Add memes & meme-editing views

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

src/components/floatingActionButton.tsx

@@ -3,7 +3,7 @@ import { Keyboard, StyleSheet } from 'react-native';
 import { FAB } from 'react-native-paper';
 import { ParamListBase, useNavigation } from '@react-navigation/native';
 import { NativeStackNavigationProp } from '@react-navigation/native-stack';
-import { pick } from 'react-native-document-picker';
+import { pickSingle } from 'react-native-document-picker';
 import { ORIENTATION, useDimensions } from '../contexts';
 import { ROUTE } from '../types';
 import { allowedMimeTypes, noOp } from '../utilities';
@@ -65,9 +65,9 @@ const FloatingActionButton = ({ visible = true }: { visible?: boolean }) => {
       onStateChange={({ open }) => setState(open)}
       onPress={async () => {
         if (!state) return;
-        const res = await pick({ type: allowedMimeTypes }).catch(noOp);
-        if (!res) return;
-        navigate(ROUTE.ADD_MEME, { uri: res });
+        const file = await pickSingle({ type: allowedMimeTypes }).catch(noOp);
+        if (!file) return;
+        navigate(ROUTE.ADD_MEME, { file });
       }}
       style={
         orientation === ORIENTATION.PORTRAIT

src/components/memes/memeCard.tsx

@@ -0,0 +1,51 @@
+import React, { useState } from 'react';
+import { useNavigation, NavigationProp } from '@react-navigation/native';
+import { Meme } from '../../database';
+import { ROUTE, RootStackParamList } from '../../types';
+import { Card } from 'react-native-paper';
+import { Image, StyleSheet } from 'react-native';
+import { useDimensions } from '../../contexts';
+
+const memeCardStyles = StyleSheet.create({
+  card: {
+    margin: 5,
+  },
+});
+
+const MemeCard = ({ meme }: { meme: Meme }) => {
+  const { navigate } = useNavigation<NavigationProp<RootStackParamList>>();
+  const { dimensions } = useDimensions();
+
+  const [imageWidth, setImageWidth] = useState<number>();
+  const [imageHeight, setImageHeight] = useState<number>();
+
+  Image.getSize(meme.uri, (width, height) => {
+    const paddedWidth = (dimensions.width * 0.92) / 2 - 10;
+    setImageWidth(paddedWidth);
+    setImageHeight((paddedWidth / width) * height);
+  });
+
+  return (
+    <>
+      {imageWidth && imageHeight && (
+        <Card
+          onPress={() =>
+            navigate(ROUTE.EDIT_MEME, { id: meme.id.toHexString() })
+          }
+          style={memeCardStyles.card}>
+          <Card.Cover
+            source={{ uri: meme.uri }}
+            style={{ width: imageWidth, height: imageHeight }}
+          />
+          <Card.Title
+            title={meme.title}
+            titleVariant="titleSmall"
+            titleNumberOfLines={3}
+          />
+        </Card>
+      )}
+    </>
+  );
+};
+
+export default MemeCard;

src/components/memes/memeEditor.tsx

@@ -1,4 +1,4 @@
-import React, { useEffect, useState } from 'react';
+import React, { useState } from 'react';
 import { HelperText, TextInput } from 'react-native-paper';
 import { Image } from 'react-native';
 import { useDimensions } from '../../contexts';
@@ -46,13 +46,11 @@ const MemeEditor = ({
   const [imageWidth, setImageWidth] = useState<number>();
   const [imageHeight, setImageHeight] = useState<number>();
 
-  useEffect(() => {
-    Image.getSize(imageUri, (width, height) => {
-      const paddedWidth = dimensions.width * 0.92;
-      setImageWidth(paddedWidth);
-      setImageHeight((paddedWidth / width) * height);
-    });
-  }, [dimensions.width, imageUri]);
+  Image.getSize(imageUri, (width, height) => {
+    const paddedWidth = dimensions.width * 0.92;
+    setImageWidth(paddedWidth);
+    setImageHeight((paddedWidth / width) * height);
+  });
 
   if (!imageWidth || !imageHeight) return <LoadingView />;
 

