michael@0: // script.aculo.us controls.js v1.7.1_beta2, Tue May 15 15:15:45 EDT 2007
michael@0: 
michael@0: // Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
michael@0: //           (c) 2005-2007 Ivan Krstic (http://blogs.law.harvard.edu/ivan)
michael@0: //           (c) 2005-2007 Jon Tirsen (http://www.tirsen.com)
michael@0: // Contributors:
michael@0: //  Richard Livsey
michael@0: //  Rahul Bhargava
michael@0: //  Rob Wills
michael@0: // 
michael@0: // script.aculo.us is freely distributable under the terms of an MIT-style license.
michael@0: // For details, see the script.aculo.us web site: http://script.aculo.us/
michael@0: 
michael@0: // Autocompleter.Base handles all the autocompletion functionality 
michael@0: // that's independent of the data source for autocompletion. This
michael@0: // includes drawing the autocompletion menu, observing keyboard
michael@0: // and mouse events, and similar.
michael@0: //
michael@0: // Specific autocompleters need to provide, at the very least, 
michael@0: // a getUpdatedChoices function that will be invoked every time
michael@0: // the text inside the monitored textbox changes. This method 
michael@0: // should get the text for which to provide autocompletion by
michael@0: // invoking this.getToken(), NOT by directly accessing
michael@0: // this.element.value. This is to allow incremental tokenized
michael@0: // autocompletion. Specific auto-completion logic (AJAX, etc)
michael@0: // belongs in getUpdatedChoices.
michael@0: //
michael@0: // Tokenized incremental autocompletion is enabled automatically
michael@0: // when an autocompleter is instantiated with the 'tokens' option
michael@0: // in the options parameter, e.g.:
michael@0: // new Ajax.Autocompleter('id','upd', '/url/', { tokens: ',' });
michael@0: // will incrementally autocomplete with a comma as the token.
michael@0: // Additionally, ',' in the above example can be replaced with
michael@0: // a token array, e.g. { tokens: [',', '\n'] } which
michael@0: // enables autocompletion on multiple tokens. This is most 
michael@0: // useful when one of the tokens is \n (a newline), as it 
michael@0: // allows smart autocompletion after linebreaks.
michael@0: 
michael@0: if(typeof Effect == 'undefined')
michael@0:   throw("controls.js requires including script.aculo.us' effects.js library");
michael@0: 
michael@0: var Autocompleter = {}
michael@0: Autocompleter.Base = function() {};
michael@0: Autocompleter.Base.prototype = {
michael@0:   baseInitialize: function(element, update, options) {
michael@0:     element          = $(element)
michael@0:     this.element     = element; 
michael@0:     this.update      = $(update);  
michael@0:     this.hasFocus    = false; 
michael@0:     this.changed     = false; 
michael@0:     this.active      = false; 
michael@0:     this.index       = 0;     
michael@0:     this.entryCount  = 0;
michael@0: 
michael@0:     if(this.setOptions)
michael@0:       this.setOptions(options);
michael@0:     else
michael@0:       this.options = options || {};
michael@0: 
michael@0:     this.options.paramName    = this.options.paramName || this.element.name;
michael@0:     this.options.tokens       = this.options.tokens || [];
michael@0:     this.options.frequency    = this.options.frequency || 0.4;
michael@0:     this.options.minChars     = this.options.minChars || 1;
michael@0:     this.options.onShow       = this.options.onShow || 
michael@0:       function(element, update){ 
michael@0:         if(!update.style.position || update.style.position=='absolute') {
michael@0:           update.style.position = 'absolute';
michael@0:           Position.clone(element, update, {
michael@0:             setHeight: false, 
michael@0:             offsetTop: element.offsetHeight
michael@0:           });
michael@0:         }
michael@0:         Effect.Appear(update,{duration:0.15});
michael@0:       };
michael@0:     this.options.onHide = this.options.onHide || 
michael@0:       function(element, update){ new Effect.Fade(update,{duration:0.15}) };
michael@0: 
michael@0:     if(typeof(this.options.tokens) == 'string') 
michael@0:       this.options.tokens = new Array(this.options.tokens);
michael@0: 
michael@0:     this.observer = null;
michael@0:     
michael@0:     this.element.setAttribute('autocomplete','off');
michael@0: 
michael@0:     Element.hide(this.update);
michael@0: 
michael@0:     Event.observe(this.element, 'blur', this.onBlur.bindAsEventListener(this));
michael@0:     Event.observe(this.element, 'keypress', this.onKeyPress.bindAsEventListener(this));
michael@0: 
michael@0:     // Turn autocomplete back on when the user leaves the page, so that the
michael@0:     // field's value will be remembered on Mozilla-based browsers.
