What I am looking for here is a way to possibly click a button inside a web browser control and have it call a sub from inside the program or have the program react to something on the page.
I am trying to make a HTML5 GUI for my application. I don't really want use any 3rd party API's to handle commands from a HTML5 interface but if I can find another alternative that would be good. But if there is no other way I would be content with using a 3rd party API.
The way I have done this in the past is to specify a special protocol for my app.
yourapp:somefunction/someparameter
Handle the Navigating event, and in your code for when that event is fired, check to see if the URL has your protocol on the front of it. If it is, set e.Cancel = true to cancel navigation, and add code to handle the URL parameters yoruself.
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I am facing problem of testing jmeter/Webdriver for a webapp which has Knockout framework installed. I fill all the form fields OK but when run click search button it displays the error that required fields need not to be empty. I checked all web element value are not empty. As my understand Knockout is not activated to bind Web elements with DataModel from Knockout. I used wait WDS.browser.manage().timeouts().implicitlyWait for webpage fully loaded/ajax calling or event being fired but without any success. I Do you have any experiencing and solution for testing this kinds of webapp?
thanks
It might be the case you need to trigger a certain JavaScript event in order to "tell" the web application that you finish the input, i.e. onkeyup or onblur which is not being automatically called by Selenium's sendKeys() function
You can use i.e. WDS.browser.executeScript() function to send the event(s) which indicate that you filled in the form(s). Check out The WebDriver Sampler: Your Top 10 Questions Answered article to learn how to call scripts, use Waits, etc.
I have a visual basic web application and i placed a textbox on the form. When I look at the actions available for that textbox, the only actions available are DataBinding, Disposed, Init, Load, PreRender, TextChanged, and Unload. Why is KeyDown not available? Is it because this is a web application as opposed to a windows application? Is it possible to build an event handler that will fire the when a key is pressed? Maybe I have to convert my project to a windows application?
Yes, that is the reason. Remember that, in a web application, functionality is split between server and client. If you want to react to keystrokes then you need to do that on the client side, which means using JavaScript.
You are using Asp.Net Web Forms application. The very reason it exists is to help developers who previously worked on WinForms applications to move towards Web Development. This is why there are some similarities, e.g. WinControls <-> WebControls. But don't forget, you are in the WEB now. Your Button_onClick event works completely differently. If on WinForms this is invoked directly by button press; on the WebForms, your form is translated into HTML page with <form> and <input . . .> tags. And it builds javascript automatically, so when you press the button, there is a POST call to a server. Then, your server receives request, and directs execution to Button_onClick during so-called "page cycle".
Once you decide that your app needs to be a web app, you should probably forget doing it using Web Forms because this system is not true web development. A true web-centric development would be Javascript-based UI, may be using some framework like Vue or Angular with Asp.net Web Api as server app. May be you should start with Asp.net MVC. This will make you concentrate on single application, because server and client components are developed together when you use MVC.
Going back to main question - yes, 2 different systems, do not expect compatibility. And even when something seem similar, they might behave differently.
Why do you want to capture the keystroke?
You can control that the TextBox is entered by code, for example, that only numbers are entered;
asp:TextBox ID="TextBox3" runat="server" Width="50px"
AutoComplete="off" MaxLength="20" type="number" step="any"
TabIndex="9">
Inside my app, I'm using the WKWebView to display a website. My goal is, when user is pressing a button on this website, I want to stop an action linked to this event and replace it with my own, natively made (custom action outside the WKWebView). I've been trying to search for any solution to fetch mentioned event but unsuccessful. What more came to my mind, if there is a way to fetch a JavaScript in WKWebView, I have a possibility to add some JS script code to this site (not to delete the action I want to block). Thank you for any help.
First, do you have a permission to mess with this web site's behaviour? I assume you do, otherwise it is likely illegal.
Second, try using Safari Web Inspector with a device/simulator, and use the DOM tree and console tools to find out what is the HTML/javascript that is involved with this action on this site.
If you can't find what happens in HTML/JS yourself, feel free to post a new separate question on SO with your target URL, some HTML/JS code, and which link/action you want to replace. Tag the question with "javascript" and ask if it is possible to write some javascript to replace that particular action to some custom JS code.
Usually there are 2 types of actions: either it is something that provokes AJAX calls to a server API triggered by an event handler, or it is a plain HTML link that results in a web navigation. For both cases it is possible to write a JS script that overrides the action.
Finally, use WKUserScript to inject javascript into the page, and override the action. Use window.webkit.messageHandlers to send an event from your custom action to the app side. Use WKScriptMessageHandler to process the event in the Objective-C or Swift code.
See an example here: http://nshipster.com/wkwebkit/
Part of the beauty of BrowserID is that it requires very little in the way of infrastructure on your website, you simply embed a button with some javascript and then setup a callback route to handle the post-authentication data. I would like to be able to embed the BrowserID login button at the top of all of my pages inside of the defaultLayout template (and then conditionally show/hide it based on the login state), but I currently see no way to do this. The Auth subsite works by embedding its "login page" inside of the defaultLayout template, but aside from that seems to be a complete blackbox.
I'd really like to be able to avoid either rolling my own handler for BrowserID login or redirecting the user to a completely seperate page that just has a single BrowserID login button on it if at all possible.
Is there a way to accomplish what I'm trying to do that I'm just missing, or is my best bet really to roll my own BrowserID login code?
Looking at the source code for the Yesod.Auth.BrowserId module it looks like I might be able to do something like:
(apLogin authBrowserId) <not sure what would go here>
in order to get the login widget, but hijacking the guts of the plugin like that feels dirty.
You can use createOnClick to generate a Javascript function, and then insert whatever kind of button/link/image on your page. Just attach a click handler and have it call that function.
I am converting code that originally ran as remote signed jar files in Firefox to use XULRunner instead. There are several reports that are implemented as web pages with an output option. Options include an HTML page or a report viewer that is written in XUL and Javascript.
When the user submits the form, and the report viewer is selected, then I need to open a chrome window. Obviously this cannot be done directly for security reasons. I want to provide a function or use some sort of message passing method to signal to the containing chrome what needs to happen.
Can this be done and if so how? Things I am considering:
1) Adding a function to the content window's window or document object
2) Some sort of message passing function
3) Some sort of customer event send/receive
4) A special URL form with a handler such as repviewer://repname/parameters
There is a quite elaborate article on this topic on MDN. The best way to achieve this without jeopardizing security is to send a generic event from your web page. The top XUL document should call addEventListener() with the fourth parameter set to true which will allow it to receive such untrusted events. Data can be passed through an attribute of the event target, the XUL document can then inspect that attribute.