src/components/memes/memeTagSearchModal.tsx

@@ -59,7 +59,7 @@ const MemeTagSearchModal = ({
       let collection = collectionIn;
 
       if (search) {
-        collection = collection.filtered('name CONTAINS[c] $0', search);
+        collection = collection.filtered('name CONTAINS[c] $0', tagName.parsed);
       }
 
       collection = collection.sorted(
@@ -88,7 +88,6 @@ const MemeTagSearchModal = ({
     if (!tag) return;
     memeTags.set(tag.id.toHexString(), tag);
     setMemeTags(new Map(memeTags));
-    setSearch(tag.name);
   };
 
   return (

src/components/tags/tagEditor.tsx

@@ -22,8 +22,9 @@ const TagEditor = ({
   const lastValidTagColor = useRef(tagColor.parsed);
 
   const handleTagColorChange = (color: string) => {
-    setTagColor(validateColor(color));
-    if (tagColor.valid) lastValidTagColor.current = tagColor.parsed;
+    const result = validateColor(color);
+    setTagColor(result);
+    if (result.valid) lastValidTagColor.current = result.parsed;
   };
 
   return (

src/database/meme.ts

@@ -21,13 +21,12 @@ const memeTypePlural = {
 class Meme extends Object<Meme> {
   id!: BSON.UUID;
   type!: MEME_TYPE;
-  uri!: string[];
-  hash!: string[];
+  uri!: string;
   size!: number;
   title!: string;
-  description?: string;
+  description!: string;
   isFavorite!: boolean;
-  tags!: Tag[] | Set<Tag>;
+  tags!: Tag[] | Realm.Set<Tag>;
   tagsLength!: number;
   dateCreated!: Date;
   dateModified!: Date;
@@ -40,11 +39,10 @@ class Meme extends Object<Meme> {
     properties: {
       id: { type: 'uuid', default: () => new BSON.UUID() },
       type: { type: 'string', indexed: true },
-      uri: 'string[]',
-      hash: 'string[]',
+      uri: 'string',
       size: 'int',
       title: 'string',
-      description: 'string?',
+      description: { type: 'string', default: '' },
       isFavorite: { type: 'bool', indexed: true, default: false },
       tags: { type: 'set', objectType: 'Tag', default: [] },
       tagsLength: { type: 'int', default: 0 },

src/database/tag.ts

@@ -7,7 +7,7 @@ class Tag extends Object<Tag> {
   id!: BSON.UUID;
   name!: string;
   color!: string;
-  memes!: Meme[] | Set<Meme>;
+  memes!: Meme[] | Realm.Set<Meme>;
   memesLength!: number;
   dateCreated!: Date;
   dateModified!: Date;

src/screens/addMeme.tsx

@@ -23,7 +23,7 @@ import { MemeEditor } from '../components';
 const AddMeme = ({
   route,
 }: NativeStackScreenProps<RootStackParamList, ROUTE.ADD_MEME>) => {
-  const navigation = useNavigation();
+  const { goBack } = useNavigation();
   const { colors } = useTheme();
   const { orientation } = useDimensions();
   const realm = useRealm();
@@ -32,9 +32,7 @@ const AddMeme = ({
     (state: RootState) => state.settings.storageUri,
   )!;
 
-  const uri = route.params.uri[0].uri;
-  // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
-  const memeType = getMemeType(route.params.uri[0].type!);
+  const { file } = route.params;
 
   const [memeTitle, setMemeTitle] = useState(validateMemeTitle('New Meme'));
   const [memeDescription, setMemeDescription] = useState(
@@ -49,31 +47,27 @@ const AddMeme = ({
     setIsSaving(true);
 
     const uuid = new BSON.UUID();
-    const savedUri: string[] = [];
-    const hash: string[] = [];
-
     // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
-    const fileExtension = extension(memeType!);
-    if (!fileExtension) navigation.goBack();
+    const mimeType = file.type!;
+    const memeType = getMemeType(mimeType);
 
-    savedUri.push(
-      AndroidScoped.appendPath(
-        storageUri,
-        `${uuid.toHexString()}.${fileExtension as string}`,
-      ),
+    const fileExtension = extension(mimeType);
+    if (!fileExtension) goBack();
+
+    const uri = AndroidScoped.appendPath(
+      storageUri,
+      `${uuid.toHexString()}.${fileExtension as string}`,
     );
 
