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Code Issues

Basic support for extensions in server and clients

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This commit is contained in:
Drew DeVault 2015-11-18 22:01:22 -05:00
parent fb0bfa13ce
commit 82db2a57a9
9 changed files with 208 additions and 7 deletions
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10
CMakeLists.txt
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@ -5,7 +5,8 @@ project(sway C)
set(CMAKE_C_FLAGS "-g")
set(CMAKE_C_STANDARD 99)
SET(CMAKE_C_EXTENSIONS OFF)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/bin")
set(CMAKE_CURRENT_BINARY_DIR "${CMAKE_CURRENT_BINARY_DIR}/bin")
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
add_definitions("-Wall -Wextra -Wno-unused-parameter -D_GNU_SOURCE")
list(INSERT CMAKE_MODULE_PATH 0
"${CMAKE_CURRENT_SOURCE_DIR}/CMake")
@ -38,21 +39,27 @@ find_package(XKBCommon REQUIRED)
find_package(WLC REQUIRED)
find_package(A2X REQUIRED)
find_package(PCRE REQUIRED)
find_package(Wayland REQUIRED)
find_package(JsonC REQUIRED)
FILE(GLOB sources ${PROJECT_SOURCE_DIR}/sway/*.c)
FILE(GLOB common ${PROJECT_SOURCE_DIR}/common/*.c)
include(Wayland)
WAYLAND_ADD_PROTOCOL_SERVER(proto-desktop-shell "${PROJECT_SOURCE_DIR}/protocols/desktop-shell.xml" desktop-shell)
include_directories(
${WLC_INCLUDE_DIRS}
${PCRE_INCLUDE_DIRS}
${JSONC_INCLUDE_DIRS}
${XKBCOMMON_INCLUDE_DIRS}
${CMAKE_CURRENT_BINARY_DIR}
)
add_executable(sway
${sources}
${common}
${proto-desktop-shell}
)
target_link_libraries(sway
@ -60,6 +67,7 @@ target_link_libraries(sway
${XKBCOMMON_LIBRARIES}
${PCRE_LIBRARIES}
${JSONC_LIBRARIES}
${WAYLAND_SERVER_LIBRARIES}
)
install(

4
include/client/client.h
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@ -2,6 +2,7 @@
#define _CLIENT_H
#include <wayland-client.h>
#include "wayland-desktop-shell-client-protocol.h"
#include <cairo/cairo.h>
#include <pango/pangocairo.h>
#include <stdbool.h>
@ -41,13 +42,14 @@ struct client_state {
struct wl_surface *surface;
struct wl_shell_surface *shell_surface;
struct wl_callback *frame_cb;
struct desktop_shell *desktop_shell;
struct cursor cursor;
uint32_t width, height;
cairo_t *cairo;
list_t *outputs;
};
struct client_state *client_setup(uint32_t width, uint32_t height);
struct client_state *client_setup(uint32_t width, uint32_t height, bool shell_surface);
void client_teardown(struct client_state *state);
int client_prerender(struct client_state *state);
int client_render(struct client_state *state);

6
include/extensions.h Normal file
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@ -0,0 +1,6 @@
#ifndef _SWAY_EXTENSIONS_H
#define _SWAY_EXTENSIONS_H
void register_extensions(void);
#endif

