699 lines
24 KiB
JavaScript
699 lines
24 KiB
JavaScript
// Copyright (c) 2005 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
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// (c) 2005 Ivan Krstic (http://blogs.law.harvard.edu/ivan)
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// (c) 2005 Jon Tirsen (http://www.tirsen.com)
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// Contributors:
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// Richard Livsey
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// Rahul Bhargava
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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// Autocompleter.Base handles all the autocompletion functionality
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// that's independent of the data source for autocompletion. This
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// includes drawing the autocompletion menu, observing keyboard
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// and mouse events, and similar.
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//
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// Specific autocompleters need to provide, at the very least,
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// a getUpdatedChoices function that will be invoked every time
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// the text inside the monitored textbox changes. This method
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// should get the text for which to provide autocompletion by
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// invoking this.getToken(), NOT by directly accessing
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// this.element.value. This is to allow incremental tokenized
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// autocompletion. Specific auto-completion logic (AJAX, etc)
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// belongs in getUpdatedChoices.
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//
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// Tokenized incremental autocompletion is enabled automatically
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// when an autocompleter is instantiated with the 'tokens' option
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// in the options parameter, e.g.:
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// new Ajax.Autocompleter('id','upd', '/url/', { tokens: ',' });
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// will incrementally autocomplete with a comma as the token.
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// Additionally, ',' in the above example can be replaced with
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// a token array, e.g. { tokens: [',', '\n'] } which
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// enables autocompletion on multiple tokens. This is most
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// useful when one of the tokens is \n (a newline), as it
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// allows smart autocompletion after linebreaks.
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var Autocompleter = {}
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Autocompleter.Base = function() {};
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Autocompleter.Base.prototype = {
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baseInitialize: function(element, update, options) {
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this.element = $(element);
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this.update = $(update);
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this.hasFocus = false;
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this.changed = false;
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this.active = false;
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this.index = 0;
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this.entryCount = 0;
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if (this.setOptions)
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this.setOptions(options);
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else
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this.options = options || {};
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this.options.paramName = this.options.paramName || this.element.name;
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this.options.tokens = this.options.tokens || [];
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this.options.frequency = this.options.frequency || 0.4;
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this.options.minChars = this.options.minChars || 1;
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this.options.onShow = this.options.onShow ||
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function(element, update){
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if(!update.style.position || update.style.position=='absolute') {
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update.style.position = 'absolute';
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Position.clone(element, update, {setHeight: false, offsetTop: element.offsetHeight});
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}
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new Effect.Appear(update,{duration:0.15});
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};
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this.options.onHide = this.options.onHide ||
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function(element, update){ new Effect.Fade(update,{duration:0.15}) };
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if (typeof(this.options.tokens) == 'string')
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this.options.tokens = new Array(this.options.tokens);
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this.observer = null;
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this.element.setAttribute('autocomplete','off');
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Element.hide(this.update);
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Event.observe(this.element, "blur", this.onBlur.bindAsEventListener(this));
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Event.observe(this.element, "keypress", this.onKeyPress.bindAsEventListener(this));
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},
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show: function() {
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if(Element.getStyle(this.update, 'display')=='none') this.options.onShow(this.element, this.update);
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if(!this.iefix && (navigator.appVersion.indexOf('MSIE')>0) && (Element.getStyle(this.update, 'position')=='absolute')) {
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new Insertion.After(this.update,
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'<iframe id="' + this.update.id + '_iefix" '+
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'style="display:none;position:absolute;filter:progid:DXImageTransform.Microsoft.Alpha(opacity=0);" ' +
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'src="javascript:false;" frameborder="0" scrolling="no"></iframe>');
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this.iefix = $(this.update.id+'_iefix');
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}
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if(this.iefix) {
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Position.clone(this.update, this.iefix);
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this.iefix.style.zIndex = 1;
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this.update.style.zIndex = 2;
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Element.show(this.iefix);
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}
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},
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hide: function() {
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if(Element.getStyle(this.update, 'display')!='none') this.options.onHide(this.element, this.update);
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if(this.iefix) Element.hide(this.iefix);
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},
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startIndicator: function() {
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if(this.options.indicator) Element.show(this.options.indicator);
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},
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stopIndicator: function() {
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if(this.options.indicator) Element.hide(this.options.indicator);
