1 files changed, 83 insertions, 0 deletions
diff --git a/comm/suite/modules/OpenInTabsUtils.jsm b/comm/suite/modules/OpenInTabsUtils.jsm
new file mode 100644
index 0000000000..a04aa8d137
--- /dev/null
+++ b/comm/suite/modules/OpenInTabsUtils.jsm
@@ -0,0 +1,83 @@
+/* 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/. */
+
+"use strict";
+
+var EXPORTED_SYMBOLS = ["OpenInTabsUtils"];
+
+const {XPCOMUtils} = ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm");
+const {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
+
+XPCOMUtils.defineLazyGetter(this, "bundle", function() {
+  return Services.strings.createBundle("chrome://navigator/locale/tabbrowser.properties");
+});
+
+/**
+ * Utility functions that can be used when opening multiple tabs, that can be
+ * called without any tabbrowser instance.
+ */
+var OpenInTabsUtils = {
+  getString(key) {
+    return bundle.GetStringFromName(key);
+  },
+
+  getFormattedString(key, params) {
+    return bundle.formatStringFromName(key, params, params.length);
+  },
+
+  /**
+   * Gives the user a chance to cancel loading lots of tabs at once.
+   */
+  confirmOpenInTabs(numTabsToOpen, aWindow) {
+    const WARN_ON_OPEN_PREF = "browser.tabs.warnOnOpen";
+    const MAX_OPNE_PREF = "browser.tabs.maxOpenBeforeWarn";
+    if (!Services.prefs.getBoolPref(WARN_ON_OPEN_PREF)) {
+      return true;
+    }
+    if (numTabsToOpen < Services.prefs.getIntPref(MAX_OPNE_PREF)) {
+      return true;
+    }
+
+    // default to true: if it were false, we wouldn't get this far
+    let warnOnOpen = { value: true };
+
+    const messageKey = "tabs.openWarningMultipleBranded";
+    const openKey = "tabs.openButtonMultiple";
+    const BRANDING_BUNDLE_URI = "chrome://branding/locale/brand.properties";
+    let brandShortName = Services.strings
+                                 .createBundle(BRANDING_BUNDLE_URI)
+                                 .GetStringFromName("brandShortName");
+
+    let buttonPressed = Services.prompt.confirmEx(
+      aWindow,
+      this.getString("tabs.openWarningTitle"),
+      this.getFormattedString(messageKey, [numTabsToOpen, brandShortName]),
+      (Services.prompt.BUTTON_TITLE_IS_STRING * Services.prompt.BUTTON_POS_0) +
+        (Services.prompt.BUTTON_TITLE_CANCEL * Services.prompt.BUTTON_POS_1),
+      this.getString(openKey), null, null,
+      this.getFormattedString("tabs.openWarningPromptMeBranded",
+                              [brandShortName]),
+      warnOnOpen
+    );
+
+    let reallyOpen = (buttonPressed == 0);
+    // don't set the pref unless they press OK and it's false
+    if (reallyOpen && !warnOnOpen.value) {
+      Services.prefs.setBoolPref(WARN_ON_OPEN_PREF, false);
+    }
+
+    return reallyOpen;
+  },
+
+  /*
+   * Async version of confirmOpenInTabs.
+   */
+  promiseConfirmOpenInTabs(numTabsToOpen, aWindow) {
+    return new Promise(resolve => {
+      Services.tm.dispatchToMainThread(() => {
+        resolve(this.confirmOpenInTabs(numTabsToOpen, aWindow));
+      });
+    });
+  }
+};