Is there a way to access just the concealed text within an element?

Is there a way to create a JavaScript function that can specifically extract hidden text from an element? Are there any existing libraries with this capability, and if so, how efficient are they?

  • In order for an element to be considered visible according to the Selenium Webdriver W3C spec, it must have a height and width greater than 0px.
  • If any ancestor of the element, or the element itself, is hidden or has a CSS display property of none, then the element is not visible.
  • An element with a CSS3 Transform property that moves it out of view and cannot be scrolled to is also not visible.
  • SPECIAL CASE: OPTIONs and OPTGROUP elements are only shown if their enclosing select element is visible.
  • MAP elements are visible only when the image they use is visible. Areas within a map are visible when the enclosing MAP element is visible.
  • Any INPUT elements with "type=hidden" are considered invisible.
  • NOSCRIPT elements are hidden when JavaScript is enabled.
  • An element is not visible if any ancestor in its transitive closure of offsetParents has a fixed size, overflow:hidden CSS style, and the element's location is outside the bounds of the parent's fixed size.
javascriptcsshtmlseleniumwebdriver

Answer №1

A code can indeed be written to detect elements with display: none, visibility: hidden, or those that are positioned off the screen. This involves iterating through each element on the page, checking for visibility and extracting text from any visible text nodes within that element.

The speed of this operation will depend on the efficiency of the iteration code, taking into consideration optimizations like skipping children of hidden elements. The complexity and length of the document will also impact the overall execution time.

Distinguishing between text outside the boundaries of an element with overflow:hidden, elements off-screen, or obscured text by other elements poses a greater challenge. It may not be achievable solely using JavaScript due to its limitations in detecting these specific scenarios.

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