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wayland: properly restore window size when being un-tiled

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Bind to xdg-shell version 2 if available, as this enables us to
track our window’s ‘tiled’ state in the ‘configure’ events.

This in turn allows us to stash the ‘old’ window size when being
tiled, to be used again when restoring the window size when un-tiled.
This commit is contained in:
Daniel Eklöf 2020-10-20 20:58:03 +02:00
parent f70d36ed5d
commit f928c1fa68
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GPG key ID: 5BBD4992C116573F
5 changed files with 52 additions and 17 deletions
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38
wayland.c
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@ -485,6 +485,10 @@ xdg_toplevel_configure(void *data, struct xdg_toplevel *xdg_toplevel,
bool is_activated = false;
bool is_fullscreen = false;
bool is_maximized = false;
bool is_tiled_top = false;
bool is_tiled_bottom = false;
bool is_tiled_left = false;
bool is_tiled_right = false;
#if defined(LOG_ENABLE_DBG) && LOG_ENABLE_DBG
char state_str[2048];
@ -505,16 +509,17 @@ xdg_toplevel_configure(void *data, struct xdg_toplevel *xdg_toplevel,
enum xdg_toplevel_state *state;
wl_array_for_each(state, states) {
switch (*state) {
case XDG_TOPLEVEL_STATE_ACTIVATED: is_activated = true; break;
case XDG_TOPLEVEL_STATE_FULLSCREEN: is_fullscreen = true; break;
case XDG_TOPLEVEL_STATE_MAXIMIZED: is_maximized = true; break;
case XDG_TOPLEVEL_STATE_ACTIVATED: is_activated = true; break;
case XDG_TOPLEVEL_STATE_FULLSCREEN: is_fullscreen = true; break;
case XDG_TOPLEVEL_STATE_MAXIMIZED: is_maximized = true; break;
case XDG_TOPLEVEL_STATE_TILED_LEFT: is_tiled_left = true; break;
case XDG_TOPLEVEL_STATE_TILED_RIGHT: is_tiled_right = true; break;
case XDG_TOPLEVEL_STATE_TILED_TOP: is_tiled_top = true; break;
case XDG_TOPLEVEL_STATE_TILED_BOTTOM: is_tiled_bottom = true; break;
case XDG_TOPLEVEL_STATE_RESIZING:
case XDG_TOPLEVEL_STATE_TILED_LEFT:
case XDG_TOPLEVEL_STATE_TILED_RIGHT:
case XDG_TOPLEVEL_STATE_TILED_TOP:
case XDG_TOPLEVEL_STATE_TILED_BOTTOM:
/* Ignored */
/* TODO: throttle? */
break;
}
@ -535,7 +540,7 @@ xdg_toplevel_configure(void *data, struct xdg_toplevel *xdg_toplevel,
else
state_str[0] = '\0';
LOG_DBG("xdg-toplevel: configure: size=%dx%d, states=%s",
LOG_DBG("xdg-toplevel: configure: size=%dx%d, states=[%s]",
width, height, state_str);
#endif
@ -559,6 +564,10 @@ xdg_toplevel_configure(void *data, struct xdg_toplevel *xdg_toplevel,
win->configure.is_activated = is_activated;
win->configure.is_fullscreen = is_fullscreen;
win->configure.is_maximized = is_maximized;
win->configure.is_tiled_top = is_tiled_top;
win->configure.is_tiled_bottom = is_tiled_bottom;
win->configure.is_tiled_left = is_tiled_left;
win->configure.is_tiled_right = is_tiled_right;
win->configure.width = width;
win->configure.height = height;
}
@ -589,6 +598,11 @@ xdg_surface_configure(void *data, struct xdg_surface *xdg_surface,
bool wasnt_configured = !win->is_configured;
win->is_configured = true;
win->is_maximized = win->configure.is_maximized;
win->is_tiled_top = win->configure.is_tiled_top;
win->is_tiled_bottom = win->configure.is_tiled_bottom;
win->is_tiled_left = win->configure.is_tiled_left;
win->is_tiled_right = win->configure.is_tiled_right;
win->is_tiled = win->is_tiled_top || win->is_tiled_bottom || win->is_tiled_left || win->is_tiled_right;
if (win->is_fullscreen != win->configure.is_fullscreen && win->use_csd == CSD_YES) {
if (win->configure.is_fullscreen)
@ -737,8 +751,14 @@ handle_global(void *data, struct wl_registry *registry,
if (!verify_iface_version(interface, version, required))
return;
/*
* We *require* version 1, but _can_ use version 2. Version 2
* adds 'tiled' window states. We use that information to
* restore the window size when window is un-tiled.
*/
wayl->shell = wl_registry_bind(
wayl->registry, name, &xdg_wm_base_interface, required);
wayl->registry, name, &xdg_wm_base_interface, min(version, 2));
xdg_wm_base_add_listener(wayl->shell, &xdg_wm_base_listener, wayl);
}