How can we print out what an webview contains? i tried something like :
view.page().currentFrame().toPlainText()
but it didn't work
PS: my webview contains an evaluation of a javascript function , so i suppose toHtml() won't do the job any suggestion?
QtWebKit will display javascript-generated webpages exactly the same as it will display any other webpage (though you can disable js through QWebSettings). I assume then, that you want the webpage to generate elements based on requests from the C++ application.
If that's the case, you want QWebFrame::evaluateJavaScript (as previously stated in this previous question: Qt4: How to call JavaScript functions in a page from C++ via QtWebkit?).
More generally, you might find this useful.
Related
There are multiple questions on SO already addressing similar issues but none answers my exact type of question. Most of the answers involves running a JS snippet and overloading the alert method as such: window.alert = function() {};
The problem I am having is that the webpage loaded (which I have no control over the content) opens an alert before the rendering of the whole page completes.
Because of this I cannot use the: - (void)webViewDidFinishLoad:(UIWebView *)webView delegate method to run the JS snippet. In addition running the same snippet in - (void)webViewDidStartLoad:(UIWebView *)webView won't do me any good since it executes before the DOM is loaded.
Similar questions:
Capture (and prevent) alert() modal in UIWebView
Can I handle alert inside UIWebViewDelegate?
UIWebView: Can I disable the javascript alert() inside any web page?
Any pointers on this?
After experimenting a bit with the suggested solutions regarding injecting a Javascript I fell back on the native platform.
Since a UIWebView translates all Javascript alerts into native UIAlertViews it is fairly simple to block it on the native end. Looking into UIAlertView.h there is only one public method for showing an alert which is conveniently called: - (void)show;.
This method can easily be either overridden in a subclass or through a category. I ended up using a category since the documentation mentions a warning for subclassing UIAlertView.
#interface UIAlertView (Blocker)
#end
#import "UIAlertView+Blocker.h"
#implementation UIAlertView (Blocker)
- (void)show {
return;
}
#end
Importing this category in the view controller that holds the UIWebView will block all instances of UIAlertView and in turn also all JS alerts.
I find this solution more robust since it does not rely on injecting Javascripts, changing HTML or using a third party library. It is also unrelated to timing (the JS-alert code can be in the header, body or in some third party lib).
It seems that the result may vary based on the rendering engine, there are a few ways, what seemed to work for me what this:
alert("something");
alert = function(){};
alert("awesome");
http://jsfiddle.net/g5S5M/
I know that the V8 engine that chrome uses is not the same as the one that firefox or IE use, so when making complex web applications one has to really start thinking because not all browsers interpred javascript the sameway.
One thing that you might want to look at is third party libraries that override this function, as in if you tell alert to be blank and right after another script tells it not to be blank, so ether remove that library, change the execution order or modify that library.
I'm working on a project where we'd like to load external content onto a customers site. The main requirements are that we'd like the customer to have as simple of an include as possible (like a one-line link similar to Doubleclick) and would preferably not have to be involved in any server-side language. The two proposed ways of doing this were an iframe or loading a javascript file that document.write's out the content.
We looked more at the latter since it seemed to produce more reliable legibility and simplicity for the end user - a single line of Javascript. We have been hit with the reality that this will be indexed unpredictably by Google. I have read most of the posts on this topic regarding javascript and indexing (for example http://www.seroundtable.com/google-ajax-execute-15169.html, https://twitter.com/mattcutts/status/131425949597179904). Currenlty we have (for example):
<html>
<body>
<div class='main-container'>
<script src='http://www.other.com/page.js'></script>
</div>
</body>
</html>
and
// at http://www.other.com/page.js
document.write('blue fish and green grass');
but it looks like google indexes this type of content only sometimes based upon 'Fetch As Google' used in Google's webmaster tools. Since it does sometimes work, I know it's possible for this indexing to be ok. More specifically, if we isolate our content to something like the above and remove extraneous content, it will index it each time (as opposed to the EXACT SAME Javascript in a regular customer html page). If we have our content in a customer's html file it doesn't seem to get indexed.
What would be a better option to ensure that Google has indexed the content (remote isn't any better)? Ideas I have tried / come across would be to load a remote file in for example PHP, something like:
echo file_get_contents('http://www.other.com/page');
This is obviously blocking but possibly not a deal-breaker.
Given the above requirements, would there be any other solution?
thx
This is a common problem and I've created a JS plugin that you can use to solve this.
Url: https://github.com/kubrickology/Logical-escaped_fragment
Make sure to use the: __init() function instead of standard DOM ready functions and you know for sure that Google is able to index.
So, I'm running these Selenium IDE tests against a site I'm working on. Everything about the tests themselves is running fine, except I would like to do a bit of clean-up once I'm done. In my MVC3 Razor based site, I have a JavaScript file with a function that gets a JsonResult from a Controller of mine. That Controller handles the database clean-up that Selenium IDE otherwise couldn't handle.
However, I'm having a hard time finding any sort of documentation on how to do this. I know I can do JavaScript{ myJavascriptGoesHere } as one of the Values for a line in the test, but I can't seem to find a way to tell it to go find my clean-up function.
Is it even possible for Selenium IDE to do this sort of thing?
