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670 lines
18 KiB
670 lines
18 KiB
#define _POSIX_C_SOURCE 200809L
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#include <assert.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <strings.h>
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#include <wayland-server.h>
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#include <wlr/types/wlr_output_layout.h>
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#include <wlr/types/wlr_wl_shell.h>
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#include "cairo.h"
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#include "pango.h"
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#include "sway/config.h"
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#include "sway/input/input-manager.h"
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#include "sway/input/seat.h"
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#include "sway/ipc-server.h"
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#include "sway/output.h"
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#include "sway/server.h"
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#include "sway/tree/arrange.h"
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#include "sway/tree/layout.h"
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#include "sway/tree/view.h"
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#include "sway/tree/workspace.h"
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#include "log.h"
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static list_t *bfs_queue;
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static list_t *get_bfs_queue() {
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if (!bfs_queue) {
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bfs_queue = create_list();
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if (!bfs_queue) {
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wlr_log(L_ERROR, "could not allocate list for bfs queue");
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return NULL;
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}
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}
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bfs_queue->length = 0;
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return bfs_queue;
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}
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const char *container_type_to_str(enum sway_container_type type) {
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switch (type) {
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case C_ROOT:
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return "C_ROOT";
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case C_OUTPUT:
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return "C_OUTPUT";
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case C_WORKSPACE:
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return "C_WORKSPACE";
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case C_CONTAINER:
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return "C_CONTAINER";
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case C_VIEW:
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return "C_VIEW";
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default:
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return "C_UNKNOWN";
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}
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}
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void container_create_notify(struct sway_container *container) {
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// TODO send ipc event type based on the container type
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wl_signal_emit(&root_container.sway_root->events.new_container, container);
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if (container->type == C_VIEW || container->type == C_CONTAINER) {
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ipc_event_window(container, "new");
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}
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}
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static void container_close_notify(struct sway_container *container) {
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if (container == NULL) {
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return;
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}
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// TODO send ipc event type based on the container type
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if (container->type == C_VIEW || container->type == C_WORKSPACE) {
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ipc_event_window(container, "close");
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}
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}
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struct sway_container *container_create(enum sway_container_type type) {
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// next id starts at 1 because 0 is assigned to root_container in layout.c
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static size_t next_id = 1;
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struct sway_container *c = calloc(1, sizeof(struct sway_container));
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if (!c) {
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return NULL;
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}
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c->id = next_id++;
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c->layout = L_NONE;
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c->type = type;
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c->alpha = 1.0f;
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if (type != C_VIEW) {
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c->children = create_list();
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}
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wl_signal_init(&c->events.destroy);
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wl_signal_init(&c->events.reparent);
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return c;
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}
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static void _container_destroy(struct sway_container *cont) {
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if (cont == NULL) {
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return;
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}
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wl_signal_emit(&cont->events.destroy, cont);
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container_close_notify(cont);
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struct sway_container *parent = cont->parent;
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if (cont->children != NULL && cont->children->length) {
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// remove children until there are no more, container_destroy calls
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// container_remove_child, which removes child from this container
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while (cont->children != NULL && cont->children->length > 0) {
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struct sway_container *child = cont->children->items[0];
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container_remove_child(child);
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_container_destroy(child);
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}
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}
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if (cont->marks) {
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list_foreach(cont->marks, free);
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list_free(cont->marks);
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}
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if (parent) {
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parent = container_remove_child(cont);
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}
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if (cont->name) {
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free(cont->name);
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}
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if (cont->title_focused) {
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// If one is set then all of these are set
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wlr_texture_destroy(cont->title_focused);
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wlr_texture_destroy(cont->title_focused_inactive);
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wlr_texture_destroy(cont->title_unfocused);
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wlr_texture_destroy(cont->title_urgent);
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}
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list_free(cont->children);
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cont->children = NULL;
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free(cont);
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}
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static struct sway_container *container_output_destroy(
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struct sway_container *output) {
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if (!sway_assert(output, "cannot destroy null output")) {
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return NULL;
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}
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if (output->children->length > 0) {
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// TODO save workspaces when there are no outputs.
