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joko |
1.1 |
/* cbe_event.js $Revision: 0.15 $ |
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* CBE v4.19, Cross-Browser DHTML API from Cross-Browser.com |
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* Copyright (c) 2002 Michael Foster (mike@cross-browser.com) |
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* Distributed under the terms of the GNU LGPL from gnu.org |
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*/ |
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function cbeELReg(eventType, eventListener, eventCapture, listenerObject) { // event listener registration object constructor |
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this.type = eventType; this.listener = eventListener; this.capture = eventCapture; this.obj = listenerObject; |
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} |
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function CrossBrowserEvent(e) { // Object constructor |
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// from DOM2 Interface Event |
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this.type = ""; |
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this.target = null; |
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this.currentTarget = null; |
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this.eventPhase = 0; |
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this.bubbles = true; |
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this.cancelable = true; |
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this.timeStamp = 0; |
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this.AT_TARGET = 1; this.BUBBLING_PHASE = 2; this.CAPTURING_PHASE = 3; // eventPhase masks |
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// from DOM2 Interface MouseEvent : UIEvent |
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this.screenX = 0; |
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this.screenY = 0; |
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this.clientX = 0; |
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this.clientY = 0; |
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this.ctrlKey = false; |
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this.shiftKey = false; |
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this.altKey = false; |
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this.metaKey = false; |
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this.button = 3; // 3 == undefined |
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this.relatedTarget = null; |
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this.LEFT = 0; this.MIDDLE = 1; this.RIGHT = 2; // button masks |
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// from IE4 Object Model |
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this.keyCode = 0; |
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this.offsetX = 0; |
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this.offsetY = 0; |
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// from NN4 Object Model |
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this.pageX = 0; |
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this.pageY = 0; |
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// CBE |
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this.stopPropagationFlag = false; |
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this.preventDefaultFlag = false; |
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this.cbeTarget = window.cbe; |
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this.cbeCurrentTarget = window.cbe; |
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if (!e) return; |
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if (e.type) { this.type = e.type; } |
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if (e.target) { this.target = e.target; } |
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else if (e.srcElement) { this.target = e.srcElement; } |
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if (e.currentTarget) { this.currentTarget = e.currentTarget; } |
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else if (e.toElement) { this.currentTarget = e.toElement; } |
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if (e.eventPhase) { this.eventPhase = e.eventPhase; } |
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if (e.bubbles) { this.bubbles = e.bubbles; } |
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if (e.cancelable) { this.cancelable = e.cancelable; } |
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if (e.timeStamp) { this.timeStamp = e.timeStamp; } |
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if (e.screenX) { this.screenX = e.screenX; } |
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if (e.screenY) { this.screenY = e.screenY; } |
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if (is.opera5or6) { this.clientX = e.clientX - document.cbe.scrollLeft(); } |
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else if (e.clientX) { this.clientX = e.clientX; } |
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else if (e.pageX) { this.clientX = e.pageX - document.cbe.scrollLeft(); } |
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if (is.opera5or6) { this.clientY = e.clientY - document.cbe.scrollLeft(); } |
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else if (e.clientY) { this.clientY = e.clientY; } |
