mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-10-22 14:05:37 +02:00
566643f988
git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@92497 467b73ca-7a2a-4603-9d3b-597d59a354a9
599 lines
19 KiB
JavaScript
599 lines
19 KiB
JavaScript
var Class = {
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create: function() {
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return function() {
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if(this.destroy) Class.registerForDestruction(this);
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if(this.initialize) this.initialize.apply(this, arguments);
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}
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},
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extend: function(baseClassName) {
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constructor = function() {
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var i;
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/*
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var tmp = this.initialize;
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this.initialize = window[baseClassName].initialize;
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window[baseClassName].apply(this, arguments);
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this.initialize = tmp;
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*/
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this[baseClassName] = {}
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for(i in window[baseClassName].prototype) {
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if(!this[i]) this[i] = window[baseClassName].prototype[i];
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if(typeof window[baseClassName].prototype[i] == 'function') {
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this[baseClassName][i] = window[baseClassName].prototype[i].bind(this);
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}
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}
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if(window[baseClassName].getInheritedStuff) {
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window[baseClassName].getInheritedStuff.apply(this);
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}
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if(this.destroy) Class.registerForDestruction(this);
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if(this.initialize) this.initialize.apply(this, arguments);
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}
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constructor.getInheritedStuff = function() {
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var i;
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this[baseClassName] = {}
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for(i in window[baseClassName].prototype) {
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if(!this[i]) this[i] = window[baseClassName].prototype[i];
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if(typeof window[baseClassName].prototype[i] == 'function') {
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this[baseClassName][i] = window[baseClassName].prototype[i].bind(this);
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}
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}
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if(window[baseClassName].getInheritedStuff) {
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window[baseClassName].getInheritedStuff.apply(this);
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}
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}
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return constructor;
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},
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objectsToDestroy : [],
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registerForDestruction: function(obj) {
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if(!Class.addedDestructionLoader) {
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Event.observe(window, 'unload', Class.destroyAllObjects);
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Class.addedDestructionLoader = true;
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}
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Class.objectsToDestroy.push(obj);
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},
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destroyAllObjects: function() {
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var i,item;
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for(i=0;item=Class.objectsToDestroy[i];i++) {
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if(item.destroy) item.destroy();
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}
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Class.objectsToDestroy = null;
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}
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}
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/**
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* Extend function used in multiple inheritance
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*/
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Function.prototype.extend = function(baseClassName) {
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var parentFunc = this;
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var constructor = function() {
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this[baseClassName] = {}
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for(var i in window[baseClassName].prototype) {
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if(!this[i]) this[i] = window[baseClassName].prototype[i];
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this[baseClassName][i] = window[baseClassName].prototype[i].bind(this);
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}
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if(window[baseClassName].getInheritedStuff) {
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window[baseClassName].getInheritedStuff.apply(this);
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}
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if(parentFunc.getInheritedStuff) {
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parentFunc.getInheritedStuff.apply(this);
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}
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parentFunc.apply(this, arguments);
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}
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constructor.getInheritedStuff = function() {
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this[baseClassName] = {}
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var i;
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for(i in window[baseClassName].prototype) {
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if(!this[i]) this[i] = window[baseClassName].prototype[i];
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this[baseClassName][i] = window[baseClassName].prototype[i].bind(this);
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}
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if(window[baseClassName].getInheritedStuff) {
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window[baseClassName].getInheritedStuff.apply(this);
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}
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if(parentFunc.getInheritedStuff) {
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parentFunc.getInheritedStuff.apply(this);
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}
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}
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return constructor;
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}
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Function.prototype.bindAsEventListener = function(object) {
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var __method = this;
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return function(event) {
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return __method.call(object, event || window.event);
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}
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}
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Function.prototype.applyTo = function(cssSelector, arg1, arg2, arg3, arg4, arg5, arg6) {
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if(typeof cssSelector == 'string') {
