Flash :: Javascript - How Does A Browser Interact With A Player Or A Java Applet
Nov 9, 2010
I've been trying to understand how flash animations or a Java Applet work within a browser. I can think of a couple of ways - The Flash Player/Java Applet are machine code that's dynamically linked it, and given some parameters about the area of the screen that belongs to them; after that, they run within the same process space. The browser exposes an API that the player/applet use to talk to it and they live in a separate process. (Presumably they talk via sockets?) The API could correspond to openGL/X11/some custom calls.
These possibilities still don't explain things like how a button click can make the player full-screen, how it can play music, how it can inspect the DOM, etc. For that matter, is the video displayed by decoding to a sequence of images, and rendering them one at a time, or is there a more efficient way, e.g., of pushing the deltas in the image? The Wikipedia page on Java Applets
(1) talks about how the applet is run in a sandbox (presumably a separate process), but it doesn't say how the browser and the applet communicate. Perhaps the answer depends on the underlying platform?
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Mar 21, 2011
I'm going to do a voice recording plugin/addon on a website that will record audio and send it to the server for further processing. I have had two suggestions; either write a java applet or use flash. The service is supposed to work for all major browsers(IE, Firefox, chrome,..). I'm new to this area of development and is looking for tips on how to proceed with this. What is the pro's and con's for each solution?
For java applet, what Java speech API library do you recommend? I want a simple, small library, I only need voice input. Also, I am puzzled by Flash development, I can't find any good information about development, the adobe website dosn't make much sense. What is the programming language for flash, and how do you actually run it in html code? I have found ActionScript 3, is that used to create Flash plugins and can it perform voice recording?
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Jun 3, 2011
If one doesn't have the source code, the only to test is to send keystroke and mouse move so I found this product but it's not free and opensource price is not even known :([URL] Squish supports automating interactions and testing non-HTML/DOM elements, that is, native objects, which are embedded in a web page. This is done at a fairly abstract level, which means that mouse and text input can be recorded and replayed.
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Nov 5, 2009
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Dec 16, 2010
This is the code i wrote in J2SE with Native java wrapper for Gstreamer. But alas it does not work in Web Browser, i am very upset what i can do now, i have no alternative to end this project. IS it impossible to use audio/video with Java Applet for Gstreamer or To build a CD/DVD quality audio ? (this is not targeted for world wide web, only web browsers between peer to peer or peer to 10 peer). ex: working sample as j2SE but same code does not ever work with java applet from browser.
[Code]...
Note: Follow up: In any web browser this native way works, when you have java. So JAVA applet works in any browser. Those who are like me, faced this problem, do not get confused.
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Mar 29, 2004
Is there anyway to remove a section of HTML with a javascript? Ive seen ones that replace text segments, and remove certain tags like <br>. I want it to remove the flash applet once its done playing. I know that its possible, I just need someone that knows javascript better than me.
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Dec 15, 2011
I need to play WAV, MP3, MP4 and SWF files using Flash Player plug-in in Internet Explorer, FireFox, Chrome and Safari. Please give some suggestions on this.Is there any way to play this formats using JavaScript and HTML??I tried with and tag also but, Chrome, Firefox and Safari is required Quick Time Player to play this formats. I need to use only Flash Player.
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Mar 9, 2010
I listen to internet radio at [URL] and it works pretty well, except for one minor issue. The Flash applet that runs the radio player has a timer on it, where if you don't move the mouse over the player every once in a while, it decides you're idle and shuts off the stream, even if you're not actually idle, but just working on something else with the radio player running in the background.
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Apr 17, 2010
I am working on a small project that I need the ability to let users upload a video to my website or use a webcam to record a video and then upload it. I have seen this done on several sites (youtube,facebook etc) so I know that there is a java or flash applet that supports this. However I have not been able to find one. Any good flash or java based video uploader with these features?
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Jan 19, 2009
I am an amateur game developer working on a class project. I have created a game in Flash AS3 that needs to send variables to a Java Applet residing on the same HTML page. (The Java Applet is a separate interactive audio engine that I am constructing for my thesis work.) Both Flash game and Java Applet work fine on their own. The solution needs to run in a web browser,have not found a solution that encapsulates the usual three languages (ActionScript 3 > JavaScript > Java Applet) within a single tutorial, snippet of working code, or forum thread. I have tried piecing together countless combinations of AS3 > JavaScript and JavaScript > Java solutions, but have not yet found a successful combination. I have found an instance of AS2 > Java communication working, but aspects of the JavaScript source were not available for me to piece it together. I am not a JavaScript guru by any means, and have just recently begun learning AS3 and Java
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Sep 30, 2010
i have created a silverlight application , but i need to embed it to a Flash file(swf) which it runs with Flash Player ( whithout using browser), I had found a solutions to call it using javascript, but it still needs my flash file run inside the browser, dose any one can help me, Either to run js inside swf (without need of browser) or any other way that i can embed my Silverlight application inside Flash.
