GEL Integration (2/2)

Launch search from extra panel to mimic Google Launcher.

Changed Trebuchet to build against CM instead of the AOSP SDK.
Added support to swipe left from the home screen to enter Google Now, if it is installed.
A right swipe will return the user to the home screen.

Change-Id: Ia1a77fedea7e67bcd54a6b6d66099f8366d6b1dc

1 files changed, 47 insertions, 3 deletions

diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 1209355ea..d30cde45b 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -241,6 +241,8 @@ public class Launcher extends Activity
     private static int NEW_APPS_ANIMATION_INACTIVE_TIMEOUT_SECONDS = 5;
     private static int NEW_APPS_ANIMATION_DELAY = 500;
 
+    private boolean mGelIntegrationEnabled = false;
+
     private final BroadcastReceiver mCloseSystemDialogsReceiver
             = new CloseSystemDialogsIntentReceiver();
     private final ContentObserver mWidgetObserver = new AppWidgetResetObserver();
@@ -484,6 +486,8 @@ public class Launcher extends Activity
         mSavedState = savedInstanceState;
         restoreState(mSavedState);
 
+        restoreGelSetting();
+
         if (PROFILE_STARTUP) {
             android.os.Debug.stopMethodTracing();
         }
@@ -531,6 +535,12 @@ public class Launcher extends Activity
                 "cyanogenmod.permission.PROTECTED_APP", null);
     }
 
+    public void restoreGelSetting() {
+        mGelIntegrationEnabled = SettingsProvider.getBoolean(this,
+                SettingsProvider.SETTINGS_UI_HOMESCREEN_SEARCH_SCREEN_LEFT,
+                R.bool.preferences_interface_homescreen_search_screen_left_default);
+    }
+
     private void initializeDynamicGrid() {
         LauncherAppState.setApplicationContext(getApplicationContext());
         LauncherAppState app = LauncherAppState.getInstance();
@@ -539,6 +549,8 @@ public class Launcher extends Activity
                 SettingsProvider.SETTINGS_UI_HOMESCREEN_HIDE_ICON_LABELS,
                 R.bool.preferences_interface_homescreen_hide_icon_labels_default);
 
+        restoreGelSetting();
+
         // Determine the dynamic grid properties
         Point smallestSize = new Point();
         Point largestSize = new Point();
@@ -565,13 +577,41 @@ public class Launcher extends Activity
         sPausedFromUserAction = true;
     }
 
-    /** To be overriden by subclasses to hint to Launcher that we have custom content */
+    /** To be overridden by subclasses to hint to Launcher that we have custom content */
     protected boolean hasCustomContentToLeft() {
-        return false;
+       return isGelIntegrationSupported() && isGelIntegrationEnabled();
+    }
+
+    public boolean isGelIntegrationSupported() {
+        final SearchManager searchManager =
+            (SearchManager) getSystemService(Context.SEARCH_SERVICE);
+        ComponentName globalSearchActivity = searchManager.getGlobalSearchActivity();
+
+        // Currently the only custom content available is the GEL launcher integration,
+        // only supported on CyanogenMod.
+        return globalSearchActivity != null && isCM();
+    }
+
+    public boolean isGelIntegrationEnabled() {
+        return mGelIntegrationEnabled;
+    }
+
+    public void onCustomContentLaunch() {
+        if(isGelIntegrationEnabled() && isGelIntegrationSupported()) {
+            GelIntegrationHelper.getInstance().registerSwipeBackGestureListenerAndStartGel(this);
+        }
     }
 
     /**
-     * To be overridden by subclasses to populate the custom content container and call
+     * Check if the device running this application is running CyanogenMod.
+     * @return true if this device is running CM.
+     */
+    protected boolean isCM() {
+        return getPackageManager().hasSystemFeature("com.cyanogenmod.android");
+    }
+
+    /**
+     * To be overridden by subclasses to create the custom content and call
      * {@link #addToCustomContentPage}. This will only be invoked if
      * {@link #hasCustomContentToLeft()} is {@code true}.
      */
@@ -1001,6 +1041,10 @@ public class Launcher extends Activity
         }
         super.onResume();
 
+        if(isGelIntegrationEnabled() && isGelIntegrationSupported()) {
+            GelIntegrationHelper.getInstance().handleGelResume();
+        }
+
         // Restore the previous launcher state
         if (mOnResumeState == State.WORKSPACE) {
             showWorkspace(false);