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var registration = {}
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var targetClass = this;
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registration[cssSelector] = {
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initialise: function() {
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behaveAs(this, targetClass, arg1, arg2, arg3, arg4, arg5, arg6);
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}
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}
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Behaviour.register(registration);
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} else {
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behaveAs(cssSelector, this);
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}
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}
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var _APPLYTOCHILDREN_GENERATED_IDS = 0;
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Function.prototype.applyToChildren = function(parentNode, cssSelector, arg1, arg2, arg3, arg4, arg5, arg6) {
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if(!parentNode.id) {
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_APPLYTOCHILDREN_GENERATED_IDS++;
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parentNode.id = 'atc-gen-id-' + _APPLYTOCHILDREN_GENERATED_IDS;
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}
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this.applyTo('#' + parentNode.id + ' ' + cssSelector);
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}
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if(typeof Behaviour == 'undefined') {
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var Behaviour = {
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isEventHandler : { onclick : true, onfocus : true, onblur : true, onmousedown : true, onmouseup : true, onmouseover: true, onmouseout: true, onclick : true },
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list : new Array,
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namedList : {},
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isDebugging : false,
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register : function(name, sheet){
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if(typeof name == 'object') {
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Behaviour.list.push(name);
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if(Behaviour.alreadyApplied) Behaviour.process(name);
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} else {
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Behaviour.list.push(sheet);
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Behaviour.namedList[name] = sheet;
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if(Behaviour.alreadyApplied) Behaviour.process(sheet);
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}
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},
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start : function(){
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Behaviour.addLoader(function() {Behaviour.apply();});
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},
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debug : function() {
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Behaviour.isDebugging = true;
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},
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apply : function(parentNode, applyToParent){
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// reapply livequery listeners if present
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if(typeof(jQuery) != 'undefined' && typeof(jQuery.livequery) != 'undefined') jQuery.livequery.run();
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if(Behaviour.isDebugging) console.time('Behaviour: apply took');
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if(typeof parentNode == 'string') parentNode = document.getElementById(parentNode);
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var h;
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for (h=0;sheet=Behaviour.list[h];h++){
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Behaviour.process(sheet, parentNode, applyToParent);
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}
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if(Behaviour.isDebugging) console.timeEnd('Behaviour: apply took');
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Behaviour.alreadyApplied = true;
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},
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reapply : function(name) {
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// reapply livequery listeners if present
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if(typeof(jQuery) != 'undefined' && typeof(jQuery.livequery) != 'undefined') jQuery.livequery.run();
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if(Behaviour.namedList[name]) Behaviour.process(Behaviour.namedList[name]);
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},
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process : function(sheet, parentNode, applyToParent) {
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var i;
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var selector;
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var list;
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var element;
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var debugText = "";
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for (selector in sheet){
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if(!sheet[selector]) continue;
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if(Behaviour.isDebugging) console.time('Behaviour: ' + selector);
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list = document.getElementsBySelector(selector, parentNode);
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if (list && list.length > 0) {
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if(Behaviour.isDebugging) console.log("Behaviour: %s: %d items, %o", selector, list.length, list);
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for (i=0;element=list[i];i++){
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if(parentNode == element && applyToParent != true) continue;
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// lastSelectorApplied is a duplicate checker. getElementsBySelector sometimes returns duplicates
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if(element.lastSelectorApplied != sheet[selector]) {
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element.lastSelectorApplied = sheet[selector];
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if(sheet[selector].prototype) {
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behaveAs(element, sheet[selector]);
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} else {
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var x;
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for(x in sheet[selector]) {
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if(element[x] && !element['old_' + x]) element['old_' + x] = element[x];
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if(sheet[selector][x]) {
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if(Behaviour.isEventHandler[x]) {
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element[x] = sheet[selector][x].bindAsEventListener(element);
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// Event.observe(element, x.substr(2), sheet[selector][x]);
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} else {
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element[x] = sheet[selector][x];
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}
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}
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}
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// Two diferent ways of spelling initialize depending on your version of the English language
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if(sheet[selector].initialise) {
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element.initialise();
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} else if(sheet[selector].initialize) {
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element.initialize();
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}
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// Sometimes applyToChildren classes cause sheet[selector] to die in initialise(). Why?
