ActionScript 2.0 :: Referencing Movieclip Event Handler Is Called From When Using Delegate?
Aug 24, 2006
I'm using Delegates in a new project I'm working on to call an event handler in my class with the scope of the class.
I'm having an issue referencing which button is calling this handler. Since all of my buttons are created dynamicly, this is a big problem.
I'm used to using forms and components where I had no problem with this and could reference who was calling the event handler by using - event.target
This doesn't seem to be the case with movieclips though, is there another way to do this?
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Apr 3, 2010
I have an AS 3.0 class that loads a JSON file in using a URLRequest.
package {
import flash.display.MovieClip;
import flash.display.Loader;
[Code]....
When the file is finished loading, the mapHandler event makes changes to the class properties, which in turn are accessed using the getMapWidth function. However, if the getMapwidth function gets called before it finishes loading, the program will fail.
How can I make the class wait to accept function calls until after the file is loaded?
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Jul 21, 2010
I need to call FileReference.save() after a web service call has completed, but this method has a restriction: "In Flash Player, you can only call this method successfully in response to a user event (for example, in an event handler for a mouse click or keypress event). Otherwise, calling this method results in Flash Player throwing an Error exception." (from the documentation here)
This restriction is a bit vague. Does it mean that I can only call the FileReference.save() method from within an event handler function that is registered as a listener for certain types of user events? If so then exactly which user events are valid? (Perhaps there's an event that will never be dispatched by user interaction with my application and I could register an event handler function for that event type and make the save() call from within that function?)
My difficulty is that I can't safely call the FileReference.save() method until my web service returns with the data that will be used as the argument of the FileReference.save() method call, so the event that triggers the FileReference.save() call is actually a ResultEvent rather than a user event, and I'm leery of dispatching a new (faux) user event type in order to be able to trigger the FileReference.save() call unless it's definitely a user event that would never be dispatched as a result of actual user interaction with my application.
In a nutshell what I'm doing now is this: I have a function that is registered as a handler for a button click. In this function I make my web service call to fetch data from the server. I also have a result handler function which gets invoked when the web service call completes, and it's in here that I want to call the FileReference.save() method since it's at this point that I know that the data is ready to be saved to a file. But the aforementioned restriction is blocking me from doing this -- I get an error:
Error #2176: Certain actions, such as those that display a pop-up window, may only be invoked upon user interaction, for example by a mouse click or button press.
I've tried many things to get around this such as creating a second mouse click event handler function with the FileReference.save() call within and calling it after a timeout interval (to give the web service time to complete), but I keep running into the same error -- maybe that approach doesn't work since the second function isn't registered as an event listener for the event type used as its argument.
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Jul 30, 2009
I've been searching this forum and googling for quite some time, and I haven't been able to come up with anything. Anyway, here's a description:I have an array that has multiple instances of the same movie clip. I add them to the stage and then add an eventListener to each one.I have that working fine. The problem is, I'd like to add a filter to them and remove an eventListener once the eventHandler has been activated. However, I have no way to know which instance set off the eventListener. Is there any way I can pass that information into the eventHandler function? Or is there any way I can access the parent from the evenHandler itself? [code]
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Aug 9, 2009
its a simple 6 thumbnail gallery with coded tweens. Once a thumbnail is clicked then its attached larger image is meant to display on the screen, this seems to only work after the first click of a thumbnail once the image appears then is clicked it dissapears, and this function only used to work once but now it only works twice, exept the second time around the larger image cannot be removed from the stage, could it be a swapDepths issue?here is my code, i have only fully coded the first thumbnail top left. find attached my swf for the file,
stop();
import mx.transitions.Tween;
import mx.transitions.easing.*;
[code].....
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Jan 31, 2008
I've written a class that will load multiple SWFs and then call a passed function when complete. My problem is that when all the movies have downloaded the passed function won't fire.
[AS]
// LoadChecker
// this class is passed am array and calls a function when all of the objects in the array are loaded
//
[code]....
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Dec 20, 2011
I am using NetStream to play some .flv files on local disc. My code skeleton is:
public class AdvertisPanel extends MovieClip
{
private var _video:Video;
private var _connection:NetConnection;
[Code].....
I used some .flv files that I download from YouTube to test; and I found that the handler metaDataListener would not be called when playing some .flv files, but some would. Is the problem caused by the video file? Because I may resize the video before play it on the screen, and I really need to know its original width & height.
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Jul 16, 2010
I am writing a flex application that has a MainMovie that loads flex programs (ChildMovie) depending on what the user selects in the MainMovie.
class MainMovie{
private var request:URLRequest = new URLRequest();
public function callPHPfile(param:String, loader:URLLoader,
[code]....
