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Made Events class more generic; the Events constructor now takes a list of supported application event types. Added tests for the Events class.

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git-svn-id: http://svn.openlayers.org/trunk/openlayers@61 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
This commit is contained in:
Schuyler Erle
2006-05-16 21:48:56 +00:00
parent d4fd4f7803
commit ce6c4acd63
4 changed files with 87 additions and 28 deletions
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60
lib/OpenLayers/Events.js
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@@ -1,41 +1,46 @@
OpenLayers.Events = Class.create();
OpenLayers.Events.prototype = {
// hash of Array(Function)
listeners: null,
// OpenLayers.Map
map: null,
// DOMElement
div: null,
// supported events
// Array: supported events
BROWSER_EVENTS: [
"mouseover", "mouseout",
"mousedown", "mouseup", "mousemove",
"click", "dblclick"
],
MAP_EVENTS: [
"mouseover", "mouseout",
"mousedown", "mouseup", "mousemove",
"click", "dblclick"
],
// hash of Array(Function): events listener functions
listeners: null,
// Object: the code object issuing application events
object: null,
// DOMElement: the DOM element receiving browser events
div: null,
// Array: list of support application events
eventTypes: null,
/**
* @param {OpenLayers.Map} map
* @param {DOMElement} div
*/
initialize: function (map, div) {
this.listeners = {};
this.map = map;
this.div = div;
for (var i = 0; i < this.MAP_EVENTS.length; i++) {
this.listeners[ this.MAP_EVENTS[i] ] = [];
initialize: function (object, div, eventTypes) {
this.listeners = {};
this.object = object;
this.div = div;
this.eventTypes = eventTypes;
for (var i = 0; i < this.eventTypes.length; i++) {
// create a listener list for every custom application event
this.listeners[ this.eventTypes[i] ] = [];
}
for (var i = 0; i < this.BROWSER_EVENTS.length; i++) {
var eventName = this.BROWSER_EVENTS[i];
Event.observe(div, eventName,
var eventType = this.BROWSER_EVENTS[i];
// every browser event has a corresponding application event
// (whether it's listened for or not).
this.listeners[ eventType ] = [];
Event.observe(div, eventType,
this.handleBrowserEvent.bindAsEventListener(this));
}
},
@@ -55,7 +60,7 @@ OpenLayers.Events.prototype = {
*/
handleBrowserEvent: function (evt) {
evt.xy = this.getMousePosition(evt);
this.triggerMapEvent(evt.type, evt)
this.triggerEvent(evt.type, evt)
},
/**
@@ -74,8 +79,11 @@ OpenLayers.Events.prototype = {
* @param {str} type
* @param {event} evt
*/
triggerMapEvent: function (type, evt) {
evt.map = this.map;
triggerEvent: function (type, evt) {
if (evt == null) {
evt = {};
}
evt.object = this.object;
var listeners = this.listeners[type];
for (var i = 0; i < listeners.length; i++) {