michael@0:     Event.observe(window, 'beforeunload', function(){ 
michael@0:       element.setAttribute('autocomplete', 'on'); 
michael@0:     });
michael@0:   },
michael@0: 
michael@0:   show: function() {
michael@0:     if(Element.getStyle(this.update, 'display')=='none') this.options.onShow(this.element, this.update);
michael@0:     if(!this.iefix && 
michael@0:       (Prototype.Browser.IE) &&
michael@0:       (Element.getStyle(this.update, 'position')=='absolute')) {
michael@0:       new Insertion.After(this.update, 
michael@0:        '<iframe id="' + this.update.id + '_iefix" '+
michael@0:        'style="display:none;position:absolute;filter:progid:DXImageTransform.Microsoft.Alpha(opacity=0);" ' +
michael@0:        'src="javascript:false;" frameborder="0" scrolling="no"></iframe>');
michael@0:       this.iefix = $(this.update.id+'_iefix');
michael@0:     }
michael@0:     if(this.iefix) setTimeout(this.fixIEOverlapping.bind(this), 50);
michael@0:   },
michael@0:   
michael@0:   fixIEOverlapping: function() {
michael@0:     Position.clone(this.update, this.iefix, {setTop:(!this.update.style.height)});
michael@0:     this.iefix.style.zIndex = 1;
michael@0:     this.update.style.zIndex = 2;
michael@0:     Element.show(this.iefix);
michael@0:   },
michael@0: 
michael@0:   hide: function() {
michael@0:     this.stopIndicator();
michael@0:     if(Element.getStyle(this.update, 'display')!='none') this.options.onHide(this.element, this.update);
michael@0:     if(this.iefix) Element.hide(this.iefix);
michael@0:   },
michael@0: 
michael@0:   startIndicator: function() {
michael@0:     if(this.options.indicator) Element.show(this.options.indicator);
michael@0:   },
michael@0: 
michael@0:   stopIndicator: function() {
michael@0:     if(this.options.indicator) Element.hide(this.options.indicator);
michael@0:   },
michael@0: 
michael@0:   onKeyPress: function(event) {
michael@0:     if(this.active)
michael@0:       switch(event.keyCode) {
michael@0:        case Event.KEY_TAB:
michael@0:        case Event.KEY_RETURN:
michael@0:          this.selectEntry();
michael@0:          Event.stop(event);
michael@0:        case Event.KEY_ESC:
michael@0:          this.hide();
michael@0:          this.active = false;
michael@0:          Event.stop(event);
michael@0:          return;
michael@0:        case Event.KEY_LEFT:
michael@0:        case Event.KEY_RIGHT:
michael@0:          return;
michael@0:        case Event.KEY_UP:
michael@0:          this.markPrevious();
michael@0:          this.render();
michael@0:          if(Prototype.Browser.WebKit) Event.stop(event);
michael@0:          return;
michael@0:        case Event.KEY_DOWN:
michael@0:          this.markNext();
michael@0:          this.render();
michael@0:          if(Prototype.Browser.WebKit) Event.stop(event);
michael@0:          return;
michael@0:       }
michael@0:      else 
michael@0:        if(event.keyCode==Event.KEY_TAB || event.keyCode==Event.KEY_RETURN || 
michael@0:          (Prototype.Browser.WebKit > 0 && event.keyCode == 0)) return;
michael@0: 
michael@0:     this.changed = true;
michael@0:     this.hasFocus = true;
michael@0: 
michael@0:     if(this.observer) clearTimeout(this.observer);
michael@0:       this.observer = 
michael@0:         setTimeout(this.onObserverEvent.bind(this), this.options.frequency*1000);
michael@0:   },
michael@0: 
michael@0:   activate: function() {
michael@0:     this.changed = false;
michael@0:     this.hasFocus = true;
michael@0:     this.getUpdatedChoices();
michael@0:   },
michael@0: 
michael@0:   onHover: function(event) {
michael@0:     var element = Event.findElement(event, 'LI');
michael@0:     if(this.index != element.autocompleteIndex) 
michael@0:     {
michael@0:         this.index = element.autocompleteIndex;
michael@0:         this.render();
michael@0:     }
michael@0:     Event.stop(event);
michael@0:   },
michael@0:   
michael@0:   onClick: function(event) {
michael@0:     var element = Event.findElement(event, 'LI');
michael@0:     this.index = element.autocompleteIndex;
michael@0:     this.selectEntry();
michael@0:     this.hide();
michael@0:   },
michael@0:   
michael@0:   onBlur: function(event) {
michael@0:     // needed to make click events working
michael@0:     setTimeout(this.hide.bind(this), 250);
michael@0:     this.hasFocus = false;
michael@0:     this.active = false;     
michael@0:   }, 
michael@0:   
michael@0:   render: function() {
michael@0:     if(this.entryCount > 0) {
michael@0:       for (var i = 0; i < this.entryCount; i++)
michael@0:         this.index==i ? 
