123 lines
3.5 KiB
Java
123 lines
3.5 KiB
Java
package org.thoughtcrime.securesms.mediasend;
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import android.net.Uri;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.fragment.app.Fragment;
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import androidx.fragment.app.FragmentManager;
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import androidx.fragment.app.FragmentStatePagerAdapter;
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import android.view.View;
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import android.view.ViewGroup;
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import org.thoughtcrime.securesms.scribbles.ImageEditorFragment;
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import org.thoughtcrime.securesms.util.MediaUtil;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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class MediaSendFragmentPagerAdapter extends FragmentStatePagerAdapter {
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private final List<Media> media;
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private final Map<Integer, MediaSendPageFragment> fragments;
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private final Map<Uri, Object> savedState;
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MediaSendFragmentPagerAdapter(@NonNull FragmentManager fm) {
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super(fm);
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this.media = new ArrayList<>();
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this.fragments = new HashMap<>();
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this.savedState = new HashMap<>();
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}
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@Override
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public Fragment getItem(int i) {
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Media mediaItem = media.get(i);
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if (MediaUtil.isGif(mediaItem.getMimeType())) {
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return MediaSendGifFragment.newInstance(mediaItem.getUri());
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} else if (MediaUtil.isImageType(mediaItem.getMimeType())) {
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return ImageEditorFragment.newInstance(mediaItem.getUri());
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} else if (MediaUtil.isVideoType(mediaItem.getMimeType())) {
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return MediaSendVideoFragment.newInstance(mediaItem.getUri());
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} else {
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throw new UnsupportedOperationException("Can only render images and videos. Found mimetype: '" + mediaItem.getMimeType() + "'");
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}
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}
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@Override
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public int getItemPosition(@NonNull Object object) {
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return POSITION_NONE;
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}
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@NonNull
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@Override
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public Object instantiateItem(@NonNull ViewGroup container, int position) {
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MediaSendPageFragment fragment = (MediaSendPageFragment) super.instantiateItem(container, position);
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fragments.put(position, fragment);
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Object state = savedState.get(fragment.getUri());
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if (state != null) {
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fragment.restoreState(state);
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}
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return fragment;
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}
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@Override
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public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
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MediaSendPageFragment fragment = (MediaSendPageFragment) object;
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Object state = fragment.saveState();
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if (state != null) {
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savedState.put(fragment.getUri(), state);
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}
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super.destroyItem(container, position, object);
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fragments.remove(position);
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}
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@Override
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public int getCount() {
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return media.size();
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}
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List<Media> getAllMedia() {
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return media;
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}
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void setMedia(@NonNull List<Media> media) {
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this.media.clear();
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this.media.addAll(media);
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notifyDataSetChanged();
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}
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Map<Uri, Object> getSavedState() {
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for (MediaSendPageFragment fragment : fragments.values()) {
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Object state = fragment.saveState();
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if (state != null) {
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savedState.put(fragment.getUri(), state);
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}
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}
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return new HashMap<>(savedState);
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}
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void saveAllState() {
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for (MediaSendPageFragment fragment : fragments.values()) {
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Object state = fragment.saveState();
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if (state != null) {
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savedState.put(fragment.getUri(), state);
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}
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}
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}
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void restoreState(@NonNull Map<Uri, Object> state) {
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savedState.clear();
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savedState.putAll(state);
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}
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@Nullable View getPlaybackControls(int position) {
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return fragments.containsKey(position) ? fragments.get(position).getPlaybackControls() : null;
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}
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}
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