Merge changes I0da0f04f,I93197665 into ics-mr1

* changes:
  Offer the user an option to launch Dreams when docked.
  Teach UiModeMgr about high-end and low-end desk docks.

packages/SystemUI/AndroidManifest.xml

@@ -46,6 +46,16 @@
             </intent-filter>
         </receiver>
 
+        <!-- handle dock insertion, launch screensaver instead -->
+        <activity android:name=".DreamsDockLauncher"
+                android:label="@string/dreams_dock_launcher">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.DESK_DOCK" />
+            </intent-filter>
+        </activity>
+
         <activity android:name=".usb.UsbStorageActivity"
                 android:excludeFromRecents="true">
         </activity>

packages/SystemUI/res/values/strings.xml

@@ -351,4 +351,7 @@
 
     <!-- Content description of the clear button in the notification panel for accessibility (not shown on the screen). [CHAR LIMIT=NONE] -->
     <string name="accessibility_clear_all">Clear all notifications.</string>
+
+    <!-- Description of the desk dock action that invokes the Android Dreams screen saver feature -->
+    <string name="dreams_dock_launcher">Activate screen saver</string>
 </resources>

packages/SystemUI/src/com/android/systemui/DreamsDockLauncher.java

@@ -0,0 +1,39 @@
+package com.android.systemui;
+
+import android.app.Activity;
+import android.content.BroadcastReceiver;
+import android.content.ComponentName;
+import android.content.ContentResolver;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Bundle;
+import android.provider.Settings;
+import android.util.Slog;
+
+public class DreamsDockLauncher extends Activity {
+    private static final String TAG = "DreamsDockLauncher";
+    @Override
+    protected void onCreate (Bundle icicle) {
+        super.onCreate(icicle);
+        try {
+            String component = Settings.Secure.getString(
+                    getContentResolver(), Settings.Secure.DREAM_COMPONENT);
+            if (component != null) {
+                ComponentName cn = ComponentName.unflattenFromString(component);
+                Intent zzz = new Intent(Intent.ACTION_MAIN)
+                    .setComponent(cn)
+                    .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
+                        | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
+                        | Intent.FLAG_ACTIVITY_NO_USER_ACTION
+                        );
+                startActivity(zzz);
+            } else {
+                Slog.e(TAG, "Couldn't start screen saver: none selected");
+            }
+        } catch (android.content.ActivityNotFoundException exc) {
+            // no screensaver? give up
+            Slog.e(TAG, "Couldn't start screen saver: none installed");
+        }
+        finish();
+    }
+}

services/java/com/android/server/UiModeManagerService.java

@@ -123,6 +123,10 @@ class UiModeManagerService extends IUiModeManager.Stub {
         @Override
         public void onReceive(Context context, Intent intent) {
             if (getResultCode() != Activity.RESULT_OK) {
+                if (LOG) {
+                    Slog.v(TAG, "Handling broadcast result for action " + intent.getAction() 
+                            + ": canceled: " + getResultCode());
+                }
                 return;
             }
 
@@ -152,6 +156,12 @@ class UiModeManagerService extends IUiModeManager.Stub {
                     }
                 }
 
+                if (LOG) {
+                    Slog.v(TAG, String.format(
+                        "Handling broadcast result for action %s: enable=0x%08x disable=0x%08x category=%s", 
+                        intent.getAction(), enableFlags, disableFlags, category));
+                }
+                
                 if (category != null) {
                     // This is the new activity that will serve as home while
                     // we are in care mode.
@@ -424,11 +434,22 @@ class UiModeManagerService extends IUiModeManager.Stub {
         }
     }
 