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// TODO also check if there will ever be no outputs except for exiting
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// program
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if (root_container.children->length > 1) {
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int p = root_container.children->items[0] == output;
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// Move workspace from this output to another output
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while (output->children->length) {
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struct sway_container *child = output->children->items[0];
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container_remove_child(child);
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container_add_child(root_container.children->items[p], child);
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}
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container_sort_workspaces(root_container.children->items[p]);
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arrange_output(root_container.children->items[p]);
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}
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}
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wl_list_remove(&output->sway_output->destroy.link);
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wl_list_remove(&output->sway_output->mode.link);
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wl_list_remove(&output->sway_output->transform.link);
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wl_list_remove(&output->sway_output->scale.link);
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wl_list_remove(&output->sway_output->damage_destroy.link);
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wl_list_remove(&output->sway_output->damage_frame.link);
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// clear the wlr_output reference to this container
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output->sway_output->wlr_output->data = NULL;
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wlr_log(L_DEBUG, "OUTPUT: Destroying output '%s'", output->name);
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_container_destroy(output);
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return &root_container;
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}
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static struct sway_container *container_workspace_destroy(
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struct sway_container *workspace) {
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if (!sway_assert(workspace, "cannot destroy null workspace")) {
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return NULL;
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}
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// Do not destroy this if it's the last workspace on this output
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struct sway_container *output = container_parent(workspace, C_OUTPUT);
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if (output && output->children->length == 1) {
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return NULL;
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}
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struct sway_container *parent = workspace->parent;
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if (workspace->children->length == 0) {
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// destroy the WS if there are no children (TODO check for floating)
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wlr_log(L_DEBUG, "destroying workspace '%s'", workspace->name);
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ipc_event_workspace(workspace, NULL, "empty");
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} else {
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// Move children to a different workspace on this output
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struct sway_container *new_workspace = NULL;
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// TODO move floating
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for (int i = 0; i < output->children->length; i++) {
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if (output->children->items[i] != workspace) {
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new_workspace = output->children->items[i];
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break;
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}
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}
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wlr_log(L_DEBUG, "moving children to different workspace '%s' -> '%s'",
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workspace->name, new_workspace->name);
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for (int i = 0; i < workspace->children->length; i++) {
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container_move_to(workspace->children->items[i], new_workspace);
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}
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}
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free(workspace->sway_workspace);
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_container_destroy(workspace);
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output_damage_whole(output->sway_output);
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return parent;
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}
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static void container_root_finish(struct sway_container *con) {
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wlr_log(L_ERROR, "TODO: destroy the root container");
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}
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bool container_reap_empty(struct sway_container *con) {
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switch (con->type) {
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case C_ROOT:
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case C_OUTPUT:
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// dont reap these
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break;
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case C_WORKSPACE:
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if (!workspace_is_visible(con) && con->children->length == 0) {
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wlr_log(L_DEBUG, "Destroying workspace via reaper");
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container_workspace_destroy(con);
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return true;
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}
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break;
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case C_CONTAINER:
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if (con->children->length == 0) {
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_container_destroy(con);
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return true;
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}
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case C_VIEW:
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break;
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case C_TYPES:
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sway_assert(false, "container_reap_empty called on an invalid "
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"container");
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break;
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}
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return false;
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}
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struct sway_container *container_reap_empty_recursive(
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struct sway_container *con) {
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while (con) {
