Mega Code Archive
Field to grid drag and drop
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* Ext JS Library 3.0.0
* Copyright(c) 2006-2009 Ext JS, LLC
* licensing@extjs.com
* http://www.extjs.com/license
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<head>
<title>Hello World Window</title>
<link rel="stylesheet" type="text/css" href="ext-3.0.0/resources/css/ext-all.css" />
<script type="text/javascript" src="ext-3.0.0/adapter/ext/ext-base.js"></script>
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<!-- Revised from demo code from ext3.0.0 -->
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/*!
* Ext JS Library 3.0.0
* Copyright(c) 2006-2009 Ext JS, LLC
* licensing@extjs.com
* http://www.extjs.com/license
*/
// A DropZone which cooperates with DragZones whose dragData contains
// a "field" property representing a form Field. Fields may be dropped onto
// grid data cells containing a matching data type.
Ext.ux.CellFieldDropZone = Ext.extend(Ext.dd.DropZone, {
constructor: function(){},
// Call the DropZone constructor using the View's scrolling element
// only after the grid has been rendered.
init: function(grid) {
if (grid.rendered) {
this.grid = grid;
this.view = grid.getView();
this.store = grid.getStore();
Ext.ux.CellFieldDropZone.superclass.constructor.call(this, this.view.scroller);
} else {
grid.on('render', this.init, this);
}
},
// Scroll the main configured Element when we drag close to the edge
containerScroll: true,
getTargetFromEvent: function(e) {
// Ascertain whether the mousemove is within a grid cell
var t = e.getTarget(this.view.cellSelector);
if (t) {
// We *are* within a grid cell, so ask the View exactly which one,
// Extract data from the Model to create a target object for
// processing in subsequent onNodeXXXX methods. Note that the target does
// not have to be a DOM element. It can be whatever the noNodeXXX methods are
// programmed to expect.
var rowIndex = this.view.findRowIndex(t);
var columnIndex = this.view.findCellIndex(t);
if ((rowIndex !== false) && (columnIndex !== false)) {
return {
node: t,
record: this.store.getAt(rowIndex),
fieldName: this.grid.getColumnModel().getDataIndex(columnIndex)
}
}
}
},
// On Node enter, see if it is valid for us to drop the field on that type of column.
onNodeEnter: function(target, dd, e, dragData) {
delete this.dropOK;
if (!target) {
return;
}
// Check that a field is being dragged.
var f = dragData.field;
if (!f) {
return;
}
// Check whether the data type of the column being dropped on accepts the
// dragged field type. If so, set dropOK flag, and highlight the target node.
var type = target.record.fields.get(target.fieldName).type;
switch (type) {
case 'float':
case 'int':
if (!f.isXType('numberfield')) {
return;
}
break;
case 'date':
if (!f.isXType('datefield')) {
return;
}
break;
case 'boolean':
if (!f.isXType('checkbox')) {
return;
}
}
this.dropOK = true;
Ext.fly(target.node).addClass('x-drop-target-active');
},
// Return the class name to add to the drag proxy. This provides a visual indication
// of drop allowed or not allowed.
onNodeOver: function(target, dd, e, dragData) {
return this.dropOK ? this.dropAllowed : this.dropNotAllowed;
},
// nhighlight the target node.
onNodeOut: function(target, dd, e, dragData) {
Ext.fly(target.node).removeClass('x-drop-target-active');
},
// Process the drop event if we have previously ascertained that a drop is OK.
onNodeDrop: function(target, dd, e, dragData) {
if (this.dropOK) {
target.record.set(target.fieldName, dragData.field.getValue());
return true;
}
}
});
// A class which makes Fields within a Panel draggable.
// the dragData delivered to a coooperating DropZone's methods contains
// the dragged Field in the property "field".
Ext.ux.PanelFieldDragZone = Ext.extend(Ext.dd.DragZone, {
constructor: function(){},
// Call the DRagZone's constructor. The Panel must have been rendered.
init: function(panel) {
if (panel.nodeType) {
Ext.ux.PanelFieldDragZone.superclass.init.apply(this, arguments);
} else {
if (panel.rendered) {
Ext.ux.PanelFieldDragZone.superclass.constructor.call(this, panel.getEl());
var i = Ext.fly(panel.getEl()).select('input');
i.unselectable();
} else {
panel.on('afterlayout', this.init, this, {single: true});
}
}
},
scroll: false,
// On mousedown, we ascertain whether it is on one of our draggable Fields.
// If so, we collect data about the draggable object, and return a drag data
// object which contains our own data, plus a "ddel" property which is a DOM
// node which provides a "view" of the dragged data.
getDragData: function(e) {
var t = e.getTarget('input');
if (t) {
e.stopEvent();
// Ugly code to "detach" the drag gesture from the input field.
