topic edit modal: Add new edit-topic UI.

Leslie Ngo · Leslie Ngo · commit a1004234ffbb · 2022-09-29T13:40:41.000-07:00
Fixes: #5365
diff --git a/src/ZulipMobile.js b/src/ZulipMobile.js
@@ -16,6 +16,7 @@ import CompatibilityChecker from './boot/CompatibilityChecker';
 import AppEventHandlers from './boot/AppEventHandlers';
 import { initializeSentry } from './sentry';
 import ZulipSafeAreaProvider from './boot/ZulipSafeAreaProvider';
+import TopicEditModalProvider from './boot/TopicEditModalProvider';
 
 initializeSentry();
 
@@ -55,9 +56,11 @@ export default function ZulipMobile(): Node {
               <AppEventHandlers>
                 <TranslationProvider>
                   <ThemeProvider>
-                    <ActionSheetProvider>
-                      <ZulipNavigationContainer />
-                    </ActionSheetProvider>
+                    <TopicEditModalProvider>
+                      <ActionSheetProvider>
+                        <ZulipNavigationContainer />
+                      </ActionSheetProvider>
+                    </TopicEditModalProvider>
                   </ThemeProvider>
                 </TranslationProvider>
               </AppEventHandlers>
diff --git a/src/action-sheets/index.js b/src/action-sheets/index.js
@@ -77,6 +77,7 @@ type TopicArgs = {
   zulipFeatureLevel: number,
   dispatch: Dispatch,
   _: GetText,
+  startEditTopic: (streamId: number, topic: string) => Promise<void>,
   ...
 };
 
@@ -169,6 +170,14 @@ const deleteMessage = {
   },
 };
 
+const editTopic = {
+  title: 'Edit topic',
+  errorMessage: 'Failed to resolve topic',
+  action: ({ streamId, topic, startEditTopic }) => {
+    startEditTopic(streamId, topic);
+  },
+};
+
 const markTopicAsRead = {
   title: 'Mark topic as read',
   errorMessage: 'Failed to mark topic as read',
@@ -502,9 +511,16 @@ export const constructTopicActionButtons = (args: {|
 
