Add Landscape support to Eleven

This adds most of the support. There is a bug around the album art
not loading on rotation - but this patch covers pretty much every
other case

Change-Id: If9033b0323beab8837493d289dcf77b76d1ea8c9

5 files changed, 93 insertions, 30 deletions

diff --git a/src/com/cyanogenmod/eleven/ui/activities/HomeActivity.java b/src/com/cyanogenmod/eleven/ui/activities/HomeActivity.java
index f3a796a..ded1950 100644
--- a/src/com/cyanogenmod/eleven/ui/activities/HomeActivity.java
+++ b/src/com/cyanogenmod/eleven/ui/activities/HomeActivity.java
@@ -50,7 +50,8 @@ import com.cyanogenmod.eleven.utils.BitmapWithColors;
 import com.cyanogenmod.eleven.utils.MusicUtils;
 import com.cyanogenmod.eleven.utils.NavUtils;
 
-public class HomeActivity extends SlidingPanelActivity {
+public class HomeActivity extends SlidingPanelActivity implements
+        FragmentManager.OnBackStackChangedListener {
     private static final String TAG = "HomeActivity";
     private static final String ACTION_PREFIX = HomeActivity.class.getName();
     public static final String ACTION_VIEW_ARTIST_DETAILS = ACTION_PREFIX + ".view.ArtistDetails";
@@ -59,6 +60,8 @@ public class HomeActivity extends SlidingPanelActivity {
     public static final String ACTION_VIEW_SMART_PLAYLIST = ACTION_PREFIX + ".view.SmartPlaylist";
     public static final String EXTRA_BROWSE_PAGE_IDX = "BrowsePageIndex";
 
+    private static final String STATE_KEY_BASE_FRAGMENT = "BaseFragment";
+
     private static final int NEW_PHOTO = 1;
     public static final int EQUALIZER = 2;
 
@@ -73,10 +76,10 @@ public class HomeActivity extends SlidingPanelActivity {
      */
     protected boolean mTopLevelActivity = false;
 
-
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+
         // if we've been launched by an intent, parse it
         Intent launchIntent = getIntent();
         boolean intentHandled = false;
@@ -85,42 +88,46 @@ public class HomeActivity extends SlidingPanelActivity {
         }
 
         // if the intent didn't cause us to load a fragment, load the music browse one
-        if (!mLoadedBaseFragment) {
+        if (savedInstanceState == null && !mLoadedBaseFragment) {
             final MusicBrowserPhoneFragment fragment = new MusicBrowserPhoneFragment();
             if (launchIntent != null) {
                 fragment.setDefaultPageIdx(launchIntent.getIntExtra(EXTRA_BROWSE_PAGE_IDX,
                         MusicBrowserPhoneFragment.INVALID_PAGE_INDEX));
             }
             getSupportFragmentManager().beginTransaction()
-                    .replace(R.id.activity_base_content, fragment).commit();
+                    .replace(R.id.activity_base_content, fragment)
+                    .commit();
 
             mLoadedBaseFragment = true;
             mTopLevelActivity = true;
         }
 
-        getSupportFragmentManager().addOnBackStackChangedListener(
-                new FragmentManager.OnBackStackChangedListener() {
-            @Override
-            public void onBackStackChanged() {
-                Fragment topFragment = getTopFragment();
-                if (topFragment != null) {
-                    // the fragment that has come back to the top should now have its menu items
-                    // added to the action bar -- so tell it to make it menu items visible
-                    topFragment.setMenuVisibility(true);
-                    ISetupActionBar setupActionBar = (ISetupActionBar) topFragment;
-                    setupActionBar.setupActionBar();
-
-                    getActionBar().setDisplayHomeAsUpEnabled(
-                            !(topFragment instanceof MusicBrowserPhoneFragment));
-                }
-            }
-        });
+        getSupportFragmentManager().addOnBackStackChangedListener(this);
+
+        // if we are resuming from a saved instance state
+        if (savedInstanceState != null) {
+            // track which fragments are loaded and if this is the top level activity
+            mTopLevelActivity = savedInstanceState.getBoolean(STATE_KEY_BASE_FRAGMENT);
+            mLoadedBaseFragment = mTopLevelActivity;
+
+            // update the action bar based on the top most fragment
+            onBackStackChanged();
+
+            // figure which panel we are on and update the status bar
+            mBrowsePanelActive = (getCurrentPanel() == Panel.Browse);
+            updateStatusBarColor();
+        }
 
