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wayland: Add the xdg-foreign-unstable-v2 protocol

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Add the xdg-foreign-unstable-v2 protocol and use it to create export handles for toplevel windows, which will be used when an external component, such as the file chooser portal, requires it.
This commit is contained in:
Frank Praznik 2024-03-15 11:36:05 -04:00
parent db31367999
commit 19764ffcc8
6 changed files with 279 additions and 28 deletions
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57
include/SDL3/SDL_video.h
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@ -1111,6 +1111,8 @@ extern DECLSPEC SDL_Window *SDLCALL SDL_GetWindowParent(SDL_Window *window);
* with the window
* - `SDL_PROP_WINDOW_WAYLAND_XDG_TOPLEVEL_POINTER`: the xdg_toplevel role
* associated with the window
* - 'SDL_PROP_WINDOW_WAYLAND_XDG_TOPLEVEL_EXPORT_HANDLE_POINTER': the export
* handle associated with the window
* - `SDL_PROP_WINDOW_WAYLAND_XDG_POPUP_POINTER`: the xdg_popup role
* associated with the window
* - `SDL_PROP_WINDOW_WAYLAND_XDG_POSITIONER_POINTER`: the xdg_positioner
@ -1136,33 +1138,34 @@ extern DECLSPEC SDL_Window *SDLCALL SDL_GetWindowParent(SDL_Window *window);
*/
extern DECLSPEC SDL_PropertiesID SDLCALL SDL_GetWindowProperties(SDL_Window *window);
#define SDL_PROP_WINDOW_SHAPE_POINTER "SDL.window.shape"
#define SDL_PROP_WINDOW_ANDROID_WINDOW_POINTER "SDL.window.android.window"
#define SDL_PROP_WINDOW_ANDROID_SURFACE_POINTER "SDL.window.android.surface"
#define SDL_PROP_WINDOW_UIKIT_WINDOW_POINTER "SDL.window.uikit.window"
#define SDL_PROP_WINDOW_UIKIT_METAL_VIEW_TAG_NUMBER "SDL.window.uikit.metal_view_tag"
#define SDL_PROP_WINDOW_KMSDRM_DEVICE_INDEX_NUMBER "SDL.window.kmsdrm.dev_index"
#define SDL_PROP_WINDOW_KMSDRM_DRM_FD_NUMBER "SDL.window.kmsdrm.drm_fd"
#define SDL_PROP_WINDOW_KMSDRM_GBM_DEVICE_POINTER "SDL.window.kmsdrm.gbm_dev"
#define SDL_PROP_WINDOW_COCOA_WINDOW_POINTER "SDL.window.cocoa.window"
#define SDL_PROP_WINDOW_COCOA_METAL_VIEW_TAG_NUMBER "SDL.window.cocoa.metal_view_tag"
#define SDL_PROP_WINDOW_VIVANTE_DISPLAY_POINTER "SDL.window.vivante.display"
#define SDL_PROP_WINDOW_VIVANTE_WINDOW_POINTER "SDL.window.vivante.window"
#define SDL_PROP_WINDOW_VIVANTE_SURFACE_POINTER "SDL.window.vivante.surface"
#define SDL_PROP_WINDOW_WINRT_WINDOW_POINTER "SDL.window.winrt.window"
#define SDL_PROP_WINDOW_WIN32_HWND_POINTER "SDL.window.win32.hwnd"
#define SDL_PROP_WINDOW_WIN32_HDC_POINTER "SDL.window.win32.hdc"
#define SDL_PROP_WINDOW_WIN32_INSTANCE_POINTER "SDL.window.win32.instance"
#define SDL_PROP_WINDOW_WAYLAND_DISPLAY_POINTER "SDL.window.wayland.display"
#define SDL_PROP_WINDOW_WAYLAND_SURFACE_POINTER "SDL.window.wayland.surface"
