600 lines
20 KiB
Java
600 lines
20 KiB
Java
package org.thoughtcrime.securesms.mediasend;
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import android.app.Application;
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import androidx.annotation.Nullable;
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import androidx.lifecycle.LiveData;
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import androidx.lifecycle.MutableLiveData;
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import androidx.lifecycle.ViewModel;
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import androidx.lifecycle.ViewModelProvider;
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import android.content.Context;
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import android.net.Uri;
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import androidx.annotation.NonNull;
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import android.text.TextUtils;
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import com.annimon.stream.Stream;
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import org.thoughtcrime.securesms.TransportOption;
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import org.thoughtcrime.securesms.logging.Log;
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import org.thoughtcrime.securesms.mms.MediaConstraints;
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import org.thoughtcrime.securesms.providers.BlobProvider;
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import org.thoughtcrime.securesms.recipients.Recipient;
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import org.thoughtcrime.securesms.util.FeatureFlags;
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import org.thoughtcrime.securesms.util.MediaUtil;
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import org.thoughtcrime.securesms.util.SingleLiveEvent;
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import org.thoughtcrime.securesms.util.TextSecurePreferences;
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import org.thoughtcrime.securesms.util.Util;
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import org.whispersystems.libsignal.util.guava.Optional;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.Map;
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/**
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* Manages the observable datasets available in {@link MediaSendActivity}.
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*/
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class MediaSendViewModel extends ViewModel {
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private static final String TAG = MediaSendViewModel.class.getSimpleName();
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private static final int MAX_PUSH = 32;
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private static final int MAX_SMS = 1;
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private final Application application;
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private final MediaRepository repository;
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private final MutableLiveData<List<Media>> selectedMedia;
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private final MutableLiveData<List<Media>> bucketMedia;
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private final MutableLiveData<Optional<Media>> mostRecentMedia;
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private final MutableLiveData<Integer> position;
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private final MutableLiveData<String> bucketId;
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private final MutableLiveData<List<MediaFolder>> folders;
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private final MutableLiveData<HudState> hudState;
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private final SingleLiveEvent<Error> error;
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private final Map<Uri, Object> savedDrawState;
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private MediaConstraints mediaConstraints;
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private CharSequence body;
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private boolean sentMedia;
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private int maxSelection;
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private Page page;
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private boolean isSms;
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private Optional<Media> lastCameraCapture;
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private boolean hudVisible;
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private boolean composeVisible;
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private boolean captionVisible;
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private ButtonState buttonState;
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private RailState railState;
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private ViewOnceState viewOnceState;
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private @Nullable Recipient recipient;
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private MediaSendViewModel(@NonNull Application application, @NonNull MediaRepository repository) {
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this.application = application;
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this.repository = repository;
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this.selectedMedia = new MutableLiveData<>();
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this.bucketMedia = new MutableLiveData<>();
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this.mostRecentMedia = new MutableLiveData<>();
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this.position = new MutableLiveData<>();
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this.bucketId = new MutableLiveData<>();
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this.folders = new MutableLiveData<>();
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this.hudState = new MutableLiveData<>();
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this.error = new SingleLiveEvent<>();
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this.savedDrawState = new HashMap<>();
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this.lastCameraCapture = Optional.absent();
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this.body = "";
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this.buttonState = ButtonState.GONE;
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this.railState = RailState.GONE;
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this.viewOnceState = ViewOnceState.GONE;
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this.page = Page.UNKNOWN;
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position.setValue(-1);
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}
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void setTransport(@NonNull TransportOption transport) {
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if (transport.isSms()) {
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isSms = true;
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maxSelection = MAX_SMS;
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mediaConstraints = MediaConstraints.getMmsMediaConstraints(transport.getSimSubscriptionId().or(-1));
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} else {
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isSms = false;
