@Override public boolean onPrepareOptionsMenu(Menu aMenu) { if (aMenu == null) return false; if (!checkLaunchState(LaunchState.GeckoRunning)) aMenu.findItem(R.id.settings).setEnabled(false); Tab tab = Tabs.getInstance().getSelectedTab(); MenuItem bookmark = aMenu.findItem(R.id.bookmark); MenuItem forward = aMenu.findItem(R.id.forward); MenuItem share = aMenu.findItem(R.id.share); MenuItem saveAsPDF = aMenu.findItem(R.id.save_as_pdf); MenuItem charEncoding = aMenu.findItem(R.id.char_encoding); MenuItem findInPage = aMenu.findItem(R.id.find_in_page); MenuItem desktopMode = aMenu.findItem(R.id.desktop_mode); // Only show the "Quit" menu item on pre-ICS. In ICS+, it's easy to // kill an app through the task switcher. aMenu.findItem(R.id.quit).setVisible(Build.VERSION.SDK_INT < 14); if (tab == null || tab.getURL() == null) { bookmark.setEnabled(false); forward.setEnabled(false); share.setEnabled(false); saveAsPDF.setEnabled(false); findInPage.setEnabled(false); return true; } bookmark.setEnabled(!tab.getURL().startsWith("about:reader")); bookmark.setCheckable(true); bookmark.setChecked(tab.isBookmark()); bookmark.setIcon( tab.isBookmark() ? R.drawable.ic_menu_bookmark_remove : R.drawable.ic_menu_bookmark_add); forward.setEnabled(tab.canDoForward()); desktopMode.setChecked(tab.getDesktopMode()); desktopMode.setIcon( tab.getDesktopMode() ? R.drawable.ic_menu_desktop_mode_on : R.drawable.ic_menu_desktop_mode_off); String url = tab.getURL(); if (ReaderModeUtils.isAboutReader(url)) { String urlFromReader = ReaderModeUtils.getUrlFromAboutReader(url); if (urlFromReader != null) url = urlFromReader; } // Disable share menuitem for about:, chrome:, file:, and resource: URIs String scheme = Uri.parse(url).getScheme(); share.setEnabled( !(scheme.equals("about") || scheme.equals("chrome") || scheme.equals("file") || scheme.equals("resource"))); // Disable save as PDF for about:home and xul pages saveAsPDF.setEnabled( !(tab.getURL().equals("about:home") || tab.getContentType().equals("application/vnd.mozilla.xul+xml"))); // Disable find in page for about:home, since it won't work on Java content findInPage.setEnabled(!tab.getURL().equals("about:home")); charEncoding.setVisible(GeckoPreferences.getCharEncodingState()); return true; }