#define SDL_PROP_WINDOW_WAYLAND_EGL_WINDOW_POINTER "SDL.window.wayland.egl_window"
#define SDL_PROP_WINDOW_WAYLAND_XDG_SURFACE_POINTER "SDL.window.wayland.xdg_surface"
#define SDL_PROP_WINDOW_WAYLAND_XDG_TOPLEVEL_POINTER "SDL.window.wayland.xdg_toplevel"
#define SDL_PROP_WINDOW_WAYLAND_XDG_POPUP_POINTER "SDL.window.wayland.xdg_popup"
#define SDL_PROP_WINDOW_WAYLAND_XDG_POSITIONER_POINTER "SDL.window.wayland.xdg_positioner"
#define SDL_PROP_WINDOW_X11_DISPLAY_POINTER "SDL.window.x11.display"
#define SDL_PROP_WINDOW_X11_SCREEN_NUMBER "SDL.window.x11.screen"
#define SDL_PROP_WINDOW_X11_WINDOW_NUMBER "SDL.window.x11.window"
#define SDL_PROP_WINDOW_SHAPE_POINTER "SDL.window.shape"
#define SDL_PROP_WINDOW_ANDROID_WINDOW_POINTER "SDL.window.android.window"
#define SDL_PROP_WINDOW_ANDROID_SURFACE_POINTER "SDL.window.android.surface"
#define SDL_PROP_WINDOW_UIKIT_WINDOW_POINTER "SDL.window.uikit.window"
#define SDL_PROP_WINDOW_UIKIT_METAL_VIEW_TAG_NUMBER "SDL.window.uikit.metal_view_tag"
#define SDL_PROP_WINDOW_KMSDRM_DEVICE_INDEX_NUMBER "SDL.window.kmsdrm.dev_index"
#define SDL_PROP_WINDOW_KMSDRM_DRM_FD_NUMBER "SDL.window.kmsdrm.drm_fd"
#define SDL_PROP_WINDOW_KMSDRM_GBM_DEVICE_POINTER "SDL.window.kmsdrm.gbm_dev"
#define SDL_PROP_WINDOW_COCOA_WINDOW_POINTER "SDL.window.cocoa.window"
#define SDL_PROP_WINDOW_COCOA_METAL_VIEW_TAG_NUMBER "SDL.window.cocoa.metal_view_tag"
#define SDL_PROP_WINDOW_VIVANTE_DISPLAY_POINTER "SDL.window.vivante.display"
#define SDL_PROP_WINDOW_VIVANTE_WINDOW_POINTER "SDL.window.vivante.window"
#define SDL_PROP_WINDOW_VIVANTE_SURFACE_POINTER "SDL.window.vivante.surface"
#define SDL_PROP_WINDOW_WINRT_WINDOW_POINTER "SDL.window.winrt.window"
#define SDL_PROP_WINDOW_WIN32_HWND_POINTER "SDL.window.win32.hwnd"
#define SDL_PROP_WINDOW_WIN32_HDC_POINTER "SDL.window.win32.hdc"
#define SDL_PROP_WINDOW_WIN32_INSTANCE_POINTER "SDL.window.win32.instance"
#define SDL_PROP_WINDOW_WAYLAND_DISPLAY_POINTER "SDL.window.wayland.display"
#define SDL_PROP_WINDOW_WAYLAND_SURFACE_POINTER "SDL.window.wayland.surface"
#define SDL_PROP_WINDOW_WAYLAND_EGL_WINDOW_POINTER "SDL.window.wayland.egl_window"
#define SDL_PROP_WINDOW_WAYLAND_XDG_SURFACE_POINTER "SDL.window.wayland.xdg_surface"
#define SDL_PROP_WINDOW_WAYLAND_XDG_TOPLEVEL_POINTER "SDL.window.wayland.xdg_toplevel"
#define SDL_PROP_WINDOW_WAYLAND_XDG_TOPLEVEL_EXPORT_HANDLE_POINTER "SDL.window.wayland.xdg_toplevel_export_handle"
#define SDL_PROP_WINDOW_WAYLAND_XDG_POPUP_POINTER "SDL.window.wayland.xdg_popup"
#define SDL_PROP_WINDOW_WAYLAND_XDG_POSITIONER_POINTER "SDL.window.wayland.xdg_positioner"
#define SDL_PROP_WINDOW_X11_DISPLAY_POINTER "SDL.window.x11.display"
#define SDL_PROP_WINDOW_X11_SCREEN_NUMBER "SDL.window.x11.screen"
#define SDL_PROP_WINDOW_X11_WINDOW_NUMBER "SDL.window.x11.window"
/**
* Get the window flags.

