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Fixed several destroy() methods to avoid running into undefined objects when the page unloads. r=crschmidt,me (closes #1222)

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git-svn-id: http://svn.openlayers.org/trunk/openlayers@6172 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
This commit is contained in:
ahocevar
2008-02-09 18:51:48 +00:00
parent 8e2b4956f2
commit 886b963ce5
3 changed files with 14 additions and 11 deletions
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1
lib/OpenLayers/Control.js
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@@ -166,6 +166,7 @@ OpenLayers.Control = OpenLayers.Class({
*/
destroy: function () {
this.events.destroy();
this.events = null;
// eliminate circular references
if (this.handler) {
this.handler.destroy();

12
lib/OpenLayers/Control/Panel.js
View File

@@ -45,11 +45,13 @@ OpenLayers.Control.Panel = OpenLayers.Class(OpenLayers.Control, {
destroy: function() {
OpenLayers.Control.prototype.destroy.apply(this, arguments);
for(var i = this.controls.length - 1 ; i >= 0; i--) {
this.controls[i].events.un({
"activate": this.redraw,
"deactivate": this.redraw,
scope: this
});
if(this.controls[i].events) {
this.controls[i].events.un({
"activate": this.redraw,
"deactivate": this.redraw,
scope: this
});
}
OpenLayers.Event.stopObservingElement(this.controls[i].panel_div);
this.controls[i].panel_div = null;
}

12
lib/OpenLayers/Map.js
View File

@@ -485,6 +485,12 @@ OpenLayers.Map = OpenLayers.Class({
this.events.unregister("resize", this, this.updateSize);
}
if (this.controls != null) {
for (var i = this.controls.length - 1; i>=0; --i) {
this.controls[i].destroy();
}
this.controls = null;
}
if (this.layers != null) {
for (var i = this.layers.length - 1; i>=0; --i) {
//pass 'false' to destroy so that map wont try to set a new
@@ -493,12 +499,6 @@ OpenLayers.Map = OpenLayers.Class({
}
this.layers = null;
}
if (this.controls != null) {
for (var i = this.controls.length - 1; i>=0; --i) {
this.controls[i].destroy();
}
this.controls = null;
}
if (this.viewPortDiv) {
this.div.removeChild(this.viewPortDiv);
}