what is the current "state of art" to render a webpage in firefox into an image file (saved on disk). I want to implement something like "browsershots.org"
1.) Does firefox provide some API to interact with it?
2.) Does the new Canvas (HTML5) Element help here?
The programming language does not matter.
If you know any more information about this topic or a concrete solution, please help.
Uupdate: Yes, the Idea is to do this programatically, only using Technologies "within" Firefox. Further Ideal requirements: Multithreaded (allow rendering of several Websites in parallel on one machine)
Thanks very much, Markus
update: Yes, the Idea is to do this
programatically, only using
Technologies "within" Firefox.
See: https://developer.mozilla.org/en/Drawing_Graphics_with_Canvas#Rendering_Web_Content_Into_A_Canvas
Mozilla's canvas is extended with the
drawWindow() method. This method draws
a snapshot of the contents of a DOM
window into the canvas.
Sounds good, but note that:
This feature is only available for
code running with Chrome privileges.
It is not allowed in normal HTML
pages. Read why.
Why reinvent the wheel?
Fireshot does exactly that: https://addons.mozilla.org/en-US/firefox/addon/fireshot/
Even if you want to implement that yourself, looking at that add-on might help.
Selenium RC is a good choice.
It allows you to control Firefox (and other browsers) using Java (for instance).
For example:
http://seleniumexamples.com/blog/examples/capturing-screenshots-from-remote-selenium-rc/
Related
Without thinking, I created an entire program in Java and began designing a website to use this applet. All it does is create image in a certain way but there is a bit more code (classifications and default values/images) that I just felt was easiest to do with Java. Now I have a Java app and HTML CSS and JavaScript that I can't seem to do much with.
I have thought of 2 ideas (below) but I don't know what the general alternative is to applets nowadays.
I have a spare PC I may use and just alter my applet to run the back-end of a server-based site instead, but I am hesitant to use my own IP and bandwidth for something like this. Also, this app doesn't even need access to the internet so this just seems like way overkill.
I could just release the .jar, but I plan on expanding the available options. I also told people that this website was coming. I'd like to be able to just update the website.
I don't really plan on writing my program in another language. This took me time to make. If there is no way to work Java into my site, I may just abandon the project altogether.
I am mainly concerned with Chrome for this problem.
Edit: I would like to use GitHub as my host, just in case this helps at all.
You can run anything you want on the server, including java programs. So
you could run the image creation program in the server and present the
resulting image using a standard img tag.
Is it possible to capture the screen or generate a hardcopy in GWT programatically?
using AWT its possible but the AWT can't be used in GWT[only GWT not any other like smartGWT, ext-GWT]?
On client side GWT do nothing more than Javascript. So your question is: Can I take screen shot in JavaScript? The answer is:
If you want only take screen shot inside browser and can bear different you can use html2canvas.
If you want also take screen shot out of browser, you have to use other technology such as ActiveX control (may be Java Applet with AWT).
Check this: Take a screenshot of a webpage with JavaScript?
I don't believe that you will find anything native in GWT to do this. I believe that the best that you could manage would be something like this:
http://html2canvas.hertzen.com/
GWT just compiles java into javascript as it as been said by other guys in their answer. So you can look for a solution on the client but you can also do it on the server side.
One way to make it is to use phantomJS (which is a kind of webkit on the server) to rasterize the web page into an image on the server side. Could be really usefull to create features like "Export" etc
Phantom JS scree n capture
I am using HtmlUnit to scrap date from a site but after login all the data is displayed using adobe flash player as swf object, I don't know any way to scrap data from such page.
Is there any way to extract data from flash page, If yes please help me out, either using HtmlUnit or any other java tool.
thanks.
There is no way that you can interact with Flash applet using HtmlUnit. You can try with selenium; I never used it, but it looks like there are plugins that enable flash communication like flash selenium
Personally, I think the only way to test user interfaces, when they have such pitfalls, is to hire a tester human being (a good one), and teach the developers to deeply test the gui every time they alter it.
