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alexandre_ |
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/*
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Copyright (c) 2004-2006, The Dojo Foundation
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All Rights Reserved.
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Licensed under the Academic Free License version 2.1 or above OR the
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modified BSD license. For more information on Dojo licensing, see:
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http://dojotoolkit.org/community/licensing.shtml
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*/
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dojo.provide("dojo.widget.TreeLoadingControllerV3");
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dojo.require("dojo.widget.TreeBasicControllerV3");
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dojo.require("dojo.event.*");
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dojo.require("dojo.json");
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dojo.require("dojo.io.*");
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dojo.require("dojo.Deferred");
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dojo.require("dojo.DeferredList");
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dojo.declare("dojo.Error", Error, function (message, extra) {
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this.message = message;
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this.extra = extra;
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this.stack = (new Error()).stack;
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});
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dojo.declare("dojo.CommunicationError", dojo.Error, function () {
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this.name = "CommunicationError";
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});
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dojo.declare("dojo.LockedError", dojo.Error, function () {
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this.name = "LockedError";
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});
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dojo.declare("dojo.FormatError", dojo.Error, function () {
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this.name = "FormatError";
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});
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dojo.declare("dojo.RpcError", dojo.Error, function () {
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this.name = "RpcError";
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});
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dojo.widget.defineWidget("dojo.widget.TreeLoadingControllerV3", dojo.widget.TreeBasicControllerV3, {RpcUrl:"", RpcActionParam:"action", preventCache:true, checkValidRpcResponse:function (type, obj) {
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if (type != "load") {
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var extra = {};
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for (var i = 1; i < arguments.length; i++) {
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dojo.lang.mixin(extra, arguments[i]);
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}
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return new dojo.CommunicationError(obj, extra);
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}
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if (typeof obj != "object") {
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return new dojo.FormatError("Wrong server answer format " + (obj && obj.toSource ? obj.toSource() : obj) + " type " + (typeof obj), obj);
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}
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if (!dojo.lang.isUndefined(obj.error)) {
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return new dojo.RpcError(obj.error, obj);
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}
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return false;
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}, getDeferredBindHandler:function (deferred) {
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return dojo.lang.hitch(this, function (type, obj) {
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var error = this.checkValidRpcResponse.apply(this, arguments);
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if (error) {
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deferred.errback(error);
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return;
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}
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deferred.callback(obj);
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});
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}, getRpcUrl:function (action) {
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if (this.RpcUrl == "local") {
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var dir = document.location.href.substr(0, document.location.href.lastIndexOf("/"));
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var localUrl = dir + "/local/" + action;
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return localUrl;
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}
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if (!this.RpcUrl) {
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dojo.raise("Empty RpcUrl: can't load");
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}
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var url = this.RpcUrl;
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if (url.indexOf("/") != 0) {
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var protocol = document.location.href.replace(/:\/\/.*/, "");
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var prefix = document.location.href.substring(protocol.length + 3);
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if (prefix.lastIndexOf("/") != prefix.length - 1) {
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prefix = prefix.replace(/\/[^\/]+$/, "/");
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}
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if (prefix.lastIndexOf("/") != prefix.length - 1) {
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prefix = prefix + "/";
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}
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url = protocol + "://" + prefix + url;
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}
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return url + (url.indexOf("?") > -1 ? "&" : "?") + this.RpcActionParam + "=" + action;
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}, loadProcessResponse:function (node, result) {
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if (!dojo.lang.isArray(result)) {
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throw new dojo.FormatError("loadProcessResponse: Not array loaded: " + result);
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}
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node.setChildren(result);
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}, runRpc:function (kw) {
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var _this = this;
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var deferred = new dojo.Deferred();
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dojo.io.bind({url:kw.url, handle:this.getDeferredBindHandler(deferred), mimetype:"text/javascript", preventCache:this.preventCache, sync:kw.sync, content:{data:dojo.json.serialize(kw.params)}});
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return deferred;
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}, loadRemote:function (node, sync) {
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var _this = this;
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var params = {node:this.getInfo(node), tree:this.getInfo(node.tree)};
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var deferred = this.runRpc({url:this.getRpcUrl("getChildren"), sync:sync, params:params});
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deferred.addCallback(function (res) {
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return _this.loadProcessResponse(node, res);
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});
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return deferred;
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}, batchExpandTimeout:0, recurseToLevel:function (widget, level, callFunc, callObj, skipFirst, sync) {
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if (level == 0) {
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return;
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}
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if (!skipFirst) {
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var deferred = callFunc.call(callObj, widget, sync);
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} else {
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var deferred = dojo.Deferred.prototype.makeCalled();
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}
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var _this = this;
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var recurseOnExpand = function () {
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var children = widget.children;
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var deferreds = [];
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for (var i = 0; i < children.length; i++) {
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deferreds.push(_this.recurseToLevel(children[i], level - 1, callFunc, callObj, sync));
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}
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return new dojo.DeferredList(deferreds);
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};
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deferred.addCallback(recurseOnExpand);
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return deferred;
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}, expandToLevel:function (nodeOrTree, level, sync) {
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return this.recurseToLevel(nodeOrTree, nodeOrTree.isTree ? level + 1 : level, this.expand, this, nodeOrTree.isTree, sync);
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}, loadToLevel:function (nodeOrTree, level, sync) {
