Merge pull request #731 from swaywm/layer-surfaces
Implement wlr-layer-shell protocol & renderingmaster
Tony Crisci
7 years ago
committed by
GitHub
commit
48e8202883
@ -0,0 +1,298 @@
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#define _POSIX_C_SOURCE 199309L
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#include <assert.h>
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#include <GLES2/gl2.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 <time.h>
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#include <unistd.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 <wlr/util/log.h>
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#include "wlr-layer-shell-unstable-v1-client-protocol.h"
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static struct wl_compositor *compositor = NULL;
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static struct zwlr_layer_shell_v1 *layer_shell = NULL;
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struct zwlr_layer_surface_v1 *layer_surface;
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static struct wl_output *wl_output = NULL;
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struct wl_surface *wl_surface;
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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 wl_callback *frame_callback;
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static uint32_t output = 0;
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static uint32_t layer = ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND;
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static uint32_t anchor = 0;
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static uint32_t width = 256, height = 256;
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static int32_t margin_top = 0;
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static double alpha = 1.0;
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static bool run_display = true;
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static bool animate = false;
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static double frame = 0;
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static struct {
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struct timespec last_frame;
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float color[3];
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int dec;
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} demo;
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static void draw(void);
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static void surface_frame_callback(
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void *data, struct wl_callback *cb, uint32_t time) {
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wl_callback_destroy(cb);
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frame_callback = NULL;
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draw();
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}
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static struct wl_callback_listener frame_listener = {
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.done = surface_frame_callback
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};
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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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struct timespec ts;
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clock_gettime(CLOCK_MONOTONIC, &ts);
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long ms = (ts.tv_sec - demo.last_frame.tv_sec) * 1000 +
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(ts.tv_nsec - demo.last_frame.tv_nsec) / 1000000;
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int inc = (demo.dec + 1) % 3;
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demo.color[inc] += ms / 2000.0f;
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demo.color[demo.dec] -= ms / 2000.0f;
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if (demo.color[demo.dec] < 0.0f) {
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demo.color[inc] = 1.0f;
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demo.color[demo.dec] = 0.0f;
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demo.dec = inc;
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}
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if (animate) {
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frame += ms / 50.0;
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int32_t old_top = margin_top;
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margin_top = -(20 - ((int)frame % 20));
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if (old_top != margin_top) {
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zwlr_layer_surface_v1_set_margin(layer_surface,
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margin_top, 0, 0, 0);
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wl_surface_commit(wl_surface);
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}
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}
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glViewport(0, 0, width, height);
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glClearColor(demo.color[0], demo.color[1], demo.color[2], alpha);
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glClear(GL_COLOR_BUFFER_BIT);
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frame_callback = wl_surface_frame(wl_surface);
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wl_callback_add_listener(frame_callback, &frame_listener, NULL);
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eglSwapBuffers(egl.display, egl_surface);
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demo.last_frame = ts;
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}
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static void layer_surface_configure(void *data,
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struct zwlr_layer_surface_v1 *surface,
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uint32_t serial, uint32_t w, uint32_t h) {
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width = w;
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height = h;
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if (egl_window) {
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wl_egl_window_resize(egl_window, width, height, 0, 0);
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}
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zwlr_layer_surface_v1_ack_configure(surface, serial);
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}
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static void layer_surface_closed(void *data,
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struct zwlr_layer_surface_v1 *surface) {
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eglDestroySurface(egl.display, egl_surface);
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wl_egl_window_destroy(egl_window);
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zwlr_layer_surface_v1_destroy(surface);
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wl_surface_destroy(wl_surface);
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run_display = false;
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}
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struct zwlr_layer_surface_v1_listener layer_surface_listener = {
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.configure = layer_surface_configure,
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.closed = layer_surface_closed,
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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") == 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, "wl_output") == 0) {
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if (output == 0 && !wl_output) {
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wl_output = wl_registry_bind(registry, name,
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&wl_output_interface, 1);
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} else {
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output--;
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}
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} else if (strcmp(interface, zwlr_layer_shell_v1_interface.name) == 0) {
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layer_shell = wl_registry_bind(
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registry, name, &zwlr_layer_shell_v1_interface, 1);
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}
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}
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static void handle_global_remove(void *data, struct wl_registry *registry,
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uint32_t name) {
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// who cares
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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 = handle_global_remove,
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};
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int main(int argc, char **argv) {
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wlr_log_init(L_DEBUG, NULL);
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char *namespace = "wlroots";
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int exclusive_zone = 0;
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int32_t margin_right = 0, margin_bottom = 0, margin_left = 0;
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bool found;
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int c;
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while ((c = getopt(argc, argv, "nw:h:o:l:a:x:m:t:")) != -1) {
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switch (c) {
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case 'o':
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output = atoi(optarg);
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break;
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case 'w':
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width = atoi(optarg);
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break;
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case 'h':
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height = atoi(optarg);
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break;
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case 'x':
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exclusive_zone = atoi(optarg);
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break;
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case 'l': {
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struct {
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char *name;
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enum zwlr_layer_shell_v1_layer value;
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} layers[] = {
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{ "background", ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND },
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{ "bottom", ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM },
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{ "top", ZWLR_LAYER_SHELL_V1_LAYER_TOP },
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{ "overlay", ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY },
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};
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found = false;
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for (size_t i = 0; i < sizeof(layers) / sizeof(layers[0]); ++i) {
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if (strcmp(optarg, layers[i].name) == 0) {
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layer = layers[i].value;
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found = true;
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break;
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}
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}
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if (!found) {
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fprintf(stderr, "invalid layer %s\n", optarg);
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return 1;
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}
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break;
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}
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case 'a': {
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struct {
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char *name;
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uint32_t value;
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} anchors[] = {
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{ "top", ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP },
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{ "bottom", ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM },
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{ "left", ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT },
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{ "right", ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT },
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};
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found = false;
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for (size_t i = 0; i < sizeof(anchors) / sizeof(anchors[0]); ++i) {
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if (strcmp(optarg, anchors[i].name) == 0) {
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anchor |= anchors[i].value;
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found = true;
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break;
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}
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}
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if (!found) {
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fprintf(stderr, "invalid anchor %s\n", optarg);
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return 1;
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}
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break;
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}
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case 't':
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alpha = atof(optarg);
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break;
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case 'm': {
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char *endptr = optarg;
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margin_top = strtol(endptr, &endptr, 10);
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assert(*endptr == ',');
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margin_right = strtol(endptr + 1, &endptr, 10);
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assert(*endptr == ',');
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margin_bottom = strtol(endptr + 1, &endptr, 10);
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assert(*endptr == ',');
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margin_left = strtol(endptr + 1, &endptr, 10);
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assert(!*endptr);
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break;
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}
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case 'n':
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animate = true;
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break;
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default:
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break;
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}
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}