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struct sway_container *next = con->parent;
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if (!container_reap_empty(con)) {
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break;
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}
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con = next;
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}
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return con;
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}
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struct sway_container *container_flatten(struct sway_container *container) {
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while (container->type == C_CONTAINER && container->children->length == 1) {
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struct sway_container *child = container->children->items[0];
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struct sway_container *parent = container->parent;
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container_replace_child(container, child);
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container_destroy(container);
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container = parent;
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}
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return container;
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}
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struct sway_container *container_destroy(struct sway_container *con) {
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if (con == NULL) {
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return NULL;
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}
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struct sway_container *parent = con->parent;
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switch (con->type) {
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case C_ROOT:
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container_root_finish(con);
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break;
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case C_OUTPUT:
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// dont try to reap the root after this
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container_output_destroy(con);
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break;
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case C_WORKSPACE:
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// dont try to reap the output after this
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container_workspace_destroy(con);
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break;
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case C_CONTAINER:
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if (con->children->length) {
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for (int i = 0; i < con->children->length; ++i) {
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struct sway_container *child = con->children->items[0];
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container_remove_child(child);
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container_add_child(parent, child);
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}
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}
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_container_destroy(con);
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break;
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case C_VIEW:
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_container_destroy(con);
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break;
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case C_TYPES:
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wlr_log(L_ERROR, "container_destroy called on an invalid "
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"container");
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break;
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}
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return container_reap_empty_recursive(parent);
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}
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static void container_close_func(struct sway_container *container, void *data) {
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if (container->type == C_VIEW) {
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view_close(container->sway_view);
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}
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}
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struct sway_container *container_close(struct sway_container *con) {
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if (!sway_assert(con != NULL,
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"container_close called with a NULL container")) {
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return NULL;
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}
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struct sway_container *parent = con->parent;
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if (con->type == C_VIEW) {
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view_close(con->sway_view);
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} else {
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container_for_each_descendant_dfs(con, container_close_func, NULL);
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}
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return parent;
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}
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struct sway_container *container_view_create(struct sway_container *sibling,
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struct sway_view *sway_view) {
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if (!sway_assert(sibling,
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"container_view_create called with NULL sibling/parent")) {
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return NULL;
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}
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const char *title = view_get_title(sway_view);
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struct sway_container *swayc = container_create(C_VIEW);
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wlr_log(L_DEBUG, "Adding new view %p:%s to container %p %d %s",
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swayc, title, sibling, sibling ? sibling->type : 0, sibling->name);
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// Setup values
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swayc->sway_view = sway_view;
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container_update_title(swayc, title ? title : "");
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swayc->width = 0;
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swayc->height = 0;
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if (sibling->type == C_WORKSPACE) {
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// Case of focused workspace, just create as child of it
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container_add_child(sibling, swayc);
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} else {
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// Regular case, create as sibling of current container
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container_add_sibling(sibling, swayc);
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}
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container_create_notify(swayc);
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return swayc;
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}
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void container_descendants(struct sway_container *root,
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enum sway_container_type type,
