Share sheet previews (AND-139)

mastodon/src/main/AndroidManifest.xml

@@ -115,6 +115,14 @@
 				android:resource="@xml/file_paths" />
 		</provider>
 
+		<provider
+			android:authorities="${applicationId}.fileprovider"
+			android:name=".TweakedFileProvider"
+			android:grantUriPermissions="true"
+			android:exported="false">
+			<meta-data android:name="android.support.FILE_PROVIDER_PATHS" android:resource="@xml/fileprovider_paths"/>
+		</provider>
+
 	</application>
 
 </manifest>

mastodon/src/main/java/org/joinmastodon/android/TweakedFileProvider.java

@@ -0,0 +1,38 @@
+package org.joinmastodon.android;
+
+import android.database.Cursor;
+import android.net.Uri;
+import android.os.ParcelFileDescriptor;
+import android.util.Log;
+
+import java.io.FileNotFoundException;
+import java.util.Arrays;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+public class TweakedFileProvider extends FileProvider{
+	private static final String TAG="TweakedFileProvider";
+
+	@Override
+	public String getType(@NonNull Uri uri){
+		Log.d(TAG, "getType() called with: uri = ["+uri+"]");
+		if(uri.getPathSegments().get(0).equals("image_cache")){
+			Log.i(TAG, "getType: HERE!");
+			return "image/jpeg"; // might as well be a png but image decoding APIs don't care, needs to be image/* though
+		}
+		return super.getType(uri);
+	}
+
+	@Override
+	public Cursor query(@NonNull Uri uri, @Nullable String[] projection, @Nullable String selection, @Nullable String[] selectionArgs, @Nullable String sortOrder){
+		Log.d(TAG, "query() called with: uri = ["+uri+"], projection = ["+Arrays.toString(projection)+"], selection = ["+selection+"], selectionArgs = ["+Arrays.toString(selectionArgs)+"], sortOrder = ["+sortOrder+"]");
+		return super.query(uri, projection, selection, selectionArgs, sortOrder);
+	}
+
+	@Override
+	public ParcelFileDescriptor openFile(@NonNull Uri uri, @NonNull String mode) throws FileNotFoundException{
+		Log.d(TAG, "openFile() called with: uri = ["+uri+"], mode = ["+mode+"]");
+		return super.openFile(uri, mode);
+	}
+}

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

@@ -865,10 +865,7 @@ public void onCreateOptionsMenu(Menu menu, MenuInflater inflater){
 	public boolean onOptionsItemSelected(MenuItem item){
 		int id=item.getItemId();
 		if(id==R.id.share){
-			Intent intent=new Intent(Intent.ACTION_SEND);
-			intent.setType("text/plain");
-			intent.putExtra(Intent.EXTRA_TEXT, account.url);
-			startActivity(Intent.createChooser(intent, item.getTitle()));
+			UiUtils.openSystemShareSheet(getActivity(), account);
 		}else if(id==R.id.mute){
 			UiUtils.confirmToggleMuteUser(getActivity(), accountID, account, relationship.muting, this::updateRelationship);
 		}else if(id==R.id.block){

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

@@ -451,10 +451,7 @@ private boolean onBookmarkLongClick(View v) {
 		private void onShareClick(View v){
 			if(item.status.preview) return;
 			UiUtils.opacityIn(v);
-			Intent intent=new Intent(Intent.ACTION_SEND);
-			intent.setType("text/plain");
-			intent.putExtra(Intent.EXTRA_TEXT, item.status.url);
-			v.getContext().startActivity(Intent.createChooser(intent, v.getContext().getString(R.string.share_toot_title)));
+			UiUtils.openSystemShareSheet(v.getContext(), item.status);
 		}
 
 		private boolean onShareLongClick(View v){

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

@@ -289,7 +289,7 @@ public void onError(ErrorResponse error){
 					args.putString("profileDisplayUsername", account.getDisplayUsername());
 					Nav.go(item.parentFragment.getActivity(), ListsFragment.class, args);
 				}else if(id==R.id.share){
-					UiUtils.openSystemShareSheet(activity, item.status.url);
+					UiUtils.openSystemShareSheet(activity, item.status);
 				}
 				return true;
 			});

