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wayland: configure: adjust configured size when using CSDs

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The size (width, height) arguments provided by the compositor in the
XDG toplevel configure event *include* the surrounding CSDs.

Since our code assumes the size is for the main surface only (and then
positions the sub-surfaces *outside* the main surface), adjust the
provided size when using CSDs.

This ensures our actual window size ends up being what the compositor
wants it to be, and it fixes resize-glitches when resizing using CSDs.
This commit is contained in:
Daniel Eklöf 2020-02-26 12:26:03 +01:00
parent ea97a0dc87
commit 135ca0884d
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GPG key ID: 5BBD4992C116573F
1 changed files with 19 additions and 1 deletions
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wayland.c
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@ -426,6 +426,7 @@ xdg_toplevel_configure(void *data, struct xdg_toplevel *xdg_toplevel,
int32_t width, int32_t height, struct wl_array *states)
{
bool is_activated = false;
bool is_resizing = false;
#if defined(LOG_ENABLE_DBG) && LOG_ENABLE_DBG
char state_str[2048];
@ -450,9 +451,12 @@ xdg_toplevel_configure(void *data, struct xdg_toplevel *xdg_toplevel,
is_activated = true;
break;
case XDG_TOPLEVEL_STATE_RESIZING:
is_resizing = true;
break;
case XDG_TOPLEVEL_STATE_MAXIMIZED:
case XDG_TOPLEVEL_STATE_FULLSCREEN:
case XDG_TOPLEVEL_STATE_RESIZING:
case XDG_TOPLEVEL_STATE_TILED_LEFT:
case XDG_TOPLEVEL_STATE_TILED_RIGHT:
case XDG_TOPLEVEL_STATE_TILED_TOP:
@ -490,6 +494,20 @@ xdg_toplevel_configure(void *data, struct xdg_toplevel *xdg_toplevel,
* xdg_surface_configure() after we've ack:ed the event.
*/
struct wl_window *win = data;
if (win->use_csd == CSD_YES && width != 0 && height != 0) {
/*
* The size received here is the *total* window size.
*
* This *includes* the (negatively positioned) CSD
* sub-surfaces. Thus, since our resize code assumes the size
* to resize to is the main window only, adjust the size here,
* to account for the CSDs.
*/
width -= 2 * csd_border_size * win->term->scale;
height -= (2 * csd_border_size + csd_title_size) * win->term->scale;
}
win->configure.is_activated = is_activated;
win->configure.width = width;
win->configure.height = height;