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void (*func)(struct sway_container *item, void *data), void *data) {
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if (!root->children || !root->children->length) {
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return;
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}
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for (int i = 0; i < root->children->length; ++i) {
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struct sway_container *item = root->children->items[i];
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if (item->type == type) {
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func(item, data);
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}
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container_descendants(item, type, func, data);
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}
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}
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struct sway_container *container_find(struct sway_container *container,
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bool (*test)(struct sway_container *view, void *data), void *data) {
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if (!container->children) {
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return NULL;
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}
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// TODO: floating windows
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for (int i = 0; i < container->children->length; ++i) {
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struct sway_container *child = container->children->items[i];
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if (test(child, data)) {
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return child;
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} else {
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struct sway_container *res = container_find(child, test, data);
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if (res) {
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return res;
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}
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}
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}
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return NULL;
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}
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struct sway_container *container_parent(struct sway_container *container,
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enum sway_container_type type) {
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if (!sway_assert(container, "container is NULL")) {
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return NULL;
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}
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if (!sway_assert(type < C_TYPES && type >= C_ROOT, "invalid type")) {
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return NULL;
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}
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do {
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container = container->parent;
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} while (container && container->type != type);
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return container;
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}
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struct sway_container *container_at(struct sway_container *parent,
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double lx, double ly,
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struct wlr_surface **surface, double *sx, double *sy) {
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list_t *queue = get_bfs_queue();
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if (!queue) {
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return NULL;
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}
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list_add(queue, parent);
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struct sway_container *swayc = NULL;
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while (queue->length) {
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swayc = queue->items[0];
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list_del(queue, 0);
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if (swayc->type == C_VIEW) {
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struct sway_view *sview = swayc->sway_view;
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struct sway_container *soutput = container_parent(swayc, C_OUTPUT);
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struct wlr_box *output_box =
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wlr_output_layout_get_box(
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root_container.sway_root->output_layout,
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soutput->sway_output->wlr_output);
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double ox = lx - output_box->x;
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double oy = ly - output_box->y;
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double view_sx = ox - sview->x;
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double view_sy = oy - sview->y;
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double _sx, _sy;
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struct wlr_surface *_surface;
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switch (sview->type) {
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case SWAY_VIEW_XWAYLAND:
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_surface = wlr_surface_surface_at(sview->surface,
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view_sx, view_sy, &_sx, &_sy);
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break;
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case SWAY_VIEW_WL_SHELL:
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_surface = wlr_wl_shell_surface_surface_at(
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sview->wlr_wl_shell_surface,
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view_sx, view_sy, &_sx, &_sy);
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break;
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case SWAY_VIEW_XDG_SHELL_V6:
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// the top left corner of the sway container is the
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// coordinate of the top left corner of the window geometry
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view_sx += sview->wlr_xdg_surface_v6->geometry.x;
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view_sy += sview->wlr_xdg_surface_v6->geometry.y;
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_surface = wlr_xdg_surface_v6_surface_at(
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sview->wlr_xdg_surface_v6,
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view_sx, view_sy, &_sx, &_sy);
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break;
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}
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if (_surface) {
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*sx = _sx;
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*sy = _sy;
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*surface = _surface;
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return swayc;
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}
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// Check the view's decorations
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struct wlr_box swayc_box = {
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.x = swayc->x,
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.y = swayc->y,
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.width = swayc->width,
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.height = swayc->height,
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};
