operating on, such as documents, contacts, |
| // tasks, etc.; and the final argument is the document that was created. |
| |
| if(this.isReplaying){ |
| throw "Programming error: you can not call " |
| + "dojox.off.sync.actions.add() while " |
| + "we are replaying an action log"; |
| } |
| |
| this.entries.push(action); |
| |
| // save our updated state into persistent |
| // storage |
| if(this.autoSave){ |
| this._save(); |
| } |
| }, |
| |
| onReplay: function(action /* Object */, |
| actionLog /* dojox.off.sync.ActionLog */){ /* void */ |
| // summary: |
| // Called when we replay our log, for each of our action |
| // entries. |
| // action: Object |
| // A custom object literal representing an action for this |
| // application, such as |
| // {actionName: "create", item: {title: "message", content: "hello world"}} |
| // actionLog: dojox.off.sync.ActionLog |
| // A reference to the dojox.off.sync.actions log so that developers |
| // can easily call actionLog.continueReplay() or actionLog.haltReplay(). |
| // description: |
| // This callback should be connected to by applications so that |
| // they can sync themselves when we go back online: |
| // |
| // dojo.connect(dojox.off.sync.actions, "onReplay", function(action, actionLog){ |
| // // do something |
| // }) |
| // |
| // When we replay our action log, this callback is called for each |
| // of our action entries in the order they were added. The |
| // 'action' entry that was passed to add() for this action will |
| // also be passed in to onReplay, so that applications can use this information |
| // to do their syncing, such as contacting a server web-service |
| // to create a new item, for example. |
| // |
| // Inside the method you connected to onReplay, you should either call |
| // actionLog.haltReplay(reason) if an error occurred and you would like to halt |
| // action replaying or actionLog.continueReplay() to have the action log |
| // continue replaying its log and proceed to the next action; |
| // the reason you must call these is the action you execute inside of |
| // onAction will probably be asynchronous, since it will be talking on |
| // the network, and you should call one of these two methods based on |
| // the result of your network call. |
| }, |
| |
| length: function(){ /* Number */ |
| // summary: |
| // Returns the length of this |
| // action log |
| return this.entries.length; |
| }, |
| |
| haltReplay: function(reason /* String */){ /* void */ |
| // summary: Halts replaying this command log. |
| // reason: String |
| // The reason we halted. |
| // description: |
| // This method is called as we are replaying an action log; it |
| // can be called from dojox.off.sync.actions.onReplay, for |
| // example, for an application to indicate an error occurred |
| // while replaying this action, halting further processing of |
| // the action log. Note that any action log entries that |
| // were processed before have their effects retained (i.e. |
| // they are not rolled back), while the action entry that was |
| // halted stays in our list of actions to later be replayed. |
| if(!this.isReplaying){ |
| return; |
| } |
| |
| if(reason){ |
| this.reasonHalted = reason.toString(); |
| } |
| |
| // save the state of our action log, then |
| // tell anyone who is interested that we are |
| // done when we are finished saving |
| if(this.autoSave){ |
| var self = this; |
| this._save(function(){ |
| self.isReplaying = false; |
| self.onReplayFinished(); |
| }); |
| }else{ |
| this.isReplaying = false; |
| this.onReplayFinished(); |
| } |
| }, |
| |
| continueReplay: function(){ /* void */ |
| // summary: |
| // Indicates that we should continue processing out list of |
| // actions. |
| // description: |
| // This method is called by applications that have overridden |
| // dojox.off.sync.actions.onReplay() to continue replaying our |
| // action log after the application has finished handling the |
| // current action. |
| if(!this.isReplaying){ |
| return; |
| } |
| |
| // shift off the old action we just ran |
| this.entries.shift(); |
| |
| // are we done? |
| if(!this.entries.length){ |
| // save the state of our action log, then |
| // tell anyone who is interested that we are |
| // done when we are finished saving |
| if(this.autoSave){ |
| var self = this; |
| this._save(function(){ |
| self.isReplaying = false; |
| self.onReplayFinished(); |
| }); |
| return; |
| }else{ |
| this.isReplaying = false; |
| this.onReplayFinished(); |
| return; |
| } |
| } |
| |
| // get the next action |
| var nextAction = this.entries[0]; |
| this.onReplay(nextAction, this); |
| }, |
| |
| clear: function(){ /* void */ |
| // summary: |
| // Completely clears this action log of its entries |
| |
| if(this.isReplaying){ |
| return; |
| } |
| |
| this.entries = []; |
| |
| // save our updated state into persistent |
| // storage |
| if(this.autoSave){ |
| this._save(); |
| } |
| }, |
| |
| replay: function(){ /* void */ |
| // summary: |
| // For advanced usage; most developers can ignore this. |
| // Replays all of the commands that have been |
| // cached in this command log when we go back online; |
| // onCommand will be called for each command we have |
| |
| if(this.isReplaying){ |
| return; |
| } |
| |
| this.reasonHalted = null; |
| |
| if(!this.entries.length){ |
| this.onReplayFinished(); |
| return; |
| } |
| |
| this.isReplaying = true; |
| |
| var nextAction = this.entries[0]; |
| this.onReplay(nextAction, this); |
| }, |
| |
| // onReplayFinished: Function |
| // For advanced usage; most developers can ignore this. |
| // Called when we are finished replaying our commands; |
| // called if we have successfully exhausted all of our |
| // commands, or if an error occurred during replaying. |
| // The default implementation simply continues the |