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maxSelection = MAX_PUSH;
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mediaConstraints = MediaConstraints.getPushMediaConstraints();
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}
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}
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void setRecipient(@Nullable Recipient recipient) {
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this.recipient = recipient;
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}
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void onSelectedMediaChanged(@NonNull Context context, @NonNull List<Media> newMedia) {
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repository.getPopulatedMedia(context, newMedia, populatedMedia -> {
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Util.runOnMain(() -> {
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List<Media> filteredMedia = getFilteredMedia(context, populatedMedia, mediaConstraints);
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if (filteredMedia.size() != newMedia.size()) {
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error.setValue(Error.ITEM_TOO_LARGE);
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} else if (filteredMedia.size() > maxSelection) {
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filteredMedia = filteredMedia.subList(0, maxSelection);
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error.setValue(Error.TOO_MANY_ITEMS);
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}
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if (filteredMedia.size() > 0) {
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String computedId = Stream.of(filteredMedia)
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.skip(1)
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.reduce(filteredMedia.get(0).getBucketId().or(Media.ALL_MEDIA_BUCKET_ID), (id, m) -> {
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if (Util.equals(id, m.getBucketId().or(Media.ALL_MEDIA_BUCKET_ID))) {
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return id;
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} else {
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return Media.ALL_MEDIA_BUCKET_ID;
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}
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});
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bucketId.setValue(computedId);
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} else {
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bucketId.setValue(Media.ALL_MEDIA_BUCKET_ID);
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}
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if (page == Page.EDITOR && filteredMedia.isEmpty()) {
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error.postValue(Error.NO_ITEMS);
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} else if (filteredMedia.isEmpty()) {
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hudVisible = false;
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selectedMedia.setValue(filteredMedia);
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hudState.setValue(buildHudState());
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} else {
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hudVisible = true;
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selectedMedia.setValue(filteredMedia);
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hudState.setValue(buildHudState());
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}
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});
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});
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}
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void onSingleMediaSelected(@NonNull Context context, @NonNull Media media) {
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repository.getPopulatedMedia(context, Collections.singletonList(media), populatedMedia -> {
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Util.runOnMain(() -> {
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List<Media> filteredMedia = getFilteredMedia(context, populatedMedia, mediaConstraints);
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if (filteredMedia.isEmpty()) {
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error.setValue(Error.ITEM_TOO_LARGE);
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bucketId.setValue(Media.ALL_MEDIA_BUCKET_ID);
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} else {
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bucketId.setValue(filteredMedia.get(0).getBucketId().or(Media.ALL_MEDIA_BUCKET_ID));
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}
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selectedMedia.setValue(filteredMedia);
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});
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});
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}
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void onMultiSelectStarted() {
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hudVisible = true;
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composeVisible = false;
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captionVisible = false;
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buttonState = ButtonState.COUNT;
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railState = RailState.VIEWABLE;
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viewOnceState = ViewOnceState.GONE;
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hudState.setValue(buildHudState());
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}
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void onImageEditorStarted() {
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page = Page.EDITOR;
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hudVisible = true;
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composeVisible = viewOnceState != ViewOnceState.ENABLED;
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captionVisible = getSelectedMediaOrDefault().size() > 1 || (getSelectedMediaOrDefault().size() > 0 && getSelectedMediaOrDefault().get(0).getCaption().isPresent());
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buttonState = (recipient != null) ? ButtonState.SEND : ButtonState.CONTINUE;
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if (viewOnceState == ViewOnceState.GONE && viewOnceSupported()) {
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if (FeatureFlags.VIEW_ONCE_SENDING) {
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viewOnceState = TextSecurePreferences.isRevealableMessageEnabled(application) ? ViewOnceState.ENABLED : ViewOnceState.DISABLED;
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} else {
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viewOnceState = ViewOnceState.GONE;
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}
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} else if (!viewOnceSupported()) {
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viewOnceState = ViewOnceState.GONE;
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}
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railState = !isSms && viewOnceState != ViewOnceState.ENABLED ? RailState.INTERACTIVE : RailState.GONE;
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hudState.setValue(buildHudState());
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}
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void onCameraStarted() {
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// TODO: Don't need this?
