86 lines
3.2 KiB
Java
86 lines
3.2 KiB
Java
package org.thoughtcrime.securesms.conversation;
|
|
|
|
import android.app.Application;
|
|
import androidx.lifecycle.LiveData;
|
|
import androidx.lifecycle.MutableLiveData;
|
|
import androidx.lifecycle.ViewModel;
|
|
import androidx.lifecycle.ViewModelProvider;
|
|
import android.database.ContentObserver;
|
|
import android.os.Handler;
|
|
import androidx.annotation.NonNull;
|
|
import android.text.TextUtils;
|
|
|
|
import org.thoughtcrime.securesms.components.emoji.EmojiUtil;
|
|
import org.thoughtcrime.securesms.database.CursorList;
|
|
import org.thoughtcrime.securesms.database.DatabaseContentProviders;
|
|
import org.thoughtcrime.securesms.database.model.StickerRecord;
|
|
import org.thoughtcrime.securesms.stickers.StickerSearchRepository;
|
|
import org.thoughtcrime.securesms.util.CloseableLiveData;
|
|
import org.thoughtcrime.securesms.util.Throttler;
|
|
|
|
import java.util.List;
|
|
|
|
class ConversationStickerViewModel extends ViewModel {
|
|
|
|
private final Application application;
|
|
private final StickerSearchRepository repository;
|
|
private final MutableLiveData<List<StickerRecord>> stickers;
|
|
private final MutableLiveData<Boolean> stickersAvailable;
|
|
private final Throttler availabilityThrottler;
|
|
private final ContentObserver packObserver;
|
|
|
|
private ConversationStickerViewModel(@NonNull Application application, @NonNull StickerSearchRepository repository) {
|
|
this.application = application;
|
|
this.repository = repository;
|
|
this.stickers = new MutableLiveData<>();
|
|
this.stickersAvailable = new MutableLiveData<>();
|
|
this.availabilityThrottler = new Throttler(500);
|
|
this.packObserver = new ContentObserver(new Handler()) {
|
|
@Override
|
|
public void onChange(boolean selfChange) {
|
|
availabilityThrottler.publish(() -> repository.getStickerFeatureAvailability(stickersAvailable::postValue));
|
|
}
|
|
};
|
|
|
|
application.getContentResolver().registerContentObserver(DatabaseContentProviders.StickerPack.CONTENT_URI, true, packObserver);
|
|
}
|
|
|
|
@NonNull LiveData<List<StickerRecord>> getStickerResults() {
|
|
return stickers;
|
|
}
|
|
|
|
@NonNull LiveData<Boolean> getStickersAvailability() {
|
|
repository.getStickerFeatureAvailability(stickersAvailable::postValue);
|
|
return stickersAvailable;
|
|
}
|
|
|
|
void onInputTextUpdated(@NonNull String text) {
|
|
if (TextUtils.isEmpty(text) || text.length() > EmojiUtil.MAX_EMOJI_LENGTH) {
|
|
stickers.setValue(CursorList.emptyList());
|
|
} else {
|
|
repository.searchByEmoji(text, stickers::postValue);
|
|
}
|
|
}
|
|
|
|
@Override
|
|
protected void onCleared() {
|
|
application.getContentResolver().unregisterContentObserver(packObserver);
|
|
}
|
|
|
|
static class Factory extends ViewModelProvider.NewInstanceFactory {
|
|
private final Application application;
|
|
private final StickerSearchRepository repository;
|
|
|
|
public Factory(@NonNull Application application, @NonNull StickerSearchRepository repository) {
|
|
this.application = application;
|
|
this.repository = repository;
|
|
}
|
|
|
|
@Override
|
|
public @NonNull <T extends ViewModel> T create(@NonNull Class<T> modelClass) {
|
|
//noinspection ConstantConditions
|
|
return modelClass.cast(new ConversationStickerViewModel(application, repository));
|
|
}
|
|
}
|
|
}
|