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0,0 → 1,551 |
/* |
Copyright (c) 2004-2006, 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/community/licensing.shtml |
*/ |
|
dojo.provide("dojo.event.common"); |
dojo.require("dojo.lang.array"); |
dojo.require("dojo.lang.extras"); |
dojo.require("dojo.lang.func"); |
dojo.event = new function () { |
this._canTimeout = dojo.lang.isFunction(dj_global["setTimeout"]) || dojo.lang.isAlien(dj_global["setTimeout"]); |
function interpolateArgs(args, searchForNames) { |
var dl = dojo.lang; |
var ao = {srcObj:dj_global, srcFunc:null, adviceObj:dj_global, adviceFunc:null, aroundObj:null, aroundFunc:null, adviceType:(args.length > 2) ? args[0] : "after", precedence:"last", once:false, delay:null, rate:0, adviceMsg:false, maxCalls:-1}; |
switch (args.length) { |
case 0: |
return; |
case 1: |
return; |
case 2: |
ao.srcFunc = args[0]; |
ao.adviceFunc = args[1]; |
break; |
case 3: |
if ((dl.isObject(args[0])) && (dl.isString(args[1])) && (dl.isString(args[2]))) { |
ao.adviceType = "after"; |
ao.srcObj = args[0]; |
ao.srcFunc = args[1]; |
ao.adviceFunc = args[2]; |
} else { |
if ((dl.isString(args[1])) && (dl.isString(args[2]))) { |
ao.srcFunc = args[1]; |
ao.adviceFunc = args[2]; |
} else { |
if ((dl.isObject(args[0])) && (dl.isString(args[1])) && (dl.isFunction(args[2]))) { |
ao.adviceType = "after"; |
ao.srcObj = args[0]; |
ao.srcFunc = args[1]; |
var tmpName = dl.nameAnonFunc(args[2], ao.adviceObj, searchForNames); |
ao.adviceFunc = tmpName; |
} else { |
if ((dl.isFunction(args[0])) && (dl.isObject(args[1])) && (dl.isString(args[2]))) { |
ao.adviceType = "after"; |
ao.srcObj = dj_global; |
var tmpName = dl.nameAnonFunc(args[0], ao.srcObj, searchForNames); |
ao.srcFunc = tmpName; |
ao.adviceObj = args[1]; |
ao.adviceFunc = args[2]; |
} |
} |
} |
} |
break; |
case 4: |
if ((dl.isObject(args[0])) && (dl.isObject(args[2]))) { |
ao.adviceType = "after"; |
ao.srcObj = args[0]; |
ao.srcFunc = args[1]; |
ao.adviceObj = args[2]; |
ao.adviceFunc = args[3]; |
} else { |
if ((dl.isString(args[0])) && (dl.isString(args[1])) && (dl.isObject(args[2]))) { |
ao.adviceType = args[0]; |
ao.srcObj = dj_global; |
ao.srcFunc = args[1]; |
ao.adviceObj = args[2]; |
ao.adviceFunc = args[3]; |
} else { |
if ((dl.isString(args[0])) && (dl.isFunction(args[1])) && (dl.isObject(args[2]))) { |
ao.adviceType = args[0]; |
ao.srcObj = dj_global; |
var tmpName = dl.nameAnonFunc(args[1], dj_global, searchForNames); |
ao.srcFunc = tmpName; |
ao.adviceObj = args[2]; |
ao.adviceFunc = args[3]; |
} else { |
if ((dl.isString(args[0])) && (dl.isObject(args[1])) && (dl.isString(args[2])) && (dl.isFunction(args[3]))) { |
ao.srcObj = args[1]; |
ao.srcFunc = args[2]; |
var tmpName = dl.nameAnonFunc(args[3], dj_global, searchForNames); |
ao.adviceObj = dj_global; |
ao.adviceFunc = tmpName; |
} else { |
if (dl.isObject(args[1])) { |
ao.srcObj = args[1]; |
ao.srcFunc = args[2]; |
ao.adviceObj = dj_global; |
ao.adviceFunc = args[3]; |
} else { |
if (dl.isObject(args[2])) { |
ao.srcObj = dj_global; |
ao.srcFunc = args[1]; |
ao.adviceObj = args[2]; |
ao.adviceFunc = args[3]; |
