1 files changed, 78 insertions, 0 deletions
diff --git a/mobile/android/base/java/org/mozilla/gecko/toolbar/ToolbarPrefs.java b/mobile/android/base/java/org/mozilla/gecko/toolbar/ToolbarPrefs.java
new file mode 100644
index 000000000..f881de154
--- /dev/null
+++ b/mobile/android/base/java/org/mozilla/gecko/toolbar/ToolbarPrefs.java
@@ -0,0 +1,78 @@
+/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
+ * 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/. */
+
+package org.mozilla.gecko.toolbar;
+
+import org.mozilla.gecko.PrefsHelper;
+import org.mozilla.gecko.Tab;
+import org.mozilla.gecko.Tabs;
+import org.mozilla.gecko.util.ThreadUtils;
+
+class ToolbarPrefs {
+    private static final String PREF_AUTOCOMPLETE_ENABLED = "browser.urlbar.autocomplete.enabled";
+    private static final String PREF_TRIM_URLS = "browser.urlbar.trimURLs";
+
+    private static final String[] PREFS = {
+        PREF_AUTOCOMPLETE_ENABLED,
+        PREF_TRIM_URLS
+    };
+
+    private final TitlePrefsHandler HANDLER = new TitlePrefsHandler();
+
+    private volatile boolean enableAutocomplete;
+    private volatile boolean trimUrls;
+
+    ToolbarPrefs() {
+        // Skip autocompletion while Gecko is loading.
+        // We will get the correct pref value once Gecko is loaded.
+        enableAutocomplete = false;
+        trimUrls = true;
+    }
+
+    boolean shouldAutocomplete() {
+        return enableAutocomplete;
+    }
+
+    boolean shouldTrimUrls() {
+        return trimUrls;
+    }
+
+    void open() {
+        PrefsHelper.addObserver(PREFS, HANDLER);
+    }
+
+    void close() {
+        PrefsHelper.removeObserver(HANDLER);
+    }
+
+    private void triggerTitleChangeListener() {
+        ThreadUtils.postToUiThread(new Runnable() {
+            @Override
+            public void run() {
+                final Tabs tabs = Tabs.getInstance();
+                final Tab tab = tabs.getSelectedTab();
+                if (tab != null) {
+                    tabs.notifyListeners(tab, Tabs.TabEvents.TITLE);
+                }
+            }
+        });
+    }
+
+    private class TitlePrefsHandler extends PrefsHelper.PrefHandlerBase {
+        @Override
+        public void prefValue(String pref, boolean value) {
+            if (PREF_AUTOCOMPLETE_ENABLED.equals(pref)) {
+                enableAutocomplete = value;
+
+            } else if (PREF_TRIM_URLS.equals(pref)) {
+                // Handles PREF_TRIM_URLS, which should usually be a boolean.
+                if (value != trimUrls) {
+                    trimUrls = value;
+                    triggerTitleChangeListener();
+                }
+            }
+        }
+    }
+}