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https://gitlab.freedesktop.org/wlroots/wlroots.git
synced 2025-10-29 05:40:12 -04:00
Implement pointer-constraints protocol in wlroots and rootston
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Las
parent
437f538772
commit
fa2e6e7d9d
23 changed files with 1134 additions and 20 deletions
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@ -70,6 +70,10 @@ examples = {
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'src': 'gamma-control.c',
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'dep': [wayland_client, wayland_cursor, wlr_protos, wlroots],
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},
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'pointer-constraints': {
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'src': 'pointer-constraints.c',
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'dep': [wayland_client, wlr_protos, wlroots],
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},
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'dmabuf-capture': {
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'src': 'dmabuf-capture.c',
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'dep': [
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254
examples/pointer-constraints.c
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254
examples/pointer-constraints.c
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@ -0,0 +1,254 @@
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#include <GLES2/gl2.h>
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#include <linux/input-event-codes.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <wayland-client.h>
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#include <wayland-egl.h>
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#include <wlr/render/egl.h>
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#include "xdg-shell-client-protocol.h"
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#include "pointer-constraints-unstable-v1-client-protocol.h"
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static int width = 512, height = 512;
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static struct wl_compositor *compositor = NULL;
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static struct wl_seat *seat = NULL;
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static struct xdg_wm_base *wm_base = NULL;
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static struct zwp_pointer_constraints_v1 *pointer_constraints = NULL;
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struct wlr_egl egl;
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struct wl_egl_window *egl_window;
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struct wlr_egl_surface *egl_surface;
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struct zwp_locked_pointer_v1* locked_pointer;
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struct zwp_confined_pointer_v1* confined_pointer;
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enum {
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REGION_TYPE_NONE,
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REGION_TYPE_DISJOINT,
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REGION_TYPE_JOINT,
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REGION_TYPE_MAX
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} region_type = REGION_TYPE_NONE;
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struct wl_region *regions[3];
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static void draw(void) {
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eglMakeCurrent(egl.display, egl_surface, egl_surface, egl.context);
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float color[] = {1.0, 1.0, 0.0, 1.0};
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glViewport(0, 0, width, height);
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glClearColor(color[0], color[1], color[2], 1.0);
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glClear(GL_COLOR_BUFFER_BIT);
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eglSwapBuffers(egl.display, egl_surface);
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}
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static void pointer_handle_button(void *data, struct wl_pointer *pointer, uint32_t serial,
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uint32_t time, uint32_t button, uint32_t state_w) {
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struct wl_surface *surface = data;
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if (button == BTN_LEFT && state_w == WL_POINTER_BUTTON_STATE_PRESSED) {
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region_type = (region_type + 1) % REGION_TYPE_MAX;
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if (locked_pointer) {
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zwp_locked_pointer_v1_set_region(locked_pointer, regions[region_type]);
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} else if (confined_pointer) {
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zwp_confined_pointer_v1_set_region(confined_pointer, regions[region_type]);
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}
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wl_surface_commit(surface);
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}
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}
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static void pointer_handle_enter(void *data, struct wl_pointer *wl_pointer,
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uint32_t serial, struct wl_surface *surface,
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wl_fixed_t surface_x, wl_fixed_t surface_y) {
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// This space intentionally left blank
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}
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static void pointer_handle_leave(void *data, struct wl_pointer *wl_pointer,
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uint32_t serial, struct wl_surface *surface) {
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// This space intentionally left blank
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}
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static void pointer_handle_motion(void *data, struct wl_pointer *wl_pointer,
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uint32_t time, wl_fixed_t surface_x, wl_fixed_t surface_y) {
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// This space intentionally left blank
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}
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static void pointer_handle_axis(void *data, struct wl_pointer *wl_pointer,
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uint32_t time, uint32_t axis, wl_fixed_t value) {
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// This space intentionally left blank
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}
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static void pointer_handle_frame(void *data, struct wl_pointer *wl_pointer) {
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// This space intentionally left blank
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}
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static void pointer_handle_axis_source(void *data,
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struct wl_pointer *wl_pointer, uint32_t axis_source) {
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// This space intentionally left blank
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}
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static void pointer_handle_axis_stop(void *data,
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struct wl_pointer *wl_pointer, uint32_t time, uint32_t axis) {
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// This space intentionally left blank
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}
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static void pointer_handle_axis_discrete(void *data,
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struct wl_pointer *wl_pointer, uint32_t axis, int32_t discrete) {
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// This space intentionally left blank
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}
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static const struct wl_pointer_listener pointer_listener = {
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.enter = pointer_handle_enter,
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.leave = pointer_handle_leave,
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.motion = pointer_handle_motion,
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.button = pointer_handle_button,
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.axis = pointer_handle_axis,
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.frame = pointer_handle_frame,
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.axis_source = pointer_handle_axis_source,
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.axis_stop = pointer_handle_axis_stop,
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.axis_discrete = pointer_handle_axis_discrete,
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};
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static void xdg_surface_handle_configure(void *data,
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struct xdg_surface *xdg_surface, uint32_t serial) {
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xdg_surface_ack_configure(xdg_surface, serial);
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wl_egl_window_resize(egl_window, width, height, 0, 0);
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draw();
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}