} else { |
ao.srcObj = ao.adviceObj = ao.aroundObj = dj_global; |
ao.srcFunc = args[1]; |
ao.adviceFunc = args[2]; |
ao.aroundFunc = args[3]; |
} |
} |
} |
} |
} |
} |
break; |
case 6: |
ao.srcObj = args[1]; |
ao.srcFunc = args[2]; |
ao.adviceObj = args[3]; |
ao.adviceFunc = args[4]; |
ao.aroundFunc = args[5]; |
ao.aroundObj = dj_global; |
break; |
default: |
ao.srcObj = args[1]; |
ao.srcFunc = args[2]; |
ao.adviceObj = args[3]; |
ao.adviceFunc = args[4]; |
ao.aroundObj = args[5]; |
ao.aroundFunc = args[6]; |
ao.once = args[7]; |
ao.delay = args[8]; |
ao.rate = args[9]; |
ao.adviceMsg = args[10]; |
ao.maxCalls = (!isNaN(parseInt(args[11]))) ? args[11] : -1; |
break; |
} |
if (dl.isFunction(ao.aroundFunc)) { |
var tmpName = dl.nameAnonFunc(ao.aroundFunc, ao.aroundObj, searchForNames); |
ao.aroundFunc = tmpName; |
} |
if (dl.isFunction(ao.srcFunc)) { |
ao.srcFunc = dl.getNameInObj(ao.srcObj, ao.srcFunc); |
} |
if (dl.isFunction(ao.adviceFunc)) { |
ao.adviceFunc = dl.getNameInObj(ao.adviceObj, ao.adviceFunc); |
} |
if ((ao.aroundObj) && (dl.isFunction(ao.aroundFunc))) { |
ao.aroundFunc = dl.getNameInObj(ao.aroundObj, ao.aroundFunc); |
} |
if (!ao.srcObj) { |
dojo.raise("bad srcObj for srcFunc: " + ao.srcFunc); |
} |
if (!ao.adviceObj) { |
dojo.raise("bad adviceObj for adviceFunc: " + ao.adviceFunc); |
} |
if (!ao.adviceFunc) { |
dojo.debug("bad adviceFunc for srcFunc: " + ao.srcFunc); |
dojo.debugShallow(ao); |
} |
return ao; |
} |
this.connect = function () { |
if (arguments.length == 1) { |
var ao = arguments[0]; |
} else { |
var ao = interpolateArgs(arguments, true); |
} |
if (dojo.lang.isArray(ao.srcObj) && ao.srcObj != "") { |
var tmpAO = {}; |
for (var x in ao) { |
tmpAO[x] = ao[x]; |
} |
var mjps = []; |
dojo.lang.forEach(ao.srcObj, function (src) { |
if ((dojo.render.html.capable) && (dojo.lang.isString(src))) { |
src = dojo.byId(src); |
} |
tmpAO.srcObj = src; |
mjps.push(dojo.event.connect.call(dojo.event, tmpAO)); |
}); |
return mjps; |
} |
var mjp = dojo.event.MethodJoinPoint.getForMethod(ao.srcObj, ao.srcFunc); |
if (ao.adviceFunc) { |
var mjp2 = dojo.event.MethodJoinPoint.getForMethod(ao.adviceObj, ao.adviceFunc); |
} |
mjp.kwAddAdvice(ao); |
return mjp; |
}; |
this.log = function (a1, a2) { |
var kwArgs; |
if ((arguments.length == 1) && (typeof a1 == "object")) { |
kwArgs = a1; |
} else { |
kwArgs = {srcObj:a1, srcFunc:a2}; |
} |
kwArgs.adviceFunc = function () { |
var argsStr = []; |
for (var x = 0; x < arguments.length; x++) { |
argsStr.push(arguments[x]); |
} |
dojo.debug("(" + kwArgs.srcObj + ")." + kwArgs.srcFunc, ":", argsStr.join(", ")); |
}; |
this.kwConnect(kwArgs); |
}; |
this.connectBefore = function () { |
var args = ["before"]; |
for (var i = 0; i < arguments.length; i++) { |
args.push(arguments[i]); |
} |
return this.connect.apply(this, args); |
}; |
this.connectAround = function () { |
var args = ["around"]; |
for (var i = 0; i < arguments.length; i++) { |
args.push(arguments[i]); |
} |
return this.connect.apply(this, args); |
}; |
this.connectOnce = function () { |
var ao = interpolateArgs(arguments, true); |
ao.once = true; |