138
protocols/desktop-shell.xml Normal file
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@ -0,0 +1,138 @@
<protocol name="desktop">
<interface name="desktop_shell" version="3">
<description summary="create desktop widgets and helpers">
Traditional user interfaces can rely on this interface to define the
foundations of typical desktops. Currently it's possible to set up
background, panels and locking surfaces.
</description>
<request name="set_background">
<arg name="output" type="object" interface="wl_output"/>
<arg name="surface" type="object" interface="wl_surface"/>
</request>
<request name="set_panel">
<arg name="output" type="object" interface="wl_output"/>
<arg name="surface" type="object" interface="wl_surface"/>
</request>
<request name="set_lock_surface">
<arg name="surface" type="object" interface="wl_surface"/>
</request>
<request name="unlock"/>
<request name="set_grab_surface">
<description summary="set grab surface">
The surface set by this request will receive a fake
pointer.enter event during grabs at position 0, 0 and is
expected to set an appropriate cursor image as described by
the grab_cursor event sent just before the enter event.
</description>
<arg name="surface" type="object" interface="wl_surface"/>
</request>
<!-- We'll fold most of wl_shell into this interface and then
they'll share the configure event. -->
<event name="configure">
<arg name="edges" type="uint"/>
<arg name="surface" type="object" interface="wl_surface"/>
<arg name="width" type="int"/>
<arg name="height" type="int"/>
</event>
<event name="prepare_lock_surface">
<description summary="tell the client to create, set the lock surface">
Tell the client we want it to create and set the lock surface, which is
a GUI asking the user to unlock the screen. The lock surface is
announced with 'set_lock_surface'. Whether or not the client actually
implements locking, it MUST send 'unlock' request to let the normal
desktop resume.
</description>
</event>
<event name="grab_cursor">
<description summary="tell client what cursor to show during a grab">
This event will be sent immediately before a fake enter event on the
grab surface.
</description>
<arg name="cursor" type="uint"/>
</event>
<enum name="cursor">
<entry name="none" value="0"/>
<entry name="resize_top" value="1"/>
<entry name="resize_bottom" value="2"/>
<entry name="arrow" value="3"/>
<entry name="resize_left" value="4"/>
<entry name="resize_top_left" value="5"/>
<entry name="resize_bottom_left" value="6"/>
<entry name="move" value="7"/>
<entry name="resize_right" value="8"/>
<entry name="resize_top_right" value="9"/>
<entry name="resize_bottom_right" value="10"/>
<entry name="busy" value="11"/>
</enum>
<!-- Version 2 additions -->
<request name="desktop_ready" since="2">
<description summary="desktop is ready to be shown">
Tell the server, that enough desktop elements have been drawn
to make the desktop look ready for use. During start-up, the
server can wait for this request with a black screen before
starting to fade in the desktop, for instance. If the client
parts of a desktop take a long time to initialize, we avoid
showing temporary garbage.
</description>
</request>
<!-- Version 3 additions -->
<enum name="panel_position">
<entry name="top" value="0"/>
<entry name="bottom" value="1"/>
<entry name="left" value="2"/>
<entry name="right" value="3"/>
</enum>
<enum name="error">
<entry name="invalid_argument" value="0"
summary="an invalid argument was provided in a request"/>
</enum>
<request name="set_panel_position" since="3">
<arg name="position" type="uint"/>
<description summary="set panel position">
Tell the shell which side of the screen the panel is
located. This is so that new windows do not overlap the panel
and maximized windows maximize properly.
</description>
</request>
</interface>
<interface name="screensaver" version="1">
<description summary="interface for implementing screensavers">
Only one client can bind this interface at a time.
</description>
<request name="set_surface">
<description summary="set the surface type as a screensaver">
A screensaver surface is normally hidden, and only visible after an
idle timeout.
</description>
<arg name="surface" type="object" interface="wl_surface"/>
<arg name="output" type="object" interface="wl_output"/>
</request>
</interface>
</protocol>

32
sway/extensions.c Normal file
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@ -0,0 +1,32 @@
#include <wlc/wlc.h>
#include <wlc/wlc-wayland.h>
#include "wayland-desktop-shell-server-protocol.h"
#include "log.h"
static void set_background(struct wl_client *client, struct wl_resource *resource,
struct wl_resource *output, struct wl_resource *surface) {
sway_log(L_DEBUG, "Surface requesting background for output");
}
static struct desktop_shell_interface desktop_shell_implementation = {
.set_background = set_background,
};
static void desktop_shell_bind(struct wl_client *client, void *data,
unsigned int version, unsigned int id) {
if (version > 1) {
// Unsupported version
return;
}
struct wl_resource *resource = wl_resource_create(client, &desktop_shell_interface, version, id);
if (!resource) {
wl_client_post_no_memory(client);
}
wl_resource_set_implementation(resource, &desktop_shell_implementation, NULL, NULL);
}
void register_extensions(void) {
wl_global_create(wlc_get_wl_display(), &desktop_shell_interface, 1, NULL, desktop_shell_bind);
}