| // synchronization process. Connect to this to register |
| // for the event: |
| // |
| // dojo.connect(dojox.off.sync.actions, "onReplayFinished", |
| // someFunc) |
| onReplayFinished: function(){ |
| }, |
| |
| toString: function(){ |
| var results = ""; |
| results += "["; |
| |
| for(var i = 0; i < this.entries.length; i++){ |
| results += "{"; |
| for(var j in this.entries[i]){ |
| results += j + ": \"" + this.entries[i][j] + "\""; |
| results += ", "; |
| } |
| results += "}, "; |
| } |
| |
| results += "]"; |
| |
| return results; |
| }, |
| |
| _save: function(callback){ |
| if(!callback){ |
| callback = function(){}; |
| } |
| |
| try{ |
| var self = this; |
| var resultsHandler = function(status, key, message){ |
| //console.debug("resultsHandler, status="+status+", key="+key+", message="+message); |
| if(status == dojox.storage.FAILED){ |
| dojox.off.onFrameworkEvent("save", |
| {status: dojox.storage.FAILED, |
| isCoreSave: true, |
| key: key, |
| value: message, |
| namespace: dojox.off.STORAGE_NAMESPACE}); |
| callback(); |
| }else if(status == dojox.storage.SUCCESS){ |
| callback(); |
| } |
| }; |
| |
| dojox.storage.put("actionlog", this.entries, resultsHandler, |
| dojox.off.STORAGE_NAMESPACE); |
| }catch(exp){ |
| console.debug("dojox.off.sync._save: " + exp.message||exp); |
| dojox.off.onFrameworkEvent("save", |
| {status: dojox.storage.FAILED, |
| isCoreSave: true, |
| key: "actionlog", |
| value: this.entries, |
| namespace: dojox.off.STORAGE_NAMESPACE}); |
| callback(); |
| } |
| }, |
| |
| _load: function(callback){ |
| var entries = dojox.storage.get("actionlog", dojox.off.STORAGE_NAMESPACE); |
| |
| if(!entries){ |
| entries = []; |
| } |
| |
| this.entries = entries; |
| |
| callback(); |
| } |
| } |
| ); |
| |
| dojox.off.sync.actions = new dojox.off.sync.ActionLog(); |
| |
| } |
| |
| if(!dojo._hasResource["dojox.off._common"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. |
| dojo._hasResource["dojox.off._common"] = true; |
| dojo.provide("dojox.off._common"); |
| |
| |
| |
| |
| |
| // Author: Brad Neuberg, bkn3@columbia.edu, http://codinginparadise.org |
| |
| // summary: |
| // dojox.off is the main object for offline applications. |
| dojo.mixin(dojox.off, { |
| // isOnline: boolean |
| // true if we are online, false if not |
| isOnline: false, |
| |
| // NET_CHECK: int |
| // For advanced usage; most developers can ignore this. |
| // Time in seconds on how often we should check the status of the |
| // network with an automatic background timer. The current default |
| // is 5 seconds. |
| NET_CHECK: 5, |
| |
| // STORAGE_NAMESPACE: String |
| // For advanced usage; most developers can ignore this. |
| // The namespace we use to save core data into Dojo Storage. |
| STORAGE_NAMESPACE: "_dot", |
| |
| // enabled: boolean |
| // For advanced usage; most developers can ignore this. |
| // Whether offline ability is enabled or not. Defaults to true. |
| enabled: true, |
| |
| // availabilityURL: String |
| // For advanced usage; most developers can ignore this. |
| // The URL to check for site availability. We do a GET request on |
| // this URL to check for site availability. By default we check for a |
| // simple text file in src/off/network_check.txt that has one value |
| // it, the value '1'. |
| availabilityURL: dojo.moduleUrl("dojox", "off/network_check.txt"), |
| |
| // goingOnline: boolean |
| // For advanced usage; most developers can ignore this. |
| // True if we are attempting to go online, false otherwise |
| goingOnline: false, |
| |
| // coreOpFailed: boolean |
| // For advanced usage; most developers can ignore this. |
| // A flag set by the Dojo Offline framework that indicates that the |
| // user denied some operation that required the offline cache or an |
| // operation failed in some critical way that was unrecoverable. For |
| // example, if the offline cache is Google Gears and we try to get a |
| // Gears database, a popup window appears asking the user whether they |
| // will approve or deny this request. If the user denies the request, |
| // and we are doing some operation that is core to Dojo Offline, then |
| // we set this flag to 'true'. This flag causes a 'fail fast' |
| // condition, turning off offline ability. |
| coreOpFailed: false, |
| |
| // doNetChecking: boolean |
| // For advanced usage; most developers can ignore this. |
| // Whether to have a timing interval in the background doing automatic |
| // network checks at regular intervals; the length of time between |
| // checks is controlled by dojox.off.NET_CHECK. Defaults to true. |
| doNetChecking: true, |
| |
| // hasOfflineCache: boolean |
| // For advanced usage; most developers can ignore this. |
| // Determines if an offline cache is available or installed; an |
| // offline cache is a facility that can truely cache offline |
| // resources, such as JavaScript, HTML, etc. in such a way that they |
| // won't be removed from the cache inappropriately like a browser |
| // cache would. If this is false then an offline cache will be |
| // installed. Only Google Gears is currently supported as an offline |
| // cache. Future possible offline caches include Firefox 3. |
| hasOfflineCache: null, |
| |
| // browserRestart: boolean |
| // For advanced usage; most developers can ignore this. |
| // If true, the browser must be restarted to register the existence of |
| // a new host added offline (from a call to addHostOffline); if false, |
| // then nothing is needed. |
| browserRestart: false, |
| |
| _STORAGE_APP_NAME: window.location.href.replace(/[^0-9A-Za-z_]/g, "_"), |
| |
| _initializeCalled: false, |
| _storageLoaded: false, |
| _pageLoaded: false, |
| |
| onLoad: function(){ |
| // summary: |
| // Called when Dojo Offline can be used. |
| // description: |
| // Do a dojo.connect to this to know when you can |
| // start using Dojo Offline: |
