Is there any particular change in Chrome that prevents this from
working in the latest builds?
I can't seem to get this sample working.
On Nov 24 2009, 2:52 pm, Arne Roomann-Kurrik <kur...@google.com>
wrote:
> As a note, you'll need to convert the result of getSelection() to a
> string or else it won't serialize correctly for the sendRequest call.
> window.getSelection().toString() is probably easiest.
>
> If you want to get access to the selected text in a popup, you'll need
> to pass it onward from the background page. There's probably a better
> way to do this, but here's a background page which forwards the
> message:
>
> <html>
> <head>
> <script type="text/javascript">
> var selection_callbacks = [];
>
> function getSelection(callback) {
> selection_callbacks.push(callback);
> chrome.tabs.executeScript(null, { file:
> "contentscript.js" });
> };
>
> chrome.extension.onRequest.addListener(function (request) {
> var callback = selection_callbacks.shift();
> callback(request);
> });
> </script>
> </head>
> <body>
> </body>
> </html>
>
> and here's a popup which displays it (it's probably not a great idea
> to just innerHTML the text, but this is just an example):
>
> <html>
> <head>
> <script type="text/javascript">
> function onSelection(text) {
> document.getElementById("output").innerHTML = text;
> }
> chrome.extension.getBackgroundPage().getSelection(onSelection);
> </script>
> </head>
> <body>
> <div id="output">
> This should be replaced with the selected text
> </div>
> </body>
> </html>
>
> The content script is almost identical to Aaron's:
>
> chrome.extension.sendRequest(window.getSelection().toString());
>
> ~Arne
>
> On Nov 24, 11:08 am, Aaron Boodman <a...@google.com> wrote:
>
>
>
> > You can setup a content script that does it for you that your popup
> > communicates with. I do it with three files:
>
> > background.html (register this in your manifest with the background_page
> > key):
> > =============
> > function getSelection() {
> > chrome.tabs.executeScript(null, // by default, executes in current tab
> > { file: "content_script.js"});
>
> > }
>
> > chrome.extension.onRequest.addListener(function(request) {
> > alert("got selection: " + request);
>
> > });
>
> > content_script.js
> > ============
> > chrome.extension.sendRequest(window.getSelection());
>
> > popup.html
> > ========
> > chrome.extension.getBackgroundPage().getSelection();
>
> > I haven't tested any of this, but I think it should work :)
>
> > - a
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