I plan to build a Chrome Extension that allows users to navigate web pages via voice commands.
To do so, I plan to put my speech recognition program on a backend server that connects with clients via Chrome extension.
Is it possible? I know how to develop an extension, but would appreciate if you could show a way of receiving voice input.
You don't need to modify Chrome.
Until the HTML5 tag gets landed in Chrome, your only option right now is to use NPAPI and include the plugin into your Extension. For more information visit this page:
http://code.google.com/chrome/extensions/npapi.html
You would have to implement a JavaScript audio input API using C++ inside Chromium, being aware that you have to transfer data through the sandbox, then once exported you can use the new API in your extension.
A lot of groundwork has already been done on specifying the audio API, read the details over at W3C:
http://chromium.googlecode.com/svn/trunk/samples/audio/specification/specification.html
Which links to details of a special build of Chrome with some already built samples:
http://chromium.googlecode.com/svn/trunk/samples/audio/index.html
Related
A extension that takes a photo and make it into webcam stream. So if i have website requesting access to webcam then this would show up as possible webcam to share with.
I know javascript and a bit of chrome extension api. But i don't know how to go about this.
There is no Chrome extension API that will allow you to create a webcam that will show up in other applications.
I'm diving into the world of Chrome Extension development, primarily because there is a very small feature that is missing in Chrome that I miss dearly. The context-menu option to "Set as background/wallpaper" like that found in Firefox. Sounds trivial, but it's convenient.
I have most of the "basic" stuff worked out with the manifest file, am able to install it, even managed to get it to show up as a context menu item.
The problem obviously is that I am wanting to mess with a user's OS-level settings which is extremely difficult because of security issues (fully understand this).
I found an extension that allowed this in older versions of Chrome, and it looked like the developer used some type of .dll and C++ to accomplish this.
I'm not really sure how to make this work.
Since that Chrome doesn't allow these kind of manipulations (such as your PC's settings), you will need to create a native application that will run beside your extension. When the user chooses the image from your extension and selects "use as wallpaper", you will use the native messaging API to send a message to your desktop application, that will set the wallpaper (and do whatever else you can't do within a chrome extension) for you.
You can use the chrome.wallpaper app api to set the wallpaper after using the messaging api to send the image from your extension.
I would like to add the ability to cast my chrome packaged app to a google chromecast device.
So far google states that all you have to do is add
to your page and the API will inject itself.
For me that doesn't happen. No code is injected.
Am I doing something wrong?
There doesn't seem to be a demo showing this type of capability.
EDIT:
I just wanted to clarify a bit. All that I would like to do is display my app to a screen.
I have no media. I simply want to display it exactly as the chrome extension in the chrome browser would.Therefore I would follow the directions for a sender only. The app is packaged so it is running only CSS/JS/HTML5 code. The app is designed to run offline.
Steps I've taken to cast:
1. I've added the extra bit to the HTML line:
2. I've followed the whitelisting, to the best of my understanding, by adding my "website address" to the chrome extension. So I've added the only two address that should matter.
127.0.0.1
192.168.1.106
There is a good chance Content Security Policy is blocking the implementation of the cast API being injected. I see that you've filed Issue 287254: Google cast (chromecast) ability for packaged apps, and suspect we will need to wait for it to be implemented in a packaged apps compliant way.
You must whitelist your device and your Chrome app. See here for more details:
https://developers.google.com/cast/whitelisting#whitelist-chrome
I have a chrome packaged app that I update form time to time - when I'm creating an update I want to send email to subscribed customers with a link the that extension -that will launch it.
Anyone knows if there is a chrome url scheme i can use?
Currently this is not possible, but there is an API proposal and an implementation being developed for a chrome-app://appid URL schema that would do pretty much what you describe.
Follow the status here
I also want to be able to do this. It seems that one possible solution is to install both an extension and a packaged app, and have the extension register a context menu that then communicates with the app, or something similar.
I try to write an extension and i saw the very restricted policy security.
I should create an extension that allows me to listen and download podcast from web. It is possible?
I use Chrome OS with VMWare, this OS has additional Api than Google Chrome Browser?
Thanks
Yes it is possible to have a content scripts that executes on every page looking for specific media content. The content page could send a request back to the extension to indicate it has found a media file and using the URL you could play it in an tag inside the extension.