         // if intent wasn't UI related, process it as a audio playback request
         if (!intentHandled) {
             handlePlaybackIntent(launchIntent);
         }
+    }
 
+    @Override
+    protected void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+        outState.putBoolean(STATE_KEY_BASE_FRAGMENT, mTopLevelActivity);
     }
 
     public Fragment getTopFragment() {
@@ -427,4 +434,18 @@ public class HomeActivity extends SlidingPanelActivity {
         return id;
     }
 
+    @Override
+    public void onBackStackChanged() {
+        Fragment topFragment = getTopFragment();
+        if (topFragment != null) {
+            // the fragment that has come back to the top should now have its menu items
+            // added to the action bar -- so tell it to make it menu items visible
+            topFragment.setMenuVisibility(true);
+            ISetupActionBar setupActionBar = (ISetupActionBar) topFragment;
+            setupActionBar.setupActionBar();
+
+            getActionBar().setDisplayHomeAsUpEnabled(
+                    !(topFragment instanceof MusicBrowserPhoneFragment));
+        }
+    }
 }
diff --git a/src/com/cyanogenmod/eleven/ui/activities/SlidingPanelActivity.java b/src/com/cyanogenmod/eleven/ui/activities/SlidingPanelActivity.java
index 2a3665d..ace0947 100644
--- a/src/com/cyanogenmod/eleven/ui/activities/SlidingPanelActivity.java
+++ b/src/com/cyanogenmod/eleven/ui/activities/SlidingPanelActivity.java
@@ -52,6 +52,8 @@ public abstract class SlidingPanelActivity extends BaseActivity {
         public void onFinishSlide(SlidingPanelActivity.Panel visiblePanel);
     }
 
+    private static final String STATE_KEY_CURRENT_PANEL = "CurrentPanel";
+
     private SlidingUpPanelLayout mFirstPanel;
     private SlidingUpPanelLayout mSecondPanel;
     protected Panel mTargetNavigatePanel;
@@ -106,6 +108,26 @@ public abstract class SlidingPanelActivity extends BaseActivity {
 
         // get the blur scrim image
         mBlurScrimImage = (BlurScrimImage)findViewById(R.id.blurScrimImage);
+
+        if (savedInstanceState != null) {
+            int panelIndex = savedInstanceState.getInt(STATE_KEY_CURRENT_PANEL,
+                    Panel.Browse.ordinal());
+            Panel targetPanel = Panel.values()[panelIndex];
+
+            showPanel(targetPanel);
+            mTargetNavigatePanel = Panel.None;
+
+            if (targetPanel == Panel.Queue) {
+                mFirstPanel.setSlidingEnabled(false);
+            }
+        }
+    }
+
+    @Override
+    protected void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+
+        outState.putInt(STATE_KEY_CURRENT_PANEL, getCurrentPanel().ordinal());
     }
 
     private void setupFirstPanel() {
@@ -253,7 +275,7 @@ public abstract class SlidingPanelActivity extends BaseActivity {
         }
     }
 
-    protected Panel getCurrentPanel() {
+    public Panel getCurrentPanel() {
         if (mSecondPanel.isPanelExpanded()) {
             return Panel.Queue;
         } else if (mFirstPanel.isPanelExpanded()) {
diff --git a/src/com/cyanogenmod/eleven/ui/fragments/AudioPlayerFragment.java b/src/com/cyanogenmod/eleven/ui/fragments/AudioPlayerFragment.java
index 877cda4..2e102d4 100644
--- a/src/com/cyanogenmod/eleven/ui/fragments/AudioPlayerFragment.java
+++ b/src/com/cyanogenmod/eleven/ui/fragments/AudioPlayerFragment.java
@@ -180,6 +180,9 @@ public class AudioPlayerFragment extends Fragment implements ServiceConnection,
 