-    await FileSystem.cp(uri, savedUri[0]);
-    const { size } = await FileSystem.stat(savedUri[0]);
-    hash.push(await FileSystem.hash(savedUri[0], 'MD5'));
+    await FileSystem.cp(file.uri, uri);
+    const { size } = await FileSystem.stat(uri);
 
     realm.write(() => {
       const meme: Meme | undefined = realm.create<Meme>(Meme.schema.name, {
         id: uuid,
         type: memeType,
-        uri: savedUri,
+        uri,
         size,
-        hash,
         title: memeTitle.parsed,
         description: memeDescription.parsed,
         isFavorite: memeIsFavorite,
@@ -81,22 +75,21 @@ const AddMeme = ({
         tagsLength: memeTags.size,
       });
 
-      meme.tags.forEach(tag => {
+      memeTags.forEach(tag => {
         tag.dateModified = new Date();
-        const memes = tag.memes as Set<Meme>;
+        const memes = tag.memes as Realm.Set<Meme>;
         memes.add(meme);
         tag.memesLength = memes.size;
       });
     });
 
-    setIsSaving(false);
-    navigation.goBack();
+    goBack();
   };
 
   return (
     <>
       <Appbar.Header>
-        <Appbar.BackAction onPress={() => navigation.goBack()} />
+        <Appbar.BackAction onPress={() => goBack()} />
         <Appbar.Content title={'Add Meme'} />
         <Appbar.Action
           icon={memeIsFavorite ? 'heart' : 'heart-outline'}
@@ -115,7 +108,7 @@ const AddMeme = ({
         ]}>
         <View style={[styles.flex, styles.justifyStart]}>
           <MemeEditor
-            imageUri={uri}
+            imageUri={file.uri}
             memeTitle={memeTitle}
             setMemeTitle={setMemeTitle}
             memeDescription={memeDescription}

src/screens/addTag.tsx

@@ -14,7 +14,7 @@ import { Tag } from '../database';
 import { TagEditor } from '../components';
 
 const AddTag = () => {
-  const navigation = useNavigation();
+  const { goBack } = useNavigation();
   const { colors } = useTheme();
   const { orientation } = useDimensions();
   const realm = useRealm();
@@ -32,13 +32,13 @@ const AddTag = () => {
       });
     });
 
-    navigation.goBack();
+    goBack();
   };
 
   return (
     <>
       <Appbar.Header>
-        <Appbar.BackAction onPress={() => navigation.goBack()} />
+        <Appbar.BackAction onPress={() => goBack()} />
         <Appbar.Content title={'Add Tag'} />
       </Appbar.Header>
       <ScrollView

src/screens/editMeme.tsx

@@ -1,20 +1,112 @@
-import React from 'react';
-import { ScrollView } from 'react-native';
-import { Appbar, useTheme } from 'react-native-paper';
+import React, { useState } from 'react';
+import { ScrollView, View } from 'react-native';
+import { Appbar, Button, useTheme } from 'react-native-paper';
 import { useNavigation } from '@react-navigation/native';
+import { NativeStackScreenProps } from '@react-navigation/native-stack';
+import { useObject, useRealm } from '@realm/react';
+import { FileSystem } from 'react-native-file-access';
+import { BSON } from 'realm';
 import { ORIENTATION, useDimensions } from '../contexts';
 import styles from '../styles';
+import { RootStackParamList, ROUTE } from '../types';
+import { Tag, Meme } from '../database';
+import { validateMemeTitle, validateMemeDescription } from '../utilities';
+import { MemeEditor } from '../components';
 
