egroupware/phpgwapi/templates/idots2/js/x-desktop/cbe_event.js

404 lines
15 KiB
JavaScript
Executable File

/* cbe_event.js $Revision$
* CBE v4.19, Cross-Browser DHTML API from Cross-Browser.com
* Copyright (c) 2002 Michael Foster (mike@cross-browser.com)
* Distributed under the terms of the GNU LGPL from gnu.org
*/
function cbeELReg(eventType, eventListener, eventCapture, listenerObject) { // event listener registration object constructor
this.type = eventType; this.listener = eventListener; this.capture = eventCapture; this.obj = listenerObject;
}
function CrossBrowserEvent(e) { // Object constructor
// from DOM2 Interface Event
this.type = "";
this.target = null;
this.currentTarget = null;
this.eventPhase = 0;
this.bubbles = true;
this.cancelable = true;
this.timeStamp = 0;
this.AT_TARGET = 1; this.BUBBLING_PHASE = 2; this.CAPTURING_PHASE = 3; // eventPhase masks
// from DOM2 Interface MouseEvent : UIEvent
this.screenX = 0;
this.screenY = 0;
this.clientX = 0;
this.clientY = 0;
this.ctrlKey = false;
this.shiftKey = false;
this.altKey = false;
this.metaKey = false;
this.button = 3; // 3 == undefined
this.relatedTarget = null;
this.LEFT = 0; this.MIDDLE = 1; this.RIGHT = 2; // button masks
// from IE4 Object Model
this.keyCode = 0;
this.offsetX = 0;
this.offsetY = 0;
// from NN4 Object Model
this.pageX = 0;
this.pageY = 0;
// CBE
this.stopPropagationFlag = false;
this.preventDefaultFlag = false;
this.cbeTarget = window.cbe;
this.cbeCurrentTarget = window.cbe;
if (!e) return;
if (e.type) { this.type = e.type; }
if (e.target) { this.target = e.target; }
else if (e.srcElement) { this.target = e.srcElement; }
if (e.currentTarget) { this.currentTarget = e.currentTarget; }
else if (e.toElement) { this.currentTarget = e.toElement; }
if (e.eventPhase) { this.eventPhase = e.eventPhase; }
if (e.bubbles) { this.bubbles = e.bubbles; }
if (e.cancelable) { this.cancelable = e.cancelable; }
if (e.timeStamp) { this.timeStamp = e.timeStamp; }
if (e.screenX) { this.screenX = e.screenX; }
if (e.screenY) { this.screenY = e.screenY; }
if (is.opera5or6) { this.clientX = e.clientX - document.cbe.scrollLeft(); }
else if (e.clientX) { this.clientX = e.clientX; }
else if (e.pageX) { this.clientX = e.pageX - document.cbe.scrollLeft(); }
if (is.opera5or6) { this.clientY = e.clientY - document.cbe.scrollLeft(); }
else if (e.clientY) { this.clientY = e.clientY; }
else if (e.pageY) { this.clientY = e.pageY - document.cbe.scrollLeft(); }
if (is.opera5or6) { this.ctrlKey = e.type=='mousemove' ? e.shiftKey : e.ctrlKey; }
else if (_def(e.ctrlKey)) { this.ctrlKey = e.ctrlKey; }
else if (_def(e.modifiers) && window.Event) { this.ctrlKey = (e.modifiers & window.Event.CONTROL_MASK) != 0; }
if (is.opera5or6) { this.shiftKey = e.type=='mousemove' ? e.ctrlKey : e.shiftKey; }
else if (_def(e.shiftKey)) { this.shiftKey = e.shiftKey; }
else if (_def(e.modifiers) && window.Event) { this.shiftKey = (e.modifiers & Event.SHIFT_MASK) != 0; }
if (e.altKey) { this.altKey = e.altKey; }
else if (_def(e.modifiers) && window.Event) { this.altKey = (e.modifiers & Event.ALT_MASK) != 0; }
if (e.metaKey) { this.metaKey = e.metaKey; }
// button (?)