michael@0:           Element.addClassName(this.getEntry(i),"selected") : 
michael@0:           Element.removeClassName(this.getEntry(i),"selected");
michael@0:       if(this.hasFocus) { 
michael@0:         this.show();
michael@0:         this.active = true;
michael@0:       }
michael@0:     } else {
michael@0:       this.active = false;
michael@0:       this.hide();
michael@0:     }
michael@0:   },
michael@0:   
michael@0:   markPrevious: function() {
michael@0:     if(this.index > 0) this.index--
michael@0:       else this.index = this.entryCount-1;
michael@0:     this.getEntry(this.index).scrollIntoView(true);
michael@0:   },
michael@0:   
michael@0:   markNext: function() {
michael@0:     if(this.index < this.entryCount-1) this.index++
michael@0:       else this.index = 0;
michael@0:     this.getEntry(this.index).scrollIntoView(false);
michael@0:   },
michael@0:   
michael@0:   getEntry: function(index) {
michael@0:     return this.update.firstChild.childNodes[index];
michael@0:   },
michael@0:   
michael@0:   getCurrentEntry: function() {
michael@0:     return this.getEntry(this.index);
michael@0:   },
michael@0:   
michael@0:   selectEntry: function() {
michael@0:     this.active = false;
michael@0:     this.updateElement(this.getCurrentEntry());
michael@0:   },
michael@0: 
michael@0:   updateElement: function(selectedElement) {
michael@0:     if (this.options.updateElement) {
michael@0:       this.options.updateElement(selectedElement);
michael@0:       return;
michael@0:     }
michael@0:     var value = '';
michael@0:     if (this.options.select) {
michael@0:       var nodes = document.getElementsByClassName(this.options.select, selectedElement) || [];
michael@0:       if(nodes.length>0) value = Element.collectTextNodes(nodes[0], this.options.select);
michael@0:     } else
michael@0:       value = Element.collectTextNodesIgnoreClass(selectedElement, 'informal');
michael@0:     
michael@0:     var lastTokenPos = this.findLastToken();
michael@0:     if (lastTokenPos != -1) {
michael@0:       var newValue = this.element.value.substr(0, lastTokenPos + 1);
michael@0:       var whitespace = this.element.value.substr(lastTokenPos + 1).match(/^\s+/);
michael@0:       if (whitespace)
michael@0:         newValue += whitespace[0];
michael@0:       this.element.value = newValue + value;
michael@0:     } else {
michael@0:       this.element.value = value;
michael@0:     }
michael@0:     this.element.focus();
michael@0:     
michael@0:     if (this.options.afterUpdateElement)
michael@0:       this.options.afterUpdateElement(this.element, selectedElement);
michael@0:   },
michael@0: 
michael@0:   updateChoices: function(choices) {
michael@0:     if(!this.changed && this.hasFocus) {
michael@0:       this.update.innerHTML = choices;
michael@0:       Element.cleanWhitespace(this.update);
michael@0:       Element.cleanWhitespace(this.update.down());
michael@0: 
michael@0:       if(this.update.firstChild && this.update.down().childNodes) {
michael@0:         this.entryCount = 
michael@0:           this.update.down().childNodes.length;
michael@0:         for (var i = 0; i < this.entryCount; i++) {
michael@0:           var entry = this.getEntry(i);
michael@0:           entry.autocompleteIndex = i;
michael@0:           this.addObservers(entry);
michael@0:         }
michael@0:       } else { 
michael@0:         this.entryCount = 0;
michael@0:       }
michael@0: 
michael@0:       this.stopIndicator();
michael@0:       this.index = 0;
michael@0:       
michael@0:       if(this.entryCount==1 && this.options.autoSelect) {
michael@0:         this.selectEntry();
michael@0:         this.hide();
michael@0:       } else {
michael@0:         this.render();
michael@0:       }
michael@0:     }
michael@0:   },
michael@0: 
michael@0:   addObservers: function(element) {
michael@0:     Event.observe(element, "mouseover", this.onHover.bindAsEventListener(this));
michael@0:     Event.observe(element, "click", this.onClick.bindAsEventListener(this));
michael@0:   },
michael@0: 
michael@0:   onObserverEvent: function() {
michael@0:     this.changed = false;   
michael@0:     if(this.getToken().length>=this.options.minChars) {
michael@0:       this.getUpdatedChoices();
michael@0:     } else {
michael@0:       this.active = false;
michael@0:       this.hide();
michael@0:     }
michael@0:   },
michael@0: 
michael@0:   getToken: function() {
michael@0:     var tokenPos = this.findLastToken();
michael@0:     if (tokenPos != -1)
michael@0:       var ret = this.element.value.substr(tokenPos + 1).replace(/^\s+/,'').replace(/\s+$/,'');
michael@0:     else
michael@0:       var ret = this.element.value;
michael@0: 
michael@0:     return /\n/.test(ret) ? '' : ret;
michael@0:   },
michael@0: 
michael@0:   findLastToken: function() {
michael@0:     var lastTokenPos = -1;
michael@0: 
michael@0:     for (var i=0; i<this.options.tokens.length; i++) {
michael@0:       var thisTokenPos = this.element.value.lastIndexOf(this.options.tokens[i]);
michael@0:       if (thisTokenPos > lastTokenPos)
michael@0:         lastTokenPos = thisTokenPos;
michael@0:     }
michael@0:     return lastTokenPos;
michael@0:   }
michael@0: }
michael@0: 
michael@0: Ajax.Autocompleter = Class.create();
michael@0: Object.extend(Object.extend(Ajax.Autocompleter.prototype, Autocompleter.Base.prototype), {
michael@0:   initialize: function(element, update, url, options) {
michael@0:     this.baseInitialize(element, update, options);
michael@0:     this.options.asynchronous  = true;
michael@0:     this.options.onComplete    = this.onComplete.bind(this);
michael@0:     this.options.defaultParams = this.options.parameters || null;
michael@0:     this.url                   = url;
michael@0:   },
michael@0: 
michael@0:   getUpdatedChoices: function() {
michael@0:     this.startIndicator();
michael@0:     
michael@0:     var entry = encodeURIComponent(this.options.paramName) + '=' + 
michael@0:       encodeURIComponent(this.getToken());
michael@0: 
michael@0:     this.options.parameters = this.options.callback ?