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struct wl_display *display = wl_display_connect(NULL);
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if (display == NULL) {
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fprintf(stderr, "Failed to create display\n");
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return 1;
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}
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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_roundtrip(display);
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if (compositor == NULL) {
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fprintf(stderr, "wl-compositor not available\n");
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return 1;
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}
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if (layer_shell == NULL) {
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fprintf(stderr, "layer-shell not available\n");
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return 1;
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}
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if (wl_output == NULL) {
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fprintf(stderr, "wl_output not available\n");
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return 1;
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}
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EGLint attribs[] = { EGL_ALPHA_SIZE, 8, EGL_NONE };
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wlr_egl_init(&egl, EGL_PLATFORM_WAYLAND_EXT, display,
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attribs, WL_SHM_FORMAT_ARGB8888);
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wl_surface = wl_compositor_create_surface(compositor);
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assert(wl_surface);
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layer_surface = zwlr_layer_shell_v1_get_layer_surface(layer_shell,
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wl_surface, wl_output, layer, namespace);
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assert(layer_surface);
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zwlr_layer_surface_v1_set_size(layer_surface, width, height);
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zwlr_layer_surface_v1_set_anchor(layer_surface, anchor);
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zwlr_layer_surface_v1_set_exclusive_zone(layer_surface, exclusive_zone);
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zwlr_layer_surface_v1_set_margin(layer_surface,
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margin_top, margin_right, margin_bottom, margin_left);
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zwlr_layer_surface_v1_add_listener(layer_surface,
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&layer_surface_listener, layer_surface);
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// TODO: interactivity
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wl_surface_commit(wl_surface);
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wl_display_roundtrip(display);
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egl_window = wl_egl_window_create(wl_surface, width, height);
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assert(egl_window);
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egl_surface = wlr_egl_create_surface(&egl, egl_window);
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assert(egl_surface);
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wl_display_roundtrip(display);
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draw();
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while (wl_display_dispatch(display) != -1 && run_display) {
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// This space intentionally left blank
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}
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return 0;
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}
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@ -0,0 +1,25 @@
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#ifndef ROOTSTON_LAYERS_H
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#define ROOTSTON_LAYERS_H
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#include <stdbool.h>
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#include <wlr/config.h>
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#include <wlr/types/wlr_box.h>
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#include <wlr/types/wlr_surface.h>
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#include <wlr/types/wlr_layer_shell.h>
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struct roots_layer_surface {
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struct wlr_layer_surface *layer_surface;
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struct wl_list link;
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struct wl_listener destroy;
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struct wl_listener map;
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struct wl_listener unmap;
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struct wl_listener surface_commit;
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struct wl_listener output_destroy;
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struct wl_listener output_mode;
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struct wl_listener output_transform;
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bool configured;
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struct wlr_box geo;
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};
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#endif
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@ -0,0 +1,100 @@
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#ifndef WLR_TYPES_WLR_LAYER_SHELL_H
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#define WLR_TYPES_WLR_LAYER_SHELL_H
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#include <stdbool.h>
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#include <stdint.h>
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#include <wayland-server.h>
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#include <wlr/types/wlr_box.h>
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#include <wlr/types/wlr_surface.h>
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#include "wlr-layer-shell-unstable-v1-protocol.h"
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/**
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* wlr_layer_shell allows clients to arrange themselves in "layers" on the
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* desktop in accordance with the wlr-layer-shell protocol. When a client is
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* added, the new_surface signal will be raised and passed a reference to our
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* wlr_layer_surface. At this time, the client will have configured the surface
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* as it desires, including information like desired anchors and margins. The
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* compositor should use this information to decide how to arrange the layer
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* on-screen, then determine the dimensions of the layer and call
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* wlr_layer_surface_configure. The client will then attach a buffer and commit
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* the surface, at which point the wlr_layer_surface map signal is raised and
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* the compositor should begin rendering the surface.
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*/
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struct wlr_layer_shell {
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struct wl_global *wl_global;
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struct wl_list client_resources; // wl_resource
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struct wl_listener display_destroy;
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struct {
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struct wl_signal new_surface;
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} events;
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void *data;
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};
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struct wlr_layer_surface_state {
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uint32_t anchor;
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int32_t exclusive_zone;
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struct {
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uint32_t top, right, bottom, left;
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} margin;
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bool keyboard_interactive;
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uint32_t desired_width, desired_height;
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uint32_t actual_width, actual_height;
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};
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struct wlr_layer_surface_configure {
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struct wl_list link; // wlr_layer_surface::configure_list
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uint32_t serial;
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struct wlr_layer_surface_state state;
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};
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struct wlr_layer_surface {
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struct wlr_surface *surface;
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struct wlr_output *output;
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struct wl_resource *resource;
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struct wlr_layer_shell *shell;
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const char *namespace;
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enum zwlr_layer_shell_v1_layer layer;
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bool added, configured, mapped, closed;
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uint32_t configure_serial;
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struct wl_event_source *configure_idle;
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uint32_t configure_next_serial;
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struct wl_list configure_list;
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struct wlr_layer_surface_configure *acked_configure;
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struct wlr_layer_surface_state client_pending;
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struct wlr_layer_surface_state server_pending;
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struct wlr_layer_surface_state current;
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struct wl_listener surface_destroy_listener;
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struct {
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struct wl_signal destroy;
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struct wl_signal map;
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struct wl_signal unmap;
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} events;
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void *data;
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};
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struct wlr_layer_shell *wlr_layer_shell_create(struct wl_display *display);
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void wlr_layer_shell_destroy(struct wlr_layer_shell *layer_shell);
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/**
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* Notifies the layer surface to configure itself with this width/height. The
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* layer_surface will signal its map event when the surface is ready to assume
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* this size.
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*/
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void wlr_layer_surface_configure(struct wlr_layer_surface *surface,
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uint32_t width, uint32_t height);
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/**
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* Unmaps this layer surface and notifies the client that it has been closed.
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*/
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void wlr_layer_surface_close(struct wlr_layer_surface *surface);
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#endif
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@ -0,0 +1,281 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<protocol name="wlr_layer_shell_unstable_v1">
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<copyright>
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Copyright © 2017 Drew DeVault
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
|
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without fee, provided that the above copyright notice appear in
|
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all copies and that both that copyright notice and this permission
|
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notice appear in supporting documentation, and that the name of
|
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the copyright holders not be used in advertising or publicity
|
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pertaining to distribution of the software without specific,
|
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written prior permission. The copyright holders make no
|
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representations about the suitability of this software for any
|
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purpose. It is provided "as is" without express or implied
|
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warranty.
|
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THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
|
||||
SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
||||
FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
||||
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
|
||||
AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
|
||||
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
|
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THIS SOFTWARE.
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</copyright>
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<interface name="zwlr_layer_shell_v1" version="1">
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<description summary="create surfaces that are layers of the desktop">
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Clients can use this interface to assign the surface_layer role to
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wl_surfaces. Such surfaces are assigned to a "layer" of the output and
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rendered with a defined z-depth respective to each other. They may also be
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anchored to the edges and corners of a screen and specify input handling
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semantics. This interface should be suitable for the implementation of
|
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many desktop shell components, and a broad number of other applications
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that interact with the desktop.
