`2b684a0`

feat: auto-scroll when dragging selection outside window bounds

Authored by mfwolffe <wolffemf@dukes.jmu.edu> 3 months ago

SHA: 2b684a0823bcd8a2010226550dd945df26fa7e5a
Parents: 0c9f13c
Tree: 9cc7efe

1 changed file

Status	File	+	-
M	`garterm/src/app.rs`	31	7

garterm/src/app.rsmodified

+             }
+         }
 -        // Update selection during drag
 +        // Update selection during drag (with auto-scroll when outside bounds)
          if self.selection.is_active() && state & 0x100 != 0 {
 -            if let Some(pane) = self.tabs.focused_pane() {
 -                // Convert viewport row to absolute row
 +            if let Some(pane) = self.tabs.focused_pane_mut() {
 +                let rows = pane.terminal.rows();
 +                let content_height = (rows as f32 * cell_h) as i16;
 +                let raw_y = event.event_y - content_offset;
++
 +                // Check if mouse is outside content bounds
 +                if raw_y < 0 {
 +                    // Mouse above content - scroll up into scrollback
 +                    let scroll_amount = ((-raw_y) as usize / cell_h as usize).max(1).min(5);
 +                    pane.terminal.scroll_up(scroll_amount);
++
 +                    // Update selection to top visible row
 +                    let abs_row = pane.terminal.grid().visible_row_to_absolute(0);
 +                    self.selection.update(abs_row, col);
 +                    pane.mark_dirty();
 +                } else if raw_y > content_height {
 +                    // Mouse below content - scroll down (toward bottom)
 +                    let overshoot = (raw_y - content_height) as usize;
 +                    let scroll_amount = (overshoot / cell_h as usize).max(1).min(5);
 +                    pane.terminal.scroll_down(scroll_amount);
++
 +                    // Update selection to bottom visible row
 +                    let abs_row = pane.terminal.grid().visible_row_to_absolute(rows.saturating_sub(1));
 +                    self.selection.update(abs_row, col);
 +                    pane.mark_dirty();
 +                } else {
 +                    // Normal case - mouse within bounds
                      let abs_row = pane.terminal.grid().visible_row_to_absolute(row);
                      self.selection.update(abs_row, col);
 -            }
 -            if let Some(pane) = self.tabs.focused_pane_mut() {
                      pane.mark_dirty();
+                 }
+             }
 +        }
          Ok(())
+     }