1 | /*! |
---|
2 | * Ext JS Library 3.4.0 |
---|
3 | * Copyright(c) 2006-2011 Sencha Inc. |
---|
4 | * licensing@sencha.com |
---|
5 | * http://www.sencha.com/license |
---|
6 | */ |
---|
7 | Ext.lib.Event = function() { |
---|
8 | var loadComplete = false, |
---|
9 | unloadListeners = {}, |
---|
10 | retryCount = 0, |
---|
11 | onAvailStack = [], |
---|
12 | _interval, |
---|
13 | locked = false, |
---|
14 | win = window, |
---|
15 | doc = document, |
---|
16 | |
---|
17 | // constants |
---|
18 | POLL_RETRYS = 200, |
---|
19 | POLL_INTERVAL = 20, |
---|
20 | TYPE = 0, |
---|
21 | FN = 1, |
---|
22 | OBJ = 2, |
---|
23 | ADJ_SCOPE = 3, |
---|
24 | SCROLLLEFT = 'scrollLeft', |
---|
25 | SCROLLTOP = 'scrollTop', |
---|
26 | UNLOAD = 'unload', |
---|
27 | MOUSEOVER = 'mouseover', |
---|
28 | MOUSEOUT = 'mouseout', |
---|
29 | // private |
---|
30 | doAdd = function() { |
---|
31 | var ret; |
---|
32 | if (win.addEventListener) { |
---|
33 | ret = function(el, eventName, fn, capture) { |
---|
34 | if (eventName == 'mouseenter') { |
---|
35 | fn = fn.createInterceptor(checkRelatedTarget); |
---|
36 | el.addEventListener(MOUSEOVER, fn, (capture)); |
---|
37 | } else if (eventName == 'mouseleave') { |
---|
38 | fn = fn.createInterceptor(checkRelatedTarget); |
---|
39 | el.addEventListener(MOUSEOUT, fn, (capture)); |
---|
40 | } else { |
---|
41 | el.addEventListener(eventName, fn, (capture)); |
---|
42 | } |
---|
43 | return fn; |
---|
44 | }; |
---|
45 | } else if (win.attachEvent) { |
---|
46 | ret = function(el, eventName, fn, capture) { |
---|
47 | el.attachEvent("on" + eventName, fn); |
---|
48 | return fn; |
---|
49 | }; |
---|
50 | } else { |
---|
51 | ret = function(){}; |
---|
52 | } |
---|
53 | return ret; |
---|
54 | }(), |
---|
55 | // private |
---|
56 | doRemove = function(){ |
---|
57 | var ret; |
---|
58 | if (win.removeEventListener) { |
---|
59 | ret = function (el, eventName, fn, capture) { |
---|
60 | if (eventName == 'mouseenter') { |
---|
61 | eventName = MOUSEOVER; |
---|
62 | } else if (eventName == 'mouseleave') { |
---|
63 | eventName = MOUSEOUT; |
---|
64 | } |
---|
65 | el.removeEventListener(eventName, fn, (capture)); |
---|
66 | }; |
---|
67 | } else if (win.detachEvent) { |
---|
68 | ret = function (el, eventName, fn) { |
---|
69 | el.detachEvent("on" + eventName, fn); |
---|
70 | }; |
---|
71 | } else { |
---|
72 | ret = function(){}; |
---|
73 | } |
---|
74 | return ret; |
---|
75 | }(); |
---|
76 | |
---|
77 | function checkRelatedTarget(e) { |
---|
78 | return !elContains(e.currentTarget, pub.getRelatedTarget(e)); |
---|
79 | } |
---|
80 | |
---|
81 | function elContains(parent, child) { |
---|
82 | if(parent && parent.firstChild){ |
---|
83 | while(child) { |
---|
84 | if(child === parent) { |
---|
85 | return true; |
---|
86 | } |
---|
87 | child = child.parentNode; |
---|
88 | if(child && (child.nodeType != 1)) { |
---|
89 | child = null; |
---|
