diff options
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/meson.build | 6 | ||||
| -rw-r--r-- | examples/toplevel-decoration.c | 253 |
2 files changed, 259 insertions, 0 deletions
diff --git a/examples/meson.build b/examples/meson.build index 18f44fde..26d20850 100644 --- a/examples/meson.build +++ b/examples/meson.build @@ -66,3 +66,9 @@ if libpng.found() dependencies: [wayland_client, wlr_protos, wlroots, libpng] ) endif + +executable( + 'toplevel-decoration', + 'toplevel-decoration.c', + dependencies: [wayland_client, wlr_protos, wlroots] +) diff --git a/examples/toplevel-decoration.c b/examples/toplevel-decoration.c new file mode 100644 index 00000000..e930c417 --- /dev/null +++ b/examples/toplevel-decoration.c @@ -0,0 +1,253 @@ +#include <GLES2/gl2.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <wayland-client.h> +#include <wayland-egl.h> +#include <wlr/render/egl.h> +#include "xdg-shell-client-protocol.h" +#include "xdg-decoration-unstable-v1-client-protocol.h" + +/** + * Usage: toplevel-decoration [mode] + * Creates an xdg-toplevel supporting decoration negotiation. If `mode` is + * specified, the client will prefer this decoration mode. + */ + +static int width = 500, height = 300; + +static struct wl_compositor *compositor = NULL; +static struct xdg_wm_base *wm_base = NULL; +static struct zxdg_decoration_manager_v1 *decoration_manager = NULL; + +struct wlr_egl egl; +struct wl_egl_window *egl_window; +struct wlr_egl_surface *egl_surface; + +struct zxdg_toplevel_decoration_v1 *decoration; +enum zxdg_toplevel_decoration_v1_mode client_preferred_mode, current_mode; + +static const char *get_mode_name(enum zxdg_toplevel_decoration_v1_mode mode) { + switch (mode) { + case ZXDG_TOPLEVEL_DECORATION_V1_MODE_CLIENT_SIDE: + return "client-side decorations"; + case ZXDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE: + return "server-side decorations"; + } + abort(); +} + +static void request_preferred_mode(void) { + enum zxdg_toplevel_decoration_v1_mode mode = client_preferred_mode; + if (mode == 0) { + printf("Requesting compositor preferred mode\n"); + zxdg_toplevel_decoration_v1_unset_mode(decoration); + return; + } + if (mode == current_mode) { + return; + } + + printf("Requesting %s\n", get_mode_name(mode)); + zxdg_toplevel_decoration_v1_set_mode(decoration, mode); +} + +static void draw(void) { + eglMakeCurrent(egl.display, egl_surface, egl_surface, egl.context); + + float color[] = {1.0, 1.0, 0.0, 1.0}; + if (current_mode == ZXDG_TOPLEVEL_DECORATION_V1_MODE_CLIENT_SIDE) { + color[0] = 0.0; + } + + glViewport(0, 0, width, height); + glClearColor(color[0], color[1], color[2], 1.0); + glClear(GL_COLOR_BUFFER_BIT); + + eglSwapBuffers(egl.display, egl_surface); +} + +static void xdg_surface_handle_configure(void *data, + struct xdg_surface *xdg_surface, uint32_t serial) { + xdg_surface_ack_configure(xdg_surface, serial); + wl_egl_window_resize(egl_window, width, height, 0, 0); + draw(); +} + +static const struct xdg_surface_listener xdg_surface_listener = { + .configure = xdg_surface_handle_configure, +}; + +static void xdg_toplevel_handle_configure(void *data, + struct xdg_toplevel *xdg_toplevel, int32_t w, int32_t h, + struct wl_array *states) { + width = w; + height = h; +} + +static const struct xdg_toplevel_listener xdg_toplevel_listener = { + .configure = xdg_toplevel_handle_configure, +}; + +static void decoration_handle_configure(void *data, + struct zxdg_toplevel_decoration_v1 *decoration, + enum zxdg_toplevel_decoration_v1_mode mode) { + printf("Using %s\n", get_mode_name(mode)); + current_mode = mode; +} + +static const struct zxdg_toplevel_decoration_v1_listener decoration_listener = { + .configure = decoration_handle_configure, +}; + +static void pointer_handle_enter(void *data, struct wl_pointer *pointer, + uint32_t serial, struct wl_surface *surface, + wl_fixed_t sx, wl_fixed_t sy) { + // No-op +} + +static void pointer_handle_leave(void *data, struct wl_pointer *pointer, + uint32_t serial, struct wl_surface *surface) { + // No-op +} + +static void pointer_handle_motion(void *data, struct wl_pointer *pointer, + uint32_t time, wl_fixed_t sx, wl_fixed_t sy) { + // No-op +} + +static void pointer_handle_button(void *data, struct wl_pointer *wl_pointer, + uint32_t serial, uint32_t time, uint32_t button, + enum wl_pointer_button_state