-// (c) Benoît PIN 2006-2009
-// http://plinn.org
-// Licence GPL
-// $Id: javascript_events_api.js 1535 2009-10-21 16:56:13Z pin $
-// $URL: http://svn.cri.ensmp.fr/svn/Plinn/branches/CMF-2.1/skins/ajax_scripts/javascript_events_api.js $
-// Meta functions for events management.
-
-var addListener; /* (ob, eventName, listenerFunction, group) add event listener eventName without "on" prefix.
- * optionally, listeners can be grouped to make removing convenient.
- */
-var removeListener; // (ob, eventName, listenerFunction, group) remove event listener.
-var removeGroupListeners; // (group) remove all listeners in group.
-var raiseMouseEvent; // (ob, eventName) raise mouse event (without "on" prefix) on object.
-
-var getTargetedObject; // (event) retrieves the object that fired the event. Event parameter is optional.
-var getEventObject; // (event) return the event object. Event parameter is optional.
-var disableDefault; // (event) disable default event's action. Event parameter is optional.
-var disablePropagation; // (event) disable event propagation or bubbling.
-
-// etc utils
-var getWindowWidth; // returns browser's window width
-var getWindowHeight; // returns browser's window height
-var clearSelection; // clear current selection (useful on drag and drop)
-var getCopyOfNode; /* (node) returns a clone of the given node.
- * Useful when :
- * the node came from a foreign document (eg. XmlHttpRequest xml reponse)
- * to inject HMTL code inside tags where innerHtml is read only (IE)
- */
-
-(function(){
-
-function buildMetaFunctions() {
- addListener = _build_addListener();
- removeListener = _build_removeListener();
- raiseMouseEvent = _build_raiseMouseEvent();
-
- getTargetedObject = _build_getTargetedObject();
- getEventObject = _build_getEventObject();
- disableDefault = _build_disableDefault();
- disablePropagation = _build_disablePropagation();
- getWindowWidth = _build_getWindowWidth();
- getWindowHeight = _build_getWindowHeight();
- clearSelection = _build_clearSelection();
-}
-
-__groupListeners = {};
-
-function _build_addListener() {
- var _browserSpecific;
- if (browser.isIE55 || browser.isIE6up) {
- _browserSpecific = function(ob, eventName, listenerFunction) {
- eventName = "on" + eventName;
- ob.attachEvent(eventName, listenerFunction);
- };
- }
- else if (browser.isDOM2Event) {
- _browserSpecific = function(ob, eventName, listenerFunction) {
- ob.addEventListener(eventName, listenerFunction, false); // only bubbling events :-(
- };
- }
- var common = function(ob, eventName, listenerFunction, group) {
- _browserSpecific(ob, eventName, listenerFunction);
- if (group) {
- if(!__groupListeners[group])
- __groupListeners[group] = new Array();
- __groupListeners[group].push([ob, eventName, listenerFunction]);
- }
- }
- return common;
-}
-
-function _build_removeListener() {
- if (browser.isIE55 || browser.isIE6up) {
- var _ie_removeListener = function(ob, eventName, listenerFunction) {
- eventName = "on" + eventName;
- ob.detachEvent(eventName, listenerFunction);
- }
- return _ie_removeListener;
- }
- else if (browser.isDOM2Event) {
- var _dom2_removeListener = function(ob, eventName, listenerFunction) {
- ob.removeEventListener(eventName, listenerFunction, false); // only bubbling events :-(
- }
- return _dom2_removeListener;
- }
-}
-
-removeGroupListeners = function(group) {
- var listeners = __groupListeners[group];
- var l;
- for (var i=0 ; i<listeners.length ; i++){
- l = listeners[i];
- removeListener(l[0], l[1], l[2])
- }
- __groupListeners[group] = null;
-
-}
-
-function _build_raiseMouseEvent() {
- if (browser.isIE55 || browser.isIE6up) {
- var _ie_raiseMouseEvent = function(ob, eventName) {
- ob.fireEvent("on" + eventName);
- }
- return _ie_raiseMouseEvent;
- }
- else if (browser.isDOM2Event) {
- var _dom2_raiseMouseEvent = function(ob, eventName) {
- var event = document.createEvent("MouseEvents");
- event.initEvent(eventName, true, true);
- ob.dispatchEvent(event);
- }
- return _dom2_raiseMouseEvent;
- }
-}
-
-function _build_getTargetedObject(){
- if (browser.isIE55 || browser.isIE6up) {
- var _ie_getTargetedObject = function() {
- return window.event.srcElement;
- }
- return _ie_getTargetedObject;
- }
- else if (browser.isDOM2Event) {
- var _appleWebKit_getTargetedeObject = function(evt) {
- var target = evt.target;
- // is it really safe ?...
