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authorMartin Rudalics <rudalics@gmx.at>2021-02-06 18:22:29 +0100
committerMartin Rudalics <rudalics@gmx.at>2021-02-06 18:22:29 +0100
commit29e9cf291eb35a77ad782e56effddf2fa00ee96c (patch)
tree24af9288415937b1ef1cfef2fa40de7cb8a800ef /src/frame.c
parentc0d504eb7e0922be9f9ec6d9b7f1a27c5fc31b33 (diff)
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Permit zero value for 'child-frame-border-width' parameter (Bug#46184)
* doc/lispref/frames.texi (Layout Parameters): Update entry on 'child-frame-border-width' parameter. * src/frame.c (make_frame): Init child_frame_border_width to -1. (Fframe_child_frame_border_width): Return internal border width if child frame border width parameter is nil. (gui_report_frame_params): Report nil as child frame border width parameter if the frame value is negative. * src/frame.h (FRAME_INTERNAL_BORDER_WIDTH): Return value of child frame border width only if it is not negative. * src/xfns.c (Fx_create_frame): Default child frame border to -1 when recording it in its frame slot via gui_default_parameter. * src/nsfns.m (ns_set_child_frame_border_width): Handle nil ARG. (Fx_create_frame): Default child frame border width parameter to nil. * src/w32fns.c (w32_set_child_frame_border_width): Handle nil ARG. (Fx_create_frame): Default child frame border width parameter to nil. * src/xfns.c (x_set_child_frame_border_width): Handle nil ARG. (Fx_create_frame): Default child frame border width parameter to nil.
Diffstat (limited to 'src/frame.c')
-rw-r--r--src/frame.c16
1 files changed, 13 insertions, 3 deletions
diff --git a/src/frame.c b/src/frame.c
index a2167ce1e49..635fc945604 100644
--- a/src/frame.c
+++ b/src/frame.c
@@ -898,6 +898,7 @@ make_frame (bool mini_p)
f->no_accept_focus = false;
f->z_group = z_group_none;
f->tooltip = false;
+ f->child_frame_border_width = -1;
f->last_tab_bar_item = -1;
#ifndef HAVE_EXT_TOOL_BAR
f->last_tool_bar_item = -1;
@@ -3544,10 +3545,17 @@ DEFUN ("frame-fringe-width", Ffringe_width, Sfringe_width, 0, 1, 0,
}
DEFUN ("frame-child-frame-border-width", Fframe_child_frame_border_width, Sframe_child_frame_border_width, 0, 1, 0,
- doc: /* Return width of FRAME's child-frame border in pixels. */)
+ doc: /* Return width of FRAME's child-frame border in pixels.
+ If FRAME's 'child-frame-border-width' parameter is nil, return FRAME's
+ internal border width instead. */)
(Lisp_Object frame)
{
- return make_fixnum (FRAME_CHILD_FRAME_BORDER_WIDTH (decode_any_frame (frame)));
+ int width = FRAME_CHILD_FRAME_BORDER_WIDTH (decode_any_frame (frame));
+
+ if (width < 0)
+ return make_fixnum (FRAME_INTERNAL_BORDER_WIDTH (decode_any_frame (frame)));
+ else
+ return make_fixnum (FRAME_CHILD_FRAME_BORDER_WIDTH (decode_any_frame (frame)));
}
DEFUN ("frame-internal-border-width", Fframe_internal_border_width, Sframe_internal_border_width, 0, 1, 0,
@@ -4311,7 +4319,9 @@ gui_report_frame_params (struct frame *f, Lisp_Object *alistptr)
store_in_alist (alistptr, Qborder_width,
make_fixnum (f->border_width));
store_in_alist (alistptr, Qchild_frame_border_width,
- make_fixnum (FRAME_CHILD_FRAME_BORDER_WIDTH (f)));
+ FRAME_CHILD_FRAME_BORDER_WIDTH (f) >= 0
+ ? make_fixnum (FRAME_CHILD_FRAME_BORDER_WIDTH (f))
+ : Qnil);
store_in_alist (alistptr, Qinternal_border_width,
make_fixnum (FRAME_INTERNAL_BORDER_WIDTH (f)));
store_in_alist (alistptr, Qright_divider_width,