if (is.ie) {
if (this.type.indexOf('mouse') != -1) {
if (e.button == 1) this.button = this.LEFT;
else if (e.button == 4) this.button = this.MIDDLE;
else if (e.button == 2) this.button = this.RIGHT;
}
else if (this.type == 'click') this.button = this.LEFT;
else this.button = 4; // non-mouse event
}
else if (_def(e.button)) { // standard
if (this.type.indexOf('mouse') != -1) { this.button = e.button; if (this.button < 0 || this.button > 2) {this.button = 3;} }
else if (this.type == 'click') this.button = this.LEFT;
else this.button = 4; // non-mouse event
}
else if (_def(e.which)) {
if (document.layers) { // nn4
if (this.type.indexOf('mouse') != -1) { this.button = e.which - 1; if (this.button < 0 || this.button > 2) {this.button = 3;} }
else if (this.type == 'click') this.button = this.LEFT;
else this.button = 4; // non-mouse event
}
else { // opera5or6
if ((e.type == 'click' && e.which == 0) || ((e.type == 'mousedown' || e.type == 'mouseup') && e.which == 1)) {this.button = this.LEFT;}
}
}
if (e.relatedTarget) { this.relatedTarget = e.relatedTarget; }
else if (e.fromElement) { this.relatedTarget = e.fromElement; } // ? may need to be toElement in some cases ?
if (_def(e.which)) { this.keyCode = e.which; }
else if (_def(e.keyCode)) { this.keyCode = e.keyCode; }
var calcOfs = false;
if (_def(e.layerX,e.layerY)) { this.offsetX = e.layerX; this.offsetY = e.layerY; }
else calcOfs = true; // calculate it below
if (is.opera5or6) { this.pageX = e.clientX; this.pageY = e.clientY; }
else if (_def(e.pageX,e.pageY)) { this.pageX = e.pageX; this.pageY = e.pageY; }
else {
this.pageX = this.clientX + document.cbe.scrollLeft();
this.pageY = this.clientY + document.cbe.scrollTop();
}
// Find the CBE event target
if (document.layers) {
this.cbeTarget = cbeGetNodeFromPoint(this.pageX, this.pageY);
// NN4 note: mouseout works only if mouseover and mouseout are both added to the same object
if (this.type == 'mouseover') cbeMOT = this.cbeTarget;
else if (this.type == 'mouseout') this.cbeTarget = cbeMOT || document.cbe;
}
else { var target = this.target; while (!target.cbe) {target = cbeGetParentElement(target);} this.cbeTarget = target.cbe; }
this.cbeCurrentTarget = this.cbeTarget;
if (calcOfs) { this.offsetX = this.pageX - this.cbeTarget.pageX(); this.offsetY = this.pageY - this.cbeTarget.pageY(); }
}
CrossBrowserElement.prototype.addEventListener = function(eventType, eventListener, useCapture, listenerObject) {
if (!useCapture) useCapture = false;
eventType = eventType.toLowerCase();
if (
(eventType.indexOf('mouse') != -1)
|| eventType == 'click'
|| (eventType.indexOf('key') != -1)
/* || (eventType.indexOf('resize') != -1 && !is.nav4 && !is.opera)
|| (eventType.indexOf('scroll') != -1 && !is.nav && !is.opera) */
) {
var add=true;
for (var i=0; i < this.listeners.length; ++i) { if (eventType == this.listeners[i].type) {add=false; break;} }
if (add) {
cbeNativeAddEventListener(this.ele, eventType, cbePropagateEvent, false);
}
this.listeners[this.listeners.length] = new cbeELReg(eventType, eventListener, useCapture, listenerObject);
return;
}
switch(eventType) {
case 'slidestart': this.onslidestart = eventListener; return;
case 'slide': this.onslide = eventListener; return;
case 'slideend': this.onslideend = eventListener; return;
case 'dragstart': this.ondragstart = eventListener; return;
case 'drag':
this.ondragCapture = useCapture;
this.ondrag = eventListener;
this.addEventListener('mousedown', cbeDragStartEvent, useCapture);
return;
case 'dragend': this.ondragend = eventListener; return;
case 'dragresize': if (window.cbeUtilJsLoaded) cbeAddDragResizeListener(this); return;
case 'scroll':
if (is.nav || is.opera) {
window.cbeOldScrollTop = cbePageYOffset();
window.cbeOnScrollListener = eventListener;
cbeScrollEvent();
return;
}
break;
case 'resize':
if (is.nav4 || is.opera) {
window.cbeOldWidth = cbeInnerWidth();
window.cbeOldHeight = cbeInnerHeight();
window.cbeOnResizeListener = eventListener;
cbeResizeEvent();
return;
}
break;
} // end switch
cbeNativeAddEventListener(this.ele, eventType, eventListener, useCapture);
}
function cbeNativeAddEventListener(ele, eventType, eventListener, useCapture) {
if (!useCapture) useCapture = false;
eventType = eventType.toLowerCase();
var eh = "ele.on" + eventType + "=eventListener";
if (ele.addEventListener) {
ele.addEventListener(eventType, eventListener, useCapture);
}
else if (ele.captureEvents) {
// if (useCapture || (eventType.indexOf('mousemove')!=-1)) // ???
