action_sheet [nfc]: Group message action sheet classes together

Signed-off-by: Zixuan James Li <[email protected]>

Author: PIG208

lib/widgets/action_sheet.dart

@@ -23,76 +23,6 @@ import 'store.dart';
 import 'text.dart';
 import 'theme.dart';
 
-/// Show a sheet of actions you can take on a message in the message list.
-///
-/// Must have a [MessageListPage] ancestor.
-void showMessageActionSheet({required BuildContext context, required Message message}) {
-  final store = PerAccountStoreWidget.of(context);
-
-  // The UI that's conditioned on this won't live-update during this appearance
-  // of the action sheet (we avoid calling composeBoxControllerOf in a build
-  // method; see its doc).
-  // So we rely on the fact that isComposeBoxOffered for any given message list
-  // will be constant through the page's life.
-  final messageListPage = MessageListPage.ancestorOf(context);
-  final isComposeBoxOffered = messageListPage.composeBoxController != null;
-
-  final isMessageRead = message.flags.contains(MessageFlag.read);
-  final markAsUnreadSupported = store.connection.zulipFeatureLevel! >= 155; // TODO(server-6)
-  final showMarkAsUnreadButton = markAsUnreadSupported && isMessageRead;
-
-  final hasThumbsUpReactionVote = message.reactions
-    ?.aggregated.any((reactionWithVotes) =>
-      reactionWithVotes.reactionType == ReactionType.unicodeEmoji
-      && reactionWithVotes.emojiCode == '1f44d'
-      && reactionWithVotes.userIds.contains(store.selfUserId))
-    ?? false;
-
-  final optionButtons = [
-    if (!hasThumbsUpReactionVote)
-      AddThumbsUpButton(message: message, pageContext: context),
-    StarButton(message: message, pageContext: context),
-    if (isComposeBoxOffered)
-      QuoteAndReplyButton(message: message, pageContext: context),
-    if (showMarkAsUnreadButton)
-      MarkAsUnreadButton(message: message, pageContext: context),
-    CopyMessageTextButton(message: message, pageContext: context),
-    CopyMessageLinkButton(message: message, pageContext: context),
-    ShareButton(message: message, pageContext: context),
-  ];
-
-  showModalBottomSheet<void>(
-    context: context,
-    // Clip.hardEdge looks bad; Clip.antiAliasWithSaveLayer looks pixel-perfect
-    // on my iPhone 13 Pro but is marked as "much slower":
-    //   https://api.flutter.dev/flutter/dart-ui/Clip.html
-    clipBehavior: Clip.antiAlias,
-    useSafeArea: true,
-    isScrollControlled: true,
-    builder: (BuildContext _) {
-      return SafeArea(
-        minimum: const EdgeInsets.only(bottom: 16),
-        child: Padding(
-          padding: const EdgeInsets.fromLTRB(16, 0, 16, 0),
-          child: Column(
-            crossAxisAlignment: CrossAxisAlignment.stretch,
-            mainAxisSize: MainAxisSize.min,
-            children: [
-              // TODO(#217): show message text
-              Flexible(child: InsetShadowBox(
-                top: 8, bottom: 8,
-                color: DesignVariables.of(context).bgContextMenu,
-                child: SingleChildScrollView(
-                  padding: const EdgeInsets.only(top: 16, bottom: 8),
-                  child: ClipRRect(
-                    borderRadius: BorderRadius.circular(7),
-                    child: Column(spacing: 1,
-                      children: optionButtons))))),
-              const ActionSheetCancelButton(),
-            ])));
-    });
-}
-
 abstract class ActionSheetMenuItemButton extends StatelessWidget {
   const ActionSheetMenuItemButton({super.key, required this.pageContext});
 
@@ -151,16 +81,6 @@ abstract class ActionSheetMenuItemButton extends StatelessWidget {
   }
 }
 
-abstract class MessageActionSheetMenuItemButton extends ActionSheetMenuItemButton {
-  MessageActionSheetMenuItemButton({
-    super.key,
-    required this.message,
-    required super.pageContext,
-  }) : assert(pageContext.findAncestorWidgetOfExactType<MessageListPage>() != null);
-
-  final Message message;
-}
-
 class ActionSheetCancelButton extends StatelessWidget {
   const ActionSheetCancelButton({super.key});
 
