feat: filter channel category tagging

README.md

@@ -85,11 +85,11 @@ The full-description view scrolls with ↓ / ↑, Ctrl-J / Ctrl-K, or PageDown /
 
 ### Text input
 
-These shortcuts work in search, category/channel-filter, and new-tag fields:
+These shortcuts work in search, category/channel/tag-filter, and new-tag fields:
 
 | Key | Action |
 | --- | --- |
-| Enter | Submit the search, browse the selected category/channel, or stage the new tag |
+| Enter | Submit the search, browse the selected category/channel, leave tag-filter mode, or stage the new tag |
 | Esc | Leave insert mode or abandon the new-tag name |
 | Backspace | Delete one character |
 | Option/Alt-Backspace or Ctrl-W | Delete the previous whitespace-delimited word |
@@ -115,9 +115,12 @@ Press **`U` (Shift-U)** on a video to browse its creator directly, including cha
 
 ### Channel tags (`s`, or `S` for bulk editing)
 
-- `j` / `k` or arrow keys navigate; Space toggles a tag.
-- `n` prompts for a new tag name. Enter stages it checked and returns to the list.
-- Enter **in the main tag list** saves the staged memberships. Esc cancels without writing.
+- **Normal:** `j` / `k` or arrow keys navigate; Space toggles a tag; `i` edits the filter.
+- **Insert:** type a case-insensitive substring to filter live; arrow keys or Ctrl-J / Ctrl-K navigate matches. Enter or Esc returns to normal mode without saving or clearing the filter.
+- Filtering only hides rows: checked and unchecked staged memberships outside the filter are retained. With no matches, navigation and toggling do nothing. Reopening the dialog clears its filter.
+- `n` prompts for a new tag name. Enter stages it checked, clears the filter, and selects the new tag; Esc abandons the name.
+- Enter **in the normal-mode tag list** saves all staged memberships, including hidden tags. Esc cancels without writing. These controls apply to both single-channel and bulk tagging.
+- Filter actions are configurable as `tags.edit`, `tags.input.next`, and `tags.input.previous`; text editing uses the shared `input.*` actions.
 
 Bulk editing applies the exact checked tag set to **every saved channel in the current category**, not only channels with loaded videos. Tags shared by every target start checked; mixed memberships start unchecked. Review the checked set before saving: unchecked tags are removed from all targets. Other channels, saved registrations, empty categories, pins, and comments are preserved.
 

src/keys.rs

@@ -17,6 +17,7 @@ pub enum Context {
     SelectorNormal,
     SelectorInput,
     TagList,
+    TagFilter,
     TagInput,
     Help,
 }
@@ -29,6 +30,7 @@ const ALL: &[Context] = &[
     Context::SelectorNormal,
     Context::SelectorInput,
     Context::TagList,
+    Context::TagFilter,
     Context::TagInput,
     Context::Help,
 ];
@@ -36,6 +38,7 @@ const VIEW: &[Context] = &[Context::Normal, Context::Info, Context::Description]
 const TEXT: &[Context] = &[
     Context::SearchInput,
     Context::SelectorInput,
+    Context::TagFilter,
     Context::TagInput,
 ];
 const NON_TEXT: &[Context] = &[
@@ -78,7 +81,7 @@ actions! {
     Interrupt, "app.interrupt", "Exit immediately", ALL, ["ctrl+c"];
     Quit, "app.quit", "Quit the application", &[Context::Normal, Context::Info, Context::Description, Context::Help], ["q"];
     Help, "help.toggle", "Open or close keyboard help", NON_TEXT, ["?"];
-    InputSubmit, "input.submit", "Submit search, selector filter or new tag", TEXT, ["enter"];
+    InputSubmit, "input.submit", "Submit search, browse selector, leave tag filter or stage new tag", TEXT, ["enter"];
     InputCancel, "input.cancel", "Leave text input without submitting", TEXT, ["escape"];
     DeleteCharacter, "input.delete.character", "Delete the previous character", TEXT, ["backspace"];
     DeleteWord, "input.delete.word", "Delete the previous word", TEXT, ["alt+backspace", "ctrl+w"];
@@ -112,6 +115,9 @@ actions! {
     SelectorClose, "selector.close", "Close the category or channel picker", &[Context::SelectorNormal], ["escape"];
     TagNext, "tags.select.next", "Select the next category tag", &[Context::TagList], ["j", "down"];
     TagPrevious, "tags.select.previous", "Select the previous category tag", &[Context::TagList], ["k", "up"];
+    TagEdit, "tags.edit", "Edit the category tag filter", &[Context::TagList], ["i"];
+    TagInputNext, "tags.input.next", "Select the next tag while editing the filter", &[Context::TagFilter], ["down", "ctrl+j"];
+    TagInputPrevious, "tags.input.previous", "Select the previous tag while editing the filter", &[Context::TagFilter], ["up", "ctrl+k"];
     TagToggle, "tags.toggle", "Toggle the selected category tag", &[Context::TagList], ["space"];
     TagNew, "tags.new", "Enter a new category tag name", &[Context::TagList], ["n"];
     TagSave, "tags.save", "Save category tag changes", &[Context::TagList], ["enter"];
@@ -262,7 +268,7 @@ impl Key {
 #[derive(Clone, Debug, PartialEq, Eq)]
 pub struct Bindings {
     labels: Vec<Vec<String>>,
-    contexts: [Vec<(Key, Action)>; 9],
+    contexts: [Vec<(Key, Action)>; ALL.len()],
 }
 
 impl Default for Bindings {
@@ -378,7 +384,7 @@ impl Bindings {
     }
 
     fn build(keys: Vec<Vec<Key>>) -> io::Result<Self> {
-        let mut contexts: [Vec<(Key, Action)>; 9] = std::array::from_fn(|_| Vec::new());
+        let mut contexts: [Vec<(Key, Action)>; ALL.len()] = std::array::from_fn(|_| Vec::new());
         for definition in DEFINITIONS {
             for &context in definition.contexts {
                 let entries = &mut contexts[context as usize];
@@ -483,6 +489,12 @@ impl Bindings {
                 "CHANNEL TAGS",
                 &[
                     (&[TagNext, TagPrevious], "Move between tags"),
+                    (&[TagEdit], "Enter filter INSERT mode"),
+                    (&[TagInputNext, TagInputPrevious], "Move while filtering"),
+                    (
+                        &[InputSubmit, InputCancel],
+                        "Leave tag filter without saving",
+                    ),
                     (&[TagToggle], "Toggle a tag"),
                     (&[TagNew], "Enter a new tag name"),
                     (&[TagSave], "Save tags"),
@@ -565,7 +577,9 @@ impl Bindings {
         }
         if matches!(
             actions,
-            [DescriptionNext, DescriptionPrevious] | [SelectorInputNext, SelectorInputPrevious]
+            [DescriptionNext, DescriptionPrevious]
+                | [SelectorInputNext, SelectorInputPrevious]
+                | [TagInputNext, TagInputPrevious]
         ) && matches(actions[0], &["↓", "Ctrl+j"])
             && matches(actions[1], &["↑", "Ctrl+k"])
         {