问题
I have to create a process where a document is shown to the user and the user can highlight text and copy (and eventually paste) the text from some portions of the document.
I am using google doc viewer in an iframe (since I need a universal doc viewer that's free - although I'm open to other ideas on viewers). Google doc viewer does what I need but it seems that I don't have access to the internals of the iframe to get the highlighted contents.
I've looked at many links related to triggering a copy (cntl-c) in javascript, but nothing firm in the process.
Ideally I would like a button outside of the iframe to click on which would copy to the clipboard the selection a user made inside of the google doc viewer.
Any suggestion on how to achieve this?
回答1:
Utilising window.getSelection();.
tutorial: http://mark.koli.ch/2009/09/use-javascript-and-jquery-to-get-user-selected-text.html
来源：https://stackoverflow.com/questions/15722712/need-to-highlight-and-copy-text-from-google-doc-viewer-to-clipboard