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  <pre class="prettyprint lang-js"><span id='Ext-grid-plugin-RowEditing'>/**
</span> * The Ext.grid.plugin.RowEditing plugin injects editing at a row level for a Grid. When editing begins,
 * a small floating dialog will be shown for the appropriate row. Each editable column will show a field
 * for editing. There is a button to save or cancel all changes for the edit.
 *
 * The field that will be used for the editor is defined at the
 * {@link Ext.grid.column.Column#editor editor}. The editor can be a field instance or a field configuration.
 * If an editor is not specified for a particular column then that column won't be editable and the value of
 * the column will be displayed. To provide a custom renderer for non-editable values, use the 
 * {@link Ext.grid.column.Column#editRenderer editRenderer} configuration on the column.
 *
 * The editor may be shared for each column in the grid, or a different one may be specified for each column.
 * An appropriate field type should be chosen to match the data structure that it will be editing. For example,
 * to edit a date, it would be useful to specify {@link Ext.form.field.Date} as the editor.
 *
 *     @example
 *     Ext.create('Ext.data.Store', {
 *         storeId:'simpsonsStore',
 *         fields:['name', 'email', 'phone'],
 *         data: [
 *             {&quot;name&quot;:&quot;Lisa&quot;, &quot;email&quot;:&quot;lisa@simpsons.com&quot;, &quot;phone&quot;:&quot;555-111-1224&quot;},
 *             {&quot;name&quot;:&quot;Bart&quot;, &quot;email&quot;:&quot;bart@simpsons.com&quot;, &quot;phone&quot;:&quot;555-222-1234&quot;},
 *             {&quot;name&quot;:&quot;Homer&quot;, &quot;email&quot;:&quot;home@simpsons.com&quot;, &quot;phone&quot;:&quot;555-222-1244&quot;},
 *             {&quot;name&quot;:&quot;Marge&quot;, &quot;email&quot;:&quot;marge@simpsons.com&quot;, &quot;phone&quot;:&quot;555-222-1254&quot;}
 *         ]
 *     });
 *
 *     Ext.create('Ext.grid.Panel', {
 *         title: 'Simpsons',
 *         store: Ext.data.StoreManager.lookup('simpsonsStore'),
 *         columns: [
 *             {header: 'Name',  dataIndex: 'name', editor: 'textfield'},
 *             {header: 'Email', dataIndex: 'email', flex:1,
 *                 editor: {
 *                     xtype: 'textfield',
 *                     allowBlank: false
 *                 }
 *             },
 *             {header: 'Phone', dataIndex: 'phone'}
 *         ],
 *         selType: 'rowmodel',
 *         plugins: [
 *             Ext.create('Ext.grid.plugin.RowEditing', {
 *                 clicksToEdit: 1
 *             })
 *         ],
 *         height: 200,
 *         width: 400,
 *         renderTo: Ext.getBody()
 *     });
 *
 */
Ext.define('Ext.grid.plugin.RowEditing', {
    extend: 'Ext.grid.plugin.Editing',
    alias: 'plugin.rowediting',

    requires: [
        'Ext.grid.RowEditor'
    ],

    editStyle: 'row',

<span id='Ext-grid-plugin-RowEditing-cfg-autoCancel'>    /**
</span>     * @cfg {Boolean} autoCancel
     * True to automatically cancel any pending changes when the row editor begins editing a new row.
     * False to force the user to explicitly cancel the pending changes. Defaults to true.
     */
    autoCancel: true,

<span id='Ext-grid-plugin-RowEditing-cfg-clicksToMoveEditor'>    /**
</span>     * @cfg {Number} clicksToMoveEditor
     * The number of clicks to move the row editor to a new row while it is visible and actively editing another row.
     * This will default to the same value as {@link Ext.grid.plugin.Editing#clicksToEdit clicksToEdit}.
     */

<span id='Ext-grid-plugin-RowEditing-cfg-errorSummary'>    /**
</span>     * @cfg {Boolean} errorSummary
     * True to show a {@link Ext.tip.ToolTip tooltip} that summarizes all validation errors present
     * in the row editor. Set to false to prevent the tooltip from showing. Defaults to true.
     */
    errorSummary: true,

    constructor: function() {
        var me = this;

        me.callParent(arguments);

        if (!me.clicksToMoveEditor) {
            me.clicksToMoveEditor = me.clicksToEdit;
        }

        me.autoCancel = !!me.autoCancel;
    },

    init: function(grid) {
        this.callParent([grid]);
    },

<span id='Ext-grid-plugin-RowEditing-method-destroy'>    /**
</span>     * @private
     * AbstractComponent calls destroy on all its plugins at destroy time.
     */
    destroy: function() {
        var me = this;
        Ext.destroy(me.editor);
        me.callParent(arguments);
    },

<span id='Ext-grid-plugin-RowEditing-method-startEdit'>    /**
</span>     * Starts editing the specified record, using the specified Column definition to define which field is being edited.
     * @param {Ext.data.Model} record The Store data record which backs the row to be edited.
     * @param {Ext.data.Model} columnHeader The Column object defining the column to be edited.
     * @return `true` if editing was started, `false` otherwise.
     */
    startEdit: function(record, columnHeader) {
        var me = this,
            editor = me.getEditor();

        if ((editor.beforeEdit() !== false) &amp;&amp; (me.callParent(arguments) !== false)) {
            editor.startEdit(me.context.record, me.context.column);
            return true;
        }
        return false;
    },