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else if (e.pageY) { this.clientY = e.pageY - document.cbe.scrollLeft(); } |
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if (is.opera5or6) { this.ctrlKey = e.type=='mousemove' ? e.shiftKey : e.ctrlKey; } |
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else if (_def(e.ctrlKey)) { this.ctrlKey = e.ctrlKey; } |
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else if (_def(e.modifiers) && window.Event) { this.ctrlKey = (e.modifiers & window.Event.CONTROL_MASK) != 0; } |
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if (is.opera5or6) { this.shiftKey = e.type=='mousemove' ? e.ctrlKey : e.shiftKey; } |
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else if (_def(e.shiftKey)) { this.shiftKey = e.shiftKey; } |
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else if (_def(e.modifiers) && window.Event) { this.shiftKey = (e.modifiers & Event.SHIFT_MASK) != 0; } |
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if (e.altKey) { this.altKey = e.altKey; } |
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else if (_def(e.modifiers) && window.Event) { this.altKey = (e.modifiers & Event.ALT_MASK) != 0; } |
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if (e.metaKey) { this.metaKey = e.metaKey; } |
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// button (?) |
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if (is.ie) { |
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if (this.type.indexOf('mouse') != -1) { |
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if (e.button == 1) this.button = this.LEFT; |
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else if (e.button == 4) this.button = this.MIDDLE; |
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else if (e.button == 2) this.button = this.RIGHT; |
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} |
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else if (this.type == 'click') this.button = this.LEFT; |
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else this.button = 4; // non-mouse event |
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} |
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else if (_def(e.button)) { // standard |
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if (this.type.indexOf('mouse') != -1) { this.button = e.button; if (this.button < 0 || this.button > 2) {this.button = 3;} } |
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else if (this.type == 'click') this.button = this.LEFT; |
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else this.button = 4; // non-mouse event |
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} |
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else if (_def(e.which)) { |
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if (document.layers) { // nn4 |
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if (this.type.indexOf('mouse') != -1) { this.button = e.which - 1; if (this.button < 0 || this.button > 2) {this.button = 3;} } |
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else if (this.type == 'click') this.button = this.LEFT; |
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else this.button = 4; // non-mouse event |
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} |
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else { // opera5or6 |
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if ((e.type == 'click' && e.which == 0) || ((e.type == 'mousedown' || e.type == 'mouseup') && e.which == 1)) {this.button = this.LEFT;} |
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} |
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} |
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if (e.relatedTarget) { this.relatedTarget = e.relatedTarget; } |
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else if (e.fromElement) { this.relatedTarget = e.fromElement; } // ? may need to be toElement in some cases ? |
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if (_def(e.which)) { this.keyCode = e.which; } |
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else if (_def(e.keyCode)) { this.keyCode = e.keyCode; } |
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var calcOfs = false; |
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if (_def(e.layerX,e.layerY)) { this.offsetX = e.layerX; this.offsetY = e.layerY; } |
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else calcOfs = true; // calculate it below |
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if (is.opera5or6) { this.pageX = e.clientX; this.pageY = e.clientY; } |
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else if (_def(e.pageX,e.pageY)) { this.pageX = e.pageX; this.pageY = e.pageY; } |
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else { |
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this.pageX = this.clientX + document.cbe.scrollLeft(); |
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this.pageY = this.clientY + document.cbe.scrollTop(); |
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} |
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// Find the CBE event target |
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if (document.layers) { |
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this.cbeTarget = cbeGetNodeFromPoint(this.pageX, this.pageY); |
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// NN4 note: mouseout works only if mouseover and mouseout are both added to the same object |
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if (this.type == 'mouseover') cbeMOT = this.cbeTarget; |
