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- <pre class="prettyprint lang-js">/*!
- * Ext JS Library 3.3.1
- * Copyright(c) 2006-2010 Sencha Inc.
- * licensing@sencha.com
- * http://www.sencha.com/license
- */
-<div id="cls-Ext.grid.RowSelectionModel"></div>/**
- * @class Ext.grid.RowSelectionModel
- * @extends Ext.grid.AbstractSelectionModel
- * The default SelectionModel used by {@link Ext.grid.GridPanel}.
- * It supports multiple selections and keyboard selection/navigation. The objects stored
- * as selections and returned by {@link #getSelected}, and {@link #getSelections} are
- * the {@link Ext.data.Record Record}s which provide the data for the selected rows.
- * @constructor
- * @param {Object} config
- */
-Ext.grid.RowSelectionModel = Ext.extend(Ext.grid.AbstractSelectionModel, {
- <div id="cfg-Ext.grid.RowSelectionModel-singleSelect"></div>/**
- * @cfg {Boolean} singleSelect
- * <tt>true</tt> to allow selection of only one row at a time (defaults to <tt>false</tt>
- * allowing multiple selections)
- */
- singleSelect : false,
-
- constructor : function(config){
- Ext.apply(this, config);
- this.selections = new Ext.util.MixedCollection(false, function(o){
- return o.id;
- });
-
- this.last = false;
- this.lastActive = false;
-
- this.addEvents(
- <div id="event-Ext.grid.RowSelectionModel-selectionchange"></div>/**
- * @event selectionchange
- * Fires when the selection changes
- * @param {SelectionModel} this
- */
- 'selectionchange',
- <div id="event-Ext.grid.RowSelectionModel-beforerowselect"></div>/**
- * @event beforerowselect
- * Fires before a row is selected, return false to cancel the selection.
- * @param {SelectionModel} this
- * @param {Number} rowIndex The index to be selected
- * @param {Boolean} keepExisting False if other selections will be cleared
- * @param {Record} record The record to be selected
- */
- 'beforerowselect',
- <div id="event-Ext.grid.RowSelectionModel-rowselect"></div>/**
- * @event rowselect
- * Fires when a row is selected.
- * @param {SelectionModel} this
- * @param {Number} rowIndex The selected index
- * @param {Ext.data.Record} r The selected record
- */
- 'rowselect',
- <div id="event-Ext.grid.RowSelectionModel-rowdeselect"></div>/**
- * @event rowdeselect
- * Fires when a row is deselected. To prevent deselection
- * {@link Ext.grid.AbstractSelectionModel#lock lock the selections}.
- * @param {SelectionModel} this
- * @param {Number} rowIndex
- * @param {Record} record
- */
- 'rowdeselect'
- );
- Ext.grid.RowSelectionModel.superclass.constructor.call(this);
- },
-
- <div id="cfg-Ext.grid.RowSelectionModel-moveEditorOnEnter"></div>/**
- * @cfg {Boolean} moveEditorOnEnter
- * <tt>false</tt> to turn off moving the editor to the next row down when the enter key is pressed
- * or the next row up when shift + enter keys are pressed.
- */
- // private
- initEvents : function(){
-
- if(!this.grid.enableDragDrop && !this.grid.enableDrag){
- this.grid.on('rowmousedown', this.handleMouseDown, this);
- }
-
- this.rowNav = new Ext.KeyNav(this.grid.getGridEl(), {
- up: this.onKeyPress,
- down: this.onKeyPress,
- scope: this
- });
-
- this.grid.getView().on({
- scope: this,
- refresh: this.onRefresh,
- rowupdated: this.onRowUpdated,
- rowremoved: this.onRemove
- });
- },
-
- onKeyPress : function(e, name){
- var up = name == 'up',
- method = up ? 'selectPrevious' : 'selectNext',
- add = up ? -1 : 1,
- last;
- if(!e.shiftKey || this.singleSelect){
- this[method](false);
- }else if(this.last !== false && this.lastActive !== false){
- last = this.last;
- this.selectRange(this.last, this.lastActive + add);
- this.grid.getView().focusRow(this.lastActive);
- if(last !== false){
- this.last = last;
- }
- }else{
- this.selectFirstRow();
- }
- },
-
- // private
- onRefresh : function(){
- var ds = this.grid.store,
- s = this.getSelections(),
- i = 0,
- len = s.length,
- index, r;
-
- this.silent = true;
- this.clearSelections(true);
- for(; i < len; i++){
- r = s[i];
- if((index = ds.indexOfId(r.id)) != -1){
- this.selectRow(index, true);
- }
- }
- if(s.length != this.selections.getCount()){
- this.fireEvent('selectionchange', this);
- }
- this.silent = false;
- },
-
- // private
- onRemove : function(v, index, r){
- if(this.selections.remove(r) !== false){
- this.fireEvent('selectionchange', this);
- }
- },
-
- // private
- onRowUpdated : function(v, index, r){
- if(this.isSelected(r)){
- v.onRowSelect(index);
- }
- },
-
- <div id="method-Ext.grid.RowSelectionModel-selectRecords"></div>/**
- * Select records.