michael@0:       this.options.callback(this.element, entry) : entry;
michael@0: 
michael@0:     if(this.options.defaultParams) 
michael@0:       this.options.parameters += '&' + this.options.defaultParams;
michael@0:     
michael@0:     new Ajax.Request(this.url, this.options);
michael@0:   },
michael@0: 
michael@0:   onComplete: function(request) {
michael@0:     this.updateChoices(request.responseText);
michael@0:   }
michael@0: 
michael@0: });
michael@0: 
michael@0: // The local array autocompleter. Used when you'd prefer to
michael@0: // inject an array of autocompletion options into the page, rather
michael@0: // than sending out Ajax queries, which can be quite slow sometimes.
michael@0: //
michael@0: // The constructor takes four parameters. The first two are, as usual,
michael@0: // the id of the monitored textbox, and id of the autocompletion menu.
michael@0: // The third is the array you want to autocomplete from, and the fourth
michael@0: // is the options block.
michael@0: //
michael@0: // Extra local autocompletion options:
michael@0: // - choices - How many autocompletion choices to offer
michael@0: //
michael@0: // - partialSearch - If false, the autocompleter will match entered
michael@0: //                    text only at the beginning of strings in the 
michael@0: //                    autocomplete array. Defaults to true, which will
michael@0: //                    match text at the beginning of any *word* in the
michael@0: //                    strings in the autocomplete array. If you want to
michael@0: //                    search anywhere in the string, additionally set
michael@0: //                    the option fullSearch to true (default: off).
michael@0: //
michael@0: // - fullSsearch - Search anywhere in autocomplete array strings.
michael@0: //
michael@0: // - partialChars - How many characters to enter before triggering
michael@0: //                   a partial match (unlike minChars, which defines
michael@0: //                   how many characters are required to do any match
michael@0: //                   at all). Defaults to 2.
michael@0: //
michael@0: // - ignoreCase - Whether to ignore case when autocompleting.
michael@0: //                 Defaults to true.
michael@0: //
michael@0: // It's possible to pass in a custom function as the 'selector' 
michael@0: // option, if you prefer to write your own autocompletion logic.
michael@0: // In that case, the other options above will not apply unless
michael@0: // you support them.
michael@0: 
michael@0: Autocompleter.Local = Class.create();
michael@0: Autocompleter.Local.prototype = Object.extend(new Autocompleter.Base(), {
michael@0:   initialize: function(element, update, array, options) {
michael@0:     this.baseInitialize(element, update, options);
michael@0:     this.options.array = array;
michael@0:   },
michael@0: 
michael@0:   getUpdatedChoices: function() {
michael@0:     this.updateChoices(this.options.selector(this));
michael@0:   },
michael@0: 
michael@0:   setOptions: function(options) {
michael@0:     this.options = Object.extend({
michael@0:       choices: 10,
michael@0:       partialSearch: true,
michael@0:       partialChars: 2,
michael@0:       ignoreCase: true,
michael@0:       fullSearch: false,
michael@0:       selector: function(instance) {
michael@0:         var ret       = []; // Beginning matches
michael@0:         var partial   = []; // Inside matches
michael@0:         var entry     = instance.getToken();
michael@0:         var count     = 0;
michael@0: 
michael@0:         for (var i = 0; i < instance.options.array.length &&  
michael@0:           ret.length < instance.options.choices ; i++) { 
michael@0: 
michael@0:           var elem = instance.options.array[i];
michael@0:           var foundPos = instance.options.ignoreCase ? 
michael@0:             elem.toLowerCase().indexOf(entry.toLowerCase()) : 
michael@0:             elem.indexOf(entry);
michael@0: 
michael@0:           while (foundPos != -1) {
michael@0:             if (foundPos == 0 && elem.length != entry.length) { 
michael@0:               ret.push("<li><strong>" + elem.substr(0, entry.length) + "</strong>" + 
michael@0:                 elem.substr(entry.length) + "</li>");
michael@0:               break;
michael@0:             } else if (entry.length >= instance.options.partialChars && 
michael@0:               instance.options.partialSearch && foundPos != -1) {
michael@0:               if (instance.options.fullSearch || /\s/.test(elem.substr(foundPos-1,1))) {
michael@0:                 partial.push("<li>" + elem.substr(0, foundPos) + "<strong>" +
michael@0:                   elem.substr(foundPos, entry.length) + "</strong>" + elem.substr(
michael@0:                   foundPos + entry.length) + "</li>");
michael@0:                 break;
michael@0:               }
michael@0:             }
michael@0: 
michael@0:             foundPos = instance.options.ignoreCase ? 
