X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/2e847cf21b8ab9d15fa167b315ca5b2fa92638fc..6a7e4474cba9d8be4b2ec445e10f1691f7277c50:/src/ext-core/src/adapter/ext-base-event.js

diff --git a/src/ext-core/src/adapter/ext-base-event.js b/src/ext-core/src/adapter/ext-base-event.js
new file mode 100644
index 00000000..8062ae86
--- /dev/null
+++ b/src/ext-core/src/adapter/ext-base-event.js
@@ -0,0 +1,361 @@
+/*!
+ * Ext JS Library 3.2.0
+ * Copyright(c) 2006-2010 Ext JS, Inc.
+ * licensing@extjs.com
+ * http://www.extjs.com/license
+ */
+Ext.lib.Event = function() {
+    var loadComplete = false,
+        unloadListeners = {},
+        retryCount = 0,
+        onAvailStack = [],
+        _interval,
+        locked = false,
+        win = window,
+        doc = document,
+
+        // constants
+        POLL_RETRYS = 200,
+        POLL_INTERVAL = 20,
+        EL = 0,
+        TYPE = 0,
+        FN = 1,
+        WFN = 2,
+        OBJ = 2,
+        ADJ_SCOPE = 3,
+        SCROLLLEFT = 'scrollLeft',
+        SCROLLTOP = 'scrollTop',
+        UNLOAD = 'unload',
+        MOUSEOVER = 'mouseover',
+        MOUSEOUT = 'mouseout',
+        // private
+        doAdd = function() {
+            var ret;
+            if (win.addEventListener) {
+                ret = function(el, eventName, fn, capture) {
+                    if (eventName == 'mouseenter') {
+                        fn = fn.createInterceptor(checkRelatedTarget);
+                        el.addEventListener(MOUSEOVER, fn, (capture));
+                    } else if (eventName == 'mouseleave') {
+                        fn = fn.createInterceptor(checkRelatedTarget);
+                        el.addEventListener(MOUSEOUT, fn, (capture));
+                    } else {
+                        el.addEventListener(eventName, fn, (capture));
+                    }
+                    return fn;
+                };
+            } else if (win.attachEvent) {
+                ret = function(el, eventName, fn, capture) {
+                    el.attachEvent("on" + eventName, fn);
+                    return fn;
+                };
+            } else {
+                ret = function(){};
+            }
+            return ret;
+        }(),
+        // private
+        doRemove = function(){
+            var ret;
+            if (win.removeEventListener) {
+                ret = function (el, eventName, fn, capture) {
+                    if (eventName == 'mouseenter') {
+                        eventName = MOUSEOVER;
+                    } else if (eventName == 'mouseleave') {
+                        eventName = MOUSEOUT;
+                    }
+                    el.removeEventListener(eventName, fn, (capture));
+                };
+            } else if (win.detachEvent) {
+                ret = function (el, eventName, fn) {
+                    el.detachEvent("on" + eventName, fn);
+                };
+            } else {
+                ret = function(){};
+            }
+            return ret;
+        }();
+
+    function checkRelatedTarget(e) {
+        return !elContains(e.currentTarget, pub.getRelatedTarget(e));
+    }
+
+    function elContains(parent, child) {
+       if(parent && parent.firstChild){
+         while(child) {
+            if(child === parent) {
+                return true;
+            }
+            child = child.parentNode;
+            if(child && (child.nodeType != 1)) {
+                child = null;
+            }
+          }
+        }
+        return false;
+    }
+
+    // private
+    function _tryPreloadAttach() {
+        var ret = false,
+            notAvail = [],
+            element, i, len, v,
+            tryAgain = !loadComplete || (retryCount > 0);
+
+        if (!locked) {
+            locked = true;
+
+            for (i = 0, len = onAvailStack.length; i < len; i++) {
+                v = onAvailStack[i];
+                if(v && (element = doc.getElementById(v.id))){
+                    if(!v.checkReady || loadComplete || element.nextSibling || (doc && doc.body)) {
+                        element = v.override ? (v.override === true ? v.obj : v.override) : element;
+                        v.fn.call(element, v.obj);
+                        onAvailStack.remove(v);
+                    } else {
+                        notAvail.push(v);
+                    }
+                }
+            }
+
+            retryCount = (notAvail.length === 0) ? 0 : retryCount - 1;
+
+            if (tryAgain) {
+                startInterval();
+            } else {
+                clearInterval(_interval);
+                _interval = null;
+            }
+
+            ret = !(locked = false);
+        }
+        return ret;
+    }
+
+    // private
+    function startInterval() {
+        if(!_interval){
+            var callback = function() {
+                _tryPreloadAttach();
+            };
+            _interval = setInterval(callback, POLL_INTERVAL);
+        }
+    }
+
+    // private
+    function getScroll() {
+        var dd = doc.documentElement,
+            db = doc.body;
+        if(dd && (dd[SCROLLTOP] || dd[SCROLLLEFT])){
+            return [dd[SCROLLLEFT], dd[SCROLLTOP]];
+        }else if(db){
+            return [db[SCROLLLEFT], db[SCROLLTOP]];
+        }else{
+            return [0, 0];
+        }
+    }
+
+    // private
+    function getPageCoord (ev, xy) {
+        ev = ev.browserEvent || ev;
+        var coord  = ev['page' + xy];
+        if (!coord && coord !== 0) {
+            coord = ev['client' + xy] || 0;
+
+            if (Ext.isIE) {
+                coord += getScroll()[xy == "X" ? 0 : 1];
+            }
+        }
+
+        return coord;
+    }
+
+    var pub =  {
+        extAdapter: true,
+        onAvailable : function(p_id, p_fn, p_obj, p_override) {
+            onAvailStack.push({
+                id:         p_id,
+                fn:         p_fn,