- * @param {Array} records The records to select
- * @param {Boolean} keepExisting (optional) <tt>true</tt> to keep existing selections
- */
- selectRecords : function(records, keepExisting){
- if(!keepExisting){
- this.clearSelections();
- }
- var ds = this.grid.store,
- i = 0,
- len = records.length;
- for(; i < len; i++){
- this.selectRow(ds.indexOf(records[i]), true);
- }
- },
-
- <div id="method-Ext.grid.RowSelectionModel-getCount"></div>/**
- * Gets the number of selected rows.
- * @return {Number}
- */
- getCount : function(){
- return this.selections.length;
- },
-
- <div id="method-Ext.grid.RowSelectionModel-selectFirstRow"></div>/**
- * Selects the first row in the grid.
- */
- selectFirstRow : function(){
- this.selectRow(0);
- },
-
- <div id="method-Ext.grid.RowSelectionModel-selectLastRow"></div>/**
- * Select the last row.
- * @param {Boolean} keepExisting (optional) <tt>true</tt> to keep existing selections
- */
- selectLastRow : function(keepExisting){
- this.selectRow(this.grid.store.getCount() - 1, keepExisting);
- },
-
- <div id="method-Ext.grid.RowSelectionModel-selectNext"></div>/**
- * Selects the row immediately following the last selected row.
- * @param {Boolean} keepExisting (optional) <tt>true</tt> to keep existing selections
- * @return {Boolean} <tt>true</tt> if there is a next row, else <tt>false</tt>
- */
- selectNext : function(keepExisting){
- if(this.hasNext()){
- this.selectRow(this.last+1, keepExisting);
- this.grid.getView().focusRow(this.last);
- return true;
- }
- return false;
- },
-
- <div id="method-Ext.grid.RowSelectionModel-selectPrevious"></div>/**
- * Selects the row that precedes the last selected row.
- * @param {Boolean} keepExisting (optional) <tt>true</tt> to keep existing selections
- * @return {Boolean} <tt>true</tt> if there is a previous row, else <tt>false</tt>
- */
- selectPrevious : function(keepExisting){
- if(this.hasPrevious()){
- this.selectRow(this.last-1, keepExisting);
- this.grid.getView().focusRow(this.last);
- return true;
- }
- return false;
- },
-
- <div id="method-Ext.grid.RowSelectionModel-hasNext"></div>/**
- * Returns true if there is a next record to select
- * @return {Boolean}
- */
- hasNext : function(){
- return this.last !== false && (this.last+1) < this.grid.store.getCount();
- },
-
- <div id="method-Ext.grid.RowSelectionModel-hasPrevious"></div>/**
- * Returns true if there is a previous record to select
- * @return {Boolean}
- */
- hasPrevious : function(){
- return !!this.last;
- },
-
-
- <div id="method-Ext.grid.RowSelectionModel-getSelections"></div>/**
- * Returns the selected records
- * @return {Array} Array of selected records
- */
- getSelections : function(){
- return [].concat(this.selections.items);
- },
-
- <div id="method-Ext.grid.RowSelectionModel-getSelected"></div>/**
- * Returns the first selected record.
- * @return {Record}
- */
- getSelected : function(){
- return this.selections.itemAt(0);
- },
-
- <div id="method-Ext.grid.RowSelectionModel-each"></div>/**
- * Calls the passed function with each selection. If the function returns
- * <tt>false</tt>, iteration is stopped and this function returns
- * <tt>false</tt>. Otherwise it returns <tt>true</tt>.
- * @param {Function} fn The function to call upon each iteration. It is passed the selected {@link Ext.data.Record Record}.
- * @param {Object} scope (optional) The scope (<code>this</code> reference) in which the function is executed. Defaults to this RowSelectionModel.
- * @return {Boolean} true if all selections were iterated
- */
- each : function(fn, scope){
- var s = this.getSelections(),
- i = 0,
- len = s.length;
-
- for(; i < len; i++){
- if(fn.call(scope || this, s[i], i) === false){
- return false;
- }
- }
- return true;
- },
-
- <div id="method-Ext.grid.RowSelectionModel-clearSelections"></div>/**
- * Clears all selections if the selection model
- * {@link Ext.grid.AbstractSelectionModel#isLocked is not locked}.