   const buttons = [];
   const unreadCount = getUnreadCountForTopic(unread, streamId, topic);
+  const isAdmin = roleIsAtLeast(ownUserRole, Role.Admin);
   if (unreadCount > 0) {
     buttons.push(markTopicAsRead);
   }
+  /* At present, the permissions for editing the topic of a message are highly complex.
+   Until we move to a better set of policy options, we'll only display the edit topic
+   button to admins. Further information: #21739, #M5365 */
+  if (isAdmin) {
+    buttons.push(editTopic);
+  }
   if (isTopicMuted(streamId, topic, mute)) {
     buttons.push(unmuteTopic);
   } else {
@@ -515,7 +531,7 @@ export const constructTopicActionButtons = (args: {|
   } else {
     buttons.push(unresolveTopic);
   }
-  if (roleIsAtLeast(ownUserRole, Role.Admin)) {
+  if (isAdmin) {
     buttons.push(deleteTopic);
   }
   const sub = subscriptions.get(streamId);
@@ -666,6 +682,7 @@ export const showTopicActionSheet = (args: {|
   showActionSheetWithOptions: ShowActionSheetWithOptions,
   callbacks: {|
     dispatch: Dispatch,
+    startEditTopic: (streamId: number, topic: string) => Promise<void>,
     _: GetText,
   |},
   backgroundData: $ReadOnly<{
diff --git a/src/boot/TopicEditModalProvider.js b/src/boot/TopicEditModalProvider.js
@@ -0,0 +1,72 @@
+/* @flow strict-local */
+import React, { createContext, useState, useCallback, useContext } from 'react';
+import type { Context, Node } from 'react';
+import { useSelector } from '../react-redux';
+import TopicEditModal from '../topics/TopicEditModal';
+import { getAuth, getZulipFeatureLevel, getStreamsById } from '../selectors';
+import { TranslationContext } from './TranslationProvider';
+
+type Props = $ReadOnly<{|
+  children: Node,
+|}>;
+
+type StartEditTopicContext = (streamId: number, topic: string) => Promise<void>;
+
+/* $FlowIssue[incompatible-type] We can't provide an initial 'value' prop. We would
+need to provide the 'startEditTopic' callback that's defined after this createContext
+call, which is impossible. */
+const TopicModal: Context<StartEditTopicContext> = createContext(undefined);
+
+export const useStartEditTopic = (): StartEditTopicContext => useContext(TopicModal);
+
+export default function TopicEditModalProvider(props: Props): Node {
+  const { children } = props;
+  const auth = useSelector(getAuth);
+  const zulipFeatureLevel = useSelector(getZulipFeatureLevel);
+  const streamsById = useSelector(getStreamsById);
+  const _ = useContext(TranslationContext);
+
+  const [topicModalProviderState, setTopicModalProviderState] = useState({
+    visible: false,
+    streamId: -1,
+    topic: '',
+  });
+
+  const { visible } = topicModalProviderState;
+
+  const startEditTopic = useCallback(
+    async (streamId: number, topic: string) => {
+      if (visible) {
+        return;
+      }
+      setTopicModalProviderState({
+        visible: true,
+        streamId,
+        topic,
+      });
+    },
+    [visible],
+  );
+
+  const closeEditTopicModal = useCallback(() => {
+    setTopicModalProviderState({
+      visible: false,
+      streamId: -1,
+      topic: '',
+    });
+  }, []);
+
+  return (
+    <TopicModal.Provider value={startEditTopic}>
+      <TopicEditModal
+        topicModalProviderState={topicModalProviderState}
+        closeEditTopicModal={closeEditTopicModal}
+        auth={auth}
+        zulipFeatureLevel={zulipFeatureLevel}
+        streamsById={streamsById}
+        _={_}
+      />
+      {children}
+    </TopicModal.Provider>
+  );
+}
diff --git a/src/chat/ChatScreen.js b/src/chat/ChatScreen.js
@@ -30,6 +30,7 @@ import { showErrorAlert } from '../utils/info';
 import { TranslationContext } from '../boot/TranslationProvider';
 import * as api from '../api';
 import { useConditionalEffect } from '../reactUtils';
+import { useStartEditTopic } from '../boot/TopicEditModalProvider';
 
 type Props = $ReadOnly<{|
   navigation: AppNavigationProp<'chat'>,
@@ -133,6 +134,7 @@ export default function ChatScreen(props: Props): Node {
     (value: EditMessage | null) => navigation.setParams({ editMessage: value }),
     [navigation],
   );
+  const startEditTopic = useStartEditTopic();
 
   const isNarrowValid = useSelector(state => getIsNarrowValid(state, narrow));
   const draft = useSelector(state => getDraftForNarrow(state, narrow));
@@ -221,6 +223,7 @@ export default function ChatScreen(props: Props): Node {
               }
               showMessagePlaceholders={showMessagePlaceholders}
               startEditMessage={setEditMessage}
+              startEditTopic={startEditTopic}
             />
           );
         }
diff --git a/src/search/SearchMessagesCard.js b/src/search/SearchMessagesCard.js
@@ -9,6 +9,7 @@ import { createStyleSheet } from '../styles';
 import LoadingIndicator from '../common/LoadingIndicator';
 import SearchEmptyState from '../common/SearchEmptyState';
 import MessageList from '../webview/MessageList';
+import { useStartEditTopic } from '../boot/TopicEditModalProvider';
 
 const styles = createStyleSheet({
   results: {
@@ -24,6 +25,7 @@ type Props = $ReadOnly<{|
 
 export default function SearchMessagesCard(props: Props): Node {
   const { narrow, isFetching, messages } = props;
+  const startEditTopic = useStartEditTopic();
 
