LookingGlass/client/displayservers/Wayland/window.c

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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2021 Guanzhong Chen (quantum2048@gmail.com)
Copyright (C) 2021 Tudor Brindus (contact@tbrindus.ca)
https://looking-glass.io
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "wayland.h"
#include <stdbool.h>
#include <string.h>
#include <wayland-client.h>
#include "app.h"
#include "common/debug.h"
// XDG WM base listeners.
static void xdgWmBasePing(void * data, struct xdg_wm_base * xdgWmBase, uint32_t serial)
{
xdg_wm_base_pong(xdgWmBase, serial);
}
static const struct xdg_wm_base_listener xdgWmBaseListener = {
.ping = xdgWmBasePing,
};
// Surface-handling listeners.
static void surfaceUpdateScale(void)
{
int32_t maxScale = 0;
struct SurfaceOutput * node;
wl_list_for_each(node, &wlWm.surfaceOutputs, link)
{
int32_t scale = waylandOutputGetScale(node->output);
if (scale > maxScale)
maxScale = scale;
}
if (maxScale)
{
wlWm.scale = maxScale;
wlWm.needsResize = true;
}
}
static void wlSurfaceEnterHandler(void * data, struct wl_surface * surface, struct wl_output * output)
{
struct SurfaceOutput * node = malloc(sizeof(struct SurfaceOutput));
node->output = output;
wl_list_insert(&wlWm.surfaceOutputs, &node->link);
surfaceUpdateScale();
}
static void wlSurfaceLeaveHandler(void * data, struct wl_surface * surface, struct wl_output * output)
{
struct SurfaceOutput * node;
wl_list_for_each(node, &wlWm.surfaceOutputs, link)
if (node->output == output)
{
wl_list_remove(&node->link);
break;
}
surfaceUpdateScale();
}
static const struct wl_surface_listener wlSurfaceListener = {
.enter = wlSurfaceEnterHandler,
.leave = wlSurfaceLeaveHandler,
};
// XDG Surface listeners.
static void xdgSurfaceConfigure(void * data, struct xdg_surface * xdgSurface,
uint32_t serial)
{
if (wlWm.configured)
{
wlWm.needsResize = true;
wlWm.resizeSerial = serial;
}
else
{
xdg_surface_ack_configure(xdgSurface, serial);
wlWm.configured = true;
}
}
static const struct xdg_surface_listener xdgSurfaceListener = {
.configure = xdgSurfaceConfigure,
};
// XDG Toplevel listeners.
static void xdgToplevelConfigure(void * data, struct xdg_toplevel * xdgToplevel,
int32_t width, int32_t height, struct wl_array * states)
{
wlWm.width = width;
wlWm.height = height;
wlWm.fullscreen = false;
enum xdg_toplevel_state * state;
wl_array_for_each(state, states)
{
if (*state == XDG_TOPLEVEL_STATE_FULLSCREEN)
wlWm.fullscreen = true;
}
}
static void xdgToplevelClose(void * data, struct xdg_toplevel * xdgToplevel)
{
app_handleCloseEvent();
}
static const struct xdg_toplevel_listener xdgToplevelListener = {
.configure = xdgToplevelConfigure,
.close = xdgToplevelClose,
};
bool waylandWindowInit(const char * title, bool fullscreen, bool maximize, bool borderless)
{
wlWm.scale = 1;
if (!wlWm.compositor)
{
DEBUG_ERROR("Compositor missing wl_compositor, will not proceed");
return false;
}
if (!wlWm.xdgWmBase)
{
DEBUG_ERROR("Compositor missing xdg_wm_base, will not proceed");
return false;
}
xdg_wm_base_add_listener(wlWm.xdgWmBase, &xdgWmBaseListener, NULL);
wlWm.surface = wl_compositor_create_surface(wlWm.compositor);
if (!wlWm.surface)
{
DEBUG_ERROR("Failed to create wl_surface");
return false;
}
wl_list_init(&wlWm.surfaceOutputs);
wl_surface_add_listener(wlWm.surface, &wlSurfaceListener, NULL);
wlWm.xdgSurface = xdg_wm_base_get_xdg_surface(wlWm.xdgWmBase, wlWm.surface);
xdg_surface_add_listener(wlWm.xdgSurface, &xdgSurfaceListener, NULL);
wlWm.xdgToplevel = xdg_surface_get_toplevel(wlWm.xdgSurface);
xdg_toplevel_add_listener(wlWm.xdgToplevel, &xdgToplevelListener, NULL);
xdg_toplevel_set_title(wlWm.xdgToplevel, title);
xdg_toplevel_set_app_id(wlWm.xdgToplevel, "looking-glass-client");
if (fullscreen)
xdg_toplevel_set_fullscreen(wlWm.xdgToplevel, NULL);
if (maximize)
xdg_toplevel_set_maximized(wlWm.xdgToplevel);
wl_surface_commit(wlWm.surface);
if (wlWm.xdgDecorationManager)
{
wlWm.xdgToplevelDecoration = zxdg_decoration_manager_v1_get_toplevel_decoration(
wlWm.xdgDecorationManager, wlWm.xdgToplevel);
if (wlWm.xdgToplevelDecoration)
{
zxdg_toplevel_decoration_v1_set_mode(wlWm.xdgToplevelDecoration,
borderless ?
ZXDG_TOPLEVEL_DECORATION_V1_MODE_CLIENT_SIDE :
ZXDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE);
}
}
return true;
}
void waylandWindowFree(void)
{
wl_surface_destroy(wlWm.surface);
}
void waylandSetWindowSize(int x, int y)
{
// FIXME: implement.
}
void waylandSetFullscreen(bool fs)
{
if (fs)
xdg_toplevel_set_fullscreen(wlWm.xdgToplevel, NULL);
else
xdg_toplevel_unset_fullscreen(wlWm.xdgToplevel);
}
bool waylandGetFullscreen(void)
{
return wlWm.fullscreen;
}
bool waylandIsValidPointerPos(int x, int y)
{
return x >= 0 && x < wlWm.width && y >= 0 && y < wlWm.height;
}