    /**
     * The Editor class is used to provide inline editing for elements on the page. The editor
     * is backed by a {@link Ext.form.field.Field} that will be displayed to edit the underlying content.
     * The editor is a floating Component, when the editor is shown it is automatically aligned to
     * display over the top of the bound element it is editing. The Editor contains several options
     * for how to handle key presses:
     *
     * - {@link #completeOnEnter}
     * - {@link #cancelOnEsc}
     * - {@link #swallowKeys}
     *
     * It also has options for how to use the value once the editor has been activated:
     *
     * - {@link #revertInvalid}
     * - {@link #ignoreNoChange}
     * - {@link #updateEl}
     *
     * Sample usage:
     *
     *     var editor = new Ext.Editor({
     *         updateEl: true, // update the innerHTML of the bound element when editing completes
     *         field: {
     *             xtype: 'textfield'
     *         }
     *     });
     *     var el = Ext.get('my-text'); // The element to 'edit'
     *     editor.startEdit(el); // The value of the field will be taken as the innerHTML of the element.
     *
     * {@img Ext.Editor/Ext.Editor.png Ext.Editor component}
     *
     */
    Ext.define('Ext.Editor', {

        /* Begin Definitions */

        extend: 'Ext.container.Container',

        alias: 'widget.editor',

        requires: ['Ext.layout.container.Editor'],

        /* End Definitions */

       layout: 'editor',

        /**
        * @cfg {Ext.form.field.Field} field
        * The Field object (or descendant) or config object for field
        */

        /**
         * @cfg {Boolean} allowBlur
         * True to {@link #completeEdit complete the editing process} if in edit mode when the
         * field is blurred.
         */
        allowBlur: true,

        /**
         * @cfg {Boolean/Object} autoSize
         * True for the editor to automatically adopt the size of the underlying field. Otherwise, an object
         * can be passed to indicate where to get each dimension. The available properties are 'boundEl' and
         * 'field'. If a dimension is not specified, it will use the underlying height/width specified on
         * the editor object.
         * Examples:
         *
         *     autoSize: true // The editor will be sized to the height/width of the field
         *
         *     height: 21,
         *     autoSize: {
         *         width: 'boundEl' // The width will be determined by the width of the boundEl, the height from the editor (21)
         *     }
         *
         *     autoSize: {
         *         width: 'field', // Width from the field
         *         height: 'boundEl' // Height from the boundEl
         *     }
         */

        /**
         * @cfg {Boolean} revertInvalid
         * True to automatically revert the field value and cancel the edit when the user completes an edit and the field
         * validation fails
         */
        revertInvalid: true,

        /**
         * @cfg {Boolean} [ignoreNoChange=false]
         * True to skip the edit completion process (no save, no events fired) if the user completes an edit and
         * the value has not changed.  Applies only to string values - edits for other data types
         * will never be ignored.
         */

        /**
         * @cfg {Boolean} [hideEl=true]
         * False to keep the bound element visible while the editor is displayed
         */

        /**
         * @cfg {Object} value
         * The data value of the underlying field
         */
        value : '',

        /**
         * @cfg {String} alignment
         * The position to align to (see {@link Ext.util.Positionable#alignTo} for more details).
         */
        alignment: 'c-c?',

        /**
         * @cfg {Number[]} offsets
         * The offsets to use when aligning (see {@link Ext.util.Positionable#alignTo} for more details.
         */
        offsets: [0, 0],

        /**
         * @cfg {Boolean/String} shadow
         * "sides" for sides/bottom only, "frame" for 4-way shadow, and "drop" for bottom-right shadow.
         */
        shadow : 'frame',

        /**
         * @cfg {Boolean} constrain
         * True to constrain the editor to the viewport
         */
        constrain : false,

        /**
         * @cfg {Boolean} swallowKeys
         * Handle the keydown/keypress events so they don't propagate
         */
        swallowKeys : true,

        /**
         * @cfg {Boolean} completeOnEnter
         * True to complete the edit when the enter key is pressed.
         */
        completeOnEnter : true,

        /**
         * @cfg {Boolean} cancelOnEsc
         * True to cancel the edit when the escape key is pressed.
         */
        cancelOnEsc : true,

        /**
         * @cfg {Boolean} updateEl
         * True to update the innerHTML of the bound element when the update completes
         */
        updateEl : false,

        /**
         * @cfg {String/HTMLElement/Ext.Element} [parentEl=document.body]
         * An element to render to.
         */

        // private overrides
        hidden: true,
        baseCls: Ext.baseCSSPrefix + 'editor',

        initComponent : function() {
            var me = this,
                field = me.field = Ext.ComponentManager.create(me.field, 'textfield');

