DropZone.js
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/*
* Internal drop zone implementation for the calendar components. This provides base functionality
* and is primarily for the month view -- DayViewDD adds day/week view-specific functionality.
*/
Ext.define('Ext.calendar.dd.DropZone', {
extend: 'Ext.dd.DropZone',
requires: [
'Ext.Layer',
'Ext.calendar.data.EventMappings'
],
ddGroup: 'CalendarDD',
eventSelector: '.ext-cal-evt',
// private
shims: [],
getTargetFromEvent: function(e) {
var dragOffset = this.dragOffset || 0,
y = e.getPageY() - dragOffset,
d = this.view.getDayAt(e.getPageX(), y);
return d.el ? d: null;
},
onNodeOver: function(n, dd, e, data) {
var D = Ext.calendar.util.Date,
start = data.type == 'eventdrag' ? n.date: D.min(data.start, n.date),
end = data.type == 'eventdrag' ? D.add(n.date, {days: D.diffDays(data.eventStart, data.eventEnd)}) :
D.max(data.start, n.date);
if (!this.dragStartDate || !this.dragEndDate || (D.diffDays(start, this.dragStartDate) != 0) || (D.diffDays(end, this.dragEndDate) != 0)) {
this.dragStartDate = start;
this.dragEndDate = D.add(end, {days: 1, millis: -1, clearTime: true});
this.shim(start, end);
var range = Ext.Date.format(start, 'n/j');
if (D.diffDays(start, end) > 0) {
range += '-' + Ext.Date.format(end, 'n/j');
}
var msg = Ext.util.Format.format(data.type == 'eventdrag' ? this.moveText: this.createText, range);
data.proxy.updateMsg(msg);
}
return this.dropAllowed;
},
shim: function(start, end) {
this.currWeek = -1;
var dt = Ext.Date.clone(start),
i = 0,
shim,
box,
D = Ext.calendar.util.Date,
cnt = D.diffDays(dt, end) + 1;
Ext.each(this.shims,
function(shim) {
if (shim) {
shim.isActive = false;
}
}
);
while (i++<cnt) {
var dayEl = this.view.getDayEl(dt);
// if the date is not in the current view ignore it (this
// can happen when an event is dragged to the end of the
// month so that it ends outside the view)
if (dayEl) {
var wk = this.view.getWeekIndex(dt);
shim = this.shims[wk];
if (!shim) {
shim = this.createShim();
this.shims[wk] = shim;
}
if (wk != this.currWeek) {
shim.boxInfo = dayEl.getBox();
this.currWeek = wk;
}
else {
box = dayEl.getBox();
shim.boxInfo.right = box.right;
shim.boxInfo.width = box.right - shim.boxInfo.x;
}
shim.isActive = true;
}
dt = D.add(dt, {days: 1});
}
Ext.each(this.shims, function(shim) {
if (shim) {
if (shim.isActive) {
shim.show();
shim.setBox(shim.boxInfo);
}
else if (shim.isVisible()) {
shim.hide();
}
}
});
},
createShim: function() {
if (!this.shimCt) {
this.shimCt = Ext.get('ext-dd-shim-ct');
if (!this.shimCt) {
this.shimCt = document.createElement('div');
this.shimCt.id = 'ext-dd-shim-ct';
Ext.getBody().appendChild(this.shimCt);
}
}
var el = document.createElement('div');
el.className = 'ext-dd-shim';
this.shimCt.appendChild(el);
return new Ext.Layer({
shadow: false,
useDisplay: true,
constrain: false
},
el);
},
clearShims: function() {
Ext.each(this.shims,
function(shim) {
if (shim) {
shim.hide();
}
});
},
onContainerOver: function(dd, e, data) {
return this.dropAllowed;
},
onCalendarDragComplete: function() {
delete this.dragStartDate;
delete this.dragEndDate;
this.clearShims();
},
onNodeDrop: function(n, dd, e, data) {
if (n && data) {
if (data.type == 'eventdrag') {
var rec = this.view.getEventRecordFromEl(data.ddel),
dt = Ext.calendar.util.Date.copyTime(rec.data[Ext.calendar.data.EventMappings.StartDate.name], n.date);
this.view.onEventDrop(rec, dt);
this.onCalendarDragComplete();
return true;
}
if (data.type == 'caldrag') {
this.view.onCalendarEndDrag(this.dragStartDate, this.dragEndDate,
Ext.bind(this.onCalendarDragComplete, 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;
},
onContainerDrop: function(dd, e, data) {
this.onCalendarDragComplete();
return false;
}
});