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

@@ -13,6 +13,7 @@
 import android.content.ActivityNotFoundException;
 import android.content.ClipData;
 import android.content.ClipboardManager;
+import android.content.ClipData;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
@@ -37,6 +38,8 @@
 import android.os.ext.SdkExtensions;
 import android.provider.MediaStore;
 import android.provider.OpenableColumns;
+import android.system.ErrnoException;
+import android.system.Os;
 import android.text.SpannableStringBuilder;
 import android.text.Spanned;
 import android.text.TextUtils;
@@ -48,6 +51,7 @@
 import android.transition.TransitionManager;
 import android.transition.TransitionSet;
 import android.util.Log;
+import android.util.Log;
 import android.util.Pair;
 import android.view.Gravity;
 import android.view.HapticFeedbackConstants;
@@ -72,6 +76,7 @@
 import android.widget.Toast;
 
 import org.joinmastodon.android.E;
+import org.joinmastodon.android.FileProvider;
 import org.joinmastodon.android.GlobalUserPreferences;
 import org.joinmastodon.android.MainActivity;
 import org.joinmastodon.android.MastodonApp;
@@ -134,6 +139,7 @@
 
 import java.io.File;
 import java.lang.reflect.Field;
+import java.io.IOException;
 import java.lang.reflect.Method;
 import java.net.IDN;
 import java.net.URI;
@@ -181,6 +187,7 @@
 import me.grishka.appkit.Nav;
 import me.grishka.appkit.api.Callback;
 import me.grishka.appkit.api.ErrorResponse;
+import me.grishka.appkit.imageloader.ImageCache;
 import me.grishka.appkit.imageloader.ViewImageLoader;
 import me.grishka.appkit.imageloader.requests.UrlImageLoaderRequest;
 import me.grishka.appkit.utils.CubicBezierInterpolator;
@@ -1754,10 +1761,48 @@ public static String formatDuration(Context context, int seconds){
 		}
 	}
 
-	public static void openSystemShareSheet(Context context, String url){
+	public static Uri getFileProviderUri(Context context, File file){
+		return FileProvider.getUriForFile(context, context.getPackageName()+".fileprovider", file);
+	}
+
+	public static void openSystemShareSheet(Context context, Object obj){
 		Intent intent=new Intent(Intent.ACTION_SEND);
 		intent.setType("text/plain");
+		Account account;
+		String url;
+		String previewTitle;
+
+		if(obj instanceof Account acc){
+			account=acc;
+			url=acc.url;
+			previewTitle=context.getString(R.string.share_sheet_preview_profile, account.displayName);
+		}else if(obj instanceof Status st){
+			account=st.account;
+			url=st.url;
+			String postText=st.getStrippedText();
+			if(TextUtils.isEmpty(postText)){
+				previewTitle=context.getString(R.string.share_sheet_preview_profile, account.displayName);
+			}else{
+				if(postText.length()>100)
+					postText=postText.substring(0, 100)+"...";
+				previewTitle=context.getString(R.string.share_sheet_preview_post, account.displayName, postText);
+			}
+		}else{
+			throw new IllegalArgumentException("Unsupported share object type");
+		}
+
 		intent.putExtra(Intent.EXTRA_TEXT, url);
+		intent.putExtra(Intent.EXTRA_TITLE, previewTitle);
+		ImageCache cache=ImageCache.getInstance(context);
+		try{
+			File ava=cache.getFile(new UrlImageLoaderRequest(account.avatarStatic));
+			if(!ava.exists())
+				ava=cache.getFile(new UrlImageLoaderRequest(account.avatar));
+			if(ava.exists()){
+				intent.setClipData(ClipData.newRawUri(null, getFileProviderUri(context, ava)));
+				intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+			}
+		}catch(IOException ignore){}
 		context.startActivity(Intent.createChooser(intent, context.getString(R.string.share_toot_title)));
 	}
 

mastodon/src/main/java/org/joinmastodon/android/ui/viewholders/AccountViewHolder.java

@@ -298,10 +298,7 @@ private boolean onContextMenuItemSelected(MenuItem item){
 
 		int id=item.getItemId();
 		if(id==R.id.share){
-			Intent intent=new Intent(Intent.ACTION_SEND);
-			intent.setType("text/plain");
-			intent.putExtra(Intent.EXTRA_TEXT, account.url);
-			fragment.startActivity(Intent.createChooser(intent, item.getTitle()));
+			UiUtils.openSystemShareSheet(fragment.getActivity(), account);
 		}else if(id==R.id.mute){
 			UiUtils.confirmToggleMuteUser(fragment.getActivity(), accountID, account, relationship.muting, this::updateRelationship);
 		}else if(id==R.id.block){

mastodon/src/main/res/xml/fileprovider_paths.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<paths>
+	<cache-path name="image_cache" path="images/"/>
+</paths>