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if(typeof sheet[selector] == 'undefined') break;
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if(sheet[selector].destroy) Class.registerForDestruction(element);
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}
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}
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}
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}
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if(Behaviour.isDebugging) console.timeEnd('Behaviour: ' + selector);
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}
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},
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/**
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* Add a window.onload function.
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*/
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addLoader : function(func){
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Behaviour.addEvent(window,'load', func);
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},
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/**
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* Attach an event listener to the given object
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*/
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addEvent: function(obj, evType, fn, useCapture){
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if (obj.addEventListener){
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obj.addEventListener(evType, fn, useCapture);
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return true;
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} else if (obj.attachEvent){
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var r = obj.attachEvent("on"+evType, fn);
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return r;
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} else {
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alert("Handler could not be attached");
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}
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}
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}
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Behaviour.start();
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}
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/*
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* Force elemnt to "behave like" the given class
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* The constructor will be called an all of the methods attached
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* Think of it as dynamic multiple inheritance... welcome to the messed up
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* yet delightful world of JavaScript
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*/
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function behaveAs(element, behaviourClass, arg1, arg2, arg3, arg4, arg5, arg6) {
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if(!element) return;
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// You can get into icky situations if behaveAs is called twice - the first class passed *has* initialize,
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// and the 2nd class passed *doesn't have it*. The first initialize is called twice, without this delete.
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element.initialize = null;
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var x;
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for(x in behaviourClass.prototype) {
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element[x] = behaviourClass.prototype[x];
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if(x == 'onclick' && element[x]) {
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element[x] = element[x].bindAsEventListener(element);
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}
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}
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behaviourClass.apply(element, [arg1, arg2, arg3, arg4, arg5, arg6]);
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return element;
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}
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/*
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The following code is Copyright (C) Simon Willison 2004.
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document.getElementsBySelector(selector)
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- returns an array of element objects from the current document
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matching the CSS selector. Selectors can contain element names,
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class names and ids and can be nested. For example:
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elements = document.getElementsBySelect('div#main p a.external')
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Will return an array of all 'a' elements with 'external' in their
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class attribute that are contained inside 'p' elements that are
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contained inside the 'div' element which has id="main"
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New in version 0.4: Support for CSS2 and CSS3 attribute selectors:
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See http://www.w3.org/TR/css3-selectors/#attribute-selectors
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Version 0.4 - Simon Willison, March 25th 2003
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-- Works in Phoenix 0.5, Mozilla 1.3, Opera 7, Internet Explorer 6, Internet Explorer 5 on Windows
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-- Opera 7 fails
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***NOTE***: This function will sometimes return duplicates. Sam decided that rather than slow
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down the code with uniqueness checks, it was up to the code that uses this to do so.
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*/
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function getAllChildren(e) {
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// Returns all children of element. Workaround required for IE5/Windows. Ugh.
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return e.all ? e.all : e.getElementsByTagName('*');
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}
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document.getElementsBySelector = function(selector, parentNode) {
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// Attempt to fail gracefully in lesser browsers
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if (!document.getElementsByTagName) {
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return new Array();
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}
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// Split selector in to tokens
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var tokens = selector.split(' ');
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var currentContext = new Array(document);
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for (var i = 0; i < tokens.length; i++) {
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token = tokens[i].replace(/^\s+/,'').replace(/\s+$/,'');;
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if (token.indexOf('#') > -1) {
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// Token is an ID selector
