mirror of
https://github.com/EGroupware/egroupware.git
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404 lines
15 KiB
JavaScript
Executable File
404 lines
15 KiB
JavaScript
Executable File
/* cbe_event.js $Revision$
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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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}
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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);
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}
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else if (ele.releaseEvents) {
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// if (useCapture || (eventType.indexOf('mousemove')!=-1)) // ???
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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)) {
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var i;
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for (i = 0; i < this.listeners.length; ++i) {
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if (this.listeners[i].type == eventType && this.listeners[i].listener == eventListener && this.listeners[i].capture == useCapture) {
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if (this.listeners.splice) this.listeners.splice(i, 1);
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else this.listeners[i].type = "*";
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break;
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}
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}
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var remove=true;
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for (i = 0; i < this.listeners.length; ++i) { if (eventType == this.listeners[i].type) { remove = false; break; } }
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if (remove) cbeNativeRemoveEventListener(this.ele, eventType, cbePropagateEvent, false);
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return;
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}
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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);
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this.ondrag = null;
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return;
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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':
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if (is.nav || is.opera) {
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window.cbeOnScrollListener = null;
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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.cbeOnResizeListener = null;
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return;
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}
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break;
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} // end switch
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cbeNativeRemoveEventListener(this.ele, eventType, eventListener, useCapture);
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}
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CrossBrowserEvent.prototype.stopPropagation = function() { this.stopPropagationFlag = true; }
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CrossBrowserEvent.prototype.preventDefault = function() { this.preventDefaultFlag = true; }
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CrossBrowserElement.prototype.dispatchEvent= function(e) {
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var dispatch;
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e.cbeCurrentTarget = this;
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for (var i=0; i < this.listeners.length; ++i) {
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dispatch = false;
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if (e.type == this.listeners[i].type) {
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if (e.eventPhase == e.CAPTURING_PHASE) {
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if (this.listeners[i].capture) dispatch = true;
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}
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else if (!this.listeners[i].capture) dispatch = true;
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}
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if (dispatch) {
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if (this.listeners[i].obj) cbeEval(this.listeners[i].obj, this.listeners[i].listener, e);
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else cbeEval(this.listeners[i].listener, e);
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}
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}
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}
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function cbePropagateEvent(evt) {
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var i=0, e=null, a=new Array();
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if (evt) e = new CrossBrowserEvent(evt);
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else if (window.event) e = new CrossBrowserEvent(window.event);
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else return;
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// Create an array of EventTargets, following the parent chain up (does not include cbeTarget)
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var node = e.cbeTarget.parentNode;
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while(node) {
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a[i++] = node;
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node = node.parentNode;
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}
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// The capturing phase
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e.eventPhase = e.CAPTURING_PHASE;
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for (i = a.length-1; i>=0; --i) {
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a[i].dispatchEvent(e);
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if (e.stopPropagationFlag) break;
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}
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// The at-target phase
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if (!e.stopPropagationFlag) {
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e.eventPhase = e.AT_TARGET;
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e.cbeTarget.dispatchEvent(e);
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// The bubbling phase
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if (!e.stopPropagationFlag && e.bubbles) {
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e.eventPhase = e.BUBBLING_PHASE;
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for (i = 0; i < a.length; ++i) {
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a[i].dispatchEvent(e);
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if (e.stopPropagationFlag) break;
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}
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}
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}
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// Don't allow native bubbling
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if (is.ie) window.event.cancelBubble = true;
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else if (is.gecko) evt.stopPropagation();
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// Allow listener to cancel default action
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if (e.cancelable && e.preventDefaultFlag) {
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if (is.gecko || is.opera) evt.preventDefault();
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return false;
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}
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else return true;
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}
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function cbeGetNodeFromPoint(x, y) {