michael@0:               elem.toLowerCase().indexOf(entry.toLowerCase(), foundPos + 1) : 
michael@0:               elem.indexOf(entry, foundPos + 1);
michael@0: 
michael@0:           }
michael@0:         }
michael@0:         if (partial.length)
michael@0:           ret = ret.concat(partial.slice(0, instance.options.choices - ret.length))
michael@0:         return "<ul>" + ret.join('') + "</ul>";
michael@0:       }
michael@0:     }, options || {});
michael@0:   }
michael@0: });
michael@0: 
michael@0: // AJAX in-place editor
michael@0: //
michael@0: // see documentation on http://wiki.script.aculo.us/scriptaculous/show/Ajax.InPlaceEditor
michael@0: 
michael@0: // Use this if you notice weird scrolling problems on some browsers,
michael@0: // the DOM might be a bit confused when this gets called so do this
michael@0: // waits 1 ms (with setTimeout) until it does the activation
michael@0: Field.scrollFreeActivate = function(field) {
michael@0:   setTimeout(function() {
michael@0:     Field.activate(field);
michael@0:   }, 1);
michael@0: }
michael@0: 
michael@0: Ajax.InPlaceEditor = Class.create();
michael@0: Ajax.InPlaceEditor.defaultHighlightColor = "#FFFF99";
michael@0: Ajax.InPlaceEditor.prototype = {
michael@0:   initialize: function(element, url, options) {
michael@0:     this.url = url;
michael@0:     this.element = $(element);
michael@0: 
michael@0:     this.options = Object.extend({
michael@0:       paramName: "value",
michael@0:       okButton: true,
michael@0:       okLink: false,
michael@0:       okText: "ok",
michael@0:       cancelButton: false,
michael@0:       cancelLink: true,
michael@0:       cancelText: "cancel",
michael@0:       textBeforeControls: '',
michael@0:       textBetweenControls: '',
michael@0:       textAfterControls: '',
michael@0:       savingText: "Saving...",
michael@0:       clickToEditText: "Click to edit",
michael@0:       okText: "ok",
michael@0:       rows: 1,
michael@0:       onComplete: function(transport, element) {
michael@0:         new Effect.Highlight(element, {startcolor: this.options.highlightcolor});
michael@0:       },
michael@0:       onFailure: function(transport) {
michael@0:         alert("Error communicating with the server: " + transport.responseText.stripTags());
michael@0:       },
michael@0:       callback: function(form) {
michael@0:         return Form.serialize(form);
michael@0:       },
michael@0:       handleLineBreaks: true,
michael@0:       loadingText: 'Loading...',
michael@0:       savingClassName: 'inplaceeditor-saving',
michael@0:       loadingClassName: 'inplaceeditor-loading',
michael@0:       formClassName: 'inplaceeditor-form',
michael@0:       highlightcolor: Ajax.InPlaceEditor.defaultHighlightColor,
michael@0:       highlightendcolor: "#FFFFFF",
michael@0:       externalControl: null,
michael@0:       submitOnBlur: false,
michael@0:       ajaxOptions: {},
michael@0:       evalScripts: false
michael@0:     }, options || {});
michael@0: 
michael@0:     if(!this.options.formId && this.element.id) {
michael@0:       this.options.formId = this.element.id + "-inplaceeditor";
michael@0:       if ($(this.options.formId)) {
michael@0:         // there's already a form with that name, don't specify an id
michael@0:         this.options.formId = null;
michael@0:       }
michael@0:     }
michael@0:     
michael@0:     if (this.options.externalControl) {
michael@0:       this.options.externalControl = $(this.options.externalControl);
michael@0:     }
michael@0:     
michael@0:     this.originalBackground = Element.getStyle(this.element, 'background-color');
michael@0:     if (!this.originalBackground) {
michael@0:       this.originalBackground = "transparent";
michael@0:     }
michael@0:     
michael@0:     this.element.title = this.options.clickToEditText;
michael@0:     
michael@0:     this.onclickListener = this.enterEditMode.bindAsEventListener(this);
michael@0:     this.mouseoverListener = this.enterHover.bindAsEventListener(this);
michael@0:     this.mouseoutListener = this.leaveHover.bindAsEventListener(this);
michael@0:     Event.observe(this.element, 'click', this.onclickListener);
michael@0:     Event.observe(this.element, 'mouseover', this.mouseoverListener);
michael@0:     Event.observe(this.element, 'mouseout', this.mouseoutListener);
michael@0:     if (this.options.externalControl) {
michael@0:       Event.observe(this.options.externalControl, 'click', this.onclickListener);
michael@0:       Event.observe(this.options.externalControl, 'mouseover', this.mouseoverListener);
michael@0:       Event.observe(this.options.externalControl, 'mouseout', this.mouseoutListener);
michael@0:     }
michael@0:   },
michael@0:   enterEditMode: function(evt) {
michael@0:     if (this.saving) return;
michael@0:     if (this.editing) return;
michael@0:     this.editing = true;
michael@0:     this.onEnterEditMode();
michael@0:     if (this.options.externalControl) {
michael@0:       Element.hide(this.options.externalControl);
