Show the profile header view if we know the username

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

@@ -135,6 +135,8 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 	private View actionButtonWrap;
 	private CustomDrawingOrderLinearLayout scrollableContent;
 	private ImageButton qrCodeButton;
+	private ProgressBar innerProgress;
+	private View actions;
 
 	private Account account;
 	private String accountID;
@@ -218,6 +220,8 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 		actionButtonWrap=content.findViewById(R.id.profile_action_btn_wrap);
 		scrollableContent=content.findViewById(R.id.scrollable_content);
 		qrCodeButton=content.findViewById(R.id.qr_code);
+		innerProgress=content.findViewById(R.id.profile_progress);
+		actions=content.findViewById(R.id.profile_actions);
 
 		avatar.setOutlineProvider(OutlineProviders.roundedRect(24));
 		avatar.setClipToOutline(true);
@@ -305,6 +309,8 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 		followingBtn.setOnClickListener(this::onFollowersOrFollowingClick);
 
 		username.setOnLongClickListener(v->{
+			if(account==null)
+				return true;
 			String username=account.acct;
 			if(!username.contains("@")){
 				username+="@"+AccountSessionManager.getInstance().getAccount(accountID).domain;
@@ -330,7 +336,11 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 		nameEdit.addTextChangedListener(new SimpleTextWatcher(e->editDirty=true));
 		bioEdit.addTextChangedListener(new SimpleTextWatcher(e->editDirty=true));
 
-		usernameDomain.setOnClickListener(v->new DecentralizationExplainerSheet(getActivity(), accountID, account).show());
+		usernameDomain.setOnClickListener(v->{
+			if(account==null)
+				return;
+			new DecentralizationExplainerSheet(getActivity(), accountID, account).show();
+		});
 		qrCodeButton.setOnClickListener(v->{
 			Bundle args=new Bundle();
 			args.putString("account", accountID);
@@ -461,6 +471,8 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 				return true;
 			}
 		});
+		if(!loaded)
+			bindHeaderViewForPreviewMaybe();
 	}
 
 	@Override
@@ -505,7 +517,41 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 		}
 	}
 
+	private void bindHeaderViewForPreviewMaybe(){
+		if(loaded)
+			return;
+		String username=getArguments().getString("accountUsername");
+		String domain=getArguments().getString("accountDomain");
+		if(TextUtils.isEmpty(username) || TextUtils.isEmpty(domain))
+			return;
+		content.setVisibility(View.VISIBLE);
+		progress.setVisibility(View.GONE);
+		errorView.setVisibility(View.GONE);
+		innerProgress.setVisibility(View.VISIBLE);
+		this.username.setText(username);
+		name.setText(username);
+		usernameDomain.setText(domain);
+		avatar.setImageResource(R.drawable.image_placeholder);
+		cover.setImageResource(R.drawable.image_placeholder);
+		actions.setVisibility(View.GONE);
+		bio.setVisibility(View.GONE);
+		countersLayout.setVisibility(View.GONE);
+		tabsDivider.setVisibility(View.GONE);
+	}
+
 	private void bindHeaderView(){
+		if(innerProgress.getVisibility()==View.VISIBLE){
+			TransitionManager.beginDelayedTransition(contentView, new TransitionSet()
+					.addTransition(new Fade(Fade.IN | Fade.OUT))
+					.excludeChildren(actions, true)
+					.setDuration(250)
+					.setInterpolator(CubicBezierInterpolator.DEFAULT)
+			);
+			innerProgress.setVisibility(View.GONE);
+			countersLayout.setVisibility(View.VISIBLE);
+			actions.setVisibility(View.VISIBLE);
+			tabsDivider.setVisibility(View.VISIBLE);
+		}
 		setTitle(account.displayName);
 		setSubtitle(getResources().getQuantityString(R.plurals.x_posts, (int)(account.statusesCount%1000), account.statusesCount));
 		ViewImageLoader.load(avatar, null, new UrlImageLoaderRequest(GlobalUserPreferences.playGifs ? account.avatar : account.avatarStatic, V.dp(100), V.dp(100)));
@@ -1082,6 +1128,8 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 	}
 
 	private void onAvatarClick(View v){
+		if(account==null)
+			return;
 		if(isInEditMode){
 			startImagePicker(AVATAR_RESULT);
 		}else{
@@ -1095,6 +1143,8 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 	}
 
 	private void onCoverClick(View v){
+		if(account==null)
+			return;
 		if(isInEditMode){
 			startImagePicker(COVER_RESULT);
 		}else{

