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protect unregister() from someone trying to unregister an un-enabled event. total extreme case, but whatever. added test.

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git-svn-id: http://svn.openlayers.org/trunk/openlayers@873 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
This commit is contained in:
euzuro
2006-07-04 13:23:11 +00:00
parent 83eb0e1b34
commit 56472f15a0
2 changed files with 9 additions and 6 deletions
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10
lib/OpenLayers/Events.js
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@@ -121,10 +121,12 @@ OpenLayers.Events.prototype = {
obj = this.object;
}
var listeners = this.listeners[type];
for (var i = 0; i < listeners.length; i++) {
if (listeners[i].obj == obj && listeners[i].func == func) {
listeners.splice(i, 1);
break;
if (listeners != null) {
for (var i = 0; i < listeners.length; i++) {
if (listeners[i].obj == obj && listeners[i].func == func) {
listeners.splice(i, 1);
break;
}
}
}
},

5
tests/test_Events.html
View File

@@ -41,7 +41,7 @@
function test_02_Events_register_unregister(t) {
t.plan( 14 );
t.plan( 15 );
var mapDiv = $('map');
var obj = {result: 0};
@@ -105,7 +105,8 @@
}
t.ok( (listenerList.length == 1) && !found, "unregister correctly removes callback when no obj specified" );
events.unregister("chicken", null, func3);
t.ok( events.listeners["chicken"] == null, "unregistering an event that is not enabled does not wierdly enable it -- or cause a script error")
}
function test_03_Events_remove(t) {