// script.aculo.us controls.js v1.8.1, Thu Jan 03 22:07:12 -0500 2008

// Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//           (c) 2005-2007 Ivan Krstic (http://blogs.law.harvard.edu/ivan)
//           (c) 2005-2007 Jon Tirsen (http://www.tirsen.com)
// Contributors:
//  Richard Livsey
//  Rahul Bhargava
//  Rob Wills
// 
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

// Autocompleter.Base handles all the autocompletion functionality 
// that's independent of the data source for autocompletion. This
// includes drawing the autocompletion menu, observing keyboard
// and mouse events, and similar.
//
// Specific autocompleters need to provide, at the very least, 
// a getUpdatedChoices function that will be invoked every time
// the text inside the monitored textbox changes. This method 
// should get the text for which to provide autocompletion by
// invoking this.getToken(), NOT by directly accessing
// this.element.value. This is to allow incremental tokenized
// autocompletion. Specific auto-completion logic (AJAX, etc)
// belongs in getUpdatedChoices.
//
// Tokenized incremental autocompletion is enabled automatically
// when an autocompleter is instantiated with the 'tokens' option
// in the options parameter, e.g.:
// new Ajax.Autocompleter('id','upd', '/url/', { tokens: ',' });
// will incrementally autocomplete with a comma as the token.
// Additionally, ',' in the above example can be replaced with
// a token array, e.g. { tokens: [',', '\n'] } which
// enables autocompletion on multiple tokens. This is most 
// useful when one of the tokens is \n (a newline), as it 
// allows smart autocompletion after linebreaks.

if (typeof Effect == 'undefined')
    throw ("controls.js requires including script.aculo.us' effects.js library");

var Autocompleter = {}
Autocompleter.Base = Class.create({
    baseInitialize: function(element, update, options) {
        element = $(element)
        this.element = element;
        this.update = $(update);
        this.hasFocus = false;
        this.changed = false;
        this.active = false;
        this.width = null; // Added by Martin A
        this.index = 0;
        this.entryCount = 0;
        this.oldElementValue = this.element.value;

        if (this.setOptions)
            this.setOptions(options);
        else
            this.options = options || {};

        this.options.paramName = this.options.paramName || this.element.name;
        this.options.tokens = this.options.tokens || [];
        this.options.frequency = this.options.frequency || 0.4;
        this.options.minChars = this.options.minChars || 1;
        this.options.onShow = this.options.onShow ||
      function(element, update) {
          if (!update.style.position || update.style.position == 'absolute') {
              update.style.position = 'absolute';
              Position.clone(element, update, {
                  setHeight: false,
                  offsetTop: element.offsetHeight
              });

              if (this.width != null) {
                  update.style.width = this.width;
              }
          }
          update.show();
          //Effect.Appear(update, { duration: 0.15 });
      };
        this.options.onHide = this.options.onHide ||
      function(element, update) {
          update.hide();
          //new Effect.Fade(update, { duration: 0.15 })
      };

        if (typeof (this.options.tokens) == 'string')
            this.options.tokens = new Array(this.options.tokens);
        // Force carriage returns as token delimiters anyway
        if (!this.options.tokens.include('\n'))
            this.options.tokens.push('\n');

        this.observer = null;

        this.element.setAttribute('autocomplete', 'off');

        Element.hide(this.update);

        Event.observe(this.element, 'blur', this.onBlur.bindAsEventListener(this));
        Event.observe(this.element, 'keydown', this.onKeyPress.bindAsEventListener(this));
    },

    show: function() {
        if (Element.getStyle(this.update, 'display') == 'none') this.options.onShow(this.element, this.update);
        if (!this.iefix &&
              (Prototype.Browser.IE) &&
              (Element.getStyle(this.update, 'position') == 'absolute')) {
            new Insertion.After(this.update,
               '<iframe id="' + this.update.id + '_iefix" ' +
               'style="display:none;position:absolute;filter:progid:DXImageTransform.Microsoft.Alpha(opacity=0);" ' +
               'src="" frameborder="0" scrolling="no"></iframe>');
            this.iefix = $(this.update.id + '_iefix');
        }
        if (this.iefix) setTimeout(this.fixIEOverlapping.bind(this), 500);
    },


