--- /dev/null
+<html>\r
+<head>\r
+ <title>The source code</title>\r
+ <link href="../resources/prettify/prettify.css" type="text/css" rel="stylesheet" />\r
+ <script type="text/javascript" src="../resources/prettify/prettify.js"></script>\r
+</head>\r
+<body onload="prettyPrint();">\r
+ <pre class="prettyprint lang-js">// A DropZone which cooperates with DragZones whose dragData contains\r
+// a "field" property representing a form Field. Fields may be dropped onto\r
+// grid data cells containing a matching data type.\r
+Ext.ux.CellFieldDropZone = Ext.extend(Ext.dd.DropZone, {\r
+ constructor: function(){},\r
+\r
+// Call the DropZone constructor using the View's scrolling element\r
+// only after the grid has been rendered.\r
+ init: function(grid) {\r
+ if (grid.rendered) {\r
+ this.grid = grid;\r
+ this.view = grid.getView();\r
+ this.store = grid.getStore();\r
+ Ext.ux.CellFieldDropZone.superclass.constructor.call(this, this.view.scroller);\r
+ } else {\r
+ grid.on('render', this.init, this);\r
+ }\r
+ },\r
+\r
+// Scroll the main configured Element when we drag close to the edge\r
+ containerScroll: true,\r
+\r
+ getTargetFromEvent: function(e) {\r
+// Ascertain whether the mousemove is within a grid cell\r
+ var t = e.getTarget(this.view.cellSelector);\r
+ if (t) {\r
+\r
+// We *are* within a grid cell, so ask the View exactly which one,\r
+// Extract data from the Model to create a target object for\r
+// processing in subsequent onNodeXXXX methods. Note that the target does\r
+// not have to be a DOM element. It can be whatever the noNodeXXX methods are\r
+// programmed to expect.\r
+ var rowIndex = this.view.findRowIndex(t);\r
+ var columnIndex = this.view.findCellIndex(t);\r
+ if ((rowIndex !== false) && (columnIndex !== false)) {\r
+ return {\r
+ node: t,\r
+ record: this.store.getAt(rowIndex),\r
+ fieldName: this.grid.getColumnModel().getDataIndex(columnIndex)\r
+ }\r
+ }\r
+ }\r
+ },\r
+\r
+// On Node enter, see if it is valid for us to drop the field on that type of column.\r
+ onNodeEnter: function(target, dd, e, dragData) {\r
+ delete this.dropOK;\r
+ if (!target) {\r
+ return;\r
+ }\r
+\r
+// Check that a field is being dragged.\r
+ var f = dragData.field;\r
+ if (!f) {\r
+ return;\r
+ }\r
+\r
+// Check whether the data type of the column being dropped on accepts the\r
+// dragged field type. If so, set dropOK flag, and highlight the target node.\r
+ var type = target.record.fields.get(target.fieldName).type;\r
+ switch (type) {\r
+ case 'float':\r
+ case 'int':\r
+ if (!f.isXType('numberfield')) {\r
+ return;\r
+ }\r
+ break;\r
+ case 'date':\r
+ if (!f.isXType('datefield')) {\r
+ return;\r
+ }\r
+ break;\r
+ case 'boolean':\r
+ if (!f.isXType('checkbox')) {\r
+ return;\r
+ }\r
+ }\r
+ this.dropOK = true;\r
+ Ext.fly(target.node).addClass('x-drop-target-active');\r
+ },\r
+\r
+// Return the class name to add to the drag proxy. This provides a visual indication\r
+// of drop allowed or not allowed.\r
+ onNodeOver: function(target, dd, e, dragData) {\r
+ return this.dropOK ? this.dropAllowed : this.dropNotAllowed;\r
+ },\r
+\r
+// nhighlight the target node.\r
+ onNodeOut: function(target, dd, e, dragData) {\r
+ Ext.fly(target.node).removeClass('x-drop-target-active');\r
+ },\r
+\r
+// Process the drop event if we have previously ascertained that a drop is OK.\r
+ onNodeDrop: function(target, dd, e, dragData) {\r
+ if (this.dropOK) {\r
+ target.record.set(target.fieldName, dragData.field.getValue());\r
