bump version

README.md

@@ -11,6 +11,8 @@ Learn more about this app in the [blog post](https://blog.joinmastodon.org/2022/
   ([Pull request](https://github.com/mastodon/mastodon-android/pull/103)) and
   [set as default](https://github.com/sk22/mastodon-android-fork/tree/feature/enable-unlisted-as-default)
 * [Add "Federation" tab and change Discover tab order](https://github.com/sk22/mastodon-android-fork/tree/feature/add-federated-timeline)
+* [Add image description button and viewer](https://github.com/sk22/mastodon-android-fork/tree/feature/display-alt-text) ([Pull request](https://github.com/mastodon/mastodon-android/pull/129))
+* [Implement pinning posts and displaying pinned posts](https://github.com/sk22/mastodon-android-fork/tree/feature/pin-posts) ([Pull request](https://github.com/mastodon/mastodon-android/pull/140))
 
 ## Building
 
@@ -22,4 +24,4 @@ As this app is using Java 17 features, you need JDK 17 or newer to build it. Oth
 
 ## License
 
-This project is released under the [GPL-3 License](./LICENSE).
+This project is released under the [GPL-3 License](./LICENSE).

mastodon/build.gradle

@@ -6,11 +6,11 @@ plugins {
 android {
 	compileSdk 31
 	defaultConfig {
-		applicationId "org.joinmastodon.android"
+		applicationId "org.joinmastodon.android.sk"
 		minSdk 23
 		targetSdk 31
-		versionCode 4
-		versionName '1.1.0-dev+fork.1.0'
+		versionCode 7
+		versionName '1.1.1-dev+fork.7'
 		testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
 	}
 

mastodon/src/main/java/org/joinmastodon/android/api/MastodonErrorResponse.java

@@ -26,6 +26,8 @@ public class MastodonErrorResponse extends ErrorResponse{
 
 	@Override
 	public void showToast(Context context){
+		if(context==null)
+			return;
 		Toast.makeText(context, error, Toast.LENGTH_SHORT).show();
 	}
 }

mastodon/src/main/java/org/joinmastodon/android/api/requests/accounts/GetAccountStatuses.java

@@ -21,6 +21,7 @@ public class GetAccountStatuses extends MastodonAPIRequest<List<Status>>{
 		switch(filter){
 			case DEFAULT -> addQueryParameter("exclude_replies", "true");
 			case INCLUDE_REPLIES -> {}
+			case PINNED -> addQueryParameter("pinned", "true");
 			case MEDIA -> addQueryParameter("only_media", "true");
 			case NO_REBLOGS -> {
 				addQueryParameter("exclude_replies", "true");
@@ -32,6 +33,7 @@ public class GetAccountStatuses extends MastodonAPIRequest<List<Status>>{
 	public enum Filter{
 		DEFAULT,
 		INCLUDE_REPLIES,
+		PINNED,
 		MEDIA,
 		NO_REBLOGS
 	}

mastodon/src/main/java/org/joinmastodon/android/api/requests/oauth/CreateOAuthApp.java

@@ -11,9 +11,9 @@ public class CreateOAuthApp extends MastodonAPIRequest<Application>{
 	}
 
 	private static class Request{
-		public String clientName="Mastodon for Android";
+		public String clientName="Mastodon for Android (Fork)";
 		public String redirectUris=AccountSessionManager.REDIRECT_URI;
 		public String scopes=AccountSessionManager.SCOPE;
-		public String website="https://app.joinmastodon.org/android";
+		public String website="https://github.com/sk22/mastodon-android-fork";
 	}
 }

mastodon/src/main/java/org/joinmastodon/android/api/requests/statuses/SetStatusPinned.java

@@ -0,0 +1,11 @@
+package org.joinmastodon.android.api.requests.statuses;
+
+import org.joinmastodon.android.api.MastodonAPIRequest;
+import org.joinmastodon.android.model.Status;
+
+public class SetStatusPinned extends MastodonAPIRequest<Status>{
+	public SetStatusPinned(String id, boolean pinned){
+		super(HttpMethod.POST, "/statuses/"+id+"/"+(pinned ? "pin" : "unpin"), Status.class);
+		setRequestBody(new Object());
+	}
+}

mastodon/src/main/java/org/joinmastodon/android/events/StatusUnpinnedEvent.java

@@ -0,0 +1,11 @@
+package org.joinmastodon.android.events;
+
+public class StatusUnpinnedEvent {
+	public final String id;
+	public final String accountID;
+
+	public StatusUnpinnedEvent(String id, String accountID){
+		this.id=id;
+		this.accountID=accountID;
+	}
+}

mastodon/src/main/java/org/joinmastodon/android/fragments/AccountTimelineFragment.java

@@ -8,8 +8,10 @@ import org.joinmastodon.android.R;
 import org.joinmastodon.android.api.requests.accounts.GetAccountStatuses;
 import org.joinmastodon.android.api.session.AccountSessionManager;
 import org.joinmastodon.android.events.StatusCreatedEvent;
+import org.joinmastodon.android.events.StatusUnpinnedEvent;
 import org.joinmastodon.android.model.Account;
 import org.joinmastodon.android.model.Status;
+import org.joinmastodon.android.ui.displayitems.HeaderStatusDisplayItem;
 import org.parceler.Parcels;
 
 import java.util.Collections;
@@ -86,4 +88,24 @@ public class AccountTimelineFragment extends StatusListFragment{
 		}
 		prependItems(Collections.singletonList(ev.status), true);
 	}
+
+	protected void onStatusUnpinned(StatusUnpinnedEvent ev){
+		if(!ev.accountID.equals(accountID) || filter!=GetAccountStatuses.Filter.PINNED)
+			return;
+
+		Status status=getStatusByID(ev.id);
+		data.remove(status);
+		preloadedData.remove(status);
+		HeaderStatusDisplayItem item=findItemOfType(ev.id, HeaderStatusDisplayItem.class);
+		if(item==null)
+			return;
+		int index=displayItems.indexOf(item);
+		int lastIndex;
+		for(lastIndex=index;lastIndex<displayItems.size();lastIndex++){
+			if(!displayItems.get(lastIndex).parentID.equals(ev.id))
+				break;
+		}
+		displayItems.subList(index, lastIndex).clear();
+		adapter.notifyItemRangeRemoved(index, lastIndex-index);
+	}
 }

mastodon/src/main/java/org/joinmastodon/android/fragments/ComposeFragment.java

@@ -609,6 +609,7 @@ public class ComposeFragment extends MastodonToolbarFragment implements OnBackPr
 					@Override
 					public void onSuccess(Status result){
 						wm.removeView(sendingOverlay);
+						sendingOverlay=null;
 						Nav.finish(ComposeFragment.this);
 						E.post(new StatusCreatedEvent(result));
 						if(replyTo!=null){
@@ -620,6 +621,7 @@ public class ComposeFragment extends MastodonToolbarFragment implements OnBackPr
 					@Override
 					public void onError(ErrorResponse error){
 						wm.removeView(sendingOverlay);
+						sendingOverlay=null;
 						sendProgress.setVisibility(View.GONE);
 						sendError.setVisibility(View.VISIBLE);
 						publishButton.setEnabled(true);
@@ -647,6 +649,8 @@ public class ComposeFragment extends MastodonToolbarFragment implements OnBackPr
 			confirmDiscardDraftAndFinish();
 			return true;
 		}
+		if(sendingOverlay!=null)
+			return true;
 		return false;
 	}
 

mastodon/src/main/java/org/joinmastodon/android/fragments/ProfileFragment.java

@@ -101,7 +101,7 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 	private ProgressBarButton actionButton;
 	private ViewPager2 pager;
 	private NestedRecyclerScrollView scrollView;
-	private AccountTimelineFragment postsFragment, postsWithRepliesFragment, mediaFragment;
+	private AccountTimelineFragment postsFragment, postsWithRepliesFragment, pinnedPostsFragment, mediaFragment;
 	private ProfileAboutFragment aboutFragment;
 	private TabLayout tabbar;
 	private SwipeRefreshLayout refreshLayout;
@@ -128,6 +128,7 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 	private View fab;
 	private WindowInsets childInsets;
 	private PhotoViewer currentPhotoViewer;
+	private boolean editModeLoading;
 
 	public ProfileFragment(){
 		super(R.layout.loader_fragment_overlay_toolbar);
@@ -208,14 +209,15 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 			}
 		};
 
-		tabViews=new FrameLayout[4];
+		tabViews=new FrameLayout[5];
 		for(int i=0;i<tabViews.length;i++){
 			FrameLayout tabView=new FrameLayout(getActivity());
 			tabView.setId(switch(i){
 				case 0 -> R.id.profile_posts;
 				case 1 -> R.id.profile_posts_with_replies;
-				case 2 -> R.id.profile_media;
-				case 3 -> R.id.profile_about;
+				case 2 -> R.id.profile_pinned_posts;
+				case 3 -> R.id.profile_media;
+				case 4 -> R.id.profile_about;
 				default -> throw new IllegalStateException("Unexpected value: "+i);
 			});
 			tabView.setVisibility(View.GONE);
@@ -223,7 +225,7 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 			tabViews[i]=tabView;
 		}
 
-		pager.setOffscreenPageLimit(4);
+		pager.setOffscreenPageLimit(5);
 		pager.setAdapter(new ProfilePagerAdapter());
 		pager.getLayoutParams().height=getResources().getDisplayMetrics().heightPixels;
 
