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-rw-r--r--examples/layer-shell.c150
-rw-r--r--examples/meson.build3
2 files changed, 143 insertions, 10 deletions
diff --git a/examples/layer-shell.c b/examples/layer-shell.c
index 70407888..89fa9ea9 100644
--- a/examples/layer-shell.c
+++ b/examples/layer-shell.c
@@ -7,12 +7,17 @@
#include <time.h>
#include <unistd.h>
#include <wayland-client.h>
+#include <wayland-cursor.h>
#include <wayland-egl.h>
#include <wlr/render/egl.h>
#include <wlr/util/log.h>
#include "wlr-layer-shell-unstable-v1-client-protocol.h"
static struct wl_compositor *compositor = NULL;
+static struct wl_seat *seat = NULL;
+static struct wl_shm *shm = NULL;
+static struct wl_pointer *pointer = NULL;
+//static struct wl_keyboard *keyboard = NULL;
static struct zwlr_layer_shell_v1 *layer_shell = NULL;
struct zwlr_layer_surface_v1 *layer_surface;
static struct wl_output *wl_output = NULL;
@@ -32,6 +37,12 @@ static double alpha = 1.0;
static bool run_display = true;
static bool animate = false;
static double frame = 0;
+static int cur_x = -1, cur_y = -1;
+static int buttons = 0;
+
+struct wl_cursor_theme *cursor_theme;
+struct wl_cursor_image *cursor_image;
+struct wl_surface *cursor_surface;
static struct {
struct timespec last_frame;
@@ -62,13 +73,15 @@ static void draw(void) {
(ts.tv_nsec - demo.last_frame.tv_nsec) / 1000000;
int inc = (demo.dec + 1) % 3;
- demo.color[inc] += ms / 2000.0f;
- demo.color[demo.dec] -= ms / 2000.0f;
+ if (!buttons) {
+ demo.color[inc] += ms / 2000.0f;
+ demo.color[demo.dec] -= ms / 2000.0f;
- if (demo.color[demo.dec] < 0.0f) {
- demo.color[inc] = 1.0f;
- demo.color[demo.dec] = 0.0f;
- demo.dec = inc;
+ if (demo.color[demo.dec] < 0.0f) {
+ demo.color[inc] = 1.0f;
+ demo.color[demo.dec] = 0.0f;
+ demo.dec = inc;
+ }
}
if (animate) {
@@ -83,9 +96,21 @@ static void draw(void) {
}
glViewport(0, 0, width, height);
- glClearColor(demo.color[0], demo.color[1], demo.color[2], alpha);
+ if (buttons) {
+ glClearColor(1, 1, 1, alpha);
+ } else {
+ glClearColor(demo.color[0], demo.color[1], demo.color[2], alpha);
+ }
glClear(GL_COLOR_BUFFER_BIT);
+ if (cur_x != -1 && cur_y != -1) {
+ glEnable(GL_SCISSOR_TEST);
+ glScissor(cur_x, height - cur_y, 5, 5);
+ glClearColor(0, 0, 0, 1);
+ glClear(GL_COLOR_BUFFER_BIT);
+ glDisable(GL_SCISSOR_TEST);
+ }
+
frame_callback = wl_surface_frame(wl_surface);
wl_callback_add_listener(frame_callback, &frame_listener, NULL);
@@ -119,11 +144,102 @@ struct zwlr_layer_surface_v1_listener layer_surface_listener = {
.closed = layer_surface_closed,
};
+static void wl_pointer_enter(void *data, struct wl_pointer *wl_pointer,
+ uint32_t serial, struct wl_surface *surface,
+ wl_fixed_t surface_x, wl_fixed_t surface_y) {
+ wl_surface_attach(cursor_surface,
+ wl_cursor_image_get_buffer(cursor_image), 0, 0);
+ wl_pointer_set_cursor(wl_pointer, serial, cursor_surface,
+ cursor_image->hotspot_x, cursor_image->hotspot_y);
+ wl_surface_commit(cursor_surface);
+}
+
+static void wl_pointer_leave(void *data, struct wl_pointer *wl_pointer,
+ uint32_t serial, struct wl_surface *surface) {
+ cur_x = cur_y = -1;
+ buttons = 0;
+}
+
+static void wl_pointer_motion(void *data, struct wl_pointer *wl_pointer,
+ uint32_t time, wl_fixed_t surface_x, wl_fixed_t surface_y) {
+ cur_x = wl_fixed_to_int(surface_x);
+ cur_y = wl_fixed_to_int(surface_y);
+}
+
+static void wl_pointer_button(void *data, struct wl_pointer *wl_pointer,
+ uint32_t serial, uint32_t time, uint32_t button, uint32_t state) {
+ if (state == WL_POINTER_BUTTON_STATE_PRESSED) {
+ buttons++;
+ } else {
+ buttons--;
+ }
+}
+
+static void wl_pointer_axis(void *data, struct wl_pointer *wl_pointer,
+ uint32_t time, uint32_t axis, wl_fixed_t value) {
+ // Who cares
+}
+
+static void wl_pointer_frame(void *data, struct wl_pointer *wl_pointer) {
+ // Who cares
+}
+
+static void wl_pointer_axis_source(void *data, struct wl_pointer *wl_pointer,
+ uint32_t axis_source) {
+ // Who cares
+}
+
+static void wl_pointer_axis_stop(void *data, struct wl_pointer *wl_pointer,
+ uint32_t time, uint32_t axis) {
+ // Who cares
+}
+
+static void wl_pointer_axis_discrete(void *data, struct wl_pointer *wl_pointer,
+ uint32_t axis, int32_t discrete) {
+ // Who cares
+}
+
+struct wl_pointer_listener pointer_listener = {
+ .enter = wl_pointer_enter,
+ .leave = wl_pointer_leave,
+ .motion = wl_pointer_motion,
+ .button = wl_pointer_button,
+ .axis = wl_pointer_axis,
+ .frame = wl_pointer_frame,
+ .axis_source = wl_pointer_axis_source,
+ .axis_stop = wl_pointer_axis_stop,
+ .axis_discrete = wl_pointer_axis_discrete,
+};
+
+static void seat_handle_capabilities(void *data, struct wl_seat *wl_seat,
+ enum wl_seat_capability caps) {
+ if ((caps & WL_SEAT_CAPABILITY_POINTER)) {
+ pointer = wl_seat_get_pointer(wl_seat);
+ wl_pointer_add_listener(pointer, &pointer_listener, NULL);
+ }
+ if ((caps & WL_SEAT_CAPABILITY_KEYBOARD)) {
+ // TODO
+ }
+}
+
+static void seat_handle_name(void *data, struct wl_seat *wl_seat,
+ const char *name) {
+ // Who cares
+}
+
+const struct wl_seat_listener seat_listener = {
+ .capabilities = seat_handle_capabilities,
+ .name = seat_handle_name,
+};
+
static void handle_global(void *data, struct wl_registry *registry,
uint32_t name, const char *interface, uint32_t version) {
if (strcmp(interface, "wl_compositor") == 0) {
compositor = wl_registry_bind(registry, name,
&wl_compositor_interface, 1);
+ } else if (strcmp(interface, wl_shm_interface.name) == 0) {
+ shm = wl_registry_bind(registry, name,
+ &wl_shm_interface, 1);
} else if (strcmp(interface, "wl_output") == 0) {
if (output == 0 && !wl_output) {
wl_output = wl_registry_bind(registry, name,
@@ -131,6 +247,10 @@ static void handle_global(void *data, struct wl_registry *registry,
} else {
output--;
}
+ } else if (strcmp(interface, wl_seat_interface.name) == 0) {
+ seat = wl_registry_bind(registry, name,
+ &wl_seat_interface, 1);
+ wl_seat_add_listener(seat, &seat_listener, NULL);
} else if (strcmp(interface, zwlr_layer_shell_v1_interface.name) == 0) {
layer_shell = wl_registry_bind(
registry, name, &zwlr_layer_shell_v1_interface, 1);
@@ -250,11 +370,15 @@ int main(int argc, char **argv) {
wl_display_roundtrip(display);
if (compositor == NULL) {
- fprintf(stderr, "wl-compositor not available\n");
+ fprintf(stderr, "wl_compositor not available\n");
+ return 1;
+ }
+ if (shm == NULL) {
+ fprintf(stderr, "wl_shm not available\n");
return 1;
}
if (layer_shell == NULL) {
- fprintf(stderr, "layer-shell not available\n");
+ fprintf(stderr, "layer_shell not available\n");
return 1;
}
if (wl_output == NULL) {
@@ -262,6 +386,12 @@ int main(int argc, char **argv) {
return 1;
}
+ assert(cursor_theme = wl_cursor_theme_load(NULL, 16, shm));
+ struct wl_cursor *cursor;
+ assert(cursor = wl_cursor_theme_get_cursor(cursor_theme, "left_ptr"));
+ cursor_image = cursor->images[0];
+ assert(cursor_surface = wl_compositor_create_surface(compositor));
+
EGLint attribs[] = { EGL_ALPHA_SIZE, 8, EGL_NONE };
wlr_egl_init(&egl, EGL_PLATFORM_WAYLAND_EXT, display,
attribs, WL_SHM_FORMAT_ARGB8888);
@@ -294,5 +424,7 @@ int main(int argc, char **argv) {
while (wl_display_dispatch(display) != -1 && run_display) {
// This space intentionally left blank
}
+
+ wl_cursor_theme_destroy(cursor_theme);
return 0;
}
diff --git a/examples/meson.build b/examples/meson.build
index 558af4ac..9e60c37a 100644
--- a/examples/meson.build
+++ b/examples/meson.build
@@ -6,6 +6,7 @@ lib_shared = static_library(
)
threads = dependency('threads')
+wayland_cursor = dependency('wayland-cursor')
executable('simple', 'simple.c', dependencies: wlroots, link_with: lib_shared)
executable('pointer', 'pointer.c', dependencies: wlroots, link_with: lib_shared)
@@ -52,5 +53,5 @@ executable(
executable(
'layer-shell',
'layer-shell.c',
- dependencies: [wayland_client, wlr_protos, wlroots]
+ dependencies: [wayland_cursor, wayland_client, wlr_protos, wlroots]
)