swayfx/wayland/window.c
Drew DeVault a9767ad2f7 Allow users to customize the cursor on clients
This also sets the default size to 16 and documents all of the other
environment variables in use in sway(1).
2016-07-17 11:26:30 -04:00

172 lines
5.2 KiB
C

#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>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <errno.h>
#include <sys/mman.h>
#include "client/window.h"
#include "client/buffer.h"
#include "list.h"
#include "log.h"
static void pointer_handle_enter(void *data, struct wl_pointer *pointer,
uint32_t serial, struct wl_surface *surface, wl_fixed_t sx_w, wl_fixed_t sy_w) {
struct window *window = data;
if (window->registry->pointer) {
struct wl_cursor_image *image = window->cursor.cursor->images[0];
wl_pointer_set_cursor(pointer, serial, window->cursor.surface, image->hotspot_x, image->hotspot_y);
}
}
static void pointer_handle_leave(void *data, struct wl_pointer *pointer,
uint32_t serial, struct wl_surface *surface) {
}
static void pointer_handle_motion(void *data, struct wl_pointer *pointer,
uint32_t time, wl_fixed_t sx_w, wl_fixed_t sy_w) {
struct window *window = data;
window->pointer_input.last_x = wl_fixed_to_int(sx_w);
window->pointer_input.last_y = wl_fixed_to_int(sy_w);
}
static void pointer_handle_button(void *data, struct wl_pointer *pointer, uint32_t serial,
uint32_t time, uint32_t button, uint32_t state_w) {
struct window *window = data;
struct pointer_input *input = &window->pointer_input;
if (window->pointer_input.notify_button) {
window->pointer_input.notify_button(window, input->last_x, input->last_y, button, state_w);
}
}
static void pointer_handle_axis(void *data, struct wl_pointer *pointer,
uint32_t time, uint32_t axis, wl_fixed_t value) {
struct window *window = data;
enum scroll_direction direction;
switch (axis) {
case 0:
direction = wl_fixed_to_double(value) < 0 ? SCROLL_UP : SCROLL_DOWN;
break;
case 1:
direction = wl_fixed_to_double(value) < 0 ? SCROLL_LEFT : SCROLL_RIGHT;
break;
default:
sway_log(L_DEBUG, "Unexpected axis value on mouse scroll");
return;
}
if (window->pointer_input.notify_scroll) {
window->pointer_input.notify_scroll(window, direction);
}
}
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
};
void shell_surface_configure(void *data, struct wl_shell_surface *wl_shell_surface,
uint32_t edges, int32_t width, int32_t height) {
struct window *window = data;
window->width = width;
window->height = height;
}
static const struct wl_shell_surface_listener surface_listener = {
.configure = shell_surface_configure
};
void window_make_shell(struct window *window) {
window->shell_surface = wl_shell_get_shell_surface(window->registry->shell, window->surface);
wl_shell_surface_add_listener(window->shell_surface, &surface_listener, window);
wl_shell_surface_set_toplevel(window->shell_surface);
}
struct window *window_setup(struct registry *registry, uint32_t width, uint32_t height, bool shell_surface) {
struct window *window = malloc(sizeof(struct window));
memset(window, 0, sizeof(struct window));
window->width = width;
window->height = height;
window->registry = registry;
window->font = "monospace 10";
window->surface = wl_compositor_create_surface(registry->compositor);
if (shell_surface) {
window_make_shell(window);
}
if (registry->pointer) {
wl_pointer_add_listener(registry->pointer, &pointer_listener, window);
}
get_next_buffer(window);
if (registry->pointer) {
char *cursor_theme = getenv("SWAY_CURSOR_THEME");
if (!cursor_theme) {
cursor_theme = "default";
}
char *cursor_size = getenv("SWAY_CURSOR_SIZE");
if (!cursor_size) {
cursor_size = "16";
}
window->cursor.cursor_theme = wl_cursor_theme_load(cursor_theme,
atoi(cursor_size), registry->shm);
window->cursor.cursor = wl_cursor_theme_get_cursor(window->cursor.cursor_theme, "left_ptr");
window->cursor.surface = wl_compositor_create_surface(registry->compositor);
struct wl_cursor_image *image = window->cursor.cursor->images[0];
struct wl_buffer *cursor_buf = wl_cursor_image_get_buffer(image);
wl_surface_attach(window->cursor.surface, cursor_buf, 0, 0);
wl_surface_damage(window->cursor.surface, 0, 0, image->width, image->height);
wl_surface_commit(window->cursor.surface);
}
return window;
}
static void frame_callback(void *data, struct wl_callback *callback, uint32_t time) {
struct window *window = data;
wl_callback_destroy(callback);
window->frame_cb = NULL;
}
static const struct wl_callback_listener listener = {
frame_callback
};
int window_prerender(struct window *window) {
if (window->frame_cb) {
return 0;
}
get_next_buffer(window);
return 1;
}
int window_render(struct window *window) {
window->frame_cb = wl_surface_frame(window->surface);
wl_callback_add_listener(window->frame_cb, &listener, window);
wl_surface_damage(window->surface, 0, 0, window->buffer->width, window->buffer->height);
wl_surface_attach(window->surface, window->buffer->buffer, 0, 0);
wl_surface_commit(window->surface);
return 1;
}
void window_teardown(struct window *window) {
// TODO
}