- return (target.nodeType == 3) ? target.parentNode : target;
- }
- var _dom2_getTargetedObject = function(evt) {
- return evt.target
- }
- return (browser.isAppleWebKit) ? _appleWebKit_getTargetedeObject : _dom2_getTargetedObject;
- }
-}
-
-function _build_getEventObject(){
- if (browser.isIE) {
- var _ie_getEventObject = function() {
- return window.event;
- }
- return _ie_getEventObject;
- }
- else if (browser.isDOM2Event) {
- var _dom2_getEventObject = function(evt) {
- return evt;
- }
- return _dom2_getEventObject;
- }
-}
-
-
-function _build_disableDefault(){
- if (browser.isIE55 || browser.isIE6up) {
- var _ie_disableDefault = function() {
- window.event.returnValue = false;
- }
- return _ie_disableDefault;
- }
- else if (browser.isDOM2Event) {
- var _dom2_disableDefault = function(evt) {
- evt.preventDefault();
- }
- return _dom2_disableDefault;
- }
-}
-
-function _build_disablePropagation() {
- if (browser.isIE55 || browser.isIE6up) {
- var _ie_disablePropagation = function() {
- window.event.cancelBubble = true;
- }
- return _ie_disablePropagation;
- }
- else if (browser.isDOM2Event) {
- var _dom2_disablePropagation = function(evt) {
- evt.stopPropagation();
- }
- return _dom2_disablePropagation;
- }
-}
-
-function _build_getWindowWidth() {
- if (window.innerWidth != undefined){
- return function(){
- return window.innerWidth;
- };
- }
- else {
- return function(){
- return document.documentElement.clientWidth;
- };
- }
-}
-
-function _build_getWindowHeight() {
- if (window.innerHeight != undefined) {
- return function(){
- return window.innerHeight;
- };
- }
- else {
- return function(){
- return document.documentElement.clientHeight;
- };
- }
-}
-
-function _build_clearSelection() {
- if (document.selection) {
- return function() {
- document.selection.clear();
- };
- }
- else {
- return function() {
- window.getSelection().removeAllRanges();
- }
- }
-}
-
-
-buildMetaFunctions();
-
-var ELEMENT_NODE = 1;
-var TEXT_NODE = 3;
-var _setAttribute;
-getCopyOfNode = function(node) {
-
- switch(node.nodeType) {
- case ELEMENT_NODE:
- var attributes = node.attributes;
- var childs = node.childNodes;
-
- var e = document.createElement(node.nodeName);
-
- var attribute;
- for(var i=0 ; i<attributes.length ; i++) {
- attribute = attributes[i];
- _setAttribute(e, attribute.name, attribute.value);
- }
-
- for(var i=0 ; i<childs.length ; i++)
- e.appendChild(getCopyOfNode(childs[i]));
-
- return e;
- break;
- case TEXT_NODE:
- return document.createTextNode(node.nodeValue);
- break;
- }
-}
-
-if (browser.isIE) {
- _setAttribute = function(e, name, value) {
- // workarround IE lack of dom implementation.
- switch(name.toLowerCase()) {
- case 'colspan' :
- e.colSpan = value;
- break;
- case 'class' :
- e.className = value;
- break;
- case 'style' :
- loadCssText(e, value);
- break;
- default:
- if (name.slice(0,2) == 'on') // event handler
- e[name] = function(){eval(value);};
- else
- e.setAttribute(name, value);
- }
- };
- var reCompoundPropName = /^\s*([^\-]+)\-([a-z])([a-z]+)\s*$/;
- function _capitalizeCssPropName(s, g1, g2, g3) { // gN args match above regexp groups
- if(g2)
- return g1 + g2.toUpperCase() + g3;
- else
- return s;
- }
-
- function loadCssText(e, cssText) {
- var pairs = cssText.split(';');
- var pair, name, value;
- var style = e.style;
- for (var i= 0; i < pairs.length; i++) {
- pair = pairs[i].split(':');
- if (pair.length != 2)
- continue;
- name = _capitalizeCssPropName(pair[0]);
- value = pair[1];
- style[name] = value;
- }
- }
-}
-else {
- _setAttribute = function(e, name, value) {e.setAttribute(name, value);};
-}
-
-})();
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