shadow-dom

问题 Say if I want to create a custom element using shadow dom. Some elements in the template have class names specified in the linked css file. Now I want to let the css rules have effects on the elements. But I can\'t achieve that because of the shadow dom style boundary. <link rel=\"stylesheet\" type=\"text/css\" href=\"https://maxcdn.bootstrapcdn.com/font-awesome/4.5.0/css/font-awesome.min.css\"> <template id=\"blog-header\"> <header> <h1>DreamLine</h1> <nav> <ul> <li><a href=\"#0\">Tour</a><

问题 I want to automate file download completion checking in chromedriver . HTML of each entry in downloads list looks like <a is=\"action-link\" id=\"file-link\" tabindex=\"0\" role=\"link\" href=\"http://fileSource\" class=\"\">DownloadedFile#1</a> So I use following code to find target elements: driver.get(\'chrome://downloads/\') # This page should be available for everyone who use Chrome browser driver.find_elements_by_tag_name(\'a\') This returns empty list while there are 3 new downloads.

问题 This is impossible to Google for because every article talking about the :before and :after pseudo-elements seems to use the word \'content\'. I heard about it in this CSS-Tricks article, explaining how to implement an image slider as an example use-case for web components. The code example it appears inside is thus: CSS #slides ::content img { width: 25%; float: left; } HTML <template> ... <div class=\"inner\"> <content select=\"img\"></content> </div> </template> It seems to be referring to

问题 I need get elements from Shadow DOM and change it. How i can do it? <div> <input type=\"range\" min=\"100 $\" max=\"3000 $\"> </div> 回答1: Here is an example: var container = document.querySelector('#example'); //Create shadow root ! var root = container.createShadowRoot(); root.innerHTML = '<div>Root<div class="test">Element in shadow</div></div>'; //Access the element inside the shadow ! //"container.shadowRoot" represents the youngest shadow root that is hosted on the element ! console.log

问题 I would like to dynamically build a component tree basing on some information received from AJAX calls. How to programmatically add a component to the DOM from inside of other component? I have <outer-comp> and I would like, basing on some logic, insert an <inner-comp> . The following code just inserts the elements <inner-comp></inner-comp> to the DOM, and not actual <inner-comp> representation. @NgComponent( selector: \'outer-comp\', templateUrl: \'view/outer_component.html\', cssUrl: \'view

问题 I had been following the discussion How to automate shadow DOM elements using selenium? to work with #shadow-root (open) elements. While in the process of locating the Clear data button within the Clear browsing data popup, which appears while accessing the url chrome://settings/clearBrowserData through Selenium I am unable to locate the following element: #shadow-root (open) <settings-privacy-page> Snapshot: Using Selenium following are my code trials and the associated errors encountered: