Prevent the default image dragging behavior in IE < 9

openlayers · Jan 24, 2014 · faef6a3 · faef6a3
1 parent a4901e6
commit faef6a3
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diff --git a/css/ol.css b/css/ol.css
@@ -159,6 +159,11 @@ a.ol-full-screen-true:after {
   -ms-user-select: none;
   user-select: none;
   -webkit-tap-highlight-color: rgba(0,0,0,0);
+
+  cursor: default;
+}
+.ol-viewport .ol-unselectable:not([ie8andbelow]) {
+  cursor: auto;
 }
 .ol-zoom {
   position: absolute;

diff --git a/src/ol/renderer/dom/dommaprenderer.js b/src/ol/renderer/dom/dommaprenderer.js
@@ -3,7 +3,9 @@ goog.provide('ol.renderer.dom.Map');
 goog.require('goog.asserts');
 goog.require('goog.dom');
 goog.require('goog.dom.TagName');
+goog.require('goog.functions');
 goog.require('goog.style');
+goog.require('goog.userAgent');
 goog.require('ol.css');
 goog.require('ol.layer.Image');
 goog.require('ol.layer.Tile');
@@ -36,6 +38,14 @@ ol.renderer.dom.Map = function(container, map) {
   style.width = '100%';
   style.height = '100%';
 
+  // in IE < 9, we need to return false from ondragstart to cancel the default
+  // behavior of dragging images, which is interfering with the custom handler
+  // in the Drag interaction subclasses
+  if (goog.userAgent.IE && !goog.userAgent.isVersionOrHigher('9.0')) {
+    this.layersPane_.ondragstart = goog.functions.FALSE;
+    this.layersPane_.onselectstart = goog.functions.FALSE;
+  }
+
   goog.dom.insertChildAt(container, this.layersPane_, 0);
 
   /**