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

        if (me.editing) {
            me.getEditor().cancelEdit();
            me.callParent(arguments);
        }
    },

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

        if (me.editing &amp;&amp; me.validateEdit()) {
            me.editing = false;
            me.fireEvent('edit', me, me.context);
        }
    },

    // private
    validateEdit: function() {
        var me             = this,
            editor         = me.editor,
            context        = me.context,
            record         = context.record,
            newValues      = {},
            originalValues = {},
            editors        = editor.items.items,
            e,
            eLen           = editors.length,
            name, item;

        for (e = 0; e &lt; eLen; e++) {
            item = editors[e];
            name = item.name;

            newValues[name]      = item.getValue();
            originalValues[name] = record.get(name);
        }

        Ext.apply(context, {
            newValues      : newValues,
            originalValues : originalValues
        });

        return me.callParent(arguments) &amp;&amp; me.getEditor().completeEdit();
    },

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

        if (!me.editor) {
            me.editor = me.initEditor();
        }
        return me.editor;
    },

    // private
    initEditor: function() {
        var me       = this,
            grid     = me.grid,
            view     = me.view,
            headerCt = grid.headerCt,
            btns     = ['saveBtnText', 'cancelBtnText', 'errorsText', 'dirtyText'],
            b,
            bLen     = btns.length,
            cfg      = {
                autoCancel: me.autoCancel,
                errorSummary: me.errorSummary,
                fields: headerCt.getGridColumns(),
                hidden: true,
                view: view,
                // keep a reference..
                editingPlugin: me,
                renderTo: view.el
            },
            item;

        for (b = 0; b &lt; bLen; b++) {
            item = btns[b];

            if (Ext.isDefined(me[item])) {
                cfg[item] = me[item];
            }
        }

        return Ext.create('Ext.grid.RowEditor', cfg);
    },

    // private
    initEditTriggers: function() {
        var me = this,
            view = me.view,
            moveEditorEvent = me.clicksToMoveEditor === 1 ? 'click' : 'dblclick';

        me.callParent(arguments);

        if (me.clicksToMoveEditor !== me.clicksToEdit) {
            me.mon(view, 'cell' + moveEditorEvent, me.moveEditorByClick, me);
        }

        view.on({
            render: function() {
                me.mon(me.grid.headerCt, {
                    scope: me,
                    columnresize: me.onColumnResize,
                    columnhide: me.onColumnHide,
                    columnshow: me.onColumnShow,
                    columnmove: me.onColumnMove
                });
            },
            single: true
        });
    },

    startEditByClick: function() {
        var me = this;
        if (!me.editing || me.clicksToMoveEditor === me.clicksToEdit) {
            me.callParent(arguments);
        }
    },

    moveEditorByClick: function() {
        var me = this;
        if (me.editing) {
            me.superclass.onCellClick.apply(me, arguments);
        }
    },
    
    // private
    onColumnAdd: function(ct, column) {
        if (column.isHeader) {
            var me = this,
                editor;

            me.initFieldAccessors(column);

            // Only inform the editor about a new column if the editor has already been instantiated,
            // so do not use getEditor which instantiates the editor if not present.
            editor = me.editor;
            if (editor &amp;&amp; editor.onColumnAdd) {
                editor.onColumnAdd(column);
            }
        }
    },

    // private
    onColumnRemove: function(ct, column) {
        if (column.isHeader) {
            var me = this,
                editor = me.getEditor();

            if (editor &amp;&amp; editor.onColumnRemove) {
                editor.onColumnRemove(column);
            }
            me.removeFieldAccessors(column);
        }
    },

    // private
    onColumnResize: function(ct, column, width) {
        if (column.isHeader) {
            var me = this,
                editor = me.getEditor();

            if (editor &amp;&amp; editor.onColumnResize) {
                editor.onColumnResize(column, width);
            }
        }
    },

    // private
    onColumnHide: function(ct, column) {
        // no isHeader check here since its already a columnhide event.
        var me = this,
            editor = me.getEditor();

        if (editor &amp;&amp; editor.onColumnHide) {
            editor.onColumnHide(column);
        }
    },

    // private
    onColumnShow: function(ct, column) {
        // no isHeader check here since its already a columnshow event.
        var me = this,
            editor = me.getEditor();

        if (editor &amp;&amp; editor.onColumnShow) {
            editor.onColumnShow(column);
        }
    },

    // private
    onColumnMove: function(ct, column, fromIdx, toIdx) {
        // no isHeader check here since its already a columnmove event.
        var me = this,
            editor = me.getEditor();

        if (editor &amp;&amp; editor.onColumnMove) {
            // Must adjust the toIdx to account for removal if moving rightwards
            // because RowEditor.onColumnMove just calls Container.move which does not do this.
            editor.onColumnMove(column, fromIdx, toIdx - (toIdx &gt; fromIdx ? 1 : 0));
        }
    },

    // private
    setColumnField: function(column, field) {
        var me = this,
            editor = me.getEditor();
            
        editor.removeField(column);
        me.callParent(arguments);
        me.getEditor().setField(column);
    }
});
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