examples/dd/field-to-grid-dd.js

   1 /*!
   2  * Ext JS Library 3.0.0
   3  * Copyright(c) 2006-2009 Ext JS, LLC
   4  * licensing@extjs.com
   5  * http://www.extjs.com/license
   6  */
   7 // A DropZone which cooperates with DragZones whose dragData contains\r
   8 // a "field" property representing a form Field. Fields may be dropped onto\r
   9 // grid data cells containing a matching data type.\r
  10 Ext.ux.CellFieldDropZone = Ext.extend(Ext.dd.DropZone, {\r
  11     constructor: function(){},\r
  12 \r
  13 //  Call the DropZone constructor using the View's scrolling element\r
  14 //  only after the grid has been rendered.\r
  15     init: function(grid) {\r
  16         if (grid.rendered) {\r
  17             this.grid = grid;\r
  18             this.view = grid.getView();\r
  19             this.store = grid.getStore();\r
  20             Ext.ux.CellFieldDropZone.superclass.constructor.call(this, this.view.scroller);\r
  21         } else {\r
  22             grid.on('render', this.init, this);\r
  23         }\r
  24     },\r
  25 \r
  26 //  Scroll the main configured Element when we drag close to the edge\r
  27     containerScroll: true,\r
  28 \r
  29     getTargetFromEvent: function(e) {\r
  30 //      Ascertain whether the mousemove is within a grid cell\r
  31         var t = e.getTarget(this.view.cellSelector);\r
  32         if (t) {\r
  33 \r
  34 //          We *are* within a grid cell, so ask the View exactly which one,\r
  35 //          Extract data from the Model to create a target object for\r
  36 //          processing in subsequent onNodeXXXX methods. Note that the target does\r
  37 //          not have to be a DOM element. It can be whatever the noNodeXXX methods are\r
  38 //          programmed to expect.\r
  39             var rowIndex = this.view.findRowIndex(t);\r
  40             var columnIndex = this.view.findCellIndex(t);\r
  41             if ((rowIndex !== false) && (columnIndex !== false)) {\r
  42                 return {\r
  43                     node: t,\r
  44                     record: this.store.getAt(rowIndex),\r
  45                     fieldName: this.grid.getColumnModel().getDataIndex(columnIndex)\r
  46                 }\r
  47             }\r
  48         }\r
  49     },\r
  50 \r
  51 //  On Node enter, see if it is valid for us to drop the field on that type of column.\r
  52     onNodeEnter: function(target, dd, e, dragData) {\r
  53         delete this.dropOK;\r
  54         if (!target) {\r
  55             return;\r
  56         }\r
  57 \r
  58 //      Check that a field is being dragged.\r
  59         var f = dragData.field;\r
  60         if (!f) {\r
  61             return;\r
  62         }\r
  63 \r
  64 //      Check whether the data type of the column being dropped on accepts the\r
  65 //      dragged field type. If so, set dropOK flag, and highlight the target node.\r
  66         var type = target.record.fields.get(target.fieldName).type;\r
  67         switch (type) {\r
  68             case 'float':\r
  69             case 'int':\r
  70                 if (!f.isXType('numberfield')) {\r
  71                     return;\r
  72                 }\r
  73                 break;\r
  74             case 'date':\r
  75                 if (!f.isXType('datefield')) {\r
  76                     return;\r
  77                 }\r
  78                 break;\r
  79             case 'boolean':\r
  80                 if (!f.isXType('checkbox')) {\r
  81                     return;\r
  82                 }\r
  83         }\r
  84         this.dropOK = true;\r
  85         Ext.fly(target.node).addClass('x-drop-target-active');\r
  86     },\r
  87 \r
  88 //  Return the class name to add to the drag proxy. This provides a visual indication\r
  89 //  of drop allowed or not allowed.\r
  90     onNodeOver: function(target, dd, e, dragData) {\r
  91         return this.dropOK ? this.dropAllowed : this.dropNotAllowed;\r
  92     },\r
  93 \r
  94 //   nhighlight the target node.\r
  95     onNodeOut: function(target, dd, e, dragData) {\r
  96         Ext.fly(target.node).removeClass('x-drop-target-active');\r
  97     },\r
  98 \r
  99 //  Process the drop event if we have previously ascertained that a drop is OK.\r
 100     onNodeDrop: function(target, dd, e, dragData) {\r
 101         if (this.dropOK) {\r
 102             target.record.set(target.fieldName, dragData.field.getValue());\r
 103             return true;\r
 104         }\r
 105     }\r
 106 });\r
 107 \r
 108 //  A class which makes Fields within a Panel draggable.\r
