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use goog.fx.Dragger for map drag

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This commit is contained in:
Éric Lemoine
2012-07-23 23:26:48 +02:00
parent 58bd2182a6
commit 6d28ad2740
2 changed files with 53 additions and 38 deletions
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src/ol/control/drag.js
+27 -31
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@@ -1,8 +1,7 @@
// FIXME support touch events?
// FIXME use goog.fx.Dragger in ol.Map instead?
goog.provide('ol.control.Drag');
goog.require('goog.asserts');
goog.require('goog.events.EventType');
goog.require('goog.functions');
goog.require('ol.Control');
@@ -85,40 +84,37 @@ ol.control.Drag.prototype.handleDragEnd = goog.nullFunction;
* @inheritDoc
*/
ol.control.Drag.prototype.handleMapBrowserEvent = function(mapBrowserEvent) {
var center = mapBrowserEvent.map.getCenter();
var resolution = mapBrowserEvent.map.getResolution();
var map = mapBrowserEvent.map;
var center = map.getCenter();
var resolution = map.getResolution();
if (!goog.isDef(center) || !goog.isDef(resolution)) {
return;
}
var browserEvent;
var browserEvent = mapBrowserEvent.browserEvent;
if (this.dragging_) {
if (mapBrowserEvent.type == goog.events.EventType.MOUSEMOVE ||
mapBrowserEvent.type == goog.events.EventType.MOUSEOUT ||
mapBrowserEvent.type == goog.events.EventType.MOUSEUP) {
browserEvent = mapBrowserEvent.browserEvent;
this.deltaX = browserEvent.offsetX - this.startX;
this.deltaY = browserEvent.offsetY - this.startY;
if (mapBrowserEvent.type == goog.events.EventType.MOUSEMOVE) {
this.handleDrag(mapBrowserEvent);
} else {
this.handleDragEnd(mapBrowserEvent);
this.dragging_ = false;
}
mapBrowserEvent.preventDefault();
if (mapBrowserEvent.type == goog.fx.Dragger.EventType.DRAG) {
goog.asserts.assert(browserEvent instanceof goog.events.BrowserEvent);
this.deltaX = browserEvent.clientX - this.startX;
this.deltaY = browserEvent.clientY - this.startY;
this.handleDrag(mapBrowserEvent);
} else if (mapBrowserEvent.type == goog.fx.Dragger.EventType.END) {
goog.asserts.assert(browserEvent instanceof goog.events.BrowserEvent);
this.deltaX = browserEvent.clientX - this.startX;
this.deltaY = browserEvent.clientY - this.startY;
this.handleDragEnd(mapBrowserEvent);
this.dragging_ = false;
}
} else {
if (mapBrowserEvent.type == goog.events.EventType.MOUSEDOWN) {
browserEvent = mapBrowserEvent.browserEvent;
this.startX = browserEvent.offsetX;
this.startY = browserEvent.offsetY;
this.deltaX = 0;
this.deltaY = 0;
this.startCenter = center;
this.startCoordinate = mapBrowserEvent.getCoordinate();
if (this.handleDragStart(mapBrowserEvent)) {
this.dragging_ = true;
mapBrowserEvent.preventDefault();
}
} else if (mapBrowserEvent.type == goog.fx.Dragger.EventType.START) {
goog.asserts.assert(browserEvent instanceof goog.events.BrowserEvent);
this.startX = browserEvent.clientX;
this.startY = browserEvent.clientY;
this.deltaX = 0;
this.deltaY = 0;
this.startCenter = center;
this.startCoordinate = mapBrowserEvent.getCoordinate();
if (this.handleDragStart(mapBrowserEvent)) {
this.dragging_ = true;
mapBrowserEvent.preventDefault();
}
}
};