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var hn /* highNode */, hz=0 /* highZ */, cn /* currentNode */, cz /* currentZ */;
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hn = document.cbe;
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while (hn.firstChild && hz >= 0) {
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hz = -1;
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cn = hn.firstChild;
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while (cn) {
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if (cn.contains(x, y)) {
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cz = cn.zIndex();
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if (cz >= hz) {
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hn = cn;
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hz = cz;
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}
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}
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cn = cn.nextSibling;
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}
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}
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return hn;
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}
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function cbeScrollEvent() {
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if (!window.cbeOnScrollListener) { return; }
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if (cbePageYOffset() != window.cbeOldScrollTop) {
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cbeEval(window.cbeOnScrollListener);
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window.cbeOldScrollTop = cbePageYOffset();
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}
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setTimeout("cbeScrollEvent()", 250);
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}
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function cbeResizeEvent() {
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if (!window.cbeOnResizeListener) { return; }
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var dw = window.cbeOldWidth - cbeInnerWidth();
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var dh = window.cbeOldHeight - cbeInnerHeight();
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if (dw != 0 || dh != 0) {
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if (window.cbeOnResizeListener) cbeEval(window.cbeOnResizeListener, dw, dh);
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window.cbeOldWidth = cbeInnerWidth();
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window.cbeOldHeight = cbeInnerHeight();
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}
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setTimeout("cbeResizeEvent()", 250);
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}
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function cbeDefaultResizeListener() {
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if (is.opera) location.replace(location.href);
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else history.go(0);
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}
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var cbeDragObj, cbeDragTarget, cbeDragPhase;
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function cbeDragStartEvent(e) {
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if (is.opera) { var tn = e.target.tagName.toLowerCase(); if (tn == 'a') return; }
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else if (is.nav4) { if (e.target.href) return; }
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cbeDragObj = e.cbeCurrentTarget;
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cbeDragTarget = e.cbeTarget;
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if (cbeDragTarget.id == cbeDragObj.id) cbeDragPhase = e.AT_TARGET;
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else if (cbeDragObj.ondragCapture) cbeDragPhase = e.CAPTURING_PHASE;
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else cbeDragPhase = e.BUBBLING_PHASE;
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if (cbeDragObj) {
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if (cbeDragObj.ondragstart) { e.type = 'dragstart'; cbeEval(cbeDragObj.ondragstart, e); e.type = 'mousedown'; }
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cbeDragObj.x = e.pageX;
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cbeDragObj.y = e.pageY;
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document.cbe.addEventListener('mousemove', cbeDragEvent, cbeDragObj.ondragCapture);
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document.cbe.addEventListener('mouseup', cbeDragEndEvent, false);
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}
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e.stopPropagation();
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e.preventDefault();
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}
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function cbeDragEndEvent(e) {
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document.cbe.removeEventListener('mousemove', cbeDragEvent, cbeDragObj.ondragCapture);
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document.cbe.removeEventListener('mouseup', cbeDragEndEvent, false);
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if (cbeDragObj.ondragend) {
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e.type = 'dragend';
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e.cbeCurrentTarget = cbeDragObj;
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e.cbeTarget = cbeDragTarget;
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cbeEval(cbeDragObj.ondragend, e);
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e.type = 'mouseup';
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}
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//e.stopPropagation();
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e.preventDefault();
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}
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function cbeDragEvent(e) {
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if (cbeDragObj) {
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e.dx = e.pageX - cbeDragObj.x;
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e.dy = e.pageY - cbeDragObj.y;
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cbeDragObj.x = e.pageX;
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cbeDragObj.y = e.pageY;
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e.type = 'drag';
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e.cbeTarget = cbeDragTarget;
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e.cbeCurrentTarget = cbeDragObj;
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e.eventPhase = cbeDragPhase;
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if (cbeDragObj.ondrag) cbeEval(cbeDragObj.ondrag, e);
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else cbeDragObj.moveBy(e.dx,e.dy);
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e.type = 'mousemove';
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}
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//e.stopPropagation();
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e.preventDefault();
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}
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var cbeEventPhase = new Array('', 'AT_TARGET', 'BUBBLING_PHASE', 'CAPTURING_PHASE');
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var cbeButton = new Array('LEFT', 'MIDDLE', 'RIGHT', 'undefined', 'non-mouse event');
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CrossBrowserElement.prototype.ondragstart = null;
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CrossBrowserElement.prototype.ondrag = null;
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CrossBrowserElement.prototype.ondragend = null;
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var cbeEventJsLoaded = true;
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// End cbe_event.js
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