69 lines
2.2 KiB
JavaScript
69 lines
2.2 KiB
JavaScript
/*global nashorn, exports, require, Packages, __plugin*/
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var cmPriority = Packages.net.canarymod.plugin.Priority,
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cmCanary = Packages.net.canarymod.Canary,
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cmDispatcher = Packages.net.canarymod.hook.Dispatcher,
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cmRegisteredPluginListener = Packages.net.canarymod.plugin.RegisteredPluginListener,
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cmPluginListener = Packages.net.canarymod.plugin.PluginListener;
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var cmHookExecutor = cmCanary.hooks();
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exports.on = function(
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/* Java Class */
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eventType,
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/* function( registeredListener, event) */
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handler,
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/* (optional) String (CRITICAL, HIGH, NORMAL, LOW, PASSIVE), */
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priority ) {
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var handlerList,
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regd,
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eventExecutor;
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if ( typeof priority == 'undefined' ) {
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priority = cmPriority.NORMAL;
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} else {
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priority = cmPriority[priority.toUpperCase().trim()];
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}
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var result = { };
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eventExecutor = __plugin.getDispatcher( function(l,e){
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function cancel(){
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if (e.setCanceled){
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e.setCanceled();
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}
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}
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/*
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let handlers use this.cancel() to cancel the current event
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or this.unregister() to unregister from future events.
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*/
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var bound = {};
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for (var i in result){
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bound[i] = result[i];
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}
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bound.cancel = cancel;
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try {
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handler.call(bound, e, cancel);
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} catch ( error ){
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console.log('Error while executing handler:' + handler +
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' for event type:' + eventType +
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' error: ' + error);
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}
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});
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/*
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wph 20130222 issue #64 bad interaction with Essentials plugin
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if another plugin tries to unregister a Listener (not a Plugin or a RegisteredListener)
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then BOOM! the other plugin will throw an error because Rhino can't coerce an
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equals() method from an Interface.
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The workaround is to make the ScriptCraftPlugin java class a Listener.
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Should only unregister() registered plugins in ScriptCraft js code.
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*/
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if (nashorn){
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// nashorn
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eventType = require('nashorn-type')(eventType);
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}
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regd = new cmPluginListener({});
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cmHookExecutor.registerHook(regd, __plugin, eventType, eventExecutor, priority);
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result.unregister = function(){
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cmHookExecutor.unregisterPluginListener(regd);
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};
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return result;
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};
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