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</description>
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||||
|
||||
<request name="get_layer_surface">
|
||||
<description summary="create a layer_surface from a surface">
|
||||
Create a layer surface for an existing surface. This assigns the role of
|
||||
layer_surface, or raises a protocol error if another role is already
|
||||
assigned.
|
||||
|
||||
Creating a layer surface from a wl_surface which has a buffer attached
|
||||
or committed is a client error, and any attempts by a client to attach
|
||||
or manipulate a buffer prior to the first layer_surface.configure call
|
||||
must also be treated as errors.
|
||||
|
||||
Clients can specify a namespace that defines the purpose of the layer
|
||||
surface.
|
||||
</description>
|
||||
<arg name="id" type="new_id" interface="zwlr_layer_surface_v1"/>
|
||||
<arg name="surface" type="object" interface="wl_surface"/>
|
||||
<arg name="output" type="object" interface="wl_output"/>
|
||||
<arg name="layer" type="uint" enum="layer" summary="layer to add this surface to"/>
|
||||
<arg name="namespace" type="string" summary="namespace for the layer surface"/>
|
||||
</request>
|
||||
|
||||
<enum name="error">
|
||||
<entry name="role" value="0" summary="wl_surface has another role"/>
|
||||
<entry name="invalid_layer" value="1" summary="layer value is invalid"/>
|
||||
<entry name="already_constructed" value="2" summary="wl_surface has a buffer attached or committed"/>
|
||||
</enum>
|
||||
|
||||
<enum name="layer">
|
||||
<description summary="available layers for surfaces">
|
||||
These values indicate which layers a surface can be rendered in. They
|
||||
are ordered by z depth, bottom-most first. Traditional shell surfaces
|
||||
will typically be rendered between the bottom and top layers.
|
||||
Fullscreen shell surfaces are typically rendered at the top layer.
|
||||
Multiple surfaces can share a single layer, and ordering within a
|
||||
single layer is undefined.
|
||||
</description>
|
||||
|
||||
<entry name="background" value="0"/>
|
||||
<entry name="bottom" value="1"/>
|
||||
<entry name="top" value="2"/>
|
||||
<entry name="overlay" value="3"/>
|
||||
</enum>
|
||||
</interface>
|
||||
|
||||
<interface name="zwlr_layer_surface_v1" version="1">
|
||||
<description summary="layer metadata interface">
|
||||
An interface that may be implemented by a wl_surface, for surfaces that
|
||||
are designed to be rendered as a layer of a stacked desktop-like
|
||||
environment.
|
||||
|
||||
Layer surface state (size, anchor, exclusive zone, margin, interactivity)
|
||||
is double-buffered, and will be applied at the time wl_surface.commit of
|
||||
the corresponding wl_surface is called.
|
||||
</description>
|
||||
|
||||
<request name="set_size">
|
||||
<description summary="sets the size of the surface">
|
||||
Sets the size of the surface in surface-local coordinates. The
|
||||
compositor will display the surface centered with respect to its
|
||||
anchors.
|
||||
|
||||
If you pass 0 for either value, the compositor will assign it and
|
||||
inform you of the assignment in the configure event. You must set your
|
||||
anchor to opposite edges in the dimensions you omit; not doing so is a
|
||||
protocol error. Both values are 0 by default.
|
||||
|
||||
Size is double-buffered, see wl_surface.commit.
|
||||
</description>
|
||||
<arg name="width" type="uint"/>
|
||||
<arg name="height" type="uint"/>
|
||||
</request>
|
||||
|
||||
<request name="set_anchor">
|
||||
<description summary="configures the anchor point of the surface">
|
||||
Requests that the compositor anchor the surface to the specified edges
|
||||
and corners. If two orthoginal edges are specified (e.g. 'top' and
|
||||
'left'), then the anchor point will be the intersection of the edges
|
||||
(e.g. the top left corner of the output); otherwise the anchor point
|
||||
will be centered on that edge, or in the center if none is specified.
|
||||
|
||||
Anchor is double-buffered, see wl_surface.commit.
|
||||
</description>
|
||||
<arg name="anchor" type="uint" enum="anchor"/>
|
||||
</request>
|
||||
|
||||
<request name="set_exclusive_zone">
|
||||
<description summary="configures the exclusive geometry of this surface">
|
||||
Requests that the compositor avoids occluding an area of the surface
|
||||
with other surfaces. The compositor's use of this information is
|
||||
implementation-dependent - do not assume that this region will not
|
||||
actually be occluded.
|
||||
|
||||
A positive value is only meaningful if the surface is anchored to an
|
||||
edge, rather than a corner. The zone is the number of surface-local
|
||||
coordinates from the edge that are considered exclusive.
|
||||
|
||||
Surfaces that do not wish to have an exclusive zone may instead specify
|
||||
how they should interact with surfaces that do. If set to zero, the
|
||||
surface indicates that it would like to be moved to avoid occluding
|
||||
surfaces with a positive excluzive zone. If set to -1, the surface
|
||||
indicates that it would not like to be moved to accomodate for other
|
||||
surfaces, and the compositor should extend it all the way to the edges
|
||||
it is anchored to.
|
||||
|
||||
For example, a panel might set its exclusive zone to 10, so that
|
||||
maximized shell surfaces are not shown on top of it. A notification
|
||||
might set its exclusive zone to 0, so that it is moved to avoid
|
||||
occluding the panel, but shell surfaces are shown underneath it. A
|
||||
wallpaper or lock screen might set their exclusive zone to -1, so that
|
||||
they stretch below or over the panel.
|
||||
|
||||
The default value is 0.
|
||||
|
||||
Exclusive zone is double-buffered, see wl_surface.commit.
|
||||
</description>
|
||||
<arg name="zone" type="int"/>
|
||||
</request>
|
||||
|
||||
<request name="set_margin">
|
||||
<description summary="sets a margin from the anchor point">
|
||||
Requests that the surface be placed some distance away from the anchor
|
||||
point on the output, in surface-local coordinates. Setting this value
|
||||
for edges you are not anchored to has no effect.
|
||||
|
||||
The exclusive zone includes the margin.
|
||||
|
||||
Margin is double-buffered, see wl_surface.commit.
|
||||
</description>
|
||||
<arg name="top" type="int"/>
|
||||
<arg name="right" type="int"/>
|
||||
<arg name="bottom" type="int"/>
|
||||
<arg name="left" type="int"/>
|
||||
</request>
|
||||
|
||||
<request name="set_keyboard_interactivity">
|
||||
<description summary="requests keyboard events">
|
||||
Set to 1 to request that the seat send keyboard events to this layer
|
||||
surface. For layers below the shell surface layer, the seat will use
|
||||
normal focus semantics. For layers above the shell surface layers, the
|
||||
seat will always give exclusive keyboard focus to the top-most layer
|
||||
which has keyboard interactivity set to true.
|
||||
|
||||
Layer surfaces receive pointer, touch, and tablet events normally. If
|
||||
you do not want to receive them, set the input region on your surface
|
||||
to an empty region.
|
||||
|
||||
Events is double-buffered, see wl_surface.commit.
|
||||
</description>
|
||||
<arg name="keyboard_interactivity" type="uint"/>
|
||||
</request>
|
||||
|
||||
<request name="get_popup">
|
||||
<description summary="assign this layer_surface as an xdg_popup parent">
|
||||
This assigns an xdg_popup's parent to this layer_surface. This popup
|
||||
should have been created via xdg_surface::get_popup with the parent set
|
||||
to NULL, and this request must be invoked before committing the popup's
|
||||
initial state.
|
||||
|
||||
See the documentation of xdg_popup for more details about what an
|
||||
xdg_popup is and how it is used.
|
||||
</description>
|
||||
<arg name="popup" type="object" interface="xdg_popup"/>
|
||||
</request>
|
||||
|
||||
<request name="ack_configure">
|
||||
<description summary="ack a configure event">
|
||||
When a configure event is received, if a client commits the
|
||||
surface in response to the configure event, then the client
|
||||
must make an ack_configure request sometime before the commit
|
||||
request, passing along the serial of the configure event.
|
||||
|
||||
If the client receives multiple configure events before it
|
||||
can respond to one, it only has to ack the last configure event.
|
||||
|
||||
A client is not required to commit immediately after sending
|
||||
an ack_configure request - it may even ack_configure several times
|
||||
before its next surface commit.