90 | } |
---|
91 | } |
---|
92 | } |
---|
93 | return false; |
---|
94 | } |
---|
95 | |
---|
96 | // private |
---|
97 | function _tryPreloadAttach() { |
---|
98 | var ret = false, |
---|
99 | notAvail = [], |
---|
100 | element, i, v, override, |
---|
101 | tryAgain = !loadComplete || (retryCount > 0); |
---|
102 | |
---|
103 | if(!locked){ |
---|
104 | locked = true; |
---|
105 | |
---|
106 | for(i = 0; i < onAvailStack.length; ++i){ |
---|
107 | v = onAvailStack[i]; |
---|
108 | if(v && (element = doc.getElementById(v.id))){ |
---|
109 | if(!v.checkReady || loadComplete || element.nextSibling || (doc && doc.body)) { |
---|
110 | override = v.override; |
---|
111 | element = override ? (override === true ? v.obj : override) : element; |
---|
112 | v.fn.call(element, v.obj); |
---|
113 | onAvailStack.remove(v); |
---|
114 | --i; |
---|
115 | }else{ |
---|
116 | notAvail.push(v); |
---|
117 | } |
---|
118 | } |
---|
119 | } |
---|
120 | |
---|
121 | retryCount = (notAvail.length === 0) ? 0 : retryCount - 1; |
---|
122 | |
---|
123 | if (tryAgain) { |
---|
124 | startInterval(); |
---|
125 | } else { |
---|
126 | clearInterval(_interval); |
---|
127 | _interval = null; |
---|
128 | } |
---|
129 | ret = !(locked = false); |
---|
130 | } |
---|
131 | return ret; |
---|
132 | } |
---|
133 | |
---|
134 | // private |
---|
135 | function startInterval() { |
---|
136 | if(!_interval){ |
---|
137 | var callback = function() { |
---|
138 | _tryPreloadAttach(); |
---|
139 | }; |
---|
140 | _interval = setInterval(callback, POLL_INTERVAL); |
---|
141 | } |
---|
142 | } |
---|
143 | |
---|
144 | // private |
---|
145 | function getScroll() { |
---|
146 | var dd = doc.documentElement, |
---|
147 | db = doc.body; |
---|
148 | if(dd && (dd[SCROLLTOP] || dd[SCROLLLEFT])){ |
---|
149 | return [dd[SCROLLLEFT], dd[SCROLLTOP]]; |
---|
150 | }else if(db){ |
---|
151 | return [db[SCROLLLEFT], db[SCROLLTOP]]; |
---|
152 | }else{ |
---|
153 | return [0, 0]; |
---|
154 | } |
---|
155 | } |
---|
156 | |
---|
157 | // private |
---|
158 | function getPageCoord (ev, xy) { |
---|
159 | ev = ev.browserEvent || ev; |
---|
160 | var coord = ev['page' + xy]; |
---|
161 | if (!coord && coord !== 0) { |
---|
162 | coord = ev['client' + xy] || 0; |
---|
163 | |
---|
164 | if (Ext.isIE) { |
---|
165 | coord += getScroll()[xy == "X" ? 0 : 1]; |
---|
166 | } |
---|
167 | } |
---|
168 | |
---|
169 | return coord; |
---|
170 | } |
---|
171 | |
---|
172 | var pub = { |
---|
173 | extAdapter: true, |
---|
174 | onAvailable : function(p_id, p_fn, p_obj, p_override) { |
---|
175 | onAvailStack.push({ |
---|
176 | id: p_id, |
---|
177 | fn: p_fn, |
---|
178 | obj: p_obj, |
---|
179 | override: p_override, |
---|
180 | checkReady: false }); |
---|
181 | |
---|
182 | retryCount = POLL_RETRYS; |
---|
183 | startInterval(); |
---|
184 | }, |
---|
185 | |
---|
186 | // This function should ALWAYS be called from Ext.EventManager |