| // dojo.connect(dojox.off, "onLoad", myFunc); |
| }, |
| |
| onNetwork: function(type){ |
| // summary: |
| // Called when our on- or offline- status changes. |
| // description: |
| // If we move online, then this method is called with the |
| // value "online". If we move offline, then this method is |
| // called with the value "offline". You can connect to this |
| // method to do add your own behavior: |
| // |
| // dojo.connect(dojox.off, "onNetwork", someFunc) |
| // |
| // Note that if you are using the default Dojo Offline UI |
| // widget that most of the on- and off-line notification |
| // and syncing is automatically handled and provided to the |
| // user. |
| // type: String |
| // Either "online" or "offline". |
| }, |
| |
| initialize: function(){ /* void */ |
| // summary: |
| // Called when a Dojo Offline-enabled application is finished |
| // configuring Dojo Offline, and is ready for Dojo Offline to |
| // initialize itself. |
| // description: |
| // When an application has finished filling out the variables Dojo |
| // Offline needs to work, such as dojox.off.ui.appName, it must |
| // this method to tell Dojo Offline to initialize itself. |
| |
| // Note: |
| // This method is needed for a rare edge case. In some conditions, |
| // especially if we are dealing with a compressed Dojo build, the |
| // entire Dojo Offline subsystem might initialize itself and be |
| // running even before the JavaScript for an application has had a |
| // chance to run and configure Dojo Offline, causing Dojo Offline |
| // to have incorrect initialization parameters for a given app, |
| // such as no value for dojox.off.ui.appName. This method is |
| // provided to prevent this scenario, to slightly 'slow down' Dojo |
| // Offline so it can be configured before running off and doing |
| // its thing. |
| |
| //console.debug("dojox.off.initialize"); |
| this._initializeCalled = true; |
| |
| if(this._storageLoaded && this._pageLoaded){ |
| this._onLoad(); |
| } |
| }, |
| |
| goOffline: function(){ /* void */ |
| // summary: |
| // For advanced usage; most developers can ignore this. |
| // Manually goes offline, away from the network. |
| if((dojox.off.sync.isSyncing)||(this.goingOnline)){ return; } |
| |
| this.goingOnline = false; |
| this.isOnline = false; |
| }, |
| |
| goOnline: function(callback){ /* void */ |
| // summary: |
| // For advanced usage; most developers can ignore this. |
| // Attempts to go online. |
| // description: |
| // Attempts to go online, making sure this web application's web |
| // site is available. 'callback' is called asychronously with the |
| // result of whether we were able to go online or not. |
| // callback: Function |
| // An optional callback function that will receive one argument: |
| // whether the site is available or not and is boolean. If this |
| // function is not present we call dojo.xoff.onOnline instead if |
| // we are able to go online. |
| |
| //console.debug("goOnline"); |
| |
| if(dojox.off.sync.isSyncing || dojox.off.goingOnline){ |
| return; |
| } |
| |
| this.goingOnline = true; |
| this.isOnline = false; |
| |
| // see if can reach our web application's web site |
| this._isSiteAvailable(callback); |
| }, |
| |
| onFrameworkEvent: function(type /* String */, saveData /* Object? */){ |
| // summary: |
| // For advanced usage; most developers can ignore this. |
| // A standard event handler that can be attached to to find out |
| // about low-level framework events. Most developers will not need to |
| // attach to this method; it is meant for low-level information |
| // that can be useful for updating offline user-interfaces in |
| // exceptional circumstances. The default Dojo Offline UI |
| // widget takes care of most of these situations. |
| // type: String |
| // The type of the event: |
| // |
| // * "offlineCacheInstalled" |
| // An event that is fired when a user |
| // has installed an offline cache after the page has been loaded. |
| // If a user didn't have an offline cache when the page loaded, a |
| // UI of some kind might have prompted them to download one. This |
| // method is called if they have downloaded and installed an |
| // offline cache so a UI can reinitialize itself to begin using |
| // this offline cache. |
| // * "coreOperationFailed" |
| // Fired when a core operation during interaction with the |
| // offline cache is denied by the user. Some offline caches, such |
| // as Google Gears, prompts the user to approve or deny caching |
| // files, using the database, and more. If the user denies a |
| // request that is core to Dojo Offline's operation, we set |
| // dojox.off.coreOpFailed to true and call this method for |
| // listeners that would like to respond some how to Dojo Offline |
| // 'failing fast'. |
| // * "save" |
| // Called whenever the framework saves data into persistent |
| // storage. This could be useful for providing save feedback |
| // or providing appropriate error feedback if saving fails |
| // due to a user not allowing the save to occur |
| // saveData: Object? |
| // If the type was 'save', then a saveData object is provided with |
| // further save information. This object has the following properties: |
| // |
| // * status - dojox.storage.SUCCESS, dojox.storage.PENDING, dojox.storage.FAILED |
| // Whether the save succeeded, whether it is pending based on a UI |
| // dialog asking the user for permission, or whether it failed. |
| // |
| // * isCoreSave - boolean |
| // If true, then this save was for a core piece of data necessary |
| // for the functioning of Dojo Offline. If false, then it is a |
| // piece of normal data being saved for offline access. Dojo |
| // Offline will 'fail fast' if some core piece of data could not |
| // be saved, automatically setting dojox.off.coreOpFailed to |
| // 'true' and dojox.off.enabled to 'false'. |
