1 | /*! |
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2 | * Ext JS Library 3.0.0 |
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3 | * Copyright(c) 2006-2009 Ext JS, LLC |
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4 | * licensing@extjs.com |
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5 | * http://www.extjs.com/license |
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6 | */ |
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7 | /** |
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8 | * @class Ext.grid.CheckboxSelectionModel |
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9 | * @extends Ext.grid.RowSelectionModel |
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10 | * A custom selection model that renders a column of checkboxes that can be toggled to select or deselect rows. |
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11 | * @constructor |
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12 | * @param {Object} config The configuration options |
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13 | */ |
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14 | Ext.grid.CheckboxSelectionModel = Ext.extend(Ext.grid.RowSelectionModel, { |
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15 | |
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16 | /** |
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17 | * @cfg {Boolean} checkOnly <tt>true</tt> if rows can only be selected by clicking on the |
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18 | * checkbox column (defaults to <tt>false</tt>). |
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19 | */ |
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20 | /** |
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21 | * @cfg {String} header Any valid text or HTML fragment to display in the header cell for the |
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22 | * checkbox column. Defaults to:<pre><code> |
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23 | * '<div class="x-grid3-hd-checker">&#160;</div>'</tt> |
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24 | * </code></pre> |
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25 | * The default CSS class of <tt>'x-grid3-hd-checker'</tt> displays a checkbox in the header |
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26 | * and provides support for automatic check all/none behavior on header click. This string |
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27 | * can be replaced by any valid HTML fragment, including a simple text string (e.g., |
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28 | * <tt>'Select Rows'</tt>), but the automatic check all/none behavior will only work if the |
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29 | * <tt>'x-grid3-hd-checker'</tt> class is supplied. |
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30 | */ |
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31 | header: '<div class="x-grid3-hd-checker"> </div>', |
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32 | /** |
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33 | * @cfg {Number} width The default width in pixels of the checkbox column (defaults to <tt>20</tt>). |
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34 | */ |
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35 | width: 20, |
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36 | /** |
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37 | * @cfg {Boolean} sortable <tt>true</tt> if the checkbox column is sortable (defaults to |
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38 | * <tt>false</tt>). |
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39 | */ |
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40 | sortable: false, |
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41 | |
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42 | // private |
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43 | menuDisabled:true, |
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44 | fixed:true, |
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45 | dataIndex: '', |
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46 | id: 'checker', |
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47 | |
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48 | constructor: function(){ |
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49 | Ext.grid.CheckboxSelectionModel.superclass.constructor.apply(this, arguments); |
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50 | |
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51 | if(this.checkOnly){ |
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52 | this.handleMouseDown = Ext.emptyFn; |
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53 | } |
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54 | }, |
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55 | |
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56 | // private |
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57 | initEvents : function(){ |
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58 | Ext.grid.CheckboxSelectionModel.superclass.initEvents.call(this); |
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59 | this.grid.on('render', function(){ |
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60 | var view = this.grid.getView(); |
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61 | view.mainBody.on('mousedown', this.onMouseDown, this); |
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62 | Ext.fly(view.innerHd).on('mousedown', this.onHdMouseDown, this); |
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63 | |
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64 | }, this); |
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65 | }, |
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66 | |
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67 | // private |
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68 | onMouseDown : function(e, t){ |
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69 | if(e.button === 0 && t.className == 'x-grid3-row-checker'){ // Only fire if left-click |
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70 | e.stopEvent(); |
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71 | var row = e.getTarget('.x-grid3-row'); |
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72 | if(row){ |
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73 | var index = row.rowIndex; |
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74 | if(this.isSelected(index)){ |
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75 | this.deselectRow(index); |
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76 | }else{ |
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77 | this.selectRow(index, true); |
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78 | } |
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79 | } |
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80 | } |
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81 | }, |
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82 | |
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83 | // private |
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84 | onHdMouseDown : function(e, t){ |
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85 | if(t.className == 'x-grid3-hd-checker'){ |
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86 | e.stopEvent(); |
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87 | var hd = Ext.fly(t.parentNode); |
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88 | var isChecked = hd.hasClass('x-grid3-hd-checker-on'); |
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89 | if(isChecked){ |
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90 | hd.removeClass('x-grid3-hd-checker-on'); |
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91 | this.clearSelections(); |
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92 | }else{ |
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93 | hd.addClass('x-grid3-hd-checker-on'); |
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94 | this.selectAll(); |
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95 | } |
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96 | } |
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97 | }, |
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98 | |
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99 | // private |
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100 | renderer : function(v, p, record){ |
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101 | return '<div class="x-grid3-row-checker"> </div>'; |
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102 | } |
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103 | }); |
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