如何使用 Selenium 和 Javascript 从背景图像中检索 url

Question

I'm trying to retrieve the url from an background image with Xpath or Javascript, but with no luck for now. this is what I have

<div style="width: 100%; display: inline-block;">
 <div tws-article-images-preload="item" class="tws-article-images--preload ng-scope tws-article-images-- 
   image-small" ng-click="closeImage()" use-original="useOriginal" style="background-image: 
   url(&quot;https://i.pinimg.com/originals/59/54/b4/5954b408c66525ad932faa693a647e3f.jpg;);">
 </div>
</div>

And have tried this two with different modification

//*[starts-with(@style, 'background-image: url()] <--Did not work 

return document.getElementsByClassName('tws-article-images--preload ng-scope tws-article-images--image-small').src

Answer 1

document.getElementsByClassName('classname')[0].style.backgroundImage.slice(4, -1).replace(/"/g, "");

Answer 2

You can try

return document.getElementsByClassName('tws-article-images--preload ng-scope tws-article-images--image-small').style.backgroundImage.slice(4, -1).replace(/["']/g, "");

Answer 3

Your XPath expression is wrong (missing ' and a possible annoying CRLF ). Fix it with:

//*[starts-with(@style, 'background-image:')]/@style

Then use regex to clean the result:

txt = 'background-image: url("https://i.pinimg.com/originals/59/54/b4/5954b408c66525ad932faa693a647e3f.jpg;);'
result = re.sub(r"^.+\"(.+?);.+", r"\1", txt)
print(result)

With XPath:

substring-after(substring-before(//*[starts-with(@style, 'background-image:')]/@style,';)'),'"')

Output: https://i.pinimg.com/originals/59/54/b4/5954b408c66525ad932faa693a647e3f.jpg

Answer 4

To retrieve the url from the background image you can usethe following solution:

• Using slice() :

   var img = document.getElementsByClassName('tws-article-images--preload')[0], style = img.currentStyle || window.getComputedStyle(img, false), bgImage = style.backgroundImage.slice(4, -1).replace(/"/g, ""); //printing the url console.log('Image URL: ' + bgImage);

• Using regex :

   var img = document.getElementsByClassName('tws-article-images--preload')[0], style = img.currentStyle || window.getComputedStyle(img, false), var url = backgroundImage.match(/url\(["']?([^"']*)["']?\)/)[1]; //printing the url console.log('Image URL: ' + url);