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Page previous = page;
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page = Page.CAMERA;
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hudVisible = false;
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viewOnceState = ViewOnceState.GONE;
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buttonState = ButtonState.COUNT;
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List<Media> selected = getSelectedMediaOrDefault();
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if (previous == Page.EDITOR && lastCameraCapture.isPresent() && selected.contains(lastCameraCapture.get()) && selected.size() == 1) {
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selected.remove(lastCameraCapture.get());
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selectedMedia.setValue(selected);
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BlobProvider.getInstance().delete(application, lastCameraCapture.get().getUri());
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}
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hudState.setValue(buildHudState());
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}
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void onItemPickerStarted() {
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page = Page.ITEM_PICKER;
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hudVisible = true;
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composeVisible = false;
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captionVisible = false;
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buttonState = ButtonState.COUNT;
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viewOnceState = ViewOnceState.GONE;
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railState = getSelectedMediaOrDefault().isEmpty() ? RailState.GONE : RailState.VIEWABLE;
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lastCameraCapture = Optional.absent();
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hudState.setValue(buildHudState());
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}
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void onFolderPickerStarted() {
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page = Page.FOLDER_PICKER;
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hudVisible = true;
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composeVisible = false;
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captionVisible = false;
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buttonState = ButtonState.COUNT;
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viewOnceState = ViewOnceState.GONE;
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railState = getSelectedMediaOrDefault().isEmpty() ? RailState.GONE : RailState.VIEWABLE;
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lastCameraCapture = Optional.absent();
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hudState.setValue(buildHudState());
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}
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void onContactSelectStarted() {
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hudVisible = false;
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hudState.setValue(buildHudState());
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}
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void onRevealButtonToggled() {
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hudVisible = true;
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viewOnceState = viewOnceState == ViewOnceState.ENABLED ? ViewOnceState.DISABLED : ViewOnceState.ENABLED;
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composeVisible = viewOnceState != ViewOnceState.ENABLED;
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railState = viewOnceState == ViewOnceState.ENABLED || isSms ? RailState.GONE : RailState.INTERACTIVE;
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captionVisible = false;
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List<Media> uncaptioned = Stream.of(getSelectedMediaOrDefault())
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.map(m -> new Media(m.getUri(), m.getMimeType(), m.getDate(), m.getWidth(), m.getHeight(), m.getSize(), m.getBucketId(), Optional.absent()))
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.toList();
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selectedMedia.setValue(uncaptioned);
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TextSecurePreferences.setIsRevealableMessageEnabled(application, viewOnceState == ViewOnceState.ENABLED);
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hudState.setValue(buildHudState());
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}
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void onKeyboardHidden(boolean isSms) {
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if (page != Page.EDITOR) return;
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composeVisible = (viewOnceState != ViewOnceState.ENABLED);
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buttonState = (recipient != null) ? ButtonState.SEND : ButtonState.CONTINUE;
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if (isSms) {
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railState = RailState.GONE;
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captionVisible = false;
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} else {
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railState = viewOnceState != ViewOnceState.ENABLED ? RailState.INTERACTIVE : RailState.GONE;
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if (getSelectedMediaOrDefault().size() > 1 || (getSelectedMediaOrDefault().size() > 0 && getSelectedMediaOrDefault().get(0).getCaption().isPresent())) {
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captionVisible = true;
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}
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}
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hudState.setValue(buildHudState());
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}
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void onKeyboardShown(boolean isComposeFocused, boolean isCaptionFocused, boolean isSms) {
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if (page != Page.EDITOR) return;
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if (isSms) {
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railState = RailState.GONE;
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composeVisible = (viewOnceState == ViewOnceState.GONE);
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captionVisible = false;
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buttonState = (recipient != null) ? ButtonState.SEND : ButtonState.CONTINUE;
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} else {
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if (isCaptionFocused) {
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railState = viewOnceState != ViewOnceState.ENABLED ? RailState.INTERACTIVE : RailState.GONE;
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composeVisible = false;
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captionVisible = true;
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buttonState = ButtonState.GONE;
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} else if (isComposeFocused) {
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railState = viewOnceState != ViewOnceState.ENABLED ? RailState.INTERACTIVE : RailState.GONE;
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composeVisible = (viewOnceState != ViewOnceState.ENABLED);
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captionVisible = false;
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buttonState = (recipient != null) ? ButtonState.SEND : ButtonState.CONTINUE;