@@ -187,6 +107,86 @@ class ActionSheetCancelButton extends StatelessWidget {
   }
 }
 
+/// Show a sheet of actions you can take on a message in the message list.
+///
+/// Must have a [MessageListPage] ancestor.
+void showMessageActionSheet({required BuildContext context, required Message message}) {
+  final store = PerAccountStoreWidget.of(context);
+
+  // The UI that's conditioned on this won't live-update during this appearance
+  // of the action sheet (we avoid calling composeBoxControllerOf in a build
+  // method; see its doc).
+  // So we rely on the fact that isComposeBoxOffered for any given message list
+  // will be constant through the page's life.
+  final messageListPage = MessageListPage.ancestorOf(context);
+  final isComposeBoxOffered = messageListPage.composeBoxController != null;
+
+  final isMessageRead = message.flags.contains(MessageFlag.read);
+  final markAsUnreadSupported = store.connection.zulipFeatureLevel! >= 155; // TODO(server-6)
+  final showMarkAsUnreadButton = markAsUnreadSupported && isMessageRead;
+
+  final hasThumbsUpReactionVote = message.reactions
+    ?.aggregated.any((reactionWithVotes) =>
+      reactionWithVotes.reactionType == ReactionType.unicodeEmoji
+      && reactionWithVotes.emojiCode == '1f44d'
+      && reactionWithVotes.userIds.contains(store.selfUserId))
+    ?? false;
+
+  final optionButtons = [
+    if (!hasThumbsUpReactionVote)
+      AddThumbsUpButton(message: message, pageContext: context),
+    StarButton(message: message, pageContext: context),
+    if (isComposeBoxOffered)
+      QuoteAndReplyButton(message: message, pageContext: context),
+    if (showMarkAsUnreadButton)
+      MarkAsUnreadButton(message: message, pageContext: context),
+    CopyMessageTextButton(message: message, pageContext: context),
+    CopyMessageLinkButton(message: message, pageContext: context),
+    ShareButton(message: message, pageContext: context),
+  ];
+
+  showModalBottomSheet<void>(
+    context: context,
+    // Clip.hardEdge looks bad; Clip.antiAliasWithSaveLayer looks pixel-perfect
+    // on my iPhone 13 Pro but is marked as "much slower":
+    //   https://api.flutter.dev/flutter/dart-ui/Clip.html
+    clipBehavior: Clip.antiAlias,
+    useSafeArea: true,
+    isScrollControlled: true,
+    builder: (BuildContext _) {
+      return SafeArea(
+        minimum: const EdgeInsets.only(bottom: 16),
+        child: Padding(
+          padding: const EdgeInsets.fromLTRB(16, 0, 16, 0),
+          child: Column(
+            crossAxisAlignment: CrossAxisAlignment.stretch,
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              // TODO(#217): show message text
+              Flexible(child: InsetShadowBox(
+                top: 8, bottom: 8,
+                color: DesignVariables.of(context).bgContextMenu,
+                child: SingleChildScrollView(
+                  padding: const EdgeInsets.only(top: 16, bottom: 8),
+                  child: ClipRRect(
+                    borderRadius: BorderRadius.circular(7),
+                    child: Column(spacing: 1,
+                      children: optionButtons))))),
+              const ActionSheetCancelButton(),
+            ])));
+    });
+}
+
+abstract class MessageActionSheetMenuItemButton extends ActionSheetMenuItemButton {
+  MessageActionSheetMenuItemButton({
+    super.key,
+    required this.message,
+    required super.pageContext,
+  }) : assert(pageContext.findAncestorWidgetOfExactType<MessageListPage>() != null);
+
+  final Message message;
+}
+
 // This button is very temporary, to complete #125 before we have a way to
 // choose an arbitrary reaction (#388). So, skipping i18n.
 class AddThumbsUpButton extends MessageActionSheetMenuItemButton {