| // |
| // * key - String |
| // The key that we are attempting to persist |
| // |
| // * value - Object |
| // The object we are trying to persist |
| // |
| // * namespace - String |
| // The Dojo Storage namespace we are saving this key/value pair |
| // into, such as "default", "Documents", "Contacts", etc. |
| // Optional. |
| if(type == "save"){ |
| if(saveData.isCoreSave && (saveData.status == dojox.storage.FAILED)){ |
| dojox.off.coreOpFailed = true; |
| dojox.off.enabled = false; |
| |
| // FIXME: Stop the background network thread |
| dojox.off.onFrameworkEvent("coreOperationFailed"); |
| } |
| }else if(type == "coreOperationFailed"){ |
| dojox.off.coreOpFailed = true; |
| dojox.off.enabled = false; |
| // FIXME: Stop the background network thread |
| } |
| }, |
| |
| _checkOfflineCacheAvailable: function(callback){ |
| // is a true, offline cache running on this machine? |
| this.hasOfflineCache = dojo.isGears; |
| |
| callback(); |
| }, |
| |
| _onLoad: function(){ |
| //console.debug("dojox.off._onLoad"); |
| |
| // both local storage and the page are finished loading |
| |
| // cache the Dojo JavaScript -- just use the default dojo.js |
| // name for the most common scenario |
| // FIXME: TEST: Make sure syncing doesn't break if dojo.js |
| // can't be found, or report an error to developer |
| dojox.off.files.cache(dojo.moduleUrl("dojo", "dojo.js")); |
| |
| // pull in the files needed by Dojo |
| this._cacheDojoResources(); |
| |
| // FIXME: need to pull in the firebug lite files here! |
| // workaround or else we will get an error on page load |
| // from Dojo that it can't find 'console.debug' for optimized builds |
| // dojox.off.files.cache(djConfig.baseRelativePath + "src/debug.js"); |
| |
| // make sure that resources needed by all of our underlying |
| // Dojo Storage storage providers will be available |
| // offline |
| dojox.off.files.cache(dojox.storage.manager.getResourceList()); |
| |
| // slurp the page if the end-developer wants that |
| dojox.off.files._slurp(); |
| |
| // see if we have an offline cache; when done, move |
| // on to the rest of our startup tasks |
| this._checkOfflineCacheAvailable(dojo.hitch(this, "_onOfflineCacheChecked")); |
| }, |
| |
| _onOfflineCacheChecked: function(){ |
| // this method is part of our _onLoad series of startup tasks |
| |
| // if we have an offline cache, see if we have been added to the |
| // list of available offline web apps yet |
| if(this.hasOfflineCache && this.enabled){ |
| // load framework data; when we are finished, continue |
| // initializing ourselves |
| this._load(dojo.hitch(this, "_finishStartingUp")); |
| }else if(this.hasOfflineCache && !this.enabled){ |
| // we have an offline cache, but it is disabled for some reason |
| // perhaps due to the user denying a core operation |
| this._finishStartingUp(); |
| }else{ |
| this._keepCheckingUntilInstalled(); |
| } |
| }, |
| |
| _keepCheckingUntilInstalled: function(){ |
| // this method is part of our _onLoad series of startup tasks |
| |
| // kick off a background interval that keeps |
| // checking to see if an offline cache has been |
| // installed since this page loaded |
| |
| // FIXME: Gears: See if we are installed somehow after the |
| // page has been loaded |
| |
| // now continue starting up |
| this._finishStartingUp(); |
| }, |
| |
| _finishStartingUp: function(){ |
| //console.debug("dojox.off._finishStartingUp"); |
| |
| // this method is part of our _onLoad series of startup tasks |
| |
| if(!this.hasOfflineCache){ |
| this.onLoad(); |
| }else if(this.enabled){ |
| // kick off a thread to check network status on |
| // a regular basis |
| this._startNetworkThread(); |
| |
| // try to go online |
| this.goOnline(dojo.hitch(this, function(){ |
| //console.debug("Finished trying to go online"); |
| // indicate we are ready to be used |
| dojox.off.onLoad(); |
| })); |
| }else{ // we are disabled or a core operation failed |
| if(this.coreOpFailed){ |
| this.onFrameworkEvent("coreOperationFailed"); |
| }else{ |
| this.onLoad(); |
| } |
| } |
| }, |
| |
| _onPageLoad: function(){ |
| //console.debug("dojox.off._onPageLoad"); |
| this._pageLoaded = true; |
| |
| if(this._storageLoaded && this._initializeCalled){ |
| this._onLoad(); |
| } |
| }, |
| |
| _onStorageLoad: function(){ |
| //console.debug("dojox.off._onStorageLoad"); |
| this._storageLoaded = true; |
| |
| // were we able to initialize storage? if |
| // not, then this is a core operation, and |
| // let's indicate we will need to fail fast |
| if(!dojox.storage.manager.isAvailable() |
| && dojox.storage.manager.isInitialized()){ |
| this.coreOpFailed = true; |
| this.enabled = false; |
| } |
| |
| if(this._pageLoaded && this._initializeCalled){ |
| this._onLoad(); |
| } |
| }, |
| |
| _isSiteAvailable: function(callback){ |
| // summary: |
| // Determines if our web application's website is available. |
| // description: |
| // This method will asychronously determine if our web |
| // application's web site is available, which is a good proxy for |
| // network availability. The URL dojox.off.availabilityURL is |
| // used, which defaults to this site's domain name (ex: |
| // foobar.com). We check for dojox.off.AVAILABILITY_TIMEOUT (in |
| // seconds) and abort after that |
| // callback: Function |
| // An optional callback function that will receive one argument: |
| // whether the site is available or not and is boolean. If this |
| // function is not present we call dojox.off.onNetwork instead if we |
| // are able to go online. |
| dojo.xhrGet({ |
| url: this._getAvailabilityURL(), |
| handleAs: "text", |
| timeout: this.NET_CHECK * 1000, |
| error: dojo.hitch(this, function(err){ |
| //console.debug("dojox.off._isSiteAvailable.error: " + err); |
| this.goingOnline = false; |
| this.isOnline = false; |
