mirror of
https://github.com/swaywm/sway.git
synced 2024-07-31 15:31:10 +00:00
4dba7c084a
Previously, when the bar was hidden, the height would be set to 0. This meant that if the bar was empty upon reshow, it would not render since the height was still 0, which made it seem there was a problem. Now, the height is not reset, but the width is, to indicate upon reshow that the layer surface needed reconfiguring.
687 lines
19 KiB
C
687 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/event_loop.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 "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
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}
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struct zxdg_output_v1_listener xdg_output_listener = {
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.logical_position = xdg_output_handle_logical_position,
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.logical_size = xdg_output_handle_logical_size,
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.done = xdg_output_handle_done,
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.name = xdg_output_handle_name,
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.description = xdg_output_handle_description,
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};
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static void add_xdg_output(struct swaybar_output *output) {
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if (output->xdg_output != NULL) {
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return;
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}
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assert(output->bar->xdg_output_manager != NULL);
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output->xdg_output = zxdg_output_manager_v1_get_xdg_output(
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output->bar->xdg_output_manager, output->output);
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zxdg_output_v1_add_listener(output->xdg_output, &xdg_output_listener,
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output);
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}
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static void handle_global(void *data, struct wl_registry *registry,
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uint32_t name, const char *interface, uint32_t version) {
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struct swaybar *bar = data;
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if (strcmp(interface, wl_compositor_interface.name) == 0) {
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bar->compositor = wl_registry_bind(registry, name,
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&wl_compositor_interface, 3);
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} else if (strcmp(interface, wl_seat_interface.name) == 0) {
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bar->seat = wl_registry_bind(registry, name,
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&wl_seat_interface, 3);
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wl_seat_add_listener(bar->seat, &seat_listener, bar);
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} else if (strcmp(interface, wl_shm_interface.name) == 0) {
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bar->shm = wl_registry_bind(registry, name,
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&wl_shm_interface, 1);
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} else if (strcmp(interface, wl_output_interface.name) == 0) {
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struct swaybar_output *output =
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calloc(1, sizeof(struct swaybar_output));
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output->bar = bar;
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output->output = wl_registry_bind(registry, name,
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&wl_output_interface, 3);
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wl_output_add_listener(output->output, &output_listener, output);
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output->scale = 1;
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output->wl_name = name;
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wl_list_init(&output->workspaces);
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wl_list_init(&output->hotspots);
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wl_list_init(&output->link);
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if (bar->xdg_output_manager != NULL) {
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add_xdg_output(output);
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}
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} else if (strcmp(interface, zwlr_layer_shell_v1_interface.name) == 0) {
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bar->layer_shell = wl_registry_bind(
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registry, name, &zwlr_layer_shell_v1_interface, 1);
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} else if (strcmp(interface, zxdg_output_manager_v1_interface.name) == 0) {
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bar->xdg_output_manager = wl_registry_bind(registry, name,
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&zxdg_output_manager_v1_interface, 2);
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}
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}
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static void handle_global_remove(void *data, struct wl_registry *registry,
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uint32_t name) {
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struct swaybar *bar = data;
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struct swaybar_output *output, *tmp;
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wl_list_for_each_safe(output, tmp, &bar->outputs, link) {
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if (output->wl_name == name) {
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swaybar_output_free(output);
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break;
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}
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}
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}
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static const struct wl_registry_listener registry_listener = {
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.global = handle_global,
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.global_remove = handle_global_remove,
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};
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static void set_bar_dirty(struct swaybar *bar) {
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struct swaybar_output *output;
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wl_list_for_each(output, &bar->outputs, link) {
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set_output_dirty(output);
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}
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}
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bool bar_setup(struct swaybar *bar, const char *socket_path) {
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bar_init(bar);
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init_event_loop();
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bar->ipc_socketfd = ipc_open_socket(socket_path);
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bar->ipc_event_socketfd = ipc_open_socket(socket_path);
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if (!ipc_initialize(bar)) {
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return false;
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}
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if (bar->config->status_command) {
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bar->status = status_line_init(bar->config->status_command);
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}
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bar->display = wl_display_connect(NULL);
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assert(bar->display);
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struct wl_registry *registry = wl_display_get_registry(bar->display);
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wl_registry_add_listener(registry, ®istry_listener, bar);
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wl_display_roundtrip(bar->display);
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assert(bar->compositor && bar->layer_shell && bar->shm &&
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bar->xdg_output_manager);
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struct swaybar_output *output;
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wl_list_for_each(output, &bar->outputs, link) {
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add_xdg_output(output);
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}
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wl_display_roundtrip(bar->display);
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struct swaybar_pointer *pointer = &bar->pointer;
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int max_scale = 1;
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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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pointer->cursor_theme =
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wl_cursor_theme_load(NULL, 24 * max_scale, bar->shm);
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assert(pointer->cursor_theme);
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struct wl_cursor *cursor;
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cursor = wl_cursor_theme_get_cursor(pointer->cursor_theme, "left_ptr");
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assert(cursor);
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pointer->cursor_image = cursor->images[0];
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pointer->cursor_surface = wl_compositor_create_surface(bar->compositor);
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assert(pointer->cursor_surface);
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if (bar->config->workspace_buttons) {
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if (ipc_get_workspaces(bar)) {
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set_bar_dirty(bar);
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}
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}
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return true;
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}
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static void display_in(int fd, short mask, void *data) {
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struct swaybar *bar = data;
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if (wl_display_dispatch(bar->display) == -1) {
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bar_teardown(bar);
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exit(0);
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}
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}
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static void ipc_in(int fd, short mask, void *data) {
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struct swaybar *bar = data;
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if (handle_ipc_readable(bar)) {
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set_bar_dirty(bar);
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}
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}
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static void status_in(int fd, short mask, void *data) {
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struct swaybar *bar = data;
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if (mask & (POLLHUP | POLLERR)) {
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status_error(bar->status, "[error reading from status command]");
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set_bar_dirty(bar);
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remove_event(fd);
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} else if (status_handle_readable(bar->status)) {
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set_bar_dirty(bar);
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}
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}
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void bar_run(struct swaybar *bar) {
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add_event(wl_display_get_fd(bar->display), POLLIN, display_in, bar);
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add_event(bar->ipc_event_socketfd, POLLIN, ipc_in, bar);
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if (bar->status) {
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add_event(bar->status->read_fd, POLLIN, status_in, bar);
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}
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while (1) {
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wl_display_flush(bar->display);
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event_loop_poll();
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}
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}
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static void free_outputs(struct wl_list *list) {
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struct swaybar_output *output, *tmp;
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wl_list_for_each_safe(output, tmp, list, link) {
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swaybar_output_free(output);
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}
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}
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|
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void bar_teardown(struct swaybar *bar) {
|
|
free_outputs(&bar->outputs);
|
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if (bar->config) {
|
|
free_config(bar->config);
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}
|
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close(bar->ipc_event_socketfd);
|
|
close(bar->ipc_socketfd);
|
|
if (bar->status) {
|
|
status_line_free(bar->status);
|
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}
|
|
free(bar->id);
|
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free(bar->mode);
|
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}
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