8
src/video/wayland/SDL_waylandvideo.c
View File

@ -57,6 +57,7 @@
#include "viewporter-client-protocol.h"
#include "xdg-activation-v1-client-protocol.h"
#include "xdg-decoration-unstable-v1-client-protocol.h"
#include "xdg-foreign-unstable-v2-client-protocol.h"
#include "xdg-output-unstable-v1-client-protocol.h"
#include "xdg-shell-client-protocol.h"
@ -1078,6 +1079,8 @@ static void display_handle_global(void *data, struct wl_registry *registry, uint
if (d->input) {
Wayland_CreateCursorShapeDevice(d->input);
}
} else if (SDL_strcmp(interface, "zxdg_exporter_v2") == 0) {
d->zxdg_exporter_v2 = wl_registry_bind(d->registry, id, &zxdg_exporter_v2_interface, 1);
} else if (SDL_strcmp(interface, "kde_output_order_v1") == 0) {
d->kde_output_order = wl_registry_bind(d->registry, id, &kde_output_order_v1_interface, 1);
kde_output_order_v1_add_listener(d->kde_output_order, &kde_output_order_listener, d);
@ -1331,6 +1334,11 @@ static void Wayland_VideoCleanup(SDL_VideoDevice *_this)
data->cursor_shape_manager = NULL;
}
if (data->zxdg_exporter_v2) {
zxdg_exporter_v2_destroy(data->zxdg_exporter_v2);
data->zxdg_exporter_v2 = NULL;
}
if (data->kde_output_order) {
Wayland_FlushOutputOrder(data);
kde_output_order_v1_destroy(data->kde_output_order);

1
src/video/wayland/SDL_waylandvideo.h
View File

@ -79,6 +79,7 @@ struct SDL_VideoData
struct wp_viewporter *viewporter;
struct wp_fractional_scale_manager_v1 *fractional_scale_manager;
struct zwp_input_timestamps_manager_v1 *input_timestamps_manager;
struct zxdg_exporter_v2 *zxdg_exporter_v2;
struct kde_output_order_v1 *kde_output_order;
struct xkb_context *xkb_context;

39
src/video/wayland/SDL_waylandwindow.c
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@ -38,6 +38,7 @@
#include "xdg-activation-v1-client-protocol.h"
#include "viewporter-client-protocol.h"
#include "fractional-scale-v1-client-protocol.h"
#include "xdg-foreign-unstable-v2-client-protocol.h"
#ifdef HAVE_LIBDECOR_H
#include <libdecor.h>
@ -1484,6 +1485,21 @@ static struct wl_callback_listener show_hide_sync_listener = {
show_hide_sync_handler
};
static void exported_handle_handler(void *data, struct zxdg_exported_v2 *zxdg_exported_v2, const char *handle)
{
SDL_WindowData *wind = (SDL_WindowData*)data;
SDL_PropertiesID props = SDL_GetWindowProperties(wind->sdlwindow);
SDL_free(wind->export_handle);
wind->export_handle = SDL_strdup(handle);
SDL_SetProperty(props, SDL_PROP_WINDOW_WAYLAND_XDG_TOPLEVEL_EXPORT_HANDLE_POINTER, wind->export_handle);
}
static struct zxdg_exported_v2_listener exported_v2_listener = {
exported_handle_handler
};
void Wayland_ShowWindow(SDL_VideoDevice *_this, SDL_Window *window)
{
SDL_VideoData *c = _this->driverdata;
@ -1549,6 +1565,11 @@ void Wayland_ShowWindow(SDL_VideoDevice *_this, SDL_Window *window)
libdecor_frame_set_app_id(data->shell_surface.libdecor.frame, data->app_id);
libdecor_frame_map(data->shell_surface.libdecor.frame);
if (c->zxdg_exporter_v2) {
data->exported = zxdg_exporter_v2_export_toplevel(c->zxdg_exporter_v2, data->surface);
zxdg_exported_v2_add_listener(data->exported, &exported_v2_listener, data);
}
SDL_SetProperty(props, SDL_PROP_WINDOW_WAYLAND_XDG_SURFACE_POINTER, libdecor_frame_get_xdg_surface(data->shell_surface.libdecor.frame));
SDL_SetProperty(props, SDL_PROP_WINDOW_WAYLAND_XDG_TOPLEVEL_POINTER, libdecor_frame_get_xdg_toplevel(data->shell_surface.libdecor.frame));
}
@ -1623,6 +1644,12 @@ void Wayland_ShowWindow(SDL_VideoDevice *_this, SDL_Window *window)
data->shell_surface.xdg.roleobj.toplevel = xdg_surface_get_toplevel(data->shell_surface.xdg.surface);
xdg_toplevel_set_app_id(data->shell_surface.xdg.roleobj.toplevel, data->app_id);
xdg_toplevel_add_listener(data->shell_surface.xdg.roleobj.toplevel, &toplevel_listener_xdg, data);
if (c->zxdg_exporter_v2) {
data->exported = zxdg_exporter_v2_export_toplevel(c->zxdg_exporter_v2, data->surface);
zxdg_exported_v2_add_listener(data->exported, &exported_v2_listener, data);
}