    fixIEOverlapping: function() {
        Position.clone(this.update, this.iefix, { setTop: (!this.update.style.height) });
        this.iefix.style.zIndex = 500;
        this.update.style.zIndex = 501;
        Element.show(this.iefix);
    },

    hide: function() {
        this.stopIndicator();
        if (Element.getStyle(this.update, 'display') != 'none') this.options.onHide(this.element, this.update);
        if (this.iefix) Element.hide(this.iefix);
    },

    startIndicator: function() {
        if (this.options.indicator) Element.show(this.options.indicator);
    },

    stopIndicator: function() {
        if (this.options.indicator) Element.hide(this.options.indicator);
    },

    onKeyPress: function(event) {
        if (this.active)
            switch (event.keyCode) {
            case Event.KEY_TAB:
            case Event.KEY_RETURN:
                this.selectEntry();
                Event.stop(event);
            case Event.KEY_ESC:
                this.hide();
                this.active = false;
                Event.stop(event);
                return;
            case Event.KEY_LEFT:
            case Event.KEY_RIGHT:
                return;
            case Event.KEY_UP:
                this.markPrevious();
                this.render();
                Event.stop(event);
                return;
            case Event.KEY_DOWN:
                this.markNext();
                this.render();
                Event.stop(event);
                return;
        }
        else
            if (event.keyCode == Event.KEY_TAB || event.keyCode == Event.KEY_RETURN ||
         (Prototype.Browser.WebKit > 0 && event.keyCode == 0)) return;

        this.changed = true;
        this.hasFocus = true;

        if (this.observer) clearTimeout(this.observer);
        this.observer =
        setTimeout(this.onObserverEvent.bind(this), this.options.frequency * 1000);
    },

    activate: function() {
        this.changed = false;
        this.hasFocus = true;
        this.getUpdatedChoices();
    },

    onHover: function(event) {
        var element = Event.findElement(event, 'LI');
        if (this.index != element.autocompleteIndex) {
            this.index = element.autocompleteIndex;
            this.render();
        }
        Event.stop(event);
    },

    onClick: function(event) {
        var element = Event.findElement(event, 'LI');
        this.index = element.autocompleteIndex;
        this.selectEntry();
        this.hide();
    },

    onBlur: function(event) {
        // needed to make click events working
        //setTimeout(this.hide.bind(this), 250);
        setTimeout(this.hide.bind(this), 500);
        this.hasFocus = false;
        this.active = false;
    },

    render: function() {
        if (this.entryCount > 0) {
            for (var i = 0; i < this.entryCount; i++)
                this.index == i ?
          Element.addClassName(this.getEntry(i), "selected") :
          Element.removeClassName(this.getEntry(i), "selected");
            if (this.hasFocus) {
                this.show();
                this.active = true;
            }
        } else {
            this.active = false;
            this.hide();
        }
    },

    markPrevious: function() {
        if (this.index > 0) this.index--
        else this.index = this.entryCount - 1;
        this.getEntry(this.index).scrollIntoView(true);
    },

    markNext: function() {
        if (this.index < this.entryCount - 1) this.index++
        else this.index = 0;
        this.getEntry(this.index).scrollIntoView(false);
    },

    getEntry: function(index) {
        return this.update.firstChild.childNodes[index];
    },

    getCurrentEntry: function() {
        return this.getEntry(this.index);
    },

    selectEntry: function() {
        this.active = false;
        this.updateElement(this.getCurrentEntry());
    },

    updateElement: function(selectedElement) {
        if (this.options.updateElement) {
            this.options.updateElement(selectedElement);
            return;
        }
        var value = '';
        if (this.options.select) {
            var nodes = $(selectedElement).select('.' + this.options.select) || [];
            if (nodes.length > 0) value = Element.collectTextNodes(nodes[0], this.options.select);
        } else
            value = Element.collectTextNodesIgnoreClass(selectedElement, 'informal');

