Initial checkin of AOSP Messaging app.

b/23110861

Change-Id: I11db999bd10656801e618f78ab2b2ef74136fff1

src/com/android/messaging/ui/AudioPlaybackProgressBar.java

@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2015 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.messaging.ui;
+
+import android.animation.ObjectAnimator;
+import android.animation.TimeAnimator;
+import android.animation.TimeAnimator.TimeListener;
+import android.content.Context;
+import android.graphics.drawable.ClipDrawable;
+import android.graphics.drawable.Drawable;
+import android.os.SystemClock;
+import android.util.AttributeSet;
+import android.view.Gravity;
+import android.widget.ProgressBar;
+
+/**
+ * Shows a styled progress bar that is synchronized with the playback state of an audio attachment.
+ */
+public class AudioPlaybackProgressBar extends ProgressBar implements PlaybackStateView {
+    private long mDurationInMillis;
+    private final TimeAnimator mUpdateAnimator;
+    private long mCumulativeTime = 0;
+    private long mCurrentPlayStartTime = 0;
+    private boolean mIncoming = false;
+
+    public AudioPlaybackProgressBar(final Context context, final AttributeSet attrs) {
+        super(context, attrs);
+
+        mUpdateAnimator = new TimeAnimator();
+        mUpdateAnimator.setRepeatCount(ObjectAnimator.INFINITE);
+        mUpdateAnimator.setTimeListener(new TimeListener() {
+            @Override
+            public void onTimeUpdate(final TimeAnimator animation, final long totalTime,
+                    final long deltaTime) {
+                int progress = 0;
+                if (mDurationInMillis > 0) {
+                    progress = (int) (((mCumulativeTime + SystemClock.elapsedRealtime() -
+                            mCurrentPlayStartTime) * 1.0f / mDurationInMillis) * 100);
+                    progress = Math.max(Math.min(progress, 100), 0);
+                }
+                setProgress(progress);
+            }
+        });
+        updateAppearance();
+    }
+
+    /**
+     * Sets the duration of the audio that's being played, in milliseconds.
+     */
+    public void setDuration(final long durationInMillis) {
+        mDurationInMillis = durationInMillis;
+    }
+
+    @Override
+    public void restart() {
+        reset();
+        resume();
+    }
+
+    @Override
+    public void reset() {
+        stopUpdateTicks();
+        setProgress(0);
+        mCumulativeTime = 0;
+        mCurrentPlayStartTime = 0;
+    }
+
+    @Override
+    public void resume() {
+        mCurrentPlayStartTime = SystemClock.elapsedRealtime();
+        startUpdateTicks();
+    }
+
+    @Override
+    public void pause() {
+        mCumulativeTime += SystemClock.elapsedRealtime() - mCurrentPlayStartTime;
+        stopUpdateTicks();
+    }
+
+    private void startUpdateTicks() {
+        if (!mUpdateAnimator.isStarted()) {
+            mUpdateAnimator.start();
+        }
+    }
+
+    private void stopUpdateTicks() {
+        if (mUpdateAnimator.isStarted()) {
+            mUpdateAnimator.end();
+        }
+    }
+
+    private void updateAppearance() {
+        final Drawable drawable =
+                ConversationDrawables.get().getAudioProgressDrawable(mIncoming);
+        final ClipDrawable clipDrawable = new ClipDrawable(drawable, Gravity.START,
+                ClipDrawable.HORIZONTAL);
+        setProgressDrawable(clipDrawable);
+        setBackground(ConversationDrawables.get()
+                .getAudioProgressBackgroundDrawable(mIncoming));
+    }
+
+    public void setVisualStyle(final boolean incoming) {
+        if (mIncoming != incoming) {
+            mIncoming = incoming;
+            updateAppearance();
+        }
+    }
+}