Use Model-View-Controller pattern on video module
Change-Id: Id673efd1da9f53d4f74aab880504850152d1edfa
diff --git a/src/com/android/camera/VideoUI.java b/src/com/android/camera/VideoUI.java
new file mode 100644
index 0000000..63c1909
--- /dev/null
+++ b/src/com/android/camera/VideoUI.java
@@ -0,0 +1,510 @@
+/*
+ * Copyright (C) 2013 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.camera;
+
+import android.graphics.Bitmap;
+import android.hardware.Camera.Parameters;
+import android.util.Log;
+import android.view.Gravity;
+import android.view.MotionEvent;
+import android.view.SurfaceHolder;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.ViewGroup;
+import android.widget.FrameLayout;
+import android.widget.FrameLayout.LayoutParams;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+
+import com.android.camera.CameraPreference.OnPreferenceChangedListener;
+import com.android.camera.ui.AbstractSettingPopup;
+import com.android.camera.ui.PieRenderer;
+import com.android.camera.ui.PreviewSurfaceView;
+import com.android.camera.ui.RenderOverlay;
+import com.android.camera.ui.RotateLayout;
+import com.android.camera.ui.ZoomRenderer;
+import com.android.gallery3d.R;
+import com.android.gallery3d.common.ApiHelper;
+
+import java.util.List;
+
+public class VideoUI implements SurfaceHolder.Callback, PieRenderer.PieListener,
+ PreviewGestures.SingleTapListener {
+ private final static String TAG = "CAM_VideoUI";
+ // module fields
+ private CameraActivity mActivity;
+ private View mRootView;
+ private PreviewFrameLayout mPreviewFrameLayout;
+ private boolean mSurfaceViewReady;
+ private SurfaceHolder.Callback mSurfaceViewCallback;
+ private PreviewSurfaceView mPreviewSurfaceView;
+ // An review image having same size as preview. It is displayed when
+ // recording is stopped in capture intent.
+ private ImageView mReviewImage;
+ private View mReviewCancelButton;
+ private View mReviewDoneButton;
+ private View mReviewPlayButton;
+ private ShutterButton mShutterButton;
+ private TextView mRecordingTimeView;
+ private LinearLayout mLabelsLinearLayout;
+ private View mTimeLapseLabel;
+ private RenderOverlay mRenderOverlay;
+ private PieRenderer mPieRenderer;
+ private VideoMenu mVideoMenu;
+ private AbstractSettingPopup mPopup;
+ private ZoomRenderer mZoomRenderer;
+ private PreviewGestures mGestures;
+ private View mMenu;
+ private View mBlocker;
+ private View mOnScreenIndicators;
+ private ImageView mFlashIndicator;
+ private RotateLayout mRecordingTimeRect;
+ private VideoController mController;
+ private int mZoomMax;
+ private List<Integer> mZoomRatios;
+
+ public VideoUI(CameraActivity activity, VideoController controller, View parent) {
+ mActivity = activity;
+ mController = controller;
+ mRootView = parent;
+ mActivity.getLayoutInflater().inflate(R.layout.video_module, (ViewGroup) mRootView, true);
+ mPreviewSurfaceView = (PreviewSurfaceView) mRootView
+ .findViewById(R.id.preview_surface_view);
+ initializeMiscControls();
+ initializeControlByIntent();
+ initializeOverlay();
+ }
+
+ private void initializeControlByIntent() {
+ mBlocker = mActivity.findViewById(R.id.blocker);
+ mMenu = mActivity.findViewById(R.id.menu);
+ mMenu.setOnClickListener(new OnClickListener() {
+ @Override
+ public void onClick(View v) {
+ if (mPieRenderer != null) {
+ mPieRenderer.showInCenter();
+ }
+ }
+ });
+ mOnScreenIndicators = mActivity.findViewById(R.id.on_screen_indicators);
+ mFlashIndicator = (ImageView) mActivity.findViewById(R.id.menu_flash_indicator);
+ if (mController.isVideoCaptureIntent()) {
+ mActivity.hideSwitcher();
+ ViewGroup cameraControls = (ViewGroup) mActivity.findViewById(R.id.camera_controls);
+ mActivity.getLayoutInflater().inflate(R.layout.review_module_control, cameraControls);
+ // Cannot use RotateImageView for "done" and "cancel" button because
+ // the tablet layout uses RotateLayout, which cannot be cast to
+ // RotateImageView.