return this.connect(ao); |
}; |
this.connectRunOnce = function () { |
var ao = interpolateArgs(arguments, true); |
ao.maxCalls = 1; |
return this.connect(ao); |
}; |
this._kwConnectImpl = function (kwArgs, disconnect) { |
var fn = (disconnect) ? "disconnect" : "connect"; |
if (typeof kwArgs["srcFunc"] == "function") { |
kwArgs.srcObj = kwArgs["srcObj"] || dj_global; |
var tmpName = dojo.lang.nameAnonFunc(kwArgs.srcFunc, kwArgs.srcObj, true); |
kwArgs.srcFunc = tmpName; |
} |
if (typeof kwArgs["adviceFunc"] == "function") { |
kwArgs.adviceObj = kwArgs["adviceObj"] || dj_global; |
var tmpName = dojo.lang.nameAnonFunc(kwArgs.adviceFunc, kwArgs.adviceObj, true); |
kwArgs.adviceFunc = tmpName; |
} |
kwArgs.srcObj = kwArgs["srcObj"] || dj_global; |
kwArgs.adviceObj = kwArgs["adviceObj"] || kwArgs["targetObj"] || dj_global; |
kwArgs.adviceFunc = kwArgs["adviceFunc"] || kwArgs["targetFunc"]; |
return dojo.event[fn](kwArgs); |
}; |
this.kwConnect = function (kwArgs) { |
return this._kwConnectImpl(kwArgs, false); |
}; |
this.disconnect = function () { |
if (arguments.length == 1) { |
var ao = arguments[0]; |
} else { |
var ao = interpolateArgs(arguments, true); |
} |
if (!ao.adviceFunc) { |
return; |
} |
if (dojo.lang.isString(ao.srcFunc) && (ao.srcFunc.toLowerCase() == "onkey")) { |
if (dojo.render.html.ie) { |
ao.srcFunc = "onkeydown"; |
this.disconnect(ao); |
} |
ao.srcFunc = "onkeypress"; |
} |
if (!ao.srcObj[ao.srcFunc]) { |
return null; |
} |
var mjp = dojo.event.MethodJoinPoint.getForMethod(ao.srcObj, ao.srcFunc, true); |
mjp.removeAdvice(ao.adviceObj, ao.adviceFunc, ao.adviceType, ao.once); |
return mjp; |
}; |
this.kwDisconnect = function (kwArgs) { |
return this._kwConnectImpl(kwArgs, true); |
}; |
}; |
dojo.event.MethodInvocation = function (join_point, obj, args) { |
this.jp_ = join_point; |
this.object = obj; |
this.args = []; |
for (var x = 0; x < args.length; x++) { |
this.args[x] = args[x]; |
} |
this.around_index = -1; |
}; |
dojo.event.MethodInvocation.prototype.proceed = function () { |
this.around_index++; |
if (this.around_index >= this.jp_.around.length) { |
return this.jp_.object[this.jp_.methodname].apply(this.jp_.object, this.args); |
} else { |
var ti = this.jp_.around[this.around_index]; |
var mobj = ti[0] || dj_global; |
var meth = ti[1]; |
return mobj[meth].call(mobj, this); |
} |
}; |
dojo.event.MethodJoinPoint = function (obj, funcName) { |
this.object = obj || dj_global; |
this.methodname = funcName; |
this.methodfunc = this.object[funcName]; |
this.squelch = false; |
}; |
dojo.event.MethodJoinPoint.getForMethod = function (obj, funcName) { |
if (!obj) { |
obj = dj_global; |
} |
var ofn = obj[funcName]; |
if (!ofn) { |
ofn = obj[funcName] = function () { |
}; |
if (!obj[funcName]) { |
dojo.raise("Cannot set do-nothing method on that object " + funcName); |
} |
} else { |
if ((typeof ofn != "function") && (!dojo.lang.isFunction(ofn)) && (!dojo.lang.isAlien(ofn))) { |
return null; |
} |
} |
var jpname = funcName + "$joinpoint"; |
var jpfuncname = funcName + "$joinpoint$method"; |
var joinpoint = obj[jpname]; |
if (!joinpoint) { |
var isNode = false; |