3
sway/main.c
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@ -7,6 +7,7 @@
#include <sys/un.h>
#include <signal.h>
#include <getopt.h>
#include "extensions.h"
#include "layout.h"
#include "stringop.h"
#include "config.h"
@ -73,6 +74,8 @@ int main(int argc, char **argv) {
if (!wlc_init(&interface, argc, argv)) {
return 1;
}
register_extensions();
char *config_path = NULL;

2
swaybg/CMakeLists.txt
View File

@ -7,6 +7,7 @@ find_package(Pango REQUIRED)
include(Wayland)
set(CMAKE_CURRENT_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/../bin/)
WAYLAND_ADD_PROTOCOL_CLIENT(proto-xdg-shell "${PROJECT_SOURCE_DIR}/../protocols/xdg-shell.xml" xdg-shell)
WAYLAND_ADD_PROTOCOL_CLIENT(proto-desktop-shell "${PROJECT_SOURCE_DIR}/../protocols/desktop-shell.xml" desktop-shell)
include_directories(
${WAYLAND_CLIENT_INCLUDE_DIR}
@ -24,6 +25,7 @@ add_executable(swaybg
${wl_sources}
${common}
${proto-xdg-shell}
${proto-desktop-shell}
)
TARGET_LINK_LIBRARIES(swaybg ${WAYLAND_CLIENT_LIBRARIES} ${WAYLAND_CURSOR_LIBRARIES} ${CAIRO_LIBRARIES} ${PANGO_LIBRARIES} m)

7
swaybg/main.c
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@ -1,3 +1,4 @@
#include "wayland-desktop-shell-client-protocol.h"
#include <stdio.h>
#include <stdlib.h>
#include <wayland-client.h>
@ -14,12 +15,16 @@ void sway_terminate(void) {
int main(int argc, char **argv) {
init_log(L_INFO);
if (!(state = client_setup(100, 100))) {
if (!(state = client_setup(100, 100, false))) {
return -1;
}
if (!state->desktop_shell) {
sway_abort("swaybg requires the compositor to support the desktop-shell extension.");
}
struct output_state *output = state->outputs->items[0];
state->width = output->width;
state->height = output->height;
desktop_shell_set_background(state->desktop_shell, output->output, state->surface);
uint8_t r = 0, g = 0, b = 0;

13
wayland/client.c
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@ -1,6 +1,7 @@
#include <wayland-client.h>
#include <wayland-cursor.h>
#include "wayland-xdg-shell-client-protocol.h"
#include "wayland-desktop-shell-client-protocol.h"
#include <cairo/cairo.h>
#include <pango/pangocairo.h>
#include <stdlib.h>
@ -96,6 +97,8 @@ static void registry_global(void *data, struct wl_registry *registry,
ostate->output = output;
wl_output_add_listener(output, &output_listener, ostate);
list_add(state->outputs, ostate);
} else if (strcmp(interface, desktop_shell_interface.name) == 0) {
state->desktop_shell = wl_registry_bind(registry, name, &desktop_shell_interface, version);
}
}
@ -119,7 +122,7 @@ static const struct wl_shell_surface_listener surface_listener = {
.configure = shell_surface_configure
};
struct client_state *client_setup(uint32_t width, uint32_t height) {
struct client_state *client_setup(uint32_t width, uint32_t height, bool shell_surface) {
struct client_state *state = malloc(sizeof(struct client_state));
memset(state, 0, sizeof(struct client_state));
state->outputs = create_list();
@ -140,9 +143,11 @@ struct client_state *client_setup(uint32_t width, uint32_t height) {
wl_registry_destroy(registry);
state->surface = wl_compositor_create_surface(state->compositor);
state->shell_surface = wl_shell_get_shell_surface(state->shell, state->surface);
wl_shell_surface_add_listener(state->shell_surface, &surface_listener, state);
wl_shell_surface_set_toplevel(state->shell_surface);
if (shell_surface) {
state->shell_surface = wl_shell_get_shell_surface(state->shell, state->surface);
wl_shell_surface_add_listener(state->shell_surface, &surface_listener, state);
wl_shell_surface_set_toplevel(state->shell_surface);
}
state->cursor.cursor_theme = wl_cursor_theme_load("default", 32, state->shm); // TODO: let you customize this
state->cursor.cursor = wl_cursor_theme_get_cursor(state->cursor.cursor_theme, "left_ptr");