+++ /dev/null
-<html>\r
-<head>\r
- <title>The source code</title>\r
- <link href="../resources/prettify/prettify.css" type="text/css" rel="stylesheet" />\r
- <script type="text/javascript" src="../resources/prettify/prettify.js"></script>\r
-</head>\r
-<body onload="prettyPrint();">\r
- <pre class="prettyprint lang-js">Ext.lib.Event = function() {\r
- var loadComplete = false,\r
- listeners = [],\r
- unloadListeners = [],\r
- retryCount = 0,\r
- onAvailStack = [],\r
- _interval,\r
- locked = false,\r
- win = window,\r
- doc = document,\r
- \r
- // constants \r
- POLL_RETRYS = 200,\r
- POLL_INTERVAL = 20,\r
- EL = 0,\r
- TYPE = 1,\r
- FN = 2,\r
- WFN = 3,\r
- OBJ = 3,\r
- ADJ_SCOPE = 4, \r
- SCROLLLEFT = 'scrollLeft',\r
- SCROLLTOP = 'scrollTop',\r
- UNLOAD = 'unload',\r
- MOUSEOVER = 'mouseover',\r
- MOUSEOUT = 'mouseout',\r
- // private\r
- doAdd = function() {\r
- var ret;\r
- if (win.addEventListener) {\r
- ret = function(el, eventName, fn, capture) {\r
- if (eventName == 'mouseenter') {\r
- fn = fn.createInterceptor(checkRelatedTarget);\r
- el.addEventListener(MOUSEOVER, fn, (capture));\r
- } else if (eventName == 'mouseleave') {\r
- fn = fn.createInterceptor(checkRelatedTarget);\r
- el.addEventListener(MOUSEOUT, fn, (capture));\r
- } else {\r
- el.addEventListener(eventName, fn, (capture));\r
- }\r
- return fn;\r
- };\r
- } else if (win.attachEvent) {\r
- ret = function(el, eventName, fn, capture) {\r
- el.attachEvent("on" + eventName, fn);\r
- return fn;\r
- };\r
- } else {\r
- ret = function(){};\r
- }\r
- return ret;\r
- }(), \r
- // private\r
- doRemove = function(){\r
- var ret;\r
- if (win.removeEventListener) {\r
- ret = function (el, eventName, fn, capture) {\r
- if (eventName == 'mouseenter') {\r
- eventName = MOUSEOVER;\r
- } else if (eventName == 'mouseleave') {\r
- eventName = MOUSEOUT;\r
- } \r
- el.removeEventListener(eventName, fn, (capture));\r
- };\r
- } else if (win.detachEvent) {\r
- ret = function (el, eventName, fn) {\r
- el.detachEvent("on" + eventName, fn);\r
- };\r
- } else {\r
- ret = function(){};\r
- }\r
- return ret;\r
- }(); \r
-\r
- var isXUL = Ext.isGecko ? function(node){ \r
- return Object.prototype.toString.call(node) == '[object XULElement]';\r
- } : function(){};\r
- \r
- var isTextNode = Ext.isGecko ? function(node){\r
- try{\r
- return node.nodeType == 3;\r
- }catch(e) {\r
- return false;\r
- }\r
-\r
- } : function(node){\r
- return node.nodeType == 3;\r
- };\r
- \r
- function checkRelatedTarget(e) {\r
- var related = pub.getRelatedTarget(e);\r
- return !(isXUL(related) || elContains(e.currentTarget,related));\r
- }\r
-\r
- function elContains(parent, child) {\r
- if(parent && parent.firstChild){ \r
- while(child) {\r
- if(child === parent) {\r
- return true;\r
- }\r
- try {\r
- child = child.parentNode;\r
- } catch(e) {\r
- // In FF if you mouseout an text input element\r
- // thats inside a div sometimes it randomly throws\r
- // Permission denied to get property HTMLDivElement.parentNode\r
- // See https://bugzilla.mozilla.org/show_bug.cgi?id=208427\r
- \r
- return false;\r
- } \r
- if(child && (child.nodeType != 1)) {\r
- child = null;\r
- }\r
- }\r
- }\r
- return false;\r
- }\r
-\r
- \r
- // private \r
- function _getCacheIndex(el, eventName, fn) {\r
- var index = -1;\r
- Ext.each(listeners, function (v,i) {\r
- if(v && v[FN] == fn && v[EL] == el && v[TYPE] == eventName) {\r
- index = i;\r
- }\r
- });\r
- return index;\r
- }\r
- \r
- // private\r
- function _tryPreloadAttach() {\r
- var ret = false, \r
- notAvail = [],\r