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var bits = token.split('#');
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var tagName = bits[0];
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var id = bits[1];
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var element = document.getElementById(id);
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if (!element || (tagName && element.nodeName.toLowerCase() != tagName)) {
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// tag with that ID not found, return false
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return new Array();
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}
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// Parent node limitation
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if(parentNode && !hasAncestor(element, parentNode) && !hasAncestor(parentNode, element)) {
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return new Array();
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}
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// Set currentContext to contain just this element
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currentContext = new Array(element);
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continue; // Skip to next token
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}
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if (token.indexOf('.') > -1) {
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// Token contains a class selector
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var bits = token.split('.');
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var tagName = bits[0];
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var className = bits[1];
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if (!tagName) {
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tagName = '*';
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}
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// Get elements matching tag, filter them for class selector
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var found = new Array;
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var foundCount = 0;
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for (var h = 0; h < currentContext.length; h++) {
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var elements;
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if(currentContext[h]) {
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if (tagName == '*') {
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elements = getAllChildren(currentContext[h]);
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} else {
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elements = currentContext[h].getElementsByTagName(tagName);
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}
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for (var j = 0; j < elements.length; j++) found[foundCount++] = elements[j];
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}
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}
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currentContext = new Array;
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var currentContextIndex = 0;
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// Single class
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if(bits.length == 2) {
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for (var k = 0; k < found.length; k++) {
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if (found[k].className && found[k].className.match(new RegExp('\\b'+className+'\\b'))) {
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// Parent node limitation
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if(!parentNode || hasAncestor(found[k], parentNode) || hasAncestor(parentNode, found[k])) {
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currentContext[currentContextIndex++] = found[k];
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}
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}
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}
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// Multiple classes
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} else {
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var classNameMatcher = function(el) {
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var i;
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if(!el.className) return false;
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for(i=1;i<bits.length;i++) if(!el.className.match(new RegExp('\\b'+bits[i]+'\\b'))) return false;
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return true;
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}
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for (var k = 0; k < found.length; k++) {
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if (classNameMatcher(found[k])) {
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// Parent node limitation
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if(!parentNode || hasAncestor(found[k], parentNode) || hasAncestor(parentNode, found[k])) {
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currentContext[currentContextIndex++] = found[k];
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}
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}
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}
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}
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continue; // Skip to next token
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}
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// Code to deal with attribute selectors
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if (token.match(/^(\w*)\[(\w+)([=~\|\^\$\*]?)=?"?([^\]"]*)"?\]$/)) {
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var tagName = RegExp.$1;
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var attrName = RegExp.$2;
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var attrOperator = RegExp.$3;
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var attrValue = RegExp.$4;
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if (!tagName) {
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tagName = '*';
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}
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// Grab all of the tagName elements within current context
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var found = new Array;
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var foundCount = 0;
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for (var h = 0; h < currentContext.length; h++) {
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if(currentContext[h]){
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var elements;
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if (tagName == '*') {
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elements = getAllChildren(currentContext[h]);
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} else {
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elements = currentContext[h].getElementsByTagName(tagName);
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}
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for (var j = 0; j < elements.length; j++) {
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// Parent node limitation
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if(!parentNode || hasAncestor(elements[j], parentNode) || hasAncestor(parentNode, elements[j])) {