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else if (this.type == 'mouseout') this.cbeTarget = cbeMOT || document.cbe; |
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} |
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else { var target = this.target; while (!target.cbe) {target = cbeGetParentElement(target);} this.cbeTarget = target.cbe; } |
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this.cbeCurrentTarget = this.cbeTarget; |
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if (calcOfs) { this.offsetX = this.pageX - this.cbeTarget.pageX(); this.offsetY = this.pageY - this.cbeTarget.pageY(); } |
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} |
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CrossBrowserElement.prototype.addEventListener = function(eventType, eventListener, useCapture, listenerObject) { |
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if (!useCapture) useCapture = false; |
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eventType = eventType.toLowerCase(); |
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if ( |
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(eventType.indexOf('mouse') != -1) |
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|| eventType == 'click' |
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|| (eventType.indexOf('key') != -1) |
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/* || (eventType.indexOf('resize') != -1 && !is.nav4 && !is.opera) |
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|| (eventType.indexOf('scroll') != -1 && !is.nav && !is.opera) */ |
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) { |
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var add=true; |
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for (var i=0; i < this.listeners.length; ++i) { if (eventType == this.listeners[i].type) {add=false; break;} } |
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if (add) { |
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cbeNativeAddEventListener(this.ele, eventType, cbePropagateEvent, false); |
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} |
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this.listeners[this.listeners.length] = new cbeELReg(eventType, eventListener, useCapture, listenerObject); |
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return; |
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} |
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switch(eventType) { |
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case 'slidestart': this.onslidestart = eventListener; return; |
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case 'slide': this.onslide = eventListener; return; |
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case 'slideend': this.onslideend = eventListener; return; |
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case 'dragstart': this.ondragstart = eventListener; return; |
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case 'drag': |
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this.ondragCapture = useCapture; |
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this.ondrag = eventListener; |
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this.addEventListener('mousedown', cbeDragStartEvent, useCapture); |
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return; |
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case 'dragend': this.ondragend = eventListener; return; |
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case 'dragresize': if (window.cbeUtilJsLoaded) cbeAddDragResizeListener(this); return; |
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case 'scroll': |
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if (is.nav || is.opera) { |
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window.cbeOldScrollTop = cbePageYOffset(); |
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window.cbeOnScrollListener = eventListener; |
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cbeScrollEvent(); |
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return; |
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} |
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break; |
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case 'resize': |
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if (is.nav4 || is.opera) { |
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window.cbeOldWidth = cbeInnerWidth(); |
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window.cbeOldHeight = cbeInnerHeight(); |
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window.cbeOnResizeListener = eventListener; |
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cbeResizeEvent(); |
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return; |
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} |
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break; |
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} // end switch |
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cbeNativeAddEventListener(this.ele, eventType, eventListener, useCapture); |
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} |
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function cbeNativeAddEventListener(ele, eventType, eventListener, useCapture) { |
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if (!useCapture) useCapture = false; |
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eventType = eventType.toLowerCase(); |