@@ -239,8 +241,9 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 				tab.setText(switch(position){
 					case 0 -> R.string.posts;
 					case 1 -> R.string.posts_and_replies;
-					case 2 -> R.string.media;
-					case 3 -> R.string.profile_about;
+					case 2 -> R.string.pinned_posts;
+					case 3 -> R.string.media;
+					case 4 -> R.string.profile_about;
 					default -> throw new IllegalStateException();
 				});
 			}
@@ -297,6 +300,8 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 								postsFragment.onRefresh();
 							if(postsWithRepliesFragment.loaded)
 								postsWithRepliesFragment.onRefresh();
+							if(pinnedPostsFragment.loaded)
+								pinnedPostsFragment.onRefresh();
 							if(mediaFragment.loaded)
 								mediaFragment.onRefresh();
 						}
@@ -321,6 +326,7 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 		if(postsFragment==null){
 			postsFragment=AccountTimelineFragment.newInstance(accountID, account, GetAccountStatuses.Filter.DEFAULT, true);
 			postsWithRepliesFragment=AccountTimelineFragment.newInstance(accountID, account, GetAccountStatuses.Filter.INCLUDE_REPLIES, false);
+			pinnedPostsFragment =AccountTimelineFragment.newInstance(accountID, account, GetAccountStatuses.Filter.PINNED, false);
 			mediaFragment=AccountTimelineFragment.newInstance(accountID, account, GetAccountStatuses.Filter.MEDIA, false);
 			aboutFragment=new ProfileAboutFragment();
 			aboutFragment.setFields(fields);
@@ -401,6 +407,7 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 		if(postsFragment!=null && postsFragment.isAdded() && childInsets!=null){
 			postsFragment.onApplyWindowInsets(childInsets);
 			postsWithRepliesFragment.onApplyWindowInsets(childInsets);
+			pinnedPostsFragment.onApplyWindowInsets(childInsets);
 			mediaFragment.onApplyWindowInsets(childInsets);
 		}
 	}
@@ -636,8 +643,9 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 		return switch(page){
 			case 0 -> postsFragment;
 			case 1 -> postsWithRepliesFragment;
-			case 2 -> mediaFragment;
-			case 3 -> aboutFragment;
+			case 2 -> pinnedPostsFragment;
+			case 3 -> mediaFragment;
+			case 4 -> aboutFragment;
 			default -> throw new IllegalStateException();
 		};
 	}
@@ -664,17 +672,26 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 	}
 
 	private void loadAccountInfoAndEnterEditMode(){
+		if(editModeLoading)
+			return;
+		editModeLoading=true;
 		setActionProgressVisible(true);
 		new GetOwnAccount()
 				.setCallback(new Callback<>(){
 					@Override
 					public void onSuccess(Account result){
+						editModeLoading=false;
+						if(getActivity()==null)
+							return;
 						enterEditMode(result);
 						setActionProgressVisible(false);
 					}
 
 					@Override
 					public void onError(ErrorResponse error){
+						editModeLoading=false;
+						if(getActivity()==null)
+							return;
 						error.showToast(getActivity());
 						setActionProgressVisible(false);
 					}
@@ -689,9 +706,9 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 		invalidateOptionsMenu();
 		pager.setUserInputEnabled(false);
 		actionButton.setText(R.string.done);
-		pager.setCurrentItem(3);
+		pager.setCurrentItem(4);
 		ArrayList<Animator> animators=new ArrayList<>();
-		for(int i=0;i<3;i++){
+		for(int i=0;i<tabViews.length-1;i++){
 			animators.add(ObjectAnimator.ofFloat(tabbar.getTabAt(i).view, View.ALPHA, .3f));
 			tabbar.getTabAt(i).view.setEnabled(false);
 		}
@@ -732,7 +749,7 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 		invalidateOptionsMenu();
 		ArrayList<Animator> animators=new ArrayList<>();
 		actionButton.setText(R.string.edit_profile);
-		for(int i=0;i<3;i++){
+		for(int i=0;i<tabViews.length-1;i++){
 			animators.add(ObjectAnimator.ofFloat(tabbar.getTabAt(i).view, View.ALPHA, 1f));
 		}
 		animators.add(ObjectAnimator.ofInt(avatar.getForeground(), "alpha", 0));
@@ -750,7 +767,7 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 		set.addListener(new AnimatorListenerAdapter(){
 			@Override
 			public void onAnimationEnd(Animator animation){
-				for(int i=0;i<3;i++){
+				for(int i=0;i<tabViews.length-1;i++){
 					tabbar.getTabAt(i).view.setEnabled(true);
 				}
 				pager.setUserInputEnabled(true);
@@ -927,7 +944,7 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 
 		@Override
 		public int getItemCount(){
-			return loaded ? 4 : 0;
+			return loaded ? tabViews.length : 0;
 		}
 
