/*
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* Here is where we "activate" the DataView.
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* We have decided that each node with the class "patient-source" encapsulates a single draggable
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* object.
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*
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* So we inject code into the DragZone which, when passed a mousedown event, interrogates
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* the event to see if it was within an element with the class "patient-source". If so, we
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* return non-null drag data.
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*
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* Returning non-null drag data indicates that the mousedown event has begun a dragging process.
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* The data must contain a property called "ddel" which is a DOM element which provides an image
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* of the data being dragged. The actual node clicked on is not dragged, a proxy element is dragged.
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* We can insert any other data into the data object, and this will be used by a cooperating DropZone
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* to perform the drop operation.
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*/
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function initializePatientDragZone(v) {
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v.dragZone = Ext.create('Ext.dd.DragZone', v.getEl(), {
|
|
// On receipt of a mousedown event, see if it is within a draggable element.
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// Return a drag data object if so. The data object can contain arbitrary application
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// data, but it should also contain a DOM element in the ddel property to provide
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// a proxy to drag.
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getDragData: function(e) {
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var sourceEl = e.getTarget(v.itemSelector, 10), d;
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if (sourceEl) {
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d = sourceEl.cloneNode(true);
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d.id = Ext.id();
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return (v.dragData = {
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sourceEl: sourceEl,
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repairXY: Ext.fly(sourceEl).getXY(),
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ddel: d,
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patientData: v.getRecord(sourceEl).data
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});
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}
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},
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// Provide coordinates for the proxy to slide back to on failed drag.
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// This is the original XY coordinates of the draggable element.
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getRepairXY: function() {
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return this.dragData.repairXY;
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}
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});
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}
|
|
/*
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* Here is where we "activate" the GridPanel.
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* We have decided that the element with class "hospital-target" is the element which can receieve
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* drop gestures. So we inject a method "getTargetFromEvent" into the DropZone. This is constantly called
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* while the mouse is moving over the DropZone, and it returns the target DOM element if it detects that
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* the mouse if over an element which can receieve drop gestures.
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*
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* Once the DropZone has been informed by getTargetFromEvent that it is over a target, it will then
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* call several "onNodeXXXX" methods at various points. These include:
|
*
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* onNodeEnter
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* onNodeOut
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* onNodeOver
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* onNodeDrop
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*
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* We provide implementations of each of these to provide behaviour for these events.
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*/
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function initializeHospitalDropZone(v) {
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var gridView = v,
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grid = gridView.up('gridpanel');
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grid.dropZone = Ext.create('Ext.dd.DropZone', v.el, {
|
|
// If the mouse is over a target node, return that node. This is
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// provided as the "target" parameter in all "onNodeXXXX" node event handling functions
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getTargetFromEvent: function(e) {
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return e.getTarget('.hospital-target');
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},
|
|
// On entry into a target node, highlight that node.
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onNodeEnter : function(target, dd, e, data){
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Ext.fly(target).addCls('hospital-target-hover');
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},
|
|
// On exit from a target node, unhighlight that node.
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onNodeOut : function(target, dd, e, data){
|
Ext.fly(target).removeCls('hospital-target-hover');
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},
|
|
// While over a target node, return the default drop allowed class which
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// places a "tick" icon into the drag proxy.
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onNodeOver : function(target, dd, e, data){
|
return Ext.dd.DropZone.prototype.dropAllowed;
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},
|
|
// On node drop, we can interrogate the target node to find the underlying
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// application object that is the real target of the dragged data.
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// In this case, it is a Record in the GridPanel's Store.
|
// We can use the data set up by the DragZone's getDragData method to read
|
// any data we decided to attach.