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var eh = "ele.on" + eventType + "=eventListener"; |
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if (ele.addEventListener) { |
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ele.addEventListener(eventType, eventListener, useCapture); |
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} |
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else if (ele.captureEvents) { |
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// if (useCapture || (eventType.indexOf('mousemove')!=-1)) // ??? |
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ele.captureEvents(eval("Event." + eventType.toUpperCase())); |
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eval(eh); |
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} |
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else { eval(eh); } |
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} |
| 190 |
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function cbeNativeRemoveEventListener(ele, eventType, eventListener, useCapture) { |
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if (!useCapture) useCapture = false; |
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eventType = eventType.toLowerCase(); |
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var eh = "ele.on" + eventType + "=null"; |
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if (ele.removeEventListener) { |
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ele.removeEventListener(eventType, eventListener, useCapture); |
| 196 |
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} |
| 197 |
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else if (ele.releaseEvents) { |
| 198 |
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// if (useCapture || (eventType.indexOf('mousemove')!=-1)) // ??? |
| 199 |
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ele.releaseEvents(eval("Event." + eventType.toUpperCase())); |
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eval(eh); |
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} |
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else { eval(eh); } |
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} |
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CrossBrowserElement.prototype.removeEventListener = function(eventType, eventListener, useCapture) { |
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eventType = eventType.toLowerCase(); |
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if (!useCapture) useCapture = false; |
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if ((eventType.indexOf('mouse') != -1) || eventType == 'click' || (eventType.indexOf('key') != -1)) { |
| 208 |
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var i; |
| 209 |
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for (i = 0; i < this.listeners.length; ++i) { |
| 210 |
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if (this.listeners[i].type == eventType && this.listeners[i].listener == eventListener && this.listeners[i].capture == useCapture) { |
| 211 |
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if (this.listeners.splice) this.listeners.splice(i, 1); |
| 212 |
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else this.listeners[i].type = "*"; |
| 213 |
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break; |
| 214 |
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} |
| 215 |
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} |
| 216 |
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var remove=true; |
| 217 |
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for (i = 0; i < this.listeners.length; ++i) { if (eventType == this.listeners[i].type) { remove = false; break; } } |
| 218 |
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if (remove) cbeNativeRemoveEventListener(this.ele, eventType, cbePropagateEvent, false); |
| 219 |
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return; |
| 220 |
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} |
| 221 |
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switch(eventType) { |
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case 'slidestart': this.onslidestart = null; return; |
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case 'slide': this.onslide = null; return; |
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case 'slideend': this.onslideend = null; return; |
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case 'dragstart': this.ondragstart = null; return; |
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case 'drag': |
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this.removeEventListener('mousedown', cbeDragStartEvent, this.ondragCapture); |
| 228 |
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this.ondrag = null; |
| 229 |
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return; |
| 230 |
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case 'dragend': this.ondragend = null; return; |
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case 'dragresize': if (window.cbeUtilJsLoaded) cbeRemoveDragResizeListener(this); return; |
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case 'scroll': |
| 233 |
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if (is.nav || is.opera) { |
| 234 |
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window.cbeOnScrollListener = null; |
| 235 |
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return; |
| 236 |
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} |