 		@Override

mastodon/src/main/java/org/joinmastodon/android/fragments/ScrollableToTop.java

@@ -13,6 +13,8 @@ public interface ScrollableToTop{
 	 * @param list
 	 */
 	default void smoothScrollRecyclerViewToTop(RecyclerView list){
+		if(list==null) // TODO find out why this happens because it should not be possible
+			return;
 		if(list.getChildCount()>0 && list.getChildAdapterPosition(list.getChildAt(0))>10){
 			list.scrollToPosition(0);
 			list.getViewTreeObserver().addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener(){

mastodon/src/main/java/org/joinmastodon/android/fragments/StatusListFragment.java

@@ -9,6 +9,7 @@ import org.joinmastodon.android.events.PollUpdatedEvent;
 import org.joinmastodon.android.events.StatusCountersUpdatedEvent;
 import org.joinmastodon.android.events.StatusCreatedEvent;
 import org.joinmastodon.android.events.StatusDeletedEvent;
+import org.joinmastodon.android.events.StatusUnpinnedEvent;
 import org.joinmastodon.android.model.Status;
 import org.joinmastodon.android.ui.displayitems.ExtendedFooterStatusDisplayItem;
 import org.joinmastodon.android.ui.displayitems.FooterStatusDisplayItem;
@@ -61,6 +62,8 @@ public abstract class StatusListFragment extends BaseStatusListFragment<Status>{
 
 	protected void onStatusCreated(StatusCreatedEvent ev){}
 
+	protected void onStatusUnpinned(StatusUnpinnedEvent ev){}
+
 	protected Status getContentStatusByID(String id){
 		Status s=getStatusByID(id);
 		return s==null ? null : s.getContentStatus();
@@ -131,6 +134,11 @@ public abstract class StatusListFragment extends BaseStatusListFragment<Status>{
 			StatusListFragment.this.onStatusCreated(ev);
 		}
 
+		@Subscribe
+		public void onStatusUnpinned(StatusUnpinnedEvent ev){
+			StatusListFragment.this.onStatusUnpinned(ev);
+		}
+
 		@Subscribe
 		public void onPollUpdated(PollUpdatedEvent ev){
 			if(!ev.accountID.equals(accountID))

mastodon/src/main/java/org/joinmastodon/android/fragments/account_list/BaseAccountListFragment.java

@@ -22,6 +22,7 @@ import org.joinmastodon.android.GlobalUserPreferences;
 import org.joinmastodon.android.R;
 import org.joinmastodon.android.api.requests.accounts.GetAccountRelationships;
 import org.joinmastodon.android.api.requests.accounts.SetAccountFollowed;
+import org.joinmastodon.android.api.session.AccountSessionManager;
 import org.joinmastodon.android.fragments.ProfileFragment;
 import org.joinmastodon.android.fragments.report.ReportReasonChoiceFragment;
 import org.joinmastodon.android.model.Account;
@@ -234,7 +235,7 @@ public abstract class BaseAccountListFragment extends BaseRecyclerFragment<BaseA
 
 		public void bindRelationship(){
 			Relationship rel=relationships.get(item.account.id);
-			if(rel==null){
+			if(rel==null || AccountSessionManager.getInstance().isSelf(accountID, item.account)){
 				button.setVisibility(View.GONE);
 			}else{
 				button.setVisibility(View.VISIBLE);

mastodon/src/main/java/org/joinmastodon/android/fragments/discover/SearchFragment.java

@@ -117,6 +117,8 @@ public class SearchFragment extends BaseStatusListFragment<SearchResult>{
 	protected void doLoadData(int offset, int count){
 		if(isInRecentMode()){
 			AccountSessionManager.getInstance().getAccount(accountID).getCacheController().getRecentSearches(sr->{
+				if(getActivity()==null)
+					return;
 				unfilteredResults=sr;
 				prevDisplayItems=new ArrayList<>(displayItems);
 				onDataLoaded(sr, false);

