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https://github.com/hyprwm/wlroots-hyprland.git
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Add wlr_layer_surface_configure
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parent
4a8c0c0784
commit
1628730b09
2 changed files with 95 additions and 2 deletions
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@ -7,6 +7,18 @@
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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 clients;
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@ -30,11 +42,14 @@ struct wlr_layer_client {
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};
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struct wlr_layer_surface_state {
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// Client
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uint32_t anchor;
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uint32_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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// Server
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uint32_t width, height;
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};
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struct wlr_layer_surface_configure {
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@ -76,4 +91,12 @@ struct wlr_layer_surface {
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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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#endif
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@ -151,6 +151,76 @@ static void layer_surface_resource_destroy(struct wl_resource *resource) {
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}
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}
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static bool wlr_layer_surface_state_changed(struct wlr_layer_surface *surface) {
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if (!surface->configured) {
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return false;
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}
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struct wlr_layer_surface_state *state;
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if (wl_list_empty(&surface->configure_list)) {
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state = &surface->current;
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} else {
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struct wlr_layer_surface_configure *configure =
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wl_container_of(surface->configure_list.prev, configure, link);
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state = &configure->state;
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}
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return !memcmp(state, &surface->pending,
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sizeof(struct wlr_layer_surface_state));
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}
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static void wlr_layer_surface_send_configure(void *user_data) {
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struct wlr_layer_surface *surface = user_data;
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surface->configure_idle = NULL;
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struct wlr_layer_surface_configure *configure =
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calloc(1, sizeof(struct wlr_layer_surface_configure));
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if (configure == NULL) {
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wl_client_post_no_memory(surface->client->client);
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return;
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}
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wl_list_insert(surface->configure_list.prev, &configure->link);
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configure->serial = surface->configure_next_serial;
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configure->state = surface->pending;
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zwlr_layer_surface_v1_send_configure(surface->resource,
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configure->serial, configure->state.width, configure->state.height);
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}
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static uint32_t wlr_layer_surface_schedule_configure(
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struct wlr_layer_surface *surface) {
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struct wl_display *display = wl_client_get_display(surface->client->client);
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struct wl_event_loop *loop = wl_display_get_event_loop(display);
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bool changed = wlr_layer_surface_state_changed(surface);
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if (surface->configure_idle != NULL) {
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if (changed) {
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// configure request already scheduled
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return surface->configure_next_serial;
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}
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// configure request not necessary anymore
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wl_event_source_remove(surface->configure_idle);
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surface->configure_idle = NULL;
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return 0;
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} else {
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if (!changed) {
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// configure request not necessary
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return 0;
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}
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surface->configure_next_serial = wl_display_next_serial(display);
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surface->configure_idle = wl_event_loop_add_idle(loop,
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wlr_layer_surface_send_configure, surface);
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return surface->configure_next_serial;
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}
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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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surface->pending.width = width;
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surface->pending.height = height;
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wlr_layer_surface_schedule_configure(surface);
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}
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static void handle_wlr_surface_committed(struct wlr_surface *wlr_surface,
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void *role_data) {
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struct wlr_layer_surface *surface = role_data;
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@ -163,8 +233,8 @@ static void handle_wlr_surface_committed(struct wlr_surface *wlr_surface,
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}
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if (!surface->added) {
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surface->added = true;
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wlr_signal_emit_safe(
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&surface->client->shell->events.new_surface, surface);
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wlr_signal_emit_safe(&surface->client->shell->events.new_surface,
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surface);
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}
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if (surface->configured && wlr_surface_has_buffer(surface->surface) &&
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!surface->mapped) {
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