---|
187 | addListener: function(el, eventName, fn) { |
---|
188 | el = Ext.getDom(el); |
---|
189 | if (el && fn) { |
---|
190 | if (eventName == UNLOAD) { |
---|
191 | if (unloadListeners[el.id] === undefined) { |
---|
192 | unloadListeners[el.id] = []; |
---|
193 | } |
---|
194 | unloadListeners[el.id].push([eventName, fn]); |
---|
195 | return fn; |
---|
196 | } |
---|
197 | return doAdd(el, eventName, fn, false); |
---|
198 | } |
---|
199 | return false; |
---|
200 | }, |
---|
201 | |
---|
202 | // This function should ALWAYS be called from Ext.EventManager |
---|
203 | removeListener: function(el, eventName, fn) { |
---|
204 | el = Ext.getDom(el); |
---|
205 | var i, len, li, lis; |
---|
206 | if (el && fn) { |
---|
207 | if(eventName == UNLOAD){ |
---|
208 | if((lis = unloadListeners[el.id]) !== undefined){ |
---|
209 | for(i = 0, len = lis.length; i < len; i++){ |
---|
210 | if((li = lis[i]) && li[TYPE] == eventName && li[FN] == fn){ |
---|
211 | unloadListeners[el.id].splice(i, 1); |
---|
212 | } |
---|
213 | } |
---|
214 | } |
---|
215 | return; |
---|
216 | } |
---|
217 | doRemove(el, eventName, fn, false); |
---|
218 | } |
---|
219 | }, |
---|
220 | |
---|
221 | getTarget : function(ev) { |
---|
222 | ev = ev.browserEvent || ev; |
---|
223 | return this.resolveTextNode(ev.target || ev.srcElement); |
---|
224 | }, |
---|
225 | |
---|
226 | resolveTextNode : Ext.isGecko ? function(node){ |
---|
227 | if(!node){ |
---|
228 | return; |
---|
229 | } |
---|
230 | // work around firefox bug, https://bugzilla.mozilla.org/show_bug.cgi?id=101197 |
---|
231 | var s = HTMLElement.prototype.toString.call(node); |
---|
232 | if(s == '[xpconnect wrapped native prototype]' || s == '[object XULElement]'){ |
---|
233 | return; |
---|
234 | } |
---|
235 | return node.nodeType == 3 ? node.parentNode : node; |
---|
236 | } : function(node){ |
---|
237 | return node && node.nodeType == 3 ? node.parentNode : node; |
---|
238 | }, |
---|
239 | |
---|
240 | getRelatedTarget : function(ev) { |
---|
241 | ev = ev.browserEvent || ev; |
---|
242 | return this.resolveTextNode(ev.relatedTarget || |
---|
243 | (/(mouseout|mouseleave)/.test(ev.type) ? ev.toElement : |
---|
244 | /(mouseover|mouseenter)/.test(ev.type) ? ev.fromElement : null)); |
---|
245 | }, |
---|
246 | |
---|
247 | getPageX : function(ev) { |
---|
248 | return getPageCoord(ev, "X"); |
---|
249 | }, |
---|
250 | |
---|
251 | getPageY : function(ev) { |
---|
252 | return getPageCoord(ev, "Y"); |
---|
253 | }, |
---|
254 | |
---|
255 | |
---|
256 | getXY : function(ev) { |
---|
257 | return [this.getPageX(ev), this.getPageY(ev)]; |
---|
258 | }, |
---|
259 | |
---|
260 | stopEvent : function(ev) { |
---|
261 | this.stopPropagation(ev); |
---|
262 | this.preventDefault(ev); |
---|
263 | }, |
---|
264 | |
---|
265 | stopPropagation : function(ev) { |
---|
266 | ev = ev.browserEvent || ev; |
---|
267 | if (ev.stopPropagation) { |
