How to inject CSS into webkit? - webkit

On Linux I'm creating a webkit window which needs to display a certain URL.
I'm doing that like the following:
GtkWidget *main_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
// Create a browser instance
WebKitWebView *webView = WEBKIT_WEB_VIEW(webkit_web_view_new());
// Put the browser area into the main window
gtk_container_add(GTK_CONTAINER(main_window), GTK_WIDGET(webView));
// Load a web page into the browser instance
webkit_web_view_load_uri(webView, "http://example.com");
// Make sure that when the browser area becomes visible, it will get mouse
// and keyboard events
gtk_widget_grab_focus(GTK_WIDGET(webView));
// Show the result
gtk_window_set_default_size(GTK_WINDOW(main_window), 800, 600);
gtk_widget_show_all(main_window);
However, I need to inject some CSS into this to hide a certain checkbox.
How do I inject CSS into the DOM.
I see that I can get the dom like
WebKitDOMDocument *dom = webkit_web_view_get_dom_document(webView);
But from here I can't see how to inject the CSS.

It sounds like the webkit_web_view_run_javascript() answer was a good solution to your specific problem, since you only needed to hide one checkbox.
To answer the general problem of how to inject arbitrary CSS: if you're using a recent version of WebKitGTK+, create a WebKitUserContentManager, call webkit_user_content_manager_add_stylesheet(), and then pass the WebKitUserContentManager when creating your WebKitWebView, either using webkit_web_view_new_with_user_content_manager() or by using g_object_new() manually if you need to set multiple construct-only properties.
Unrelated warning: webkit_web_view_get_dom_document() was removed in WebKitGTK+ 2.6. (The DOM API is only accessible via web process extensions nowadays.) You are using an old, insecure version of WebKitGTK+!

Its not clear which Webkit GTK version you are using, however concepts essentially remain same for both versions. For webkit version 2, its slightly more complicated as DOM manipulation is done on extension side.
You need to reach to the desired element - either by id e.webkit-dom-document-get-element-by-id or by name. This will return you instance of WebElement. If you use by name call, please be ware that there could be multiple elements with same name
From here you can either set the style by setting appropriate style attribute webkit_dom_element_set_attribute or other variations that can deal with styles and css rules.
Or you can take easy option and just execute the javascript that does the same thing by calling webkit_web_view_run_javascript

Related

OpenTest support for Dojo toolkit

I'm trying to use OpenTest with web applications created with IBM EGL using the Dojo toolkit. The issue with dojo is that it dynamically generates id's every time so they cannot be used as a locator. In addition many elements do not have an xpath so that can't be used either.
It seems like this is a common issue when I search for "dojo" and "selenium" but I haven't found any solutions yet.
Other testing tools have "explicit" support for specific frameworks (e.g. like dojo) so I assume it's technically feasible.
Here is an excerpt from a website where this same question was asked and OpenTest supports building out macros that do just what this indvidual was able to do with .NET code. Please reference the blockquote below as well as the source
I use Selenium to Test my web application which is built by dojo/dijit
and asp.net MVC, so far it works fine.
I've faced the same issues with yours before. My way is "don't think
about dojo widgets" when writing steps interacting with them. Treat
them as normal complex html elements. You need to browse your dom tree
on the client after dojo parse your widgets, locate the real dom
element which dijit's value node or interactive part corresponding to
and do thing (Click, SendKey or GetId in your case) to it.
It is also good to wrap some common actions to widgets into Helpers
which can be reused in your project.
Below is a simple .NET example I use to test whether a button exist in
a dGrid, I just use css selector to find the cell, hope it helps:
[Then("I can delete it at row '(.*)'")]
public void Then_I_can_delete_it_at_row(int rowIndex)
{
var nthRow = Browser.FindElementsChecked(By.CssSelector(".dgrid-content .dgrid-row-table")).ElementAt(rowIndex - 1);
var deleteBtnsInRow = nthRow.FindElementsChecked(By.XPath(".//span[text() = 'Delete']"));
Assert.AreEqual(1, deleteBtnsInRow.Count);
}

Does the windowClass property or NgbModalOptions actually do anything?