- element,\r
- tryAgain = !loadComplete || (retryCount > 0); \r
- \r
- if (!locked) {\r
- locked = true;\r
- \r
- Ext.each(onAvailStack, function (v,i,a){\r
- if(v && (element = doc.getElementById(v.id))){\r
- if(!v.checkReady || loadComplete || element.nextSibling || (doc && doc.body)) {\r
- element = v.override ? (v.override === true ? v.obj : v.override) : element;\r
- v.fn.call(element, v.obj);\r
- onAvailStack[i] = null;\r
- } else {\r
- notAvail.push(v);\r
- }\r
- } \r
- });\r
-\r
- retryCount = (notAvail.length === 0) ? 0 : retryCount - 1;\r
-\r
- if (tryAgain) { \r
- startInterval();\r
- } else {\r
- clearInterval(_interval);\r
- _interval = null;\r
- }\r
-\r
- ret = !(locked = false);\r
- }\r
- return ret;\r
- }\r
- \r
- // private \r
- function startInterval() { \r
- if(!_interval){ \r
- var callback = function() {\r
- _tryPreloadAttach();\r
- };\r
- _interval = setInterval(callback, POLL_INTERVAL);\r
- }\r
- }\r
- \r
- // private \r
- function getScroll() {\r
- var dd = doc.documentElement, \r
- db = doc.body;\r
- if(dd && (dd[SCROLLTOP] || dd[SCROLLLEFT])){\r
- return [dd[SCROLLLEFT], dd[SCROLLTOP]];\r
- }else if(db){\r
- return [db[SCROLLLEFT], db[SCROLLTOP]];\r
- }else{\r
- return [0, 0];\r
- }\r
- }\r
- \r
- // private\r
- function getPageCoord (ev, xy) {\r
- ev = ev.browserEvent || ev;\r
- var coord = ev['page' + xy];\r
- if (!coord && coord !== 0) {\r
- coord = ev['client' + xy] || 0;\r
-\r
- if (Ext.isIE) {\r
- coord += getScroll()[xy == "X" ? 0 : 1];\r
- }\r
- }\r
-\r
- return coord;\r
- }\r
-\r
- var pub = {\r
- onAvailable : function(p_id, p_fn, p_obj, p_override) { \r
- onAvailStack.push({ \r
- id: p_id,\r
- fn: p_fn,\r
- obj: p_obj,\r
- override: p_override,\r
- checkReady: false });\r
-\r
- retryCount = POLL_RETRYS;\r
- startInterval();\r
- },\r
-\r
-\r
- addListener: function(el, eventName, fn) {\r
- var ret; \r
- el = Ext.getDom(el); \r
- if (el && fn) {\r
- if (UNLOAD == eventName) {\r
- ret = !!(unloadListeners[unloadListeners.length] = [el, eventName, fn]); \r
- } else {\r
- listeners.push([el, eventName, fn, ret = doAdd(el, eventName, fn, false)]);\r
- }\r
- }\r
- return !!ret;\r
- },\r
-\r
- removeListener: function(el, eventName, fn) {\r
- var ret = false,\r
- index, \r
- cacheItem;\r
-\r
- el = Ext.getDom(el);\r
-\r
- if(!fn) { \r
- ret = this.purgeElement(el, false, eventName);\r
- } else if (UNLOAD == eventName) { \r
- Ext.each(unloadListeners, function(v, i, a) {\r
- if( v && v[0] == el && v[1] == eventName && v[2] == fn) {\r
- unloadListeners.splice(i, 1);\r
- ret = true;\r
- }\r
- });\r
- } else { \r
- index = arguments[3] || _getCacheIndex(el, eventName, fn);\r
- cacheItem = listeners[index];\r
- \r
- if (el && cacheItem) {\r
- doRemove(el, eventName, cacheItem[WFN], false); \r
- cacheItem[WFN] = cacheItem[FN] = null; \r
- listeners.splice(index, 1); \r
- ret = true;\r
- }\r
- }\r
- return ret;\r
- },\r
-\r
- getTarget : function(ev) {\r
- ev = ev.browserEvent || ev; \r
- return this.resolveTextNode(ev.target || ev.srcElement);\r
- },\r
-\r
- resolveTextNode : function(node) {\r
- return node && !isXUL(node) && isTextNode(node) ? node.parentNode : node;\r
- },\r
-\r
- getRelatedTarget : function(ev) {\r
- ev = ev.browserEvent || ev;\r
- return this.resolveTextNode(ev.relatedTarget || \r
- (ev.type == MOUSEOUT ? ev.toElement :\r
- ev.type == MOUSEOVER ? ev.fromElement : null));\r
- },\r
- \r
- getPageX : function(ev) {\r
- return getPageCoord(ev, "X");\r
- },\r
-\r
- getPageY : function(ev) {\r
- return getPageCoord(ev, "Y");\r
