mirror of
https://github.com/swaywm/sway.git
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4056c09e13
* The loop functions are now prefixed with `loop_`. * It is now easy to add timers to the loop. * Timers are implemented using pollfd and timerfd, rather than manually checking them when any other event happens to arrive.
690 lines
19 KiB
C
690 lines
19 KiB
C
#define _XOPEN_SOURCE 500
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#include <assert.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <poll.h>
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#include <signal.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include <wayland-client.h>
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#include <wayland-cursor.h>
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#include <wlr/util/log.h>
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#ifdef __FreeBSD__
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#include <dev/evdev/input-event-codes.h>
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#else
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#include <linux/input-event-codes.h>
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#endif
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#include "swaybar/bar.h"
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#include "swaybar/config.h"
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#include "swaybar/i3bar.h"
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#include "swaybar/ipc.h"
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#include "swaybar/status_line.h"
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#include "swaybar/render.h"
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#include "ipc-client.h"
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#include "list.h"
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#include "log.h"
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#include "loop.h"
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#include "pool-buffer.h"
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#include "wlr-layer-shell-unstable-v1-client-protocol.h"
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#include "xdg-output-unstable-v1-client-protocol.h"
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static void bar_init(struct swaybar *bar) {
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bar->config = init_config();
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bar->visible = true;
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wl_list_init(&bar->outputs);
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}
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void free_hotspots(struct wl_list *list) {
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struct swaybar_hotspot *hotspot, *tmp;
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wl_list_for_each_safe(hotspot, tmp, list, link) {
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wl_list_remove(&hotspot->link);
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if (hotspot->destroy) {
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hotspot->destroy(hotspot->data);
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}
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free(hotspot);
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}
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}
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void free_workspaces(struct wl_list *list) {
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struct swaybar_workspace *ws, *tmp;
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wl_list_for_each_safe(ws, tmp, list, link) {
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wl_list_remove(&ws->link);
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free(ws->name);
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free(ws);
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}
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}
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static void swaybar_output_free(struct swaybar_output *output) {
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if (!output) {
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return;
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}
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wlr_log(WLR_DEBUG, "Removing output %s", output->name);
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if (output->layer_surface != NULL) {
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zwlr_layer_surface_v1_destroy(output->layer_surface);
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}
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if (output->surface != NULL) {
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wl_surface_destroy(output->surface);
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}
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zxdg_output_v1_destroy(output->xdg_output);
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wl_output_destroy(output->output);
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destroy_buffer(&output->buffers[0]);
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destroy_buffer(&output->buffers[1]);
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free_hotspots(&output->hotspots);
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free_workspaces(&output->workspaces);
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wl_list_remove(&output->link);
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free(output->name);
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free(output);
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}
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static void set_output_dirty(struct swaybar_output *output) {
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if (output->frame_scheduled) {
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output->dirty = true;
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} else if (output->surface) {
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render_frame(output);
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}
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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 width, uint32_t height) {
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struct swaybar_output *output = data;
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output->width = width;
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output->height = height;
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zwlr_layer_surface_v1_ack_configure(surface, serial);
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set_output_dirty(output);
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}
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static void layer_surface_closed(void *_output,
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struct zwlr_layer_surface_v1 *surface) {
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struct swaybar_output *output = _output;
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swaybar_output_free(output);
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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 wl_pointer_enter(void *data, struct wl_pointer *wl_pointer,
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uint32_t serial, struct wl_surface *surface,
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wl_fixed_t surface_x, wl_fixed_t surface_y) {
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struct swaybar *bar = data;
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struct swaybar_pointer *pointer = &bar->pointer;
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struct swaybar_output *output;
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wl_list_for_each(output, &bar->outputs, link) {
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if (output->surface == surface) {
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pointer->current = output;
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break;
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}
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}
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int max_scale = 1;
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struct swaybar_output *_output;
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wl_list_for_each(_output, &bar->outputs, link) {
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if (_output->scale > max_scale) {
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max_scale = _output->scale;
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}
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}
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wl_surface_set_buffer_scale(pointer->cursor_surface, max_scale);
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wl_surface_attach(pointer->cursor_surface,
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wl_cursor_image_get_buffer(pointer->cursor_image), 0, 0);
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wl_pointer_set_cursor(wl_pointer, serial, pointer->cursor_surface,
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pointer->cursor_image->hotspot_x / max_scale,
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pointer->cursor_image->hotspot_y / max_scale);
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wl_surface_commit(pointer->cursor_surface);
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}
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static void wl_pointer_leave(void *data, struct wl_pointer *wl_pointer,
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uint32_t serial, struct wl_surface *surface) {
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struct swaybar *bar = data;
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bar->pointer.current = NULL;
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}
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static void wl_pointer_motion(void *data, struct wl_pointer *wl_pointer,
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uint32_t time, wl_fixed_t surface_x, wl_fixed_t surface_y) {
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struct swaybar *bar = data;
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bar->pointer.x = wl_fixed_to_int(surface_x);
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bar->pointer.y = wl_fixed_to_int(surface_y);
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}
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static bool check_bindings(struct swaybar *bar, uint32_t x11_button,
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uint32_t state) {
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bool released = state == WL_POINTER_BUTTON_STATE_RELEASED;
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for (int i = 0; i < bar->config->bindings->length; i++) {
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struct swaybar_binding *binding = bar->config->bindings->items[i];
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if (binding->button == x11_button && binding->release == released) {
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ipc_execute_binding(bar, binding);
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return true;
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}
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}
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return false;
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}
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static void wl_pointer_button(void *data, struct wl_pointer *wl_pointer,
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uint32_t serial, uint32_t time, uint32_t button, uint32_t state) {
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struct swaybar *bar = data;
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struct swaybar_pointer *pointer = &bar->pointer;
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struct swaybar_output *output = pointer->current;
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if (!sway_assert(output, "button with no active output")) {
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return;
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}
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if (check_bindings(bar, wl_button_to_x11_button(button), state)) {
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return;
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}
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if (state != WL_POINTER_BUTTON_STATE_PRESSED) {
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return;
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}
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struct swaybar_hotspot *hotspot;
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wl_list_for_each(hotspot, &output->hotspots, link) {
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double x = pointer->x * output->scale;
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double y = pointer->y * output->scale;
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if (x >= hotspot->x
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&& y >= hotspot->y
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&& x < hotspot->x + hotspot->width
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&& y < hotspot->y + hotspot->height) {
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if (HOTSPOT_IGNORE == hotspot->callback(output, pointer->x, pointer->y,
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wl_button_to_x11_button(button), hotspot->data)) {
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return;
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}
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}
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}
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}
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static void wl_pointer_axis(void *data, struct wl_pointer *wl_pointer,
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uint32_t time, uint32_t axis, wl_fixed_t value) {
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struct swaybar *bar = data;
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struct swaybar_pointer *pointer = &bar->pointer;
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struct swaybar_output *output = bar->pointer.current;
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if (!sway_assert(output, "axis with no active output")) {
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return;
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}
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// If there is a button press binding, execute it, skip default behavior,
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// and check button release bindings
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if (check_bindings(bar, wl_axis_to_x11_button(axis, value),
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WL_POINTER_BUTTON_STATE_PRESSED)) {
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check_bindings(bar, wl_axis_to_x11_button(axis, value),
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WL_POINTER_BUTTON_STATE_RELEASED);
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return;
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}
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struct swaybar_hotspot *hotspot;
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wl_list_for_each(hotspot, &output->hotspots, link) {
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double x = pointer->x * output->scale;
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double y = pointer->y * output->scale;
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if (x >= hotspot->x
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&& y >= hotspot->y
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&& x < hotspot->x + hotspot->width
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&& y < hotspot->y + hotspot->height) {
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if (HOTSPOT_IGNORE == hotspot->callback(
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output, pointer->x, pointer->y,
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wl_axis_to_x11_button(axis, value), hotspot->data)) {
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return;
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}
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}
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}
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double amt = wl_fixed_to_double(value);
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if (amt == 0.0) {
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return;
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}
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// last doesn't actually need initialization,
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// but gcc (7.3.1) is too dumb to figure it out
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struct swaybar_workspace *first = NULL;
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struct swaybar_workspace *active = NULL;
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struct swaybar_workspace *last = NULL;
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struct swaybar_workspace *iter;
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wl_list_for_each(iter, &output->workspaces, link) {
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if (!first) {
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first = iter;
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}
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if (iter->visible) {
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active = iter;
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}
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last = iter;
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}
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if (!sway_assert(active, "axis with null workspace")) {
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return;
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}
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struct swaybar_workspace *new;
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if (amt > 0.0) {
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if (active == first) {
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if (!bar->config->wrap_scroll) {
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return;
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}
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new = last;
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}
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new = wl_container_of(active->link.prev, new, link);
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} else {
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if (active == last) {
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if (!bar->config->wrap_scroll) {
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return;
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}
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new = first;
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}
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new = wl_container_of(active->link.next, new, link);
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}
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ipc_send_workspace_command(bar, new->name);
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// Check button release bindings
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check_bindings(bar, wl_axis_to_x11_button(axis, value),
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WL_POINTER_BUTTON_STATE_RELEASED);
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}
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static void wl_pointer_frame(void *data, struct wl_pointer *wl_pointer) {
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// Who cares
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}
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static void wl_pointer_axis_source(void *data, struct wl_pointer *wl_pointer,
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uint32_t axis_source) {
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// Who cares
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}
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static void wl_pointer_axis_stop(void *data, struct wl_pointer *wl_pointer,
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uint32_t time, uint32_t axis) {
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// Who cares
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}
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static void wl_pointer_axis_discrete(void *data, struct wl_pointer *wl_pointer,
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uint32_t axis, int32_t discrete) {
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// Who cares
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}
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struct wl_pointer_listener pointer_listener = {
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.enter = wl_pointer_enter,
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.leave = wl_pointer_leave,
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.motion = wl_pointer_motion,
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.button = wl_pointer_button,
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.axis = wl_pointer_axis,
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.frame = wl_pointer_frame,
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.axis_source = wl_pointer_axis_source,
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.axis_stop = wl_pointer_axis_stop,
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.axis_discrete = wl_pointer_axis_discrete,
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};
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static void seat_handle_capabilities(void *data, struct wl_seat *wl_seat,
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enum wl_seat_capability caps) {
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struct swaybar *bar = data;
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if (bar->pointer.pointer != NULL) {
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wl_pointer_release(bar->pointer.pointer);
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bar->pointer.pointer = NULL;
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}
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if ((caps & WL_SEAT_CAPABILITY_POINTER)) {
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bar->pointer.pointer = wl_seat_get_pointer(wl_seat);
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wl_pointer_add_listener(bar->pointer.pointer, &pointer_listener, bar);
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}
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}
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static void seat_handle_name(void *data, struct wl_seat *wl_seat,
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const char *name) {
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// Who cares
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}
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const struct wl_seat_listener seat_listener = {
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.capabilities = seat_handle_capabilities,
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.name = seat_handle_name,
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};
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static void add_layer_surface(struct swaybar_output *output) {
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if (output->layer_surface) {
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return;
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}
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struct swaybar *bar = output->bar;
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struct swaybar_config *config = bar->config;
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bool hidden = strcmp(config->mode, "hide") == 0;
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output->layer_surface = zwlr_layer_shell_v1_get_layer_surface(
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bar->layer_shell, output->surface, output->output,
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hidden ? ZWLR_LAYER_SHELL_V1_LAYER_TOP :
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ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM, "panel");
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assert(output->layer_surface);
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zwlr_layer_surface_v1_add_listener(output->layer_surface,
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&layer_surface_listener, output);
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zwlr_layer_surface_v1_set_anchor(output->layer_surface, config->position);
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if (hidden) {
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zwlr_layer_surface_v1_set_exclusive_zone(output->layer_surface, -1);
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}
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}
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static void destroy_layer_surface(struct swaybar_output *output) {
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if (!output->layer_surface) {
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return;
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}
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zwlr_layer_surface_v1_destroy(output->layer_surface);
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wl_surface_attach(output->surface, NULL, 0, 0); // detach buffer
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output->layer_surface = NULL;
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output->width = 0;
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output->frame_scheduled = false;
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}
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bool determine_bar_visibility(struct swaybar *bar, bool moving_layer) {
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struct swaybar_config *config = bar->config;
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bool visible = !(strcmp(config->mode, "invisible") == 0 ||
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(strcmp(config->mode, config->hidden_state) == 0 // both "hide"
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&& !bar->visible_by_modifier && !bar->visible_by_urgency));
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struct swaybar_output *output;
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if (visible == bar->visible) {
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if (visible && moving_layer) {
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// need to destroy layer surface to move to a different layer
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wl_list_for_each(output, &bar->outputs, link) {
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destroy_layer_surface(output);
