MediaRouter dialog

Add the dialog behavior for MediaRouteActionProvider/MediaRouteButton.

Still TODO:

* Switch audio icon based on source; speaker/bt/user

* Rig up volume slider

* Rig up item icons

* Rig up group button for groupable categories

* Make grouping work

Change-Id: I3f992516b184d5ae940ddb7bbb7f94ff58914589

Author: adamp

api/current.txt

@@ -3690,6 +3690,7 @@ package android.app {
     method public int getRouteTypes();
     method public void setExtendedSettingsClickListener(android.view.View.OnClickListener);
     method public void setRouteTypes(int);
+    method public void showDialog();
   }
 
   public class NativeActivity extends android.app.Activity implements android.view.InputQueue.Callback android.view.SurfaceHolder.Callback2 android.view.ViewTreeObserver.OnGlobalLayoutListener {
@@ -11575,11 +11576,13 @@ package android.media {
   }
 
   public static class MediaRouter.UserRouteInfo extends android.media.MediaRouter.RouteInfo {
+    method public java.lang.Object getTag();
     method public void setIconDrawable(android.graphics.drawable.Drawable);
     method public void setIconResource(int);
     method public void setName(java.lang.CharSequence);
     method public void setRemoteControlClient(android.media.RemoteControlClient);
     method public void setStatus(java.lang.CharSequence);
+    method public void setTag(java.lang.Object);
   }
 
   public class MediaScannerConnection implements android.content.ServiceConnection {

core/java/android/app/MediaRouteActionProvider.java

@@ -16,7 +16,10 @@
 
 package android.app;
 
+import com.android.internal.app.MediaRouteChooserDialogFragment;
+
 import android.content.Context;
+import android.content.ContextWrapper;
 import android.media.MediaRouter;
 import android.media.MediaRouter.RouteInfo;
 import android.util.Log;
@@ -83,10 +86,37 @@ public View onCreateActionView(MenuItem item) {
 
     @Override
     public boolean onPerformDefaultAction() {
-        // Show routing dialog
+        final FragmentManager fm = getActivity().getFragmentManager();
+        // See if one is already attached to this activity.
+        MediaRouteChooserDialogFragment dialogFragment =
+                (MediaRouteChooserDialogFragment) fm.findFragmentByTag(
+                MediaRouteChooserDialogFragment.FRAGMENT_TAG);
+        if (dialogFragment != null) {
+            Log.w(TAG, "onPerformDefaultAction(): Chooser dialog already showing!");
+            return false;
+        }
+
+        dialogFragment = new MediaRouteChooserDialogFragment();
+        dialogFragment.setExtendedSettingsClickListener(mExtendedSettingsListener);
+        dialogFragment.setRouteTypes(mRouteTypes);
+        dialogFragment.show(fm, MediaRouteChooserDialogFragment.FRAGMENT_TAG);
         return true;
     }
 
+    private Activity getActivity() {
+        // Gross way of unwrapping the Activity so we can get the FragmentManager
+        Context context = mContext;
+        while (context instanceof ContextWrapper && !(context instanceof Activity)) {
+            context = ((ContextWrapper) context).getBaseContext();
+        }
+        if (!(context instanceof Activity)) {
+            throw new IllegalStateException("The MediaRouteActionProvider's Context " +
+                    "is not an Activity.");
+        }
+
+        return (Activity) context;
+    }
+
     public void setExtendedSettingsClickListener(View.OnClickListener listener) {
         mExtendedSettingsListener = listener;
         if (mView != null) {

core/java/android/app/MediaRouteButton.java

@@ -17,8 +17,10 @@
 package android.app;
 
 import com.android.internal.R;
+import com.android.internal.app.MediaRouteChooserDialogFragment;
 
 import android.content.Context;
+import android.content.ContextWrapper;
 import android.content.res.TypedArray;
 import android.graphics.Canvas;
 import android.graphics.drawable.Drawable;
@@ -44,6 +46,7 @@ public class MediaRouteButton extends View {
     private int mMinHeight;
 
     private OnClickListener mExtendedSettingsClickListener;
+    private MediaRouteChooserDialogFragment mDialogFragment;
 
     private static final int[] ACTIVATED_STATE_SET = {
         R.attr.state_activated
@@ -112,7 +115,7 @@ public boolean performClick() {
                 }
             }
         } else {
-            Log.d(TAG, "TODO: Implement the dialog!");
+            showDialog();
         }
 
         return handled;
@@ -263,8 +266,51 @@ protected void onDraw(Canvas canvas) {
     }
 
     public void setExtendedSettingsClickListener(OnClickListener listener) {
-        // TODO: if dialog is already open, propagate so that it updates live.
         mExtendedSettingsClickListener = listener;
+        if (mDialogFragment != null) {
+            mDialogFragment.setExtendedSettingsClickListener(listener);
+        }
+    }
+
+    /**
+     * Asynchronously show the route chooser dialog.
+     * This will attach a {@link DialogFragment} to the containing Activity.
+     */
+    public void showDialog() {
+        final FragmentManager fm = getActivity().getFragmentManager();
+        if (mDialogFragment == null) {
+            // See if one is already attached to this activity.
+            mDialogFragment = (MediaRouteChooserDialogFragment) fm.findFragmentByTag(
+                    MediaRouteChooserDialogFragment.FRAGMENT_TAG);
+        }
+        if (mDialogFragment != null) {
+            Log.w(TAG, "showDialog(): Already showing!");
+            return;
+        }
+
+        mDialogFragment = new MediaRouteChooserDialogFragment();
+        mDialogFragment.setExtendedSettingsClickListener(mExtendedSettingsClickListener);
+        mDialogFragment.setLauncherListener(new MediaRouteChooserDialogFragment.LauncherListener() {
+            @Override
+            public void onDetached(MediaRouteChooserDialogFragment detachedFragment) {
+                mDialogFragment = null;
+            }
+        });
+        mDialogFragment.setRouteTypes(mRouteTypes);
+        mDialogFragment.show(fm, MediaRouteChooserDialogFragment.FRAGMENT_TAG);
+    }
+
+    private Activity getActivity() {
+        // Gross way of unwrapping the Activity so we can get the FragmentManager
+        Context context = getContext();
+        while (context instanceof ContextWrapper && !(context instanceof Activity)) {
+            context = ((ContextWrapper) context).getBaseContext();
+        }
+        if (!(context instanceof Activity)) {
+            throw new IllegalStateException("The MediaRouteButton's Context is not an Activity.");
+        }
+
+        return (Activity) context;
     }
 
     private class MediaRouteCallback extends MediaRouter.SimpleCallback {