SDL_SetProperty(props, SDL_PROP_WINDOW_WAYLAND_XDG_TOPLEVEL_POINTER, data->shell_surface.xdg.roleobj.toplevel);
}
}
@ -1699,7 +1726,6 @@ void Wayland_ShowWindow(SDL_VideoDevice *_this, SDL_Window *window)
Wayland_SetWindowResizable(_this, window, !!(window->flags & SDL_WINDOW_RESIZABLE));
Wayland_SetWindowBordered(_this, window, !(window->flags & SDL_WINDOW_BORDERLESS));
/* We're finally done putting the window together, raise if possible */
if (c->activation_manager) {
/* Note that we don't check for empty strings, as that is still
@ -1798,6 +1824,17 @@ void Wayland_HideWindow(SDL_VideoDevice *_this, SDL_Window *window)
wl_surface_commit(wind->surface);
}
/* Clean up the export handle. */
if (wind->exported) {
zxdg_exported_v2_destroy(wind->exported);
wind->exported = NULL;
SDL_free(wind->export_handle);
wind->export_handle = NULL;
SDL_SetProperty(props, SDL_PROP_WINDOW_WAYLAND_XDG_TOPLEVEL_EXPORT_HANDLE_POINTER, NULL);
}
#ifdef HAVE_LIBDECOR_H
if (wind->shell_surface_type == WAYLAND_SURFACE_LIBDECOR) {
if (wind->shell_surface.libdecor.frame) {

2
src/video/wayland/SDL_waylandwindow.h
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@ -95,6 +95,7 @@ struct SDL_WindowData
struct xdg_activation_token_v1 *activation_token;
struct wp_viewport *viewport;
struct wp_fractional_scale_v1 *fractional_scale;
struct zxdg_exported_v2 *exported;
SDL_AtomicInt swap_interval_ready;
@ -104,6 +105,7 @@ struct SDL_WindowData
SDL_Window *keyboard_focus;
char *app_id;
char *export_handle;
float windowed_scale_factor;
struct

200
wayland-protocols/xdg-foreign-unstable-v2.xml Normal file
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@ -0,0 +1,200 @@
<?xml version="1.0" encoding="UTF-8"?>
<protocol name="xdg_foreign_unstable_v2">
<copyright>
Copyright © 2015-2016 Red Hat Inc.
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice (including the next
paragraph) shall be included in all copies or substantial portions of the
Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
</copyright>
<description summary="Protocol for exporting xdg surface handles">
This protocol specifies a way for making it possible to reference a surface
of a different client. With such a reference, a client can, by using the
interfaces provided by this protocol, manipulate the relationship between
its own surfaces and the surface of some other client. For example, stack
some of its own surface above the other clients surface.
In order for a client A to get a reference of a surface of client B, client
B must first export its surface using xdg_exporter.export_toplevel. Upon
doing this, client B will receive a handle (a unique string) that it may
share with client A in some way (for example D-Bus). After client A has
received the handle from client B, it may use xdg_importer.import_toplevel
to create a reference to the surface client B just exported. See the
corresponding requests for details.
A possible use case for this is out-of-process dialogs. For example when a
sandboxed client without file system access needs the user to select a file
on the file system, given sandbox environment support, it can export its
surface, passing the exported surface handle to an unsandboxed process that
can show a file browser dialog and stack it above the sandboxed client's
surface.
Warning! The protocol described in this file is experimental and backward
incompatible changes may be made. Backward compatible changes may be added
together with the corresponding interface version bump. Backward
incompatible changes are done by bumping the version number in the protocol
and interface names and resetting the interface version. Once the protocol
is to be declared stable, the 'z' prefix and the version number in the
protocol and interface names are removed and the interface version number is
reset.
</description>
<interface name="zxdg_exporter_v2" version="1">
<description summary="interface for exporting surfaces">
A global interface used for exporting surfaces that can later be imported
using xdg_importer.