|
||||
|
||||
A client may send multiple ack_configure requests before committing, but
|
||||
only the last request sent before a commit indicates which configure
|
||||
event the client really is responding to.
|
||||
</description>
|
||||
<arg name="serial" type="uint" summary="the serial from the configure event"/>
|
||||
</request>
|
||||
|
||||
<request name="destroy" type="destructor">
|
||||
<description summary="destroy the layer_surface">
|
||||
This request destroys the layer surface.
|
||||
</description>
|
||||
</request>
|
||||
|
||||
<event name="configure">
|
||||
<description summary="suggest a surface change">
|
||||
The configure event asks the client to resize its surface.
|
||||
|
||||
Clients should arrange their surface for the new states, and then send
|
||||
an ack_configure request with the serial sent in this configure event at
|
||||
some point before committing the new surface.
|
||||
|
||||
The client is free to dismiss all but the last configure event it
|
||||
received.
|
||||
|
||||
The width and height arguments specify the size of the window in
|
||||
surface-local coordinates.
|
||||
|
||||
The size is a hint, in the sense that the client is free to ignore it if
|
||||
it doesn't resize, pick a smaller size (to satisfy aspect ratio or
|
||||
resize in steps of NxM pixels). If the client picks a smaller size and
|
||||
is anchored to two opposite anchors (e.g. 'top' and 'bottom'), the
|
||||
surface will be centered on this axis.
|
||||
|
||||
If the width or height arguments are zero, it means the client should
|
||||
decide its own window dimension.
|
||||
</description>
|
||||
<arg name="serial" type="uint"/>
|
||||
<arg name="width" type="uint"/>
|
||||
<arg name="height" type="uint"/>
|
||||
</event>
|
||||
|
||||
<event name="closed">
|
||||
<description summary="surface should be closed">
|
||||
The closed event is sent by the compositor when the surface will no
|
||||
longer be shown. The output may have been destroyed or the user may
|
||||
have asked for it to be removed. Further changes to the surface will be
|
||||
ignored. The client should destroy the resource after receiving this
|
||||
event, and create a new surface if they so choose.
|
||||
</description>
|
||||
</event>
|
||||
|
||||
<enum name="error">
|
||||
<entry name="invalid_surface_state" value="0" summary="provided surface state is invalid"/>
|
||||
<entry name="invalid_size" value="1" summary="size is invalid"/>
|
||||
<entry name="invalid_anchor" value="2" summary="anchor bitfield is invalid"/>
|
||||
</enum>
|
||||
|
||||
<enum name="anchor" bitfield="true">
|
||||
<entry name="top" value="1" summary="the top edge of the anchor rectangle"/>
|
||||
<entry name="bottom" value="2" summary="the bottom edge of the anchor rectangle"/>
|
||||
<entry name="left" value="4" summary="the left edge of the anchor rectangle"/>
|
||||
<entry name="right" value="8" summary="the right edge of the anchor rectangle"/>
|
||||
</enum>
|
||||
</interface>
|
||||
</protocol>
|
||||
@ -0,0 +1,339 @@
|
||||
#include <assert.h>
|
||||
#include <stdbool.h>
|
||||
#include <stdlib.h>
|
||||
#include <wayland-server.h>
|
||||
#include <wlr/types/wlr_box.h>
|
||||
#include <wlr/types/wlr_surface.h>
|
||||
#include <wlr/types/wlr_layer_shell.h>
|
||||
#include <wlr/util/log.h>
|
||||
#include "rootston/desktop.h"
|
||||
#include "rootston/layers.h"
|
||||
#include "rootston/output.h"
|
||||
#include "rootston/server.h"
|
||||
|
||||
static void apply_exclusive(struct wlr_box *usable_area,
|
||||
uint32_t anchor, int32_t exclusive,
|
||||
int32_t margin_top, int32_t margin_right,
|
||||
int32_t margin_bottom, int32_t margin_left) {
|
||||
if (exclusive <= 0) {
|
||||
return;
|
||||
}
|
||||
struct {
|
||||
uint32_t anchors;
|
||||
int *positive_axis;
|
||||
int *negative_axis;
|
||||
int margin;
|
||||
} edges[] = {
|
||||
{
|
||||
.anchors =
|
||||
ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT |
|
||||
ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT |
|
||||
ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP,
|
||||
.positive_axis = &usable_area->y,
|
||||
.negative_axis = &usable_area->height,
|
||||
.margin = margin_top,
|
||||
},
|
||||
{
|
||||
.anchors =
|
||||
ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT |
|
||||
ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT |
|
||||
ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM,
|
||||
.positive_axis = NULL,
|
||||
.negative_axis = &usable_area->height,
|
||||
.margin = margin_bottom,
|
||||
},
|
||||
{
|
||||
.anchors =
|
||||
ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT |
|
||||
ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP |
|
||||
ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM,
|
||||
.positive_axis = &usable_area->x,
|
||||
.negative_axis = &usable_area->width,
|
||||
.margin = margin_left,
|
||||
},
|
||||
{
|
||||
.anchors =
|
||||
ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT |
|
||||
ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP |
|
||||
ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM,
|
||||
.positive_axis = NULL,
|
||||
.negative_axis = &usable_area->width,
|
||||
.margin = margin_right,
|
||||
},
|
||||
};
|
||||
for (size_t i = 0; i < sizeof(edges) / sizeof(edges[0]); ++i) {
|
||||
if ((anchor & edges[i].anchors) == edges[i].anchors) {
|
||||
if (edges[i].positive_axis) {
|
||||
*edges[i].positive_axis += exclusive + edges[i].margin;
|
||||
}
|
||||
if (edges[i].negative_axis) {
|
||||
*edges[i].negative_axis -= exclusive + edges[i].margin;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void arrange_layer(struct wlr_output *output, struct wl_list *list,
|
||||
struct wlr_box *usable_area, bool exclusive) {
|
||||
struct roots_layer_surface *roots_surface;
|
||||
struct wlr_box full_area = { 0 };
|
||||
wlr_output_effective_resolution(output,
|
||||
&full_area.width, &full_area.height);
|
||||
wl_list_for_each(roots_surface, list, link) {
|
||||
struct wlr_layer_surface *layer = roots_surface->layer_surface;
|
||||
struct wlr_layer_surface_state *state = &layer->current;
|
||||
if (exclusive != (state->exclusive_zone >0)) {
|
||||
continue;
|
||||
}
|
||||
struct wlr_box bounds;
|
||||
if (state->exclusive_zone == -1) {
|
||||
bounds = full_area;
|
||||
} else {
|
||||
bounds = *usable_area;
|
||||
}
|
||||
struct wlr_box box = {
|
||||
.width = state->desired_width,
|
||||
.height = state->desired_height
|
||||
};
|
||||
// Horizontal axis
|
||||
const uint32_t both_horiz = ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT
|
||||
| ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT;
|
||||
if ((state->anchor & both_horiz) && box.width == 0) {
|
||||
box.x = bounds.x;
|
||||
box.width = bounds.width;
|
||||
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT)) {
|
||||
box.x = bounds.x;
|
||||
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT)) {
|
||||
box.x = bounds.x + (bounds.width - box.width);
|
||||
} else {
|
||||
box.x = bounds.x + ((bounds.width / 2) - (box.width / 2));
|
||||
}
|
||||
// Vertical axis
|
||||
const uint32_t both_vert = ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP
|
||||
| ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM;
|
||||
if ((state->anchor & both_vert) && box.height == 0) {
|
||||
box.y = bounds.y;
|
||||
box.height = bounds.height;
|
||||
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP)) {
|
||||
box.y = bounds.y;
|
||||
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM)) {
|
||||
box.y = bounds.y + (bounds.height - box.height);
|
||||
} else {
|
||||
box.y = bounds.y + ((bounds.height / 2) - (box.height / 2));
|
||||
}
|
||||
// Margin
|
||||
if ((state->anchor & both_horiz) == both_horiz) {
|
||||
box.x += state->margin.left;
|
||||
box.width -= state->margin.left + state->margin.right;
|
||||
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT)) {
|
||||
box.x += state->margin.left;
|
||||
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT)) {
|
||||
box.x -= state->margin.right;
|
||||
}
|
||||
if ((state->anchor & both_vert) == both_vert) {
|
||||
box.y += state->margin.top;
|
||||
box.height -= state->margin.top + state->margin.bottom;
|
||||
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP)) {
|
||||
box.y += state->margin.top;
|
||||
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM)) {
|
||||
box.y -= state->margin.bottom;
|
||||
}
|
||||
if (box.width < 0 || box.height < 0) {
|
||||
// TODO: Bubble up a protocol error?