            Ext.apply(field, {
                inEditor: true,
                msgTarget: field.msgTarget == 'title' ? 'title' :  'qtip'
            });
            me.mon(field, {
                scope: me,
                blur: {
                    fn: me.onFieldBlur,
                    // slight delay to avoid race condition with startEdits (e.g. grid view refresh)
                    delay: 1
                },
                specialkey: me.onSpecialKey
            });

            if (field.grow) {
                me.mon(field, 'autosize', me.onFieldAutosize,  me, {delay: 1});
            }
            me.floating = {
                constrain: me.constrain
            };
            me.items = field;

            me.callParent(arguments);

            me.addEvents(
                /**
                 * @event beforestartedit
                 * Fires when editing is initiated, but before the value changes.  Editing can be canceled by returning
                 * false from the handler of this event.
                 * @param {Ext.Editor} this
                 * @param {Ext.Element} boundEl The underlying element bound to this editor
                 * @param {Object} value The field value being set
                 */
                'beforestartedit',

                /**
                 * @event startedit
                 * Fires when this editor is displayed
                 * @param {Ext.Editor} this
                 * @param {Ext.Element} boundEl The underlying element bound to this editor
                 * @param {Object} value The starting field value
                 */
                'startedit',

                /**
                 * @event beforecomplete
                 * Fires after a change has been made to the field, but before the change is reflected in the underlying
                 * field.  Saving the change to the field can be canceled by returning false from the handler of this event.
                 * Note that if the value has not changed and ignoreNoChange = true, the editing will still end but this
                 * event will not fire since no edit actually occurred.
                 * @param {Ext.Editor} this
                 * @param {Object} value The current field value
                 * @param {Object} startValue The original field value
                 */
                'beforecomplete',
                /**
                 * @event complete
                 * Fires after editing is complete and any changed value has been written to the underlying field.
                 * @param {Ext.Editor} this
                 * @param {Object} value The current field value
                 * @param {Object} startValue The original field value
                 */
                'complete',
                /**
                 * @event canceledit
                 * Fires after editing has been canceled and the editor's value has been reset.
                 * @param {Ext.Editor} this
                 * @param {Object} value The user-entered field value that was discarded
                 * @param {Object} startValue The original field value that was set back into the editor after cancel
                 */
                'canceledit',
                /**
                 * @event specialkey
                 * Fires when any key related to navigation (arrows, tab, enter, esc, etc.) is pressed.  You can check
                 * {@link Ext.EventObject#getKey} to determine which key was pressed.
                 * @param {Ext.Editor} this
                 * @param {Ext.form.field.Field} field The field attached to this editor
                 * @param {Ext.EventObject} event The event object
                 */
                'specialkey'
            );
        },

        // private
        onFieldAutosize: function(){
            this.updateLayout();
        },

        // private
        afterRender : function(ct, position) {
            var me = this,
                field = me.field,
                inputEl = field.inputEl;

            me.callParent(arguments);

            // Ensure the field doesn't get submitted as part of any form
            if (inputEl) {
                inputEl.dom.name = '';
                if (me.swallowKeys) {
                    inputEl.swallowEvent([
                        'keypress', // *** Opera
                        'keydown'   // *** all other browsers
                    ]);
                }
            }
        },

        // private
        onSpecialKey : function(field, event) {
            var me = this,
                key = event.getKey(),
                complete = me.completeOnEnter && key == event.ENTER,
                cancel = me.cancelOnEsc && key == event.ESC;

            if (complete || cancel) {
                event.stopEvent();
                // Must defer this slightly to prevent exiting edit mode before the field's own
                // key nav can handle the enter key, e.g. selecting an item in a combobox list
                Ext.defer(function() {
                    if (complete) {
                        me.completeEdit();
                    } else {
                        me.cancelEdit();
                    }
                    if (field.triggerBlur) {
                        field.triggerBlur(event);
                    }
                }, 10);
            }

            me.fireEvent('specialkey', me, field, event);
        },

        /**
         * Starts the editing process and shows the editor.
         * @param {String/HTMLElement/Ext.Element} el The element to edit
         * @param {String} value (optional) A value to initialize the editor with. If a value is not provided, it defaults
          * to the innerHTML of el.
         */
        startEdit : function(el, value) {
            var me = this,
                field = me.field;

            me.completeEdit();
            me.boundEl = Ext.get(el);
            value = Ext.isDefined(value) ? value : Ext.String.trim(me.boundEl.dom.innerText || me.boundEl.dom.innerHTML);