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if (wlr_box_contains_point(&swayc_box, ox, oy)) {
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return swayc;
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}
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} else {
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list_cat(queue, swayc->children);
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}
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}
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return NULL;
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}
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void container_for_each_descendant_dfs(struct sway_container *container,
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void (*f)(struct sway_container *container, void *data),
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void *data) {
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if (container) {
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if (container->children) {
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for (int i = 0; i < container->children->length; ++i) {
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struct sway_container *child =
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container->children->items[i];
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container_for_each_descendant_dfs(child, f, data);
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}
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}
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f(container, data);
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}
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}
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void container_for_each_descendant_bfs(struct sway_container *con,
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void (*f)(struct sway_container *con, void *data), void *data) {
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list_t *queue = get_bfs_queue();
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if (!queue) {
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return;
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}
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if (queue == NULL) {
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wlr_log(L_ERROR, "could not allocate list");
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return;
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}
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list_add(queue, con);
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struct sway_container *current = NULL;
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while (queue->length) {
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current = queue->items[0];
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list_del(queue, 0);
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f(current, data);
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// TODO floating containers
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list_cat(queue, current->children);
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}
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}
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|
|
|
bool container_has_anscestor(struct sway_container *descendant,
|
|
struct sway_container *anscestor) {
|
|
while (descendant->type != C_ROOT) {
|
|
descendant = descendant->parent;
|
|
if (descendant == anscestor) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static bool find_child_func(struct sway_container *con, void *data) {
|
|
struct sway_container *child = data;
|
|
return con == child;
|
|
}
|
|
|
|
bool container_has_child(struct sway_container *con,
|
|
struct sway_container *child) {
|
|
if (con == NULL || con->type == C_VIEW || con->children->length == 0) {
|
|
return false;
|
|
}
|
|
return container_find(con, find_child_func, child);
|
|
}
|
|
|
|
void container_damage_whole(struct sway_container *con) {
|
|
struct sway_container *output = con;
|
|
if (output->type != C_OUTPUT) {
|
|
output = container_parent(output, C_OUTPUT);
|
|
}
|
|
output_damage_whole_container(output->sway_output, con);
|
|
}
|
|
|
|
static void update_title_texture(struct sway_container *con,
|
|
struct wlr_texture **texture, struct border_colors *class) {
|
|
if (!sway_assert(con->type == C_CONTAINER || con->type == C_VIEW,
|
|
"Unexpected type %s", container_type_to_str(con->type))) {
|
|
return;
|
|
}
|
|
if (!con->width) {
|
|
return;
|
|
}
|
|
struct sway_container *output = container_parent(con, C_OUTPUT);
|
|
if (!output) {
|
|
return;
|
|
}
|
|
if (*texture) {
|
|
wlr_texture_destroy(*texture);
|
|
}
|
|
if (!con->name) {
|
|
return;
|
|
}
|
|
|
|
int width = con->width * output->sway_output->wlr_output->scale;
|
|
int height = config->font_height * output->sway_output->wlr_output->scale;
|
|
|
|
cairo_surface_t *surface = cairo_image_surface_create(
|
|
CAIRO_FORMAT_ARGB32, width, height);
|
|
cairo_t *cairo = cairo_create(surface);
|
|
cairo_set_source_rgba(cairo, class->background[0], class->background[1],
|
|
class->background[2], class->background[3]);
|
|
cairo_paint(cairo);
|
|
PangoContext *pango = pango_cairo_create_context(cairo);
|
|
cairo_set_antialias(cairo, CAIRO_ANTIALIAS_BEST);
|
|
cairo_set_source_rgba(cairo, class->text[0], class->text[1],
|
|
class->text[2], class->text[3]);
|
|
cairo_move_to(cairo, 0, 0);
|
|
|
|
pango_printf(cairo, config->font, output->sway_output->wlr_output->scale,
|
|
false, "%s", con->name);
|
|
|
|
cairo_surface_flush(surface);
|
|
unsigned char *data = cairo_image_surface_get_data(surface);
|
|
int stride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, width);
|
|
struct wlr_renderer *renderer = wlr_backend_get_renderer(
|
|
output->sway_output->wlr_output->backend);
|
|
*texture = wlr_texture_from_pixels(
|
|
renderer, WL_SHM_FORMAT_ARGB8888, stride, width, height, data);
|
|
cairo_surface_destroy(surface);
|
|
g_object_unref(pango);
|
|
cairo_destroy(cairo);
|
|
}
|
|
|
|
void container_update_title_textures(struct sway_container *container) {
|
|
update_title_texture(container, &container->title_focused,
|
|
&config->border_colors.focused);
|
|
update_title_texture(container, &container->title_focused_inactive,
|
|
&config->border_colors.focused_inactive);
|
|
update_title_texture(container, &container->title_unfocused,
|
|
&config->border_colors.unfocused);
|
|
update_title_texture(container, &container->title_urgent,
|
|
&config->border_colors.urgent);
|
|
}
|
|
|
|
void container_calculate_title_height(struct sway_container *container) {
|
|
if (!container->name) {
|
|
container->title_height = 0;
|
|
return;
|
|
}
|
|
cairo_t *cairo = cairo_create(NULL);
|
|
int height;
|
|
get_text_size(cairo, config->font, NULL, &height, 1, false,
|
|
"%s", container->name);
|
|
cairo_destroy(cairo);
|
|
container->title_height = height;
|
|
}
|
|
|
|
static void container_notify_child_title_changed(
|
|
struct sway_container *container) {
|
|
if (!container || container->type != C_CONTAINER) {
|
|
return;
|
|
}
|
|
if (container->layout != L_TABBED && container->layout != L_STACKED) {
|
|
return;
|
|
}
|
|
if (container->name) {
|
|
free(container->name);
|
|
}
|
|
// TODO: iterate children and concatenate their titles
|
|
container->name = strdup("");
|
|
container_calculate_title_height(container);
|
|
container_update_title_textures(container);
|
|
container_notify_child_title_changed(container->parent);
|
|
}
|
|
|
|
void container_update_title(struct sway_container *container,
|
|
const char *new_title) {
|
|
if (container->name && strcmp(container->name, new_title) == 0) {
|
|
return;
|
|
}
|
|
if (container->name) {
|
|
free(container->name);
|
|
}
|
|
container->name = strdup(new_title);
|
|
container_calculate_title_height(container);
|
|
container_update_title_textures(container);
|
|
container_notify_child_title_changed(container->parent);
|
|
|
|
size_t prev_max_height = config->font_height;
|
|
config_find_font_height(false);
|
|
if (config->font_height != prev_max_height) {
|
|
arrange_root();
|
|
}
|
|
}
|