|
||||
wlr_layer_surface_close(layer);
|
||||
continue;
|
||||
}
|
||||
// Apply
|
||||
roots_surface->geo = box;
|
||||
apply_exclusive(usable_area, state->anchor, state->exclusive_zone,
|
||||
state->margin.top, state->margin.right,
|
||||
state->margin.bottom, state->margin.left);
|
||||
wlr_layer_surface_configure(layer, box.width, box.height);
|
||||
}
|
||||
}
|
||||
|
||||
static void arrange_layers(struct wlr_output *_output) {
|
||||
struct roots_output *output = _output->data;
|
||||
|
||||
struct wlr_box usable_area = { 0 };
|
||||
wlr_output_effective_resolution(output->wlr_output,
|
||||
&usable_area.width, &usable_area.height);
|
||||
|
||||
// Arrange exclusive surfaces from top->bottom
|
||||
arrange_layer(output->wlr_output,
|
||||
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY],
|
||||
&usable_area, true);
|
||||
arrange_layer(output->wlr_output,
|
||||
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP],
|
||||
&usable_area, true);
|
||||
arrange_layer(output->wlr_output,
|
||||
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM],
|
||||
&usable_area, true);
|
||||
arrange_layer(output->wlr_output,
|
||||
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND],
|
||||
&usable_area, true);
|
||||
memcpy(&output->usable_area, &usable_area, sizeof(struct wlr_box));
|
||||
|
||||
struct roots_view *view;
|
||||
wl_list_for_each(view, &output->desktop->views, link) {
|
||||
if (view->maximized) {
|
||||
view_arrange_maximized(view);
|
||||
}
|
||||
}
|
||||
|
||||
// Arrange non-exlusive surfaces from top->bottom
|
||||
usable_area.x = usable_area.y = 0;
|
||||
wlr_output_effective_resolution(output->wlr_output,
|
||||
&usable_area.width, &usable_area.height);
|
||||
arrange_layer(output->wlr_output,
|
||||
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY],
|
||||
&usable_area, false);
|
||||
arrange_layer(output->wlr_output,
|
||||
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP],
|
||||
&usable_area, false);
|
||||
arrange_layer(output->wlr_output,
|
||||
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM],
|
||||
&usable_area, false);
|
||||
arrange_layer(output->wlr_output,
|
||||
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND],
|
||||
&usable_area, false);
|
||||
}
|
||||
|
||||
static void handle_output_destroy(struct wl_listener *listener, void *data) {
|
||||
struct roots_layer_surface *layer =
|
||||
wl_container_of(listener, layer, output_destroy);
|
||||
layer->layer_surface->output = NULL;
|
||||
wl_list_remove(&layer->output_destroy.link);
|
||||
wl_list_remove(&layer->output_mode.link);
|
||||
wlr_layer_surface_close(layer->layer_surface);
|
||||
}
|
||||
|
||||
static void handle_output_mode(struct wl_listener *listener, void *data) {
|
||||
arrange_layers((struct wlr_output *)data);
|
||||
}
|
||||
|
||||
static void handle_output_transform(struct wl_listener *listener, void *data) {
|
||||
arrange_layers((struct wlr_output *)data);
|
||||
}
|
||||
|
||||
static void handle_surface_commit(struct wl_listener *listener, void *data) {
|
||||
struct roots_layer_surface *layer =
|
||||
wl_container_of(listener, layer, surface_commit);
|
||||
struct wlr_layer_surface *layer_surface = layer->layer_surface;
|
||||
struct wlr_output *wlr_output = layer_surface->output;
|
||||
if (wlr_output != NULL) {
|
||||
struct roots_output *output = wlr_output->data;
|
||||
struct wlr_box old_geo = layer->geo;
|
||||
arrange_layers(wlr_output);
|
||||
if (memcmp(&old_geo, &layer->geo, sizeof(struct wlr_box)) != 0) {
|
||||
output_damage_whole_local_surface(output, layer_surface->surface,
|
||||
old_geo.x, old_geo.y, 0);
|
||||
output_damage_whole_local_surface(output, layer_surface->surface,
|
||||
layer->geo.x, layer->geo.y, 0);
|
||||
} else {
|
||||
output_damage_from_local_surface(output, layer_surface->surface,
|
||||
layer->geo.x, layer->geo.y, 0);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void unmap(struct wlr_layer_surface *layer_surface) {
|
||||
struct roots_layer_surface *layer = layer_surface->data;
|
||||
struct wlr_output *wlr_output = layer_surface->output;
|
||||
if (wlr_output != NULL) {
|
||||
struct roots_output *output = wlr_output->data;
|
||||
wlr_output_damage_add_box(output->damage, &layer->geo);
|
||||
}
|
||||
}
|
||||
|
||||
static void handle_destroy(struct wl_listener *listener, void *data) {
|
||||
struct roots_layer_surface *layer = wl_container_of(
|
||||
listener, layer, destroy);
|
||||
if (layer->layer_surface->mapped) {
|
||||
unmap(layer->layer_surface);
|
||||
}
|
||||
wl_list_remove(&layer->link);
|
||||
wl_list_remove(&layer->destroy.link);
|
||||
wl_list_remove(&layer->map.link);
|
||||
wl_list_remove(&layer->unmap.link);
|
||||
wl_list_remove(&layer->surface_commit.link);
|
||||
wl_list_remove(&layer->output_destroy.link);
|
||||
wl_list_remove(&layer->output_mode.link);
|
||||
wl_list_remove(&layer->output_transform.link);
|
||||
arrange_layers(layer->layer_surface->output);
|
||||
free(layer);
|
||||
}
|
||||
|
||||
static void handle_map(struct wl_listener *listener, void *data) {
|
||||
struct wlr_layer_surface *layer_surface = data;
|
||||
struct roots_layer_surface *layer = layer_surface->data;
|
||||
struct wlr_output *wlr_output = layer_surface->output;
|
||||
struct roots_output *output = wlr_output->data;
|
||||
wlr_output_damage_add_box(output->damage, &layer->geo);
|
||||
}
|
||||
|
||||
static void handle_unmap(struct wl_listener *listener, void *data) {
|
||||
struct roots_layer_surface *layer = wl_container_of(
|
||||
listener, layer, unmap);
|
||||
unmap(layer->layer_surface);
|
||||
}
|
||||
|
||||
void handle_layer_shell_surface(struct wl_listener *listener, void *data) {
|
||||
struct wlr_layer_surface *layer_surface = data;
|
||||
struct roots_desktop *desktop =
|
||||
wl_container_of(listener, desktop, layer_shell_surface);
|
||||
wlr_log(L_DEBUG, "new layer surface: namespace %s layer %d anchor %d "
|
||||
"size %dx%d margin %d,%d,%d,%d",
|
||||
layer_surface->namespace, layer_surface->layer, layer_surface->layer,
|
||||
layer_surface->client_pending.desired_width,
|
||||
layer_surface->client_pending.desired_height,
|
||||
layer_surface->client_pending.margin.top,