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return this.recurseToLevel(nodeOrTree, nodeOrTree.isTree ? level + 1 : level, this.loadIfNeeded, this, nodeOrTree.isTree, sync);
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}, loadAll:function (nodeOrTree, sync) {
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return this.loadToLevel(nodeOrTree, Number.POSITIVE_INFINITY, sync);
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}, expand:function (node, sync) {
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var _this = this;
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var deferred = this.startProcessing(node);
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deferred.addCallback(function () {
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return _this.loadIfNeeded(node, sync);
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});
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deferred.addCallback(function (res) {
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dojo.widget.TreeBasicControllerV3.prototype.expand(node);
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return res;
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});
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deferred.addBoth(function (res) {
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_this.finishProcessing(node);
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return res;
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});
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return deferred;
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}, loadIfNeeded:function (node, sync) {
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var deferred;
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if (node.state == node.loadStates.UNCHECKED && node.isFolder && !node.children.length) {
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deferred = this.loadRemote(node, sync);
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} else {
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deferred = new dojo.Deferred();
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deferred.callback();
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}
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return deferred;
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}, runStages:function (check, prepare, make, finalize, expose, args) {
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var _this = this;
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if (check && !check.apply(this, args)) {
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return false;
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}
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var deferred = dojo.Deferred.prototype.makeCalled();
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if (prepare) {
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deferred.addCallback(function () {
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return prepare.apply(_this, args);
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});
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}
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if (make) {
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deferred.addCallback(function () {
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var res = make.apply(_this, args);
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return res;
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});
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}
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if (finalize) {
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deferred.addBoth(function (res) {
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finalize.apply(_this, args);
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return res;
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});
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}
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if (expose) {
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deferred.addCallback(function (res) {
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expose.apply(_this, args);
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return res;
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});
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}
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return deferred;
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}, startProcessing:function (nodesArray) {
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var deferred = new dojo.Deferred();
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var nodes = dojo.lang.isArray(nodesArray) ? nodesArray : arguments;
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for (var i = 0; i < nodes.length; i++) {
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if (nodes[i].isLocked()) {
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deferred.errback(new dojo.LockedError("item locked " + nodes[i], nodes[i]));
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return deferred;
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}
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if (nodes[i].isTreeNode) {
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nodes[i].markProcessing();
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}
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nodes[i].lock();
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}
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deferred.callback();
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return deferred;
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}, finishProcessing:function (nodesArray) {
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var nodes = dojo.lang.isArray(nodesArray) ? nodesArray : arguments;
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for (var i = 0; i < nodes.length; i++) {
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if (!nodes[i].hasLock()) {
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continue;
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}
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nodes[i].unlock();
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if (nodes[i].isTreeNode) {
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nodes[i].unmarkProcessing();
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}
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}
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}, refreshChildren:function (nodeOrTree, sync) {
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return this.runStages(null, this.prepareRefreshChildren, this.doRefreshChildren, this.finalizeRefreshChildren, this.exposeRefreshChildren, arguments);
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}, prepareRefreshChildren:function (nodeOrTree, sync) {
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var deferred = this.startProcessing(nodeOrTree);
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nodeOrTree.destroyChildren();
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nodeOrTree.state = nodeOrTree.loadStates.UNCHECKED;
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return deferred;
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}, doRefreshChildren:function (nodeOrTree, sync) {
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return this.loadRemote(nodeOrTree, sync);
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}, finalizeRefreshChildren:function (nodeOrTree, sync) {
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this.finishProcessing(nodeOrTree);
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}, exposeRefreshChildren:function (nodeOrTree, sync) {
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nodeOrTree.expand();
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}, move:function (child, newParent, index) {
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return this.runStages(this.canMove, this.prepareMove, this.doMove, this.finalizeMove, this.exposeMove, arguments);
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}, doMove:function (child, newParent, index) {
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child.tree.move(child, newParent, index);
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return true;
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}, prepareMove:function (child, newParent, index, sync) {
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var deferred = this.startProcessing(newParent);
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deferred.addCallback(dojo.lang.hitch(this, function () {
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return this.loadIfNeeded(newParent, sync);
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}));
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return deferred;
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}, finalizeMove:function (child, newParent) {
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this.finishProcessing(newParent);
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}, prepareCreateChild:function (parent, index, data, sync) {
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var deferred = this.startProcessing(parent);
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deferred.addCallback(dojo.lang.hitch(this, function () {
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return this.loadIfNeeded(parent, sync);
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}));
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return deferred;
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}, finalizeCreateChild:function (parent) {
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this.finishProcessing(parent);
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}, prepareClone:function (child, newParent, index, deep, sync) {
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var deferred = this.startProcessing(child, newParent);
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deferred.addCallback(dojo.lang.hitch(this, function () {
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return this.loadIfNeeded(newParent, sync);
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}));
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return deferred;
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}, finalizeClone:function (child, newParent) {
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this.finishProcessing(child, newParent);
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}});
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