- * @param {Boolean} fast (optional) <tt>true</tt> to bypass the
- * conditional checks and events described in {@link #deselectRow}.
- */
- clearSelections : function(fast){
- if(this.isLocked()){
- return;
- }
- if(fast !== true){
- var ds = this.grid.store,
- s = this.selections;
- s.each(function(r){
- this.deselectRow(ds.indexOfId(r.id));
- }, this);
- s.clear();
- }else{
- this.selections.clear();
- }
- this.last = false;
- },
-
-
- <div id="method-Ext.grid.RowSelectionModel-selectAll"></div>/**
- * Selects all rows if the selection model
- * {@link Ext.grid.AbstractSelectionModel#isLocked is not locked}.
- */
- selectAll : function(){
- if(this.isLocked()){
- return;
- }
- this.selections.clear();
- for(var i = 0, len = this.grid.store.getCount(); i < len; i++){
- this.selectRow(i, true);
- }
- },
-
- <div id="method-Ext.grid.RowSelectionModel-hasSelection"></div>/**
- * Returns <tt>true</tt> if there is a selection.
- * @return {Boolean}
- */
- hasSelection : function(){
- return this.selections.length > 0;
- },
-
- <div id="method-Ext.grid.RowSelectionModel-isSelected"></div>/**
- * Returns <tt>true</tt> if the specified row is selected.
- * @param {Number/Record} index The record or index of the record to check
- * @return {Boolean}
- */
- isSelected : function(index){
- var r = Ext.isNumber(index) ? this.grid.store.getAt(index) : index;
- return (r && this.selections.key(r.id) ? true : false);
- },
-
- <div id="method-Ext.grid.RowSelectionModel-isIdSelected"></div>/**
- * Returns <tt>true</tt> if the specified record id is selected.
- * @param {String} id The id of record to check
- * @return {Boolean}
- */
- isIdSelected : function(id){
- return (this.selections.key(id) ? true : false);
- },
-
- // private
- handleMouseDown : function(g, rowIndex, e){
- if(e.button !== 0 || this.isLocked()){
- return;
- }
- var view = this.grid.getView();
- if(e.shiftKey && !this.singleSelect && this.last !== false){
- var last = this.last;
- this.selectRange(last, rowIndex, e.ctrlKey);
- this.last = last; // reset the last
- view.focusRow(rowIndex);
- }else{
- var isSelected = this.isSelected(rowIndex);
- if(e.ctrlKey && isSelected){
- this.deselectRow(rowIndex);
- }else if(!isSelected || this.getCount() > 1){
- this.selectRow(rowIndex, e.ctrlKey || e.shiftKey);
- view.focusRow(rowIndex);
- }
- }
- },
-
- <div id="method-Ext.grid.RowSelectionModel-selectRows"></div>/**
- * Selects multiple rows.
- * @param {Array} rows Array of the indexes of the row to select
- * @param {Boolean} keepExisting (optional) <tt>true</tt> to keep
- * existing selections (defaults to <tt>false</tt>)
- */
- selectRows : function(rows, keepExisting){
- if(!keepExisting){
- this.clearSelections();
- }
- for(var i = 0, len = rows.length; i < len; i++){
- this.selectRow(rows[i], true);
- }
- },
-
- <div id="method-Ext.grid.RowSelectionModel-selectRange"></div>/**
- * Selects a range of rows if the selection model
- * {@link Ext.grid.AbstractSelectionModel#isLocked is not locked}.
- * All rows in between startRow and endRow are also selected.
- * @param {Number} startRow The index of the first row in the range
- * @param {Number} endRow The index of the last row in the range
- * @param {Boolean} keepExisting (optional) True to retain existing selections
- */
- selectRange : function(startRow, endRow, keepExisting){
- var i;
- if(this.isLocked()){
- return;
- }
- if(!keepExisting){
- this.clearSelections();
- }
- if(startRow <= endRow){
- for(i = startRow; i <= endRow; i++){
- this.selectRow(i, true);
- }
- }else{
- for(i = startRow; i >= endRow; i--){
- this.selectRow(i, true);
- }
- }
- },
-
- <div id="method-Ext.grid.RowSelectionModel-deselectRange"></div>/**
- * Deselects a range of rows if the selection model
- * {@link Ext.grid.AbstractSelectionModel#isLocked is not locked}.
- * All rows in between startRow and endRow are also deselected.