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},
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onKeyPress: function(event) {
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if(this.active)
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switch(event.keyCode) {
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case Event.KEY_TAB:
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case Event.KEY_RETURN:
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this.selectEntry();
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Event.stop(event);
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case Event.KEY_ESC:
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this.hide();
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this.active = false;
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Event.stop(event);
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return;
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case Event.KEY_LEFT:
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case Event.KEY_RIGHT:
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return;
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case Event.KEY_UP:
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this.markPrevious();
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this.render();
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if(navigator.appVersion.indexOf('AppleWebKit')>0) Event.stop(event);
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return;
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case Event.KEY_DOWN:
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this.markNext();
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this.render();
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if(navigator.appVersion.indexOf('AppleWebKit')>0) Event.stop(event);
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return;
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}
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else
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if(event.keyCode==Event.KEY_TAB || event.keyCode==Event.KEY_RETURN)
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return;
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this.changed = true;
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this.hasFocus = true;
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if(this.observer) clearTimeout(this.observer);
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this.observer =
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setTimeout(this.onObserverEvent.bind(this), this.options.frequency*1000);
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},
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onHover: function(event) {
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var element = Event.findElement(event, 'LI');
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if(this.index != element.autocompleteIndex)
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{
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this.index = element.autocompleteIndex;
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this.render();
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}
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Event.stop(event);
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},
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onClick: function(event) {
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var element = Event.findElement(event, 'LI');
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this.index = element.autocompleteIndex;
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this.selectEntry();
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this.hide();
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},
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onBlur: function(event) {
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// needed to make click events working
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setTimeout(this.hide.bind(this), 250);
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this.hasFocus = false;
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this.active = false;
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},
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render: function() {
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if(this.entryCount > 0) {
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for (var i = 0; i < this.entryCount; i++)
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this.index==i ?
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Element.addClassName(this.getEntry(i),"selected") :
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Element.removeClassName(this.getEntry(i),"selected");
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if(this.hasFocus) {
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this.show();
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this.active = true;
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}
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} else this.hide();
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},
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markPrevious: function() {
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if(this.index > 0) this.index--
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else this.index = this.entryCcount-1;
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},
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markNext: function() {
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if(this.index < this.entryCount-1) this.index++
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else this.index = 0;
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},
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getEntry: function(index) {
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return this.update.firstChild.childNodes[index];
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},
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getCurrentEntry: function() {
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return this.getEntry(this.index);
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},
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selectEntry: function() {
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this.active = false;
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this.updateElement(this.getCurrentEntry());
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},
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updateElement: function(selectedElement) {
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if (this.options.updateElement) {
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this.options.updateElement(selectedElement);
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return;
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}
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var value = Element.collectTextNodesIgnoreClass(selectedElement, 'informal');
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var lastTokenPos = this.findLastToken();
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if (lastTokenPos != -1) {
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var newValue = this.element.value.substr(0, lastTokenPos + 1);
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var whitespace = this.element.value.substr(lastTokenPos + 1).match(/^\s+/);
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if (whitespace)
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newValue += whitespace[0];
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this.element.value = newValue + value;
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} else {
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this.element.value = value;
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}
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this.element.focus();
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},
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updateChoices: function(choices) {
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if(!this.changed && this.hasFocus) {
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this.update.innerHTML = choices;
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Element.cleanWhitespace(this.update);
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Element.cleanWhitespace(this.update.firstChild);
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if(this.update.firstChild && this.update.firstChild.childNodes) {
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this.entryCount =