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Sep 30, 2010
I know Flash can work with my webcam. Is it possible for a Flash object in the browser to get a document scanned by a hardware scanner?
Will it be different if this will be an Adobe Air application?
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Nov 13, 2011
I need to load somehow the html code of a webpage A into a javascript string of another webpage B, on a different host. I know this is impossible to do with javascript alone because of the same origin policy, and I know I could do it loading the page via php on my server and then send results back to the user's client but I wouldn't be able to handle so many requests, so I need it to be done directly by the user's browser. I can use nearly whatever browser scripting language/applet framework common enough to be installed on the majority of my users' computers, like flash and java.On example, what if I use flash or java to load the external html code and then call a javascript callback function providing the source? Could this work?
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Aug 3, 2011
I want to play/stop Pandora's web radio tuner, which is flash-based, via Javascript. How do I programmatically interact with it's online flash player?
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Feb 5, 2011
I'm playing a flash game on facebook. I know I can decompile it to find out all the commands and would like to make scripts to automate the game by calling procedures in the actionscript of the game. So I guess I would like to make a plugin also that would insert this console into any flash app and this would be handy for a lot of things. Then if anyone wants to hack a new game, u just decompile it and make a handbook of methods for people to make scripts with. So how would I go about making this console? I don't know if I could make a swf interact with the game or if it has to be compiled into the game's swf. Or if it is easier with javascript, that is cool too. maybe we can make a javascript library just for this. anyone can tell me more?
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Apr 3, 2012
There may be more than one answer to this, but I'd like to know if there's some technology out there that exists to handle Audio Processing / Playback in realtime, so that Flash can:
Interface with the technology / plugin to generate sounds with no delay or lag. Apply DSP effects (Reverb, Delay, Dynamic Range Compression / Expansion, Distortion, etc). Manipulate DSP parameters in realtime (sweeping an EQ filter's band or Q).
The most important thing of all, would be for this technology to be available to most users, as it would likely be used for Gaming environments or online Audio production, even. So far, Flash has a few ways to manipulate Audio Data, such as the SampleDataEvent, Andre Michelle's Popforge library, chiptune libraries like SiON, and possibly some other unheard of libraries.
I'm not really convinced though, that these methods are the optimal ways to create interactive sounds - sounds that change depending on game conditions, sounds that closely responds to the users actions. Nothing (that I've seen so far) easily allows developers to create or communicate with a DSP effect in order to manipulate the sound in this way, in realtime.
I know that Flash has the ability to communicate over sockets / ports, so perhaps there is an existing library that can communicate with an external plugin, and can be easily distributed to users at the same time.
Is there such an audio solution out there?
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Oct 29, 2010
Is there any way to disable the "Download This Video" button from RealPlayer. It seems that when users have RealPlayer installed on their machines, it automatically adds a "Download This Video" button to any SWF that loads an FLV.
Edit: My intention isn't to prevent someone from downloading the SWF or FLV, I would just like to remove the ugly button that RealPlayer adds on top of my Flash content.
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Oct 20, 2009
I'm just learning about Flex and I'm loving it. Unfortunatly I still have to make the decision on which RIA technology to use and its dependent on, among other things, from the following case: How can we wrap a java applet around a Flex application? More specifically, I would like to wrap/integrate NASA's World Wind applet in a Flex panel, similar to what Adrew Trice did with the Google Earth API.
An alternative would be id Flex would support direct access to the 3D hardware through OpenGL or DirectX. But I do not think that that is the case yet, not even through AIR.
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Feb 6, 2012
I'm working on a web application which displays a 3D model (Acrobat 3D PDF file) and allows users to interact with the model. I need to be able to communicate with PDF from the web page:
1) Programmatically highlight a node in the 3D PDF (given the node name) when, say, the user clicks on a list item referencing that node name in the web page
2) The reverse way, know which node the user selected in the 3D PDF so I can highlight that node name in the web page.
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a) The UI of my page is Flex. Is it possible to do this interaction directly from Flex?
b) If not, is it possible to do this from browser javascript? (which I will in turn call from Flex) I have seen an article on browser-pdf communication [URL] but am not sure if 3D objects can be accessed from external browser javascript.
c) Or does the Acrobat Reader ActiveX control expose methods to perform these operations from browser javascript?