michael@0:     }
michael@0:     Element.hide(this.element);
michael@0:     this.createForm();
michael@0:     this.element.parentNode.insertBefore(this.form, this.element);
michael@0:     if (!this.options.loadTextURL) Field.scrollFreeActivate(this.editField);
michael@0:     // stop the event to avoid a page refresh in Safari
michael@0:     if (evt) {
michael@0:       Event.stop(evt);
michael@0:     }
michael@0:     return false;
michael@0:   },
michael@0:   createForm: function() {
michael@0:     this.form = document.createElement("form");
michael@0:     this.form.id = this.options.formId;
michael@0:     Element.addClassName(this.form, this.options.formClassName)
michael@0:     this.form.onsubmit = this.onSubmit.bind(this);
michael@0: 
michael@0:     this.createEditField();
michael@0: 
michael@0:     if (this.options.textarea) {
michael@0:       var br = document.createElement("br");
michael@0:       this.form.appendChild(br);
michael@0:     }
michael@0:     
michael@0:     if (this.options.textBeforeControls)
michael@0:       this.form.appendChild(document.createTextNode(this.options.textBeforeControls));
michael@0: 
michael@0:     if (this.options.okButton) {
michael@0:       var okButton = document.createElement("input");
michael@0:       okButton.type = "submit";
michael@0:       okButton.value = this.options.okText;
michael@0:       okButton.className = 'editor_ok_button';
michael@0:       this.form.appendChild(okButton);
michael@0:     }
michael@0:     
michael@0:     if (this.options.okLink) {
michael@0:       var okLink = document.createElement("a");
michael@0:       okLink.href = "#";
michael@0:       okLink.appendChild(document.createTextNode(this.options.okText));
michael@0:       okLink.onclick = this.onSubmit.bind(this);
michael@0:       okLink.className = 'editor_ok_link';
michael@0:       this.form.appendChild(okLink);
michael@0:     }
michael@0:     
michael@0:     if (this.options.textBetweenControls && 
michael@0:       (this.options.okLink || this.options.okButton) && 
michael@0:       (this.options.cancelLink || this.options.cancelButton))
michael@0:       this.form.appendChild(document.createTextNode(this.options.textBetweenControls));
michael@0:       
michael@0:     if (this.options.cancelButton) {
michael@0:       var cancelButton = document.createElement("input");
michael@0:       cancelButton.type = "submit";
michael@0:       cancelButton.value = this.options.cancelText;
michael@0:       cancelButton.onclick = this.onclickCancel.bind(this);
michael@0:       cancelButton.className = 'editor_cancel_button';
michael@0:       this.form.appendChild(cancelButton);
michael@0:     }
michael@0: 
michael@0:     if (this.options.cancelLink) {
michael@0:       var cancelLink = document.createElement("a");
michael@0:       cancelLink.href = "#";
michael@0:       cancelLink.appendChild(document.createTextNode(this.options.cancelText));
michael@0:       cancelLink.onclick = this.onclickCancel.bind(this);
michael@0:       cancelLink.className = 'editor_cancel editor_cancel_link';      
michael@0:       this.form.appendChild(cancelLink);
michael@0:     }
michael@0:     
michael@0:     if (this.options.textAfterControls)
michael@0:       this.form.appendChild(document.createTextNode(this.options.textAfterControls));
michael@0:   },
michael@0:   hasHTMLLineBreaks: function(string) {
michael@0:     if (!this.options.handleLineBreaks) return false;
michael@0:     return string.match(/<br/i) || string.match(/<p>/i);
michael@0:   },
michael@0:   convertHTMLLineBreaks: function(string) {
michael@0:     return string.replace(/<br>/gi, "\n").replace(/<br\/>/gi, "\n").replace(/<\/p>/gi, "\n").replace(/<p>/gi, "");
michael@0:   },
michael@0:   createEditField: function() {
michael@0:     var text;
michael@0:     if(this.options.loadTextURL) {
michael@0:       text = this.options.loadingText;
michael@0:     } else {
michael@0:       text = this.getText();
michael@0:     }
michael@0: 
michael@0:     var obj = this;
michael@0:     
michael@0:     if (this.options.rows == 1 && !this.hasHTMLLineBreaks(text)) {
michael@0:       this.options.textarea = false;
michael@0:       var textField = document.createElement("input");
michael@0:       textField.obj = this;
michael@0:       textField.type = "text";
michael@0:       textField.name = this.options.paramName;
michael@0:       textField.value = text;
michael@0:       textField.style.backgroundColor = this.options.highlightcolor;
michael@0:       textField.className = 'editor_field';
michael@0:       var size = this.options.size || this.options.cols || 0;
michael@0:       if (size != 0) textField.size = size;
michael@0:       if (this.options.submitOnBlur)
michael@0:         textField.onblur = this.onSubmit.bind(this);
michael@0:       this.editField = textField;
michael@0:     } else {
michael@0:       this.options.textarea = true;
michael@0:       var textArea = document.createElement("textarea");
michael@0:       textArea.obj = this;