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this.update.firstChild.childNodes.length;
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for (var i = 0; i < this.entryCount; i++) {
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var entry = this.getEntry(i);
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entry.autocompleteIndex = i;
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this.addObservers(entry);
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}
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} else {
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this.entryCount = 0;
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}
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this.stopIndicator();
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this.index = 0;
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this.render();
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}
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},
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addObservers: function(element) {
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Event.observe(element, "mouseover", this.onHover.bindAsEventListener(this));
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Event.observe(element, "click", this.onClick.bindAsEventListener(this));
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},
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onObserverEvent: function() {
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this.changed = false;
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if(this.getToken().length>=this.options.minChars) {
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this.startIndicator();
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this.getUpdatedChoices();
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} else {
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this.active = false;
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this.hide();
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}
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},
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getToken: function() {
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var tokenPos = this.findLastToken();
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if (tokenPos != -1)
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var ret = this.element.value.substr(tokenPos + 1).replace(/^\s+/,'').replace(/\s+$/,'');
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else
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var ret = this.element.value;
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return /\n/.test(ret) ? '' : ret;
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},
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findLastToken: function() {
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var lastTokenPos = -1;
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for (var i=0; i<this.options.tokens.length; i++) {
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var thisTokenPos = this.element.value.lastIndexOf(this.options.tokens[i]);
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if (thisTokenPos > lastTokenPos)
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lastTokenPos = thisTokenPos;
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}
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return lastTokenPos;
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}
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}
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Ajax.Autocompleter = Class.create();
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Object.extend(Object.extend(Ajax.Autocompleter.prototype, Autocompleter.Base.prototype), {
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initialize: function(element, update, url, options) {
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this.baseInitialize(element, update, options);
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this.options.asynchronous = true;
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this.options.onComplete = this.onComplete.bind(this);
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this.options.defaultParams = this.options.parameters || null;
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this.url = url;
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},
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getUpdatedChoices: function() {
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entry = encodeURIComponent(this.options.paramName) + '=' +
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encodeURIComponent(this.getToken());
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this.options.parameters = this.options.callback ?
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this.options.callback(this.element, entry) : entry;
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if(this.options.defaultParams)
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this.options.parameters += '&' + this.options.defaultParams;
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new Ajax.Request(this.url, this.options);
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},
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onComplete: function(request) {
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this.updateChoices(request.responseText);
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}
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});
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// The local array autocompleter. Used when you'd prefer to
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// inject an array of autocompletion options into the page, rather
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// than sending out Ajax queries, which can be quite slow sometimes.
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//
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// The constructor takes four parameters. The first two are, as usual,
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// the id of the monitored textbox, and id of the autocompletion menu.
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// The third is the array you want to autocomplete from, and the fourth
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// is the options block.
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//
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// Extra local autocompletion options:
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// - choices - How many autocompletion choices to offer
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//
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// - partialSearch - If false, the autocompleter will match entered
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// text only at the beginning of strings in the
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// autocomplete array. Defaults to true, which will
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// match text at the beginning of any *word* in the
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// strings in the autocomplete array. If you want to
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// search anywhere in the string, additionally set
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// the option fullSearch to true (default: off).
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//
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// - fullSsearch - Search anywhere in autocomplete array strings.
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//
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// - partialChars - How many characters to enter before triggering
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// a partial match (unlike minChars, which defines
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// how many characters are required to do any match
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// at all). Defaults to 2.
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//
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// - ignoreCase - Whether to ignore case when autocompleting.
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// Defaults to true.
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//
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// It's possible to pass in a custom function as the 'selector'
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// option, if you prefer to write your own autocompletion logic.
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// In that case, the other options above will not apply unless
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// you support them.