mastodon/src/main/java/org/joinmastodon/android/ui/ImageDescriptionSheet.java

@@ -0,0 +1,87 @@
+package org.joinmastodon.android.ui;
+
+import android.app.Activity;
+import android.graphics.Typeface;
+import android.graphics.drawable.ColorDrawable;
+import android.os.Build;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.WindowInsets;
+import android.widget.FrameLayout;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.LinearLayoutManager;
+
+import org.joinmastodon.android.R;
+import org.joinmastodon.android.model.Attachment;
+import org.joinmastodon.android.ui.utils.UiUtils;
+
+import me.grishka.appkit.utils.SingleViewRecyclerAdapter;
+import me.grishka.appkit.utils.V;
+import me.grishka.appkit.views.BottomSheet;
+import me.grishka.appkit.views.UsableRecyclerView;
+
+public class ImageDescriptionSheet extends BottomSheet{
+	private UsableRecyclerView list;
+
+	public ImageDescriptionSheet(@NonNull Activity activity, Attachment attachment){
+		super(activity);
+
+		View handleView=new View(activity);
+		handleView.setBackgroundResource(R.drawable.bg_bottom_sheet_handle);
+		ViewGroup handle=new FrameLayout(activity);
+		handle.addView(handleView);
+		handle.setLayoutParams(new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, V.dp(24)));
+
+		TextView textView = new TextView(activity);
+		if (attachment.description == null || attachment.description.isEmpty()) {
+			textView.setText(R.string.media_no_description);
+			textView.setTypeface(null, Typeface.ITALIC);
+		} else {
+			textView.setText(attachment.description);
+			textView.setTextIsSelectable(true);
+		}
+
+		TextView heading=new TextView(activity);
+		heading.setText(R.string.image_description);
+		heading.setAllCaps(true);
+		heading.setTypeface(null, Typeface.BOLD);
+		heading.setPadding(0, V.dp(24), 0, V.dp(8));
+
+		LinearLayout linearLayout = new LinearLayout(activity);
+		linearLayout.setOrientation(LinearLayout.VERTICAL);
+		linearLayout.setPadding(V.dp(24), 0, V.dp(24), 0);
+		linearLayout.addView(heading);
+		linearLayout.addView(textView);
+
+		FrameLayout layout=new FrameLayout(activity);
+		layout.addView(handle);
+		layout.addView(linearLayout);
+
+		list=new UsableRecyclerView(activity);
+		list.setLayoutManager(new LinearLayoutManager(activity));
+		list.setBackgroundResource(R.drawable.bg_bottom_sheet);
+		list.setAdapter(new SingleViewRecyclerAdapter(layout));
+		list.setClipToPadding(false);
+
+		setContentView(list);
+		setNavigationBarBackground(new ColorDrawable(UiUtils.getThemeColor(activity, R.attr.colorWindowBackground)), !UiUtils.isDarkTheme());
+	}
+
+	@Override
+	protected void onWindowInsetsUpdated(WindowInsets insets){
+		if(Build.VERSION.SDK_INT>=29){
+			int tappableBottom=insets.getTappableElementInsets().bottom;
+			int insetBottom=insets.getSystemWindowInsetBottom();
+			if(tappableBottom==0 && insetBottom>0){
+				list.setPadding(0, 0, 0, V.dp(48)-insetBottom);
+			}else{
+				list.setPadding(0, 0, 0, V.dp(24));
+			}
+		}else{
+			list.setPadding(0, 0, 0, V.dp(24));
+		}
+	}
+}

mastodon/src/main/java/org/joinmastodon/android/ui/displayitems/HeaderStatusDisplayItem.java

@@ -137,6 +137,8 @@ public class HeaderStatusDisplayItem extends StatusDisplayItem{
 				int id=menuItem.getItemId();
 				if(id==R.id.delete){
 					UiUtils.confirmDeletePost(item.parentFragment.getActivity(), item.parentFragment.getAccountID(), item.status, s->{});
+				}else if(id==R.id.pin || id==R.id.unpin){
+					UiUtils.confirmPinPost(item.parentFragment.getActivity(), item.parentFragment.getAccountID(), item.status, !item.status.pinned, s->{});
 				}else if(id==R.id.mute){
 					UiUtils.confirmToggleMuteUser(item.parentFragment.getActivity(), item.parentFragment.getAccountID(), account, relationship!=null && relationship.muting, r->{});
 				}else if(id==R.id.block){
@@ -250,6 +252,8 @@ public class HeaderStatusDisplayItem extends StatusDisplayItem{
 			Menu menu=optionsMenu.getMenu();
 			boolean isOwnPost=AccountSessionManager.getInstance().isSelf(item.parentFragment.getAccountID(), account);
 			menu.findItem(R.id.delete).setVisible(item.status!=null && isOwnPost);
+			menu.findItem(R.id.pin).setVisible(item.status!=null && isOwnPost && !item.status.pinned);
+			menu.findItem(R.id.unpin).setVisible(item.status!=null && isOwnPost && item.status.pinned);
 			menu.findItem(R.id.open_in_browser).setVisible(item.status!=null);
 			MenuItem blockDomain=menu.findItem(R.id.block_domain);
 			MenuItem mute=menu.findItem(R.id.mute);