michael@0:       textArea.name = this.options.paramName;
michael@0:       textArea.value = this.convertHTMLLineBreaks(text);
michael@0:       textArea.rows = this.options.rows;
michael@0:       textArea.cols = this.options.cols || 40;
michael@0:       textArea.className = 'editor_field';      
michael@0:       if (this.options.submitOnBlur)
michael@0:         textArea.onblur = this.onSubmit.bind(this);
michael@0:       this.editField = textArea;
michael@0:     }
michael@0:     
michael@0:     if(this.options.loadTextURL) {
michael@0:       this.loadExternalText();
michael@0:     }
michael@0:     this.form.appendChild(this.editField);
michael@0:   },
michael@0:   getText: function() {
michael@0:     return this.element.innerHTML;
michael@0:   },
michael@0:   loadExternalText: function() {
michael@0:     Element.addClassName(this.form, this.options.loadingClassName);
michael@0:     this.editField.disabled = true;
michael@0:     new Ajax.Request(
michael@0:       this.options.loadTextURL,
michael@0:       Object.extend({
michael@0:         asynchronous: true,
michael@0:         onComplete: this.onLoadedExternalText.bind(this)
michael@0:       }, this.options.ajaxOptions)
michael@0:     );
michael@0:   },
michael@0:   onLoadedExternalText: function(transport) {
michael@0:     Element.removeClassName(this.form, this.options.loadingClassName);
michael@0:     this.editField.disabled = false;
michael@0:     this.editField.value = transport.responseText.stripTags();
michael@0:     Field.scrollFreeActivate(this.editField);
michael@0:   },
michael@0:   onclickCancel: function() {
michael@0:     this.onComplete();
michael@0:     this.leaveEditMode();
michael@0:     return false;
michael@0:   },
michael@0:   onFailure: function(transport) {
michael@0:     this.options.onFailure(transport);
michael@0:     if (this.oldInnerHTML) {
michael@0:       this.element.innerHTML = this.oldInnerHTML;
michael@0:       this.oldInnerHTML = null;
michael@0:     }
michael@0:     return false;
michael@0:   },
michael@0:   onSubmit: function() {
michael@0:     // onLoading resets these so we need to save them away for the Ajax call
michael@0:     var form = this.form;
michael@0:     var value = this.editField.value;
michael@0:     
michael@0:     // do this first, sometimes the ajax call returns before we get a chance to switch on Saving...
michael@0:     // which means this will actually switch on Saving... *after* we've left edit mode causing Saving...
michael@0:     // to be displayed indefinitely
michael@0:     this.onLoading();
michael@0:     
michael@0:     if (this.options.evalScripts) {
michael@0:       new Ajax.Request(
michael@0:         this.url, Object.extend({
michael@0:           parameters: this.options.callback(form, value),
michael@0:           onComplete: this.onComplete.bind(this),
michael@0:           onFailure: this.onFailure.bind(this),
michael@0:           asynchronous:true, 
michael@0:           evalScripts:true
michael@0:         }, this.options.ajaxOptions));
michael@0:     } else  {
michael@0:       new Ajax.Updater(
michael@0:         { success: this.element,
michael@0:           // don't update on failure (this could be an option)
michael@0:           failure: null }, 
michael@0:         this.url, Object.extend({
michael@0:           parameters: this.options.callback(form, value),
michael@0:           onComplete: this.onComplete.bind(this),
michael@0:           onFailure: this.onFailure.bind(this)
michael@0:         }, this.options.ajaxOptions));
michael@0:     }
michael@0:     // stop the event to avoid a page refresh in Safari
michael@0:     if (arguments.length > 1) {
michael@0:       Event.stop(arguments[0]);
michael@0:     }
michael@0:     return false;
michael@0:   },
michael@0:   onLoading: function() {
michael@0:     this.saving = true;
michael@0:     this.removeForm();
michael@0:     this.leaveHover();
michael@0:     this.showSaving();
michael@0:   },
michael@0:   showSaving: function() {
michael@0:     this.oldInnerHTML = this.element.innerHTML;
michael@0:     this.element.innerHTML = this.options.savingText;
michael@0:     Element.addClassName(this.element, this.options.savingClassName);
michael@0:     this.element.style.backgroundColor = this.originalBackground;
michael@0:     Element.show(this.element);
michael@0:   },
michael@0:   removeForm: function() {
michael@0:     if(this.form) {
michael@0:       if (this.form.parentNode) Element.remove(this.form);
michael@0:       this.form = null;
michael@0:     }
michael@0:   },
michael@0:   enterHover: function() {
michael@0:     if (this.saving) return;
michael@0:     this.element.style.backgroundColor = this.options.highlightcolor;
michael@0:     if (this.effect) {
michael@0:       this.effect.cancel();
michael@0:     }
michael@0:     Element.addClassName(this.element, this.options.hoverClassName)
michael@0:   },
michael@0:   leaveHover: function() {
michael@0:     if (this.options.backgroundColor) {