I am opening an NgbModal passing a TemplateRef to create the dialog body, and passing in a custom class via the windowClass property of the NgbModalOptions object that I pass to the open() method. I define the class in a referenced styleUrl in the component and am serving the modal via an injectable service in the component. The modal is loading fine, and I can see the class name when I inspect the DOM, but the class appears to have no bearing on the modal. I would like to use it to customize the size of the modal (css is defined to affect the child div where the size is set), but I have also played with properties that I can see in the Styles tab of the Chrome dev tools, but cannot see it affecting anything. When I inspect in Firefox dev tools, I can find the CSS as an inline style sheet and it has a reference to the ngContent identifier assigned by Angular, so I am assuming that is does not affect the entire document, nor those parts added by ng-bootstrap that constitute the modal wrapper. Has anyone been able to make this work successfully? I am at my wit's end. I would even be happy if I could get an ElementRef of the modal-header dive, but since I am using a template (which is not fully loaded in the DOM at init time) I have not been able to. One of my requirements is that we do all DOM manipulation via Angular to maintain platform independence in the project ... so no jQuery. Any thoughts? And thanks in advance!!
I use windowClass and size attributes of NgbModalOptions to customize the modal. Sample code follows:
this.modalService.open(<your_template_ref_var>, {size: 'lg', windowClass: 'modal-adaptive-s1'});
Whereas
.modal-adaptive-s1 .modal-lg {width: 400px !important; max-width: 400px;}

Initialize dynamic Component in Code using Vue.js

I am currently developing a web application that is used to display elements for events on a map provided by HERE Maps. I am using Vue.
I have some components, but the relevant component is the component HereMaps.vue which initializes the map using the HERE Maps Api.
The HERE Maps Api provides the possibility to place so called InfoBubbles on the map showing additional information. These InfoBubbles can be provided some HTML-code in order to customize their appearance.
Please refer to the documentation for additional information
Following the documentation the code looks something like this:
let bubble = new H.ui.InfoBubble(marker.getPosition(), {
content: "<div class='someClass'>Some Content</div>"
});
this.ui.addBubble(bubble)
This is happening after mount in the "mounted" method from Vue in the "HereMaps" component.
The Bubbles are added in a "closed" (hidden) form and dynamically "opened" to reveal their content when the corresponding marker icon on the map is clicked. Therefore the HTML-code is present on the DOM after the component is mounted and is not removed at a later stage.
Now instead of supplying custom code within each bubble added to the UI i want to just add a component like this:
let bubble = new H.ui.InfoBubble(marker.getPosition(), {
content: "<myDynamicComponent></myDynamicComponent>"
});
this.ui.addBubble(bubble)
It does not matter to me wether the component is initialized using props or if it is conditionally rendered depending on the state of a global variable. I just want to be able to use the "myDynamicComponent" in order to customize the appearance in a different file. Otherwise the design process gets very messy.
As far as i know this is not possible or at least i was not able to get it work. This is probably due to the fact that the "myDynamicComponent" is not used within the "template" of the "HereMaps" component und thus Vue does not know that it needs to render something here after the directive is added to the DOM in the "mounted" method.
This is what the InfoBubble looks using normal HTML as an argument:
This is what the InfoBubble looks using the component as an argument:
It appears to just be empty. No content of the "myDynamicComponent" is shown.
Does anyone have any idea how i could solve this problem.
Thank You.
Answer is a bit complicated and I bet you wouldn't like it:)
content param can accept String or Node value. So you can make new Vue with rendered your component and pass root element as content param.
BTW, Vue does not work as you think, <myDynamicComponent></myDynamicComponent> bindings, etc exists in HTML only in compile time. After that all custom elements(components) are compiled to render functions. So you can't use your components in that way.
Give us fiddle with your problem, so we can provide working example:)

Aurelia popover checkbox checked.bind not reflecting on the view model

We have implemented checkbox in popover. There we are using checked.bind , but in the view model its not reflecting its value on change of the checkboxes.
Sample Gist Run Provided below:
Gist Run
Thanks in Advance
Programmatically injected HTML needs to be compiled manually
The integration with bootstrap I provided to you earlier cannot do this. The bootstrap plugin assigns the innerHTML property of the popover and it does this outside of aurelia's rendering pipeline. The HTML is therefore not compiled by aurelia, which is why bindings (and other aurelia behaviors) will not work.
The templating framework takes care of this for you automatically as long as you are following conventions (such as custom elements). In any other case you'll need to manually work with the ViewCompiler.
In case you're interested, you can see an example with programmatically generated HTML in this gist. Also see this question if you want to know more about it. I do not recommend it in this scenario however.
Use aurelia-dialog
A tooltip (or popover) is just that: a tip on how to use the tool. It should not need more than some plain markup, text and styling (of course this is subjective to some degree, and some people may disagree)
For collecting user input in-between pages or screens, I'd argue a modal dialog is a better fit because of its property to "pop out" more and to de-emphasize the rest of the screen until the user either proceeds or cancels.
More importantly, by using aurelia-dialog your bindings and behaviors will simply work because, well, it's an aurelia plugin :-)

Modernizr doesn't check for cssresize

I'm learning to use modernizr. The documentation says it checks for resize attribute and it returns a cssresize class if that feature is supported, or a no-cssresize feature if it's not.
It returns neither value in the list of classes assigned to the html element.
To get the modernizr js file, I clicked on every single option on the download page.
Is this a bug or am I doing something wrong?