From: Simon Tatham <anakin@pobox.com>
Date: Mon, 1 Jan 2024 13:12:01 +0000 (+0000)
Subject: Support reading hashtag feeds.
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ian/git?a=commitdiff_plain;h=80031a39b9d6838ba0751e5b468f87a11cc4f17b;p=mastodonochrome.git

Support reading hashtag feeds.

No trouble at all given the existing infrastructure.
---

diff --git a/src/activity_stack.rs b/src/activity_stack.rs
index 604f3fa..fff8f47 100644
--- a/src/activity_stack.rs
+++ b/src/activity_stack.rs
@@ -5,6 +5,7 @@ pub enum NonUtilityActivity {
     PublicTimelineFile,
     LocalTimelineFile,
     SinglePost(String),
+    HashtagTimeline(String),
 }
 
 #[derive(PartialEq, Eq, Debug, Clone)]
@@ -27,6 +28,7 @@ pub enum UtilityActivity {
 pub enum OverlayActivity {
     GetUserToExamine,
     GetPostIdToRead,
+    GetHashtagToRead,
 }
 
 #[derive(PartialEq, Eq, Debug, Clone)]
diff --git a/src/editor.rs b/src/editor.rs
index 1cf5261..8f5c9ed 100644
--- a/src/editor.rs
+++ b/src/editor.rs
@@ -618,3 +618,20 @@ pub fn get_post_id_to_read() -> Box<dyn ActivityState> {
         })
     ))
 }
+
+pub fn get_hashtag_to_read() -> Box<dyn ActivityState> {
+    Box::new(BottomLineEditorOverlay::new(
+        ColouredString::plain("View feed for hashtag: "),
+        Box::new(move |s, _client| {
+            let s = s.trim();
+            let s = s.strip_prefix("#").unwrap_or(s);
+            if s.is_empty() {
+                LogicalAction::PopOverlaySilent
+            } else {
+                LogicalAction::Goto(
+                        NonUtilityActivity::HashtagTimeline(s.to_owned())
+                        .into())
+            }
+        })
+    ))
+}
diff --git a/src/file.rs b/src/file.rs
index a0116af..1f244bb 100644
--- a/src/file.rs
+++ b/src/file.rs
@@ -623,6 +623,16 @@ pub fn ego_log(client: &mut Client) ->
     Ok(Box::new(file))
 }
 
+pub fn hashtag_timeline(client: &mut Client, tag: &str) ->
+    Result<Box<dyn ActivityState>, ClientError>
+{
+    let title = ColouredString::uniform(
+        &format!("Posts mentioning hashtag #{tag}"), 'H');
+    let file = File::<StatusFeedType, _>::new(
+        client, FeedSource::new(FeedId::Hashtag(tag.to_owned())), title)?;
+    Ok(Box::new(file))
+}
+
 struct ExamineUserFileType {}
 impl FileType for ExamineUserFileType {
     type Item = ExamineUserDisplay;
diff --git a/src/menu.rs b/src/menu.rs
index 1143a83..ba256d2 100644
--- a/src/menu.rs
+++ b/src/menu.rs
@@ -195,8 +195,8 @@ pub fn main_menu() -> Box<dyn ActivityState> {
     menu.add_action(Pr('L'), "Local public timeline (this server)",
                     LogicalAction::Goto(
                         NonUtilityActivity::LocalTimelineFile.into()));
-    menu.add_action(Pr('#'), "Timeline for a #hashtag",
-                    LogicalAction::NYI);
+    menu.add_action(Pr('#'), "Timeline for a #hashtag", LogicalAction::Goto(
+        OverlayActivity::GetHashtagToRead.into()));
     menu.add_blank_line();
     menu.add_action(Pr('I'), "View a post by its ID", LogicalAction::Goto(
         OverlayActivity::GetPostIdToRead.into()));
diff --git a/src/tui.rs b/src/tui.rs
index 1be8273..0cad060 100644
--- a/src/tui.rs
+++ b/src/tui.rs
@@ -437,6 +437,8 @@ fn new_activity_state(activity: Activity, client: &mut Client) ->
             public_timeline(client),
         Activity::NonUtil(NonUtilityActivity::LocalTimelineFile) =>
             local_timeline(client),
+        Activity::NonUtil(NonUtilityActivity::HashtagTimeline(ref id)) =>
+            hashtag_timeline(client, id),
         Activity::Util(UtilityActivity::ReadMentions) =>
             mentions(client),
         Activity::Util(UtilityActivity::EgoLog) =>
@@ -445,6 +447,8 @@ fn new_activity_state(activity: Activity, client: &mut Client) ->
             Ok(get_user_to_examine()),
         Activity::Overlay(OverlayActivity::GetPostIdToRead) =>
             Ok(get_post_id_to_read()),
+        Activity::Overlay(OverlayActivity::GetHashtagToRead) =>
+            Ok(get_hashtag_to_read()),
         Activity::Util(UtilityActivity::ExamineUser(ref name)) =>
             examine_user(client, name),
         Activity::NonUtil(NonUtilityActivity::SinglePost(ref id)) =>