   if (isFetching) {
     // Display loading indicator only if there are no messages to
@@ -55,6 +57,7 @@ export default function SearchMessagesCard(props: Props): Node {
         // TODO: handle editing a message from the search results,
         // or make this prop optional
         startEditMessage={() => undefined}
+        startEditTopic={startEditTopic}
       />
     </View>
   );
diff --git a/src/streams/TopicItem.js b/src/streams/TopicItem.js
@@ -25,6 +25,7 @@ import {
 import { getMute } from '../mute/muteModel';
 import { getUnread } from '../unread/unreadModel';
 import { getOwnUserRole } from '../permissionSelectors';
+import { useStartEditTopic } from '../boot/TopicEditModalProvider';
 
 const componentStyles = createStyleSheet({
   selectedRow: {
@@ -70,6 +71,7 @@ export default function TopicItem(props: Props): Node {
     useActionSheet().showActionSheetWithOptions;
   const _ = useContext(TranslationContext);
   const dispatch = useDispatch();
+  const startEditTopic = useStartEditTopic();
   const backgroundData = useSelector(state => ({
     auth: getAuth(state),
     mute: getMute(state),
@@ -88,7 +90,7 @@ export default function TopicItem(props: Props): Node {
       onLongPress={() => {
         showTopicActionSheet({
           showActionSheetWithOptions,
-          callbacks: { dispatch, _ },
+          callbacks: { dispatch, startEditTopic, _ },
           backgroundData,
           streamId,
           topic: name,
diff --git a/src/title/TitleStream.js b/src/title/TitleStream.js
@@ -27,6 +27,7 @@ import { showStreamActionSheet, showTopicActionSheet } from '../action-sheets';
 import type { ShowActionSheetWithOptions } from '../action-sheets';
 import { getUnread } from '../unread/unreadModel';
 import { getOwnUserRole } from '../permissionSelectors';
+import { useStartEditTopic } from '../boot/TopicEditModalProvider';
 