| 237 |
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break; |
| 238 |
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case 'resize': |
| 239 |
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if (is.nav4 || is.opera) { |
| 240 |
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window.cbeOnResizeListener = null; |
| 241 |
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return; |
| 242 |
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} |
| 243 |
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break; |
| 244 |
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} // end switch |
| 245 |
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cbeNativeRemoveEventListener(this.ele, eventType, eventListener, useCapture); |
| 246 |
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} |
| 247 |
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CrossBrowserEvent.prototype.stopPropagation = function() { this.stopPropagationFlag = true; } |
| 248 |
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CrossBrowserEvent.prototype.preventDefault = function() { this.preventDefaultFlag = true; } |
| 249 |
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CrossBrowserElement.prototype.dispatchEvent= function(e) { |
| 250 |
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var dispatch; |
| 251 |
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e.cbeCurrentTarget = this; |
| 252 |
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for (var i=0; i < this.listeners.length; ++i) { |
| 253 |
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dispatch = false; |
| 254 |
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if (e.type == this.listeners[i].type) { |
| 255 |
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if (e.eventPhase == e.CAPTURING_PHASE) { |
| 256 |
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if (this.listeners[i].capture) dispatch = true; |
| 257 |
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} |
| 258 |
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else if (!this.listeners[i].capture) dispatch = true; |
| 259 |
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} |
| 260 |
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if (dispatch) { |
| 261 |
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if (this.listeners[i].obj) cbeEval(this.listeners[i].obj, this.listeners[i].listener, e); |
| 262 |
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else cbeEval(this.listeners[i].listener, e); |
| 263 |
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} |
| 264 |
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} |
| 265 |
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} |
| 266 |
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function cbePropagateEvent(evt) { |
| 267 |
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var i=0, e=null, a=new Array(); |
| 268 |
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if (evt) e = new CrossBrowserEvent(evt); |
| 269 |
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else if (window.event) e = new CrossBrowserEvent(window.event); |
| 270 |
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else return; |
| 271 |
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// Create an array of EventTargets, following the parent chain up (does not include cbeTarget) |
| 272 |
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var node = e.cbeTarget.parentNode; |
| 273 |
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while(node) { |
| 274 |
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a[i++] = node; |
| 275 |
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node = node.parentNode; |
| 276 |
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} |
| 277 |
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// The capturing phase |
| 278 |
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e.eventPhase = e.CAPTURING_PHASE; |
| 279 |
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for (i = a.length-1; i>=0; --i) { |
| 280 |
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a[i].dispatchEvent(e); |
| 281 |
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if (e.stopPropagationFlag) break; |
| 282 |
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} |
| 283 |
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// The at-target phase |
| 284 |
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if (!e.stopPropagationFlag) { |
| 285 |
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e.eventPhase = e.AT_TARGET; |
| 286 |
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e.cbeTarget.dispatchEvent(e); |
| 287 |
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// The bubbling phase |
| 288 |
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if (!e.stopPropagationFlag && e.bubbles) { |
| 289 |
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e.eventPhase = e.BUBBLING_PHASE; |
| 290 |
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for (i = 0; i < a.length; ++i) { |
| 291 |
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a[i].dispatchEvent(e); |
| 292 |
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if (e.stopPropagationFlag) break; |
| 293 |
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} |
| 294 |
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} |
| 295 |
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} |
| 296 |
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// Don't allow native bubbling |
| 297 |