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Feb 17, 2012
I'm triyng to use the Facebook AS3 API but it's actually inconsistent. Frustrating.I'm thinking to use the Javascript SDK, from an Flash/AS3 based app, using the ExternalInterface object, and the addCallback method...
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Aug 5, 2011
I'm wondering if its possible to do what I'm thinking, and if it is possible, does anyone know of a flash object that does what I need? I know a Flash object can provide a javascript API to interact with it, what I dont know is can Flash send an email directly without the need to talk to the webserver to do so? If thats possible would it not be possible to write a flash object that did nothing but provide an API to send emails? Has such a thing been created that is out there for others to use?
I'm looking to create a email form on a web page but the site is static (no server scripting). In my situation server scripting is not possible as there is no server, the site is 100% client side on a CD/DVD/USB Stick.
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Oct 24, 2009
I am looking for a flash mp3 player that will work within the Opera-based browser on the Wii. The player needs to be javascript enabled (support methods like play, stop etc.) The mp3 tracklist will be built dynamically using ajax on the same page as the player so it must trigger an event when a track finishes playing (or at least provide functionality of some kind to indicate that it's time to start the next track). Does anyone know of such a player?
[Code]...
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Mar 22, 2010
I want to create a plugin like Flash. What programming language do I need??
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Nov 11, 2009
We're designing an application and the client has requested that a portion of their app stay in Java Web Start and another portion be in a browser. I'm thinking about AIR as an alternative to the browser because that may give us more features b/c we don't have to stay in the browser security sandbox.How would I go about having an Air app talk to a Java Web Start app? Do they have to talk through a server? I guess potentially you can just create a socket connection between the two.
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Nov 7, 2010
To clarify when I ask about browser to browser communication I mean without a server in between forwarding message. I would like to implement something like this for a game. If p2p in websockets isn't possible are there similar alternatives?
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Dec 21, 2010
I have a bunch of flv video files stored on a media server, and I am trying to get them to launch in the flash player. I have downloaded the flv file into temporary storage, and try passing it using an intent. This is what my code looks like (from what I have seen on the net):
try {
URL urlLink = new URL("[URL]");
// Serve the file
InputStream in = urlLink.openStream();
FileOutputStream fos = new FileOutputStream("/sdcard/tempFlash.flv");
byte[] buf = new byte[4 * 1024]; // 4K buffer
[Code] .....
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Aug 9, 2011
How can I embed a adobe flash player inside a java based desktop application? Can I be able to load and run an on-line flash game in it?
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Dec 15, 2010
I am working on optimizing a page that has Flash on it. I am using optimization practices like moving Javascript to the bottom to not block. Removing inline scripts. And minimizing HTTP requests with minified css and js.The majority of the pages content is in the flash, so loading it as soon as possible is the goal. Currently there is a 2 ~ 3 second delay before the flash is even rendered (using firebug profiling)
I am wondering at what point in the page load does the browser start initializing flash on the page? Is it once the DOM element containing the flash has been rendered? Is it once the complete onload event has been fired? I imagine it probably differs with each browsers as well.
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Oct 30, 2010
I'm using an embed flash player in a web page and I want to scale it to browser window.hen I put "height: 100%" in the flash parameters, I get a blank page.This is the code of the page :
SlideShowPro({
target: "slideshow",
xmlFilePath: "galeries/images.php?album=1",
[code].....
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Apr 2, 2012
I have a website with a simple Flash animation behind some text and semi-transparent images as a background. I have used swfobject to embed it and set wmode opaque to make it display correctly in most browsers.For browsers without Flash, the user gets a static background image instead and would not know they were missing anything. However, Android users get the flash background on top of everything as per the known issue with how Flash content is rendered in the Android browser making the site unusable.
I have added a crude browser sniff javascript function to the swfobject code to prevent it from loading for any user agent whith 'Mobile' in it:
<script type="text/javascript">
if (navigator.userAgent.indexOf('Mobile') == -1)
{[code].....
The only problem I have left is for Android users browsing with 'Mobile View' turned off as the user agent pretends to be a desktop version of Safari (I think). I do not wish to disable the Flash animation for all Safari users. Is there a way of blocking it for just Andriod users - even if they have 'Mobile View' disabled?
Possible ideas include:detecting the Flash version with JavaScript or Flash. Does Android use specific versions (version numbers) of Flash which are different from the desktop equivalent? blocking the specific user agents used by Android devices with 'Mobile View' disabled.
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