 109 //  the dragData delivered to a coooperating DropZone's methods contains\r
 110 //  the dragged Field in the property "field".\r
 111 Ext.ux.PanelFieldDragZone = Ext.extend(Ext.dd.DragZone, {\r
 112     constructor: function(){},\r
 113 \r
 114 //  Call the DRagZone's constructor. The Panel must have been rendered.\r
 115     init: function(panel) {\r
 116         if (panel.nodeType) {\r
 117             Ext.ux.PanelFieldDragZone.superclass.init.apply(this, arguments);\r
 118         } else {\r
 119             if (panel.rendered) {\r
 120                 Ext.ux.PanelFieldDragZone.superclass.constructor.call(this, panel.getEl());\r
 121                 var i = Ext.fly(panel.getEl()).select('input');\r
 122                 i.unselectable();\r
 123             } else {\r
 124                 panel.on('afterlayout', this.init, this, {single: true});\r
 125             }\r
 126         }\r
 127     },\r
 128 \r
 129     scroll: false,\r
 130 \r
 131 //  On mousedown, we ascertain whether it is on one of our draggable Fields.\r
 132 //  If so, we collect data about the draggable object, and return a drag data\r
 133 //  object which contains our own data, plus a "ddel" property which is a DOM\r
 134 //  node which provides a "view" of the dragged data.\r
 135     getDragData: function(e) {\r
 136         var t = e.getTarget('input');\r
 137         if (t) {\r
 138             e.stopEvent();\r
 139 \r
 140 //          Ugly code to "detach" the drag gesture from the input field.\r
 141 //          Without this, Opera never changes the mouseover target from the input field\r
 142 //          even when dragging outside of the field - it just keeps selecting.\r
 143             if (Ext.isOpera) {\r
 144                 Ext.fly(t).on('mousemove', function(e1){\r
 145                     t.style.visibility = 'hidden';\r
 146                     (function(){\r
 147                         t.style.visibility = '';\r
 148                     }).defer(1);\r
 149                 }, null, {single:true});\r
 150             }\r
 151 \r
 152 //          Get the data we are dragging: the Field\r
 153 //          create a ddel for the drag proxy to display\r
 154             var f = Ext.getCmp(t.id);\r
 155             var d = document.createElement('div');\r
 156             d.className = 'x-form-text';\r
 157             d.appendChild(document.createTextNode(t.value));\r
 158             Ext.fly(d).setWidth(f.getEl().getWidth());\r
 159             return {\r
 160                 field: f,\r
 161                 ddel: d\r
 162             };\r
 163         }\r
 164     },\r
 165 \r
 166 //  The coordinates to slide the drag proxy back to on failed drop.\r
 167     getRepairXY: function() {\r
 168         return this.dragData.field.getEl().getXY();\r
 169     }\r
 170 });\r
 171 \r
 172 Ext.onReady(function(){\r
 173 \r
 174     var myData = [\r
 175         ['3m Co',71.72,0.02,0.03,'9/1 12:00am'],\r
 176         ['Alcoa Inc',29.01,0.42,1.47,'9/1 12:00am'],\r
 177         ['Altria Group Inc',83.81,0.28,0.34,'9/1 12:00am'],\r
 178         ['American Express Company',52.55,0.01,0.02,'9/1 12:00am'],\r
 179         ['American International Group, Inc.',64.13,0.31,0.49,'9/1 12:00am'],\r
 180         ['AT&T Inc.',31.61,-0.48,-1.54,'9/1 12:00am'],\r
 181         ['Boeing Co.',75.43,0.53,0.71,'9/1 12:00am'],\r
 182         ['Caterpillar Inc.',67.27,0.92,1.39,'9/1 12:00am'],\r
 183         ['Citigroup, Inc.',49.37,0.02,0.04,'9/1 12:00am'],\r
 184         ['E.I. du Pont de Nemours and Company',40.48,0.51,1.28,'9/1 12:00am'],\r
 185         ['Exxon Mobil Corp',68.1,-0.43,-0.64,'9/1 12:00am'],\r
 186         ['General Electric Company',34.14,-0.08,-0.23,'9/1 12:00am'],\r
 187         ['General Motors Corporation',30.27,1.09,3.74,'9/1 12:00am'],\r
 188         ['Hewlett-Packard Co.',36.53,-0.03,-0.08,'9/1 12:00am'],\r
 189         ['Honeywell Intl Inc',38.77,0.05,0.13,'9/1 12:00am'],\r
 190         ['Intel Corporation',19.88,0.31,1.58,'9/1 12:00am'],\r
 191         ['International Business Machines',81.41,0.44,0.54,'9/1 12:00am'],\r
 192         ['Johnson & Johnson',64.72,0.06,0.09,'9/1 12:00am'],\r
 193         ['JP Morgan & Chase & Co',45.73,0.07,0.15,'9/1 12:00am'],\r
 194         ['McDonald\'s Corporation',36.76,0.86,2.40,'9/1 12:00am'],\r
 195         ['Merck & Co., Inc.',40.96,0.41,1.01,'9/1 12:00am'],\r
 196         ['Microsoft Corporation',25.84,0.14,0.54,'9/1 12:00am'],\r
 197         ['Pfizer Inc',27.96,0.4,1.45,'9/1 12:00am'],\r
 198         ['The Coca-Cola Company',45.07,0.26,0.58,'9/1 12:00am'],\r
