mirror of
https://github.com/swaywm/sway.git
synced 2024-09-12 05:47:19 +00:00
421 lines
13 KiB
C
421 lines
13 KiB
C
#define _XOPEN_SOURCE 500
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#include <assert.h>
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#include <sys/stat.h>
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#include <sys/wait.h>
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#include <wayland-client.h>
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#include <wayland-cursor.h>
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#include "log.h"
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#include "list.h"
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#include "swaynagbar/nagbar.h"
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#include "swaynagbar/render.h"
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#include "wlr-layer-shell-unstable-v1-client-protocol.h"
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static void nop() {
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// Intentionally left blank
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}
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static bool terminal_execute(char *terminal, char *command) {
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char fname[] = "/tmp/swaynagbarXXXXXX";
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FILE *tmp= fdopen(mkstemp(fname), "w");
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if (!tmp) {
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wlr_log(WLR_ERROR, "Failed to create temp script");
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return false;
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}
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wlr_log(WLR_DEBUG, "Created temp script: %s", fname);
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fprintf(tmp, "#!/bin/sh\nrm %s\n%s", fname, command);
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fclose(tmp);
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chmod(fname, S_IRUSR | S_IWUSR | S_IXUSR);
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char cmd[strlen(terminal) + strlen(" -e ") + strlen(fname) + 1];
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sprintf(cmd, "%s -e %s", terminal, fname);
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execl("/bin/sh", "/bin/sh", "-c", cmd, NULL);
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return true;
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}
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static void nagbar_button_execute(struct sway_nagbar *nagbar,
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struct sway_nagbar_button *button) {
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wlr_log(WLR_DEBUG, "Executing [%s]: %s", button->text, button->action);
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if (button->type == NAGBAR_ACTION_DISMISS) {
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nagbar->run_display = false;
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} else if (button->type == NAGBAR_ACTION_EXPAND) {
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nagbar->details.visible = !nagbar->details.visible;
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render_frame(nagbar);
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} else {
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if (fork() == 0) {
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// Child process. Will be used to prevent zombie processes
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setsid();
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if (fork() == 0) {
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// Child of the child. Will be reparented to the init process
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char *terminal = getenv("TERMINAL");
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if (terminal && strlen(terminal)) {
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wlr_log(WLR_DEBUG, "Found $TERMINAL: %s", terminal);
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if (!terminal_execute(terminal, button->action)) {
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nagbar_destroy(nagbar);
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exit(EXIT_FAILURE);
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}
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} else {
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wlr_log(WLR_DEBUG, "$TERMINAL not found. Running directly");
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execl("/bin/sh", "/bin/sh", "-c", button->action, NULL);
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}
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}
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exit(EXIT_SUCCESS);
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}
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}
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wait(0);
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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 sway_nagbar *nagbar = data;
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nagbar->width = width;
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nagbar->height = height;
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zwlr_layer_surface_v1_ack_configure(surface, serial);
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render_frame(nagbar);
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}
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static void layer_surface_closed(void *data,
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struct zwlr_layer_surface_v1 *surface) {
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struct sway_nagbar *nagbar = data;
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nagbar_destroy(nagbar);
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}
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static 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 sway_nagbar *nagbar = data;
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struct sway_nagbar_pointer *pointer = &nagbar->pointer;
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wl_surface_set_buffer_scale(pointer->cursor_surface, nagbar->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 / nagbar->scale,
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pointer->cursor_image->hotspot_y / nagbar->scale);
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wl_surface_commit(pointer->cursor_surface);
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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 sway_nagbar *nagbar = data;
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nagbar->pointer.x = wl_fixed_to_int(surface_x);
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nagbar->pointer.y = wl_fixed_to_int(surface_y);
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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 sway_nagbar *nagbar = data;
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if (state != WL_POINTER_BUTTON_STATE_PRESSED) {
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return;
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}
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double x = nagbar->pointer.x * nagbar->scale;
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double y = nagbar->pointer.y * nagbar->scale;
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for (int i = 0; i < nagbar->buttons->length; i++) {
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struct sway_nagbar_button *nagbutton = nagbar->buttons->items[i];
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if (x >= nagbutton->x
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&& y >= nagbutton->y
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&& x < nagbutton->x + nagbutton->width
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&& y < nagbutton->y + nagbutton->height) {
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nagbar_button_execute(nagbar, nagbutton);
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return;
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}
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}
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if (nagbar->details.visible &&
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nagbar->details.total_lines != nagbar->details.visible_lines) {
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struct sway_nagbar_button button_up = nagbar->details.button_up;
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if (x >= button_up.x
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&& y >= button_up.y
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&& x < button_up.x + button_up.width
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&& y < button_up.y + button_up.height
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&& nagbar->details.offset > 0) {
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nagbar->details.offset--;
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render_frame(nagbar);
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return;
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}
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struct sway_nagbar_button button_down = nagbar->details.button_down;
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int bot = nagbar->details.total_lines - nagbar->details.visible_lines;
