Mouse support on the scrollbars, from Michael Grant.

Author: nicm

Diff for: cmd-copy-mode.c

@@ -30,8 +30,8 @@ const struct cmd_entry cmd_copy_mode_entry = {
 	.name = "copy-mode",
 	.alias = NULL,
 
-	.args = { "deHMs:t:uq", 0, 0, NULL },
-	.usage = "[-deHMuq] [-s src-pane] " CMD_TARGET_PANE_USAGE,
+	.args = { "deHMqSs:t:u", 0, 0, NULL },
+	.usage = "[-deHMqSu] [-s src-pane] " CMD_TARGET_PANE_USAGE,
 
 	.source =  { 's', CMD_FIND_PANE, 0 },
 	.target = { 't', CMD_FIND_PANE, 0 },
@@ -92,7 +92,12 @@ cmd_copy_mode_exec(struct cmd *self, struct cmdq_item *item)
 	if (args_has(args, 'u'))
 		window_copy_pageup(wp, 0);
 	if (args_has(args, 'd'))
-                window_copy_pagedown(wp, 0, args_has(args, 'e'));
+		window_copy_pagedown(wp, 0, args_has(args, 'e'));
+	if (args_has(args, 'S')) {
+		window_copy_scroll(wp, c->tty.mouse_slider_mpos, event->m.y,
+		    args_has(args, 'e'));
+		return (CMD_RETURN_NORMAL);
+	}
 
 	return (CMD_RETURN_NORMAL);
 }

Diff for: key-bindings.c

@@ -478,6 +478,11 @@ key_bindings_init(void)
 		"bind -n MouseDown3Pane { if -Ft= '#{||:#{mouse_any_flag},#{&&:#{pane_in_mode},#{?#{m/r:(copy|view)-mode,#{pane_mode}},0,1}}}' { select-pane -t=; send -M } { display-menu -t= -xM -yM -T '#[align=centre]#{pane_index} (#{pane_id})' " DEFAULT_PANE_MENU " } }",
 		"bind -n M-MouseDown3Pane { display-menu -t= -xM -yM -T '#[align=centre]#{pane_index} (#{pane_id})' " DEFAULT_PANE_MENU " }",
 
+		/* Mouse on scrollbar. */
+		"bind -n MouseDown1ScrollbarUp { copy-mode -u }",
+		"bind -n MouseDown1ScrollbarDown { copy-mode -d }",
+		"bind -n MouseDrag1ScrollbarSlider { copy-mode -S }",
+
 		/* Copy mode (emacs) keys. */
 		"bind -Tcopy-mode C-Space { send -X begin-selection }",
 		"bind -Tcopy-mode C-a { send -X start-of-line }",

Diff for: screen-redraw.c

@@ -1001,6 +1001,10 @@ screen_redraw_draw_pane_scrollbar(struct screen_redraw_ctx *ctx,
 
 	screen_redraw_draw_scrollbar(ctx, wp, sb_pos, sb_x, sb_y, sb_h,
 	    slider_h, slider_y);
+
+	/* Store current position and height of the slider */
+	wp->sb_slider_y = slider_y;  /* top of slider y pos in scrollbar */
+	wp->sb_slider_h = slider_h;  /* height of slider */
 }
 
 static void