104 lines
3.7 KiB
Java
104 lines
3.7 KiB
Java
/*
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* Copyright (C) 2015 The Android Open Source Project
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* Copyright (C) 2024 The LineageOS Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.messaging.ui.mediapicker;
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import android.content.Context;
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import android.graphics.Canvas;
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import android.hardware.Camera;
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import android.os.Bundle;
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import android.os.Parcelable;
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import android.util.AttributeSet;
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import android.view.ViewGroup;
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import android.widget.FrameLayout;
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import androidx.annotation.NonNull;
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import com.android.messaging.R;
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import com.android.messaging.ui.PersistentInstanceState;
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import com.android.messaging.util.ThreadUtil;
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public class CameraMediaChooserView extends FrameLayout implements PersistentInstanceState {
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private static final String KEY_CAMERA_INDEX = "camera_index";
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// True if we have at least queued an update to the view tree to support software rendering
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// fallback
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private boolean mIsSoftwareFallbackActive;
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public CameraMediaChooserView(final Context context, final AttributeSet attrs) {
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super(context, attrs);
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}
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@Override
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protected Parcelable onSaveInstanceState() {
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final Bundle bundle = new Bundle();
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bundle.putInt(KEY_CAMERA_INDEX, CameraManager.get().getCameraIndex());
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return bundle;
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}
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@Override
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protected void onRestoreInstanceState(final Parcelable state) {
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if (!(state instanceof Bundle)) {
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return;
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}
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final Bundle bundle = (Bundle) state;
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CameraManager.get().selectCameraByIndex(bundle.getInt(KEY_CAMERA_INDEX));
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}
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@Override
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public Parcelable saveState() {
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return onSaveInstanceState();
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}
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@Override
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public void restoreState(final Parcelable restoredState) {
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onRestoreInstanceState(restoredState);
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}
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@Override
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public void resetState() {
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CameraManager.get().selectCamera(Camera.CameraInfo.CAMERA_FACING_BACK);
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}
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@Override
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protected void onDraw(@NonNull final Canvas canvas) {
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super.onDraw(canvas);
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// If the canvas isn't hardware accelerated, we have to replace the HardwareCameraPreview
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// with a SoftwareCameraPreview which supports software rendering
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if (!canvas.isHardwareAccelerated() && !mIsSoftwareFallbackActive) {
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mIsSoftwareFallbackActive = true;
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// Post modifying the tree since we can't modify the view tree during a draw pass
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ThreadUtil.getMainThreadHandler().post(() -> {
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final HardwareCameraPreview cameraPreview =
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(HardwareCameraPreview) findViewById(R.id.camera_preview);
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if (cameraPreview == null) {
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return;
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}
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final ViewGroup parent = ((ViewGroup) cameraPreview.getParent());
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final int index = parent.indexOfChild(cameraPreview);
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final SoftwareCameraPreview softwareCameraPreview =
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new SoftwareCameraPreview(getContext());
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// Be sure to remove the hardware view before adding the software view to
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// prevent having 2 camera previews active at the same time
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parent.removeView(cameraPreview);
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parent.addView(softwareCameraPreview, index);
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});
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}
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}
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}
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