+ mReviewDoneButton = mActivity.findViewById(R.id.btn_done);
+ mReviewCancelButton = mActivity.findViewById(R.id.btn_cancel);
+ mReviewPlayButton = mActivity.findViewById(R.id.btn_play);
+ mReviewCancelButton.setVisibility(View.VISIBLE);
+ mReviewDoneButton.setOnClickListener(new OnClickListener() {
+ @Override
+ public void onClick(View v) {
+ mController.onReviewDoneClicked(v);
+ }
+ });
+ mReviewCancelButton.setOnClickListener(new OnClickListener() {
+ @Override
+ public void onClick(View v) {
+ mController.onReviewCancelClicked(v);
+ }
+ });
+ mReviewPlayButton.setOnClickListener(new OnClickListener() {
+ @Override
+ public void onClick(View v) {
+ mController.onReviewPlayClicked(v);
+ }
+ });
+ }
+ }
+
+ public boolean collapseCameraControls() {
+ boolean ret = false;
+ if (mPopup != null) {
+ dismissPopup(false);
+ ret = true;
+ }
+ return ret;
+ }
+
+ public boolean removeTopLevelPopup() {
+ if (mPopup != null) {
+ dismissPopup(true);
+ return true;
+ }
+ return false;
+ }
+
+ public void enableCameraControls(boolean enable) {
+ if (mGestures != null) {
+ mGestures.setZoomOnly(!enable);
+ }
+ if (mPieRenderer != null && mPieRenderer.showsItems()) {
+ mPieRenderer.hide();
+ }
+ }
+
+ public void overrideSettings(final String... keyvalues) {
+ mVideoMenu.overrideSettings(keyvalues);
+ }
+
+ public View getPreview() {
+ return mPreviewFrameLayout;
+ }
+
+ public void setOrientationIndicator(int orientation, boolean animation) {
+ if (mGestures != null) {
+ mGestures.setOrientation(orientation);
+ }
+ // We change the orientation of the linearlayout only for phone UI
+ // because when in portrait the width is not enough.
+ if (mLabelsLinearLayout != null) {
+ if (((orientation / 90) & 1) == 0) {
+ mLabelsLinearLayout.setOrientation(LinearLayout.VERTICAL);
+ } else {
+ mLabelsLinearLayout.setOrientation(LinearLayout.HORIZONTAL);
+ }
+ }
+ mRecordingTimeRect.setOrientation(0, animation);
+ }
+
+ public SurfaceHolder getSurfaceHolder() {
+ return mPreviewSurfaceView.getHolder();
+ }
+
+ public void hideSurfaceView() {
+ mPreviewSurfaceView.setVisibility(View.GONE);
+ }
+
+ public void showSurfaceView() {
+ mPreviewSurfaceView.setVisibility(View.VISIBLE);
+ }
+
+ private void initializeOverlay() {
+ mRenderOverlay = (RenderOverlay) mRootView.findViewById(R.id.render_overlay);
+ if (mPieRenderer == null) {
+ mPieRenderer = new PieRenderer(mActivity);
+ mVideoMenu = new VideoMenu(mActivity, this, mPieRenderer);
+ mPieRenderer.setPieListener(this);
+ }
+ mRenderOverlay.addRenderer(mPieRenderer);
+ if (mZoomRenderer == null) {
+ mZoomRenderer = new ZoomRenderer(mActivity);
+ }
+ mRenderOverlay.addRenderer(mZoomRenderer);
+ if (mGestures == null) {
+ mGestures = new PreviewGestures(mActivity, this, mZoomRenderer, mPieRenderer);
+ }
+ mGestures.setRenderOverlay(mRenderOverlay);
+ mGestures.clearTouchReceivers();