        /* VARFÖR I H*****E gjorde han så här... Blir ju konstiga designfel på sidan... */
        //var bounds = this.getTokenBounds();
        //if (bounds[0] != -1) {
        //var newValue = this.element.value.substr(0, bounds[0]);
        //var whitespace = this.element.value.substr(bounds[0]).match(/^\s+/);
        //if (whitespace) newValue += whitespace[0];
        //this.element.value = newValue + value + this.element.value.substr(bounds[1]);
        //} else {
        this.element.value = value;
        //}
        this.oldElementValue = this.element.value;
        this.element.focus();

        if (this.options.afterUpdateElement)
            this.options.afterUpdateElement(this.element, selectedElement);
    },

    updateChoices: function(choices) {
        if (!this.changed && this.hasFocus) {
            this.update.innerHTML = choices;
            Element.cleanWhitespace(this.update);
            Element.cleanWhitespace(this.update.down());

            if (this.update.firstChild && this.update.down().childNodes) {
                this.entryCount =
          this.update.down().childNodes.length;
                for (var i = 0; i < this.entryCount; i++) {
                    var entry = this.getEntry(i);
                    entry.autocompleteIndex = i;
                    this.addObservers(entry);
                }
            } else {
                this.entryCount = 0;
            }

            this.stopIndicator();
            this.index = 0;

            if (this.entryCount == 1 && this.options.autoSelect) {
                this.selectEntry();
                this.hide();
            } else {
                this.render();
            }
        }
    },

    addObservers: function(element) {
        Event.observe(element, "mouseover", this.onHover.bindAsEventListener(this));
        Event.observe(element, "click", this.onClick.bindAsEventListener(this));
    },

    onObserverEvent: function() {
        this.changed = false;
        this.tokenBounds = null;
        if (this.getToken().length >= this.options.minChars) {
            this.getUpdatedChoices();
        } else {
            this.active = false;
            this.hide();
        }
        this.oldElementValue = this.element.value;
    },

    getToken: function() {
        var bounds = this.getTokenBounds();
        return this.element.value.substring(bounds[0], bounds[1]).strip();
    },

    getTokenBounds: function() {
        if (null != this.tokenBounds) return this.tokenBounds;
        var value = this.element.value;
        if (value.strip().empty()) return [-1, 0];
        var diff = arguments.callee.getFirstDifferencePos(value, this.oldElementValue);
        var offset = (diff == this.oldElementValue.length ? 1 : 0);
        var prevTokenPos = -1, nextTokenPos = value.length;
        var tp;
        for (var index = 0, l = this.options.tokens.length; index < l; ++index) {
            tp = value.lastIndexOf(this.options.tokens[index], diff + offset - 1);
            if (tp > prevTokenPos) prevTokenPos = tp;
            tp = value.indexOf(this.options.tokens[index], diff + offset);
            if (-1 != tp && tp < nextTokenPos) nextTokenPos = tp;
        }
        return (this.tokenBounds = [prevTokenPos + 1, nextTokenPos]);
    }
});

Autocompleter.Base.prototype.getTokenBounds.getFirstDifferencePos = function(newS, oldS) {
    var boundary = Math.min(newS.length, oldS.length);
    for (var index = 0; index < boundary; ++index)
        if (newS[index] != oldS[index])
        return index;
    return boundary;
};

Ajax.Autocompleter = Class.create(Autocompleter.Base, {
    initialize: function(element, update, url, options) {
        this.baseInitialize(element, update, options);
        this.options.asynchronous = true;
        this.options.onComplete = this.onComplete.bind(this);
        this.options.defaultParams = this.options.parameters || null;
        this.url = url;
    },

    getUpdatedChoices: function() {
        this.startIndicator();

        var entry = encodeURIComponent(this.options.paramName) + '=' +
      encodeURIComponent(this.getToken());

        this.options.parameters = this.options.callback ?
      this.options.callback(this.element, entry) : entry;

        if (this.options.defaultParams)
            this.options.parameters += '&' + this.options.defaultParams;

        new Ajax.Request(this.url, this.options);
    },

    onComplete: function(request) {
        this.updateChoices(request.responseText);
    }
});

