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Enumerating tabbrowser tabs

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==Enumerating tabbrowser tabs== ==Enumerating tabbrowser tabs==
<ul><li>To go through all open tabs in a browser, you first need to get a reference to browser's window. If your code is executed from a browser.xul (in Firefox) overlay (for example it is a toolbar button or menu ''click'' handler), you can access current window via <tt>window</tt> pre-defined variable. <ul><li>To go through all open tabs in a browser, you first need to get a reference to browser's window. If your code is executed from a browser.xul (in Firefox) overlay (for example it is a toolbar button or menu ''click'' handler), you can access current window via <tt>window</tt> pre-defined variable.
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To learn what methods are available for <browser> and <tabbrowser> elements, use [[DOM Inspector]] or look in [http://lxr.mozilla.org/seamonkey/source/toolkit/content/widgets/browser.xml browser.xml] and [http://lxr.mozilla.org/seamonkey/source/toolkit/content/widgets/tabbrowser.xml tabbrowser.xml] for corresponding [[Dev : Extensions : Resources#XBL|XBL bindings]]. To learn what methods are available for <browser> and <tabbrowser> elements, use [[DOM Inspector]] or look in [http://lxr.mozilla.org/seamonkey/source/toolkit/content/widgets/browser.xml browser.xml] and [http://lxr.mozilla.org/seamonkey/source/toolkit/content/widgets/tabbrowser.xml tabbrowser.xml] for corresponding [[Dev : Extensions : Resources#XBL|XBL bindings]].
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Revision as of 03:16, 19 December 2004

This page is part of the extension development documentation project.

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Note: development documentation is in process of being moved to Mozilla Development Center (MDC).

Enumerating tabbrowser tabs

  • To go through all open tabs in a browser, you first need to get a reference to browser's window. If your code is executed from a browser.xul (in Firefox) overlay (for example it is a toolbar button or menu click handler), you can access current window via window pre-defined variable. If your code is executed from its own window (for example, Settings dialog), you can use nsIWindowMediator to get it (further info in nsIWindowMediator).
  • Then you need to get the <tabbrowser> element. You can get it with win.gBrowser, where win is the browser's window from the previous step. You can use just gBrowser instead of window.gBrowser, if running from browser.xul overlay.
  • Now use gBrowser.mPanelContainer.childNodes.length to get the number of open tabs. Then use gBrowser.getBrowserAtIndex() to get a <browser> element. For example:
    var l = gBrowser.mPanelContainer.childNodes.length;
    for(var i = 0; i < l; i++) {
      var b = gBrowser.getBrowserAtIndex(i);
      try {
        dump(b.currentURI.spec); // dump URLs of all open tabs to console
      } catch(e) {}
    }

To learn what methods are available for <browser> and <tabbrowser> elements, use DOM Inspector or look in browser.xml and tabbrowser.xml for corresponding XBL bindings.