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static const struct xdg_surface_listener xdg_surface_listener = {
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.configure = xdg_surface_handle_configure,
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};
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static void xdg_toplevel_handle_configure(void *data,
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struct xdg_toplevel *xdg_toplevel, int32_t w, int32_t h,
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struct wl_array *states) {
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width = w;
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height = h;
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}
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static void xdg_toplevel_handle_close(void *data,
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struct xdg_toplevel *xdg_toplevel) {
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exit(EXIT_SUCCESS);
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}
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static const struct xdg_toplevel_listener xdg_toplevel_listener = {
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.configure = xdg_toplevel_handle_configure,
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.close = xdg_toplevel_handle_close,
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};
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static void handle_global(void *data, struct wl_registry *registry,
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uint32_t name, const char *interface, uint32_t version) {
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if (strcmp(interface, wl_compositor_interface.name) == 0) {
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compositor = wl_registry_bind(registry, name,
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&wl_compositor_interface, 1);
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} else if (strcmp(interface, xdg_wm_base_interface.name) == 0) {
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wm_base = wl_registry_bind(registry, name, &xdg_wm_base_interface, 1);
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} else if (strcmp(interface, wl_seat_interface.name) == 0) {
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seat = wl_registry_bind(registry, name, &wl_seat_interface, version);
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} else if (strcmp(interface, zwp_pointer_constraints_v1_interface.name) == 0) {
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pointer_constraints = wl_registry_bind(registry, name,
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&zwp_pointer_constraints_v1_interface, version);
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}
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}
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static const struct wl_registry_listener registry_listener = {
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.global = handle_global,
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.global_remove = NULL,
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};
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int main(int argc, char **argv) {
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if (argc != 4) {
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goto invalid_args;
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}
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bool lock;
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if (strcmp(argv[1], "lock") == 0) {
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lock = true;
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} else if (strcmp(argv[1], "confine") == 0) {
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lock = false;
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} else {
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goto invalid_args;
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}
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enum zwp_pointer_constraints_v1_lifetime lifetime;
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if (strcmp(argv[2], "oneshot") == 0) {
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lifetime = ZWP_POINTER_CONSTRAINTS_V1_LIFETIME_ONESHOT;
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} else if (strcmp(argv[2], "persistent") == 0) {
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lifetime = ZWP_POINTER_CONSTRAINTS_V1_LIFETIME_PERSISTENT;
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} else {
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goto invalid_args;
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}
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if (strcmp(argv[3], "no-region") == 0) {
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region_type = REGION_TYPE_NONE;
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} else if (strcmp(argv[3], "disjoint-region") == 0) {
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region_type = REGION_TYPE_DISJOINT;
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} else if (strcmp(argv[3], "joint-region") == 0) {
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region_type = REGION_TYPE_JOINT;
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}
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struct wl_display *display = wl_display_connect(NULL);
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struct wl_registry *registry = wl_display_get_registry(display);
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wl_registry_add_listener(registry, ®istry_listener, NULL);
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wl_display_dispatch(display);
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wl_display_roundtrip(display);
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struct wl_region *disjoint_region = wl_compositor_create_region(compositor);
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wl_region_add(disjoint_region, 0, 0, 255, 256);
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wl_region_add(disjoint_region, 257, 0, 255, 256);
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regions[REGION_TYPE_DISJOINT] = disjoint_region;
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struct wl_region *joint_region = wl_compositor_create_region(compositor);
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wl_region_add(joint_region, 0, 0, 256, 256);
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wl_region_add(joint_region, 256, 0, 256, 256);
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wl_region_add(joint_region, 256, 256, 256, 256);
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regions[REGION_TYPE_JOINT] = joint_region;
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wlr_egl_init(&egl, EGL_PLATFORM_WAYLAND_EXT, display, NULL,
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WL_SHM_FORMAT_ARGB8888);
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struct wl_surface *surface = wl_compositor_create_surface(compositor);
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struct xdg_surface *xdg_surface =
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xdg_wm_base_get_xdg_surface(wm_base, surface);
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struct xdg_toplevel *xdg_toplevel = xdg_surface_get_toplevel(xdg_surface);
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xdg_surface_add_listener(xdg_surface, &xdg_surface_listener, NULL);
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xdg_toplevel_add_listener(xdg_toplevel, &xdg_toplevel_listener, NULL);
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struct wl_pointer *pointer = wl_seat_get_pointer(seat);
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wl_pointer_add_listener(pointer, &pointer_listener, surface);
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if (lock) {
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locked_pointer = zwp_pointer_constraints_v1_lock_pointer(
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pointer_constraints, surface, pointer, regions[region_type], lifetime);
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zwp_locked_pointer_v1_set_cursor_position_hint(locked_pointer, wl_fixed_from_int(128), wl_fixed_from_int(128));
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} else {
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confined_pointer = zwp_pointer_constraints_v1_confine_pointer(
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pointer_constraints, surface, pointer, regions[region_type], lifetime);
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}
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wl_surface_commit(surface);
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egl_window = wl_egl_window_create(surface, width, height);
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egl_surface = wlr_egl_create_surface(&egl, egl_window);
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wl_display_roundtrip(display);
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draw();
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while (wl_display_dispatch(display) != -1) {}
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return EXIT_SUCCESS;
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invalid_args: {
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fprintf(stderr, "pointer-constraints <lock | confine> <oneshot | persistent> "
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"<no-region | disjoint-rejoin | joint-region>\n");
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exit(EXIT_FAILURE);
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}
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}
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