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Autocompleter.Local = Class.create();
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Autocompleter.Local.prototype = Object.extend(new Autocompleter.Base(), {
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initialize: function(element, update, array, options) {
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this.baseInitialize(element, update, options);
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this.options.array = array;
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},
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getUpdatedChoices: function() {
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this.updateChoices(this.options.selector(this));
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},
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setOptions: function(options) {
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this.options = Object.extend({
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choices: 10,
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partialSearch: true,
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partialChars: 2,
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ignoreCase: true,
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fullSearch: false,
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selector: function(instance) {
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var ret = []; // Beginning matches
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var partial = []; // Inside matches
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var entry = instance.getToken();
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var count = 0;
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for (var i = 0; i < instance.options.array.length &&
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ret.length < instance.options.choices ; i++) {
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var elem = instance.options.array[i];
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var foundPos = instance.options.ignoreCase ?
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elem.toLowerCase().indexOf(entry.toLowerCase()) :
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elem.indexOf(entry);
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while (foundPos != -1) {
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if (foundPos == 0 && elem.length != entry.length) {
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ret.push("<li><strong>" + elem.substr(0, entry.length) + "</strong>" +
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elem.substr(entry.length) + "</li>");
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break;
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} else if (entry.length >= instance.options.partialChars &&
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instance.options.partialSearch && foundPos != -1) {
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if (instance.options.fullSearch || /\s/.test(elem.substr(foundPos-1,1))) {
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partial.push("<li>" + elem.substr(0, foundPos) + "<strong>" +
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elem.substr(foundPos, entry.length) + "</strong>" + elem.substr(
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foundPos + entry.length) + "</li>");
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break;
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}
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}
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foundPos = instance.options.ignoreCase ?
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elem.toLowerCase().indexOf(entry.toLowerCase(), foundPos + 1) :
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elem.indexOf(entry, foundPos + 1);
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}
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}
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if (partial.length)
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ret = ret.concat(partial.slice(0, instance.options.choices - ret.length))
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return "<ul>" + ret.join('') + "</ul>";
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}
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}, options || {});
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}
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});
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// AJAX in-place editor
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//
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// The constructor takes three parameters. The first is the element
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// that should support in-place editing. The second is the url to submit
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// the changed value to. The server should respond with the updated
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// value (the server might have post-processed it or validation might
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// have prevented it from changing). The third is a hash of options.
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//
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// Supported options are (all are optional and have sensible defaults):
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// - okText - The text of the submit button that submits the changed value