ele.captureEvents(eval("Event." + eventType.toUpperCase()));
eval(eh);
}
else { eval(eh); }
}
function cbeNativeRemoveEventListener(ele, eventType, eventListener, useCapture) {
if (!useCapture) useCapture = false;
eventType = eventType.toLowerCase();
var eh = "ele.on" + eventType + "=null";
if (ele.removeEventListener) {
ele.removeEventListener(eventType, eventListener, useCapture);
}
else if (ele.releaseEvents) {
// if (useCapture || (eventType.indexOf('mousemove')!=-1)) // ???
ele.releaseEvents(eval("Event." + eventType.toUpperCase()));
eval(eh);
}
else { eval(eh); }
}
CrossBrowserElement.prototype.removeEventListener = function(eventType, eventListener, useCapture) {
eventType = eventType.toLowerCase();
if (!useCapture) useCapture = false;
if ((eventType.indexOf('mouse') != -1) || eventType == 'click' || (eventType.indexOf('key') != -1)) {
var i;
for (i = 0; i < this.listeners.length; ++i) {
if (this.listeners[i].type == eventType && this.listeners[i].listener == eventListener && this.listeners[i].capture == useCapture) {
if (this.listeners.splice) this.listeners.splice(i, 1);
else this.listeners[i].type = "*";
break;
}
}
var remove=true;
for (i = 0; i < this.listeners.length; ++i) { if (eventType == this.listeners[i].type) { remove = false; break; } }
if (remove) cbeNativeRemoveEventListener(this.ele, eventType, cbePropagateEvent, false);
return;
}
switch(eventType) {
case 'slidestart': this.onslidestart = null; return;
case 'slide': this.onslide = null; return;
case 'slideend': this.onslideend = null; return;
case 'dragstart': this.ondragstart = null; return;
case 'drag':
this.removeEventListener('mousedown', cbeDragStartEvent, this.ondragCapture);
this.ondrag = null;
return;
case 'dragend': this.ondragend = null; return;
case 'dragresize': if (window.cbeUtilJsLoaded) cbeRemoveDragResizeListener(this); return;
case 'scroll':
if (is.nav || is.opera) {
window.cbeOnScrollListener = null;
return;
}
break;
case 'resize':
if (is.nav4 || is.opera) {
window.cbeOnResizeListener = null;
return;
}
break;
} // end switch
cbeNativeRemoveEventListener(this.ele, eventType, eventListener, useCapture);
}
CrossBrowserEvent.prototype.stopPropagation = function() { this.stopPropagationFlag = true; }
CrossBrowserEvent.prototype.preventDefault = function() { this.preventDefaultFlag = true; }
CrossBrowserElement.prototype.dispatchEvent= function(e) {
var dispatch;
e.cbeCurrentTarget = this;
for (var i=0; i < this.listeners.length; ++i) {
dispatch = false;
if (e.type == this.listeners[i].type) {
if (e.eventPhase == e.CAPTURING_PHASE) {
if (this.listeners[i].capture) dispatch = true;
}
else if (!this.listeners[i].capture) dispatch = true;
}
if (dispatch) {
if (this.listeners[i].obj) cbeEval(this.listeners[i].obj, this.listeners[i].listener, e);
else cbeEval(this.listeners[i].listener, e);
}
}
}
function cbePropagateEvent(evt) {
var i=0, e=null, a=new Array();
if (evt) e = new CrossBrowserEvent(evt);
else if (window.event) e = new CrossBrowserEvent(window.event);
else return;
// Create an array of EventTargets, following the parent chain up (does not include cbeTarget)
var node = e.cbeTarget.parentNode;
while(node) {
a[i++] = node;
node = node.parentNode;
}
// The capturing phase
e.eventPhase = e.CAPTURING_PHASE;
for (i = a.length-1; i>=0; --i) {
a[i].dispatchEvent(e);
if (e.stopPropagationFlag) break;
}
// The at-target phase
if (!e.stopPropagationFlag) {
e.eventPhase = e.AT_TARGET;
e.cbeTarget.dispatchEvent(e);
// The bubbling phase
if (!e.stopPropagationFlag && e.bubbles) {