mastodon/src/main/java/org/joinmastodon/android/ui/photoviewer/PhotoViewer.java

@@ -19,6 +19,7 @@ import android.media.AudioManager;
 import android.media.MediaPlayer;
 import android.media.MediaScannerConnection;
 import android.net.Uri;
+import android.opengl.Visibility;
 import android.os.Build;
 import android.os.Environment;
 import android.os.SystemClock;
@@ -48,6 +49,7 @@ import android.widget.Toolbar;
 import org.joinmastodon.android.R;
 import org.joinmastodon.android.api.MastodonAPIController;
 import org.joinmastodon.android.model.Attachment;
+import org.joinmastodon.android.ui.ImageDescriptionSheet;
 import org.joinmastodon.android.ui.M3AlertDialogBuilder;
 
 import java.io.File;
@@ -97,6 +99,7 @@ public class PhotoViewer implements ZoomPanView.Listener{
 	private TextView videoTimeView;
 	private ImageButton videoPlayPauseButton;
 	private View videoControls;
+	private MenuItem imageDescriptionButton;
 	private boolean uiVisible=true;
 	private AudioManager.OnAudioFocusChangeListener audioFocusListener=this::onAudioFocusChanged;
 	private Runnable uiAutoHider=()->{
@@ -174,11 +177,24 @@ public class PhotoViewer implements ZoomPanView.Listener{
 		toolbarWrap=uiOverlay.findViewById(R.id.toolbar_wrap);
 		toolbar=uiOverlay.findViewById(R.id.toolbar);
 		toolbar.setNavigationOnClickListener(v->onStartSwipeToDismissTransition(0));
-		toolbar.getMenu().add(R.string.download).setIcon(R.drawable.ic_fluent_arrow_download_24_regular).setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
-		toolbar.setOnMenuItemClickListener(item->{
-			saveCurrentFile();
-			return true;
-		});
+		imageDescriptionButton = toolbar.getMenu()
+				.add(R.string.image_description)
+				.setIcon(R.drawable.ic_fluent_image_alt_text_24_regular)
+				.setVisible(attachments.get(pager.getCurrentItem()).description != null
+						&& !attachments.get(pager.getCurrentItem()).description.isEmpty())
+				.setOnMenuItemClickListener(item -> {
+					new ImageDescriptionSheet(activity,attachments.get(pager.getCurrentItem())).show();
+					return true;
+				});
+		imageDescriptionButton.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
+		toolbar.getMenu()
+				.add(R.string.download)
+				.setIcon(R.drawable.ic_fluent_arrow_download_24_regular)
+				.setOnMenuItemClickListener(item -> {
+					saveCurrentFile();
+					return true;
+				})
+				.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
 		uiOverlay.setAlpha(0f);
 		videoControls=uiOverlay.findViewById(R.id.video_player_controls);
 		videoSeekBar=uiOverlay.findViewById(R.id.seekbar);
@@ -374,6 +390,8 @@ public class PhotoViewer implements ZoomPanView.Listener{
 	private void onPageChanged(int index){
 		currentIndex=index;
 		Attachment att=attachments.get(index);
+		imageDescriptionButton.setVisible(att.description != null && !att.description.isEmpty());
+		toolbar.invalidate();
 		V.setVisibilityAnimated(videoControls, att.type==Attachment.Type.VIDEO ? View.VISIBLE : View.GONE);
 		if(att.type==Attachment.Type.VIDEO){
 			videoSeekBar.setSecondaryProgress(0);

mastodon/src/main/java/org/joinmastodon/android/ui/utils/UiUtils.java

@@ -2,6 +2,7 @@ package org.joinmastodon.android.ui.utils;
 
 import android.annotation.SuppressLint;
 import android.app.Activity;
+import android.content.ActivityNotFoundException;
 import android.content.Context;
 import android.content.Intent;
 import android.content.res.ColorStateList;
@@ -10,7 +11,6 @@ import android.content.res.TypedArray;
 import android.database.Cursor;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
-import android.graphics.Typeface;
 import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
 import android.graphics.drawable.InsetDrawable;
@@ -29,6 +29,7 @@ import android.webkit.MimeTypeMap;
 import android.widget.Button;
 import android.widget.PopupMenu;
 import android.widget.TextView;
+import android.widget.Toast;
 