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// to the server (default: "ok")
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// - cancelText - The text of the link that cancels editing (default: "cancel")
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// - savingText - The text being displayed as the AJAX engine communicates
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// with the server (default: "Saving...")
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// - formId - The id given to the <form> element
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// (default: the id of the element to edit plus '-inplaceeditor')
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Ajax.InPlaceEditor = Class.create();
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Ajax.InPlaceEditor.defaultHighlightColor = "#FFFF99";
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Ajax.InPlaceEditor.prototype = {
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initialize: function(element, url, options) {
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this.url = url;
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this.element = $(element);
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this.options = Object.extend({
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okText: "ok",
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cancelText: "cancel",
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savingText: "Saving...",
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clickToEditText: "Click to edit",
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okText: "ok",
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rows: 1,
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onComplete: function(transport, element) {
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new Effect.Highlight(element, {startcolor: this.options.highlightcolor});
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},
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onFailure: function(transport) {
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alert("Error communicating with the server: " + transport.responseText.stripTags());
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},
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callback: function(form) {
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return Form.serialize(form);
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},
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loadingText: 'Loading...',
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savingClassName: 'inplaceeditor-saving',
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formClassName: 'inplaceeditor-form',
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highlightcolor: Ajax.InPlaceEditor.defaultHighlightColor,
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highlightendcolor: "#FFFFFF",
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externalControl: null,
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ajaxOptions: {}
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}, options || {});
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if(!this.options.formId && this.element.id) {
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this.options.formId = this.element.id + "-inplaceeditor";
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if ($(this.options.formId)) {
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// there's already a form with that name, don't specify an id
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this.options.formId = null;
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}
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}
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if (this.options.externalControl) {
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this.options.externalControl = $(this.options.externalControl);
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}
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this.originalBackground = Element.getStyle(this.element, 'background-color');
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if (!this.originalBackground) {
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this.originalBackground = "transparent";
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}
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this.element.title = this.options.clickToEditText;
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this.onclickListener = this.enterEditMode.bindAsEventListener(this);
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this.mouseoverListener = this.enterHover.bindAsEventListener(this);
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this.mouseoutListener = this.leaveHover.bindAsEventListener(this);
|
|
Event.observe(this.element, 'click', this.onclickListener);
|
|
Event.observe(this.element, 'mouseover', this.mouseoverListener);
|
|
Event.observe(this.element, 'mouseout', this.mouseoutListener);
|
|
if (this.options.externalControl) {
|
|
Event.observe(this.options.externalControl, 'click', this.onclickListener);
|
|
Event.observe(this.options.externalControl, 'mouseover', this.mouseoverListener);
|
|
Event.observe(this.options.externalControl, 'mouseout', this.mouseoutListener);
|
|
}
|
|
},
|
|
enterEditMode: function() {
|
|
if (this.saving) return;
|
|
if (this.editing) return;
|
|
this.editing = true;
|
|
this.onEnterEditMode();
|
|
if (this.options.externalControl) {
|
|
Element.hide(this.options.externalControl);
|
|
}
|
|