-const EditMeme = () => {
-  const navigation = useNavigation();
+const EditMeme = ({
+  route,
+}: NativeStackScreenProps<RootStackParamList, ROUTE.EDIT_MEME>) => {
+  const { goBack } = useNavigation();
   const { colors } = useTheme();
   const { orientation } = useDimensions();
+  const realm = useRealm();
+
+  // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+  const meme = useObject<Meme>(
+    Meme.schema.name,
+    BSON.UUID.createFromHexString(route.params.id),
+  )!;
+
+  const [memeTitle, setMemeTitle] = useState(validateMemeTitle(meme.title));
+  const [memeDescription, setMemeDescription] = useState(
+    validateMemeDescription(meme.description),
+  );
+  const [memeIsFavorite, setMemeIsFavorite] = useState(meme.isFavorite);
+  const [memeTags, setMemeTags] = useState(
+    new Map<string, Tag>(
+      (meme.tags as Realm.Set<Tag>).map(tag => [tag.id.toHexString(), tag]),
+    ),
+  );
+
+  const [isSaving, setIsSaving] = useState(false);
+
+  const handleSave = () => {
+    setIsSaving(true);
+
+    realm.write(() => {
+      meme.tags.forEach(tag => {
+        if (!memeTags.has(tag.id.toHexString())) {
+          const memes = tag.memes as Realm.Set<Meme>;
+          memes.delete(meme);
+          tag.memesLength = memes.size;
+          tag.dateModified = new Date();
+        }
+      });
+
+      memeTags.forEach(tag => {
+        if (!(meme.tags as Realm.Set<Tag>).has(tag)) {
+          const memes = tag.memes as Realm.Set<Meme>;
+          memes.add(meme);
+          tag.memesLength = memes.size;
+          tag.dateModified = new Date();
+        }
+      });
+
+      meme.title = memeTitle.parsed;
+      meme.description = memeDescription.parsed;
+      meme.tags = [...memeTags.values()];
+      meme.tagsLength = memeTags.size;
+      meme.dateModified = new Date();
+    });
+
+    goBack();
+  };
+
+  const handleFavorite = () => {
+    realm.write(() => {
+      meme.isFavorite = !memeIsFavorite;
+    });
+    setMemeIsFavorite(!memeIsFavorite);
+  };
+
+  const handleDelete = async () => {
+    setIsSaving(true);
+    await FileSystem.unlink(meme.uri);
+
+    realm.write(() => {
+      for (const tag of meme.tags) {
+        tag.dateModified = new Date();
+        const memes = tag.memes as Realm.Set<Meme>;
+        memes.delete(meme);
+        tag.memesLength = memes.size;
+      }
+
+      realm.delete(meme);
+    });
+
+    goBack();
+  };
 
   return (
     <>
       <Appbar.Header>
-        <Appbar.BackAction onPress={() => navigation.goBack()} />
+        <Appbar.BackAction onPress={() => goBack()} />
         <Appbar.Content title={'Edit Meme'} />
+        <Appbar.Action
+          icon={memeIsFavorite ? 'heart' : 'heart-outline'}
+          onPress={handleFavorite}
+        />
+        <Appbar.Action icon="delete" onPress={handleDelete} />
       </Appbar.Header>
       <ScrollView
         contentContainerStyle={[
@@ -25,7 +117,29 @@ const EditMeme = () => {
           styles.flexGrow,
           styles.flexColumnSpaceBetween,
           { backgroundColor: colors.background },
-        ]}></ScrollView>
+        ]}>
+        <View style={[styles.flex, styles.justifyStart]}>
+          <MemeEditor
+            imageUri={meme.uri}
+            memeTitle={memeTitle}
+            setMemeTitle={setMemeTitle}
+            memeDescription={memeDescription}
+            setMemeDescription={setMemeDescription}
+            memeTags={memeTags}
+            setMemeTags={setMemeTags}
+          />
+        </View>
+        <View style={[styles.flex, styles.justifyEnd]}>
+          <Button
+            mode="contained"
+            icon="floppy"
+            onPress={handleSave}
+            disabled={!memeTitle.valid || !memeDescription.valid || isSaving}
+            loading={isSaving}>
+            Save
+          </Button>
+        </View>
+      </ScrollView>
     </>
   );
 };

src/screens/editTag.tsx

@@ -4,7 +4,7 @@ import { Appbar, Button, useTheme } from 'react-native-paper';
 import { useNavigation } from '@react-navigation/native';
 import { NativeStackScreenProps } from '@react-navigation/native-stack';
 import { BSON } from 'realm';
-import { useRealm } from '@realm/react';
+import { useObject, useRealm } from '@realm/react';
 import { TagEditor } from '../components';
 import styles from '../styles';
 import { ORIENTATION, useDimensions } from '../contexts';
@@ -15,14 +15,14 @@ import { validateColor, validateTagName } from '../utilities';
 const EditTag = ({
   route,
 }: NativeStackScreenProps<RootStackParamList, ROUTE.EDIT_TAG>) => {
-  const navigation = useNavigation();
+  const { goBack } = useNavigation();
   const { colors } = useTheme();
   const { orientation } = useDimensions();
   const realm = useRealm();
 
   // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
-  const tag = realm.objectForPrimaryKey(
-    Tag,
+  const tag = useObject<Tag>(
+    Tag.schema.name,
     BSON.UUID.createFromHexString(route.params.id),
   )!;
 
@@ -36,14 +36,14 @@ const EditTag = ({
       tag.dateModified = new Date();
     });
 
-    navigation.goBack();
+    goBack();
   };
 
   const handleDelete = () => {
     realm.write(() => {
       for (const meme of tag.memes) {
         meme.dateModified = new Date();
-        const tags = meme.tags as Set<Tag>;
+        const tags = meme.tags as Realm.Set<Tag>;
         tags.delete(tag);
         meme.tagsLength = tags.size;
       }
@@ -51,13 +51,13 @@ const EditTag = ({
       realm.delete(tag);
     });
 
-    navigation.goBack();
+    goBack();
   };
 
   return (
     <>
       <Appbar.Header>
-        <Appbar.BackAction onPress={() => navigation.goBack()} />
+        <Appbar.BackAction onPress={() => goBack()} />
         <Appbar.Content title={'Edit Tag'} />
         <Appbar.Action icon="delete" onPress={handleDelete} />
       </Appbar.Header>

src/screens/memes.tsx

@@ -9,29 +9,34 @@ import {
 import { useQuery } from '@realm/react';
 import { useTheme, HelperText } from 'react-native-paper';
 import { useDispatch, useSelector } from 'react-redux';
-import { FlashList } from '@shopify/flash-list';
+import { FlashList, MasonryFlashList } from '@shopify/flash-list';
 import { useFocusEffect } from '@react-navigation/native';
 import styles from '../styles';
 import { SORT_DIRECTION, memesSortQuery } from '../types';
 import { RootState, setNavVisible } from '../state';
-import { Meme, Tag } from '../database';
-import { useDimensions } from '../contexts';
+import { Meme } from '../database';
+import { ORIENTATION, useDimensions } from '../contexts';
 import { HideableHeader, MemesHeader } from '../components';
+import MemeCard from '../components/memes/memeCard';
 
 const memesStyles = StyleSheet.create({
   helperText: {
     marginVertical: 10,
   },
+  flashList: {
+    paddingBottom: 100,
+    // Needed to prevent fucky MasonryFlashList, see https://github.com/Shopify/flash-list/issues/876
+    paddingHorizontal: 0.01,
+  },
 });
 
 const Memes = () => {
   const { colors } = useTheme();
-  const { orientation } = useDimensions();
+  const { dimensions, orientation } = useDimensions();
   const sort = useSelector((state: RootState) => state.memes.sort);
   const sortDirection = useSelector(
     (state: RootState) => state.memes.sortDirection,
   );
-  const view = useSelector((state: RootState) => state.memes.view);
   const favoritesOnly = useSelector(
     (state: RootState) => state.memes.favoritesOnly,
   );
@@ -80,10 +85,11 @@ const Memes = () => {
     setScrollOffset(currentOffset);
   };
 
-  const flashListRef = useRef<FlashList<Tag>>(null);
+  const flashListRef = useRef<FlashList<Meme>>(null);
 
   useFocusEffect(
     useCallback(() => {
+      dispatch(setNavVisible(true));
       const handleBackPress = () => {
         if (scrollOffset > 0) {
           flashListRef.current?.scrollToOffset({ offset: 0, animated: true });
@@ -96,7 +102,7 @@ const Memes = () => {
 
       return () =>
         BackHandler.removeEventListener('hardwareBackPress', handleBackPress);
-    }, [flashListRef, scrollOffset]),
+    }, [dispatch, scrollOffset]),
   );
 
