react-native-video/android-exoplayer/src/main/java/com/brentvatne/exoplayer/ReactExoplayerViewManager.java

package com.brentvatne.exoplayer;

import android.content.Context;
import android.net.Uri;
import android.text.TextUtils;

import com.facebook.react.bridge.ReadableMap;
import com.facebook.react.common.MapBuilder;
import com.facebook.react.uimanager.ThemedReactContext;
import com.facebook.react.uimanager.ViewGroupManager;
import com.facebook.react.uimanager.annotations.ReactProp;
import com.google.android.exoplayer2.upstream.RawResourceDataSource;

import java.util.Map;

import javax.annotation.Nullable;

public class ReactExoplayerViewManager extends ViewGroupManager<ReactExoplayerView> {

    private static final String REACT_CLASS = "RCTVideo";

    private static final String PROP_SRC = "src";
    private static final String PROP_SRC_URI = "uri";
    private static final String PROP_SRC_TYPE = "type";
    private static final String PROP_RESIZE_MODE = "resizeMode";
    private static final String PROP_REPEAT = "repeat";
    private static final String PROP_PAUSED = "paused";
    private static final String PROP_MUTED = "muted";
    private static final String PROP_VOLUME = "volume";
    private static final String PROP_SEEK = "seek";
    private static final String PROP_RATE = "rate";
    private static final String PROP_PLAY_IN_BACKGROUND = "playInBackground";
    private static final String PROP_DISABLE_FOCUS = "disableFocus";

    @Override
    public String getName() {
        return REACT_CLASS;
    }

    @Override
    protected ReactExoplayerView createViewInstance(ThemedReactContext themedReactContext) {
        return new ReactExoplayerView(themedReactContext);
    }

    @Override
    public void onDropViewInstance(ReactExoplayerView view) {
        view.cleanUpResources();
    }

    @Override
    public @Nullable Map<String, Object> getExportedCustomDirectEventTypeConstants() {
        MapBuilder.Builder<String, Object> builder = MapBuilder.builder();
        for (String event : VideoEventEmitter.Events) {
            builder.put(event, MapBuilder.of("registrationName", event));
        }
        return builder.build();
    }

    @Override
    public @Nullable Map<String, Object> getExportedViewConstants() {
        return MapBuilder.<String, Object>of(
                "ScaleNone", Integer.toString(ResizeMode.RESIZE_MODE_FIT),
                "ScaleAspectFit", Integer.toString(ResizeMode.RESIZE_MODE_FIT),
                "ScaleToFill", Integer.toString(ResizeMode.RESIZE_MODE_FILL),
                "ScaleAspectFill", Integer.toString(ResizeMode.RESIZE_MODE_CENTER_CROP)
        );
    }

    @ReactProp(name = PROP_SRC)
    public void setSrc(final ReactExoplayerView videoView, @Nullable ReadableMap src) {
        Context context = videoView.getContext().getApplicationContext();
        String uriString = src.hasKey(PROP_SRC_URI) ? src.getString(PROP_SRC_URI) : null;
        String extension = src.hasKey(PROP_SRC_TYPE) ? src.getString(PROP_SRC_TYPE) : null;

        if (TextUtils.isEmpty(uriString)) {
            return;
        }

        if (startsWithValidScheme(uriString)) {
            Uri srcUri = Uri.parse(uriString);

            if (srcUri != null) {
                videoView.setSrc(srcUri, extension);
            }
        } else {
            int identifier = context.getResources().getIdentifier(
                uriString,
                "drawable",
                context.getPackageName()
            );
            if (identifier == 0) {
                identifier = context.getResources().getIdentifier(
                    uriString,
                    "raw",
                    context.getPackageName()
                );
            }
            if (identifier > 0) {
                Uri srcUri = RawResourceDataSource.buildRawResourceUri(identifier);
                if (srcUri != null) {
                    videoView.setRawSrc(srcUri, extension);
                }
            }
        }
    }

    @ReactProp(name = PROP_RESIZE_MODE)
    public void setResizeMode(final ReactExoplayerView videoView, final String resizeModeOrdinalString) {
        videoView.setResizeModeModifier(convertToIntDef(resizeModeOrdinalString));
    }

    @ReactProp(name = PROP_REPEAT, defaultBoolean = false)
    public void setRepeat(final ReactExoplayerView videoView, final boolean repeat) {
        videoView.setRepeatModifier(repeat);
    }

    @ReactProp(name = PROP_PAUSED, defaultBoolean = false)
    public void setPaused(final ReactExoplayerView videoView, final boolean paused) {
        videoView.setPausedModifier(paused);
    }

    @ReactProp(name = PROP_MUTED, defaultBoolean = false)
    public void setMuted(final ReactExoplayerView videoView, final boolean muted) {
        videoView.setMutedModifier(muted);
    }

    @ReactProp(name = PROP_VOLUME, defaultFloat = 1.0f)
    public void setVolume(final ReactExoplayerView videoView, final float volume) {
        videoView.setVolumeModifier(volume);
    }

    @ReactProp(name = PROP_SEEK)
    public void setSeek(final ReactExoplayerView videoView, final float seek) {
        videoView.seekTo(Math.round(seek * 1000f));
    }

    @ReactProp(name = PROP_RATE)
    public void setRate(final ReactExoplayerView videoView, final float rate) {
        videoView.setRateModifier(rate);
    }

    @ReactProp(name = PROP_PLAY_IN_BACKGROUND, defaultBoolean = false)
    public void setPlayInBackground(final ReactExoplayerView videoView, final boolean playInBackground) {
        videoView.setPlayInBackground(playInBackground);
    }

    @ReactProp(name = PROP_DISABLE_FOCUS, defaultBoolean = false)
    public void setDisableFocus(final ReactExoplayerView videoView, final boolean disableFocus) {
        videoView.setDisableFocus(disableFocus);
    }

    private boolean startsWithValidScheme(String uriString) {
        return uriString.startsWith("http://")
                || uriString.startsWith("https://")
                || uriString.startsWith("content://")
                || uriString.startsWith("file://")
                || uriString.startsWith("asset://");
    }

    private @ResizeMode.Mode int convertToIntDef(String resizeModeOrdinalString) {
        if (!TextUtils.isEmpty(resizeModeOrdinalString)) {
            int resizeModeOrdinal = Integer.parseInt(resizeModeOrdinalString);
            return ResizeMode.toResizeMode(resizeModeOrdinal);
        }
        return ResizeMode.RESIZE_MODE_FIT;
    }
}