+                obj:        p_obj,
+                override:   p_override,
+                checkReady: false });
+
+            retryCount = POLL_RETRYS;
+            startInterval();
+        },
+
+        // This function should ALWAYS be called from Ext.EventManager
+        addListener: function(el, eventName, fn) {
+            el = Ext.getDom(el);
+            if (el && fn) {
+                if (eventName == UNLOAD) {
+                    if (unloadListeners[el.id] === undefined) {
+                        unloadListeners[el.id] = [];
+                    }
+                    unloadListeners[el.id].push([eventName, fn]);
+                    return fn;
+                }
+                return doAdd(el, eventName, fn, false);
+            }
+            return false;
+        },
+
+        // This function should ALWAYS be called from Ext.EventManager
+        removeListener: function(el, eventName, fn) {
+            el = Ext.getDom(el);
+            var i, len, li, lis;
+            if (el && fn) {
+                if(eventName == UNLOAD){
+                    if((lis = unloadListeners[el.id]) !== undefined){
+                        for(i = 0, len = lis.length; i < len; i++){
+                            if((li = lis[i]) && li[TYPE] == eventName && li[FN] == fn){
+                                unloadListeners[el.id].splice(i, 1);
+                            }
+                        }
+                    }
+                    return;
+                }
+                doRemove(el, eventName, fn, false);
+            }
+        },
+
+        getTarget : function(ev) {
+            ev = ev.browserEvent || ev;
+            return this.resolveTextNode(ev.target || ev.srcElement);
+        },
+
+        resolveTextNode : Ext.isGecko ? function(node){
+            if(!node){
+                return;
+            }
+            // work around firefox bug, https://bugzilla.mozilla.org/show_bug.cgi?id=101197
+            var s = HTMLElement.prototype.toString.call(node);
+            if(s == '[xpconnect wrapped native prototype]' || s == '[object XULElement]'){
+                return;
+            }
+            return node.nodeType == 3 ? node.parentNode : node;
+        } : function(node){
+            return node && node.nodeType == 3 ? node.parentNode : node;
+        },
+
+        getRelatedTarget : function(ev) {
+            ev = ev.browserEvent || ev;
+            return this.resolveTextNode(ev.relatedTarget ||
+                    (ev.type == MOUSEOUT ? ev.toElement :
+                     ev.type == MOUSEOVER ? ev.fromElement : null));
+        },
+
+        getPageX : function(ev) {
+            return getPageCoord(ev, "X");
+        },
+
+        getPageY : function(ev) {
+            return getPageCoord(ev, "Y");
+        },
+
+
+        getXY : function(ev) {
+            return [this.getPageX(ev), this.getPageY(ev)];
+        },
+
+        stopEvent : function(ev) {
+            this.stopPropagation(ev);
+            this.preventDefault(ev);
+        },
+
+        stopPropagation : function(ev) {
+            ev = ev.browserEvent || ev;
+            if (ev.stopPropagation) {
+                ev.stopPropagation();
+            } else {
+                ev.cancelBubble = true;
+            }
+        },
+
+        preventDefault : function(ev) {
+            ev = ev.browserEvent || ev;
+            if (ev.preventDefault) {
+                ev.preventDefault();
+            } else {
+                ev.returnValue = false;
+            }
+        },
+
+        getEvent : function(e) {
+            e = e || win.event;
+            if (!e) {
+                var c = this.getEvent.caller;
+                while (c) {
+                    e = c.arguments[0];
+                    if (e && Event == e.constructor) {
+                        break;
+                    }
+                    c = c.caller;
+                }
+            }
+            return e;
+        },
+
+        getCharCode : function(ev) {
+            ev = ev.browserEvent || ev;
+            return ev.charCode || ev.keyCode || 0;
+        },
+
+        //clearCache: function() {},
+        // deprecated, call from EventManager
+        getListeners : function(el, eventName) {
+            Ext.EventManager.getListeners(el, eventName);
+        },
+
+        // deprecated, call from EventManager
+        purgeElement : function(el, recurse, eventName) {
+            Ext.EventManager.purgeElement(el, recurse, eventName);
+        },
+
+        _load : function(e) {
+            loadComplete = true;
+            var EU = Ext.lib.Event;
+            if (Ext.isIE && e !== true) {
+        // IE8 complains that _load is null or not an object
+        // so lets remove self via arguments.callee
+                doRemove(win, "load", arguments.callee);
+            }
+        },
+
+        _unload : function(e) {
+             var EU = Ext.lib.Event,
+                i, j, l, v, ul, id, len, index, scope;
+
+
+            for (id in unloadListeners) {
+                ul = unloadListeners[id];
+                for (i = 0, len = ul.length; i < len; i++) {
+                    v = ul[i];
+                    if (v) {
+                        try{
+                            scope = v[ADJ_SCOPE] ? (v[ADJ_SCOPE] === true ? v[OBJ] : v[ADJ_SCOPE]) :  win;
+                            v[FN].call(scope, EU.getEvent(e), v[OBJ]);
+                        }catch(ex){}
+                    }
+                }
+            };
+
+            Ext.EventManager._unload();
+
+            doRemove(win, UNLOAD, EU._unload);
+        }
+    };
+
+    // Initialize stuff.
+    pub.on = pub.addListener;
+    pub.un = pub.removeListener;
+    if (doc && doc.body) {
+        pub._load(true);
+    } else {
+        doAdd(win, "load", pub._load);
+    }
+    doAdd(win, UNLOAD, pub._unload);
+    _tryPreloadAttach();
+
+    return pub;
+}();