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With lazy loading of contributions (#3566)

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Vivek Maskara 2020-05-28 04:54:41 -07:00 • committed by GitHub
parent c216fdf0d4
commit d863a404f1
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34 changed files with 1397 additions and 928 deletions
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39
app/src/main/java/fr/free/nrw/commons/media/MediaClient.java
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@ -32,6 +32,7 @@ public class MediaClient {
//OkHttpJsonApiClient used JsonKvStore for this. I don't know why.
private Map<String, Map<String, String>> continuationStore;
private Map<String, Boolean> continuationExists;
public static final String NO_CAPTION = "No caption";
private static final String NO_DEPICTION = "No depiction";
@ -40,6 +41,7 @@ public class MediaClient {
this.mediaInterface = mediaInterface;
this.mediaDetailInterface = mediaDetailInterface;
this.continuationStore = new HashMap<>();
this.continuationExists = new HashMap<>();
}
/**
@ -83,6 +85,36 @@ public class MediaClient {
}
/**
* This method takes the userName as input and returns a list of Media objects filtered using
* allimages query It uses the allimages query API to get the images contributed by the userName,
* 10 at a time.
*
* @param userName the username
* @return
*/
public Single<List<Media>> getMediaListForUser(String userName) {
Map<String, String> continuation =
continuationStore.containsKey("user_" + userName)
? continuationStore.get("user_" + userName)
: Collections.emptyMap();
return responseToMediaList(mediaInterface
.getMediaListForUser(userName, 10, continuation), "user_" + userName);
}
/**
* Check if media for user has reached the end of the list.
* @param userName
* @return
*/
public boolean doesMediaListForUserHaveMorePages(String userName) {
final String key = "user_" + userName;
if(continuationExists.containsKey(key)) {
return continuationExists.get(key);
}
return true;
}
/**
* This method takes a keyword as input and returns a list of Media objects filtered using image generator query
* It uses the generator query API to get the images searched using a query, 10 at a time.
@ -106,7 +138,12 @@ public class MediaClient {
|| null == mwQueryResponse.query().pages()) {
return Observable.empty();
}
continuationStore.put(key, mwQueryResponse.continuation());
if(mwQueryResponse.continuation() != null) {
continuationStore.put(key, mwQueryResponse.continuation());
continuationExists.put(key, true);
} else {
continuationExists.put(key, false);
}
return Observable.fromIterable(mwQueryResponse.query().pages());
})
.map(Media::from)

5
app/src/main/java/fr/free/nrw/commons/media/MediaDetailPagerFragment.java
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@ -23,26 +23,21 @@ import butterknife.ButterKnife;
import com.google.android.material.snackbar.Snackbar;
import fr.free.nrw.commons.Media;
import fr.free.nrw.commons.R;
import fr.free.nrw.commons.auth.SessionManager;
import fr.free.nrw.commons.bookmarks.Bookmark;
import fr.free.nrw.commons.bookmarks.pictures.BookmarkPicturesContentProvider;
import fr.free.nrw.commons.bookmarks.pictures.BookmarkPicturesDao;
import fr.free.nrw.commons.category.CategoryImagesCallback;
import fr.free.nrw.commons.contributions.Contribution;
import fr.free.nrw.commons.di.CommonsDaggerSupportFragment;
import fr.free.nrw.commons.kvstore.JsonKvStore;
import fr.free.nrw.commons.utils.DownloadUtils;
import fr.free.nrw.commons.utils.ImageUtils;
import fr.free.nrw.commons.utils.NetworkUtils;
import fr.free.nrw.commons.utils.ViewUtil;
import javax.inject.Inject;
import javax.inject.Named;
import timber.log.Timber;
public class MediaDetailPagerFragment extends CommonsDaggerSupportFragment implements ViewPager.OnPageChangeListener {
@Inject SessionManager sessionManager;
@Inject @Named("default_preferences") JsonKvStore store;
@Inject BookmarkPicturesDao bookmarkDao;
@BindView(R.id.mediaDetailsPager) ViewPager pager;

44
app/src/main/java/fr/free/nrw/commons/media/MediaInterface.java
View file

@ -1,11 +1,9 @@
package fr.free.nrw.commons.media;
import org.wikipedia.dataclient.mwapi.MwQueryResponse;
import java.util.Map;
import fr.free.nrw.commons.depictions.models.DepictionResponse;
import io.reactivex.Observable;
import java.util.Map;
import org.wikipedia.dataclient.mwapi.MwQueryResponse;
import retrofit2.http.GET;
import retrofit2.http.Query;
import retrofit2.http.QueryMap;
@ -17,6 +15,7 @@ public interface MediaInterface {
String MEDIA_PARAMS="&prop=imageinfo&iiprop=url|extmetadata&iiurlwidth=640" +
"&iiextmetadatafilter=DateTime|Categories|GPSLatitude|GPSLongitude|ImageDescription|DateTimeOriginal" +
"|Artist|LicenseShortName|LicenseUrl";
/**
* Checks if a page exists or not.
*
@ -48,6 +47,19 @@ public interface MediaInterface {
MEDIA_PARAMS)
Observable<MwQueryResponse> getMediaListFromCategory(@Query("gcmtitle") String category, @Query("gcmlimit") int itemLimit, @QueryMap Map<String, String> continuation);
/**
* This method retrieves a list of Media objects for a given user name
*
* @param username user's Wikimedia Commons username.
* @param itemLimit how many images are returned
* @param continuation the continuation string from the previous query or empty map
* @return
*/
@GET("w/api.php?action=query&format=json&formatversion=2" + //Basic parameters
"&generator=allimages&gaisort=timestamp&gaidir=older" + MEDIA_PARAMS)
Observable<MwQueryResponse> getMediaListForUser(@Query("gaiuser") String username,
@Query("gailimit") int itemLimit, @QueryMap(encoded = true) Map<String, String> continuation);
/**
* This method retrieves a list of Media objects filtered using image generator query
*
@ -86,21 +98,15 @@ public interface MediaInterface {
Observable<MwParseResponse> getPageHtml(@Query("page") String title);
/**
* Fetches caption using file name
*
* @param filename name of the file to be used for fetching captions
* */
@GET("w/api.php?action=wbgetentities&props=labels&format=json&languagefallback=1")
Observable<MwQueryResponse> fetchCaptionByFilename(@Query("language") String language, @Query("titles") String filename);
* Fetches list of images from a depiction entity
*
* @param query depictionEntityId
* @param sroffset number od depictions already fetched, this is useful in implementing
* pagination
*/
/**
* Fetches list of images from a depiction entity
*
* @param query depictionEntityId
* @param sroffset number od depictions already fetched, this is useful in implementing pagination
*/
@GET("w/api.php?action=query&list=search&format=json&srnamespace=6")
Observable<DepictionResponse> fetchImagesForDepictedItem(@Query("srsearch") String query, @Query("sroffset") String sroffset);
@GET("w/api.php?action=query&list=search&format=json&srnamespace=6")
Observable<DepictionResponse> fetchImagesForDepictedItem(@Query("srsearch") String query,
@Query("sroffset") String sroffset);
}