e.eventPhase = e.BUBBLING_PHASE;
for (i = 0; i < a.length; ++i) {
a[i].dispatchEvent(e);
if (e.stopPropagationFlag) break;
}
}
}
// Don't allow native bubbling
if (is.ie) window.event.cancelBubble = true;
else if (is.gecko) evt.stopPropagation();
// Allow listener to cancel default action
if (e.cancelable && e.preventDefaultFlag) {
if (is.gecko || is.opera) evt.preventDefault();
return false;
}
else return true;
}
function cbeGetNodeFromPoint(x, y) {
var hn /* highNode */, hz=0 /* highZ */, cn /* currentNode */, cz /* currentZ */;
hn = document.cbe;
while (hn.firstChild && hz >= 0) {
hz = -1;
cn = hn.firstChild;
while (cn) {
if (cn.contains(x, y)) {
cz = cn.zIndex();
if (cz >= hz) {
hn = cn;
hz = cz;
}
}
cn = cn.nextSibling;
}
}
return hn;
}
function cbeScrollEvent() {
if (!window.cbeOnScrollListener) { return; }
if (cbePageYOffset() != window.cbeOldScrollTop) {
cbeEval(window.cbeOnScrollListener);
window.cbeOldScrollTop = cbePageYOffset();
}
setTimeout("cbeScrollEvent()", 250);
}
function cbeResizeEvent() {
if (!window.cbeOnResizeListener) { return; }
var dw = window.cbeOldWidth - cbeInnerWidth();
var dh = window.cbeOldHeight - cbeInnerHeight();
if (dw != 0 || dh != 0) {
if (window.cbeOnResizeListener) cbeEval(window.cbeOnResizeListener, dw, dh);
window.cbeOldWidth = cbeInnerWidth();
window.cbeOldHeight = cbeInnerHeight();
}
setTimeout("cbeResizeEvent()", 250);
}
function cbeDefaultResizeListener() {
if (is.opera) location.replace(location.href);
else history.go(0);
}
var cbeDragObj, cbeDragTarget, cbeDragPhase;
function cbeDragStartEvent(e) {
if (is.opera) { var tn = e.target.tagName.toLowerCase(); if (tn == 'a') return; }
else if (is.nav4) { if (e.target.href) return; }
cbeDragObj = e.cbeCurrentTarget;
cbeDragTarget = e.cbeTarget;
if (cbeDragTarget.id == cbeDragObj.id) cbeDragPhase = e.AT_TARGET;
else if (cbeDragObj.ondragCapture) cbeDragPhase = e.CAPTURING_PHASE;
else cbeDragPhase = e.BUBBLING_PHASE;
if (cbeDragObj) {
if (cbeDragObj.ondragstart) { e.type = 'dragstart'; cbeEval(cbeDragObj.ondragstart, e); e.type = 'mousedown'; }
cbeDragObj.x = e.pageX;
cbeDragObj.y = e.pageY;
document.cbe.addEventListener('mousemove', cbeDragEvent, cbeDragObj.ondragCapture);
document.cbe.addEventListener('mouseup', cbeDragEndEvent, false);
}
e.stopPropagation();
e.preventDefault();
}
function cbeDragEndEvent(e) {
document.cbe.removeEventListener('mousemove', cbeDragEvent, cbeDragObj.ondragCapture);
document.cbe.removeEventListener('mouseup', cbeDragEndEvent, false);
if (cbeDragObj.ondragend) {
e.type = 'dragend';
e.cbeCurrentTarget = cbeDragObj;
e.cbeTarget = cbeDragTarget;
cbeEval(cbeDragObj.ondragend, e);
e.type = 'mouseup';
}
//e.stopPropagation();
e.preventDefault();
}
function cbeDragEvent(e) {
if (cbeDragObj) {
e.dx = e.pageX - cbeDragObj.x;
e.dy = e.pageY - cbeDragObj.y;
cbeDragObj.x = e.pageX;
cbeDragObj.y = e.pageY;
e.type = 'drag';
e.cbeTarget = cbeDragTarget;
e.cbeCurrentTarget = cbeDragObj;
e.eventPhase = cbeDragPhase;
if (cbeDragObj.ondrag) cbeEval(cbeDragObj.ondrag, e);
else cbeDragObj.moveBy(e.dx,e.dy);
e.type = 'mousemove';
}
//e.stopPropagation();
e.preventDefault();
}
var cbeEventPhase = new Array('', 'AT_TARGET', 'BUBBLING_PHASE', 'CAPTURING_PHASE');
var cbeButton = new Array('LEFT', 'MIDDLE', 'RIGHT', 'undefined', 'non-mouse event');
CrossBrowserElement.prototype.ondragstart = null;
CrossBrowserElement.prototype.ondrag = null;
CrossBrowserElement.prototype.ondragend = null;
var cbeEventJsLoaded = true;
// End cbe_event.js