+ return true;\r
+ }\r
+ }\r
+});\r
+\r
+// A class which makes Fields within a Panel draggable.\r
+// the dragData delivered to a coooperating DropZone's methods contains\r
+// the dragged Field in the property "field".\r
+Ext.ux.PanelFieldDragZone = Ext.extend(Ext.dd.DragZone, {\r
+ constructor: function(){},\r
+\r
+// Call the DRagZone's constructor. The Panel must have been rendered.\r
+ init: function(panel) {\r
+ if (panel.nodeType) {\r
+ Ext.ux.PanelFieldDragZone.superclass.init.apply(this, arguments);\r
+ } else {\r
+ if (panel.rendered) {\r
+ Ext.ux.PanelFieldDragZone.superclass.constructor.call(this, panel.getEl());\r
+ var i = Ext.fly(panel.getEl()).select('input');\r
+ i.unselectable();\r
+ } else {\r
+ panel.on('afterlayout', this.init, this, {single: true});\r
+ }\r
+ }\r
+ },\r
+\r
+ scroll: false,\r
+\r
+// On mousedown, we ascertain whether it is on one of our draggable Fields.\r
+// If so, we collect data about the draggable object, and return a drag data\r
+// object which contains our own data, plus a "ddel" property which is a DOM\r
+// node which provides a "view" of the dragged data.\r
+ getDragData: function(e) {\r
+ var t = e.getTarget('input');\r
+ if (t) {\r
+ e.stopEvent();\r
+\r
+// Ugly code to "detach" the drag gesture from the input field.\r
+// Without this, Opera never changes the mouseover target from the input field\r
+// even when dragging outside of the field - it just keeps selecting.\r
+ if (Ext.isOpera) {\r
+ Ext.fly(t).on('mousemove', function(e1){\r
+ t.style.visibility = 'hidden';\r
+ (function(){\r
+ t.style.visibility = '';\r
+ }).defer(1);\r
+ }, null, {single:true});\r
+ }\r
+\r
+// Get the data we are dragging: the Field\r
+// create a ddel for the drag proxy to display\r
+ var f = Ext.getCmp(t.id);\r
+ var d = document.createElement('div');\r
+ d.className = 'x-form-text';\r
+ d.appendChild(document.createTextNode(t.value));\r
+ Ext.fly(d).setWidth(f.getEl().getWidth());\r
+ return {\r
+ field: f,\r
+ ddel: d\r
+ };\r
+ }\r
+ },\r
+\r
+// The coordinates to slide the drag proxy back to on failed drop.\r
+ getRepairXY: function() {\r
+ return this.dragData.field.getEl().getXY();\r
+ }\r
+});\r
+\r
+Ext.onReady(function(){\r
+\r
+ var myData = [\r
+ ['3m Co',71.72,0.02,0.03,'9/1 12:00am'],\r
+ ['Alcoa Inc',29.01,0.42,1.47,'9/1 12:00am'],\r
+ ['Altria Group Inc',83.81,0.28,0.34,'9/1 12:00am'],\r
+ ['American Express Company',52.55,0.01,0.02,'9/1 12:00am'],\r
+ ['American International Group, Inc.',64.13,0.31,0.49,'9/1 12:00am'],\r
+ ['AT&T Inc.',31.61,-0.48,-1.54,'9/1 12:00am'],\r
+ ['Boeing Co.',75.43,0.53,0.71,'9/1 12:00am'],\r
+ ['Caterpillar Inc.',67.27,0.92,1.39,'9/1 12:00am'],\r
+ ['Citigroup, Inc.',49.37,0.02,0.04,'9/1 12:00am'],\r
+ ['E.I. du Pont de Nemours and Company',40.48,0.51,1.28,'9/1 12:00am'],\r
+ ['Exxon Mobil Corp',68.1,-0.43,-0.64,'9/1 12:00am'],\r
+ ['General Electric Company',34.14,-0.08,-0.23,'9/1 12:00am'],\r
+ ['General Motors Corporation',30.27,1.09,3.74,'9/1 12:00am'],\r
+ ['Hewlett-Packard Co.',36.53,-0.03,-0.08,'9/1 12:00am'],\r
+ ['Honeywell Intl Inc',38.77,0.05,0.13,'9/1 12:00am'],\r
+ ['Intel Corporation',19.88,0.31,1.58,'9/1 12:00am'],\r
+ ['International Business Machines',81.41,0.44,0.54,'9/1 12:00am'],\r
+ ['Johnson & Johnson',64.72,0.06,0.09,'9/1 12:00am'],\r
+ ['JP Morgan & Chase & Co',45.73,0.07,0.15,'9/1 12:00am'],\r
+ ['McDonald\'s Corporation',36.76,0.86,2.40,'9/1 12:00am'],\r
+ ['Merck & Co., Inc.',40.96,0.41,1.01,'9/1 12:00am'],\r