|
||||
layer_surface->client_pending.margin.right,
|
||||
layer_surface->client_pending.margin.bottom,
|
||||
layer_surface->client_pending.margin.left);
|
||||
|
||||
struct roots_layer_surface *roots_surface =
|
||||
calloc(1, sizeof(struct roots_layer_surface));
|
||||
if (!roots_surface) {
|
||||
return;
|
||||
}
|
||||
|
||||
roots_surface->surface_commit.notify = handle_surface_commit;
|
||||
wl_signal_add(&layer_surface->surface->events.commit,
|
||||
&roots_surface->surface_commit);
|
||||
|
||||
roots_surface->output_destroy.notify = handle_output_destroy;
|
||||
wl_signal_add(&layer_surface->output->events.destroy,
|
||||
&roots_surface->output_destroy);
|
||||
|
||||
roots_surface->output_mode.notify = handle_output_mode;
|
||||
wl_signal_add(&layer_surface->output->events.mode,
|
||||
&roots_surface->output_mode);
|
||||
|
||||
roots_surface->output_transform.notify = handle_output_transform;
|
||||
wl_signal_add(&layer_surface->output->events.transform,
|
||||
&roots_surface->output_transform);
|
||||
|
||||
roots_surface->destroy.notify = handle_destroy;
|
||||
wl_signal_add(&layer_surface->events.destroy, &roots_surface->destroy);
|
||||
roots_surface->map.notify = handle_map;
|
||||
wl_signal_add(&layer_surface->events.map, &roots_surface->map);
|
||||
roots_surface->unmap.notify = handle_unmap;
|
||||
wl_signal_add(&layer_surface->events.unmap, &roots_surface->unmap);
|
||||
// TODO: Listen for subsurfaces
|
||||
|
||||
roots_surface->layer_surface = layer_surface;
|
||||
layer_surface->data = roots_surface;
|
||||
|
||||
struct roots_output *output = layer_surface->output->data;
|
||||
wl_list_insert(&output->layers[layer_surface->layer], &roots_surface->link);
|
||||
|
||||
// Temporarily set the layer's current state to client_pending
|
||||
// So that we can easily arrange it
|
||||
struct wlr_layer_surface_state old_state = layer_surface->current;
|
||||
layer_surface->current = layer_surface->client_pending;
|
||||
|
||||
arrange_layers(output->wlr_output);
|
||||
|
||||
layer_surface->current = old_state;
|
||||
}
|
||||
@ -0,0 +1,415 @@
|
||||
#define _POSIX_C_SOURCE 200809L
|
||||
#include <assert.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <wayland-server.h>
|
||||
#include <wlr/types/wlr_layer_shell.h>
|
||||
#include <wlr/types/wlr_output.h>
|
||||
#include <wlr/types/wlr_surface.h>
|
||||
#include <wlr/util/log.h>
|
||||
#include "util/signal.h"
|
||||
#include "wlr-layer-shell-unstable-v1-protocol.h"
|
||||
|
||||
static const char *zwlr_layer_surface_role = "zwlr_layer_surface";
|
||||
|
||||
static void resource_handle_destroy(struct wl_client *client,
|
||||
struct wl_resource *resource) {
|
||||
wl_resource_destroy(resource);
|
||||
}
|
||||
|
||||
static const struct zwlr_layer_shell_v1_interface layer_shell_implementation;
|
||||
static const struct zwlr_layer_surface_v1_interface layer_surface_implementation;
|
||||
|
||||
static struct wlr_layer_shell *layer_shell_from_resource(
|
||||
struct wl_resource *resource) {
|
||||
assert(wl_resource_instance_of(resource, &zwlr_layer_shell_v1_interface,
|
||||
&layer_shell_implementation));
|
||||
return wl_resource_get_user_data(resource);
|
||||
}
|
||||
|
||||
static struct wlr_layer_surface *layer_surface_from_resource(
|
||||
struct wl_resource *resource) {
|
||||
assert(wl_resource_instance_of(resource, &zwlr_layer_surface_v1_interface,
|
||||
&layer_surface_implementation));
|
||||
return wl_resource_get_user_data(resource);
|
||||
}
|
||||
|
||||
static void layer_surface_configure_destroy(
|
||||
struct wlr_layer_surface_configure *configure) {
|
||||
if (configure == NULL) {
|
||||
return;
|
||||
}
|
||||
wl_list_remove(&configure->link);
|
||||
free(configure);
|
||||
}
|
||||
|
||||
static void layer_surface_handle_ack_configure(struct wl_client *client,
|
||||
struct wl_resource *resource, uint32_t serial) {
|
||||
struct wlr_layer_surface *surface = layer_surface_from_resource(resource);
|
||||
|
||||
bool found = false;
|
||||
struct wlr_layer_surface_configure *configure, *tmp;
|
||||
wl_list_for_each_safe(configure, tmp, &surface->configure_list, link) {
|
||||
if (configure->serial < serial) {
|
||||
layer_surface_configure_destroy(configure);
|
||||
} else if (configure->serial == serial) {
|
||||
found = true;
|
||||
break;
|
||||
} else {
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (!found) {
|
||||
wl_resource_post_error(resource,
|
||||
ZWLR_LAYER_SURFACE_V1_ERROR_INVALID_SURFACE_STATE,
|
||||
"wrong configure serial: %u", serial);
|
||||
return;
|
||||
}
|
||||
|
||||
if (surface->acked_configure) {
|
||||
layer_surface_configure_destroy(surface->acked_configure);
|
||||
}
|
||||
surface->acked_configure = configure;
|
||||
wl_list_remove(&configure->link);
|
||||
wl_list_init(&configure->link);
|
||||
}
|
||||
|
||||
static void layer_surface_handle_set_size(struct wl_client *client,
|
||||
struct wl_resource *resource, uint32_t width, uint32_t height) {
|
||||
struct wlr_layer_surface *surface = layer_surface_from_resource(resource);
|
||||
surface->client_pending.desired_width = width;
|
||||
surface->client_pending.desired_height = height;
|
||||
}
|
||||
|
||||
static void layer_surface_handle_set_anchor(struct wl_client *client,
|
||||
struct wl_resource *resource, uint32_t anchor) {
|
||||
const uint32_t max_anchor =
|
||||
ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP |
|
||||
ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM |
|
||||
ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT |
|
||||
ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT;
|
||||
if (anchor > max_anchor) {
|
||||
wl_resource_post_error(resource,
|
||||
ZWLR_LAYER_SURFACE_V1_ERROR_INVALID_ANCHOR,
|
||||
"invalid anchor %d", anchor);
|
||||
}
|
||||
struct wlr_layer_surface *surface = layer_surface_from_resource(resource);
|
||||
surface->client_pending.anchor = anchor;
|
||||
}
|
||||
|
||||
static void layer_surface_handle_set_exclusive_zone(struct wl_client *client,
|
||||
struct wl_resource *resource, int32_t zone) {
|
||||
struct wlr_layer_surface *surface = layer_surface_from_resource(resource);
|
||||
surface->client_pending.exclusive_zone = zone;