 import org.joinmastodon.android.E;
 import org.joinmastodon.android.GlobalUserPreferences;
@@ -40,8 +41,10 @@ import org.joinmastodon.android.api.requests.accounts.SetAccountMuted;
 import org.joinmastodon.android.api.requests.accounts.SetDomainBlocked;
 import org.joinmastodon.android.api.requests.statuses.DeleteStatus;
 import org.joinmastodon.android.api.requests.statuses.GetStatusByID;
+import org.joinmastodon.android.api.requests.statuses.SetStatusPinned;
 import org.joinmastodon.android.api.session.AccountSessionManager;
 import org.joinmastodon.android.events.StatusDeletedEvent;
+import org.joinmastodon.android.events.StatusUnpinnedEvent;
 import org.joinmastodon.android.fragments.HashtagTimelineFragment;
 import org.joinmastodon.android.fragments.ProfileFragment;
 import org.joinmastodon.android.fragments.ThreadFragment;
@@ -87,13 +90,17 @@ public class UiUtils{
 	private UiUtils(){}
 
 	public static void launchWebBrowser(Context context, String url){
-		if(GlobalUserPreferences.useCustomTabs){
-			new CustomTabsIntent.Builder()
-					.setShowTitle(true)
-					.build()
-					.launchUrl(context, Uri.parse(url));
-		}else{
-			context.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
+		try{
+			if(GlobalUserPreferences.useCustomTabs){
+				new CustomTabsIntent.Builder()
+						.setShowTitle(true)
+						.build()
+						.launchUrl(context, Uri.parse(url));
+			}else{
+				context.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
+			}
+		}catch(ActivityNotFoundException x){
+			Toast.makeText(context, R.string.no_app_to_handle_action, Toast.LENGTH_SHORT).show();
 		}
 	}
 
@@ -343,6 +350,31 @@ public class UiUtils{
 		});
 	}
 
+	public static void confirmPinPost(Activity activity, String accountID, Status status, boolean pinned, Consumer<Status> resultCallback){
+		showConfirmationAlert(activity,
+				pinned ? R.string.confirm_pin_post_title : R.string.confirm_unpin_post_title,
+				pinned ? R.string.confirm_pin_post : R.string.confirm_unpin_post,
+				pinned ? R.string.pin_post : R.string.unpin_post,
+				()->{
+					new SetStatusPinned(status.id, pinned)
+							.setCallback(new Callback<>() {
+								@Override
+								public void onSuccess(Status result) {
+									resultCallback.accept(result);
+									if (!result.pinned)
+										E.post(new StatusUnpinnedEvent(status.id, accountID));
+								}
+
+								@Override
+								public void onError(ErrorResponse error) {
+									error.showToast(activity);
+								}
+							})
+							.wrapProgress(activity, pinned ? R.string.pinning : R.string.unpinning, false)
+							.exec(accountID);
+				});
+	}
+
 	public static void setRelationshipToActionButton(Relationship relationship, Button button){
 		boolean secondaryStyle;
 		if(relationship.blocking){

mastodon/src/main/res/drawable/ic_fluent_image_alt_text_24_regular.xml

@@ -0,0 +1,3 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android" android:width="24dp" android:height="24dp" android:viewportWidth="24" android:viewportHeight="24">
+    <path android:pathData="M1 3c0-1.105 0.895-2 2-2h7c1.105 0 2 0.895 2 2v6c0 1.105-0.895 2-2 2H3c-1.105 0-2-0.895-2-2V3zm2.5 1C3.224 4 3 4.224 3 4.5S3.224 5 3.5 5h6C9.776 5 10 4.776 10 4.5S9.776 4 9.5 4h-6zm0 3C3.224 7 3 7.224 3 7.5S3.224 8 3.5 8h6C9.776 8 10 7.776 10 7.5S9.776 7 9.5 7h-6zM4 12h1.5v6.75c0 0.208 0.036 0.408 0.103 0.594l5.823-5.701c0.833-0.816 2.142-0.854 3.02-0.116l0.128 0.116 5.822 5.702c0.067-0.186 0.104-0.386 0.104-0.595V7.25c0-0.966-0.784-1.75-1.75-1.75H13V4h5.75C20.545 4 22 5.455 22 7.25v11.5c0 1.795-1.455 3.25-3.25 3.25H7.25C5.455 22 4 20.545 4 18.75V12zm15.33 8.401l-5.805-5.686c-0.265-0.26-0.675-0.283-0.966-0.071l-0.084 0.07-5.807 5.687C6.85 20.465 7.046 20.5 7.25 20.5h11.5c0.203 0 0.399-0.035 0.58-0.099zM16.253 7.5c1.244 0 2.252 1.008 2.252 2.252 0 1.244-1.008 2.252-2.252 2.252-1.244 0-2.252-1.008-2.252-2.252C14 8.508 15.008 7.5 16.252 7.5zm0 1.5C15.837 9 15.5 9.337 15.5 9.752s0.337 0.752 0.752 0.752c0.416 0 0.752-0.336 0.752-0.752C17.004 9.337 16.667 9 16.252 9z" android:fillColor="@color/fluent_default_icon_tint"/>
+</vector>