| if(callback){ callback(false); } |
| }), |
| load: dojo.hitch(this, function(data){ |
| //console.debug("dojox.off._isSiteAvailable.load, data="+data); |
| this.goingOnline = false; |
| this.isOnline = true; |
| |
| if(callback){ callback(true); |
| }else{ this.onNetwork("online"); } |
| }) |
| }); |
| }, |
| |
| _startNetworkThread: function(){ |
| //console.debug("startNetworkThread"); |
| |
| // kick off a thread that does periodic |
| // checks on the status of the network |
| if(!this.doNetChecking){ |
| return; |
| } |
| |
| window.setInterval(dojo.hitch(this, function(){ |
| var d = dojo.xhrGet({ |
| url: this._getAvailabilityURL(), |
| handleAs: "text", |
| timeout: this.NET_CHECK * 1000, |
| error: dojo.hitch(this, |
| function(err){ |
| if(this.isOnline){ |
| this.isOnline = false; |
| |
| // FIXME: xhrGet() is not |
| // correctly calling abort |
| // on the XHR object when |
| // it times out; fix inside |
| // there instead of externally |
| // here |
| try{ |
| if(typeof d.ioArgs.xhr.abort == "function"){ |
| d.ioArgs.xhr.abort(); |
| } |
| }catch(e){} |
| |
| // if things fell in the middle of syncing, |
| // stop syncing |
| dojox.off.sync.isSyncing = false; |
| |
| this.onNetwork("offline"); |
| } |
| } |
| ), |
| load: dojo.hitch(this, |
| function(data){ |
| if(!this.isOnline){ |
| this.isOnline = true; |
| this.onNetwork("online"); |
| } |
| } |
| ) |
| }); |
| |
| }), this.NET_CHECK * 1000); |
| }, |
| |
| _getAvailabilityURL: function(){ |
| var url = this.availabilityURL.toString(); |
| |
| // bust the browser's cache to make sure we are really talking to |
| // the server |
| if(url.indexOf("?") == -1){ |
| url += "?"; |
| }else{ |
| url += "&"; |
| } |
| url += "browserbust=" + new Date().getTime(); |
| |
| return url; |
| }, |
| |
| _onOfflineCacheInstalled: function(){ |
| this.onFrameworkEvent("offlineCacheInstalled"); |
| }, |
| |
| _cacheDojoResources: function(){ |
| // if we are a non-optimized build, then the core Dojo bootstrap |
| // system was loaded as separate JavaScript files; |
| // add these to our offline cache list. these are |
| // loaded before the dojo.require() system exists |
| |
| // FIXME: create a better mechanism in the Dojo core to |
| // expose whether you are dealing with an optimized build; |
| // right now we just scan the SCRIPT tags attached to this |
| // page and see if there is one for _base/_loader/bootstrap.js |
| var isOptimizedBuild = true; |
| dojo.forEach(dojo.query("script"), function(i){ |
| var src = i.getAttribute("src"); |
| if(!src){ return; } |
| |
| if(src.indexOf("_base/_loader/bootstrap.js") != -1){ |
| isOptimizedBuild = false; |
| } |
| }); |
| |
| if(!isOptimizedBuild){ |
| dojox.off.files.cache(dojo.moduleUrl("dojo", "_base.js").uri); |
| dojox.off.files.cache(dojo.moduleUrl("dojo", "_base/_loader/loader.js").uri); |
| dojox.off.files.cache(dojo.moduleUrl("dojo", "_base/_loader/bootstrap.js").uri); |
| |
| // FIXME: pull in the host environment file in a more generic way |
| // for other host environments |
| dojox.off.files.cache(dojo.moduleUrl("dojo", "_base/_loader/hostenv_browser.js").uri); |
| } |
| |
| // add anything that was brought in with a |
| // dojo.require() that resulted in a JavaScript |
| // URL being fetched |
| |
| // FIXME: modify dojo/_base/_loader/loader.js to |
| // expose a public API to get this information |
| |
| for(var i = 0; i < dojo._loadedUrls.length; i++){ |
| dojox.off.files.cache(dojo._loadedUrls[i]); |
| } |
| |
| // FIXME: add the standard Dojo CSS file |
| }, |
| |
| _save: function(){ |
| // summary: |
| // Causes the Dojo Offline framework to save its configuration |
| // data into local storage. |
| }, |
| |
| _load: function(callback){ |
| // summary: |
| // Causes the Dojo Offline framework to load its configuration |
| // data from local storage |
| dojox.off.sync._load(callback); |
| } |
| }); |
| |
| |
| // wait until the storage system is finished loading |
| dojox.storage.manager.addOnLoad(dojo.hitch(dojox.off, "_onStorageLoad")); |
| |
| // wait until the page is finished loading |
| dojo.addOnLoad(dojox.off, "_onPageLoad"); |
| |
| } |
| |
| if(!dojo._hasResource["dojox.off"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. |
| dojo._hasResource["dojox.off"] = true; |
| dojo.provide("dojox.off"); |
| |
| |
| } |
| |
| if(!dojo._hasResource["dojox.off.ui"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. |
| dojo._hasResource["dojox.off.ui"] = true; |
| dojo.provide("dojox.off.ui"); |
| |
| |
| |
| |
| |
| // Author: Brad Neuberg, bkn3@columbia.edu, http://codinginparadise.org |
| |
| // summary: |
| // dojox.off.ui provides a standard, |
| // default user-interface for a |
| // Dojo Offline Widget that can easily |
| // be dropped into applications that would |
| // like to work offline. |
| dojo.mixin(dojox.off.ui, { |
| // appName: String |
| // This application's name, such as "Foobar". Note that |
| // this is a string, not HTML, so embedded markup will |
| // not work, including entities. Only the following |
| // characters are allowed: numbers, letters, and spaces. |
| // You must set this property. |
| appName: "setme", |
| |
| // autoEmbed: boolean |
| // For advanced usage; most developers can ignore this. |
| // Whether to automatically auto-embed the default Dojo Offline |
| // widget into this page; default is true. |
| autoEmbed: true, |
| |
| // autoEmbedID: String |
| // For advanced usage; most developers can ignore this. |
| // The ID of the DOM element that will contain our |
| // Dojo Offline widget; defaults to the ID 'dot-widget'. |
| autoEmbedID: "dot-widget", |
| |
| // runLink: String |
| // For advanced usage; most developers can ignore this. |
| // The URL that should be navigated to to run this |
| // application offline; this will be placed inside of a |
| // link that the user can drag to their desktop and double |
