Revert "Remove dock home support."

This reverts commit 7c135205f2f4c192299ad0215276e9e481bccaa5.

Conflicts:

	policy/src/com/android/internal/policy/impl/PhoneWindowManager.java

Change-Id: I9b2c4eebaab87a669b42681e70ec5324dadf7f6d

1 files changed, 86 insertions, 2 deletions

diff --git a/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java b/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
index 0504b6d..635d1ec 100644
--- a/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
+++ b/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
@@ -21,6 +21,7 @@ import android.app.ActivityManager;
 import android.app.ActivityManager.RunningAppProcessInfo;
 import android.app.ActivityManagerNative;
 import android.app.IActivityManager;
+import android.app.IUiModeManager;
 import android.app.ProgressDialog;
 import android.app.SearchManager;
 import android.app.UiModeManager;
@@ -188,6 +189,11 @@ public class PhoneWindowManager implements WindowManagerPolicy {
     static final boolean SHOW_STARTING_ANIMATIONS = true;
     static final boolean SHOW_PROCESSES_ON_ALT_MENU = false;
 
+    // Whether to allow dock apps with METADATA_DOCK_HOME to temporarily take over the Home key.
+    // No longer recommended for desk docks; still useful in car docks.
+    static final boolean ENABLE_CAR_DOCK_HOME_CAPTURE = true;
+    static final boolean ENABLE_DESK_DOCK_HOME_CAPTURE = false;
+
     static final int LONG_PRESS_POWER_NOTHING = 0;
     static final int LONG_PRESS_POWER_GLOBAL_ACTIONS = 1;
     static final int LONG_PRESS_POWER_SHUT_OFF = 2;
@@ -333,6 +339,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
     boolean mSystemBooted;
     boolean mHdmiPlugged;
     boolean mWifiDisplayConnected;
+    int mUiMode;
     int mDockMode = Intent.EXTRA_DOCK_STATE_UNDOCKED;
     int mLidOpenRotation;
     boolean mHasRemovableLid;
@@ -1112,6 +1119,8 @@ public class PhoneWindowManager implements WindowManagerPolicy {
         mSettingsObserver.observe();
         mShortcutManager = new ShortcutManager(context, mHandler);
         mShortcutManager.observe();
+        mUiMode = context.getResources().getInteger(
+                com.android.internal.R.integer.config_defaultUiModeType);
         mHomeIntent =  new Intent(Intent.ACTION_MAIN, null);
         mHomeIntent.addCategory(Intent.CATEGORY_HOME);
         mHomeIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
@@ -4253,6 +4262,13 @@ public class PhoneWindowManager implements WindowManagerPolicy {
             if (Intent.ACTION_DOCK_EVENT.equals(intent.getAction())) {
                 mDockMode = intent.getIntExtra(Intent.EXTRA_DOCK_STATE,
                         Intent.EXTRA_DOCK_STATE_UNDOCKED);
+            } else {
+                try {
+                    IUiModeManager uiModeService = IUiModeManager.Stub.asInterface(
+                            ServiceManager.getService(Context.UI_MODE_SERVICE));
+                    mUiMode = uiModeService.getCurrentModeType();
+                } catch (RemoteException e) {
+                }
             }
             updateRotation(true);
             updateOrientationListenerLp();
@@ -4915,8 +4931,63 @@ public class PhoneWindowManager implements WindowManagerPolicy {
         }
     }
 
+    /**
+     * Return an Intent to launch the currently active dock app as home.  Returns
+     * null if the standard home should be launched, which is the case if any of the following is
+     * true:
+     * <ul>
+     *  <li>The device is not in either car mode or desk mode
+     *  <li>The device is in car mode but ENABLE_CAR_DOCK_HOME_CAPTURE is false
+     *  <li>The device is in desk mode but ENABLE_DESK_DOCK_HOME_CAPTURE is false
+     *  <li>The device is in car mode but there's no CAR_DOCK app with METADATA_DOCK_HOME
+     *  <li>The device is in desk mode but there's no DESK_DOCK app with METADATA_DOCK_HOME
+     * </ul>
+     * @return
+     */
+    Intent createHomeDockIntent() {
+        Intent intent = null;
+
+        // What home does is based on the mode, not the dock state.  That
+        // is, when in car mode you should be taken to car home regardless
+        // of whether we are actually in a car dock.
+        if (mUiMode == Configuration.UI_MODE_TYPE_CAR) {
+            if (ENABLE_CAR_DOCK_HOME_CAPTURE) {
+                intent = mCarDockIntent;
+            }
+        } else if (mUiMode == Configuration.UI_MODE_TYPE_DESK) {
+            if (ENABLE_DESK_DOCK_HOME_CAPTURE) {
+                intent = mDeskDockIntent;
+            }
+        }
+
+        if (intent == null) {
+            return null;
+        }
+
+        ActivityInfo ai = intent.resolveActivityInfo(
+                mContext.getPackageManager(), PackageManager.GET_META_DATA);
+        if (ai == null) {
+            return null;
+        }
+
+        if (ai.metaData != null && ai.metaData.getBoolean(Intent.METADATA_DOCK_HOME)) {
+            intent = new Intent(intent);
+            intent.setClassName(ai.packageName, ai.name);
+            return intent;
+        }
+
+        return null;
+    }
+
     void startDockOrHome() {
-        // We don't have dock home anymore. Home is home. If you lived here, you'd be home by now.
+        Intent dock = createHomeDockIntent();
+        if (dock != null) {
+            try {
+                mContext.startActivity(dock);
+                return;
+            } catch (ActivityNotFoundException e) {
+            }
+        }
         mContext.startActivityAsUser(mHomeIntent, UserHandle.CURRENT);
     }
     
@@ -4943,6 +5014,18 @@ public class PhoneWindowManager implements WindowManagerPolicy {
                 } else {
                     ActivityManagerNative.getDefault().stopAppSwitches();
                     sendCloseSystemWindows();
+                    Intent dock = createHomeDockIntent();
+                    if (dock != null) {
+                        int result = ActivityManagerNative.getDefault()
+                                .startActivityAsUser(null, dock,
+                                        dock.resolveTypeIfNeeded(mContext.getContentResolver()),
+                                        null, null, 0,
+                                        ActivityManager.START_FLAG_ONLY_IF_NEEDED,
+                                        null, null, null, UserHandle.USER_CURRENT);
+                        if (result == ActivityManager.START_RETURN_INTENT_TO_CALLER) {
+                            return false;
+                        }
+                    }
                 }
                 int result = ActivityManagerNative.getDefault()
                         .startActivityAsUser(null, mHomeIntent,
@@ -5153,7 +5236,8 @@ public class PhoneWindowManager implements WindowManagerPolicy {
             pw.print(prefix); pw.print("mLastFocusNeedsMenu=");
                     pw.println(mLastFocusNeedsMenu);
         }
-        pw.print(prefix); pw.print("mDockMode="); pw.print(mDockMode);
+        pw.print(prefix); pw.print("mUiMode="); pw.print(mUiMode);
+                pw.print(" mDockMode="); pw.print(mDockMode);
                 pw.print(" mCarDockRotation="); pw.print(mCarDockRotation);
                 pw.print(" mDeskDockRotation="); pw.println(mDeskDockRotation);
         pw.print(prefix); pw.print("mUserRotationMode="); pw.print(mUserRotationMode);