|
||||
}
|
||||
|
||||
static void layer_surface_handle_set_margin(
|
||||
struct wl_client *client, struct wl_resource *resource,
|
||||
int32_t top, int32_t right, int32_t bottom, int32_t left) {
|
||||
struct wlr_layer_surface *surface = layer_surface_from_resource(resource);
|
||||
surface->client_pending.margin.top = top;
|
||||
surface->client_pending.margin.right = right;
|
||||
surface->client_pending.margin.bottom = bottom;
|
||||
surface->client_pending.margin.left = left;
|
||||
}
|
||||
|
||||
static void layer_surface_handle_set_keyboard_interactivity(
|
||||
struct wl_client *client, struct wl_resource *resource,
|
||||
uint32_t interactive) {
|
||||
struct wlr_layer_surface *surface = layer_surface_from_resource(resource);
|
||||
surface->client_pending.keyboard_interactive = !!interactive;
|
||||
}
|
||||
|
||||
static void layer_surface_handle_get_popup(struct wl_client *client,
|
||||
struct wl_resource *resource, struct wl_resource *popup) {
|
||||
// TODO
|
||||
}
|
||||
|
||||
static const struct zwlr_layer_surface_v1_interface layer_surface_implementation = {
|
||||
.destroy = resource_handle_destroy,
|
||||
.ack_configure = layer_surface_handle_ack_configure,
|
||||
.set_size = layer_surface_handle_set_size,
|
||||
.set_anchor = layer_surface_handle_set_anchor,
|
||||
.set_exclusive_zone = layer_surface_handle_set_exclusive_zone,
|
||||
.set_margin = layer_surface_handle_set_margin,
|
||||
.set_keyboard_interactivity = layer_surface_handle_set_keyboard_interactivity,
|
||||
.get_popup = layer_surface_handle_get_popup,
|
||||
};
|
||||
|
||||
static void layer_surface_unmap(struct wlr_layer_surface *surface) {
|
||||
// TODO: probably need to ungrab before this event
|
||||
wlr_signal_emit_safe(&surface->events.unmap, surface);
|
||||
|
||||
struct wlr_layer_surface_configure *configure, *tmp;
|
||||
wl_list_for_each_safe(configure, tmp, &surface->configure_list, link) {
|
||||
layer_surface_configure_destroy(configure);
|
||||
}
|
||||
|
||||
surface->configured = surface->mapped = false;
|
||||
surface->configure_serial = 0;
|
||||
if (surface->configure_idle) {
|
||||
wl_event_source_remove(surface->configure_idle);
|
||||
surface->configure_idle = NULL;
|
||||
}
|
||||
surface->configure_next_serial = 0;
|
||||
}
|
||||
|
||||
static void layer_surface_destroy(struct wlr_layer_surface *surface) {
|
||||
layer_surface_unmap(surface);
|
||||
wlr_signal_emit_safe(&surface->events.destroy, surface);
|
||||
wl_resource_set_user_data(surface->resource, NULL);
|
||||
wl_list_remove(&surface->surface_destroy_listener.link);
|
||||
wlr_surface_set_role_committed(surface->surface, NULL, NULL);
|
||||
free(surface);
|
||||
}
|
||||
|
||||
static void layer_surface_resource_destroy(struct wl_resource *resource) {
|
||||
struct wlr_layer_surface *surface =
|
||||
layer_surface_from_resource(resource);
|
||||
if (surface != NULL) {
|
||||
layer_surface_destroy(surface);
|
||||
}
|
||||
}
|
||||
|
||||
static bool wlr_layer_surface_state_changed(struct wlr_layer_surface *surface) {
|
||||
struct wlr_layer_surface_state *state;
|
||||
if (wl_list_empty(&surface->configure_list)) {
|
||||
if (surface->acked_configure) {
|
||||
state = &surface->acked_configure->state;
|
||||
} else if (!surface->configured) {
|
||||
return true;
|
||||
} else {
|
||||
state = &surface->current;
|
||||
}
|
||||
} else {
|
||||
struct wlr_layer_surface_configure *configure =
|
||||
wl_container_of(surface->configure_list.prev, configure, link);
|
||||
state = &configure->state;
|
||||
}
|
||||
|
||||
bool changed = state->actual_width != surface->server_pending.actual_width
|
||||
|| state->actual_height != surface->server_pending.actual_height;
|
||||
return changed;
|
||||
}
|
||||
|
||||
void wlr_layer_surface_configure(struct wlr_layer_surface *surface,
|
||||
uint32_t width, uint32_t height) {
|
||||
surface->server_pending.actual_width = width;
|
||||
surface->server_pending.actual_height = height;
|
||||
if (wlr_layer_surface_state_changed(surface)) {
|
||||
struct wl_display *display =
|
||||
wl_client_get_display(wl_resource_get_client(surface->resource));
|
||||
struct wlr_layer_surface_configure *configure =
|
||||
calloc(1, sizeof(struct wlr_layer_surface_configure));
|
||||
if (configure == NULL) {
|
||||
wl_client_post_no_memory(wl_resource_get_client(surface->resource));
|
||||
return;
|
||||
}
|
||||
surface->configure_next_serial = wl_display_next_serial(display);
|
||||
wl_list_insert(surface->configure_list.prev, &configure->link);
|
||||
configure->state.actual_width = width;
|
||||
configure->state.actual_height = height;
|
||||
configure->serial = surface->configure_next_serial;
|
||||
zwlr_layer_surface_v1_send_configure(surface->resource,
|
||||
configure->serial, configure->state.actual_width,
|
||||
configure->state.actual_height);
|
||||
}
|
||||
}
|
||||
|
||||
void wlr_layer_surface_close(struct wlr_layer_surface *surface) {
|
||||
if (surface->closed) {
|
||||
return;
|
||||
}
|
||||
surface->closed = true;
|
||||
layer_surface_unmap(surface);
|
||||
zwlr_layer_surface_v1_send_closed(surface->resource);
|
||||
}
|
||||
|
||||
static void handle_wlr_surface_committed(struct wlr_surface *wlr_surface,
|
||||
void *role_data) {
|
||||
struct wlr_layer_surface *surface = role_data;
|
||||
|
||||
if (surface->closed) {
|
||||
// Ignore commits after the compositor has closed it
|
||||
return;
|
||||
}
|
||||
|
||||
if (surface->acked_configure) {
|
||||
struct wlr_layer_surface_configure *configure =
|
||||
surface->acked_configure;
|
||||
surface->configured = true;
|
||||
surface->configure_serial = configure->serial;
|
||||
surface->current.actual_width = configure->state.actual_width;
|
||||
surface->current.actual_height = configure->state.actual_height;
|
||||
layer_surface_configure_destroy(configure);
|
||||
surface->acked_configure = NULL;
|
||||
}
|
||||
|
||||
if (wlr_surface_has_buffer(surface->surface) && !surface->configured) {
|
||||
wl_resource_post_error(surface->resource,
|
||||
ZWLR_LAYER_SHELL_V1_ERROR_ALREADY_CONSTRUCTED,
|
||||
"layer_surface has never been configured");
|
||||
return;
|
||||
}
|
||||
|
||||
