1 files changed, 89 insertions, 0 deletions
diff --git a/browser/components/preferences/tabs.js b/browser/components/preferences/tabs.js
new file mode 100644
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+++ b/browser/components/preferences/tabs.js
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+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+var gTabsPane = {
+
+  /*
+   * Preferences:
+   *
+   * browser.link.open_newwindow
+   * - determines where pages which would open in a new window are opened:
+   *     1 opens such links in the most recent window or tab,
+   *     2 opens such links in a new window,
+   *     3 opens such links in a new tab
+   * browser.tabs.loadInBackground
+   * - true if display should switch to a new tab which has been opened from a
+   *   link, false if display shouldn't switch
+   * browser.tabs.warnOnClose
+   * - true if when closing a window with multiple tabs the user is warned and
+   *   allowed to cancel the action, false to just close the window
+   * browser.tabs.warnOnOpen
+   * - true if the user should be warned if he attempts to open a lot of tabs at
+   *   once (e.g. a large folder of bookmarks), false otherwise
+   * browser.taskbar.previews.enable
+   * - true if tabs are to be shown in the Windows 7 taskbar
+   */
+
+  /**
+   * Initialize any platform-specific UI.
+   */
+  init: function () {
+#ifdef XP_WIN
+    const Cc = Components.classes;
+    const Ci = Components.interfaces;
+    try {
+      let sysInfo = Cc["@mozilla.org/system-info;1"].
+                    getService(Ci.nsIPropertyBag2);
+      let ver = parseFloat(sysInfo.getProperty("version"));
+      let showTabsInTaskbar = document.getElementById("showTabsInTaskbar");
+      showTabsInTaskbar.hidden = ver < 6.1;
+    } catch (ex) {}
+#endif
+    // Set the proper value in the newtab drop-down.
+    gTabsPane.readNewtabUrl();
+  },
+
+  /**
+   * Pale Moon: synchronize warnOnClose and warnOnCloseOtherTabs
+   */
+  syncWarnOnClose: function() {
+    var warnOnClosePref = document.getElementById("browser.tabs.warnOnClose");
+    var warnOnCloseOtherPref = document.getElementById("browser.tabs.warnOnCloseOtherTabs");
+    warnOnCloseOtherPref.value = warnOnClosePref.value;
+  },
+  
+  /**
+   * Determines where a link which opens a new window will open.
+   *
+   * @returns |true| if such links should be opened in new tabs
+   */
+  readLinkTarget: function() {
+    var openNewWindow = document.getElementById("browser.link.open_newwindow");
+    return openNewWindow.value != 2;
+  },
+
+  /**
+   * Determines where a link which opens a new window will open.
+   *
+   * @returns 2 if such links should be opened in new windows,
+   *          3 if such links should be opened in new tabs
+   */
+  writeLinkTarget: function() {
+    var linkTargeting = document.getElementById("linkTargeting");
+    return linkTargeting.checked ? 3 : 2;
+  },
+
+  /**
+   * Determines the value of the New Tab display drop-down based
+   * on the value of browser.newtab.url.
+   */
+  readNewtabUrl: function() {
+    let newtabUrlChoice = document.getElementById("browser.newtab.choice");
+    newtabUrlChoice.value = gNewtabUrl.getNewtabChoice();
+    if (newtabUrlChoice.value == 0) {
+      document.getElementById("newtabPageCustom").hidden = false;
+    }
+    gNewtabUrl.newtabUrlChoiceIsSet = true;
+  }
+};