 type Props = $ReadOnly<{|
   narrow: Narrow,
@@ -51,6 +52,7 @@ export default function TitleStream(props: Props): Node {
   const { narrow, color } = props;
   const dispatch = useDispatch();
   const stream = useSelector(state => getStreamInNarrow(state, narrow));
+  const startEditTopic = useStartEditTopic();
   const backgroundData = useSelector(state => ({
     auth: getAuth(state),
     mute: getMute(state),
@@ -75,7 +77,7 @@ export default function TitleStream(props: Props): Node {
           ? () => {
               showTopicActionSheet({
                 showActionSheetWithOptions,
-                callbacks: { dispatch, _ },
+                callbacks: { dispatch, startEditTopic, _ },
                 backgroundData,
                 streamId: stream.stream_id,
                 topic: topicOfNarrow(narrow),
diff --git a/src/topics/TopicEditModal.js b/src/topics/TopicEditModal.js
@@ -0,0 +1,133 @@
+// @flow strict-local
+import React, { useState, useContext, useEffect } from 'react';
+import { Modal, View } from 'react-native';
+import type { Node } from 'react';
+import styles, { ThemeContext, BRAND_COLOR, createStyleSheet } from '../styles';
+import { updateMessage } from '../api';
+import type { Auth, GetText, Stream } from '../types';
+import { fetchSomeMessageIdForConversation } from '../message/fetchActions';
+import ZulipTextIntl from '../common/ZulipTextIntl';
+import ZulipTextButton from '../common/ZulipTextButton';
+import Input from '../common/Input';
+
+type Props = $ReadOnly<{|
+  topicModalProviderState: {
+    visible: boolean,
+    topic: string,
+    streamId: number,
+  },
+  auth: Auth,
+  zulipFeatureLevel: number,
+  streamsById: Map<number, Stream>,
+  _: GetText,
+  closeEditTopicModal: () => void,
+|}>;
+
+export default function TopicEditModal(props: Props): Node {
+  const { topicModalProviderState, closeEditTopicModal, auth, zulipFeatureLevel, streamsById, _ } =
+    props;
+
+  const { visible, topic, streamId } = topicModalProviderState;
+
+  const [topicName, onChangeTopicName] = useState();
+
+  useEffect(() => {
+    onChangeTopicName(topic);
+  }, [topic]);
+
+  const { backgroundColor } = useContext(ThemeContext);
+
+  const modalStyles = createStyleSheet({
+    wrapper: {
+      flex: 1,
+      justifyContent: 'center',
+      alignItems: 'center',
+    },
+    modal: {
+      justifyContent: 'flex-start',
+      backgroundColor,
+      padding: 15,
+      shadowOpacity: 0.5,
+      shadowColor: 'gray',
+      shadowOffset: {
+        height: 5,
+        width: 5,
+      },
+      shadowRadius: 5,
+      borderRadius: 5,
+      width: '90%',
+    },
+    buttonContainer: {
+      flexDirection: 'row',
+      justifyContent: 'flex-end',
+    },
+    titleText: {
+      fontSize: 18,
+      lineHeight: 21,
+      color: BRAND_COLOR,
+      marginBottom: 10,
+      fontWeight: 'bold',
+    },
+  });
+
+  const handleSubmit = async () => {
+    if (topicName === '') {
+      return;
+    }
+    const messageId = await fetchSomeMessageIdForConversation(
+      auth,
+      streamId,
+      topic,
+      streamsById,
+      zulipFeatureLevel,
+    );
+    if (messageId == null) {
+      throw new Error(
+        _('No messages in topic: {streamAndTopic}', {
+          streamAndTopic: `#${streamsById.get(streamId)?.name ?? 'unknown'} > ${topic}`,
+        }),
+      );
+    }
+    await updateMessage(auth, messageId, {
+      propagate_mode: 'change_all',
+      subject: topicName,
+      ...(zulipFeatureLevel >= 9 && {
+        send_notification_to_old_thread: true,
+        send_notification_to_new_thread: true,
+      }),
+    });
+    closeEditTopicModal();
+  };
+  return (
+    <Modal
+      transparent
+      visible={visible}
+      animationType="slide"
+      onRequestClose={closeEditTopicModal}
+      supportedOrientations={['portrait', 'landscape', 'landscape-left', 'landscape-right']}
+    >
+      <View style={modalStyles.wrapper}>
+        <View style={modalStyles.modal}>
+          <ZulipTextIntl style={modalStyles.titleText} text="Edit topic" />
+          <Input
+            style={styles.marginBottom}
+            defaultValue={topicName}
+            placeholder="Please enter a new topic name."
+            onChangeText={onChangeTopicName}
+            maxLength={60}
+            autoFocus
+            selectTextOnFocus
+          />
+          <View style={modalStyles.buttonContainer}>
+            <ZulipTextButton label="Cancel" onPress={closeEditTopicModal} />
+            <ZulipTextButton
+              label="Submit"
+              onPress={handleSubmit}
+              disabled={topicName === ''}
+            />
+          </View>
+        </View>
+      </View>
+    </Modal>
+  );
+}
diff --git a/src/webview/MessageList.js b/src/webview/MessageList.js
@@ -45,6 +45,7 @@ type OuterProps = $ReadOnly<{|
   initialScrollMessageId: number | null,
   showMessagePlaceholders: boolean,
   startEditMessage: (editMessage: EditMessage) => void,
+  startEditTopic: (streamId: number, topic: string) => Promise<void>,
 |}>;
 
 type SelectorProps = {|
diff --git a/src/webview/__tests__/generateInboundEvents-test.js b/src/webview/__tests__/generateInboundEvents-test.js
diff --git a/src/webview/handleOutboundEvents.js b/src/webview/handleOutboundEvents.js
diff --git a/static/translations/messages_en.json b/static/translations/messages_en.json