+ ['Microsoft Corporation',25.84,0.14,0.54,'9/1 12:00am'],\r
+ ['Pfizer Inc',27.96,0.4,1.45,'9/1 12:00am'],\r
+ ['The Coca-Cola Company',45.07,0.26,0.58,'9/1 12:00am'],\r
+ ['The Home Depot, Inc.',34.64,0.35,1.02,'9/1 12:00am'],\r
+ ['The Procter & Gamble Company',61.91,0.01,0.02,'9/1 12:00am'],\r
+ ['United Technologies Corporation',63.26,0.55,0.88,'9/1 12:00am'],\r
+ ['Verizon Communications',35.57,0.39,1.11,'9/1 12:00am'],\r
+ ['Wal-Mart Stores, Inc.',45.45,0.73,1.63,'9/1 12:00am']\r
+ ];\r
+\r
+ // example of custom renderer function\r
+ function change(val){\r
+ if(val > 0){\r
+ return '<span style="color:green;">' + val + '</span>';\r
+ }else if(val < 0){\r
+ return '<span style="color:red;">' + val + '</span>';\r
+ }\r
+ return val;\r
+ }\r
+\r
+ // example of custom renderer function\r
+ function pctChange(val){\r
+ if(val > 0){\r
+ return '<span style="color:green;">' + val + '%</span>';\r
+ }else if(val < 0){\r
+ return '<span style="color:red;">' + val + '%</span>';\r
+ }\r
+ return val;\r
+ }\r
+\r
+ // create the data store\r
+ var store = new Ext.data.ArrayStore({\r
+ fields: [\r
+ {name: 'company'},\r
+ {name: 'price', type: 'float'},\r
+ {name: 'change', type: 'float'},\r
+ {name: 'pctChange', type: 'float'},\r
+ {name: 'lastChange', type: 'date', dateFormat: 'n/j h:ia'}\r
+ ]\r
+ });\r
+ store.loadData(myData);\r
+ \r
+ var helpWindow = new Ext.Window({\r
+ title: 'Source code',\r
+ width: 920,\r
+ height: 500,\r
+ closeAction: 'hide',\r
+ bodyCfg: {tag: 'textarea', readonly: true},\r
+ bodyStyle: {\r
+ backgroundColor: 'white',\r
+ margin: '0px',\r
+ border: '0px none'\r
+ },\r
+ listeners: {\r
+ render: function(w) {\r
+ Ext.Ajax.request({\r
+ url: 'field-to-grid-dd.js',\r
+ success: function(r) {\r
+ w.body.dom.value = r.responseText;\r
+ }\r
+ });\r
+ }\r
+ }\r
+ });\r
+\r
+ // create the Grid\r
+ var grid = new Ext.grid.GridPanel({\r
+ store: store,\r
+ columns: [\r
+ {id:'company',header: "Company", width: 160, sortable: true, dataIndex: 'company'},\r
+ {header: "Price", width: 75, sortable: true, renderer: 'usMoney', dataIndex: 'price'},\r
+ {header: "Change", width: 75, sortable: true, renderer: change, dataIndex: 'change'},\r
+ {header: "% Change", width: 75, sortable: true, renderer: pctChange, dataIndex: 'pctChange'},\r
+ {header: "Last Updated", width: 85, sortable: true, renderer: Ext.util.Format.dateRenderer('m/d/Y'), dataIndex: 'lastChange'}\r
+ ],\r
+ plugins: new Ext.ux.CellFieldDropZone(),\r
+ stripeRows: true,\r
+ autoExpandColumn: 'company',\r
+ height:350,\r
+ width:600,\r
+ title:'Array Grid',\r
+ bbar: new Ext.PagingToolbar({\r
+ buttons: [{\r
+ text: 'View Source',\r
+ handler: function() {\r
+ helpWindow.show();\r
+ }\r
+ }],\r
+ store: store,\r
+ pageSize: 25\r
+ })\r
+ });\r
+\r
+ grid.render('grid-example');\r
+ grid.getSelectionModel().selectFirstRow();\r
+\r
+ var f = new Ext.Panel({\r
+ frame: true,\r
+ layout: 'form',\r
+ width: 600,\r
+ plugins: new Ext.ux.PanelFieldDragZone(),\r
+ style: {\r
+ 'margin-top': '10px'\r
+ },\r
+ labelWidth: 150,\r
+ items: [{\r
+ xtype: 'textfield',\r
+ fieldLabel: 'Drag this text',\r
+ value: 'test'\r
+ },{\r
+ xtype: 'numberfield',\r
+ fieldLabel: 'Drag this number',\r
+ value: '1.2'\r
+ },{\r
+ xtype: 'datefield',\r
+ fieldLabel: 'Drag this date',\r
+ value: new Date()\r
+ }],\r
+ renderTo: Ext.getBody()\r
+ });\r
+});</pre> \r
+</body>\r
+</html>
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