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add_layer_surface(output);
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}
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}
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} else {
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bar->visible = visible;
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wl_list_for_each(output, &bar->outputs, link) {
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if (visible) {
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add_layer_surface(output);
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} else {
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destroy_layer_surface(output);
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}
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}
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wlr_log(WLR_DEBUG, "Sending %s signal to status command",
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visible ? "cont" : "stop");
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kill(bar->status->pid,
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visible ? bar->status->cont_signal : bar->status->stop_signal);
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}
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return visible;
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}
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static bool bar_uses_output(struct swaybar *bar, const char *name) {
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if (bar->config->all_outputs) {
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return true;
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}
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struct config_output *coutput;
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wl_list_for_each(coutput, &bar->config->outputs, link) {
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if (strcmp(coutput->name, name) == 0) {
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return true;
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}
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}
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return false;
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}
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static void output_geometry(void *data, struct wl_output *wl_output, int32_t x,
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int32_t y, int32_t width_mm, int32_t height_mm, int32_t subpixel,
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const char *make, const char *model, int32_t transform) {
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struct swaybar_output *output = data;
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output->subpixel = subpixel;
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}
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static void output_mode(void *data, struct wl_output *wl_output, uint32_t flags,
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int32_t width, int32_t height, int32_t refresh) {
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// Who cares
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}
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static void output_done(void *data, struct wl_output *wl_output) {
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struct swaybar_output *output = data;
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set_output_dirty(output);
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}
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static void output_scale(void *data, struct wl_output *wl_output,
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int32_t factor) {
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struct swaybar_output *output = data;
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output->scale = factor;
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}
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struct wl_output_listener output_listener = {
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.geometry = output_geometry,
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.mode = output_mode,
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.done = output_done,
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.scale = output_scale,
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};
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static void xdg_output_handle_logical_position(void *data,
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struct zxdg_output_v1 *xdg_output, int32_t x, int32_t y) {
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// Who cares
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}
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static void xdg_output_handle_logical_size(void *data,
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struct zxdg_output_v1 *xdg_output, int32_t width, int32_t height) {
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// Who cares
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}
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static void xdg_output_handle_done(void *data,
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struct zxdg_output_v1 *xdg_output) {
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struct swaybar_output *output = data;
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struct swaybar *bar = output->bar;
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assert(output->name != NULL);
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if (!bar_uses_output(bar, output->name)) {
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swaybar_output_free(output);
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return;
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}
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if (wl_list_empty(&output->link)) {
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wl_list_remove(&output->link);
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wl_list_insert(&bar->outputs, &output->link);
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output->surface = wl_compositor_create_surface(bar->compositor);
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assert(output->surface);
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if (bar->visible) {
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add_layer_surface(output);
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}
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}
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}
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static void xdg_output_handle_name(void *data,
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struct zxdg_output_v1 *xdg_output, const char *name) {
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struct swaybar_output *output = data;