// The local array autocompleter. Used when you'd prefer to
// inject an array of autocompletion options into the page, rather
// than sending out Ajax queries, which can be quite slow sometimes.
//
// The constructor takes four parameters. The first two are, as usual,
// the id of the monitored textbox, and id of the autocompletion menu.
// The third is the array you want to autocomplete from, and the fourth
// is the options block.
//
// Extra local autocompletion options:
// - choices - How many autocompletion choices to offer
//
// - partialSearch - If false, the autocompleter will match entered
//                    text only at the beginning of strings in the 
//                    autocomplete array. Defaults to true, which will
//                    match text at the beginning of any *word* in the
//                    strings in the autocomplete array. If you want to
//                    search anywhere in the string, additionally set
//                    the option fullSearch to true (default: off).
//
// - fullSsearch - Search anywhere in autocomplete array strings.
//
// - partialChars - How many characters to enter before triggering
//                   a partial match (unlike minChars, which defines
//                   how many characters are required to do any match
//                   at all). Defaults to 2.
//
// - ignoreCase - Whether to ignore case when autocompleting.
//                 Defaults to true.
//
// It's possible to pass in a custom function as the 'selector' 
// option, if you prefer to write your own autocompletion logic.
// In that case, the other options above will not apply unless
// you support them.

Autocompleter.Local = Class.create(Autocompleter.Base, {
    initialize: function(element, update, array, options) {
        this.baseInitialize(element, update, options);
        this.options.array = array;
    },

    getUpdatedChoices: function() {
        this.updateChoices(this.options.selector(this));
    },

    setOptions: function(options) {
        this.options = Object.extend({
            choices: 10,
            partialSearch: true,
            partialChars: 2,
            ignoreCase: true,
            fullSearch: false,
            selector: function(instance) {
                var ret = []; // Beginning matches
                var partial = []; // Inside matches
                var entry = instance.getToken();
                var count = 0;

                for (var i = 0; i < instance.options.array.length &&
          ret.length < instance.options.choices; i++) {

                    var elem = instance.options.array[i];
                    var foundPos = instance.options.ignoreCase ?
            elem.toLowerCase().indexOf(entry.toLowerCase()) :
            elem.indexOf(entry);

                    while (foundPos != -1) {
                        if (foundPos == 0 && elem.length != entry.length) {
                            ret.push("<li><strong>" + elem.substr(0, entry.length) + "</strong>" +
                elem.substr(entry.length) + "</li>");
                            break;
                        } else if (entry.length >= instance.options.partialChars &&
              instance.options.partialSearch && foundPos != -1) {
                            if (instance.options.fullSearch || /\s/.test(elem.substr(foundPos - 1, 1))) {
                                partial.push("<li>" + elem.substr(0, foundPos) + "<strong>" +
                  elem.substr(foundPos, entry.length) + "</strong>" + elem.substr(
                  foundPos + entry.length) + "</li>");
                                break;
                            }
                        }

                        foundPos = instance.options.ignoreCase ?
              elem.toLowerCase().indexOf(entry.toLowerCase(), foundPos + 1) :
              elem.indexOf(entry, foundPos + 1);

                    }
                }
                if (partial.length)
                    ret = ret.concat(partial.slice(0, instance.options.choices - ret.length))
                return "<ul>" + ret.join('') + "</ul>";
            }
        }, options || {});
    }
});

// AJAX in-place editor and collection editor
// Full rewrite by Christophe Porteneuve <tdd@tddsworld.com> (April 2007).

// Use this if you notice weird scrolling problems on some browsers,
// the DOM might be a bit confused when this gets called so do this
// waits 1 ms (with setTimeout) until it does the activation
Field.scrollFreeActivate = function(field) {
    setTimeout(function() {
        Field.activate(field);
    }, 1);
}

