topicList: Add topic list page for each channel

fixes: zulip#1158

Author: lakshya1goel

assets/icons/ZulipIcons.ttf

@@ -108,6 +108,10 @@
   "@actionSheetOptionUnresolveTopic": {
     "description": "Label for the 'Mark as unresolved' button on the topic action sheet."
   },
+  "actionSheetOptionTopicList": "Topic list",
+  "@actionSheetOptionTopicList": {
+    "description": "Label for a button in the channel action sheet that opens the list of topics in the channel"
+  },
   "errorResolveTopicFailedTitle": "Failed to mark topic as resolved",
   "@errorResolveTopicFailedTitle": {
     "description": "Error title when marking a topic as resolved failed."
@@ -710,6 +714,10 @@
   "@channelFeedButtonTooltip": {
     "description": "Tooltip for button to navigate to a given channel's feed"
   },
+  "topicListButtonTooltip": "Topic list",
+  "@topicListButtonTooltip": {
+    "description": "Tooltip for button to navigate to topic list page."
+  },
   "notifGroupDmConversationLabel": "{senderFullName} to you and {numOthers, plural, =1{1 other} other{{numOthers} others}}",
   "@notifGroupDmConversationLabel": {
     "description": "Label for a group DM conversation notification.",
@@ -868,6 +876,14 @@
   "@emojiPickerSearchEmoji": {
     "description": "Hint text for the emoji picker search text field."
   },
+  "errorFetchingTopics": "Error fetching topics",
+  "@errorFetchingTopics": {
+    "description": "Error title when fetching the topics failed."
+  },
+  "noTopicsInChannel": "No topics in the channel",
+  "@noTopicsInChannel": {
+    "description": "Text to show when a channel has no topics."
+  },
   "noEarlierMessages": "No earlier messages",
   "@noEarlierMessages": {
     "description": "Text to show at the start of a message list if there are no earlier messages."

assets/icons/chevron_down.svg

@@ -272,6 +272,12 @@ abstract class ZulipLocalizations {
   /// **'Mark as unresolved'**
   String get actionSheetOptionUnresolveTopic;
 
+  /// Label for a button in the channel action sheet that opens the list of topics in the channel
+  ///
+  /// In en, this message translates to:
+  /// **'Topic list'**
+  String get actionSheetOptionTopicList;
+
   /// Error title when marking a topic as resolved failed.
   ///
   /// In en, this message translates to:
@@ -1064,6 +1070,12 @@ abstract class ZulipLocalizations {
   /// **'Channel feed'**
   String get channelFeedButtonTooltip;
 
+  /// Tooltip for button to navigate to topic list page.
+  ///
+  /// In en, this message translates to:
+  /// **'Topic list'**
+  String get topicListButtonTooltip;
+
   /// Label for a group DM conversation notification.
   ///
   /// In en, this message translates to:
@@ -1280,6 +1292,18 @@ abstract class ZulipLocalizations {
   /// **'Search emoji'**
   String get emojiPickerSearchEmoji;
 
+  /// Error title when fetching the topics failed.
+  ///
+  /// In en, this message translates to:
+  /// **'Error fetching topics'**
+  String get errorFetchingTopics;
+
+  /// Text to show when a channel has no topics.
+  ///
+  /// In en, this message translates to:
+  /// **'No topics in the channel'**
+  String get noTopicsInChannel;
+
   /// Text to show at the start of a message list if there are no earlier messages.
   ///
   /// In en, this message translates to:

assets/icons/list.svg

@@ -94,6 +94,9 @@ class ZulipLocalizationsAr extends ZulipLocalizations {
   @override
   String get actionSheetOptionUnresolveTopic => 'Mark as unresolved';
 
+  @override
+  String get actionSheetOptionTopicList => 'Topic list';
+
   @override
   String get errorResolveTopicFailedTitle => 'Failed to mark topic as resolved';
 
@@ -582,6 +585,9 @@ class ZulipLocalizationsAr extends ZulipLocalizations {
   @override
   String get channelFeedButtonTooltip => 'Channel feed';
 
+  @override
+  String get topicListButtonTooltip => 'Topic list';
+
   @override
   String notifGroupDmConversationLabel(String senderFullName, int numOthers) {
     String _temp0 = intl.Intl.pluralLogic(
@@ -706,6 +712,12 @@ class ZulipLocalizationsAr extends ZulipLocalizations {
   @override
   String get emojiPickerSearchEmoji => 'Search emoji';
 
+  @override
+  String get errorFetchingTopics => 'Error fetching topics';
+
+  @override
+  String get noTopicsInChannel => 'No topics in the channel';
+
   @override
   String get noEarlierMessages => 'No earlier messages';
 

assets/l10n/app_en.arb

@@ -94,6 +94,9 @@ class ZulipLocalizationsEn extends ZulipLocalizations {
   @override
   String get actionSheetOptionUnresolveTopic => 'Mark as unresolved';
 
