Aaron's code uses chrome.tabs.executeScript to dynamically inject the content script when the popup is opened - it's not included by default through the manifest.
~Arne
On Thu, Jan 21, 2010 at 1:53 PM, Bill.Keller <sweater...@gmail.com> wrote:
> Chromium 4.0.303.0 (36626) Mac
> Chrome 4.0.295.0 dev Mac
> Chrome 4.0.295.0 dev PC
>
> It seems as though the content_script only runs once on each page
> load. It's not continuously sending the selected txt to the background
> page.
>
> For example, the below content_script reveals that the only way to
> actually capture the selected text is to quickly select some text
> before a page finishes loading.
> chrome.extension.sendRequest(window.getSelection().toString());
> console.log(window.getSelection().toString());
>
>
>
>
>
> On Jan 21, 1:45 pm, Arne Roomann-Kurrik <kur...@google.com> wrote:
> > The sample still works for me in 4.0.295.0 (Official Build 35884)
> unstable
> >
> > Which version are you using?
> >
> > ~Arne
> >
> >
> >
> > On Thu, Jan 21, 2010 at 4:07 AM, soupenvy <sweater...@gmail.com> wrote:
> > > 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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