            if (!me.rendered) {
                // Render to the ownerCt's element
                // Being floating, we do not need to use the actual layout's target.
                // Indeed, it's better if we do not so that we do not interfere with layout's child management,
                // especially with CellEditors in the element of a TablePanel.
                if (me.ownerCt) {
                    me.parentEl = me.ownerCt.el;
                    me.parentEl.position();
                }
                me.render(me.parentEl || document.body);
            }

            if (me.fireEvent('beforestartedit', me, me.boundEl, value) !== false) {
                me.startValue = value;
                me.show();
                // temporarily suspend events on field to prevent the "change" event from firing when reset() and setValue() are called
                field.suspendEvents();
                field.reset();
                field.setValue(value);
                field.resumeEvents();
                me.realign(true);
                field.focus(false, 10);
                if (field.autoSize) {
                    field.autoSize();
                }
                me.editing = true;
            }
        },

        /**
         * Realigns the editor to the bound field based on the current alignment config value.
         * @param {Boolean} autoSize (optional) True to size the field to the dimensions of the bound element.
         */
        realign : function(autoSize) {
            var me = this;
            if (autoSize === true) {
                me.updateLayout();
            }
            me.alignTo(me.boundEl, me.alignment, me.offsets);
        },

        /**
         * Ends the editing process, persists the changed value to the underlying field, and hides the editor.
         * @param {Boolean} [remainVisible=false] Override the default behavior and keep the editor visible after edit
         */
        completeEdit : function(remainVisible) {
            var me = this,
                field = me.field,
                value;

            if (!me.editing) {
                return;
            }

            // Assert combo values first
            if (field.assertValue) {
                field.assertValue();
            }

            value = me.getValue();
            if (!field.isValid()) {
                if (me.revertInvalid !== false) {
                    me.cancelEdit(remainVisible);
                }
                return;
            }

            if (String(value) === String(me.startValue) && me.ignoreNoChange) {
                me.hideEdit(remainVisible);
                return;
            }

            if (me.fireEvent('beforecomplete', me, value, me.startValue) !== false) {
                // Grab the value again, may have changed in beforecomplete
                value = me.getValue();
                if (me.updateEl && me.boundEl) {
                    me.boundEl.update(value);
                }
                me.hideEdit(remainVisible);
                me.fireEvent('complete', me, value, me.startValue);
            }
        },

        // private
        onShow : function() {
            var me = this;

            me.callParent(arguments);
            if (me.hideEl !== false) {
                me.boundEl.hide();
            }
            me.fireEvent('startedit', me, me.boundEl, me.startValue);
        },

        /**
         * Cancels the editing process and hides the editor without persisting any changes.  The field value will be
         * reverted to the original starting value.
         * @param {Boolean} [remainVisible=false] Override the default behavior and keep the editor visible after cancel
         */
        cancelEdit : function(remainVisible) {
            var me = this,
                startValue = me.startValue,
                field = me.field,
                value;

            if (me.editing) {
                value = me.getValue();
                // temporarily suspend events on field to prevent the "change" event from firing when setValue() is called
                field.suspendEvents();
                me.setValue(startValue);
                field.resumeEvents();
                me.hideEdit(remainVisible);
                me.fireEvent('canceledit', me, value, startValue);
            }
        },

        // private
        hideEdit: function(remainVisible) {
            if (remainVisible !== true) {
                this.editing = false;
                this.hide();
            }
        },

        // private
        onFieldBlur : function(field, e) {
            var me = this,
                target;

            // selectSameEditor flag allows the same editor to be started without onFieldBlur firing on itself
            if(me.allowBlur === true && me.editing && me.selectSameEditor !== true) {
                me.completeEdit();
            }

            // If the target of the event was focusable, prevent reacquisition of focus by editor owner
            if (e && Ext.fly(target = e.getTarget()).focusable()) {
                target.focus();
            }
        },

        // private
        onHide : function() {
            var me = this,
                field = me.field;

            if (me.editing) {
                me.completeEdit();
                return;
            }
            if (field.hasFocus) {
                field.blur();
            }
            if (field.collapse) {
                field.collapse();
            }

            //field.hide();
            if (me.hideEl !== false) {
                me.boundEl.show();
            }
            me.callParent(arguments);
        },

        /**
         * Sets the data value of the editor
         * @param {Object} value Any valid value supported by the underlying field
         */
        setValue : function(value) {
            this.field.setValue(value);
        },

        /**
         * Gets the data value of the editor
         * @return {Object} The data value
         */
        getValue : function() {
            return this.field.getValue();
        },

        beforeDestroy : function() {
            var me = this;

            Ext.destroy(me.field);
            delete me.field;
            delete me.parentEl;
            delete me.boundEl;

            me.callParent(arguments);
        }
    });