I can see that the callPHPfile function is being executed and received xml data from in httpFox, the problem is that the code in the handlerInChild function is not being executed.
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Apr 11, 2010
I am simply trying to start a timer when a dynamic movieclip ("mySlide") has finished playing. Here's my code:
[Code]...
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Jul 9, 2009
In AS2 we can add additional event handler on same event as below code does.
on (rollOut, dragOut) {
// Statement 1
}
Now , I am workin in AS3 . So, how to add additional event handler on event in AS3
Let's say display Object's instance name is "myBtn"
Here I have include only Mouse Out only, Now I want to add additional event handler
myBtn.addEventListener(MouseEvent.MOUSE_OUT, myBtnEvent);
myBtnEvent(event:MouseEvent):void
{
// Statement 1
}
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Jun 10, 2010
I have an event listener for a custom event type. This custom event overrides the clone method as required.In this event listener I want to dispatch an instance of a different type of event... a different custom event instance altogether. It also overrides the clone method as required.The problem is I'm getting a type coercion error: TypeError: Error #1034: Type Coercion failed: ...I do not know what is trying to do the casting. My code is:
/* elsewhere in a method */
addEventListener(GestureEvent.GESTURE_SCALE, handlePinched);
/* the event handler */
[code].....
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Jul 13, 2009
I am writing a program that needs to go to a random frame after clicking a button. However, the program also needs to start on a random frame. When I call the function at the start of the program it gives me an 1120: Access of undefined property event error. The function is originally written as followed:
function randomMatchedTrial(event:MouseEvent) {
... lots of code that probably doesnt matter, but let me know if it does...
}
the program starts by calling the function as followed:
randomMatchedTrial(event)
Can event handler functions be called outside of the event listeners they are handling?
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Jan 12, 2009
I rune the following code from TestClass:
ActionScript Code:
handler.loadFromFile("test5.txt");
dataset.generateComplete();[code]....
However, why does dataset.generateComplete(); get called before onFileLoaded(event:Event)?I can only assume that this is the case, as var pointList:Array = myHandler.getPointList(); returns Null, and when I run some tests with trace statements,I can see that onFileLoaded (event:Event) is seemingly called after generateComplete() Is the URLLoader process running in parallel to the rest of the application?
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Aug 16, 2010
I have a button labeled 'blueButton' and I'd like to use an anonymous function to handle the click, like so:
blueButton.addEventListener(MouseEvent.CLICK, function(event:MouseEvent):void {
trace( "-----click detected-----" );
// now do other stuff
});
Problem is, the click handler is called multiple times per click. The number of times called seems to be random (sometimes 2, sometimes 4, sometimes 3 etc). could I be missing something in my code, or maybe I set up the button wrong?
also I noticed that it seems to always get called once on the first click. After the first click is when it starts getting called additional times, maybe that has something to do with it?
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Feb 8, 2006
I have the next code:
mc.onPress=function()
{
//some code
}
How do I remove the event handler onPress?
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Aug 5, 2011
I'm adding event handlers to dynamically created movies. The event handler is not active and the cursor does not change to a finger over the clip Here is the applicable code.
Code:
function loadSubNav():void{
//Load Thumbnails
[code].....
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Apr 2, 2009
I would like to use System.showSettings(0) up front and trapwhen the user chooses Deny instead of Allow in an onStatus eventhandler as I show in attached code.
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Jan 20, 2010
I want to extend my function to a better design to where I can pass a canvas object into so I don't have to write N functions.. I'm not sure as how to do this properly I've come up with a naive design with a switch but even then if I add another canvas I still need to write new code for the new canvas.
function fadeCanvasOut(event:TimerEvent):void
{
canvas1.alpha -= 0.1;
[code].....
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Aug 7, 2011
We (AS3 coders) all know that one of the great things about the AS3 event model is that handlers are scoped to their containing objects. I'm writing an EventDispatcher for JavaScript, and trying to achieve the same effect.My question could be answered in a couple different ways:A: How does ActionScript 3 set scope within an event handler to the handler's container object, rather than to the event handler's caller (the IEventDispatcher on whom dispatchEvent() was invoked)?
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Jan 16, 2012
I'm loading some images from a database using a PHP script through CodeIgniter, but when I try to add an event handler to do some stuff with these images, Flex compiler is showing me an error:1180: Call to a possibly undefined method cloneCar.Why I can not add an event handler in this context?
<mx:Accordion>
<mx:Form id="menu5" label="Prueba" width="100%" height="100%" backgroundColor="#707070" icon="{roadIcon}">
[code].....