| // click. Note that this URL must exactly match the URL |
| // of the main page of our resource that is offline for |
| // it to be retrieved from the offline cache correctly. |
| // For example, if you have cached your main page as |
| // http://foobar.com/index.html, and you set this to |
| // http://www.foobar.com/index.html, the run link will |
| // not work. By default this value is automatically set to |
| // the URL of this page, so it does not need to be set |
| // manually unless you have unusual needs. |
| runLink: window.location.href, |
| |
| // runLinkTitle: String |
| // For advanced usage; most developers can ignore this. |
| // The text that will be inside of the link that a user |
| // can drag to their desktop to run this application offline. |
| // By default this is automatically set to "Run " plus your |
| // application's name. |
| runLinkTitle: "Run Application", |
| |
| // learnHowPath: String |
| // For advanced usage; most developers can ignore this. |
| // The path to a web page that has information on |
| // how to use this web app offline; defaults to |
| // src/off/ui-template/learnhow.html, relative to |
| // your Dojo installation. Make sure to set |
| // dojo.to.ui.customLearnHowPath to true if you want |
| // a custom Learn How page. |
| learnHowPath: dojo.moduleUrl("dojox", "off/resources/learnhow.html"), |
| |
| // customLearnHowPath: boolean |
| // For advanced usage; most developers can ignore this. |
| // Whether the developer is using their own custom page |
| // for the Learn How instructional page; defaults to false. |
| // Use in conjunction with dojox.off.ui.learnHowPath. |
| customLearnHowPath: false, |
| |
| htmlTemplatePath: dojo.moduleUrl("dojox", "off/resources/offline-widget.html").uri, |
| cssTemplatePath: dojo.moduleUrl("dojox", "off/resources/offline-widget.css").uri, |
| onlineImagePath: dojo.moduleUrl("dojox", "off/resources/greenball.png").uri, |
| offlineImagePath: dojo.moduleUrl("dojox", "off/resources/redball.png").uri, |
| rollerImagePath: dojo.moduleUrl("dojox", "off/resources/roller.gif").uri, |
| checkmarkImagePath: dojo.moduleUrl("dojox", "off/resources/checkmark.png").uri, |
| learnHowJSPath: dojo.moduleUrl("dojox", "off/resources/learnhow.js").uri, |
| |
| _initialized: false, |
| |
| onLoad: function(){ |
| // summary: |
| // A function that should be connected to allow your |
| // application to know when Dojo Offline, the page, and |
| // the Offline Widget are all initialized and ready to be |
| // used: |
| // |
| // dojo.connect(dojox.off.ui, "onLoad", someFunc) |
| }, |
| |
| _initialize: function(){ |
| //console.debug("dojox.off.ui._initialize"); |
| |
| // make sure our app name is correct |
| if(this._validateAppName(this.appName) == false){ |
| alert("You must set dojox.off.ui.appName; it can only contain " |
| + "letters, numbers, and spaces; right now it " |
| + "is incorrectly set to '" + dojox.off.ui.appName + "'"); |
| dojox.off.enabled = false; |
| return; |
| } |
| |
| // set our run link text to its default |
| this.runLinkText = "Run " + this.appName; |
| |
| // setup our event listeners for Dojo Offline events |
| // to update our UI |
| dojo.connect(dojox.off, "onNetwork", this, "_onNetwork"); |
| dojo.connect(dojox.off.sync, "onSync", this, "_onSync"); |
| |
| // cache our default UI resources |
| dojox.off.files.cache([ |
| this.htmlTemplatePath, |
| this.cssTemplatePath, |
| this.onlineImagePath, |
| this.offlineImagePath, |
| this.rollerImagePath, |
| this.checkmarkImagePath |
| ]); |
| |
| // embed the offline widget UI |
| if(this.autoEmbed){ |
| this._doAutoEmbed(); |
| } |
| }, |
| |
| _doAutoEmbed: function(){ |
| // fetch our HTML for the offline widget |
| |
| // dispatch the request |
| dojo.xhrGet({ |
| url: this.htmlTemplatePath, |
| handleAs: "text", |
| error: function(err){ |
| dojox.off.enabled = false; |
| err = err.message||err; |
| alert("Error loading the Dojo Offline Widget from " |
| + this.htmlTemplatePath + ": " + err); |
| }, |
| load: dojo.hitch(this, this._templateLoaded) |
| }); |
| }, |
| |
| _templateLoaded: function(data){ |
| //console.debug("dojox.off.ui._templateLoaded"); |
| // inline our HTML |
| var container = dojo.byId(this.autoEmbedID); |
| if(container){ container.innerHTML = data; } |
| |
| // fill out our image paths |
| this._initImages(); |
| |
| // update our network indicator status ball |
| this._updateNetIndicator(); |
| |
| // update our 'Learn How' text |
| this._initLearnHow(); |
| |
| this._initialized = true; |
| |
| // check offline cache settings |
| if(!dojox.off.hasOfflineCache){ |
| this._showNeedsOfflineCache(); |
| return; |
| } |
| |
| // check to see if we need a browser restart |
| // to be able to use this web app offline |
| if(dojox.off.hasOfflineCache && dojox.off.browserRestart){ |
| this._needsBrowserRestart(); |
| return; |
| }else{ |
| var browserRestart = dojo.byId("dot-widget-browser-restart"); |
| if(browserRestart){ browserRestart.style.display = "none"; } |
| } |
| |
| // update our sync UI |
| this._updateSyncUI(); |
| |
| // register our event listeners for our main buttons |
| this._initMainEvtHandlers(); |
| |
| // if offline functionality is disabled, disable everything |
| this._setOfflineEnabled(dojox.off.enabled); |
| |
| // update our UI based on the state of the network |
| this._onNetwork(dojox.off.isOnline ? "online" : "offline"); |
| |
| // try to go online |
| this._testNet(); |
| }, |
| |
| _testNet: function(){ |
| dojox.off.goOnline(dojo.hitch(this, function(isOnline){ |
| //console.debug("testNet callback, isOnline="+isOnline); |
| |
| // display our online/offline results |
| this._onNetwork(isOnline ? "online" : "offline"); |
| |
| // indicate that our default UI |
| // and Dojo Offline are now ready to |
| // be used |
| this.onLoad(); |
| })); |
| }, |
| |