surface->current.anchor = surface->client_pending.anchor;
|
||||
surface->current.exclusive_zone = surface->client_pending.exclusive_zone;
|
||||
surface->current.margin = surface->client_pending.margin;
|
||||
surface->current.keyboard_interactive =
|
||||
surface->client_pending.keyboard_interactive;
|
||||
surface->current.desired_width = surface->client_pending.desired_width;
|
||||
surface->current.desired_height = surface->client_pending.desired_height;
|
||||
|
||||
if (!surface->added) {
|
||||
surface->added = true;
|
||||
wlr_signal_emit_safe(&surface->shell->events.new_surface,
|
||||
surface);
|
||||
}
|
||||
if (surface->configured && wlr_surface_has_buffer(surface->surface) &&
|
||||
!surface->mapped) {
|
||||
surface->mapped = true;
|
||||
wlr_signal_emit_safe(&surface->events.map, surface);
|
||||
}
|
||||
if (surface->configured && !wlr_surface_has_buffer(surface->surface) &&
|
||||
surface->mapped) {
|
||||
layer_surface_unmap(surface);
|
||||
}
|
||||
}
|
||||
|
||||
static void handle_wlr_surface_destroyed(struct wl_listener *listener,
|
||||
void *data) {
|
||||
struct wlr_layer_surface *layer_surface =
|
||||
wl_container_of(listener, layer_surface, surface_destroy_listener);
|
||||
layer_surface_destroy(layer_surface);
|
||||
}
|
||||
|
||||
static void layer_shell_handle_get_layer_surface(struct wl_client *wl_client,
|
||||
struct wl_resource *client_resource, uint32_t id,
|
||||
struct wl_resource *surface_resource,
|
||||
struct wl_resource *output_resource,
|
||||
uint32_t layer, const char *namespace) {
|
||||
struct wlr_layer_shell *shell =
|
||||
layer_shell_from_resource(client_resource);
|
||||
struct wlr_surface *wlr_surface =
|
||||
wlr_surface_from_resource(surface_resource);
|
||||
|
||||
if (wlr_surface_set_role(wlr_surface, zwlr_layer_surface_role,
|
||||
client_resource, ZWLR_LAYER_SHELL_V1_ERROR_ROLE)) {
|
||||
return;
|
||||
}
|
||||
|
||||
struct wlr_layer_surface *surface =
|
||||
calloc(1, sizeof(struct wlr_layer_surface));
|
||||
if (surface == NULL) {
|
||||
wl_client_post_no_memory(wl_client);
|
||||
return;
|
||||
}
|
||||
|
||||
surface->shell = shell;
|
||||
surface->surface = wlr_surface;
|
||||
surface->output = wlr_output_from_resource(output_resource);
|
||||
surface->resource = wl_resource_create(wl_client,
|
||||
&zwlr_layer_surface_v1_interface,
|
||||
wl_resource_get_version(client_resource),
|
||||
id);
|
||||
surface->namespace = strdup(namespace);
|
||||
surface->layer = layer;
|
||||
if (surface->resource == NULL || surface->namespace == NULL) {
|
||||
free(surface);
|
||||
wl_client_post_no_memory(wl_client);
|
||||
return;
|
||||
}
|
||||
if (layer > ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY) {
|
||||
wl_resource_post_error(surface->resource,
|
||||
ZWLR_LAYER_SHELL_V1_ERROR_INVALID_LAYER,
|
||||
"Invalid layer %d", layer);
|
||||
free(surface);
|
||||
return;
|
||||
}
|
||||
|
||||
wl_list_init(&surface->configure_list);
|
||||
|
||||
wl_signal_init(&surface->events.destroy);
|
||||
wl_signal_add(&surface->surface->events.destroy,
|
||||
&surface->surface_destroy_listener);
|
||||
surface->surface_destroy_listener.notify = handle_wlr_surface_destroyed;
|
||||
wl_signal_init(&surface->events.map);
|
||||
wl_signal_init(&surface->events.unmap);
|
||||
|
||||
wlr_surface_set_role_committed(surface->surface,
|
||||
handle_wlr_surface_committed, surface);
|
||||
|
||||
wlr_log(L_DEBUG, "new layer_surface %p (res %p)",
|
||||
surface, surface->resource);
|
||||
wl_resource_set_implementation(surface->resource,
|
||||
&layer_surface_implementation, surface, layer_surface_resource_destroy);
|
||||
}
|
||||
|
||||
static const struct zwlr_layer_shell_v1_interface layer_shell_implementation = {
|
||||
.get_layer_surface = layer_shell_handle_get_layer_surface,
|
||||
};
|
||||
|
||||
static void client_handle_destroy(struct wl_resource *resource) {
|
||||
wl_list_remove(wl_resource_get_link(resource));
|
||||
}
|
||||
|
||||
static void layer_shell_bind(struct wl_client *wl_client, void *data,
|
||||
uint32_t version, uint32_t id) {
|
||||
struct wlr_layer_shell *layer_shell = data;
|
||||
assert(wl_client && layer_shell);
|
||||
|
||||
struct wl_resource *resource = wl_resource_create(
|
||||
wl_client, &zwlr_layer_shell_v1_interface, version, id);
|
||||
if (resource == NULL) {
|
||||
wl_client_post_no_memory(wl_client);
|
||||
return;
|
||||
}
|
||||
wl_resource_set_implementation(resource,
|
||||
&layer_shell_implementation, layer_shell, client_handle_destroy);
|
||||
wl_list_insert(&layer_shell->client_resources,
|
||||
wl_resource_get_link(resource));
|
||||
}
|
||||
|
||||
static void handle_display_destroy(struct wl_listener *listener, void *data) {
|
||||
struct wlr_layer_shell *layer_shell =
|
||||
wl_container_of(listener, layer_shell, display_destroy);
|
||||
wlr_layer_shell_destroy(layer_shell);
|
||||
}
|
||||
|
||||
struct wlr_layer_shell *wlr_layer_shell_create(struct wl_display *display) {
|
||||
struct wlr_layer_shell *layer_shell =
|
||||
calloc(1, sizeof(struct wlr_layer_shell));
|
||||
if (!layer_shell) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
wl_list_init(&layer_shell->client_resources);
|
||||
|
||||
struct wl_global *wl_global = wl_global_create(display,
|
||||
&zwlr_layer_shell_v1_interface, 1, layer_shell, layer_shell_bind);
|
||||
if (!wl_global) {
|
||||
free(layer_shell);
|
||||
return NULL;
|
||||
}
|
||||
layer_shell->wl_global = wl_global;
|
||||
|
||||
wl_signal_init(&layer_shell->events.new_surface);
|
||||
|
||||
layer_shell->display_destroy.notify = handle_display_destroy;
|
||||
wl_display_add_destroy_listener(display, &layer_shell->display_destroy);
|
||||
|
||||
return layer_shell;
|
||||
}
|
||||
|
||||
void wlr_layer_shell_destroy(struct wlr_layer_shell *layer_shell) {
|
||||
if (!layer_shell) {
|
||||
return;
|
||||
}
|
||||
struct wl_resource *client, *tmp;
|
||||
wl_resource_for_each_safe(client, tmp, &layer_shell->client_resources) {
|
||||
wl_resource_destroy(client);
|
||||
}
|
||||
wl_list_remove(&layer_shell->display_destroy.link);
|
||||
wl_global_destroy(layer_shell->wl_global);
|
||||
free(layer_shell);
|
||||
}
|
||||
Loading…
Reference in new issue