Ajax.InPlaceEditor = Class.create({
    initialize: function(element, url, options) {
        this.url = url;
        this.element = element = $(element);
        this.prepareOptions();
        this._controls = {};
        arguments.callee.dealWithDeprecatedOptions(options); // DEPRECATION LAYER!!!
        Object.extend(this.options, options || {});
        if (!this.options.formId && this.element.id) {
            this.options.formId = this.element.id + '-inplaceeditor';
            if ($(this.options.formId))
                this.options.formId = '';
        }
        if (this.options.externalControl)
            this.options.externalControl = $(this.options.externalControl);
        if (!this.options.externalControl)
            this.options.externalControlOnly = false;
        this._originalBackground = this.element.getStyle('background-color') || 'transparent';
        this.element.title = this.options.clickToEditText;
        this._boundCancelHandler = this.handleFormCancellation.bind(this);
        this._boundComplete = (this.options.onComplete || Prototype.emptyFunction).bind(this);
        this._boundFailureHandler = this.handleAJAXFailure.bind(this);
        this._boundSubmitHandler = this.handleFormSubmission.bind(this);
        this._boundWrapperHandler = this.wrapUp.bind(this);
        this.registerListeners();
    },
    checkForEscapeOrReturn: function(e) {
        if (!this._editing || e.ctrlKey || e.altKey || e.shiftKey) return;
        if (Event.KEY_ESC == e.keyCode)
            this.handleFormCancellation(e);
        else if (Event.KEY_RETURN == e.keyCode)
            this.handleFormSubmission(e);
    },
    createControl: function(mode, handler, extraClasses) {
        var control = this.options[mode + 'Control'];
        var text = this.options[mode + 'Text'];
        if ('button' == control) {
            var btn = document.createElement('input');
            btn.type = 'submit';
            btn.value = text;
            btn.className = 'editor_' + mode + '_button';
            if ('cancel' == mode)
                btn.onclick = this._boundCancelHandler;
            this._form.appendChild(btn);
            this._controls[mode] = btn;
        } else if ('link' == control) {
            var link = document.createElement('a');
            link.href = '#';
            link.appendChild(document.createTextNode(text));
            link.onclick = 'cancel' == mode ? this._boundCancelHandler : this._boundSubmitHandler;
            link.className = 'editor_' + mode + '_link';
            if (extraClasses)
                link.className += ' ' + extraClasses;
            this._form.appendChild(link);
            this._controls[mode] = link;
        }
    },
    createEditField: function() {
        var text = (this.options.loadTextURL ? this.options.loadingText : this.getText());
        var fld;
        if (1 >= this.options.rows && !/\r|\n/.test(this.getText())) {
            fld = document.createElement('input');
            fld.type = 'text';
            var size = this.options.size || this.options.cols || 0;
            if (0 < size) fld.size = size;
        } else {
            fld = document.createElement('textarea');
            fld.rows = (1 >= this.options.rows ? this.options.autoRows : this.options.rows);
            fld.cols = this.options.cols || 40;
        }
        fld.name = this.options.paramName;
        fld.value = text; // No HTML breaks conversion anymore
        fld.className = 'editor_field';
        if (this.options.submitOnBlur)
            fld.onblur = this._boundSubmitHandler;
        this._controls.editor = fld;
        if (this.options.loadTextURL)
            this.loadExternalText();
        this._form.appendChild(this._controls.editor);
    },
    createForm: function() {
        var ipe = this;
        function addText(mode, condition) {
            var text = ipe.options['text' + mode + 'Controls'];
            if (!text || condition === false) return;
            ipe._form.appendChild(document.createTextNode(text));
        };
        this._form = $(document.createElement('form'));
        this._form.id = this.options.formId;
        this._form.addClassName(this.options.formClassName);
        this._form.onsubmit = this._boundSubmitHandler;
        this.createEditField();
        if ('textarea' == this._controls.editor.tagName.toLowerCase())
            this._form.appendChild(document.createElement('br'));
        if (this.options.onFormCustomization)
            this.options.onFormCustomization(this, this._form);
        addText('Before', this.options.okControl || this.options.cancelControl);
        this.createControl('ok', this._boundSubmitHandler);
        addText('Between', this.options.okControl && this.options.cancelControl);
        this.createControl('cancel', this._boundCancelHandler, 'editor_cancel');
        addText('After', this.options.okControl || this.options.cancelControl);
    },
    destroy: function() {
        if (this._oldInnerHTML)
            this.element.innerHTML = this._oldInnerHTML;
        this.leaveEditMode();
        this.unregisterListeners();
    },
    enterEditMode: function(e) {
        if (this._saving || this._editing) return;
        this._editing = true;
        this.triggerCallback('onEnterEditMode');
        if (this.options.externalControl)
            this.options.externalControl.hide();
        this.element.hide();
        this.createForm();
        this.element.parentNode.insertBefore(this._form, this.element);
        if (!this.options.loadTextURL)
            this.postProcessEditField();
        if (e) Event.stop(e);
    },
    enterHover: function(e) {
        if (this.options.hoverClassName)
            this.element.addClassName(this.options.hoverClassName);