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Jul 17, 2009
I'm using a progress bar component in a movie clip and this progress bar works loading an external movie clip. However, once the external clip is loaded, it seems the "complete" event is not registering with the object listener. This is what I have:
ActionScript Code:
this.createEmptyMovieClip("FOB", _root.getNextHighestDepth());
var progressBarListener:Object = new Object();[code].......
The code a little more complicated than this in that there is an array that stores some information and a setInterval command that calls the loadContent function loading each external movie clip. I can past the entire code if necessary.Also the progress bar component is set up as thus: in the main movie (root) there is a movie clip called progressBar. Within progressBar the component resides with a variant name of PB.For some reason, when the external clip is finished loaded, the progressBarListener doesn't seem to be called.
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Aug 8, 2009
I'm trying to find a way that I can control how a flash movie handles the click event from the HTML page outside the movie.
I run a website where we have advertising space for Flash Ads provided by our customers which, when clicked, open their own website in a new browser window (i.e. target='_blank') - however this causes us a few issues:
1.) We want to track the success of their ads, so we give them a custom URL that their ad should link to instead of linking directly to their site. This URL logs the click before redirecting the browser to the customer's website.
2.) Often the flash files we get use GetUrl() which seams to trigger the popup blockers in IE 7 & 8.
These two points mean we have to provide them with the custom URL for them to include in their flash ad, and/or tell them how to set up the movie to handle the clicks in a way that doesn't trigger the IE popup blocker, and this doesn't make it as seamless as it should be to place an ad on our site.
So, what I'm trying to do is find a way that I can reference the Flash movie object with JavaScript (or similar), and set the click event to open up a specified URL - so if the customer's flash movie doesn't have the right URL set in it, or is triggering IE's popup blocker it doesn't matter because when we display it, we can modify the event handler to use the correct URL and to open up their website without tripping any popup blockers.
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Nov 2, 2009
I'm editing an xml gallery.you can see how it works now here (thumbnails are different than images, cause it's just for the sake of testing now)[code]...
oki. this all works via for each loop which creates thumbnails dynamically. the event handler for the click on the thumbnail is inside the - also dynamically created via this for each loop - button over each thumbnail. more or less like this[code]...
and now: i'd like to add "next" and "back" buttons,so that the user doesn't always have to click the closing cross and go back to the thumbnails, but that he can also -once he selected an image - simply loop through the gallery image by image.
oki. so first i tried to get the name of the button clicked previously and store it in a variable, a thus this would tell which image should be loaded via loader (say, name instance56 means Image00002 was loaded, so if now user clicks next, Image00003 should follow) . but i'm simplytoo simple to get the variable out of the event handler and for each loop scope. i also tried to do it inside the event handler,but then it gets terrbily messy, and i can never force loader to load the right image.
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Nov 19, 2009
I have one event handler for several object's events. I would like to pass a value through to the function from the event listener:
ActionScript Code:
function chkEmpty(event:Event){
if(event.currentTarget.text==""){
[Code]....
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Jan 9, 2010
So I am trying to essentially have one class dispatch an event into the flow when it is added to the stage, and have another class catch the event, but I'm having problems. I set up a little test to simplify/display the problem I'm having. There are 2 classes, and then just some init code on the timeline.
ActionScript Code:
//code for box 1
package {
[code].....
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Jan 10, 2010
Is there a way to get the handler(s) function(s) of an event listener?
I'm trying to find a way to remove them without knowing what they are.
For example:
ActionScript Code:
if (mc.hasEventListener(MouseEvent.CLICK)){
// this object has a MouseEvent.CLICK listener
mc.removeEventListener(MouseEvent.CLICK, null );
}
Instead of null, I was hoping to find some function that retrieves the handler function.
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Nov 11, 2010
I have classes that need to communicate with each other, but are instantiated at different times.Therefore I feel I need to create a universal Event Handler that my classes can add event listeners to,and can receive dispatched events from.
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Oct 19, 2005
Does anyone know if there is a way to get the name of the function that my code is running inside?
Code:
_btn.onPress = function () {
trace(something);
}
this would then output "onPress" or something like it...
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Mar 1, 2006
I'm creating a button to play an movie clip using onClipEvent() but I couldn't get it works. It contains a button (text) and a cube (movie clip). On that movie clip I have a button.I want the animation of movie clip play while my mouse is rollOver on my text. Does anyone know how to make that works??[code]
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Sep 9, 2006
In a kiosk application (with NO mouse action) I try to mimic the action of buttons...with movie clips.I was wondering if that would be possible to create new event handler for MC?So that, by script, I could tell something like:
my_mc.selected = true
my_mc.focused = true
then have an event handler function like:
[code].....
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