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<title>The source code</title>
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<pre class="prettyprint lang-js">/*!
* Ext JS Library 3.3.1
* Copyright(c) 2006-2010 Sencha Inc.
* licensing@sencha.com
* http://www.sencha.com/license
*/
/*
* Internal drag zone implementation for the calendar day and week views.
*/
Ext.calendar.DayViewDragZone = Ext.extend(Ext.calendar.DragZone, {
ddGroup: 'DayViewDD',
resizeSelector: '.ext-evt-rsz',
getDragData: function(e) {
var t = e.getTarget(this.resizeSelector, 2, true),
p,
rec;
if (t) {
p = t.parent(this.eventSelector);
rec = this.view.getEventRecordFromEl(p);
return {
type: 'eventresize',
ddel: p.dom,
eventStart: rec.data[Ext.calendar.EventMappings.StartDate.name],
eventEnd: rec.data[Ext.calendar.EventMappings.EndDate.name],
proxy: this.proxy
};
}
t = e.getTarget(this.eventSelector, 3);
if (t) {
rec = this.view.getEventRecordFromEl(t);
return {
type: 'eventdrag',
ddel: t,
eventStart: rec.data[Ext.calendar.EventMappings.StartDate.name],
eventEnd: rec.data[Ext.calendar.EventMappings.EndDate.name],
proxy: this.proxy
};
}
// If not dragging/resizing an event then we are dragging on
// the calendar to add a new event
t = this.view.getDayAt(e.getPageX(), e.getPageY());
if (t.el) {
return {
type: 'caldrag',
dayInfo: t,
proxy: this.proxy
};
}
return null;
}
});
/*
* Internal drop zone implementation for the calendar day and week views.
*/
Ext.calendar.DayViewDropZone = Ext.extend(Ext.calendar.DropZone, {
ddGroup: 'DayViewDD',
onNodeOver: function(n, dd, e, data) {
var dt,
box,
endDt,
text = this.createText,
curr,
start,
end,
evtEl,
dayCol;
if (data.type == 'caldrag') {
if (!this.dragStartMarker) {
// Since the container can scroll, this gets a little tricky.
// There is no el in the DOM that we can measure by default since
// the box is simply calculated from the original drag start (as opposed
// to dragging or resizing the event where the orig event box is present).
// To work around this we add a placeholder el into the DOM and give it
// the original starting time's box so that we can grab its updated
// box measurements as the underlying container scrolls up or down.
// This placeholder is removed in onNodeDrop.
this.dragStartMarker = n.el.parent().createChild({
style: 'position:absolute;'
});
this.dragStartMarker.setBox(n.timeBox);
this.dragCreateDt = n.date;
}
box = this.dragStartMarker.getBox();
box.height = Math.ceil(Math.abs(e.xy[1] - box.y) / n.timeBox.height) * n.timeBox.height;
if (e.xy[1] < box.y) {
box.height += n.timeBox.height;
box.y = box.y - box.height + n.timeBox.height;
endDt = this.dragCreateDt.add(Date.MINUTE, 30);
}
else {
n.date = n.date.add(Date.MINUTE, 30);
}
this.shim(this.dragCreateDt, box);
curr = Ext.calendar.Date.copyTime(n.date, this.dragCreateDt);
this.dragStartDate = Ext.calendar.Date.min(this.dragCreateDt, curr);
this.dragEndDate = endDt || Ext.calendar.Date.max(this.dragCreateDt, curr);
dt = this.dragStartDate.format('g:ia-') + this.dragEndDate.format('g:ia');
}
else {
evtEl = Ext.get(data.ddel);
dayCol = evtEl.parent().parent();
box = evtEl.getBox();
box.width = dayCol.getWidth();
if (data.type == 'eventdrag') {
if (this.dragOffset === undefined) {
this.dragOffset = n.timeBox.y - box.y;
box.y = n.timeBox.y - this.dragOffset;
}
else {
box.y = n.timeBox.y;
}
dt = n.date.format('n/j g:ia');
box.x = n.el.getLeft();
this.shim(n.date, box);
text = this.moveText;
}
if (data.type == 'eventresize') {
if (!this.resizeDt) {
this.resizeDt = n.date;
}
box.x = dayCol.getLeft();
box.height = Math.ceil(Math.abs(e.xy[1] - box.y) / n.timeBox.height) * n.timeBox.height;
if (e.xy[1] < box.y) {
box.y -= box.height;
}
else {
n.date = n.date.add(Date.MINUTE, 30);
}
this.shim(this.resizeDt, box);
curr = Ext.calendar.Date.copyTime(n.date, this.resizeDt);
start = Ext.calendar.Date.min(data.eventStart, curr);
end = Ext.calendar.Date.max(data.eventStart, curr);
data.resizeDates = {
StartDate: start,
EndDate: end
};
dt = start.format('g:ia-') + end.format('g:ia');
text = this.resizeText;
}
}
data.proxy.updateMsg(String.format(text, dt));
return this.dropAllowed;
},
shim: function(dt, box) {
Ext.each(this.shims,
function(shim) {
if (shim) {
shim.isActive = false;
shim.hide();
}
});
var shim = this.shims[0];
if (!shim) {
shim = this.createShim();
this.shims[0] = shim;
}
shim.isActive = true;
shim.show();
shim.setBox(box);
},
onNodeDrop: function(n, dd, e, data) {
var rec;
if (n && data) {
if (data.type == 'eventdrag') {
rec = this.view.getEventRecordFromEl(data.ddel);
this.view.onEventDrop(rec, n.date);
this.onCalendarDragComplete();
delete this.dragOffset;
return true;
}
if (data.type == 'eventresize') {
rec = this.view.getEventRecordFromEl(data.ddel);
this.view.onEventResize(rec, data.resizeDates);
this.onCalendarDragComplete();
delete this.resizeDt;
return true;
}
if (data.type == 'caldrag') {
Ext.destroy(this.dragStartMarker);
delete this.dragStartMarker;
delete this.dragCreateDt;
this.view.onCalendarEndDrag(this.dragStartDate, this.dragEndDate,
this.onCalendarDragComplete.createDelegate(this));
//shims are NOT cleared here -- they stay visible until the handling
//code calls the onCalendarDragComplete callback which hides them.
return true;
}
}
this.onCalendarDragComplete();
return false;
}
});
</pre>
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