mastodon/src/main/java/org/joinmastodon/android/ui/text/HtmlParser.java

@@ -86,6 +86,7 @@ public class HtmlParser{
 		// Hashtags in remote posts have remote URLs, these have local URLs so they don't match.
 //		Map<String, String> tagsByUrl=tags.stream().collect(Collectors.toMap(t->t.url, t->t.name));
 		Map<String, Hashtag> tagsByTag=tags.stream().distinct().collect(Collectors.toMap(t->t.name.toLowerCase(), Function.identity()));
+		Map<String, Mention> mentionsByID=mentions.stream().distinct().collect(Collectors.toMap(m->m.id, Function.identity()));
 
 		final SpannableStringBuilder ssb=new SpannableStringBuilder();
 		Jsoup.parseBodyFragment(source).body().traverse(new NodeVisitor(){
@@ -115,6 +116,7 @@ public class HtmlParser{
 								if(id!=null){
 									linkType=LinkSpan.Type.MENTION;
 									href=id;
+									linkObject=mentionsByID.get(id);
 								}else{
 									linkType=LinkSpan.Type.URL;
 								}

mastodon/src/main/java/org/joinmastodon/android/ui/text/LinkSpan.java

@@ -2,9 +2,12 @@ package org.joinmastodon.android.ui.text;
 
 import android.content.Context;
 import android.text.TextPaint;
+import android.text.TextUtils;
 import android.text.style.CharacterStyle;
 
+import org.joinmastodon.android.api.session.AccountSessionManager;
 import org.joinmastodon.android.model.Hashtag;
+import org.joinmastodon.android.model.Mention;
 import org.joinmastodon.android.ui.utils.UiUtils;
 
 public class LinkSpan extends CharacterStyle {
@@ -39,7 +42,21 @@ public class LinkSpan extends CharacterStyle {
 	public void onClick(Context context){
 		switch(getType()){
 			case URL -> UiUtils.openURL(context, accountID, link, parentObject);
-			case MENTION -> UiUtils.openProfileByID(context, accountID, link);
+			case MENTION -> {
+				String username, domain;
+				if(linkObject instanceof Mention m && !TextUtils.isEmpty(m.acct)){
+					String[] parts=m.acct.split("@", 2);
+					username=parts[0];
+					if(parts.length==2){
+						domain=parts[1];
+					}else{
+						domain=AccountSessionManager.get(accountID).domain;
+					}
+				}else{
+					username=domain=null;
+				}
+				UiUtils.openProfileByID(context, accountID, link, username, domain);
+			}
 			case HASHTAG -> {
 				if(linkObject instanceof Hashtag ht)
 					UiUtils.openHashtagTimeline(context, accountID, ht);

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

@@ -353,9 +353,17 @@ public class UiUtils{
 	}
 
 	public static void openProfileByID(Context context, String selfID, String id){
+		openProfileByID(context, selfID, id, null, null);
+	}
+
+	public static void openProfileByID(Context context, String selfID, String id, String username, String domain){
 		Bundle args=new Bundle();
 		args.putString("account", selfID);
 		args.putString("profileAccountID", id);
+		if(username!=null && domain!=null){
+			args.putString("accountUsername", username);
+			args.putString("accountDomain", domain);
+		}
 		Nav.go((Activity)context, ProfileFragment.class, args);
 	}
 

mastodon/src/main/res/layout/fragment_profile.xml

@@ -32,7 +32,7 @@
 						android:id="@+id/cover"
 						android:layout_width="match_parent"
 						android:layout_height="144dp"
-						android:background="#808080"
+						android:background="@drawable/image_placeholder"
 						android:contentDescription="@string/profile_header"
 						android:scaleType="centerCrop" />
 
@@ -134,6 +134,14 @@
 
 				</RelativeLayout>
 
+				<ProgressBar
+					android:id="@+id/profile_progress"
+					android:layout_width="50dp"
+					android:layout_height="50dp"
+					android:layout_gravity="center_horizontal"
+					android:layout_marginTop="16dp"
+					android:visibility="gone"/>
+
 				<org.joinmastodon.android.ui.views.LinkedTextView
 					android:id="@+id/bio"
 					android:layout_width="match_parent"
@@ -284,6 +292,7 @@
 				</org.joinmastodon.android.ui.views.FloatingHintEditTextLayout>
 				
 				<LinearLayout
+					android:id="@+id/profile_actions"
 					android:layout_width="match_parent"
 					android:layout_height="40dp"
 					android:orientation="horizontal"