if (dojo.event["browser"]) { |
if ((obj["attachEvent"]) || (obj["nodeType"]) || (obj["addEventListener"])) { |
isNode = true; |
dojo.event.browser.addClobberNodeAttrs(obj, [jpname, jpfuncname, funcName]); |
} |
} |
var origArity = ofn.length; |
obj[jpfuncname] = ofn; |
joinpoint = obj[jpname] = new dojo.event.MethodJoinPoint(obj, jpfuncname); |
if (!isNode) { |
obj[funcName] = function () { |
return joinpoint.run.apply(joinpoint, arguments); |
}; |
} else { |
obj[funcName] = function () { |
var args = []; |
if (!arguments.length) { |
var evt = null; |
try { |
if (obj.ownerDocument) { |
evt = obj.ownerDocument.parentWindow.event; |
} else { |
if (obj.documentElement) { |
evt = obj.documentElement.ownerDocument.parentWindow.event; |
} else { |
if (obj.event) { |
evt = obj.event; |
} else { |
evt = window.event; |
} |
} |
} |
} |
catch (e) { |
evt = window.event; |
} |
if (evt) { |
args.push(dojo.event.browser.fixEvent(evt, this)); |
} |
} else { |
for (var x = 0; x < arguments.length; x++) { |
if ((x == 0) && (dojo.event.browser.isEvent(arguments[x]))) { |
args.push(dojo.event.browser.fixEvent(arguments[x], this)); |
} else { |
args.push(arguments[x]); |
} |
} |
} |
return joinpoint.run.apply(joinpoint, args); |
}; |
} |
obj[funcName].__preJoinArity = origArity; |
} |
return joinpoint; |
}; |
dojo.lang.extend(dojo.event.MethodJoinPoint, {squelch:false, unintercept:function () { |
this.object[this.methodname] = this.methodfunc; |
this.before = []; |
this.after = []; |
this.around = []; |
}, disconnect:dojo.lang.forward("unintercept"), run:function () { |
var obj = this.object || dj_global; |
var args = arguments; |
var aargs = []; |
for (var x = 0; x < args.length; x++) { |
aargs[x] = args[x]; |
} |
var unrollAdvice = function (marr) { |
if (!marr) { |
dojo.debug("Null argument to unrollAdvice()"); |
return; |
} |
var callObj = marr[0] || dj_global; |
var callFunc = marr[1]; |
if (!callObj[callFunc]) { |
dojo.raise("function \"" + callFunc + "\" does not exist on \"" + callObj + "\""); |
} |
var aroundObj = marr[2] || dj_global; |
var aroundFunc = marr[3]; |
var msg = marr[6]; |
var maxCount = marr[7]; |
if (maxCount > -1) { |
if (maxCount == 0) { |
return; |
} |
marr[7]--; |
} |
var undef; |
var to = {args:[], jp_:this, object:obj, proceed:function () { |
return callObj[callFunc].apply(callObj, to.args); |
}}; |
to.args = aargs; |
var delay = parseInt(marr[4]); |
var hasDelay = ((!isNaN(delay)) && (marr[4] !== null) && (typeof marr[4] != "undefined")); |
if (marr[5]) { |
var rate = parseInt(marr[5]); |
var cur = new Date(); |
var timerSet = false; |
if ((marr["last"]) && ((cur - marr.last) <= rate)) { |
if (dojo.event._canTimeout) { |
if (marr["delayTimer"]) { |
clearTimeout(marr.delayTimer); |
} |
var tod = parseInt(rate * 2); |
var mcpy = dojo.lang.shallowCopy(marr); |
marr.delayTimer = setTimeout(function () { |
mcpy[5] = 0; |
unrollAdvice(mcpy); |
}, tod); |
} |
return; |
} else { |
marr.last = cur; |
} |
} |
if (aroundFunc) { |
aroundObj[aroundFunc].call(aroundObj, to); |
} else { |
if ((hasDelay) && ((dojo.render.html) || (dojo.render.svg))) { |