michael@0:       this.element.style.backgroundColor = this.oldBackground;
michael@0:     }
michael@0:     Element.removeClassName(this.element, this.options.hoverClassName)
michael@0:     if (this.saving) return;
michael@0:     this.effect = new Effect.Highlight(this.element, {
michael@0:       startcolor: this.options.highlightcolor,
michael@0:       endcolor: this.options.highlightendcolor,
michael@0:       restorecolor: this.originalBackground
michael@0:     });
michael@0:   },
michael@0:   leaveEditMode: function() {
michael@0:     Element.removeClassName(this.element, this.options.savingClassName);
michael@0:     this.removeForm();
michael@0:     this.leaveHover();
michael@0:     this.element.style.backgroundColor = this.originalBackground;
michael@0:     Element.show(this.element);
michael@0:     if (this.options.externalControl) {
michael@0:       Element.show(this.options.externalControl);
michael@0:     }
michael@0:     this.editing = false;
michael@0:     this.saving = false;
michael@0:     this.oldInnerHTML = null;
michael@0:     this.onLeaveEditMode();
michael@0:   },
michael@0:   onComplete: function(transport) {
michael@0:     this.leaveEditMode();
michael@0:     this.options.onComplete.bind(this)(transport, this.element);
michael@0:   },
michael@0:   onEnterEditMode: function() {},
michael@0:   onLeaveEditMode: function() {},
michael@0:   dispose: function() {
michael@0:     if (this.oldInnerHTML) {
michael@0:       this.element.innerHTML = this.oldInnerHTML;
michael@0:     }
michael@0:     this.leaveEditMode();
michael@0:     Event.stopObserving(this.element, 'click', this.onclickListener);
michael@0:     Event.stopObserving(this.element, 'mouseover', this.mouseoverListener);
michael@0:     Event.stopObserving(this.element, 'mouseout', this.mouseoutListener);
michael@0:     if (this.options.externalControl) {
michael@0:       Event.stopObserving(this.options.externalControl, 'click', this.onclickListener);
michael@0:       Event.stopObserving(this.options.externalControl, 'mouseover', this.mouseoverListener);
michael@0:       Event.stopObserving(this.options.externalControl, 'mouseout', this.mouseoutListener);
michael@0:     }
michael@0:   }
michael@0: };
michael@0: 
michael@0: Ajax.InPlaceCollectionEditor = Class.create();
michael@0: Object.extend(Ajax.InPlaceCollectionEditor.prototype, Ajax.InPlaceEditor.prototype);
michael@0: Object.extend(Ajax.InPlaceCollectionEditor.prototype, {
michael@0:   createEditField: function() {
michael@0:     if (!this.cached_selectTag) {
michael@0:       var selectTag = document.createElement("select");
michael@0:       var collection = this.options.collection || [];
michael@0:       var optionTag;
michael@0:       collection.each(function(e,i) {
michael@0:         optionTag = document.createElement("option");
michael@0:         optionTag.value = (e instanceof Array) ? e[0] : e;
michael@0:         if((typeof this.options.value == 'undefined') && 
michael@0:           ((e instanceof Array) ? this.element.innerHTML == e[1] : e == optionTag.value)) optionTag.selected = true;
michael@0:         if(this.options.value==optionTag.value) optionTag.selected = true;
michael@0:         optionTag.appendChild(document.createTextNode((e instanceof Array) ? e[1] : e));
michael@0:         selectTag.appendChild(optionTag);
michael@0:       }.bind(this));
michael@0:       this.cached_selectTag = selectTag;
michael@0:     }
michael@0: 
michael@0:     this.editField = this.cached_selectTag;
michael@0:     if(this.options.loadTextURL) this.loadExternalText();
michael@0:     this.form.appendChild(this.editField);
michael@0:     this.options.callback = function(form, value) {
michael@0:       return "value=" + encodeURIComponent(value);
michael@0:     }
michael@0:   }
michael@0: });
michael@0: 
michael@0: // Delayed observer, like Form.Element.Observer, 
michael@0: // but waits for delay after last key input
michael@0: // Ideal for live-search fields
michael@0: 
michael@0: Form.Element.DelayedObserver = Class.create();
michael@0: Form.Element.DelayedObserver.prototype = {
michael@0:   initialize: function(element, delay, callback) {
michael@0:     this.delay     = delay || 0.5;
michael@0:     this.element   = $(element);
michael@0:     this.callback  = callback;
michael@0:     this.timer     = null;
michael@0:     this.lastValue = $F(this.element); 
michael@0:     Event.observe(this.element,'keyup',this.delayedListener.bindAsEventListener(this));
michael@0:   },
michael@0:   delayedListener: function(event) {
michael@0:     if(this.lastValue == $F(this.element)) return;
michael@0:     if(this.timer) clearTimeout(this.timer);
michael@0:     this.timer = setTimeout(this.onTimerEvent.bind(this), this.delay * 1000);
michael@0:     this.lastValue = $F(this.element);
michael@0:   },
michael@0:   onTimerEvent: function() {
michael@0:     this.timer = null;
michael@0:     this.callback(this.element, $F(this.element));
michael@0:   }
michael@0: };