Commit f3e69a80 authored by Eli Zaretskii's avatar Eli Zaretskii

Fix display of line numbers in GTK builds

* src/xdisp.c (should_produce_line_number) [USE_GTK]: Make sure
tip_frame is indeed a tooltip frame, before disabling line numbers
on it.  (Bug#27647)

* src/dispextern.h (tip_frame): Add commentary describing the
kludgey usage of this variable in GTK builds.
parent e6f1fd40
......@@ -3452,7 +3452,14 @@ void gamma_correct (struct frame *, COLORREF *);
void x_implicitly_set_name (struct frame *, Lisp_Object, Lisp_Object);
void x_change_tool_bar_height (struct frame *f, int);
/* The frame used to display a tooltip.
Note: In a GTK build with non-zero x_gtk_use_system_tooltips, this
variable holds the frame that shows the tooltip, not the frame of
the tooltip itself, so checking whether a frame is a tooltip frame
cannot just compare the frame to what this variable holds. */
extern Lisp_Object tip_frame;
extern Window tip_window;
extern frame_parm_handler x_frame_parm_handlers[];
......
......@@ -21132,7 +21132,13 @@ should_produce_line_number (struct it *it)
#ifdef HAVE_WINDOW_SYSTEM
/* Don't display line number in tooltip frames. */
if (FRAMEP (tip_frame) && EQ (WINDOW_FRAME (it->w), tip_frame))
if (FRAMEP (tip_frame) && EQ (WINDOW_FRAME (it->w), tip_frame)
#ifdef USE_GTK
/* GTK builds store in tip_frame the frame that shows the tip,
so we need an additional test. */
&& !NILP (Fframe_parameter (tip_frame, Qtooltip))
#endif
)
return false;
#endif
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