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Give OpenLayers.Map a preremovelayer-event. Thanks to mosesonline for the patch. p=mosesonline, r=me (fixes #3306)

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git-svn-id: http://svn.openlayers.org/trunk/openlayers@12154 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
This commit is contained in:
Marc Jansen
2011-07-05 07:48:28 +00:00
parent 19756915d3
commit 3b70536695
2 changed files with 48 additions and 6 deletions
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19
lib/OpenLayers/Map.js
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@@ -58,9 +58,14 @@ OpenLayers.Map = OpenLayers.Class({
* Supported map event types:
* - *preaddlayer* triggered before a layer has been added. The event
* object will include a *layer* property that references the layer
* to be added.
* to be added. When a listener returns "false" the adding will be
* aborted.
* - *addlayer* triggered after a layer has been added. The event object
* will include a *layer* property that references the added layer.
* - *preremovelayer* triggered before a layer has been removed. The event
* object will include a *layer* property that references the layer
* to be removed. When a listener returns "false" the removal will be
* aborted.
* - *removelayer* triggered after a layer has been removed. The event
* object will include a *layer* property that references the removed
* layer.
@@ -81,7 +86,8 @@ OpenLayers.Map = OpenLayers.Class({
* - *changebaselayer* triggered after the base layer changes
*/
EVENT_TYPES: [
"preaddlayer", "addlayer", "removelayer", "changelayer", "movestart",
"preaddlayer", "addlayer","preremovelayer", "removelayer",
"changelayer", "movestart",
"move", "moveend", "zoomend", "popupopen", "popupclose",
"addmarker", "removemarker", "clearmarkers", "mouseover",
"mouseout", "mousemove", "dragstart", "drag", "dragend",
@@ -957,13 +963,13 @@ OpenLayers.Map = OpenLayers.Class({
return false;
}
}
if (this.events.triggerEvent("preaddlayer", {layer: layer}) === false) {
return;
}
if(this.allOverlays) {
layer.isBaseLayer = false;
}
if (this.events.triggerEvent("preaddlayer", {layer: layer}) === false) {
return;
}
layer.div.className = "olLayerDiv";
layer.div.style.overflow = "";
@@ -1034,6 +1040,9 @@ OpenLayers.Map = OpenLayers.Class({
* setNewBaseLayer - {Boolean} Default is true
*/
removeLayer: function(layer, setNewBaseLayer) {
if (this.events.triggerEvent("preremovelayer", {layer: layer}) === false) {
return;
}
if (setNewBaseLayer == null) {
setNewBaseLayer = true;
}