common.js

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/*
	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.isString(ao.srcFunc) && (ao.srcFunc.toLowerCase() == "onkey")) {
			if (dojo.render.html.ie) {
				ao.srcFunc = "onkeydown";
				this.connect(ao);
			}
			ao.srcFunc = "onkeypress";
		}
		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);
	};