Upstream Chrome for Android Cast.

chrome/android/java/src/org/chromium/chrome/browser/media/remote/ChromeMediaRouteDialogFactory.java

Index: chrome/android/java/src/org/chromium/chrome/browser/media/remote/ChromeMediaRouteDialogFactory.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/media/remote/ChromeMediaRouteDialogFactory.java b/chrome/android/java/src/org/chromium/chrome/browser/media/remote/ChromeMediaRouteDialogFactory.java
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@@ -0,0 +1,96 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.chrome.browser.media.remote;
+
+import android.annotation.TargetApi;
+import android.app.Activity;
+import android.app.Dialog;
+import android.content.Context;
+import android.os.Build;
+import android.os.Bundle;
+import android.support.v7.app.MediaRouteChooserDialog;
+import android.support.v7.app.MediaRouteChooserDialogFragment;
+import android.support.v7.app.MediaRouteControllerDialog;
+import android.support.v7.app.MediaRouteControllerDialogFragment;
+import android.support.v7.app.MediaRouteDialogFactory;
+import android.view.View;
+import android.widget.FrameLayout;
+
+/**
+ * The Chrome implementation of the dialog factory so custom behavior can
+ * be injected for the disconnect button.
+ */
+public class ChromeMediaRouteDialogFactory extends MediaRouteDialogFactory {
+
+    @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
+    private static class SystemVisibilitySaver {
+        private int mSystemVisibility;
+        private boolean mRestoreSystemVisibility;
+
+        void saveSystemVisibility(Activity activity) {
+            // The Android APIs don't exist on old versions.
+            // TODO(aberent) this can go once the minSdkVersion has been updated in the manifests.
+            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) return;
+            // If we are in fullscreen we may have also have hidden the system UI. This
+            // is overridden when we display the dialog. Save the system UI visibility
+            // state so we can restore it.
+            FrameLayout decor = (FrameLayout) activity.getWindow().getDecorView();
+            mSystemVisibility = decor.getSystemUiVisibility();
+            mRestoreSystemVisibility = (
+                    (mSystemVisibility & View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN) != 0);
+        }
+
+        void restoreSystemVisibility(Activity activity) {
+            if (mRestoreSystemVisibility) {
+                FrameLayout decor = (FrameLayout) activity.getWindow().getDecorView();
+                // In some cases we come out of fullscreen before closing this dialog. In these
+                // cases we don't want to restore the system UI visibility state.
+                int systemVisibility = decor.getSystemUiVisibility();
+                if ((systemVisibility & View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN) != 0) {
+                    decor.setSystemUiVisibility(mSystemVisibility);
+                }
+            }
+        }
+    }
+
+    @Override
+    public MediaRouteControllerDialogFragment onCreateControllerDialogFragment() {
+        return new MediaRouteControllerDialogFragment() {
+            final SystemVisibilitySaver mVisibilitySaver = new SystemVisibilitySaver();
+
+            @Override
+            public Dialog onCreateDialog(Bundle saved) {
+                mVisibilitySaver.saveSystemVisibility(getActivity());
+                return new MediaRouteControllerDialog(getActivity());
+            }
+
+            @Override
+            public void onStop() {
+                super.onStop();
+                mVisibilitySaver.restoreSystemVisibility(getActivity());
+            }
+        };
+    }
+
+    @Override
+    public MediaRouteChooserDialogFragment onCreateChooserDialogFragment() {
+        return new MediaRouteChooserDialogFragment() {
+            final SystemVisibilitySaver mVisibilitySaver = new SystemVisibilitySaver();
+
+            @Override
+            public MediaRouteChooserDialog onCreateChooserDialog(
+                    Context context, Bundle savedInstanceState) {
+                mVisibilitySaver.saveSystemVisibility(getActivity());
+                return new MediaRouteChooserDialog(context);
+            }
+
+            @Override
+            public void onStop() {
+                super.onStop();
+                mVisibilitySaver.restoreSystemVisibility(getActivity());
+            }
+        };
+    }
+}