diff options
Diffstat (limited to 'mobile/android/geckoview/src/main/java/org/mozilla/gecko/SurfaceViewWrapper.java')
| -rw-r--r-- | mobile/android/geckoview/src/main/java/org/mozilla/gecko/SurfaceViewWrapper.java | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/mobile/android/geckoview/src/main/java/org/mozilla/gecko/SurfaceViewWrapper.java b/mobile/android/geckoview/src/main/java/org/mozilla/gecko/SurfaceViewWrapper.java new file mode 100644 index 0000000000..d5258d7bd0 --- /dev/null +++ b/mobile/android/geckoview/src/main/java/org/mozilla/gecko/SurfaceViewWrapper.java @@ -0,0 +1,198 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +package org.mozilla.gecko; + +import android.content.Context; +import android.graphics.Color; +import android.graphics.PixelFormat; +import android.graphics.SurfaceTexture; +import android.os.Build; +import android.util.Log; +import android.view.Surface; +import android.view.SurfaceControl; +import android.view.SurfaceHolder; +import android.view.SurfaceView; +import android.view.TextureView; +import android.view.View; + +/** Provides transparent access to either a SurfaceView or TextureView */ +public class SurfaceViewWrapper { + private static final String LOGTAG = "SurfaceViewWrapper"; + + private ListenerWrapper mListenerWrapper; + private View mView; + + // Only one of these will be non-null at any point in time + SurfaceView mSurfaceView; + TextureView mTextureView; + + public SurfaceViewWrapper(final Context context) { + // By default, use SurfaceView + mListenerWrapper = new ListenerWrapper(); + initSurfaceView(context); + } + + private void initSurfaceView(final Context context) { + mSurfaceView = new MagnifiableSurfaceView(context); + mSurfaceView.setBackgroundColor(Color.TRANSPARENT); + mSurfaceView.getHolder().setFormat(PixelFormat.TRANSPARENT); + mView = mSurfaceView; + } + + public void useSurfaceView(final Context context) { + if (mTextureView != null) { + mListenerWrapper.onSurfaceTextureDestroyed(mTextureView.getSurfaceTexture()); + mTextureView = null; + } + mListenerWrapper.reset(); + initSurfaceView(context); + } + + public void useTextureView(final Context context) { + if (mSurfaceView != null) { + mListenerWrapper.surfaceDestroyed(mSurfaceView.getHolder()); + mSurfaceView = null; + } + mListenerWrapper.reset(); + mTextureView = new TextureView(context); + mTextureView.setSurfaceTextureListener(mListenerWrapper); + mView = mTextureView; + } + + public void setBackgroundColor(final int color) { + if (mSurfaceView != null) { + mSurfaceView.setBackgroundColor(color); + } else { + Log.e(LOGTAG, "TextureView doesn't support background color."); + } + } + + public void setListener(final Listener listener) { + mListenerWrapper.mListener = listener; + mSurfaceView.getHolder().addCallback(mListenerWrapper); + } + + public int getWidth() { + if (mSurfaceView != null) { + return mSurfaceView.getHolder().getSurfaceFrame().right; + } + return mListenerWrapper.mWidth; + } + + public int getHeight() { + if (mSurfaceView != null) { + return mSurfaceView.getHolder().getSurfaceFrame().bottom; + } + return mListenerWrapper.mHeight; + } + + /** + * Returns the SurfaceControl associated with the SurfaceView, or null on unsupported SDK versions + * or when using the TextureView backend. + */ + public SurfaceControl getSurfaceControl() { + if (mSurfaceView != null && Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) { + return mSurfaceView.getSurfaceControl(); + } + + return null; + } + + public Surface getSurface() { + if (mSurfaceView != null) { + return mSurfaceView.getHolder().getSurface(); + } + + return mListenerWrapper.mSurface; + } + + public View getView() { + return mView; + } + + /** + * Translates SurfaceTextureListener and SurfaceHolder.Callback into a common interface + * SurfaceViewWrapper.Listener + */ + private class ListenerWrapper + implements TextureView.SurfaceTextureListener, SurfaceHolder.Callback { + private Listener mListener; + + // TextureView doesn't provide getters for these so we keep track of them here + private Surface mSurface; + private int mWidth; + private int mHeight; + + public void reset() { + mWidth = 0; + mHeight = 0; + mSurface = null; + } + + // TextureView + @Override + public void onSurfaceTextureAvailable( + final SurfaceTexture surface, final int width, final int height) { + mSurface = new Surface(surface); + mWidth = width; + mHeight = height; + if (mListener != null) { + mListener.onSurfaceChanged(mSurface, null, width, height); + } + } + + @Override + public void onSurfaceTextureSizeChanged( + final SurfaceTexture surface, final int width, final int height) { + mWidth = width; + mHeight = height; + if (mListener != null) { + mListener.onSurfaceChanged(mSurface, null, mWidth, mHeight); + } + } + + @Override + public boolean onSurfaceTextureDestroyed(final SurfaceTexture surface) { + if (mListener != null) { + mListener.onSurfaceDestroyed(); + } + mSurface = null; + return false; + } + + @Override + public void onSurfaceTextureUpdated(final SurfaceTexture surface) { + mSurface = new Surface(surface); + if (mListener != null) { + mListener.onSurfaceChanged(mSurface, null, mWidth, mHeight); + } + } + + // SurfaceView + @Override + public void surfaceCreated(final SurfaceHolder holder) {} + + @Override + public void surfaceChanged( + final SurfaceHolder holder, final int format, final int width, final int height) { + if (mListener != null) { + mListener.onSurfaceChanged(holder.getSurface(), getSurfaceControl(), width, height); + } + } + + @Override + public void surfaceDestroyed(final SurfaceHolder holder) { + if (mListener != null) { + mListener.onSurfaceDestroyed(); + } + } + } + + public interface Listener { + void onSurfaceChanged(Surface surface, SurfaceControl surfaceControl, int width, int height); + + void onSurfaceDestroyed(); + } +} |