        if (this._saving) return;
        this.triggerCallback('onEnterHover');
    },
    getText: function() {
        return this.element.innerHTML;
    },
    handleAJAXFailure: function(transport) {
        this.triggerCallback('onFailure', transport);
        if (this._oldInnerHTML) {
            this.element.innerHTML = this._oldInnerHTML;
            this._oldInnerHTML = null;
        }
    },
    handleFormCancellation: function(e) {
        this.wrapUp();
        if (e) Event.stop(e);
    },
    handleFormSubmission: function(e) {
        var form = this._form;
        var value = $F(this._controls.editor);
        this.prepareSubmission();
        var params = this.options.callback(form, value) || '';
        if (Object.isString(params))
            params = params.toQueryParams();
        params.editorId = this.element.id;
        if (this.options.htmlResponse) {
            var options = Object.extend({ evalScripts: true }, this.options.ajaxOptions);
            Object.extend(options, {
                parameters: params,
                onComplete: this._boundWrapperHandler,
                onFailure: this._boundFailureHandler
            });
            new Ajax.Updater({ success: this.element }, this.url, options);
        } else {
            var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
            Object.extend(options, {
                parameters: params,
                onComplete: this._boundWrapperHandler,
                onFailure: this._boundFailureHandler
            });
            new Ajax.Request(this.url, options);
        }
        if (e) Event.stop(e);
    },
    leaveEditMode: function() {
        this.element.removeClassName(this.options.savingClassName);
        this.removeForm();
        this.leaveHover();
        this.element.style.backgroundColor = this._originalBackground;
        this.element.show();
        if (this.options.externalControl)
            this.options.externalControl.show();
        this._saving = false;
        this._editing = false;
        this._oldInnerHTML = null;
        this.triggerCallback('onLeaveEditMode');
    },
    leaveHover: function(e) {
        if (this.options.hoverClassName)
            this.element.removeClassName(this.options.hoverClassName);
        if (this._saving) return;
        this.triggerCallback('onLeaveHover');
    },
    loadExternalText: function() {
        this._form.addClassName(this.options.loadingClassName);
        this._controls.editor.disabled = true;
        var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
        Object.extend(options, {
            parameters: 'editorId=' + encodeURIComponent(this.element.id),
            onComplete: Prototype.emptyFunction,
            onSuccess: function(transport) {
                this._form.removeClassName(this.options.loadingClassName);
                var text = transport.responseText;
                if (this.options.stripLoadedTextTags)
                    text = text.stripTags();
                this._controls.editor.value = text;
                this._controls.editor.disabled = false;
                this.postProcessEditField();
            } .bind(this),
            onFailure: this._boundFailureHandler
        });
        new Ajax.Request(this.options.loadTextURL, options);
    },
    postProcessEditField: function() {
        var fpc = this.options.fieldPostCreation;
        if (fpc)
            $(this._controls.editor)['focus' == fpc ? 'focus' : 'activate']();
    },
    prepareOptions: function() {
        this.options = Object.clone(Ajax.InPlaceEditor.DefaultOptions);
        Object.extend(this.options, Ajax.InPlaceEditor.DefaultCallbacks);
        [this._extraDefaultOptions].flatten().compact().each(function(defs) {
            Object.extend(this.options, defs);
        } .bind(this));
    },
    prepareSubmission: function() {
        this._saving = true;
        this.removeForm();
        this.leaveHover();
        this.showSaving();
    },
    registerListeners: function() {
        this._listeners = {};
        var listener;
        $H(Ajax.InPlaceEditor.Listeners).each(function(pair) {
            listener = this[pair.value].bind(this);
            this._listeners[pair.key] = listener;
            if (!this.options.externalControlOnly)
                this.element.observe(pair.key, listener);
            if (this.options.externalControl)
                this.options.externalControl.observe(pair.key, listener);
        } .bind(this));
    },
    removeForm: function() {
        if (!this._form) return;
        this._form.remove();
        this._form = null;
        this._controls = {};
    },
    showSaving: function() {
        this._oldInnerHTML = this.element.innerHTML;
        this.element.innerHTML = this.options.savingText;
        this.element.addClassName(this.options.savingClassName);
        this.element.style.backgroundColor = this._originalBackground;
        this.element.show();
    },
    triggerCallback: function(cbName, arg) {
        if ('function' == typeof this.options[cbName]) {
            this.options[cbName](this, arg);
        }
    },
    unregisterListeners: function() {
        $H(this._listeners).each(function(pair) {
            if (!this.options.externalControlOnly)
                this.element.stopObserving(pair.key, pair.value);
            if (this.options.externalControl)
                this.options.externalControl.stopObserving(pair.key, pair.value);
        } .bind(this));
    },
    wrapUp: function(transport) {
        this.leaveEditMode();
        // Can't use triggerCallback due to backward compatibility: requires
        // binding + direct element
        this._boundComplete(transport, this.element);
    }
});