|
onNodeDrop : function(target, dd, e, data){
|
var rowBody = Ext.fly(target).findParent('.x-grid-rowbody-tr', null, false),
|
mainRow = rowBody.previousSibling,
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h = gridView.getRecord(mainRow),
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targetEl = Ext.get(target),
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html = targetEl.dom.innerHTML;
|
|
if (html == 'Drop Patient Here') {
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html = data.patientData.name
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} else {
|
html = data.patientData.name + ', ' + targetEl.dom.innerHTML;
|
}
|
|
targetEl.update(html);
|
Ext.Msg.alert('Drop gesture', 'Dropped patient ' + data.patientData.name +
|
' on hospital ' + h.data.name);
|
return true;
|
}
|
});
|
}
|
|
|
Ext.require(['*']);
|
|
Ext.onReady(function() {
|
|
var patients = [{
|
insuranceCode: '11111',
|
name: 'Fred Bloggs',
|
address: 'Main Street',
|
telephone: '555 1234 123'
|
}, {
|
insuranceCode: '22222',
|
name: 'Fred Bansod',
|
address: 'Van Ness',
|
telephone: '666 666 666'
|
}, {
|
insuranceCode: '33333',
|
name: 'Fred Mercury',
|
address: 'Over The Rainbow',
|
telephone: '555 321 0987'
|
}, {
|
insuranceCode: '44444',
|
name: 'Fred Forsyth',
|
address: 'Blimp Street',
|
telephone: '555 111 2222'
|
}, {
|
insuranceCode: '55555',
|
name: 'Fred Douglass',
|
address: 'Talbot County, Maryland',
|
telephone: 'N/A'
|
}];
|
|
Ext.define('Patient', {
|
extend: 'Ext.data.Model',
|
idProperty: 'insuranceCode',
|
fields: [{
|
name: 'name'
|
}, {
|
name: 'address'
|
}, {
|
name: 'telephone'
|
}]
|
});
|
|
var patientStore = Ext.create('Ext.data.Store', {
|
model: 'Patient',
|
data: patients
|
});
|
|
var hospitals = [{
|
code: 'AAAAA',
|
name: 'Saint Thomas',
|
address: 'Westminster Bridge Road, SE1 7EH',
|
telephone: '020 7188 7188'
|
}, {
|
code: 'BBBBB',
|
name: 'Queen\'s Medical Centre',
|
address: 'Derby Road, NG7 2UH',
|
telephone: '0115 924 9924'
|
}, {
|
code: 'CCCCC',
|
name: 'Saint Bartholomew',
|
address: 'West Smithfield, EC1A 7BE',
|
telephone: '020 7377 7000'
|
}, {
|
code: 'DDDDD',
|
name: 'Royal London',
|
address: 'Whitechapel, E1 1BB',
|
telephone: '020 7377 7000'
|
}];
|
|
Ext.define('Hospital', {
|
extend: 'Ext.data.Model',
|
idProperty: 'code',
|
fields: [{
|
name: 'name'
|
}, {
|
name: 'address'
|
}, {
|
name: 'telephone'
|
}]
|
});
|
|
var hospitalStore = Ext.create('Ext.data.Store', {
|
model: 'Hospital',
|
data: hospitals
|
});
|
|
var patientView = Ext.create('Ext.view.View', {
|
cls: 'patient-view',
|
tpl: '<tpl for=".">' +
|
'<div class="patient-source"><table><tbody>' +
|
'<tr><td class="patient-label">Name</td><td class="patient-name">{name}</td></tr>' +
|
'<tr><td class="patient-label">Address</td><td class="patient-name">{address}</td></tr>' +
|
'<tr><td class="patient-label">Telephone</td><td class="patient-name">{telephone}</td></tr>' +
|
'</tbody></table></div>' +
|
'</tpl>',
|
itemSelector: 'div.patient-source',
|
overItemCls: 'patient-over',
|
selectedItemClass: 'patient-selected',
|
singleSelect: true,
|
store: patientStore,
|
listeners: {
|
render: initializePatientDragZone
|
}
|
});
|
|
var helpWindow = Ext.create('Ext.Window', {
|
title: 'Source code',
|
width: 920,
|
height: 500,
|
closeAction: 'hide',
|
layout: 'fit',
|
items: [
|
{
|
xtype: 'textarea',
|
itemId: 'srcTextArea'
|
}
|
],
|
listeners: {
|
render: function(w) {
|
Ext.Ajax.request({
|
url: 'dragdropzones.js',
|
success: function(r) {
|
w.down('#srcTextArea').setValue(r.responseText);
|
}
|
});
|
}
|
}
|
});
|
|
var hospitalGrid = Ext.create('Ext.grid.Panel', {
|
title: 'Hospitals',
|
region: 'center',
|
margins: '0 5 5 0',
|
bbar: [{
|
text: 'View Source',
|
handler: function() {
|
helpWindow.show();
|
}
|
}],
|
sortableColumns: false,
|
columns: [{
|
dataIndex: 'name',
|
header: 'Name',
|
width: 200
|
}, {
|
dataIndex: 'address',
|
header: 'Address',
|
width: 300
|
}, {
|
dataIndex: 'telephone',
|
header: 'Telephone',
|
width: 100
|
}],
|
features: [{
|
ftype:'rowbody',
|
setup: function(rows, rowValues) {
|
Ext.grid.feature.RowBody.prototype.setup.apply(this, arguments);
|
rowValues.rowBody = 'Drop Patient Here';
|
rowValues.rowBodyDivCls = 'hospital-target';
|
}
|
}],
|
viewConfig: {
|
listeners: {
|
render: initializeHospitalDropZone
|
}
|
},
|
store: hospitalStore
|
});
|
|
Ext.create('Ext.Viewport', {
|
layout: 'border',
|
items: [{
|
cls: 'app-header',
|
region: 'north',
|
height: 30,
|
html: '<h1>Patient Hospital Assignment</h1>',
|
margins: '5 5 5 5'
|
}, {
|
title: 'Patients',
|
region: 'west',
|
width: 300,
|
margins: '0 5 5 5',
|
items: patientView
|
}, hospitalGrid ]
|
});
|
});
|