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231 lines
6.4 KiB
231 lines
6.4 KiB
#include "wayland-swaylock-client-protocol.h"
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#include <xkbcommon/xkbcommon.h>
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#include <xkbcommon/xkbcommon-names.h>
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#include <security/pam_appl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <pwd.h>
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#include "client/window.h"
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#include "client/registry.h"
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#include "client/cairo.h"
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#include "log.h"
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list_t *surfaces;
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struct registry *registry;
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enum scaling_mode {
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SCALING_MODE_STRETCH,
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SCALING_MODE_FILL,
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SCALING_MODE_FIT,
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SCALING_MODE_CENTER,
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SCALING_MODE_TILE,
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};
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void sway_terminate(void) {
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int i;
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for (i = 0; i < surfaces->length; ++i) {
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struct window *window = surfaces->items[i];
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window_teardown(window);
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}
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list_free(surfaces);
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registry_teardown(registry);
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exit(EXIT_FAILURE);
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}
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char *password;
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struct pam_response *pam_reply;
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int function_conversation(int num_msg, const struct pam_message **msg,
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struct pam_response **resp, void *appdata_ptr) {
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*resp = pam_reply;
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return PAM_SUCCESS;
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}
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/**
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* password will be zeroed out.
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*/
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bool verify_password(char *password) {
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struct passwd *passwd = getpwuid(getuid());
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char *username = passwd->pw_name;
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const struct pam_conv local_conversation = { function_conversation, NULL };
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pam_handle_t *local_auth_handle = NULL;
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int pam_err;
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if ((pam_err = pam_start("swaylock", username, &local_conversation, &local_auth_handle)) != PAM_SUCCESS) {
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sway_abort("PAM returned %d\n", pam_err);
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}
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pam_reply = (struct pam_response *)malloc(sizeof(struct pam_response));
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pam_reply[0].resp = password;
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pam_reply[0].resp_retcode = 0;
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if ((pam_err = pam_authenticate(local_auth_handle, 0)) != PAM_SUCCESS) {
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memset(password, 0, strlen(password));
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return false;
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}
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if ((pam_err = pam_end(local_auth_handle, pam_err)) != PAM_SUCCESS) {
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memset(password, 0, strlen(password));
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return false;
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}
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memset(password, 0, strlen(password));
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return true;
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}
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void notify_key(enum wl_keyboard_key_state state, xkb_keysym_t sym, uint32_t code, uint32_t codepoint) {
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if (state == WL_KEYBOARD_KEY_STATE_PRESSED) {
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switch (sym) {
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case XKB_KEY_Return:
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if (verify_password(password)) {
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exit(0);
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}
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break;
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default:
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{
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int i = strlen(password);
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password[i] = (char)codepoint;
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password[i + 1] = '\0';
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break;
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}
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}
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}
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}
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int main(int argc, char **argv) {
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init_log(L_INFO);
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password = malloc(1024); // TODO: Let this grow
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password[0] = '\0';
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surfaces = create_list();
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registry = registry_poll();
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/*if (!registry->swaylock) {
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sway_abort("swaylock requires the compositor to support the swaylock extension.");
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}*/
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int i;
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for (i = 0; i < registry->outputs->length; ++i) {
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struct output_state *output = registry->outputs->items[i];
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struct window *window = window_setup(registry, output->width, output->height, true);
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if (!window) {
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sway_abort("Failed to create surfaces.");
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}
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//lock_set_lock_surface(registry->swaylock, output->output, window->surface);
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list_add(surfaces, window);
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}
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registry->input->notify = notify_key;
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GError *err = NULL;
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GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file(argv[1], &err); // TODO: Parse i3lock arguments
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if (!pixbuf) {
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sway_abort("Failed to load background image.");
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}
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cairo_surface_t *image = gdk_cairo_image_surface_create_from_pixbuf(pixbuf);
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g_object_unref(pixbuf);
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if (!image) {
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sway_abort("Failed to read background image.");
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}
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double width = cairo_image_surface_get_width(image);
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double height = cairo_image_surface_get_height(image);
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const char *scaling_mode_str = argv[2];
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enum scaling_mode scaling_mode = SCALING_MODE_STRETCH;
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if (strcmp(scaling_mode_str, "stretch") == 0) {
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scaling_mode = SCALING_MODE_STRETCH;
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} else if (strcmp(scaling_mode_str, "fill") == 0) {
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scaling_mode = SCALING_MODE_FILL;
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} else if (strcmp(scaling_mode_str, "fit") == 0) {
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scaling_mode = SCALING_MODE_FIT;
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} else if (strcmp(scaling_mode_str, "center") == 0) {
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scaling_mode = SCALING_MODE_CENTER;
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} else if (strcmp(scaling_mode_str, "tile") == 0) {
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scaling_mode = SCALING_MODE_TILE;
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} else {
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sway_abort("Unsupported scaling mode: %s", scaling_mode_str);
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}
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for (i = 0; i < surfaces->length; ++i) {
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struct window *window = surfaces->items[i];
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if (window_prerender(window) && window->cairo) {
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switch (scaling_mode) {
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case SCALING_MODE_STRETCH:
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cairo_scale(window->cairo,
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(double) window->width / width,
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(double) window->height / height);
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cairo_set_source_surface(window->cairo, image, 0, 0);
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break;
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case SCALING_MODE_FILL:
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{
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double window_ratio = (double) window->width / window->height;
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double bg_ratio = width / height;
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if (window_ratio > bg_ratio) {
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double scale = (double) window->width / width;
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cairo_scale(window->cairo, scale, scale);
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cairo_set_source_surface(window->cairo, image,
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0,
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(double) window->height/2 / scale - height/2);
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} else {
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double scale = (double) window->height / height;
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cairo_scale(window->cairo, scale, scale);
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cairo_set_source_surface(window->cairo, image,
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(double) window->width/2 / scale - width/2,
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0);
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}
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break;
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}
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case SCALING_MODE_FIT:
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{
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double window_ratio = (double) window->width / window->height;
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double bg_ratio = width / height;
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if (window_ratio > bg_ratio) {
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double scale = (double) window->height / height;
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cairo_scale(window->cairo, scale, scale);
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cairo_set_source_surface(window->cairo, image,
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(double) window->width/2 / scale - width/2,
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0);
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} else {
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double scale = (double) window->width / width;
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cairo_scale(window->cairo, scale, scale);
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cairo_set_source_surface(window->cairo, image,
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0,
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(double) window->height/2 / scale - height/2);
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}
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break;
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}
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case SCALING_MODE_CENTER:
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cairo_set_source_surface(window->cairo, image,
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(double) window->width/2 - width/2,
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(double) window->height/2 - height/2);
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break;
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case SCALING_MODE_TILE:
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{
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cairo_pattern_t *pattern = cairo_pattern_create_for_surface(image);
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cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT);
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cairo_set_source(window->cairo, pattern);
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break;
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}
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default:
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sway_abort("Scaling mode '%s' not implemented yet!", scaling_mode_str);
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}
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cairo_paint(window->cairo);
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window_render(window);
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}
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}
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cairo_surface_destroy(image);
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while (wl_display_dispatch(registry->display) != -1);
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for (i = 0; i < surfaces->length; ++i) {
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struct window *window = surfaces->items[i];
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window_teardown(window);
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}
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list_free(surfaces);
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registry_teardown(registry);
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return 0;
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}
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