Object.extend(Ajax.InPlaceEditor.prototype, {
    dispose: Ajax.InPlaceEditor.prototype.destroy
});

Ajax.InPlaceCollectionEditor = Class.create(Ajax.InPlaceEditor, {
    initialize: function($super, element, url, options) {
        this._extraDefaultOptions = Ajax.InPlaceCollectionEditor.DefaultOptions;
        $super(element, url, options);
    },

    createEditField: function() {
        var list = document.createElement('select');
        list.name = this.options.paramName;
        list.size = 1;
        this._controls.editor = list;
        this._collection = this.options.collection || [];
        if (this.options.loadCollectionURL)
            this.loadCollection();
        else
            this.checkForExternalText();
        this._form.appendChild(this._controls.editor);
    },

    loadCollection: function() {
        this._form.addClassName(this.options.loadingClassName);
        this.showLoadingText(this.options.loadingCollectionText);
        var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
        Object.extend(options, {
            parameters: 'editorId=' + encodeURIComponent(this.element.id),
            onComplete: Prototype.emptyFunction,
            onSuccess: function(transport) {
                var js = transport.responseText.strip();
                if (!/^\[.*\]$/.test(js)) // TODO: improve sanity check
                    throw 'Server returned an invalid collection representation.';
                this._collection = eval(js);
                this.checkForExternalText();
            } .bind(this),
            onFailure: this.onFailure
        });
        new Ajax.Request(this.options.loadCollectionURL, options);
    },

    showLoadingText: function(text) {
        this._controls.editor.disabled = true;
        var tempOption = this._controls.editor.firstChild;
        if (!tempOption) {
            tempOption = document.createElement('option');
            tempOption.value = '';
            this._controls.editor.appendChild(tempOption);
            tempOption.selected = true;
        }
        tempOption.update((text || '').stripScripts().stripTags());
    },

    checkForExternalText: function() {
        this._text = this.getText();
        if (this.options.loadTextURL)
            this.loadExternalText();
        else
            this.buildOptionList();
    },

    loadExternalText: function() {
        this.showLoadingText(this.options.loadingText);
        var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
        Object.extend(options, {
            parameters: 'editorId=' + encodeURIComponent(this.element.id),
            onComplete: Prototype.emptyFunction,
            onSuccess: function(transport) {
                this._text = transport.responseText.strip();
                this.buildOptionList();
            } .bind(this),
            onFailure: this.onFailure
        });
        new Ajax.Request(this.options.loadTextURL, options);
    },

    buildOptionList: function() {
        this._form.removeClassName(this.options.loadingClassName);
        this._collection = this._collection.map(function(entry) {
            return 2 === entry.length ? entry : [entry, entry].flatten();
        });
        var marker = ('value' in this.options) ? this.options.value : this._text;
        var textFound = this._collection.any(function(entry) {
            return entry[0] == marker;
        } .bind(this));
        this._controls.editor.update('');
        var option;
        this._collection.each(function(entry, index) {
            option = document.createElement('option');
            option.value = entry[0];
            option.selected = textFound ? entry[0] == marker : 0 == index;
            option.appendChild(document.createTextNode(entry[1]));
            this._controls.editor.appendChild(option);
        } .bind(this));
        this._controls.editor.disabled = false;
        Field.scrollFreeActivate(this._controls.editor);
    }
});

//**** DEPRECATION LAYER FOR InPlace[Collection]Editor! ****
//**** This only  exists for a while,  in order to  let ****
//**** users adapt to  the new API.  Read up on the new ****
//**** API and convert your code to it ASAP!            ****