- * @param {Number} startRow The index of the first row in the range
- * @param {Number} endRow The index of the last row in the range
- */
- deselectRange : function(startRow, endRow, preventViewNotify){
- if(this.isLocked()){
- return;
- }
- for(var i = startRow; i <= endRow; i++){
- this.deselectRow(i, preventViewNotify);
- }
- },
-
- <div id="method-Ext.grid.RowSelectionModel-selectRow"></div>/**
- * Selects a row. Before selecting a row, checks if the selection model
- * {@link Ext.grid.AbstractSelectionModel#isLocked is locked} and fires the
- * {@link #beforerowselect} event. If these checks are satisfied the row
- * will be selected and followed up by firing the {@link #rowselect} and
- * {@link #selectionchange} events.
- * @param {Number} row The index of the row to select
- * @param {Boolean} keepExisting (optional) <tt>true</tt> to keep existing selections
- * @param {Boolean} preventViewNotify (optional) Specify <tt>true</tt> to
- * prevent notifying the view (disables updating the selected appearance)
- */
- selectRow : function(index, keepExisting, preventViewNotify){
- if(this.isLocked() || (index < 0 || index >= this.grid.store.getCount()) || (keepExisting && this.isSelected(index))){
- return;
- }
- var r = this.grid.store.getAt(index);
- if(r && this.fireEvent('beforerowselect', this, index, keepExisting, r) !== false){
- if(!keepExisting || this.singleSelect){
- this.clearSelections();
- }
- this.selections.add(r);
- this.last = this.lastActive = index;
- if(!preventViewNotify){
- this.grid.getView().onRowSelect(index);
- }
- if(!this.silent){
- this.fireEvent('rowselect', this, index, r);
- this.fireEvent('selectionchange', this);
- }
- }
- },
-
- <div id="method-Ext.grid.RowSelectionModel-deselectRow"></div>/**
- * Deselects a row. Before deselecting a row, checks if the selection model
- * {@link Ext.grid.AbstractSelectionModel#isLocked is locked}.
- * If this check is satisfied the row will be deselected and followed up by
- * firing the {@link #rowdeselect} and {@link #selectionchange} events.
- * @param {Number} row The index of the row to deselect
- * @param {Boolean} preventViewNotify (optional) Specify <tt>true</tt> to
- * prevent notifying the view (disables updating the selected appearance)
- */
- deselectRow : function(index, preventViewNotify){
- if(this.isLocked()){
- return;
- }
- if(this.last == index){
- this.last = false;
- }
- if(this.lastActive == index){
- this.lastActive = false;
- }
- var r = this.grid.store.getAt(index);
- if(r){
- this.selections.remove(r);
- if(!preventViewNotify){
- this.grid.getView().onRowDeselect(index);
- }
- this.fireEvent('rowdeselect', this, index, r);
- this.fireEvent('selectionchange', this);
- }
- },
-
- // private
- acceptsNav : function(row, col, cm){
- return !cm.isHidden(col) && cm.isCellEditable(col, row);
- },
-
- // private
- onEditorKey : function(field, e){
- var k = e.getKey(),
- newCell,
- g = this.grid,
- last = g.lastEdit,
- ed = g.activeEditor,
- shift = e.shiftKey,
- ae, last, r, c;
-
- if(k == e.TAB){
- e.stopEvent();
- ed.completeEdit();
- if(shift){
- newCell = g.walkCells(ed.row, ed.col-1, -1, this.acceptsNav, this);
- }else{
- newCell = g.walkCells(ed.row, ed.col+1, 1, this.acceptsNav, this);
- }
- }else if(k == e.ENTER){
- if(this.moveEditorOnEnter !== false){
- if(shift){
- newCell = g.walkCells(last.row - 1, last.col, -1, this.acceptsNav, this);
- }else{
- newCell = g.walkCells(last.row + 1, last.col, 1, this.acceptsNav, this);
- }
- }
- }
- if(newCell){
- r = newCell[0];
- c = newCell[1];
-
- this.onEditorSelect(r, last.row);
-
- if(g.isEditor && g.editing){ // *** handle tabbing while editorgrid is in edit mode
- ae = g.activeEditor;
- if(ae && ae.field.triggerBlur){
- // *** if activeEditor is a TriggerField, explicitly call its triggerBlur() method
- ae.field.triggerBlur();
- }
- }
- g.startEditing(r, c);
- }
- },
-
- onEditorSelect: function(row, lastRow){
- if(lastRow != row){
- this.selectRow(row); // *** highlight newly-selected cell and update selection
- }
- },
-
- destroy : function(){
- Ext.destroy(this.rowNav);
- this.rowNav = null;
- Ext.grid.RowSelectionModel.superclass.destroy.call(this);
- }
-});
-</pre>
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