// Without this, Opera never changes the mouseover target from the input field
// even when dragging outside of the field - it just keeps selecting.
if (Ext.isOpera) {
Ext.fly(t).on('mousemove', function(e1){
t.style.visibility = 'hidden';
(function(){
t.style.visibility = '';
}).defer(1);
}, null, {single:true});
}
// Get the data we are dragging: the Field
// create a ddel for the drag proxy to display
var f = Ext.getCmp(t.id);
var d = document.createElement('div');
d.className = 'x-form-text';
d.appendChild(document.createTextNode(t.value));
Ext.fly(d).setWidth(f.getEl().getWidth());
return {
field: f,
ddel: d
};
}
},
// The coordinates to slide the drag proxy back to on failed drop.
getRepairXY: function() {
return this.dragData.field.getEl().getXY();
}
});
Ext.onReady(function(){
var myData = [
['3m Co',71.72,0.02,0.03,'9/1 12:00am'],
['Alcoa Inc',29.01,0.42,1.47,'9/1 12:00am'],
['Altria Group Inc',83.81,0.28,0.34,'9/1 12:00am'],
['American Express Company',52.55,0.01,0.02,'9/1 12:00am'],
['American International Group, Inc.',64.13,0.31,0.49,'9/1 12:00am'],
['AT&T Inc.',31.61,-0.48,-1.54,'9/1 12:00am'],
['Boeing Co.',75.43,0.53,0.71,'9/1 12:00am'],
['Caterpillar Inc.',67.27,0.92,1.39,'9/1 12:00am'],
['Citigroup, Inc.',49.37,0.02,0.04,'9/1 12:00am'],
['E.I. du Pont de Nemours and Company',40.48,0.51,1.28,'9/1 12:00am'],
['Exxon Mobil Corp',68.1,-0.43,-0.64,'9/1 12:00am'],
['General Electric Company',34.14,-0.08,-0.23,'9/1 12:00am'],
['General Motors Corporation',30.27,1.09,3.74,'9/1 12:00am'],
['Hewlett-Packard Co.',36.53,-0.03,-0.08,'9/1 12:00am'],
['Honeywell Intl Inc',38.77,0.05,0.13,'9/1 12:00am'],
['Intel Corporation',19.88,0.31,1.58,'9/1 12:00am'],
['International Business Machines',81.41,0.44,0.54,'9/1 12:00am'],
['Johnson & Johnson',64.72,0.06,0.09,'9/1 12:00am'],
['JP Morgan & Chase & Co',45.73,0.07,0.15,'9/1 12:00am'],
['McDonald\'s Corporation',36.76,0.86,2.40,'9/1 12:00am'],
['Merck & Co., Inc.',40.96,0.41,1.01,'9/1 12:00am'],
['Microsoft Corporation',25.84,0.14,0.54,'9/1 12:00am'],
['Pfizer Inc',27.96,0.4,1.45,'9/1 12:00am'],
['The Coca-Cola Company',45.07,0.26,0.58,'9/1 12:00am'],
['The Home Depot, Inc.',34.64,0.35,1.02,'9/1 12:00am'],
['The Procter & Gamble Company',61.91,0.01,0.02,'9/1 12:00am'],
['United Technologies Corporation',63.26,0.55,0.88,'9/1 12:00am'],
['Verizon Communications',35.57,0.39,1.11,'9/1 12:00am'],
['Wal-Mart Stores, Inc.',45.45,0.73,1.63,'9/1 12:00am']
];
// example of custom renderer function
function change(val){
if(val > 0){
return '<span style="color:green;">' + val + '</span>';
}else if(val < 0){
return '<span style="color:red;">' + val + '</span>';
}
return val;
}
// example of custom renderer function
function pctChange(val){
if(val > 0){
return '<span style="color:green;">' + val + '%</span>';
}else if(val < 0){
return '<span style="color:red;">' + val + '%</span>';
}
return val;
}
// create the data store
var store = new Ext.data.ArrayStore({
fields: [
{name: 'company'},
{name: 'price', type: 'float'},
{name: 'change', type: 'float'},
{name: 'pctChange', type: 'float'},
{name: 'lastChange', type: 'date', dateFormat: 'n/j h:ia'}
]
});
store.loadData(myData);
var helpWindow = new Ext.Window({
title: 'Source code',
width: 920,
height: 500,
closeAction: 'hide',
bodyCfg: {tag: 'textarea', readonly: true},
bodyStyle: {
backgroundColor: 'white',
margin: '0px',
border: '0px none'
},
listeners: {
render: function(w) {
Ext.Ajax.request({
url: 'field-to-grid-dd.js',
success: function(r) {
w.body.dom.value = r.responseText;
}
});
}
}
});
// create the Grid
var grid = new Ext.grid.GridPanel({
store: store,
columns: [
{id:'company',header: "Company", width: 160, sortable: true, dataIndex: 'company'},
{header: "Price", width: 75, sortable: true, renderer: 'usMoney', dataIndex: 'price'},
{header: "Change", width: 75, sortable: true, renderer: change, dataIndex: 'change'},
{header: "% Change", width: 75, sortable: true, renderer: pctChange, dataIndex: 'pctChange'},
{header: "Last Updated", width: 85, sortable: true, renderer: Ext.util.Format.dateRenderer('m/d/Y'), dataIndex: 'lastChange'}
],
plugins: new Ext.ux.CellFieldDropZone(),
stripeRows: true,
autoExpandColumn: 'company',
height:350,
width:600,
title:'Array Grid',
bbar: new Ext.PagingToolbar({
buttons: [{
text: 'View Source',
handler: function() {
helpWindow.show();
}
}],
store: store,
pageSize: 25
})
});
grid.render('grid-example');
grid.getSelectionModel().selectFirstRow();
var f = new Ext.Panel({
frame: true,
layout: 'form',
width: 600,
plugins: new Ext.ux.PanelFieldDragZone(),
style: {
'margin-top': '10px'
},
labelWidth: 150,
items: [{
xtype: 'textfield',
fieldLabel: 'Drag this text',
value: 'test'
},{
xtype: 'numberfield',
fieldLabel: 'Drag this number',
value: '1.2'
},{
xtype: 'datefield',
fieldLabel: 'Drag this date',
value: new Date()
}],
renderTo: Ext.getBody()
});
});
</script>
<div id="grid-example"></div>
</body>
</html>
]]>