Ajax.InPlaceEditor.prototype.initialize.dealWithDeprecatedOptions = function(options) {
    if (!options) return;
    function fallback(name, expr) {
        if (name in options || expr === undefined) return;
        options[name] = expr;
    };
    fallback('cancelControl', (options.cancelLink ? 'link' : (options.cancelButton ? 'button' :
    options.cancelLink == options.cancelButton == false ? false : undefined)));
    fallback('okControl', (options.okLink ? 'link' : (options.okButton ? 'button' :
    options.okLink == options.okButton == false ? false : undefined)));
    fallback('highlightColor', options.highlightcolor);
    fallback('highlightEndColor', options.highlightendcolor);
};

Object.extend(Ajax.InPlaceEditor, {
    DefaultOptions: {
        ajaxOptions: {},
        autoRows: 3,                                // Use when multi-line w/ rows == 1
        cancelControl: 'link',                      // 'link'|'button'|false
        cancelText: 'cancel',
        clickToEditText: 'Click to edit',
        externalControl: null,                      // id|elt
        externalControlOnly: false,
        fieldPostCreation: 'activate',              // 'activate'|'focus'|false
        formClassName: 'inplaceeditor-form',
        formId: null,                               // id|elt
        highlightColor: '#ffff99',
        highlightEndColor: '#ffffff',
        hoverClassName: '',
        htmlResponse: true,
        loadingClassName: 'inplaceeditor-loading',
        loadingText: 'Loading...',
        okControl: 'button',                        // 'link'|'button'|false
        okText: 'ok',
        paramName: 'value',
        rows: 1,                                    // If 1 and multi-line, uses autoRows
        savingClassName: 'inplaceeditor-saving',
        savingText: 'Saving...',
        size: 0,
        stripLoadedTextTags: false,
        submitOnBlur: false,
        textAfterControls: '',
        textBeforeControls: '',
        textBetweenControls: ''
    },
    DefaultCallbacks: {
        callback: function(form) {
            return Form.serialize(form);
        },
        onComplete: function(transport, element) {
            // For backward compatibility, this one is bound to the IPE, and passes
            // the element directly.  It was too often customized, so we don't break it.
            new Effect.Highlight(element, {
                startcolor: this.options.highlightColor, keepBackgroundImage: true
            });
        },
        onEnterEditMode: null,
        onEnterHover: function(ipe) {
            ipe.element.style.backgroundColor = ipe.options.highlightColor;
            if (ipe._effect)
                ipe._effect.cancel();
        },
        onFailure: function(transport, ipe) {
            alert('Error communication with the server: ' + transport.responseText.stripTags());
        },
        onFormCustomization: null, // Takes the IPE and its generated form, after editor, before controls.
        onLeaveEditMode: null,
        onLeaveHover: function(ipe) {
            ipe._effect = new Effect.Highlight(ipe.element, {
                startcolor: ipe.options.highlightColor, endcolor: ipe.options.highlightEndColor,
                restorecolor: ipe._originalBackground, keepBackgroundImage: true
            });
        }
    },
    Listeners: {
        click: 'enterEditMode',
        keydown: 'checkForEscapeOrReturn',
        mouseover: 'enterHover',
        mouseout: 'leaveHover'
    }
});

Ajax.InPlaceCollectionEditor.DefaultOptions = {
    loadingCollectionText: 'Loading options...'
};

// Delayed observer, like Form.Element.Observer, 
// but waits for delay after last key input
// Ideal for live-search fields

Form.Element.DelayedObserver = Class.create({
    initialize: function(element, delay, callback) {
        this.delay = delay || 0.5;
        this.element = $(element);
        this.callback = callback;
        this.timer = null;
        this.lastValue = $F(this.element);
        Event.observe(this.element, 'keyup', this.delayedListener.bindAsEventListener(this));
    },
    delayedListener: function(event) {
        if (this.lastValue == $F(this.element)) return;
        if (this.timer) clearTimeout(this.timer);
        this.timer = setTimeout(this.onTimerEvent.bind(this), this.delay * 1000);
        this.lastValue = $F(this.element);
    },
    onTimerEvent: function() {
        this.timer = null;
        this.callback(this.element, $F(this.element));
    }
});