| _updateNetIndicator: function(){ |
| var onlineImg = dojo.byId("dot-widget-network-indicator-online"); |
| var offlineImg = dojo.byId("dot-widget-network-indicator-offline"); |
| var titleText = dojo.byId("dot-widget-title-text"); |
| |
| if(onlineImg && offlineImg){ |
| if(dojox.off.isOnline == true){ |
| onlineImg.style.display = "inline"; |
| offlineImg.style.display = "none"; |
| }else{ |
| onlineImg.style.display = "none"; |
| offlineImg.style.display = "inline"; |
| } |
| } |
| |
| if(titleText){ |
| if(dojox.off.isOnline){ |
| titleText.innerHTML = "Online"; |
| }else{ |
| titleText.innerHTML = "Offline"; |
| } |
| } |
| }, |
| |
| _initLearnHow: function(){ |
| var learnHow = dojo.byId("dot-widget-learn-how-link"); |
| |
| if(!learnHow){ return; } |
| |
| if(!this.customLearnHowPath){ |
| // add parameters to URL so the Learn How page |
| // can customize itself and display itself |
| // correctly based on framework settings |
| var dojoPath = djConfig.baseRelativePath; |
| this.learnHowPath += "?appName=" + encodeURIComponent(this.appName) |
| + "&hasOfflineCache=" + dojox.off.hasOfflineCache |
| + "&runLink=" + encodeURIComponent(this.runLink) |
| + "&runLinkText=" + encodeURIComponent(this.runLinkText) |
| + "&baseRelativePath=" + encodeURIComponent(dojoPath); |
| |
| // cache our Learn How JavaScript page and |
| // the HTML version with full query parameters |
| // so it is available offline without a cache miss |
| dojox.off.files.cache(this.learnHowJSPath); |
| dojox.off.files.cache(this.learnHowPath); |
| } |
| |
| learnHow.setAttribute("href", this.learnHowPath); |
| |
| var appName = dojo.byId("dot-widget-learn-how-app-name"); |
| |
| if(!appName){ return; } |
| |
| appName.innerHTML = ""; |
| appName.appendChild(document.createTextNode(this.appName)); |
| }, |
| |
| _validateAppName: function(appName){ |
| if(!appName){ return false; } |
| |
| return (/^[a-z0-9 ]*$/i.test(appName)); |
| }, |
| |
| _updateSyncUI: function(){ |
| var roller = dojo.byId("dot-roller"); |
| var checkmark = dojo.byId("dot-success-checkmark"); |
| var syncMessages = dojo.byId("dot-sync-messages"); |
| var details = dojo.byId("dot-sync-details"); |
| var cancel = dojo.byId("dot-sync-cancel"); |
| |
| if(dojox.off.sync.isSyncing){ |
| this._clearSyncMessage(); |
| |
| if(roller){ roller.style.display = "inline"; } |
| |
| if(checkmark){ checkmark.style.display = "none"; } |
| |
| if(syncMessages){ |
| dojo.removeClass(syncMessages, "dot-sync-error"); |
| } |
| |
| if(details){ details.style.display = "none"; } |
| |
| if(cancel){ cancel.style.display = "inline"; } |
| }else{ |
| if(roller){ roller.style.display = "none"; } |
| |
| if(cancel){ cancel.style.display = "none"; } |
| |
| if(syncMessages){ |
| dojo.removeClass(syncMessages, "dot-sync-error"); |
| } |
| } |
| }, |
| |
| _setSyncMessage: function(message){ |
| var syncMessage = dojo.byId("dot-sync-messages"); |
| if(syncMessage){ |
| // when used with Google Gears pre-release in Firefox/Mac OS X, |
| // the browser would crash when testing in Moxie |
| // if we set the message this way for some reason. |
| // Brad Neuberg, bkn3@columbia.edu |
| //syncMessage.innerHTML = message; |
| |
| while(syncMessage.firstChild){ |
| syncMessage.removeChild(syncMessage.firstChild); |
| } |
| syncMessage.appendChild(document.createTextNode(message)); |
| } |
| }, |
| |
| _clearSyncMessage: function(){ |
| this._setSyncMessage(""); |
| }, |
| |
| _initImages: function(){ |
| var onlineImg = dojo.byId("dot-widget-network-indicator-online"); |
| if(onlineImg){ |
| onlineImg.setAttribute("src", this.onlineImagePath); |
| } |
| |
| var offlineImg = dojo.byId("dot-widget-network-indicator-offline"); |
| if(offlineImg){ |
| offlineImg.setAttribute("src", this.offlineImagePath); |
| } |
| |
| var roller = dojo.byId("dot-roller"); |
| if(roller){ |
| roller.setAttribute("src", this.rollerImagePath); |
| } |
| |
| var checkmark = dojo.byId("dot-success-checkmark"); |
| if(checkmark){ |
| checkmark.setAttribute("src", this.checkmarkImagePath); |
| } |
| }, |
| |
| _showDetails: function(evt){ |
| // cancel the button's default behavior |
| evt.preventDefault(); |
| evt.stopPropagation(); |
| |
| if(!dojox.off.sync.details.length){ |
| return; |
| } |
| |
| // determine our HTML message to display |
| var html = ""; |
| html += "<html><head><title>Sync Details</title><head><body>"; |
| html += "<h1>Sync Details</h1>\n"; |
| html += "<ul>\n"; |
| for(var i = 0; i < dojox.off.sync.details.length; i++){ |
| html += "<li>"; |
| html += dojox.off.sync.details[i]; |
| html += "</li>"; |
| } |
| html += "</ul>\n"; |
| html += "<a href='javascript:window.close()' " |
| + "style='text-align: right; padding-right: 2em;'>" |
| + "Close Window" |
| + "</a>\n"; |
| html += "</body></html>"; |
| |
| // open a popup window with this message |
| var windowParams = "height=400,width=600,resizable=true," |
| + "scrollbars=true,toolbar=no,menubar=no," |
| + "location=no,directories=no,dependent=yes"; |
| |
| var popup = window.open("", "SyncDetails", windowParams); |
| |
| if(!popup){ // aggressive popup blocker |
| alert("Please allow popup windows for this domain; can't display sync details window"); |
| return; |
| } |
| |
| popup.document.open(); |
| popup.document.write(html); |
| popup.document.close(); |
| |
| // put the focus on the popup window |
| if(popup.focus){ |
| popup.focus(); |
| } |
| }, |
| |
| _cancel: function(evt){ |
| // cancel the button's default behavior |
| evt.preventDefault(); |
| evt.stopPropagation(); |
| |
| dojox.off.sync.cancel(); |
| }, |
| |
| _needsBrowserRestart: function(){ |
| var browserRestart = dojo.byId("dot-widget-browser-restart"); |
| if(browserRestart){ |
| dojo.addClass(browserRestart, "dot-needs-browser-restart"); |
| } |
| |
| var appName = dojo.byId("dot-widget-browser-restart-app-name"); |
| if(appName){ |
