goog.module.ModuleLoader
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A class that loads JavaScript modules.
new ModuleLoader()
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Instance Methods
this.addEventListener( type, handler, opt_capture, opt_handlerScope ) → void
void
Adds an event listener to the event target. The same handler can only be added once per the type. Even if you add the same handler multiple times using the same type then it will only be called once when the event is dispatched.
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this.addOnDisposeCallback<T>( callback, opt_scope ) → void
void
Invokes a callback function when this object is disposed. Callbacks are invoked in the order in which they were added. If a callback is added to an already disposed Disposable, it will be called immediately.
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this.dispatchEvent( e ) → boolean
boolean
Dispatches an event (or event like object) and calls all listeners listening for events of this type. The type of the event is decided by the type property on the event object.
If any of the listeners returns false OR calls preventDefault then this function will return false. If one of the capture listeners calls stopPropagation, then the bubble listeners won't fire.
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this.dispose() → ?
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Disposes of the object and its resources.
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this.disposeInternal() → void
void
Removes listeners from this object. Classes that extend EventTarget may need to override this method in order to remove references to DOM Elements and additional listeners.
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this.fireListeners<EVENTOBJ>( type, capture, eventObject ) → boolean
boolean
Fires all registered listeners in this listenable for the given type and capture mode, passing them the given eventObject. This does not perform actual capture/bubble. Only implementors of the interface should be using this.
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this.getDebugMode() → boolean
boolean
Gets the debug mode for the loader.
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this.getDisposed() → boolean
boolean
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this.getListener<SCOPE, EVENTOBJ>( type, listener, capture, opt_listenerScope ) → (goog.events.ListenableKey|null)
(goog.events.ListenableKey|null)
Gets the goog.events.ListenableKey for the event or null if no such listener is in use.
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this.getListeners<EVENTOBJ>( type, capture ) → Array<goog.events.ListenableKey>
Array<goog.events.ListenableKey>
Gets all listeners in this listenable for the given type and capture mode.
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this.getParentEventTarget() → (goog.events.Listenable|null)
(goog.events.Listenable|null)
Returns the parent of this event target to use for capture/bubble mechanism.
NOTE(chrishenry): The name reflects the original implementation of
custom event target (goog.events.EventTarget
). We decided
that changing the name is not worth it.
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this.getUseScriptTags() → boolean
boolean
Gets whether we're using non-async script tags for loading.
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this.hasListener<EVENTOBJ>( opt_type, opt_capture ) → boolean
boolean
Whether there is any active listeners matching the specified signature. If either the type or capture parameters are unspecified, the function will match on the remaining criteria.
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this.isDisposed() → boolean
boolean
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this.listen<SCOPE, EVENTOBJ>( type, listener, opt_useCapture, opt_listenerScope ) → goog.events.ListenableKey
goog.events.ListenableKey
Adds an event listener. A listener can only be added once to an object and if it is added again the key for the listener is returned. Note that if the existing listener is a one-off listener (registered via listenOnce), it will no longer be a one-off listener after a call to listen().
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this.listenOnce<SCOPE, EVENTOBJ>( type, listener, opt_useCapture, opt_listenerScope ) → goog.events.ListenableKey
goog.events.ListenableKey
Adds an event listener that is removed automatically after the listener fired once.
If an existing listener already exists, listenOnce will do nothing. In particular, if the listener was previously registered via listen(), listenOnce() will not turn the listener into a one-off listener. Similarly, if there is already an existing one-off listener, listenOnce does not modify the listeners (it is still a once listener).
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this.loadModules( ids, moduleInfoMap, loadOptions ) → void
void
Loads a list of JavaScript modules.
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this.prefetchModule( id, moduleInfo ) → void
void
Pre-fetches a JavaScript module.
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this.registerDisposable( disposable ) → void
void
Associates a disposable object with this object so that they will be disposed together.
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this.removeAllListeners( opt_type ) → number
number
Removes all listeners from this listenable. If type is specified, it will only remove listeners of the particular type. otherwise all registered listeners will be removed.
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this.removeEventListener( type, handler, opt_capture, opt_handlerScope ) → void
void
Removes an event listener from the event target. The handler must be the same object as the one added. If the handler has not been added then nothing is done.
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this.setDebugMode( debugMode ) → void
void
Sets whether we're using non-async script tags for loading.
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this.setParentEventTarget( parent ) → void
void
Sets the parent of this event target to use for capture/bubble mechanism.
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this.setSourceUrlInjection( enabled ) → void
void
When enabled, we will add a sourceURL comment to the end of all scripts to mark their origin.
On WebKit, stack traces will reflect the sourceURL comment, so this is useful for debugging webkit stack traces in production.
Notice that in debug mode, we will use source url injection + eval rather then appending script nodes to the DOM, because the scripts will load far faster. (Appending script nodes is very slow, because we can't parallelize the downloading and evaling of the script).
The cost of appending sourceURL information is negligible when compared to the cost of evaling the script. Almost all clients will want this on.
TODO(nicksantos): Turn this on by default. We may want to turn this off for clients that inject their own sourceURL.
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this.setTargetForTesting( target ) → void
void
Sets the target to be used for event.target
when firing
event. Mainly used for testing. For example, see
goog.testing.events.mixinListenable
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this.setUseScriptTags( useScriptTags ) → void
void
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this.unlisten<SCOPE, EVENTOBJ>( type, listener, opt_useCapture, opt_listenerScope ) → boolean
boolean
Removes an event listener which was added with listen() or listenOnce().
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this.unlistenByKey( key ) → boolean
boolean
Removes an event listener which was added with listen() by the key returned by listen().
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Instance Properties
this.creationStack → (string|undefined)
(string|undefined)
If monitoring the goog.Disposable instances is enabled, stores the creation stack trace of the Disposable instance.
this.logger → (goog.log.Logger|null)
(goog.log.Logger|null)
A logger.
this.supportsExtraEdges → (boolean|undefined)
(boolean|undefined)
Whether or not the implementation supports extra edges.
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Exported Functions
supportsSourceUrlDebugger() → boolean
boolean
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supportsSourceUrlStackTraces() → boolean
boolean
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Exported Properties
EventType → {EVALUATE_CODE: goog.events.EventId<goog.module.ModuleLoader.EvaluateCodeEvent>, REQUEST_ERROR: goog.events.EventId<goog.module.ModuleLoader.RequestErrorEvent>, REQUEST_SUCCESS: goog.events.EventId<goog.module.ModuleLoader.RequestSuccessEvent>}
{EVALUATE_CODE: goog.events.EventId<goog.module.ModuleLoader.EvaluateCodeEvent>, REQUEST_ERROR: goog.events.EventId<goog.module.ModuleLoader.RequestErrorEvent>, REQUEST_SUCCESS: goog.events.EventId<goog.module.ModuleLoader.RequestSuccessEvent>}
Events dispatched by the ModuleLoader.