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}
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}
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hudState.setValue(buildHudState());
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}
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void onBodyChanged(@NonNull CharSequence body) {
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this.body = body;
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}
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void onFolderSelected(@NonNull String bucketId) {
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this.bucketId.setValue(bucketId);
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bucketMedia.setValue(Collections.emptyList());
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}
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void onPageChanged(int position) {
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if (position < 0 || position >= getSelectedMediaOrDefault().size()) {
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Log.w(TAG, "Tried to move to an out-of-bounds item. Size: " + getSelectedMediaOrDefault().size() + ", position: " + position);
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return;
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}
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this.position.setValue(position);
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}
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void onMediaItemRemoved(@NonNull Context context, int position) {
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if (position < 0 || position >= getSelectedMediaOrDefault().size()) {
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Log.w(TAG, "Tried to remove an out-of-bounds item. Size: " + getSelectedMediaOrDefault().size() + ", position: " + position);
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return;
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}
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Media removed = getSelectedMediaOrDefault().remove(position);
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if (removed != null && BlobProvider.isAuthority(removed.getUri())) {
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BlobProvider.getInstance().delete(context, removed.getUri());
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}
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if (page == Page.EDITOR && getSelectedMediaOrDefault().isEmpty()) {
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error.setValue(Error.NO_ITEMS);
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} else {
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selectedMedia.setValue(selectedMedia.getValue());
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}
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if (getSelectedMediaOrDefault().size() > 0) {
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this.position.setValue(Math.min(position, getSelectedMediaOrDefault().size() - 1));
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}
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if (getSelectedMediaOrDefault().size() == 1) {
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viewOnceState = viewOnceSupported() ? ViewOnceState.DISABLED : ViewOnceState.GONE;
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}
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hudState.setValue(buildHudState());
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}
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void onImageCaptured(@NonNull Media media) {
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lastCameraCapture = Optional.of(media);
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List<Media> selected = selectedMedia.getValue();
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if (selected == null) {
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selected = new LinkedList<>();
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}
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if (selected.size() >= maxSelection) {
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error.setValue(Error.TOO_MANY_ITEMS);
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return;
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}
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selected.add(media);
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selectedMedia.setValue(selected);
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position.setValue(selected.size() - 1);
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bucketId.setValue(Media.ALL_MEDIA_BUCKET_ID);
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}
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void onCaptionChanged(@NonNull String newCaption) {
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if (position.getValue() >= 0 && !Util.isEmpty(selectedMedia.getValue())) {
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selectedMedia.getValue().get(position.getValue()).setCaption(TextUtils.isEmpty(newCaption) ? null : newCaption);
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}
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}
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void onCameraControlsInitialized() {
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repository.getMostRecentItem(application, mostRecentMedia::postValue);
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}
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void saveDrawState(@NonNull Map<Uri, Object> state) {
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savedDrawState.clear();
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savedDrawState.putAll(state);
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}
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void onSendClicked() {
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sentMedia = true;
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}
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@NonNull Map<Uri, Object> getDrawState() {
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return savedDrawState;
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}
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@NonNull LiveData<List<Media>> getSelectedMedia() {
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return selectedMedia;
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}
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@NonNull LiveData<List<Media>> getMediaInBucket(@NonNull Context context, @NonNull String bucketId) {
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repository.getMediaInBucket(context, bucketId, bucketMedia::postValue);
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return bucketMedia;
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}
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@NonNull LiveData<List<MediaFolder>> getFolders(@NonNull Context context) {
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repository.getFolders(context, folders::postValue);
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return folders;
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}
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@NonNull LiveData<Optional<Media>> getMostRecentMediaItem(@NonNull Context context) {
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return mostRecentMedia;
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}
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@NonNull CharSequence getBody() {
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return body;
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}
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@NonNull LiveData<Integer> getPosition() {
