implement favorited posts list

closes #4

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

@@ -0,0 +1,49 @@
+package org.joinmastodon.android.api.requests.accounts;
+
+import com.google.gson.reflect.TypeToken;
+
+import org.joinmastodon.android.api.MastodonAPIRequest;
+import org.joinmastodon.android.model.Status;
+
+import java.io.IOException;
+import java.util.List;
+
+import okhttp3.Response;
+
+public class GetFavourites extends MastodonAPIRequest<List<Status>>{
+    private String maxId;
+
+    public GetFavourites(String maxID, String minID, int limit){
+        super(HttpMethod.GET, "/favourites", new TypeToken<>(){});
+        if(maxID!=null)
+            addQueryParameter("max_id", maxID);
+        if(minID!=null)
+            addQueryParameter("min_id", minID);
+        if(limit>0)
+            addQueryParameter("limit", ""+limit);
+    }
+
+    @Override
+    public void validateAndPostprocessResponse(List<Status> respObj, Response httpResponse) throws IOException {
+        super.validateAndPostprocessResponse(respObj, httpResponse);
+        // <https://mastodon.social/api/v1/bookmarks?max_id=268962>; rel="next",
+        // <https://mastodon.social/api/v1/bookmarks?min_id=268981>; rel="prev"
+        String link=httpResponse.header("link");
+        // parsing link header by hand; using a library would be cleaner
+        // (also, the functionality should be part of the max id logics and implemented in MastodonAPIRequest)
+        if(link==null) return;
+        String maxIdEq="max_id=";
+        for(String s : link.split(",")) {
+            if(s.contains("rel=\"next\"")) {
+                int start=s.indexOf(maxIdEq)+maxIdEq.length();
+                int end=s.indexOf('>');
+                if(start<0 || start>end) return;
+                this.maxId=s.substring(start, end);
+            }
+        }
+    }
+
+    public String getMaxId() {
+        return maxId;
+    }
+}

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

@@ -0,0 +1,46 @@
+package org.joinmastodon.android.fragments;
+
+import android.os.Bundle;
+import org.joinmastodon.android.R;
+import org.joinmastodon.android.api.requests.accounts.GetFavourites;
+import org.joinmastodon.android.api.session.AccountSession;
+import org.joinmastodon.android.api.session.AccountSessionManager;
+import org.joinmastodon.android.model.Status;
+
+import java.util.List;
+
+import me.grishka.appkit.api.SimpleCallback;
+
+public class FavoritesListFragment extends StatusListFragment{
+
+    private String accountID;
+    private String lastMaxId=null;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState){
+        super.onCreate(savedInstanceState);
+        accountID=getArguments().getString("account");
+        AccountSession session=AccountSessionManager.getInstance().getAccount(accountID);
+        setTitle(R.string.favorited_posts);
+    }
+
+    @Override
+    protected void onShown(){
+        super.onShown();
+        if(!getArguments().getBoolean("noAutoLoad") && !loaded && !dataLoading)
+            loadData();
+    }
+
+    @Override
+    protected void doLoadData(int offset, int count) {
+        GetFavourites b=new GetFavourites(offset>0 ? lastMaxId : null, null, count);
+        currentRequest=b.setCallback(new SimpleCallback<>(this){
+            @Override
+            public void onSuccess(List<Status> result){
+                onDataLoaded(result, b.getMaxId()!=null);
+                lastMaxId=b.getMaxId();
+            }
+        })
+                .exec(accountID);
+    }
+}

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

@@ -526,6 +526,7 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 				MenuItem item=menu.getItem(i);
 				item.setVisible(item.getItemId()==R.id.share);
 			}
+			menu.findItem(R.id.favorites_list).setVisible(true);
 			return;
 		}
 		menu.findItem(R.id.mute).setTitle(getString(relationship.muting ? R.string.unmute_user : R.string.mute_user, account.getDisplayUsername()));
@@ -549,6 +550,11 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 			intent.setType("text/plain");
 			intent.putExtra(Intent.EXTRA_TEXT, account.url);
 			startActivity(Intent.createChooser(intent, item.getTitle()));
+		}else if(id==R.id.favorites_list) {
+			Bundle args=new Bundle();
+			args.putString("account", accountID);
+			args.putParcelable("profileAccount", Parcels.wrap(account));
+			Nav.go(getActivity(), FavoritesListFragment.class, args);
 		}else if(id==R.id.mute){
 			confirmToggleMuted();
 		}else if(id==R.id.block){

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

@@ -7,4 +7,5 @@
 	<item android:id="@+id/block_domain" android:title="@string/block_domain"/>
 	<item android:id="@+id/hide_boosts" android:title="@string/hide_boosts_from_user"/>
 	<item android:id="@+id/open_in_browser" android:title="@string/open_in_browser"/>
+	<item android:id="@+id/favorites_list" android:title="@string/favorited_posts" android:visible="false"/>
 </menu>

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

@@ -377,4 +377,5 @@
 	<!-- %s is file size -->
 	<string name="download_update">Download (%s)</string>
 	<string name="install_update">Installieren</string>
+	<string name="favorited_posts">Favorisierte Beiträge</string>
 </resources>

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

@@ -387,4 +387,5 @@
 	<string name="privacy_policy_title">Mastodon and your privacy</string>
 	<string name="privacy_policy_subtitle">Although the Mastodon app does not collect any data, the server you sign up through may have a different policy. Take a minute to review and agree to the Mastodon app privacy policy and your server\'s privacy policy.</string>
 	<string name="i_agree">I Agree</string>
+	<string name="favorited_posts">Favorited posts</string>
 </resources>