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free(output->name);
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output->name = strdup(name);
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}
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static void xdg_output_handle_description(void *data,
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struct zxdg_output_v1 *xdg_output, const char *description) {
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// Who cares
|
|
}
|
|
|
|
struct zxdg_output_v1_listener xdg_output_listener = {
|
|
.logical_position = xdg_output_handle_logical_position,
|
|
.logical_size = xdg_output_handle_logical_size,
|
|
.done = xdg_output_handle_done,
|
|
.name = xdg_output_handle_name,
|
|
.description = xdg_output_handle_description,
|
|
};
|
|
|
|
static void add_xdg_output(struct swaybar_output *output) {
|
|
if (output->xdg_output != NULL) {
|
|
return;
|
|
}
|
|
assert(output->bar->xdg_output_manager != NULL);
|
|
output->xdg_output = zxdg_output_manager_v1_get_xdg_output(
|
|
output->bar->xdg_output_manager, output->output);
|
|
zxdg_output_v1_add_listener(output->xdg_output, &xdg_output_listener,
|
|
output);
|
|
}
|
|
|
|
static void handle_global(void *data, struct wl_registry *registry,
|
|
uint32_t name, const char *interface, uint32_t version) {
|
|
struct swaybar *bar = data;
|
|
if (strcmp(interface, wl_compositor_interface.name) == 0) {
|
|
bar->compositor = wl_registry_bind(registry, name,
|
|
&wl_compositor_interface, 3);
|
|
} else if (strcmp(interface, wl_seat_interface.name) == 0) {
|
|
bar->seat = wl_registry_bind(registry, name,
|
|
&wl_seat_interface, 3);
|
|
wl_seat_add_listener(bar->seat, &seat_listener, bar);
|
|
} else if (strcmp(interface, wl_shm_interface.name) == 0) {
|
|
bar->shm = wl_registry_bind(registry, name,
|
|
&wl_shm_interface, 1);
|
|
} else if (strcmp(interface, wl_output_interface.name) == 0) {
|
|
struct swaybar_output *output =
|
|
calloc(1, sizeof(struct swaybar_output));
|
|
output->bar = bar;
|
|
output->output = wl_registry_bind(registry, name,
|
|
&wl_output_interface, 3);
|
|
wl_output_add_listener(output->output, &output_listener, output);
|
|
output->scale = 1;
|
|
output->wl_name = name;
|
|
wl_list_init(&output->workspaces);
|
|
wl_list_init(&output->hotspots);
|
|
wl_list_init(&output->link);
|
|
if (bar->xdg_output_manager != NULL) {
|
|
add_xdg_output(output);
|
|
}
|
|
} else if (strcmp(interface, zwlr_layer_shell_v1_interface.name) == 0) {
|
|
bar->layer_shell = wl_registry_bind(
|
|
registry, name, &zwlr_layer_shell_v1_interface, 1);
|
|
} else if (strcmp(interface, zxdg_output_manager_v1_interface.name) == 0) {
|
|
bar->xdg_output_manager = wl_registry_bind(registry, name,
|
|
&zxdg_output_manager_v1_interface, 2);
|
|
}
|
|
}
|
|
|
|
static void handle_global_remove(void *data, struct wl_registry *registry,
|
|
uint32_t name) {
|
|
struct swaybar *bar = data;
|
|
struct swaybar_output *output, *tmp;
|
|
wl_list_for_each_safe(output, tmp, &bar->outputs, link) {
|
|
if (output->wl_name == name) {
|
|
swaybar_output_free(output);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static const struct wl_registry_listener registry_listener = {
|
|
.global = handle_global,
|
|
.global_remove = handle_global_remove,
|
|
};
|
|
|
|
static void set_bar_dirty(struct swaybar *bar) {
|
|
struct swaybar_output *output;
|
|
wl_list_for_each(output, &bar->outputs, link) {
|
|
set_output_dirty(output);
|
|
}
|
|
}
|
|
|
|
bool bar_setup(struct swaybar *bar, const char *socket_path) {
|
|
bar_init(bar);
|
|
bar->eventloop = loop_create();
|
|
|
|
bar->ipc_socketfd = ipc_open_socket(socket_path);
|
|
bar->ipc_event_socketfd = ipc_open_socket(socket_path);
|
|
if (!ipc_initialize(bar)) {
|
|
return false;
|
|
}
|
|
if (bar->config->status_command) {
|
|
bar->status = status_line_init(bar->config->status_command);
|
|
bar->status->bar = bar;
|
|
}
|
|
|
|
bar->display = wl_display_connect(NULL);
|
|
assert(bar->display);
|
|
|
|
struct wl_registry *registry = wl_display_get_registry(bar->display);
|
|
wl_registry_add_listener(registry, ®istry_listener, bar);
|
|
wl_display_roundtrip(bar->display);
|
|
assert(bar->compositor && bar->layer_shell && bar->shm &&
|
|
bar->xdg_output_manager);
|
|
|
|
struct swaybar_output *output;
|
|
wl_list_for_each(output, &bar->outputs, link) {
|
|
add_xdg_output(output);
|
|
}
|
|
wl_display_roundtrip(bar->display);
|
|
|
|
struct swaybar_pointer *pointer = &bar->pointer;
|
|
|
|
int max_scale = 1;
|
|
wl_list_for_each(output, &bar->outputs, link) {
|
|
if (output->scale > max_scale) {
|
|
max_scale = output->scale;
|
|
}
|
|
}
|
|
|
|
pointer->cursor_theme =
|
|
wl_cursor_theme_load(NULL, 24 * max_scale, bar->shm);
|
|
assert(pointer->cursor_theme);
|
|
struct wl_cursor *cursor;
|
|
cursor = wl_cursor_theme_get_cursor(pointer->cursor_theme, "left_ptr");
|
|
assert(cursor);
|
|
pointer->cursor_image = cursor->images[0];
|
|
pointer->cursor_surface = wl_compositor_create_surface(bar->compositor);
|
|
assert(pointer->cursor_surface);
|
|
|
|
if (bar->config->workspace_buttons) {
|
|
if (ipc_get_workspaces(bar)) {
|
|
set_bar_dirty(bar);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static void display_in(int fd, short mask, void *data) {
|
|
struct swaybar *bar = data;
|
|
if (wl_display_dispatch(bar->display) == -1) {
|
|
bar_teardown(bar);
|
|
exit(0);
|
|
}
|
|
}
|
|
|
|
static void ipc_in(int fd, short mask, void *data) {
|
|
struct swaybar *bar = data;
|
|
if (handle_ipc_readable(bar)) {
|
|
set_bar_dirty(bar);
|
|
}
|
|
}
|
|
|
|
static void status_in(int fd, short mask, void *data) {
|
|
struct swaybar *bar = data;
|
|
if (mask & (POLLHUP | POLLERR)) {
|
|
status_error(bar->status, "[error reading from status command]");
|
|
set_bar_dirty(bar);
|
|
loop_remove_event(bar->eventloop, bar->status_event);
|
|
} else if (status_handle_readable(bar->status)) {
|
|
set_bar_dirty(bar);
|
|
}
|
|
}
|
|
|
|
void bar_run(struct swaybar *bar) {
|
|
loop_add_fd(bar->eventloop, wl_display_get_fd(bar->display), POLLIN,
|
|
display_in, bar);
|
|
loop_add_fd(bar->eventloop, bar->ipc_event_socketfd, POLLIN, ipc_in, bar);
|
|
if (bar->status) {
|
|
bar->status_event = loop_add_fd(
|
|
bar->eventloop, bar->status->read_fd, POLLIN, status_in, bar);
|
|
}
|
|
while (1) {
|
|
wl_display_flush(bar->display);
|
|
loop_poll(bar->eventloop);
|
|
}
|
|
}
|
|
|
|
static void free_outputs(struct wl_list *list) {
|
|
struct swaybar_output *output, *tmp;
|
|
wl_list_for_each_safe(output, tmp, list, link) {
|
|
swaybar_output_free(output);
|
|
}
|
|
}
|
|
|
|
void bar_teardown(struct swaybar *bar) {
|
|
free_outputs(&bar->outputs);
|
|
if (bar->config) {
|
|
free_config(bar->config);
|
|
}
|
|
close(bar->ipc_event_socketfd);
|
|
close(bar->ipc_socketfd);
|
|
if (bar->status) {
|
|
status_line_free(bar->status);
|
|
}
|
|
free(bar->id);
|
|
free(bar->mode);
|
|
}
|