+ mGestures.addTouchReceiver(mMenu);
+ mGestures.addTouchReceiver(mBlocker);
+ if (mController.isVideoCaptureIntent()) {
+ if (mReviewCancelButton != null) {
+ mGestures.addTouchReceiver(mReviewCancelButton);
+ }
+ if (mReviewDoneButton != null) {
+ mGestures.addTouchReceiver(mReviewDoneButton);
+ }
+ if (mReviewPlayButton != null) {
+ mGestures.addTouchReceiver(mReviewPlayButton);
+ }
+ }
+ }
+
+ public void setPrefChangedListener(OnPreferenceChangedListener listener) {
+ mVideoMenu.setListener(listener);
+ }
+
+ private void initializeMiscControls() {
+ mPreviewFrameLayout = (PreviewFrameLayout) mRootView.findViewById(R.id.frame);
+ mPreviewFrameLayout.setOnLayoutChangeListener(mActivity);
+ mReviewImage = (ImageView) mRootView.findViewById(R.id.review_image);
+ mShutterButton = mActivity.getShutterButton();
+ mShutterButton.setImageResource(R.drawable.btn_new_shutter_video);
+ mShutterButton.setOnShutterButtonListener(mController);
+ mShutterButton.setVisibility(View.VISIBLE);
+ mShutterButton.requestFocus();
+ mShutterButton.enableTouch(true);
+ mRecordingTimeView = (TextView) mRootView.findViewById(R.id.recording_time);
+ mRecordingTimeRect = (RotateLayout) mRootView.findViewById(R.id.recording_time_rect);
+ mTimeLapseLabel = mRootView.findViewById(R.id.time_lapse_label);
+ // The R.id.labels can only be found in phone layout.
+ // That is, mLabelsLinearLayout should be null in tablet layout.
+ mLabelsLinearLayout = (LinearLayout) mRootView.findViewById(R.id.labels);
+ }
+
+ public void updateOnScreenIndicators(Parameters param) {
+ if (param == null) return;
+ String value = param.getFlashMode();
+ if (mFlashIndicator == null) return;
+ if (value == null || Parameters.FLASH_MODE_OFF.equals(value)) {
+ mFlashIndicator.setImageResource(R.drawable.ic_indicator_flash_off);
+ } else {
+ if (Parameters.FLASH_MODE_AUTO.equals(value)) {
+ mFlashIndicator.setImageResource(R.drawable.ic_indicator_flash_auto);
+ } else if (Parameters.FLASH_MODE_ON.equals(value)
+ || Parameters.FLASH_MODE_TORCH.equals(value)) {
+ mFlashIndicator.setImageResource(R.drawable.ic_indicator_flash_on);
+ } else {
+ mFlashIndicator.setImageResource(R.drawable.ic_indicator_flash_off);
+ }
+ }
+ }
+
+ public void setAspectRatio(double ratio) {
+ mPreviewFrameLayout.setAspectRatio(ratio);
+ }
+
+ public void showTimeLapseUI(boolean enable) {
+ if (mTimeLapseLabel != null) {
+ mTimeLapseLabel.setVisibility(enable ? View.VISIBLE : View.GONE);
+ }
+ }
+
+ public void showPopup(AbstractSettingPopup popup) {
+ mActivity.hideUI();
+ mBlocker.setVisibility(View.INVISIBLE);
+ setShowMenu(false);
+ mPopup = popup;
+ mPopup.setVisibility(View.VISIBLE);
+ FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(LayoutParams.WRAP_CONTENT,
+ LayoutParams.WRAP_CONTENT);
+ lp.gravity = Gravity.CENTER;
+ ((FrameLayout) mRootView).addView(mPopup, lp);
+ }
+
