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Listen for Events from Browser "Find" Window in JavaScript
原标题:

Is there a way to listen for typing into the browser s "find" window in JavaScript?

this window
(source: apple.com)

I d like to be able to reinterpret the search text from JavaScript. What do I need to add an event listener for?

最佳回答

I don t know of any way you can listen for a find-like event and if that s supported in any browser it sure isn t a portable solution.

I also don t know what you re trying to achieve but I think that your best option is to listen for the keyboard events that trigger the find window and attempt to cancel them while attempting to emulate the find-toolbar/window with JavaScript of your own. This is however a herculean (and nearly impossible) task due to some browsers customization of keyboard shortcuts depending on the localization (for instance, in IE, en-US uses Ctrl+F (for Find) while pt-PT uses Ctrl+L (for Localizar, meaning find)).

Conclusion: I think you re out of luck there...

问题回答

No. There is no web standard that defines a "find" dialog, let alone events for it. The find dialog is vendor-specific and for all you know, browser X s "find" dialog lets users enter a mathematical function and match/"find" pixels on the page with it.

Hardly. Even if it were possible through some loophole to listen to the browser s built-in "find" function, it would be a privacy issue and get closed sooner or later. I m quite sure you won t be able to listen to the keystrokes either, as they take place outside the page s focus.





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