Add blinking cursor support

This adds support for blinking the terminal cursor. This can be
controlled either using the configuration file, or using escape
sequences.

The supported control sequences for changing the blinking state are
`CSI Ps SP q` and private mode 12.

1 files changed, 6 insertions, 1 deletions

diff --git a/alacritty/src/display.rs b/alacritty/src/display.rs
index af21001e..451874c8 100644
--- a/alacritty/src/display.rs
+++ b/alacritty/src/display.rs
@@ -160,6 +160,9 @@ pub struct Display {
     #[cfg(not(any(target_os = "macos", windows)))]
     pub is_x11: bool,
 
+    /// UI cursor visibility for blinking.
+    pub cursor_hidden: bool,
+
     renderer: QuadRenderer,
     glyph_cache: GlyphCache,
     meter: Meter,
@@ -300,6 +303,7 @@ impl Display {
             is_x11,
             #[cfg(all(feature = "wayland", not(any(target_os = "macos", windows))))]
             wayland_event_queue,
+            cursor_hidden: false,
         })
     }
 
@@ -442,8 +446,9 @@ impl Display {
         let viewport_match = search_state
             .focused_match()
             .and_then(|focused_match| terminal.grid().clamp_buffer_range_to_visible(focused_match));
+        let cursor_hidden = self.cursor_hidden || search_state.regex().is_some();
 
-        let grid_cells = terminal.renderable_cells(config, !search_active).collect::<Vec<_>>();
+        let grid_cells = terminal.renderable_cells(config, !cursor_hidden).collect::<Vec<_>>();
         let visual_bell_intensity = terminal.visual_bell.intensity();
         let background_color = terminal.background_color();
         let cursor_point = terminal.grid().cursor.point;