 199         ['The Home Depot, Inc.',34.64,0.35,1.02,'9/1 12:00am'],\r
 200         ['The Procter & Gamble Company',61.91,0.01,0.02,'9/1 12:00am'],\r
 201         ['United Technologies Corporation',63.26,0.55,0.88,'9/1 12:00am'],\r
 202         ['Verizon Communications',35.57,0.39,1.11,'9/1 12:00am'],\r
 203         ['Wal-Mart Stores, Inc.',45.45,0.73,1.63,'9/1 12:00am']\r
 204     ];\r
 205 \r
 206     // example of custom renderer function\r
 207     function change(val){\r
 208         if(val > 0){\r
 209             return '<span style="color:green;">' + val + '</span>';\r
 210         }else if(val < 0){\r
 211             return '<span style="color:red;">' + val + '</span>';\r
 212         }\r
 213         return val;\r
 214     }\r
 215 \r
 216     // example of custom renderer function\r
 217     function pctChange(val){\r
 218         if(val > 0){\r
 219             return '<span style="color:green;">' + val + '%</span>';\r
 220         }else if(val < 0){\r
 221             return '<span style="color:red;">' + val + '%</span>';\r
 222         }\r
 223         return val;\r
 224     }\r
 225 \r
 226     // create the data store\r
 227     var store = new Ext.data.ArrayStore({\r
 228         fields: [\r
 229            {name: 'company'},\r
 230            {name: 'price', type: 'float'},\r
 231            {name: 'change', type: 'float'},\r
 232            {name: 'pctChange', type: 'float'},\r
 233            {name: 'lastChange', type: 'date', dateFormat: 'n/j h:ia'}\r
 234         ]\r
 235     });\r
 236     store.loadData(myData);\r
 237     \r
 238     var helpWindow = new Ext.Window({\r
 239         title: 'Source code',\r
 240         width: 920,\r
 241         height: 500,\r
 242         closeAction: 'hide',\r
 243         bodyCfg: {tag: 'textarea', readonly: true},\r
 244         bodyStyle: {\r
 245             backgroundColor: 'white',\r
 246             margin: '0px',\r
 247             border: '0px none'\r
 248         },\r
 249         listeners: {\r
 250             render: function(w) {\r
 251                 Ext.Ajax.request({\r
 252                     url: 'field-to-grid-dd.js',\r
 253                     success: function(r) {\r
 254                         w.body.dom.value = r.responseText;\r
 255                     }\r
 256                 });\r
 257             }\r
 258         }\r
 259     });\r
 260 \r
 261     // create the Grid\r
 262     var grid = new Ext.grid.GridPanel({\r
 263         store: store,\r
 264         columns: [\r
 265             {id:'company',header: "Company", width: 160, sortable: true, dataIndex: 'company'},\r
 266             {header: "Price", width: 75, sortable: true, renderer: 'usMoney', dataIndex: 'price'},\r
 267             {header: "Change", width: 75, sortable: true, renderer: change, dataIndex: 'change'},\r
 268             {header: "% Change", width: 75, sortable: true, renderer: pctChange, dataIndex: 'pctChange'},\r
 269             {header: "Last Updated", width: 85, sortable: true, renderer: Ext.util.Format.dateRenderer('m/d/Y'), dataIndex: 'lastChange'}\r
 270         ],\r
 271         plugins: new Ext.ux.CellFieldDropZone(),\r
 272         stripeRows: true,\r
 273         autoExpandColumn: 'company',\r
 274         height:350,\r
 275         width:600,\r
 276         title:'Array Grid',\r
 277         bbar: new Ext.PagingToolbar({\r
 278             buttons: [{\r
 279                 text: 'View Source',\r
 280                 handler: function() {\r
 281                     helpWindow.show();\r
 282                 }\r
 283             }],\r
 284             store: store,\r
 285             pageSize: 25\r
 286         })\r
 287     });\r
 288 \r
 289     grid.render('grid-example');\r
 290     grid.getSelectionModel().selectFirstRow();\r
 291 \r
 292     var f = new Ext.Panel({\r
 293         frame: true,\r
 294         layout: 'form',\r
 295         width: 600,\r
 296         plugins: new Ext.ux.PanelFieldDragZone(),\r
 297         style: {\r
 298             'margin-top': '10px'\r
 299         },\r
 300         labelWidth: 150,\r
 301         items: [{\r
 302             xtype: 'textfield',\r
 303             fieldLabel: 'Drag this text',\r
 304             value: 'test'\r
 305         },{\r
 306             xtype: 'numberfield',\r
 307             fieldLabel: 'Drag this number',\r
 308             value: '1.2'\r
 309         },{\r
 310             xtype: 'datefield',\r
 311             fieldLabel: 'Drag this date',\r
 312             value: new Date()\r
 313         }],\r
 314         renderTo: Ext.getBody()\r
 315     });\r
 316 });