+  @override
+  String get actionSheetOptionTopicList => 'Topic list';
+
   @override
   String get errorResolveTopicFailedTitle => 'Failed to mark topic as resolved';
 
@@ -582,6 +585,9 @@ class ZulipLocalizationsEn extends ZulipLocalizations {
   @override
   String get channelFeedButtonTooltip => 'Channel feed';
 
+  @override
+  String get topicListButtonTooltip => 'Topic list';
+
   @override
   String notifGroupDmConversationLabel(String senderFullName, int numOthers) {
     String _temp0 = intl.Intl.pluralLogic(
@@ -706,6 +712,12 @@ class ZulipLocalizationsEn extends ZulipLocalizations {
   @override
   String get emojiPickerSearchEmoji => 'Search emoji';
 
+  @override
+  String get errorFetchingTopics => 'Error fetching topics';
+
+  @override
+  String get noTopicsInChannel => 'No topics in the channel';
+
   @override
   String get noEarlierMessages => 'No earlier messages';
 

lib/generated/l10n/zulip_localizations.dart

@@ -94,6 +94,9 @@ class ZulipLocalizationsJa extends ZulipLocalizations {
   @override
   String get actionSheetOptionUnresolveTopic => 'Mark as unresolved';
 
+  @override
+  String get actionSheetOptionTopicList => 'Topic list';
+
   @override
   String get errorResolveTopicFailedTitle => 'Failed to mark topic as resolved';
 
@@ -582,6 +585,9 @@ class ZulipLocalizationsJa extends ZulipLocalizations {
   @override
   String get channelFeedButtonTooltip => 'Channel feed';
 
+  @override
+  String get topicListButtonTooltip => 'Topic list';
+
   @override
   String notifGroupDmConversationLabel(String senderFullName, int numOthers) {
     String _temp0 = intl.Intl.pluralLogic(
@@ -706,6 +712,12 @@ class ZulipLocalizationsJa extends ZulipLocalizations {
   @override
   String get emojiPickerSearchEmoji => 'Search emoji';
 
+  @override
+  String get errorFetchingTopics => 'Error fetching topics';
+
+  @override
+  String get noTopicsInChannel => 'No topics in the channel';
+
   @override
   String get noEarlierMessages => 'No earlier messages';
 

lib/generated/l10n/zulip_localizations_ar.dart

@@ -94,6 +94,9 @@ class ZulipLocalizationsNb extends ZulipLocalizations {
   @override
   String get actionSheetOptionUnresolveTopic => 'Mark as unresolved';
 
+  @override
+  String get actionSheetOptionTopicList => 'Topic list';
+
   @override
   String get errorResolveTopicFailedTitle => 'Failed to mark topic as resolved';
 
@@ -582,6 +585,9 @@ class ZulipLocalizationsNb extends ZulipLocalizations {
   @override
   String get channelFeedButtonTooltip => 'Channel feed';
 
+  @override
+  String get topicListButtonTooltip => 'Topic list';
+
   @override
   String notifGroupDmConversationLabel(String senderFullName, int numOthers) {
     String _temp0 = intl.Intl.pluralLogic(
@@ -706,6 +712,12 @@ class ZulipLocalizationsNb extends ZulipLocalizations {
   @override
   String get emojiPickerSearchEmoji => 'Search emoji';
 
+  @override
+  String get errorFetchingTopics => 'Error fetching topics';
+
+  @override
+  String get noTopicsInChannel => 'No topics in the channel';
+
   @override
   String get noEarlierMessages => 'No earlier messages';
 

lib/generated/l10n/zulip_localizations_en.dart

@@ -96,6 +96,9 @@ class ZulipLocalizationsPl extends ZulipLocalizations {
   @override
   String get actionSheetOptionUnresolveTopic => 'Oznacz brak rozwiązania';
 
+  @override
+  String get actionSheetOptionTopicList => 'Topic list';
+
   @override
   String get errorResolveTopicFailedTitle =>
       'Nie udało się oznaczyć jako rozwiązany';
@@ -591,6 +594,9 @@ class ZulipLocalizationsPl extends ZulipLocalizations {
   @override
   String get channelFeedButtonTooltip => 'Strumień kanału';
 
+  @override
+  String get topicListButtonTooltip => 'Topic list';
+
   @override
   String notifGroupDmConversationLabel(String senderFullName, int numOthers) {
     String _temp0 = intl.Intl.pluralLogic(
@@ -717,6 +723,12 @@ class ZulipLocalizationsPl extends ZulipLocalizations {
   @override
   String get emojiPickerSearchEmoji => 'Szukaj emoji';
 
+  @override
+  String get errorFetchingTopics => 'Error fetching topics';
+
+  @override
+  String get noTopicsInChannel => 'No topics in the channel';
+
   @override
   String get noEarlierMessages => 'Brak historii';