dj_global["setTimeout"](function () { |
if (msg) { |
callObj[callFunc].call(callObj, to); |
} else { |
callObj[callFunc].apply(callObj, args); |
} |
}, delay); |
} else { |
if (msg) { |
callObj[callFunc].call(callObj, to); |
} else { |
callObj[callFunc].apply(callObj, args); |
} |
} |
} |
}; |
var unRollSquelch = function () { |
if (this.squelch) { |
try { |
return unrollAdvice.apply(this, arguments); |
} |
catch (e) { |
dojo.debug(e); |
} |
} else { |
return unrollAdvice.apply(this, arguments); |
} |
}; |
if ((this["before"]) && (this.before.length > 0)) { |
dojo.lang.forEach(this.before.concat(new Array()), unRollSquelch); |
} |
var result; |
try { |
if ((this["around"]) && (this.around.length > 0)) { |
var mi = new dojo.event.MethodInvocation(this, obj, args); |
result = mi.proceed(); |
} else { |
if (this.methodfunc) { |
result = this.object[this.methodname].apply(this.object, args); |
} |
} |
} |
catch (e) { |
if (!this.squelch) { |
dojo.debug(e, "when calling", this.methodname, "on", this.object, "with arguments", args); |
dojo.raise(e); |
} |
} |
if ((this["after"]) && (this.after.length > 0)) { |
dojo.lang.forEach(this.after.concat(new Array()), unRollSquelch); |
} |
return (this.methodfunc) ? result : null; |
}, getArr:function (kind) { |
var type = "after"; |
if ((typeof kind == "string") && (kind.indexOf("before") != -1)) { |
type = "before"; |
} else { |
if (kind == "around") { |
type = "around"; |
} |
} |
if (!this[type]) { |
this[type] = []; |
} |
return this[type]; |
}, kwAddAdvice:function (args) { |
this.addAdvice(args["adviceObj"], args["adviceFunc"], args["aroundObj"], args["aroundFunc"], args["adviceType"], args["precedence"], args["once"], args["delay"], args["rate"], args["adviceMsg"], args["maxCalls"]); |
}, addAdvice:function (thisAdviceObj, thisAdvice, thisAroundObj, thisAround, adviceType, precedence, once, delay, rate, asMessage, maxCalls) { |
var arr = this.getArr(adviceType); |
if (!arr) { |
dojo.raise("bad this: " + this); |
} |
var ao = [thisAdviceObj, thisAdvice, thisAroundObj, thisAround, delay, rate, asMessage, maxCalls]; |
if (once) { |
if (this.hasAdvice(thisAdviceObj, thisAdvice, adviceType, arr) >= 0) { |
return; |
} |
} |
if (precedence == "first") { |
arr.unshift(ao); |
} else { |
arr.push(ao); |
} |
}, hasAdvice:function (thisAdviceObj, thisAdvice, adviceType, arr) { |
if (!arr) { |
arr = this.getArr(adviceType); |
} |
var ind = -1; |
for (var x = 0; x < arr.length; x++) { |
var aao = (typeof thisAdvice == "object") ? (new String(thisAdvice)).toString() : thisAdvice; |
var a1o = (typeof arr[x][1] == "object") ? (new String(arr[x][1])).toString() : arr[x][1]; |
if ((arr[x][0] == thisAdviceObj) && (a1o == aao)) { |
ind = x; |
} |
} |
return ind; |
}, removeAdvice:function (thisAdviceObj, thisAdvice, adviceType, once) { |
var arr = this.getArr(adviceType); |
var ind = this.hasAdvice(thisAdviceObj, thisAdvice, adviceType, arr); |
if (ind == -1) { |
return false; |
} |
while (ind != -1) { |
arr.splice(ind, 1); |
if (once) { |
break; |
} |
ind = this.hasAdvice(thisAdviceObj, thisAdvice, adviceType, arr); |
} |
return true; |
}}); |
|