</description>
<request name="destroy" type="destructor">
<description summary="destroy the xdg_exporter object">
Notify the compositor that the xdg_exporter object will no longer be
used.
</description>
</request>
<enum name="error">
<description summary="error values">
These errors can be emitted in response to invalid xdg_exporter
requests.
</description>
<entry name="invalid_surface" value="0" summary="surface is not an xdg_toplevel"/>
</enum>
<request name="export_toplevel">
<description summary="export a toplevel surface">
The export_toplevel request exports the passed surface so that it can later be
imported via xdg_importer. When called, a new xdg_exported object will
be created and xdg_exported.handle will be sent immediately. See the
corresponding interface and event for details.
A surface may be exported multiple times, and each exported handle may
be used to create an xdg_imported multiple times. Only xdg_toplevel
equivalent surfaces may be exported, otherwise an invalid_surface
protocol error is sent.
</description>
<arg name="id" type="new_id" interface="zxdg_exported_v2"
summary="the new xdg_exported object"/>
<arg name="surface" type="object" interface="wl_surface"
summary="the surface to export"/>
</request>
</interface>
<interface name="zxdg_importer_v2" version="1">
<description summary="interface for importing surfaces">
A global interface used for importing surfaces exported by xdg_exporter.
With this interface, a client can create a reference to a surface of
another client.
</description>
<request name="destroy" type="destructor">
<description summary="destroy the xdg_importer object">
Notify the compositor that the xdg_importer object will no longer be
used.
</description>
</request>
<request name="import_toplevel">
<description summary="import a toplevel surface">
The import_toplevel request imports a surface from any client given a handle
retrieved by exporting said surface using xdg_exporter.export_toplevel.
When called, a new xdg_imported object will be created. This new object
represents the imported surface, and the importing client can
manipulate its relationship using it. See xdg_imported for details.
</description>
<arg name="id" type="new_id" interface="zxdg_imported_v2"
summary="the new xdg_imported object"/>
<arg name="handle" type="string"
summary="the exported surface handle"/>
</request>
</interface>
<interface name="zxdg_exported_v2" version="1">
<description summary="an exported surface handle">
An xdg_exported object represents an exported reference to a surface. The
exported surface may be referenced as long as the xdg_exported object not
destroyed. Destroying the xdg_exported invalidates any relationship the
importer may have established using xdg_imported.
</description>
<request name="destroy" type="destructor">
<description summary="unexport the exported surface">
Revoke the previously exported surface. This invalidates any
relationship the importer may have set up using the xdg_imported created
given the handle sent via xdg_exported.handle.
</description>
</request>
<event name="handle">
<description summary="the exported surface handle">
The handle event contains the unique handle of this exported surface
reference. It may be shared with any client, which then can use it to
import the surface by calling xdg_importer.import_toplevel. A handle
may be used to import the surface multiple times.
</description>
<arg name="handle" type="string" summary="the exported surface handle"/>
</event>
</interface>
<interface name="zxdg_imported_v2" version="1">
<description summary="an imported surface handle">
An xdg_imported object represents an imported reference to surface exported
by some client. A client can use this interface to manipulate
relationships between its own surfaces and the imported surface.
</description>
<enum name="error">
<description summary="error values">
These errors can be emitted in response to invalid xdg_imported
requests.
</description>
<entry name="invalid_surface" value="0" summary="surface is not an xdg_toplevel"/>
</enum>
<request name="destroy" type="destructor">
<description summary="destroy the xdg_imported object">
Notify the compositor that it will no longer use the xdg_imported
object. Any relationship that may have been set up will at this point
be invalidated.
</description>
</request>
<request name="set_parent_of">
<description summary="set as the parent of some surface">
Set the imported surface as the parent of some surface of the client.
The passed surface must be an xdg_toplevel equivalent, otherwise an
invalid_surface protocol error is sent. Calling this function sets up
a surface to surface relation with the same stacking and positioning
semantics as xdg_toplevel.set_parent.
</description>
<arg name="surface" type="object" interface="wl_surface"
summary="the child surface"/>
</request>
<event name="destroyed">
<description summary="the imported surface handle has been destroyed">
The imported surface handle has been destroyed and any relationship set
up has been invalidated. This may happen for various reasons, for
example if the exported surface or the exported surface handle has been
destroyed, if the handle used for importing was invalid.
</description>
</event>
</interface>
</protocol>