         // add a listener for the sliding
         ((SlidingPanelActivity)getActivity()).addSlidingPanelListener(this);
+
+        // check equalizer view
+        checkEqualizerView();
     }
 
     /**
@@ -297,7 +300,11 @@ public class AudioPlayerFragment extends Fragment implements ServiceConnection,
         headerBar.setOutlineProvider(new ViewOutlineProvider() {
             @Override
             public void getOutline(View view, Outline outline) {
-                outline.setRect(0, -bottomActionBarHeight, view.getWidth(), view.getHeight());
+                // since we only want the top and bottom shadows, pad the horizontal width
+                // to hide the shadows. Can't seem to find a better way to do this
+                int padWidth = (int)(0.2f * view.getWidth());
+                outline.setRect(-padWidth, -bottomActionBarHeight, view.getWidth() + padWidth,
+                        view.getHeight());
             }
         });
 
@@ -742,6 +749,14 @@ public class AudioPlayerFragment extends Fragment implements ServiceConnection,
 
     @Override
     public void onFinishSlide(SlidingPanelActivity.Panel visiblePanel) {
+        checkEqualizerView(visiblePanel);
+    }
+
+    private void checkEqualizerView() {
+        checkEqualizerView(((HomeActivity)getActivity()).getCurrentPanel());
+    }
+
+    private void checkEqualizerView(SlidingPanelActivity.Panel visiblePanel) {
         if (visiblePanel == SlidingPanelActivity.Panel.MusicPlayer) {
             mEqualizerView.setPanelVisible(true);
         }
diff --git a/src/com/cyanogenmod/eleven/ui/fragments/BaseFragment.java b/src/com/cyanogenmod/eleven/ui/fragments/BaseFragment.java
index 7bbaf14..5a5885a 100644
--- a/src/com/cyanogenmod/eleven/ui/fragments/BaseFragment.java
+++ b/src/com/cyanogenmod/eleven/ui/fragments/BaseFragment.java
@@ -39,6 +39,12 @@ public abstract class BaseFragment extends Fragment implements MusicStateListene
     }
 
     @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setRetainInstance(true);
+    }
+
+    @Override
     public void setupActionBar() {
         getContainingActivity().setupActionBar(getTitle());
         getContainingActivity().setActionBarAlpha(255);
diff --git a/src/com/cyanogenmod/eleven/ui/fragments/phone/MusicBrowserPhoneFragment.java b/src/com/cyanogenmod/eleven/ui/fragments/phone/MusicBrowserPhoneFragment.java
index 1317c4b..376841e 100644
--- a/src/com/cyanogenmod/eleven/ui/fragments/phone/MusicBrowserPhoneFragment.java
+++ b/src/com/cyanogenmod/eleven/ui/fragments/phone/MusicBrowserPhoneFragment.java
@@ -95,13 +95,12 @@ public class MusicBrowserPhoneFragment extends BaseFragment {
     protected void onViewCreated() {
         super.onViewCreated();
 
-        if (mPagerAdapter == null) {
-            // Initialize the adapter
-            mPagerAdapter = new PagerAdapter(getActivity(), getChildFragmentManager());
-            final MusicFragments[] mFragments = MusicFragments.values();
-            for (final MusicFragments mFragment : mFragments) {
-                mPagerAdapter.add(mFragment.getFragmentClass(), null);
-            }
+        // create the adapter - on rotation the view gets created again and we need to recreate
+        // the child fragments (fragments of fragments cannot be retained)
+        mPagerAdapter = new PagerAdapter(getActivity(), getChildFragmentManager());
+        final MusicFragments[] mFragments = MusicFragments.values();
+        for (final MusicFragments mFragment : mFragments) {
+            mPagerAdapter.add(mFragment.getFragmentClass(), null);
         }
 
         // Initialize the ViewPager