state) { + if (state == WL_POINTER_BUTTON_STATE_PRESSED) { + // Toggle mode + if (client_preferred_mode == ZXDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE) { + client_preferred_mode = ZXDG_TOPLEVEL_DECORATION_V1_MODE_CLIENT_SIDE; + } else { + client_preferred_mode = ZXDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE; + } + request_preferred_mode(); + } +} + +static void pointer_handle_axis(void *data, struct wl_pointer *wl_pointer, + uint32_t time, enum wl_pointer_axis axis, wl_fixed_t value) { + // No-op +} + +static const struct wl_pointer_listener pointer_listener = { + .enter = pointer_handle_enter, + .leave = pointer_handle_leave, + .motion = pointer_handle_motion, + .button = pointer_handle_button, + .axis = pointer_handle_axis, +}; + +static void seat_handle_capabilities(void *data, struct wl_seat *seat, + enum wl_seat_capability caps) { + if (caps & WL_SEAT_CAPABILITY_POINTER) { + struct wl_pointer *pointer = wl_seat_get_pointer(seat); + wl_pointer_add_listener(pointer, &pointer_listener, NULL); + } +} + +static const struct wl_seat_listener seat_listener = { + .capabilities = seat_handle_capabilities, +}; + +static void handle_global(void *data, struct wl_registry *registry, + uint32_t name, const char *interface, uint32_t version) { + if (strcmp(interface, wl_compositor_interface.name) == 0) { + compositor = wl_registry_bind(registry, name, &wl_compositor_interface, + 1); + } else if (strcmp(interface, xdg_wm_base_interface.name) == 0) { + wm_base = wl_registry_bind(registry, name, &xdg_wm_base_interface, 1); + } else if (strcmp(interface, zxdg_decoration_manager_v1_interface.name) == 0) { + decoration_manager = wl_registry_bind(registry, name, + &zxdg_decoration_manager_v1_interface, 1); + } else if (strcmp(interface, wl_seat_interface.name) == 0) { + struct wl_seat *seat = + wl_registry_bind(registry, name, &wl_seat_interface, 1); + wl_seat_add_listener(seat, &seat_listener, NULL); + } +} + +static void handle_global_remove(void *data, struct wl_registry *registry, + uint32_t name) { + // Who cares? +} + +static const struct wl_registry_listener registry_listener = { + .global = handle_global, + .global_remove = handle_global_remove, +}; + +int main(int argc, char **argv) { + if (argc == 2) { + char *mode = argv[1]; + if (strcmp(mode, "client") == 0) { + client_preferred_mode = ZXDG_TOPLEVEL_DECORATION_V1_MODE_CLIENT_SIDE; + } else if (strcmp(mode, "server") == 0) { + client_preferred_mode = ZXDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE; + } else { + fprintf(stderr, "Invalid decoration mode\n"); + return EXIT_FAILURE; + } + } + + struct wl_display *display = wl_display_connect(NULL); + if (display == NULL) { + fprintf(stderr, "Failed to create display\n"); + return EXIT_FAILURE; + } + + struct wl_registry *registry = wl_display_get_registry(display); + wl_registry_add_listener(registry, ®istry_listener, NULL); + wl_display_dispatch(display); + wl_display_roundtrip(display); + + if (compositor == NULL) { + fprintf(stderr, "wl-compositor not available\n"); + return EXIT_FAILURE; + } + if (wm_base == NULL) { + fprintf(stderr, "xdg-shell not available\n"); + return EXIT_FAILURE; + } + if (decoration_manager == NULL) { + fprintf(stderr, "xdg-decoration not available\n"); + return EXIT_FAILURE; + } + + wlr_egl_init(&egl, EGL_PLATFORM_WAYLAND_EXT, display, NULL, + WL_SHM_FORMAT_ARGB8888); + + struct wl_surface *surface = wl_compositor_create_surface(compositor); + struct xdg_surface *xdg_surface = + xdg_wm_base_get_xdg_surface(wm_base, surface); + struct xdg_toplevel *xdg_toplevel = xdg_surface_get_toplevel(xdg_surface); + decoration = zxdg_decoration_manager_v1_get_toplevel_decoration( + decoration_manager, xdg_toplevel); + + wl_display_roundtrip(display); + request_preferred_mode(); + + xdg_surface_add_listener(xdg_surface, &xdg_surface_listener, NULL); + xdg_toplevel_add_listener(xdg_toplevel, &xdg_toplevel_listener, NULL); + zxdg_toplevel_decoration_v1_add_listener(decoration, &decoration_listener, + NULL); + wl_surface_commit(surface); + + egl_window = wl_egl_window_create(surface, width, height); + egl_surface = wlr_egl_create_surface(&egl, egl_window); + + wl_display_roundtrip(display); + + draw(); + + while (wl_display_dispatch(display) != -1) { + // This space is intentionally left blank + } + + return EXIT_SUCCESS; +} |