+ public void dismissPopup(boolean topLevelOnly) {
+ dismissPopup(topLevelOnly, true);
+ }
+
+ public void dismissPopup(boolean topLevelPopupOnly, boolean fullScreen) {
+ if (fullScreen) {
+ mActivity.showUI();
+ mBlocker.setVisibility(View.VISIBLE);
+ }
+ setShowMenu(fullScreen);
+ if (mPopup != null) {
+ ((FrameLayout) mRootView).removeView(mPopup);
+ mPopup = null;
+ }
+ mVideoMenu.popupDismissed(topLevelPopupOnly);
+ }
+
+ public void onShowSwitcherPopup() {
+ hidePieRenderer();
+ }
+
+ public boolean hidePieRenderer() {
+ if (mPieRenderer != null && mPieRenderer.showsItems()) {
+ mPieRenderer.hide();
+ return true;
+ }
+ return false;
+ }
+
+ public void enableShutter(boolean enable) {
+ if (mShutterButton != null) {
+ mShutterButton.setEnabled(enable);
+ }
+ }
+
+ // PieListener
+ @Override
+ public void onPieOpened(int centerX, int centerY) {
+ mActivity.cancelActivityTouchHandling();
+ mActivity.setSwipingEnabled(false);
+ }
+
+ @Override
+ public void onPieClosed() {
+ mActivity.setSwipingEnabled(true);
+ }
+
+ public void showPreviewBorder(boolean enable) {
+ mPreviewFrameLayout.showBorder(enable);
+ }
+
+ // SingleTapListener
+ // Preview area is touched. Take a picture.
+ @Override
+ public void onSingleTapUp(View view, int x, int y) {
+ mController.onSingleTapUp(view, x, y);
+ }
+
+ // SurfaceView callback
+ @Override
+ public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
+ Log.v(TAG, "Surface changed. width=" + width + ". height=" + height);
+ }
+
+ @Override
+ public void surfaceCreated(SurfaceHolder holder) {
+ Log.v(TAG, "Surface created");
+ mSurfaceViewReady = true;
+ }
+
+ @Override
+ public void surfaceDestroyed(SurfaceHolder holder) {
+ Log.v(TAG, "Surface destroyed");
+ mSurfaceViewReady = false;
+ mController.stopPreview();
+ }
+
+ public boolean isSurfaceViewReady() {
+ return mSurfaceViewReady;
+ }
+
+ public void showRecordingUI(boolean recording, boolean zoomSupported) {
+ mMenu.setVisibility(recording ? View.GONE : View.VISIBLE);
+ mOnScreenIndicators.setVisibility(recording ? View.GONE : View.VISIBLE);
+ if (recording) {
+ mShutterButton.setImageResource(R.drawable.btn_shutter_video_recording);
+ mActivity.hideSwitcher();
+ mRecordingTimeView.setText("");
+ mRecordingTimeView.setVisibility(View.VISIBLE);
+ // The camera is not allowed to be accessed in older api levels during
+ // recording. It is therefore necessary to hide the zoom UI on older
+ // platforms.
+ // See the documentation of android.media.MediaRecorder.start() for
+ // further explanation.
+ if (!ApiHelper.HAS_ZOOM_WHEN_RECORDING && zoomSupported) {
+ // TODO: disable zoom UI here.
+ }
+ } else {
+ mShutterButton.setImageResource(R.drawable.btn_new_shutter_video);
+ mActivity.showSwitcher();
+ mRecordingTimeView.setVisibility(View.GONE);
+ if (!ApiHelper.HAS_ZOOM_WHEN_RECORDING && zoomSupported) {
+ // TODO: enable zoom UI here.