| appName.innerHTML = ""; |
| appName.appendChild(document.createTextNode(this.appName)); |
| } |
| |
| var status = dojo.byId("dot-sync-status"); |
| if(status){ |
| status.style.display = "none"; |
| } |
| }, |
| |
| _showNeedsOfflineCache: function(){ |
| var widgetContainer = dojo.byId("dot-widget-container"); |
| if(widgetContainer){ |
| dojo.addClass(widgetContainer, "dot-needs-offline-cache"); |
| } |
| }, |
| |
| _hideNeedsOfflineCache: function(){ |
| var widgetContainer = dojo.byId("dot-widget-container"); |
| if(widgetContainer){ |
| dojo.removeClass(widgetContainer, "dot-needs-offline-cache"); |
| } |
| }, |
| |
| _initMainEvtHandlers: function(){ |
| var detailsButton = dojo.byId("dot-sync-details-button"); |
| if(detailsButton){ |
| dojo.connect(detailsButton, "onclick", this, this._showDetails); |
| } |
| var cancelButton = dojo.byId("dot-sync-cancel-button"); |
| if(cancelButton){ |
| dojo.connect(cancelButton, "onclick", this, this._cancel); |
| } |
| }, |
| |
| _setOfflineEnabled: function(enabled){ |
| var elems = []; |
| elems.push(dojo.byId("dot-sync-status")); |
| |
| for(var i = 0; i < elems.length; i++){ |
| if(elems[i]){ |
| elems[i].style.visibility = |
| (enabled ? "visible" : "hidden"); |
| } |
| } |
| }, |
| |
| _syncFinished: function(){ |
| this._updateSyncUI(); |
| |
| var checkmark = dojo.byId("dot-success-checkmark"); |
| var details = dojo.byId("dot-sync-details"); |
| |
| if(dojox.off.sync.successful == true){ |
| this._setSyncMessage("Sync Successful"); |
| if(checkmark){ checkmark.style.display = "inline"; } |
| }else if(dojox.off.sync.cancelled == true){ |
| this._setSyncMessage("Sync Cancelled"); |
| |
| if(checkmark){ checkmark.style.display = "none"; } |
| }else{ |
| this._setSyncMessage("Sync Error"); |
| |
| var messages = dojo.byId("dot-sync-messages"); |
| if(messages){ |
| dojo.addClass(messages, "dot-sync-error"); |
| } |
| |
| if(checkmark){ checkmark.style.display = "none"; } |
| } |
| |
| if(dojox.off.sync.details.length && details){ |
| details.style.display = "inline"; |
| } |
| }, |
| |
| _onFrameworkEvent: function(type, saveData){ |
| if(type == "save"){ |
| if(saveData.status == dojox.storage.FAILED && !saveData.isCoreSave){ |
| alert("Please increase the amount of local storage available " |
| + "to this application"); |
| if(dojox.storage.hasSettingsUI()){ |
| dojox.storage.showSettingsUI(); |
| } |
| |
| // FIXME: Be able to know if storage size has changed |
| // due to user configuration |
| } |
| }else if(type == "coreOperationFailed"){ |
| console.log("Application does not have permission to use Dojo Offline"); |
| |
| if(!this._userInformed){ |
| alert("This application will not work if Google Gears is not allowed to run"); |
| this._userInformed = true; |
| } |
| }else if(type == "offlineCacheInstalled"){ |
| // clear out the 'needs offline cache' info |
| this._hideNeedsOfflineCache(); |
| |
| // check to see if we need a browser restart |
| // to be able to use this web app offline |
| if(dojox.off.hasOfflineCache == true |
| && dojox.off.browserRestart == true){ |
| this._needsBrowserRestart(); |
| return; |
| }else{ |
| var browserRestart = dojo.byId("dot-widget-browser-restart"); |
| if(browserRestart){ |
| browserRestart.style.display = "none"; |
| } |
| } |
| |
| // update our sync UI |
| this._updateSyncUI(); |
| |
| // register our event listeners for our main buttons |
| this._initMainEvtHandlers(); |
| |
| // if offline is disabled, disable everything |
| this._setOfflineEnabled(dojox.off.enabled); |
| |
| // try to go online |
| this._testNet(); |
| } |
| }, |
| |
| _onSync: function(type){ |
| //console.debug("ui, onSync="+type); |
| switch(type){ |
| case "start": |
| this._updateSyncUI(); |
| break; |
| |
| case "refreshFiles": |
| this._setSyncMessage("Downloading UI..."); |
| break; |
| |
| case "upload": |
| this._setSyncMessage("Uploading new data..."); |
| break; |
| |
| case "download": |
| this._setSyncMessage("Downloading new data..."); |
| break; |
| |
| case "finished": |
| this._syncFinished(); |
| break; |
| |
| case "cancel": |
| this._setSyncMessage("Canceling Sync..."); |
| break; |
| |
| default: |
| dojo.warn("Programming error: " |
| + "Unknown sync type in dojox.off.ui: " + type); |
| break; |
| } |
| }, |
| |
| _onNetwork: function(type){ |
| // summary: |
| // Called when we go on- or off-line |
| // description: |
| // When we go online or offline, this method is called to update |
| // our UI. Default behavior is to update the Offline |
| // Widget UI and to attempt a synchronization. |
| // type: String |
| // "online" if we just moved online, and "offline" if we just |
| // moved offline. |
| |
| if(!this._initialized){ return; } |
| |
| // update UI |
| this._updateNetIndicator(); |
| |
| if(type == "offline"){ |
| this._setSyncMessage("You are working offline"); |
| |
| // clear old details |
| var details = dojo.byId("dot-sync-details"); |
| if(details){ details.style.display = "none"; } |
| |
| // if we fell offline during a sync, hide |
| // the sync info |
| this._updateSyncUI(); |
| }else{ // online |
| // synchronize, but pause for a few seconds |
| // so that the user can orient themselves |
| if(dojox.off.sync.autoSync){ |
| window.setTimeout("dojox.off.sync.synchronize()", 1000); |
| } |
| } |
| } |
| }); |
| |
| // register ourselves for low-level framework events |
| dojo.connect(dojox.off, "onFrameworkEvent", dojox.off.ui, "_onFrameworkEvent"); |
| |
| // start our magic when the Dojo Offline framework is ready to go |
| dojo.connect(dojox.off, "onLoad", dojox.off.ui, dojox.off.ui._initialize); |
| |
| } |
| |
| if(!dojo._hasResource["dojox.off.offline"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. |
| dojo._hasResource["dojox.off.offline"] = true; |
| dojo.provide("dojox.off.offline"); |
| |
| |
| |
| |
| |
| |
| |
| } |
| |