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if (is.ie) window.event.cancelBubble = true; |
| 298 |
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else if (is.gecko) evt.stopPropagation(); |
| 299 |
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// Allow listener to cancel default action |
| 300 |
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if (e.cancelable && e.preventDefaultFlag) { |
| 301 |
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if (is.gecko || is.opera) evt.preventDefault(); |
| 302 |
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return false; |
| 303 |
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} |
| 304 |
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else return true; |
| 305 |
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} |
| 306 |
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function cbeGetNodeFromPoint(x, y) { |
| 307 |
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var hn /* highNode */, hz=0 /* highZ */, cn /* currentNode */, cz /* currentZ */; |
| 308 |
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hn = document.cbe; |
| 309 |
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while (hn.firstChild && hz >= 0) { |
| 310 |
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hz = -1; |
| 311 |
|
|
cn = hn.firstChild; |
| 312 |
|
|
while (cn) { |
| 313 |
|
|
if (cn.contains(x, y)) { |
| 314 |
|
|
cz = cn.zIndex(); |
| 315 |
|
|
if (cz >= hz) { |
| 316 |
|
|
hn = cn; |
| 317 |
|
|
hz = cz; |
| 318 |
|
|
} |
| 319 |
|
|
} |
| 320 |
|
|
cn = cn.nextSibling; |
| 321 |
|
|
} |
| 322 |
|
|
} |
| 323 |
|
|
return hn; |
| 324 |
|
|
} |
| 325 |
|
|
function cbeScrollEvent() { |
| 326 |
|
|
if (!window.cbeOnScrollListener) { return; } |
| 327 |
|
|
if (cbePageYOffset() != window.cbeOldScrollTop) { |
| 328 |
|
|
cbeEval(window.cbeOnScrollListener); |
| 329 |
|
|
window.cbeOldScrollTop = cbePageYOffset(); |
| 330 |
|
|
} |
| 331 |
|
|
setTimeout("cbeScrollEvent()", 250); |
| 332 |
|
|
} |
| 333 |
|
|
function cbeResizeEvent() { |
| 334 |
|
|
if (!window.cbeOnResizeListener) { return; } |
| 335 |
|
|
var dw = window.cbeOldWidth - cbeInnerWidth(); |
| 336 |
|
|
var dh = window.cbeOldHeight - cbeInnerHeight(); |
| 337 |
|
|
if (dw != 0 || dh != 0) { |
| 338 |
|
|
if (window.cbeOnResizeListener) cbeEval(window.cbeOnResizeListener, dw, dh); |
| 339 |
|
|
window.cbeOldWidth = cbeInnerWidth(); |
| 340 |
|
|
window.cbeOldHeight = cbeInnerHeight(); |
| 341 |
|
|
} |
| 342 |
|
|
setTimeout("cbeResizeEvent()", 250); |
| 343 |
|
|
} |
| 344 |
|
|
function cbeDefaultResizeListener() { |
| 345 |
|
|
if (is.opera) location.replace(location.href); |
| 346 |
|
|
else history.go(0); |
| 347 |
|
|
} |
| 348 |
|
|
var cbeDragObj, cbeDragTarget, cbeDragPhase; |
| 349 |
|
|
function cbeDragStartEvent(e) { |
| 350 |
|
|
if (is.opera) { var tn = e.target.tagName.toLowerCase(); if (tn == 'a') return; } |
| 351 |
|
|
else if (is.nav4) { if (e.target.href) return; } |
| 352 |
|
|
cbeDragObj = e.cbeCurrentTarget; |
| 353 |
|
|
cbeDragTarget = e.cbeTarget; |
| 354 |
|
|
if (cbeDragTarget.id == cbeDragObj.id) cbeDragPhase = e.AT_TARGET; |
| 355 |
|
|
else if (cbeDragObj.ondragCapture) cbeDragPhase = e.CAPTURING_PHASE; |
| 356 |
|
|
else cbeDragPhase = e.BUBBLING_PHASE; |
| 357 |
|
|
if (cbeDragObj) { |
| 358 |
|
|
if (cbeDragObj.ondragstart) { e.type = 'dragstart'; cbeEval(cbeDragObj.ondragstart, e); e.type = 'mousedown'; } |
| 359 |
|
|
cbeDragObj.x = e.pageX; |
| 360 |
|
|
cbeDragObj.y = e.pageY; |
| 361 |
|
|
document.cbe.addEventListener('mousemove', cbeDragEvent, cbeDragObj.ondragCapture); |
| 362 |
|
|
document.cbe.addEventListener('mouseup', cbeDragEndEvent, false); |
| 363 |
|
|
} |
| 364 |
|
|
e.stopPropagation(); |
| 365 |
|
|
e.preventDefault(); |
| 366 |
|
|
} |
| 367 |
|
|
function cbeDragEndEvent(e) { |
| 368 |
|
|
document.cbe.removeEventListener('mousemove', cbeDragEvent, cbeDragObj.ondragCapture); |
| 369 |
|
|
document.cbe.removeEventListener('mouseup', cbeDragEndEvent, false); |
| 370 |
|
|
if (cbeDragObj.ondragend) { |
| 371 |
|
|
e.type = 'dragend'; |
| 372 |
|
|
e.cbeCurrentTarget = cbeDragObj; |
| 373 |
|
|
e.cbeTarget = cbeDragTarget; |
| 374 |
|
|
cbeEval(cbeDragObj.ondragend, e); |
| 375 |
|
|
e.type = 'mouseup'; |
| 376 |
|
|
} |
| 377 |
|
|
//e.stopPropagation(); |
| 378 |
|
|
e.preventDefault(); |
| 379 |
|
|
} |
| 380 |
|
|
function cbeDragEvent(e) { |
| 381 |
|
|
if (cbeDragObj) { |
| 382 |
|
|
e.dx = e.pageX - cbeDragObj.x; |
| 383 |
|
|
e.dy = e.pageY - cbeDragObj.y; |
| 384 |
|
|
cbeDragObj.x = e.pageX; |
| 385 |
|
|
cbeDragObj.y = e.pageY; |
| 386 |
|
|
e.type = 'drag'; |
| 387 |
|
|
e.cbeTarget = cbeDragTarget; |
| 388 |
|
|
e.cbeCurrentTarget = cbeDragObj; |
| 389 |
|
|
e.eventPhase = cbeDragPhase; |
| 390 |
|
|
if (cbeDragObj.ondrag) cbeEval(cbeDragObj.ondrag, e); |
| 391 |
|
|
else cbeDragObj.moveBy(e.dx,e.dy); |
| 392 |
|
|
e.type = 'mousemove'; |
| 393 |
|
|
} |
| 394 |
|
|
//e.stopPropagation(); |
| 395 |
|
|
e.preventDefault(); |
| 396 |
|
|
} |
| 397 |
|
|
var cbeEventPhase = new Array('', 'AT_TARGET', 'BUBBLING_PHASE', 'CAPTURING_PHASE'); |
| 398 |
|
|
var cbeButton = new Array('LEFT', 'MIDDLE', 'RIGHT', 'undefined', 'non-mouse event'); |
| 399 |
|
|
CrossBrowserElement.prototype.ondragstart = null; |
| 400 |
|
|
CrossBrowserElement.prototype.ondrag = null; |
| 401 |
|
|
CrossBrowserElement.prototype.ondragend = null; |
| 402 |
|
|
var cbeEventJsLoaded = true; |
| 403 |
|
|
// End cbe_event.js |
Parent Directory
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