+ }
+ }
+ }
+
+ public void showReviewImage(Bitmap bitmap) {
+ mReviewImage.setImageBitmap(bitmap);
+ mReviewImage.setVisibility(View.VISIBLE);
+ }
+
+ public void showReviewControls() {
+ Util.fadeOut(mShutterButton);
+ Util.fadeIn(mReviewDoneButton);
+ Util.fadeIn(mReviewPlayButton);
+ mReviewImage.setVisibility(View.VISIBLE);
+ mMenu.setVisibility(View.GONE);
+ mOnScreenIndicators.setVisibility(View.GONE);
+ }
+
+ public void hideReviewUI() {
+ mReviewImage.setVisibility(View.GONE);
+ mShutterButton.setEnabled(true);
+ mMenu.setVisibility(View.VISIBLE);
+ mOnScreenIndicators.setVisibility(View.VISIBLE);
+ Util.fadeOut(mReviewDoneButton);
+ Util.fadeOut(mReviewPlayButton);
+ Util.fadeIn(mShutterButton);
+ }
+
+ private void setShowMenu(boolean show) {
+ if (mOnScreenIndicators != null) {
+ mOnScreenIndicators.setVisibility(show ? View.VISIBLE : View.GONE);
+ }
+ if (mMenu != null) {
+ mMenu.setVisibility(show ? View.VISIBLE : View.GONE);
+ }
+ }
+
+ public void onFullScreenChanged(boolean full) {
+ if (mGestures != null) {
+ mGestures.setEnabled(full);
+ }
+ if (mPopup != null) {
+ dismissPopup(false, full);
+ }
+ if (mRenderOverlay != null) {
+ // this can not happen in capture mode
+ mRenderOverlay.setVisibility(full ? View.VISIBLE : View.GONE);
+ }
+ setShowMenu(full);
+ if (mBlocker != null) {
+ // this can not happen in capture mode
+ mBlocker.setVisibility(full ? View.VISIBLE : View.GONE);
+ }
+ }
+
+ public void initializePopup(PreferenceGroup pref) {
+ mVideoMenu.initialize(pref);
+ }
+
+ public void initializeZoom(Parameters param) {
+ if (param == null || !param.isZoomSupported()) return;
+ mZoomMax = param.getMaxZoom();
+ mZoomRatios = param.getZoomRatios();
+ // Currently we use immediate zoom for fast zooming to get better UX and
+ // there is no plan to take advantage of the smooth zoom.
+ mZoomRenderer.setZoomMax(mZoomMax);
+ mZoomRenderer.setZoom(param.getZoom());
+ mZoomRenderer.setZoomValue(mZoomRatios.get(param.getZoom()));
+ mZoomRenderer.setOnZoomChangeListener(new ZoomChangeListener());
+ }
+
+ public void clickShutter() {
+ mShutterButton.performClick();
+ }
+
+ public void pressShutter(boolean pressed) {
+ mShutterButton.setPressed(pressed);
+ }
+
+ public boolean dispatchTouchEvent(MotionEvent m) {
+ if (mPopup == null && mGestures != null && mRenderOverlay != null) {
+ return mGestures.dispatchTouch(m);
+ } else if (mPopup != null) {
+ return mActivity.superDispatchTouchEvent(m);
+ }
+ return false;
+ }
+
+ public void setRecordingTime(String text) {
+ mRecordingTimeView.setText(text);
+ }
+
+ public void setRecordingTimeTextColor(int color) {
+ mRecordingTimeView.setTextColor(color);
+ }
+
+ private class ZoomChangeListener implements ZoomRenderer.OnZoomChangedListener {
+ @Override
+ public void onZoomValueChanged(int index) {
+ int newZoom = mController.onZoomChanged(index);
+ if (mZoomRenderer != null) {
+ mZoomRenderer.setZoomValue(mZoomRatios.get(newZoom));
+ }
+ }
+
+ @Override
+ public void onZoomStart() {
+ }
+
+ @Override
+ public void onZoomEnd() {
+ }
+ }
+}