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return position;
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}
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@NonNull LiveData<String> getBucketId() {
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return bucketId;
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}
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@NonNull LiveData<Error> getError() {
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return error;
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}
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@NonNull LiveData<HudState> getHudState() {
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return hudState;
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}
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int getMaxSelection() {
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return maxSelection;
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}
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boolean isViewOnce() {
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return FeatureFlags.VIEW_ONCE_SENDING && viewOnceState == ViewOnceState.ENABLED;
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}
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private @NonNull List<Media> getSelectedMediaOrDefault() {
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return selectedMedia.getValue() == null ? Collections.emptyList()
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: selectedMedia.getValue();
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}
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private @NonNull List<Media> getFilteredMedia(@NonNull Context context, @NonNull List<Media> media, @NonNull MediaConstraints mediaConstraints) {
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return Stream.of(media).filter(m -> MediaUtil.isGif(m.getMimeType()) ||
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MediaUtil.isImageType(m.getMimeType()) ||
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MediaUtil.isVideoType(m.getMimeType()))
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.filter(m -> {
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return (MediaUtil.isImageType(m.getMimeType()) && !MediaUtil.isGif(m.getMimeType())) ||
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(MediaUtil.isGif(m.getMimeType()) && m.getSize() < mediaConstraints.getGifMaxSize(context)) ||
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(MediaUtil.isVideoType(m.getMimeType()) && m.getSize() < mediaConstraints.getUncompressedVideoMaxSize(context));
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}).toList();
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}
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private HudState buildHudState() {
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ViewOnceState updatedViewOnceState = FeatureFlags.VIEW_ONCE_SENDING ? viewOnceState : ViewOnceState.GONE;
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List<Media> selectedMedia = getSelectedMediaOrDefault();
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int selectionCount = selectedMedia.size();
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ButtonState updatedButtonState = buttonState == ButtonState.COUNT && selectionCount == 0 ? ButtonState.GONE : buttonState;
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boolean updatedCaptionVisible = captionVisible && (selectedMedia.size() > 1 || (selectedMedia.size() > 0 && selectedMedia.get(0).getCaption().isPresent()));
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return new HudState(hudVisible, composeVisible, updatedCaptionVisible, selectionCount, updatedButtonState, railState, updatedViewOnceState);
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}
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private void clearPersistedMedia() {
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Stream.of(getSelectedMediaOrDefault())
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.map(Media::getUri)
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.filter(BlobProvider::isAuthority)
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.forEach(uri -> BlobProvider.getInstance().delete(application.getApplicationContext(), uri));
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}
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private boolean viewOnceSupported() {
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return !isSms && (recipient == null || !recipient.isLocalNumber()) && mediaSupportsRevealableMessage(getSelectedMediaOrDefault());
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}
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private boolean mediaSupportsRevealableMessage(@NonNull List<Media> media) {
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if (media.size() != 1) return false;
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return MediaUtil.isImageOrVideoType(media.get(0).getMimeType());
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}
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@Override
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protected void onCleared() {
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if (!sentMedia) {
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clearPersistedMedia();
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}
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|
}
|
|
|
|
enum Error {
|
|
ITEM_TOO_LARGE, TOO_MANY_ITEMS, NO_ITEMS
|
|
}
|
|
|
|
enum Page {
|
|
CAMERA, ITEM_PICKER, FOLDER_PICKER, EDITOR, CONTACT_SELECT, UNKNOWN
|
|
}
|
|
|
|
enum ButtonState {
|
|
COUNT, SEND, CONTINUE, GONE
|
|
}
|
|
|
|
enum RailState {
|
|
INTERACTIVE, VIEWABLE, GONE
|
|
}
|
|
|
|
enum ViewOnceState {
|
|
ENABLED, DISABLED, GONE
|
|
}
|
|
|
|
static class HudState {
|
|
|
|
private final boolean hudVisible;
|
|
private final boolean composeVisible;
|
|
private final boolean captionVisible;
|
|
private final int selectionCount;
|
|
private final ButtonState buttonState;
|
|
private final RailState railState;
|
|
private final ViewOnceState viewOnceState;
|
|
|
|
HudState(boolean hudVisible,
|
|
boolean composeVisible,
|
|
boolean captionVisible,
|
|
int selectionCount,
|
|
@NonNull ButtonState buttonState,
|
|
@NonNull RailState railState,
|
|
@NonNull ViewOnceState viewOnceState)
|
|
{
|
|
this.hudVisible = hudVisible;
|
|
this.composeVisible = composeVisible;
|
|
this.captionVisible = captionVisible;
|
|
this.selectionCount = selectionCount;
|
|
this.buttonState = buttonState;
|
|
this.railState = railState;
|
|
this.viewOnceState = viewOnceState;
|
|
}
|
|
|
|
public boolean isHudVisible() {
|
|
return hudVisible;
|
|
}
|
|
|
|
public boolean isComposeVisible() {
|
|
return hudVisible && composeVisible;
|
|
}
|
|
|
|
public boolean isCaptionVisible() {
|
|
return hudVisible && captionVisible;
|
|
}
|
|
|
|
public int getSelectionCount() {
|
|
return selectionCount;
|
|
}
|
|
|
|
public @NonNull ButtonState getButtonState() {
|
|
return buttonState;
|
|
}
|
|
|
|
public @NonNull RailState getRailState() {
|
|
return hudVisible ? railState : RailState.GONE;
|
|
}
|
|
|
|
public @NonNull ViewOnceState getViewOnceState() {
|
|
return hudVisible ? viewOnceState : ViewOnceState.GONE;
|
|
}
|
|
}
|
|
|
|
static class Factory extends ViewModelProvider.NewInstanceFactory {
|
|
|
|
private final Application application;
|
|
private final MediaRepository repository;
|
|
|
|
Factory(@NonNull Application application, @NonNull MediaRepository repository) {
|
|
this.application = application;
|
|
this.repository = repository;
|
|
}
|
|
|
|
@Override
|
|
public @NonNull <T extends ViewModel> T create(@NonNull Class<T> modelClass) {
|
|
return modelClass.cast(new MediaSendViewModel(application, repository));
|
|
}
|
|
}
|
|
}
|