Element.hide(this.element);
|
|
this.form = this.getForm();
|
|
this.element.parentNode.insertBefore(this.form, this.element);
|
|
},
|
|
getForm: function() {
|
|
form = document.createElement("form");
|
|
form.id = this.options.formId;
|
|
Element.addClassName(form, this.options.formClassName)
|
|
form.onsubmit = this.onSubmit.bind(this);
|
|
|
|
this.createEditField(form);
|
|
|
|
if (this.options.textarea) {
|
|
var br = document.createElement("br");
|
|
form.appendChild(br);
|
|
}
|
|
|
|
okButton = document.createElement("input");
|
|
okButton.type = "submit";
|
|
okButton.value = this.options.okText;
|
|
form.appendChild(okButton);
|
|
|
|
cancelLink = document.createElement("a");
|
|
cancelLink.href = "#";
|
|
cancelLink.appendChild(document.createTextNode(this.options.cancelText));
|
|
cancelLink.onclick = this.onclickCancel.bind(this);
|
|
form.appendChild(cancelLink);
|
|
return form;
|
|
},
|
|
createEditField: function(form) {
|
|
if (this.options.rows == 1) {
|
|
this.options.textarea = false;
|
|
var textField = document.createElement("input");
|
|
textField.type = "text";
|
|
textField.name = "value";
|
|
textField.value = this.getText();
|
|
textField.style.backgroundColor = this.options.highlightcolor;
|
|
var size = this.options.size || this.options.cols || 0;
|
|
if (size != 0)
|
|
textField.size = size;
|
|
form.appendChild(textField);
|
|
this.editField = textField;
|
|
} else {
|
|
this.options.textarea = true;
|
|
var textArea = document.createElement("textarea");
|
|
textArea.name = "value";
|
|
textArea.value = this.getText();
|
|
textArea.rows = this.options.rows;
|
|
textArea.cols = this.options.cols || 40;
|
|
form.appendChild(textArea);
|
|
this.editField = textArea;
|
|
}
|
|
},
|
|
getText: function() {
|
|
if (this.options.loadTextURL) {
|
|
this.loadExternalText();
|
|
return this.options.loadingText;
|
|
} else {
|
|
return this.element.innerHTML;
|
|
}
|
|
},
|
|
loadExternalText: function() {
|
|
new Ajax.Request(
|
|
this.options.loadTextURL,
|
|
{
|
|
asynchronous: true,
|
|
onComplete: this.onLoadedExternalText.bind(this)
|
|
}
|
|
);
|
|
},
|
|
onLoadedExternalText: function(transport) {
|
|
this.form.value.value = transport.responseText.stripTags();
|
|
},
|
|
onclickCancel: function() {
|
|
this.onComplete();
|
|
this.leaveEditMode();
|
|
return false;
|
|
},
|
|
onFailure: function(transport) {
|
|
this.options.onFailure(transport);
|
|
if (this.oldInnerHTML) {
|
|
this.element.innerHTML = this.oldInnerHTML;
|
|
this.oldInnerHTML = null;
|
|
}
|
|
return false;
|
|
},
|
|
onSubmit: function() {
|
|
this.saving = true;
|
|
new Ajax.Updater(
|
|
{
|
|
success: this.element,
|
|
// don't update on failure (this could be an option)
|
|
failure: null
|
|
},
|
|
this.url,
|
|
Object.extend({
|
|
parameters: this.options.callback(this.form, this.editField.value),
|
|
onComplete: this.onComplete.bind(this),
|
|
onFailure: this.onFailure.bind(this)
|
|
}, this.options.ajaxOptions)
|
|
);
|
|
this.onLoading();
|
|
return false;
|
|
},
|
|
onLoading: function() {
|
|
this.saving = true;
|
|
this.removeForm();
|
|
this.leaveHover();
|
|
this.showSaving();
|
|
},
|
|
showSaving: function() {
|
|
this.oldInnerHTML = this.element.innerHTML;
|
|
this.element.innerHTML = this.options.savingText;
|
|
Element.addClassName(this.element, this.options.savingClassName);
|
|
this.element.style.backgroundColor = this.originalBackground;
|
|
Element.show(this.element);
|
|
},
|
|
removeForm: function() {
|
|
if(this.form) {
|
|
Element.remove(this.form);
|
|
this.form = null;
|
|
}
|
|
},
|
|
enterHover: function() {
|
|
if (this.saving) return;
|
|
this.element.style.backgroundColor = this.options.highlightcolor;
|
|
if (this.effect) {
|
|
this.effect.cancel();
|
|
}
|
|
Element.addClassName(this.element, this.options.hoverClassName)
|
|
},
|
|
leaveHover: function() {
|
|
if (this.options.backgroundColor) {
|
|
this.element.style.backgroundColor = this.oldBackground;
|
|
}
|
|
Element.removeClassName(this.element, this.options.hoverClassName)
|
|
if (this.saving) return;
|
|
this.effect = new Effect.Highlight(this.element, {
|
|
startcolor: this.options.highlightcolor,
|
|
endcolor: this.options.highlightendcolor,
|
|
restorecolor: this.originalBackground
|
|
});
|
|
},
|
|
leaveEditMode: function() {
|
|
Element.removeClassName(this.element, this.options.savingClassName);
|
|
this.removeForm();
|
|
this.leaveHover();
|
|
this.element.style.backgroundColor = this.originalBackground;
|
|
Element.show(this.element);
|
|
if (this.options.externalControl) {
|
|
Element.show(this.options.externalControl);
|
|
}
|
|
this.editing = false;
|
|
this.saving = false;
|
|
this.oldInnerHTML = null;
|
|
this.onLeaveEditMode();
|
|
},
|
|
onComplete: function(transport) {
|
|
this.leaveEditMode();
|
|
this.options.onComplete.bind(this)(transport, this.element);
|
|
},
|
|
onEnterEditMode: function() {},
|
|
onLeaveEditMode: function() {},
|
|
dispose: function() {
|
|
if (this.oldInnerHTML) {
|
|
this.element.innerHTML = this.oldInnerHTML;
|
|
}
|
|
this.leaveEditMode();
|
|
Event.stopObserving(this.element, 'click', this.onclickListener);
|
|
Event.stopObserving(this.element, 'mouseover', this.mouseoverListener);
|
|
Event.stopObserving(this.element, 'mouseout', this.mouseoutListener);
|
|
if (this.options.externalControl) {
|
|
Event.stopObserving(this.options.externalControl, 'click', this.onclickListener);
|
|
Event.stopObserving(this.options.externalControl, 'mouseover', this.mouseoverListener);
|
|
Event.stopObserving(this.options.externalControl, 'mouseout', this.mouseoutListener);
|
|
}
|
|
}
|
|
}; |