mastodon/src/main/res/menu/post.xml

@@ -1,6 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <menu xmlns:android="http://schemas.android.com/apk/res/android">
 	<item android:id="@+id/delete" android:title="@string/delete"/>
+	<item android:id="@+id/pin" android:title="@string/pin_post"/>
+	<item android:id="@+id/unpin" android:title="@string/unpin_post"/>
 	<item android:id="@+id/mute" android:title="@string/mute_user"/>
 	<item android:id="@+id/block" android:title="@string/block_user"/>
 	<item android:id="@+id/block_domain" android:title="@string/block_domain"/>

mastodon/src/main/res/values-de-rDE/strings.xml

@@ -42,6 +42,7 @@
 	</plurals>
 	<string name="posts">Beiträge</string>
 	<string name="posts_and_replies">Beiträge und Antworten</string>
+	<string name="pinned_posts">Angeheftet</string>
 	<string name="media">Medien</string>
 	<string name="profile_about">Über</string>
 	<string name="button_follow">Folgen</string>
@@ -124,6 +125,14 @@
 	<string name="confirm_delete_title">Beitrag löschen</string>
 	<string name="confirm_delete">Bist du dir sicher, dass du den Beitrag löschen möchtest?</string>
 	<string name="deleting">Wird gelöscht…</string>
+	<string name="pin_post">An Profil anheften</string>
+	<string name="confirm_pin_post_title">Beitrag an Profil anheften</string>
+	<string name="confirm_pin_post">Möchtest du den Beitrag an dein Profil anheften?</string>
+	<string name="pinning">Wird angeheftet…</string>
+	<string name="unpin_post">Von Profil lösen</string>
+	<string name="confirm_unpin_post_title">Angehefteten Beitrag von Profil lösen</string>
+	<string name="confirm_unpin_post">Bist du dir sicher, dass du den angehefteten Beitrag von deinem Profil lösen möchtest?</string>
+	<string name="unpinning">Wird vom Profil gelöst…</string>
 	<string name="notification_channel_audio_player">Audiowiedergabe</string>
 	<string name="play">Abspielen</string>
 	<string name="pause">Pausieren</string>
@@ -203,6 +212,7 @@
 	<string name="resent_email">Bestätigungs-E-Mail gesendet</string>
 	<string name="compose_hint">Was gibt\'s Neues?</string>
 	<string name="content_warning">Inhaltswarnung</string>
+	<string name="image_description">Bildbeschreibung</string>
 	<string name="add_image_description">Füge eine Bildbeschreibung hinzu…</string>
 	<string name="retry_upload">Upload erneut versuchen</string>
 	<string name="image_upload_failed">Fehler beim Hochladen des Bildes</string>

mastodon/src/main/res/values/ids.xml

@@ -4,6 +4,7 @@
 
 	<item name="profile_posts" type="id"/>
 	<item name="profile_posts_with_replies" type="id"/>
+	<item name="profile_pinned_posts" type="id"/>
 	<item name="profile_media" type="id"/>
 	<item name="profile_about" type="id"/>
 	

mastodon/src/main/res/values/strings.xml

@@ -47,6 +47,7 @@
 	</plurals>
 	<string name="posts">Posts</string>
 	<string name="posts_and_replies">Posts and Replies</string>
+	<string name="pinned_posts">Pinned</string>
 	<string name="media">Media</string>
 	<string name="profile_about">About</string>
 	<string name="button_follow">Follow</string>
@@ -129,6 +130,14 @@
 	<string name="confirm_delete_title">Delete Post</string>
 	<string name="confirm_delete">Are you sure you want to delete this post?</string>
 	<string name="deleting">Deleting…</string>
+	<string name="pin_post">Pin to profile</string>
+	<string name="confirm_pin_post_title">Pin post to profile</string>
+	<string name="confirm_pin_post">Do you want to pin this post to your profile?</string>
+	<string name="pinning">Pinning post…</string>
+	<string name="unpin_post">Unpin from profile</string>
+	<string name="confirm_unpin_post_title">Unpin post from profile</string>
+	<string name="confirm_unpin_post">Are you sure you want to unpin this post?</string>
+	<string name="unpinning">Unpinning post…</string>
 	<string name="notification_channel_audio_player">Audio playback</string>
 	<string name="play">Play</string>
 	<string name="pause">Pause</string>
@@ -209,6 +218,7 @@
 	<string name="compose_hint">Type or paste what\'s on your mind</string>
 	<string name="content_warning">Content warning</string>
 	<string name="add_image_description">Add image description…</string>
+	<string name="image_description">Image description</string>
 	<string name="retry_upload">Retry upload</string>
 	<string name="image_upload_failed">Image failed to upload</string>
 	<string name="video_upload_failed">Video failed to upload</string>