On 24 mar, 23:51, Chris <[email protected]> wrote:
> Hi all,
>
> I've been playing around with the ZeroClipboard
> (seehttp://code.google.com/p/zeroclipboard/) but I did not manage to get
> it to work as of now. After having tried out different approaches /
> solutions from other users (for example
> herehttp://code.google.com/p/zeroclipboard/wiki/IdeasAndSuggestions), I'm
> now asking you guys. =)
>
> I want to copy a calculated value *from within my GWT-application* to
> the clipboard so that I can use that value anywhere else using Ctrl-v
> (that's what ZeroClipboard is all about right? ;-) )
>
> I therefore put the corresponding code into my host html file
> (Application.html) of my GWT-app:
> <html>
> <head>
> <meta http-equiv="content-type" content="text/html;
> charset=UTF-8">
> <title>Application</title>
>
> <script type="text/javascript" language="javascript"
> src="ZeroClipbaord.js"></script>
> <script language="JavaScript">
> function copy() {
> var clip = new ZeroClipboard.Client();
> clip.setText('Copied!!!');
> clip.glue( 'buttonId' );
> }
> </script>
> <script type="text/javascript" language="javascript"
> src="GWTServlet.Application.nocache.js"></script>
> </head>
>
> <body>
> <iframe src="javascript:''" id="__gwt_historyFrame" tabIndex='-1'
> style="position:absolute;width:0;height:0;border:0"></iframe>
> </body>
> </html>
>
> My corresponding Java source-code looks like this:
> public class Application implements EntryPoint {
>
> /**
> * This is the entry point method.
> */
> public void onModuleLoad() {
> FlowPanel table = new FlowPanel();
>
> table.getElement().setId("FlowPanel");
>
> Button button = new Button("ClickMe to copy to clipboard");
> button.getElement().setId("buttonId");
> button.addClickListener(new ClickListener(){
>
> public void onClick(Widget arg0) {
> copyInJava();
> }
>
> });
> table.add(button);
>
> RootPanel.get().add(table);
> }
>
> public native void copyInJava() /*-{
> $wnd.copy();
> }-*/;
>
> }
>
> ZeroClipboard works just fine when used in plain HTML to copy contents
> to the clipboard but I did not manage to get it to work from inside a
> GWT-application.
>
> I also used FireBug to debug and apparently there is some issue when
> creating the ZeroClipboard.Client() object. Nonetheless, when I run it
> in plain HTML, everything is fine so I assume that the issue is due to
> the fact that I'm using a GWT-app to get the job done.
>
> Does anybody have suggestions what the problem might be?
My understanding of ZeroClipboard is that your copy() function should
be called *prior* to clicking the button, so that ZeroClipboard can
overlay a transparent Flash movie over the button; when you click the
button, you actually click the Flash movie which copies the given text
into the clipboard (that's click-jacking).
So with your code, on the first click you "install" the ZeroClipboard
client and starting with the second click only you copy the text to
the clipboard.
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