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found[foundCount++] = elements[j];
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}
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}
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}
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}
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currentContext = new Array;
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var currentContextIndex = 0;
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var checkFunction; // This function will be used to filter the elements
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switch (attrOperator) {
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case '=': // Equality
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checkFunction = function(candAttrValue) { return (candAttrValue == attrValue); };
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break;
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case '~': // Match one of space seperated words
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checkFunction = function(candAttrValue) { return (candAttrValue.match(new RegExp('\\b'+attrValue+'\\b'))); };
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break;
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case '|': // Match start with value followed by optional hyphen
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checkFunction = function(candAttrValue) { return (candAttrValue.match(new RegExp('^'+attrValue+'-?'))); };
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break;
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case '^': // Match starts with value
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checkFunction = function(candAttrValue) { return (candAttrValue.indexOf(attrValue) == 0); };
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break;
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case '$': // Match ends with value - fails with "Warning" in Opera 7
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checkFunction = function(candAttrValue) { return (candAttrValue.lastIndexOf(attrValue) == candAttrValue.length - attrValue.length); };
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break;
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case '*': // Match ends with value
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checkFunction = function(candAttrValue) { return (candAttrValue.indexOf(attrValue) > -1); };
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break;
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default :
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// Just test for existence of attribute
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checkFunction = function(candAttrValue) { return candAttrValue; };
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}
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currentContext = new Array;
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var currentContextIndex = 0;
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for (var k = 0; k < found.length; k++) {
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// Class needs special handling
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var candAttrValue = attrName == 'class' ? found[k].className : found[k].getAttribute(attrName);
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if (checkFunction(candAttrValue)) {
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if(!parentNode || hasAncestor(found[k], parentNode) || hasAncestor(parentNode, found[k])) {
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currentContext[currentContextIndex++] = found[k];
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}
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}
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}
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// alert('Attribute Selector: '+tagName+' '+attrName+' '+attrOperator+' '+attrValue);
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continue; // Skip to next token
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}
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if (!currentContext[0]){
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return;
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}
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// If we get here, token is JUST an element (not a class or ID selector)
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tagName = token;
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var found = new Array;
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var foundCount = 0;
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for (var h = 0; h < currentContext.length; h++) {
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var elements = currentContext[h].getElementsByTagName(tagName);
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for (var j = 0; j < elements.length; j++) {
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// Parent node limitation
|
|
if(!parentNode || hasAncestor(elements[j], parentNode) || hasAncestor(parentNode, elements[j])) {
|
|
found[foundCount++] = elements[j];
|
|
}
|
|
}
|
|
}
|
|
currentContext = found;
|
|
}
|
|
|
|
if(parentNode) {
|
|
var i;
|
|
for(i=0;i<currentContext.length;i++) {
|
|
if(!hasAncestor(currentContext[i], parentNode)) currentContext.splice( i, 1 );
|
|
}
|
|
}
|
|
|
|
return currentContext;
|
|
}
|
|
|
|
function hasAncestor(child, ancestor) {
|
|
if(ancestor) {
|
|
if(ancestor.contains) return ancestor == child || ancestor.contains(child);
|
|
|
|
var p = child;
|
|
while(p) {
|
|
if(p == ancestor) return true;
|
|
p = p.parentNode;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/* That revolting regular expression explained
|
|
/^(\w+)\[(\w+)([=~\|\^\$\*]?)=?"?([^\]"]*)"?\]$/
|
|
\---/ \---/\-------------/ \-------/
|
|
| | | |
|
|
| | | The value
|
|
| | ~,|,^,$,* or =
|
|
| Attribute
|
|
Tag
|
|
*/
|
|
|
|
/**
|
|
* Simple observer pattern
|
|
*
|
|
* Call $('sitetree').observe('SelectionChanged', this)
|
|
* -> this.onSelectionChanged(newNode) will be called whenever the selection changes
|
|
* Call $('sitetree').observeMethod('SelectionChanged', this.updateDropdown.bind(this))
|
|
* -> this.updateDropdown(newNode) will be called whenever the selection changes
|
|
* Call $('sitetree').notify('SelectionChanged', newNode)
|
|
* -> The SelectionChanged event will be sent to all observers
|
|
*/
|
|
Observable = Class.create();
|
|
Observable.prototype = {
|
|
observe : function(event, observer) {
|
|
return this.observeMethod(event, observer['on' + Event].bind(observer));
|
|
},
|
|
observeMethod : function(event, method) {
|
|
if(!this.observers) this.observers = {};
|
|
if(!this.observers[event]) this.observers[event] = [];
|
|
|
|
var nextIdx = this.observers[event].length;
|
|
this.observers[event][nextIdx] = method;
|
|
return event + '|' + nextIdx;
|
|
},
|
|
stopObserving : function(observerCode) {
|
|
var parts = observerCode.split('|');
|
|
if(this.observers && this.observers[parts[0]] && this.observers[parts[0]][parts[1]])
|
|
this.observers[parts[0]][parts[1]] = null;
|
|
else
|
|
throw("Observeable.stopObserving: couldn't find '" + observerCode + "'");
|
|
},
|
|
notify : function(event, arg) {
|
|
var i, returnVal = true;
|
|
if(this.observers && this.observers[event]) {
|
|
for(i=0;i<this.observers[event].length;i++) {
|
|
if(this.observers[event][i]) {
|
|
if(this.observers[event][i](arg) == false) returnVal = false;
|
|
}
|
|
}
|
|
}
|
|
return returnVal;
|
|
}
|
|
};
|
|
|
|
if(window.location.href.indexOf('debug_behaviour=') > -1) Behaviour.debug(); |