+    final static boolean isDeskDockState(int state) {
+        switch (state) {
+            case Intent.EXTRA_DOCK_STATE_DESK:
+            case Intent.EXTRA_DOCK_STATE_LE_DESK:
+            case Intent.EXTRA_DOCK_STATE_HE_DESK:
+                return true;
+            default:
+                return false;
+        }
+    }
+
     final void updateConfigurationLocked(boolean sendIt) {
         int uiMode = Configuration.UI_MODE_TYPE_NORMAL;
         if (mCarModeEnabled) {
             uiMode = Configuration.UI_MODE_TYPE_CAR;
-        } else if (mDockState == Intent.EXTRA_DOCK_STATE_DESK) {
+        } else if (isDeskDockState(mDockState)) {
             uiMode = Configuration.UI_MODE_TYPE_DESK;
         }
         if (mCarModeEnabled) {
@@ -477,7 +498,7 @@ class UiModeManagerService extends IUiModeManager.Stub {
             if (mLastBroadcastState == Intent.EXTRA_DOCK_STATE_CAR) {
                 adjustStatusBarCarModeLocked();
                 oldAction = UiModeManager.ACTION_EXIT_CAR_MODE;
-            } else if (mLastBroadcastState == Intent.EXTRA_DOCK_STATE_DESK) {
+            } else if (isDeskDockState(mLastBroadcastState)) {
                 oldAction = UiModeManager.ACTION_EXIT_DESK_MODE;
             }
 
@@ -491,12 +512,12 @@ class UiModeManagerService extends IUiModeManager.Stub {
                     mLastBroadcastState = Intent.EXTRA_DOCK_STATE_CAR;
                     action = UiModeManager.ACTION_ENTER_CAR_MODE;
                 }
-            } else if (mDockState == Intent.EXTRA_DOCK_STATE_DESK) {
+            } else if (isDeskDockState(mDockState)) {
-                if (mLastBroadcastState != Intent.EXTRA_DOCK_STATE_DESK) {
+                if (!isDeskDockState(mLastBroadcastState)) {
                     if (oldAction != null) {
                         mContext.sendBroadcast(new Intent(oldAction));
                     }
-                    mLastBroadcastState = Intent.EXTRA_DOCK_STATE_DESK;
+                    mLastBroadcastState = mDockState;
                     action = UiModeManager.ACTION_ENTER_DESK_MODE;
                 }
             } else {
@@ -505,6 +526,12 @@ class UiModeManagerService extends IUiModeManager.Stub {
             }
 
             if (action != null) {
+                if (LOG) {
+                    Slog.v(TAG, String.format(
+                        "updateLocked: preparing broadcast: action=%s enable=0x%08x disable=0x%08x",
+                        action, enableFlags, disableFlags));
+                }
+
                 // Send the ordered broadcast; the result receiver will receive after all
                 // broadcasts have been sent. If any broadcast receiver changes the result
                 // code from the initial value of RESULT_OK, then the result receiver will
@@ -526,7 +553,7 @@ class UiModeManagerService extends IUiModeManager.Stub {
                     if ((enableFlags&UiModeManager.ENABLE_CAR_MODE_GO_CAR_HOME) != 0) {
                         homeIntent = buildHomeIntent(Intent.CATEGORY_CAR_DOCK);
                     }
-                } else if (mDockState == Intent.EXTRA_DOCK_STATE_DESK) {
+                } else if (isDeskDockState(mDockState)) {
                     if ((enableFlags&UiModeManager.ENABLE_CAR_MODE_GO_CAR_HOME) != 0) {
                         homeIntent = buildHomeIntent(Intent.CATEGORY_DESK_DOCK);
                     }
@@ -535,6 +562,12 @@ class UiModeManagerService extends IUiModeManager.Stub {
                         homeIntent = buildHomeIntent(Intent.CATEGORY_HOME);
                     }
                 }
+
+                if (LOG) {
+                    Slog.v(TAG, "updateLocked: null action, mDockState="
+                            + mDockState +", firing homeIntent: " + homeIntent);
+                }
+
                 if (homeIntent != null) {
                     try {
                         mContext.startActivity(homeIntent);