Seems am not too late, there i answered to my question. what all you need to do is
Create your own browser instant
Inject "stockwave flash" plugin
Instantiate htmlunit with new browser instance.
Hope it will help you.
I need to display any web page as a browser field,not browser session.I am building the app in 4.7 OS.Can anyone help me with sample code?
On 4.7 you are stuck with the old browser field. Also known as Browser Field 1. It renders HTML pretty close to how it was on 4.5 devices. There is no way to take advantage of the newer browser that you invoke via browser session. So, you can forget about CSS2 or or JavaScript on the pages you want to render as a browser field. But for the fairly basic stuff it is good enough.
For the sample code - you really should check out and understand all the examples there are in the development package before starting writing the code. It will really save more time than take for learning. Look at components\samples\com\rim\samples\device\blackberry\browser\BrowserFieldDemo.java
I doubt that the problem lies with the browser field per se. Rather with communications.
The people in the post that you refer to were probably suggesting ";deviceside=true" as this gets around the "BES effect" in a simulator.
You may wish to experiment with running the MDS emulator alongside the simulator session as well. There are a number of posts that discuss the impact of deviceside and simulation. You can test in code to see if you are running a simulator so that you can programmatically influence the "BES effect".
We need a tool to test a set of fairly complex Java applications. The applications are mostly independent client programs or applets communicating with a servlet or apache server at a remote site. Specs:
Runnable on Windows XP, Vista and 7
Parameterizable (Can specify in a script the sequence of buttons to click, text to type in JTextFields and browser address bar etc.)
Can quit or bail out or display a nasty message if the expected window or dialog box doesn't appear
Record the output on the Java Console of browser in a .txt file (IE is sufficient for now) when the application opens a browser window.
While running, I should be able to see it running with folded hands while it would run
for a few minutes
We were thinking of writing an AWTRobot based tool that reads a command file and does this - (don't know how to do #3 or #4 yet - will ask you folks some day how to detect a window on the desktop). Would you suggest an open source tool available to do this? We don't need anything fancy to capture video or screenshots. Thank you, - M.S.
For browser based automated testing you can use Selenuim or you can use WebDriver.
The selenium project is hosted here
If you don't need to test the way the pages are actually rendered by the browser, but instead need to work at the HTTP/HTTPS/etc request level then have a look at JMeter. It has parametrization, dataproviders, graphs, and a proxy component for recording http user sessions.
If you do need browser testing, then, as has already been mentioned, Selenium is probably the best freely available tool. For production I would recommend using Selenium Remote Control server which can be driven by scripts written in Java/Python/C#/Perl/PHP.
To see what tools people use in real production environments, and to do your own research on what is available I recommend www.sqaforums.com.
Have a look at Sikuli
The reason I suggest this is it sounds like you need to test both a Java applet and the content of a native browser (launched from Java, but not itself Java) -- so it's not "Java all the way".
I'm not sure what you mean by criteria 4, though. It is worth noting that as Sukuli works by image analysis, it won't be able to copy text to a text file.
This question is an invitation for sales pitch, don't you think. How about Mercury Quicktest professional ( I believe its HP Quick test now). I do not believe this will be cheap either ( and well its HP, it will probably only work in IE ;)).
Since you want an open source solution, I believe, the most popular option is selenium and yes its a pain to configure sometimes ( like for Flex for example). So you should try Watir.
There is a lot of good buzz around it and when I evaluated it, I loved what I see.Also it does not work for desktop applications, I suggest you try some other solution for that.
(The problem is open source GUI testing tools are not usually all inclusive. If you need one solution to handle all your gui testing needs, then you should check out the more commercial ones like QTP.
I have used IBM Rational Functional Tester. It has everything you need and it's quite easy to learn. The scripting language is either Java or VB.Net so you won't have to worry about learning a language for your tests.
I had some pretty good results with Squish from FrogLogic and didn't break the bank: http://www.froglogic.com/products/
Did you try Squsih - http://www.froglogic.com/products/index.php