   return (
@@ -115,6 +121,33 @@ const Memes = () => {
           }}
         />
       </HideableHeader>
+      <MasonryFlashList
+        ref={flashListRef}
+        data={memes}
+        estimatedItemSize={200}
+        estimatedListSize={{
+          height: dimensions.height,
+          width: dimensions.width * 0.92,
+        }}
+        numColumns={2}
+        showsVerticalScrollIndicator={false}
+        renderItem={({ item: meme }) => <MemeCard meme={meme} />}
+        contentContainerStyle={{
+          paddingTop:
+            flashListPadding +
+            dimensions.height *
+              (orientation === ORIENTATION.PORTRAIT ? 0.02 : 0.04),
+          ...memesStyles.flashList,
+        }}
+        ListEmptyComponent={() => (
+          <HelperText
+            type={'info'}
+            style={[memesStyles.helperText, styles.centerText]}>
+            No memes found
+          </HelperText>
+        )}
+        onScroll={handleScroll}
+      />
     </View>
   );
 };

src/screens/tags.tsx

@@ -80,6 +80,7 @@ const Tags = () => {
 
   useFocusEffect(
     useCallback(() => {
+      dispatch(setNavVisible(true));
       const handleBackPress = () => {
         if (scrollOffset > 0) {
           flashListRef.current?.scrollToOffset({ offset: 0, animated: true });
@@ -92,7 +93,7 @@ const Tags = () => {
 
       return () =>
         BackHandler.removeEventListener('hardwareBackPress', handleBackPress);
-    }, [flashListRef, scrollOffset]),
+    }, [dispatch, scrollOffset]),
   );
 
   return (
@@ -111,31 +112,33 @@ const Tags = () => {
           }}
         />
       </HideableHeader>
-      {flashListPadding > 0 && (
-        <FlashList
-          ref={flashListRef}
-          data={tags}
-          estimatedItemSize={52}
-          showsVerticalScrollIndicator={false}
-          renderItem={({ item: tag }) => <TagRow tag={tag} />}
-          contentContainerStyle={{
-            paddingTop:
-              flashListPadding +
-              dimensions.height *
-                (orientation === ORIENTATION.PORTRAIT ? 0.02 : 0.04),
-            ...tagsStyles.flashList,
-          }}
-          ItemSeparatorComponent={() => <Divider />}
-          ListEmptyComponent={() => (
-            <HelperText
-              type={'info'}
-              style={[tagsStyles.helperText, styles.centerText]}>
-              No tags found
-            </HelperText>
-          )}
-          onScroll={handleScroll}
-        />
-      )}
+      <FlashList
+        ref={flashListRef}
+        data={tags}
+        estimatedItemSize={50}
+        estimatedListSize={{
+          height: dimensions.height,
+          width: dimensions.width * 0.92,
+        }}
+        showsVerticalScrollIndicator={false}
+        renderItem={({ item: tag }) => <TagRow tag={tag} />}
+        contentContainerStyle={{
+          paddingTop:
+            flashListPadding +
+            dimensions.height *
+              (orientation === ORIENTATION.PORTRAIT ? 0.02 : 0.04),
+          ...tagsStyles.flashList,
+        }}
+        ItemSeparatorComponent={() => <Divider />}
+        ListEmptyComponent={() => (
+          <HelperText
+            type={'info'}
+            style={[tagsStyles.helperText, styles.centerText]}>
+            No tags found
+          </HelperText>
+        )}
+        onScroll={handleScroll}
+      />
     </View>
   );
 };

src/types/dimensions.ts

@@ -0,0 +1,6 @@
+interface Dimensions {
+  width: number;
+  height: number;
+}
+
+export { type Dimensions };

src/types/index.ts

@@ -1,3 +1,4 @@
+export { type Dimensions } from './dimensions';
 export { ROUTE, type RootStackParamList } from './route';
 export {
   MEME_SORT,

src/types/route.ts

@@ -12,7 +12,7 @@ enum ROUTE {
 }
 
 interface AddMemeRouteParamsFromFiles {
-  uri: DocumentPickerResponse[];
+  file: DocumentPickerResponse;
 }
 
 interface EditMemeRouteParams {