1 files changed, 159 insertions, 0 deletions
diff --git a/InCallUI/src/com/android/incallui/CircularRevealFragment.java b/InCallUI/src/com/android/incallui/CircularRevealFragment.java
new file mode 100644
index 000000000..c2821792b
--- /dev/null
+++ b/InCallUI/src/com/android/incallui/CircularRevealFragment.java
@@ -0,0 +1,159 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.incallui;
+
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+import android.app.Activity;
+import android.app.Fragment;
+import android.app.FragmentManager;
+import android.graphics.Outline;
+import android.graphics.Point;
+import android.os.Bundle;
+import android.view.Display;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewAnimationUtils;
+import android.view.ViewGroup;
+import android.view.ViewOutlineProvider;
+import android.view.ViewTreeObserver;
+import android.view.ViewTreeObserver.OnPreDrawListener;
+
+import com.android.contacts.common.util.MaterialColorMapUtils.MaterialPalette;
+
+public class CircularRevealFragment extends Fragment {
+    static final String TAG = "CircularRevealFragment";
+
+    private Point mTouchPoint;
+    private OnCircularRevealCompleteListener mListener;
+    private boolean mAnimationStarted;
+
+    interface OnCircularRevealCompleteListener {
+        public void onCircularRevealComplete(FragmentManager fm);
+    }
+
+    public static void startCircularReveal(FragmentManager fm, Point touchPoint,
+            OnCircularRevealCompleteListener listener) {
+        fm.beginTransaction().add(R.id.main, new CircularRevealFragment(touchPoint, listener), TAG)
+                .commitAllowingStateLoss();
+    }
+
+    public static void endCircularReveal(FragmentManager fm) {
+        final Fragment fragment = fm.findFragmentByTag(TAG);
+        if (fragment != null) {
+            fm.beginTransaction().remove(fragment).commitAllowingStateLoss();
+        }
+    }
+
+    /**
+     * Empty constructor used only by the {@link FragmentManager}.
+     */
+    public CircularRevealFragment() {}
+
+    public CircularRevealFragment(Point touchPoint, OnCircularRevealCompleteListener listener) {
+        mTouchPoint = touchPoint;
+        mListener = listener;
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        if (!mAnimationStarted) {
+            // Only run the animation once for each instance of the fragment
+            startOutgoingAnimation(InCallPresenter.getInstance().getThemeColors());
+        }
+        mAnimationStarted = true;
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+            Bundle savedInstanceState) {
+        return inflater.inflate(R.layout.outgoing_call_animation, container, false);
+    }
+
+    public void startOutgoingAnimation(MaterialPalette palette) {
+        final Activity activity = getActivity();
+        if (activity == null) {
+            Log.w(this, "Asked to do outgoing call animation when not attached");
+            return;
+        }
+
+        final View view  = activity.getWindow().getDecorView();
+
+        // The circle starts from an initial size of 0 so clip it such that it is invisible.
+        // Otherwise the first frame is drawn with a fully opaque screen which causes jank. When
+        // the animation later starts, this clip will be clobbered by the circular reveal clip.
+        // See ViewAnimationUtils.createCircularReveal.
+        view.setOutlineProvider(new ViewOutlineProvider() {
+            @Override
+            public void getOutline(View view, Outline outline) {
+                // Using (0, 0, 0, 0) will not work since the outline will simply be treated as
+                // an empty outline.
+                outline.setOval(-1, -1, 0, 0);
+            }
+        });
+        view.setClipToOutline(true);
+
+        if (palette != null) {
+            view.findViewById(R.id.outgoing_call_animation_circle).setBackgroundColor(
+                    palette.mPrimaryColor);
+            activity.getWindow().setStatusBarColor(palette.mSecondaryColor);
+        }
+
+        view.getViewTreeObserver().addOnPreDrawListener(new OnPreDrawListener() {
+            @Override
+            public boolean onPreDraw() {
+                final ViewTreeObserver vto = view.getViewTreeObserver();
+                if (vto.isAlive()) {
+                    vto.removeOnPreDrawListener(this);
+                }
+                final Animator animator = getRevealAnimator(mTouchPoint);
+                animator.addListener(new AnimatorListenerAdapter() {
+                    @Override
+                    public void onAnimationEnd(Animator animation) {
+                        view.setClipToOutline(false);
+                        if (mListener != null) {
+                            mListener.onCircularRevealComplete(getFragmentManager());
+                        }
+                    }
+                });
+                animator.start();
+                return false;
+            }
+        });
+    }
+
+    private Animator getRevealAnimator(Point touchPoint) {
+        final Activity activity = getActivity();
+        final View view  = activity.getWindow().getDecorView();
+        final Display display = activity.getWindowManager().getDefaultDisplay();
+        final Point size = new Point();
+        display.getSize(size);
+
+        int startX = size.x / 2;
+        int startY = size.y / 2;
+        if (touchPoint != null) {
+            startX = touchPoint.x;
+            startY = touchPoint.y;
+        }
+
+        final Animator valueAnimator = ViewAnimationUtils.createCircularReveal(view,
+                startX, startY, 0, Math.max(size.x, size.y));
+        valueAnimator.setDuration(getResources().getInteger(R.integer.reveal_animation_duration));
+        return valueAnimator;
+    }
+}