---|
268 | ev.stopPropagation(); |
---|
269 | } else { |
---|
270 | ev.cancelBubble = true; |
---|
271 | } |
---|
272 | }, |
---|
273 | |
---|
274 | preventDefault : function(ev) { |
---|
275 | ev = ev.browserEvent || ev; |
---|
276 | if (ev.preventDefault) { |
---|
277 | ev.preventDefault(); |
---|
278 | } else { |
---|
279 | if (ev.keyCode) { |
---|
280 | ev.keyCode = 0; |
---|
281 | } |
---|
282 | ev.returnValue = false; |
---|
283 | } |
---|
284 | }, |
---|
285 | |
---|
286 | getEvent : function(e) { |
---|
287 | e = e || win.event; |
---|
288 | if (!e) { |
---|
289 | var c = this.getEvent.caller; |
---|
290 | while (c) { |
---|
291 | e = c.arguments[0]; |
---|
292 | if (e && Event == e.constructor) { |
---|
293 | break; |
---|
294 | } |
---|
295 | c = c.caller; |
---|
296 | } |
---|
297 | } |
---|
298 | return e; |
---|
299 | }, |
---|
300 | |
---|
301 | getCharCode : function(ev) { |
---|
302 | ev = ev.browserEvent || ev; |
---|
303 | return ev.charCode || ev.keyCode || 0; |
---|
304 | }, |
---|
305 | |
---|
306 | //clearCache: function() {}, |
---|
307 | // deprecated, call from EventManager |
---|
308 | getListeners : function(el, eventName) { |
---|
309 | Ext.EventManager.getListeners(el, eventName); |
---|
310 | }, |
---|
311 | |
---|
312 | // deprecated, call from EventManager |
---|
313 | purgeElement : function(el, recurse, eventName) { |
---|
314 | Ext.EventManager.purgeElement(el, recurse, eventName); |
---|
315 | }, |
---|
316 | |
---|
317 | _load : function(e) { |
---|
318 | loadComplete = true; |
---|
319 | |
---|
320 | if (Ext.isIE && e !== true) { |
---|
321 | // IE8 complains that _load is null or not an object |
---|
322 | // so lets remove self via arguments.callee |
---|
323 | doRemove(win, "load", arguments.callee); |
---|
324 | } |
---|
325 | }, |
---|
326 | |
---|
327 | _unload : function(e) { |
---|
328 | var EU = Ext.lib.Event, |
---|
329 | i, v, ul, id, len, scope; |
---|
330 | |
---|
331 | for (id in unloadListeners) { |
---|
332 | ul = unloadListeners[id]; |
---|
333 | for (i = 0, len = ul.length; i < len; i++) { |
---|
334 | v = ul[i]; |
---|
335 | if (v) { |
---|
336 | try{ |
---|
337 | scope = v[ADJ_SCOPE] ? (v[ADJ_SCOPE] === true ? v[OBJ] : v[ADJ_SCOPE]) : win; |
---|
338 | v[FN].call(scope, EU.getEvent(e), v[OBJ]); |
---|
339 | }catch(ex){} |
---|
340 | } |
---|
341 | } |
---|
342 | }; |
---|
343 | |
---|
344 | Ext.EventManager._unload(); |
---|
345 | |
---|
346 | doRemove(win, UNLOAD, EU._unload); |
---|
347 | } |
---|
348 | }; |
---|
349 | |
---|
350 | // Initialize stuff. |
---|
351 | pub.on = pub.addListener; |
---|
352 | pub.un = pub.removeListener; |
---|
353 | if (doc && doc.body) { |
---|
354 | pub._load(true); |
---|
355 | } else { |
---|
356 | doAdd(win, "load", pub._load); |
---|
357 | } |
---|
358 | doAdd(win, UNLOAD, pub._unload); |
---|
359 | _tryPreloadAttach(); |
---|
360 | |
---|
361 | return pub; |
---|
362 | }(); |
---|