feat(actions): add SelectNextHalfPage & SelectPrevHalfPage actions

Author: rudenkornk

television/action.rs

@@ -55,6 +55,10 @@ pub enum Action {
     SelectNextPage,
     /// Select the previous page of entries in the currently focused list.
     SelectPrevPage,
+    /// Select the next half page of entries in the currently focused list.
+    SelectNextHalfPage,
+    /// Select the previous half page of entries in the currently focused list.
+    SelectPrevHalfPage,
     /// Copy the currently selected entry to the clipboard.
     CopyEntryToClipboard,
     // preview actions
@@ -368,6 +372,8 @@ impl Action {
             Action::SelectPrevEntry => "Navigate up",
             Action::SelectNextPage => "Page down",
             Action::SelectPrevPage => "Page up",
+            Action::SelectNextHalfPage => "Half page down",
+            Action::SelectPrevHalfPage => "Half page up",
             Action::CopyEntryToClipboard => "Copy to clipboard",
 
             // Preview actions

television/config/keybindings.rs

@@ -523,6 +523,8 @@ mod tests {
                 "ctrl-k" = "select_prev_entry"
                 "pagedown" = "select_next_page"
                 "pageup" = "select_prev_page"
+                "ctrl-f" = "select_next_half_page"
+                "ctrl-b" = "select_prev_half_page"
                 "ctrl-d" = "scroll_preview_half_page_down"
                 "ctrl-u" = "scroll_preview_half_page_up"
                 "tab" = "toggle_selection_down"
@@ -547,6 +549,9 @@ mod tests {
                 (Key::Ctrl('p'), Action::SelectPrevEntry),
                 (Key::Ctrl('k'), Action::SelectPrevEntry),
                 (Key::PageDown, Action::SelectNextPage),
+                (Key::Ctrl('f'), Action::SelectNextHalfPage),
+                (Key::Ctrl('b'), Action::SelectPrevHalfPage),
+                (Key::PageUp, Action::SelectPrevPage),
                 (Key::PageUp, Action::SelectPrevPage),
                 (Key::Ctrl('d'), Action::ScrollPreviewHalfPageDown),
                 (Key::Ctrl('u'), Action::ScrollPreviewHalfPageUp),

television/screen/help_panel.rs

@@ -78,6 +78,8 @@ fn is_action_relevant_for_mode(action: &Action, mode: Mode) -> bool {
                 | Action::SelectPrevEntry
                 | Action::SelectNextPage
                 | Action::SelectPrevPage
+                | Action::SelectNextHalfPage
+                | Action::SelectPrevHalfPage
                 // Selection actions - channel specific (multi-select)
                 | Action::ToggleSelectionDown
                 | Action::ToggleSelectionUp
@@ -143,6 +145,8 @@ fn is_action_relevant_for_mode(action: &Action, mode: Mode) -> bool {
                 | Action::SelectPrevEntry
                 | Action::SelectNextPage
                 | Action::SelectPrevPage
+                | Action::SelectNextHalfPage
+                | Action::SelectPrevHalfPage
                 // Selection in remote mode - just confirm (no multi-select)
                 | Action::ConfirmSelection
                 // UI toggles - global

television/television.rs

@@ -599,6 +599,8 @@ impl Television {
                     | Action::SelectPrevEntry
                     | Action::SelectNextPage
                     | Action::SelectPrevPage
+                    | Action::SelectNextHalfPage
+                    | Action::SelectPrevHalfPage
                     | Action::ScrollPreviewDown
                     | Action::ScrollPreviewUp
                     | Action::ScrollPreviewHalfPageDown
@@ -985,6 +987,36 @@ impl Television {
                     );
                 }
             }
+            Action::SelectNextHalfPage => {
+                if matches!(self.mode, Mode::Channel) {
+                    self.move_cursor(
+                        Movement::Next,
+                        (self
+                            .ui_state
+                            .layout
+                            .results
+                            .height
+                            .saturating_sub(2)
+                            / 2)
+                        .into(),
+                    );
+                }
+            }
+            Action::SelectPrevHalfPage => {
+                if matches!(self.mode, Mode::Channel) {
+                    self.move_cursor(
+                        Movement::Prev,
+                        (self
+                            .ui_state
+                            .layout
+                            .results
+                            .height
+                            .saturating_sub(2)
+                            / 2)
+                        .into(),
+                    );
+                }
+            }
             Action::ScrollPreviewDown => self.preview_state.scroll_down(1),
             Action::ScrollPreviewUp => self.preview_state.scroll_up(1),
             Action::ScrollPreviewHalfPageDown => {