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wayland: Send edge constraints

Browse Source 
Following up the previous patch, this patch makes the
Wayland backend send the edge constraints through a
custom protocol extension internal to GTK.

As it mature, we can think of upstreaming the protocol
to Wayland itself.

https://bugzilla.gnome.org/show_bug.cgi?id=751857
This commit is contained in:
Georges Basile Stavracas Neto 2017-08-17 00:49:36 -03:00
parent d89d5af040
commit 437ab625ed
3 changed files with 122 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

113
src/wayland/meta-wayland-gtk-shell.c
View File

@ -148,31 +148,124 @@ gtk_surface_surface_destroyed (MetaWaylandGtkSurface *gtk_surface)
}
static void
fill_states (struct wl_array *states,
MetaWindow *window)
fill_edge_states (struct wl_array *states,
MetaWindow *window)
{
uint32_t *s;
if (window->tile_mode == META_TILE_LEFT ||
window->tile_mode == META_TILE_RIGHT)
/* Top */
if (window->edge_constraints[0] != META_EDGE_CONSTRAINT_MONITOR)
{
s = wl_array_add (states, sizeof *s);
*s = GTK_SURFACE1_EDGE_CONSTRAINT_RESIZABLE_TOP;
}
/* Right */
if (window->edge_constraints[1] != META_EDGE_CONSTRAINT_MONITOR)
{
s = wl_array_add (states, sizeof *s);
*s = GTK_SURFACE1_EDGE_CONSTRAINT_RESIZABLE_RIGHT;
}
/* Bottom */
if (window->edge_constraints[2] != META_EDGE_CONSTRAINT_MONITOR)
{
s = wl_array_add (states, sizeof *s);
*s = GTK_SURFACE1_EDGE_CONSTRAINT_RESIZABLE_BOTTOM;
}
/* Left */
if (window->edge_constraints[3] != META_EDGE_CONSTRAINT_MONITOR)
{
s = wl_array_add (states, sizeof *s);
*s = GTK_SURFACE1_EDGE_CONSTRAINT_RESIZABLE_LEFT;
}
}
static void
send_configure_edges (MetaWaylandGtkSurface *gtk_surface,
MetaWindow *window)
{
struct wl_array edge_states;
wl_array_init (&edge_states);
fill_edge_states (&edge_states, window);
gtk_surface1_send_configure_edges (gtk_surface->resource, &edge_states);
wl_array_release (&edge_states);
}
static void
fill_states (struct wl_array *states,
MetaWindow *window,
struct wl_resource *resource)
{
uint32_t *s;
guint version;
version = wl_resource_get_version (resource);
if (version < GTK_SURFACE1_CONFIGURE_EDGES_SINCE_VERSION &&
(window->tile_mode == META_TILE_LEFT ||
window->tile_mode == META_TILE_RIGHT))
{
s = wl_array_add (states, sizeof *s);
*s = GTK_SURFACE1_STATE_TILED;
}
if (version >= GTK_SURFACE1_STATE_TILED_TOP_SINCE_VERSION &&
window->edge_constraints[0] != META_EDGE_CONSTRAINT_NONE)
{
s = wl_array_add (states, sizeof *s);
*s = GTK_SURFACE1_STATE_TILED_TOP;
}
if (version >= GTK_SURFACE1_STATE_TILED_RIGHT_SINCE_VERSION &&
window->edge_constraints[1] != META_EDGE_CONSTRAINT_NONE)
{
s = wl_array_add (states, sizeof *s);
*s = GTK_SURFACE1_STATE_TILED_RIGHT;
}
if (version >= GTK_SURFACE1_STATE_TILED_BOTTOM_SINCE_VERSION &&
window->edge_constraints[2] != META_EDGE_CONSTRAINT_NONE)
{
s = wl_array_add (states, sizeof *s);
*s = GTK_SURFACE1_STATE_TILED_BOTTOM;
}
if (version >= GTK_SURFACE1_STATE_TILED_LEFT_SINCE_VERSION &&
window->edge_constraints[3] != META_EDGE_CONSTRAINT_NONE)
{
s = wl_array_add (states, sizeof *s);
*s = GTK_SURFACE1_STATE_TILED_LEFT;
}
}
static void
send_configure (MetaWaylandGtkSurface *gtk_surface,
MetaWindow *window)
{
struct wl_array states;
wl_array_init (&states);
fill_states (&states, window, gtk_surface->resource);
gtk_surface1_send_configure (gtk_surface->resource, &states);
wl_array_release (&states);
}
static void
on_configure (MetaWaylandSurface *surface,
MetaWaylandGtkSurface *gtk_surface)
{
struct wl_array states;
send_configure (gtk_surface, surface->window);
wl_array_init (&states);
fill_states (&states, surface->window);
gtk_surface1_send_configure (gtk_surface->resource, &states);
wl_array_release (&states);
if (wl_resource_get_version (gtk_surface->resource) >= GTK_SURFACE1_CONFIGURE_EDGES_SINCE_VERSION)
send_configure_edges (gtk_surface, surface->window);
}
static void

2
src/wayland/meta-wayland-versions.h
View File

@ -42,7 +42,7 @@
#define META_WL_SEAT_VERSION 5
#define META_WL_OUTPUT_VERSION 2
#define META_XSERVER_VERSION 1
#define META_GTK_SHELL1_VERSION 1
#define META_GTK_SHELL1_VERSION 2
#define META_WL_SUBCOMPOSITOR_VERSION 1
#define META_ZWP_POINTER_GESTURES_V1_VERSION 1
#define META_ZXDG_EXPORTER_V1_VERSION 1

20
src/wayland/protocol/gtk-shell.xml
View File

@ -1,6 +1,6 @@
<protocol name="gtk">
<interface name="gtk_shell1" version="1">
<interface name="gtk_shell1" version="2">
<description summary="gtk specific extensions">
gtk_shell is a protocol extension providing additional features for
clients implementing it.
@ -30,7 +30,7 @@
</request>
</interface>
<interface name="gtk_surface1" version="1">
<interface name="gtk_surface1" version="2">
<request name="set_dbus_properties">
<arg name="application_id" type="string" allow-null="true"/>
<arg name="app_menu_path" type="string" allow-null="true"/>
@ -51,11 +51,27 @@
<enum name="state">
<entry name="tiled" value="1"/>
<entry name="tiled_top" value="2" since="2" />
<entry name="tiled_right" value="3" since="2" />
<entry name="tiled_bottom" value="4" since="2" />
<entry name="tiled_left" value="5" since="2" />
</enum>
<enum name="edge_constraint" since="2">
<entry name="resizable_top" value="1"/>
<entry name="resizable_right" value="2"/>
<entry name="resizable_bottom" value="3"/>
<entry name="resizable_left" value="4"/>
</enum>
<event name="configure">
<arg name="states" type="array"/>
</event>
<event name="configure_edges" since="2">
<arg name="constraints" type="array"/>
</event>
</interface>
</protocol>