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if (x >= button_down.x
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&& y >= button_down.y
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&& x < button_down.x + button_down.width
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&& y < button_down.y + button_down.height
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&& nagbar->details.offset < bot) {
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nagbar->details.offset++;
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render_frame(nagbar);
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return;
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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 sway_nagbar *nagbar = data;
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if (!nagbar->details.visible
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|| nagbar->pointer.x < nagbar->details.x
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|| nagbar->pointer.y < nagbar->details.y
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|| nagbar->pointer.x >= nagbar->details.x + nagbar->details.width
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|| nagbar->pointer.y >= nagbar->details.y + nagbar->details.height
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|| nagbar->details.total_lines == nagbar->details.visible_lines) {
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return;
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}
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int direction = wl_fixed_to_int(value);
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int bot = nagbar->details.total_lines - nagbar->details.visible_lines;
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if (direction < 0 && nagbar->details.offset > 0) {
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nagbar->details.offset--;
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} else if (direction > 0 && nagbar->details.offset < bot) {
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nagbar->details.offset++;
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}
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render_frame(nagbar);
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}
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static struct wl_pointer_listener pointer_listener = {
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.enter = wl_pointer_enter,
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.leave = nop,
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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 = nop,
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.axis_source = nop,
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.axis_stop = nop,
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.axis_discrete = nop,
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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 sway_nagbar *nagbar = data;
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if ((caps & WL_SEAT_CAPABILITY_POINTER)) {
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nagbar->pointer.pointer = wl_seat_get_pointer(wl_seat);
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wl_pointer_add_listener(nagbar->pointer.pointer, &pointer_listener,
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nagbar);
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}
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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 = nop,
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};
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static void output_scale(void *data, struct wl_output *output,
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int32_t factor) {
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struct sway_nagbar *nagbar = data;
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nagbar->scale = factor;
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render_frame(nagbar);
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}
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static struct wl_output_listener output_listener = {
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.geometry = nop,
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.mode = nop,
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.done = nop,
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.scale = output_scale,
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};
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struct output_state {
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struct wl_output *wl_output;
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uint32_t wl_name;
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struct zxdg_output_v1 *xdg_output;
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struct sway_nagbar *nagbar;
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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 output_state *state = data;
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char *outname = state->nagbar->output.name;
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wlr_log(WLR_DEBUG, "Checking against output %s for %s", name, outname);
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if ((!outname && !state->nagbar->output.wl_output)
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|| (name && outname && strcmp(name, outname) == 0)) {
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wlr_log(WLR_DEBUG, "Using output %s", name);
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state->nagbar->output.wl_output = state->wl_output;
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state->nagbar->output.wl_name = state->wl_name;
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wl_output_add_listener(state->nagbar->output.wl_output,
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&output_listener, state->nagbar);
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wl_display_roundtrip(state->nagbar->display);
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zxdg_output_v1_destroy(state->xdg_output);
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} else {
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zxdg_output_v1_destroy(state->xdg_output);
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wl_output_destroy(state->wl_output);
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}
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state->nagbar->querying_outputs--;
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free(state);
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}
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static struct zxdg_output_v1_listener xdg_output_listener = {
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.logical_position = nop,
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.logical_size = nop,
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.done = nop,
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.name = xdg_output_handle_name,
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.description = nop,
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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 sway_nagbar *nagbar = data;
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if (strcmp(interface, wl_compositor_interface.name) == 0) {
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nagbar->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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nagbar->seat = wl_registry_bind(registry, name, &wl_seat_interface, 1);
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wl_seat_add_listener(nagbar->seat, &seat_listener, nagbar);
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} else if (strcmp(interface, wl_shm_interface.name) == 0) {
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nagbar->shm = wl_registry_bind(registry, name, &wl_shm_interface, 1);
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} else if (strcmp(interface, wl_output_interface.name) == 0) {
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if (!nagbar->output.wl_output && nagbar->xdg_output_manager) {
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nagbar->querying_outputs++;
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struct output_state *state =
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calloc(1, sizeof(struct output_state));
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state->nagbar = nagbar;
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state->wl_output = wl_registry_bind(registry, name,
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&wl_output_interface, 3);
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state->wl_name = name;
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state->xdg_output = zxdg_output_manager_v1_get_xdg_output(
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nagbar->xdg_output_manager, state->wl_output);
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zxdg_output_v1_add_listener(state->xdg_output,
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&xdg_output_listener, state);
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} else if (!nagbar->output.wl_output && !nagbar->xdg_output_manager) {
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wlr_log(WLR_ERROR, "Warning: zxdg_output_manager_v1 not supported."