- },\r
-\r
-\r
- getXY : function(ev) { \r
- return [this.getPageX(ev), this.getPageY(ev)];\r
- },\r
-\r
-// Is this useful? Removing to save space unless use case exists.\r
-// getTime: function(ev) {\r
-// ev = ev.browserEvent || ev;\r
-// if (!ev.time) {\r
-// var t = new Date().getTime();\r
-// try {\r
-// ev.time = t;\r
-// } catch(ex) {\r
-// return t;\r
-// }\r
-// }\r
-\r
-// return ev.time;\r
-// },\r
-\r
- stopEvent : function(ev) { \r
- this.stopPropagation(ev);\r
- this.preventDefault(ev);\r
- },\r
-\r
- stopPropagation : function(ev) {\r
- ev = ev.browserEvent || ev;\r
- if (ev.stopPropagation) {\r
- ev.stopPropagation();\r
- } else {\r
- ev.cancelBubble = true;\r
- }\r
- },\r
-\r
- preventDefault : function(ev) {\r
- ev = ev.browserEvent || ev;\r
- if (ev.preventDefault) {\r
- ev.preventDefault();\r
- } else {\r
- ev.returnValue = false;\r
- }\r
- },\r
- \r
- getEvent : function(e) {\r
- e = e || win.event;\r
- if (!e) {\r
- var c = this.getEvent.caller;\r
- while (c) {\r
- e = c.arguments[0];\r
- if (e && Event == e.constructor) {\r
- break;\r
- }\r
- c = c.caller;\r
- }\r
- }\r
- return e;\r
- },\r
-\r
- getCharCode : function(ev) {\r
- ev = ev.browserEvent || ev;\r
- return ev.charCode || ev.keyCode || 0;\r
- },\r
-\r
- //clearCache: function() {},\r
-\r
- _load : function(e) {\r
- loadComplete = true;\r
- var EU = Ext.lib.Event; \r
- if (Ext.isIE && e !== true) {\r
- // IE8 complains that _load is null or not an object\r
- // so lets remove self via arguments.callee\r
- doRemove(win, "load", arguments.callee);\r
- }\r
- }, \r
- \r
- purgeElement : function(el, recurse, eventName) {\r
- var me = this;\r
- Ext.each( me.getListeners(el, eventName), function(v){\r
- if(v){\r
- me.removeListener(el, v.type, v.fn);\r
- }\r
- });\r
-\r
- if (recurse && el && el.childNodes) {\r
- Ext.each(el.childNodes, function(v){\r
- me.purgeElement(v, recurse, eventName);\r
- });\r
- }\r
- },\r
-\r
- getListeners : function(el, eventName) {\r
- var me = this,\r
- results = [], \r
- searchLists;\r
-\r
- if (eventName){ \r
- searchLists = eventName == UNLOAD ? unloadListeners : listeners;\r
- }else{\r
- searchLists = listeners.concat(unloadListeners);\r
- }\r
-\r
- Ext.each(searchLists, function(v, i){\r
- if (v && v[EL] == el && (!eventName || eventName == v[TYPE])) {\r
- results.push({\r
- type: v[TYPE],\r
- fn: v[FN],\r
- obj: v[OBJ],\r
- adjust: v[ADJ_SCOPE],\r
- index: i\r
- });\r
- } \r
- }); \r
-\r
- return results.length ? results : null;\r
- },\r
-\r
- _unload : function(e) {\r
- var EU = Ext.lib.Event, \r
- i, \r
- j, \r
- l, \r
- len, \r
- index,\r
- scope;\r
- \r
-\r
- Ext.each(unloadListeners, function(v) {\r
- if (v) {\r
- try{\r
- scope = v[ADJ_SCOPE] ? (v[ADJ_SCOPE] === true ? v[OBJ] : v[ADJ_SCOPE]) : win; \r
- v[FN].call(scope, EU.getEvent(e), v[OBJ]);\r
- }catch(ex){}\r
- } \r
- }); \r
-\r
- unloadListeners = null;\r
-\r
- if(listeners && (j = listeners.length)){ \r
- while(j){ \r
- if((l = listeners[index = --j])){\r
- EU.removeListener(l[EL], l[TYPE], l[FN], index);\r
- } \r
- }\r
- //EU.clearCache();\r
- }\r
-\r
- doRemove(win, UNLOAD, EU._unload);\r
- } \r
- }; \r
- \r
- // Initialize stuff.\r
- pub.on = pub.addListener;\r
- pub.un = pub.removeListener;\r
- if (doc && doc.body) {\r
- pub._load(true);\r
- } else {\r
- doAdd(win, "load", pub._load);\r
- }\r
- doAdd(win, UNLOAD, pub._unload); \r
- _tryPreloadAttach();\r
- \r
- return pub;\r
-}();</pre> \r
-</body>\r
-</html>
\ No newline at end of file
git.ithinksw.org / extjs.git / blobdiff