If it comes down to it, I can just make a separate View to handle the clean-up, but I'd really like to avoid that if possible.
Thanks!
If you want to execute your own JavaScript function that exists in your test page from Selenium IDE, you need to make sure you access it via the window object. If you look at the reference for storeEval for instance, it says:
Note that, by default, the snippet will run in the context of the
"selenium" object itself, so this will refer to the Selenium object.
Use window to refer to the window of your application, e.g.
window.document.getElementById('foo')
So if you have your own function e.g. myFunc(). You need to refer to it as window.myFunc().
This can be very handy for exercising client-side validation without actually submitting the form, e.g. if you want to test a variety of invalid and valid form field values.
If you use runScript, that should already run in the window's context.
This works for me.
IJavaScriptExecutor js = driver as IJavaScriptExecutor;
string title = (string)js.ExecuteScript("myJavascriptGoesHere");
Make sure your javascript works first before using it here!
Actually to access your page javascript space, you need to get the real window of your page : this.browserbot.getUserWindow()
See this statement to get the jQuery entry point in your page (if it has jQuery of course ^^ )
https://stackoverflow.com/a/54887281/2143734
I am developing a site using Asp.net MVC 3 with Razor.
In the _Layout.cshtml (the master page) I want to put a logic based on whether or not the browser enables javascript.
What is the simplest way to make this logic?
For the sake of simplicity, let the master page just output as follows:
#if(....)//need to modify
{ <p>javascript enabled...</p>}
else {<p>javascript disabled...</p>}
If you want to block the access of your application you can use something like this
<noscript>
<meta http-equiv="refresh" content="0;url=../Controller/Error" />
</noscript>
There's no way to find this out on the server, therefore there's no way to find out before the first page is loaded. The best you can do is to put a bit of Javascript into the page that sets a cookie or posts an AJAX response to the server telling it that Javascript is active, so you can do something about it on subsequent page requests. Even apart from the obvious problem of the first page load, it's a bad strategy since the user may switch off Javascript in the meantime while your server still thinks it's active.
Graceful degradation/progressive enhancement are the keywords here. Make your page assume by default that no Javascript is active and act accordingly, i.e. serve plain HTML in either case. Include Javascript that will "upgrade" the site's functionality if Javascript is active. Let the client figure out if Javascript is working or not and give it the means to work in either case.
I'm afraid there's no good solution. Almost all of the solutions out there somehow involve running a script to do the check and it doesn't feel right (at least to me). The best solution I can suggest is use the <noscript /> tag and redirect to a different page that does not depend on javascript.
Here is one trick...
Assume the user has JavaScript blocked (off). We put this code into the index.aspx:
<script>
document.location.href = "index.aspx?js=1";
</script>
If you get the js=1, you know that user has JS enabled.
So you can generate the code in according the user has / hasn't JS.
The other way is to generate contents witho some special class, e.g. <div class="noscript">, and then you run the script (jQuery):
$(".noscript").hide();
I try to get to a page straight from Bash at http://www.ocwconsortium.org/. The page appears when you write mathematics to the field at the top right corner. I tested
open http://www.ocwconsortium.org/#mathematics
but it leads to the main page. It is clearly some javascript thing. How can I get the results straight from Bash on the first page?
[Clarification]
Let's take an example. I have the following lines for a Math search engine in .bashrc:
alias mathundergradsearch='/Users/user/bin/mathundergraduate'
Things in a separate file:
#!/bin/sh
q=$1
w=$2
e=$3
r=$4
t=$5
open "http://www.google.com/cse?cx=007883453237583604479%3A1qd7hky6khe&ie=UTF-8&q=$q+$w+$e+$r+$t&hl=en"
Now, I want something similar to the example. The difference is that the other site contains javascript or something that does not allow me to see the parameters. How could I know where to put the search parameters as I cannot see the details?
open "http://www.ocwconsortium.org/index.php?q=mathematics&option=com_coursefinder&uss=1&l=&s=&Itemid=166&b.x=0&b.y=0&b=search"
You need quotes because the URL contains characters the shell considers to be special.
The Links web browser more or less runs from the commandline (like lynx) and supports basic javascript.
Even though the title of the post sounds general, your question is very specific. It's unclear to me what you're trying to achieve in the end. Clearly you can access sites that rely heavily on javascript (else you wouldn't be able to post your question here), so I'm sure that you can open the mentioned site in a normal browser.
If you just want to execute javascript from the commandline (as the title suggests), it's easy if you're running bash via cygwin. You just call cscript.exe and provide a .js scriptname of what you wish to execute.
I didn't get anything handled by JavaScript - it just took me to
http://www.ocwconsortium.org/index.php?q=mathematics&option=com_coursefinder&uss=1&l=&s=&Itemid=166&b.x=0&b.y=0&b=search
Replacing mathematics (right after q=) should work. You may be able to strip out some of that query string, but I tried a couple of things and and it didn't play nice.
Don't forget to encode your query for URLs.
You will need to parse the response, find the URL that is being opened via JavaScript and then open that URL.
Check this out: http://www.phantomjs.org/.
PhantomJS it's a CLI tool that runs a real, fully-fledged Browser without the Chrome.