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" Falling back to first detected output");
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nagbar->output.wl_output = wl_registry_bind(registry, name,
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&wl_output_interface, 3);
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nagbar->output.wl_name = name;
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wl_output_add_listener(nagbar->output.wl_output,
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&output_listener, nagbar);
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}
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} else if (strcmp(interface, zwlr_layer_shell_v1_interface.name) == 0) {
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nagbar->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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&& version >= ZXDG_OUTPUT_V1_NAME_SINCE_VERSION) {
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nagbar->xdg_output_manager = wl_registry_bind(registry, name,
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&zxdg_output_manager_v1_interface,
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ZXDG_OUTPUT_V1_NAME_SINCE_VERSION);
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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 sway_nagbar *nagbar = data;
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if (nagbar->output.wl_name == name) {
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nagbar->run_display = false;
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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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void nagbar_setup(struct sway_nagbar *nagbar) {
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nagbar->display = wl_display_connect(NULL);
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assert(nagbar->display);
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nagbar->scale = 1;
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struct wl_registry *registry = wl_display_get_registry(nagbar->display);
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wl_registry_add_listener(registry, ®istry_listener, nagbar);
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wl_display_roundtrip(nagbar->display);
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assert(nagbar->compositor && nagbar->layer_shell && nagbar->shm);
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while (nagbar->querying_outputs > 0) {
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wl_display_roundtrip(nagbar->display);
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}
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if (!nagbar->output.wl_output) {
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if (nagbar->output.name) {
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wlr_log(WLR_ERROR, "Output '%s' not found", nagbar->output.name);
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} else {
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wlr_log(WLR_ERROR, "No outputs detected");
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}
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nagbar_destroy(nagbar);
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exit(EXIT_FAILURE);
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}
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struct sway_nagbar_pointer *pointer = &nagbar->pointer;
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int scale = nagbar->scale < 1 ? 1 : nagbar->scale;
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pointer->cursor_theme = wl_cursor_theme_load(
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NULL, 24 * scale, nagbar->shm);
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assert(pointer->cursor_theme);
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struct wl_cursor *cursor =
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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(nagbar->compositor);
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assert(pointer->cursor_surface);
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nagbar->surface = wl_compositor_create_surface(nagbar->compositor);
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assert(nagbar->surface);
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nagbar->layer_surface = zwlr_layer_shell_v1_get_layer_surface(
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nagbar->layer_shell, nagbar->surface, nagbar->output.wl_output,
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ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM, "nagbar");
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assert(nagbar->layer_surface);
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zwlr_layer_surface_v1_add_listener(nagbar->layer_surface,
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&layer_surface_listener, nagbar);
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zwlr_layer_surface_v1_set_anchor(nagbar->layer_surface, nagbar->anchors);
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wl_registry_destroy(registry);
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}
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void nagbar_run(struct sway_nagbar *nagbar) {
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nagbar->run_display = true;
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render_frame(nagbar);
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while (nagbar->run_display && wl_display_dispatch(nagbar->display) != -1) {
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// This is intentionally left blank
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}
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}
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void nagbar_destroy(struct sway_nagbar *nagbar) {
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nagbar->run_display = false;
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free(nagbar->message);
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free(nagbar->font);
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while (nagbar->buttons->length) {
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struct sway_nagbar_button *button = nagbar->buttons->items[0];
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list_del(nagbar->buttons, 0);
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free(button->text);
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free(button->action);
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free(button);
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}
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list_free(nagbar->buttons);
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free(nagbar->details.message);
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free(nagbar->details.button_up.text);
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free(nagbar->details.button_down.text);
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if (nagbar->layer_surface) {
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zwlr_layer_surface_v1_destroy(nagbar->layer_surface);
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}
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if (nagbar->surface) {
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wl_surface_destroy(nagbar->surface);
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}
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if (nagbar->output.wl_output) {
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wl_output_destroy(nagbar->output.wl_output);
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}
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if (&nagbar->buffers[0]) {
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destroy_buffer(&nagbar->buffers[0]);
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}
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if (&nagbar->buffers[1]) {
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destroy_buffer(&nagbar->buffers[1]);
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}
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if (nagbar->compositor) {
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wl_compositor_destroy(nagbar->compositor);
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}
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if (nagbar->shm) {
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wl_shm_destroy(nagbar->shm);
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}
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if (nagbar->display) {
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wl_display_disconnect(nagbar->display);
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}
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}
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