The new upstream is https://github.com/swaywm/swaybg This commit also refactors our use of gdk-pixbuf a bit, since the only remaining reverse dependency is swaybar tray support.master
Drew DeVault
6 years ago
committed by
Simon Ser
parent
f62c755a9f
commit
236ca63419
@ -1,542 +0,0 @@
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#define _POSIX_C_SOURCE 200809L
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#include <assert.h>
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#include <ctype.h>
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#include <getopt.h>
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#include <stdbool.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 <strings.h>
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#include <wayland-client.h>
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#include "background-image.h"
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#include "cairo.h"
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#include "log.h"
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#include "pool-buffer.h"
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#include "util.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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struct swaybg_state {
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struct wl_display *display;
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struct wl_compositor *compositor;
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struct wl_shm *shm;
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struct zwlr_layer_shell_v1 *layer_shell;
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struct zxdg_output_manager_v1 *xdg_output_manager;
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struct wl_list configs; // struct swaybg_output_config::link
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struct wl_list outputs; // struct swaybg_output::link
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bool run_display;
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};
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struct swaybg_output_config {
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char *output;
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cairo_surface_t *image;
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enum background_mode mode;
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uint32_t color;
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struct wl_list link;
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};
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struct swaybg_output {
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uint32_t wl_name;
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struct wl_output *wl_output;
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struct zxdg_output_v1 *xdg_output;
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char *name;
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char *identifier;
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struct swaybg_state *state;
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struct swaybg_output_config *config;
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struct wl_surface *surface;
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struct zwlr_layer_surface_v1 *layer_surface;
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struct pool_buffer buffers[2];
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struct pool_buffer *current_buffer;
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uint32_t width, height;
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int32_t scale;
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struct wl_list link;
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};
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bool is_valid_color(const char *color) {
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int len = strlen(color);
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if (len != 7 || color[0] != '#') {
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sway_log(SWAY_ERROR, "%s is not a valid color for swaybg. "
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"Color should be specified as #rrggbb (no alpha).", color);
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return false;
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}
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int i;
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for (i = 1; i < len; ++i) {
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if (!isxdigit(color[i])) {
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return false;
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}
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}
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return true;
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}
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static void render_frame(struct swaybg_output *output) {
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int buffer_width = output->width * output->scale,
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buffer_height = output->height * output->scale;
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output->current_buffer = get_next_buffer(output->state->shm,
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output->buffers, buffer_width, buffer_height);
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if (!output->current_buffer) {
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return;
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}
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cairo_t *cairo = output->current_buffer->cairo;
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cairo_save(cairo);
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cairo_set_operator(cairo, CAIRO_OPERATOR_CLEAR);
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cairo_paint(cairo);
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cairo_restore(cairo);
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if (output->config->mode == BACKGROUND_MODE_SOLID_COLOR) {
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cairo_set_source_u32(cairo, output->config->color);
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cairo_paint(cairo);
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} else {
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if (output->config->color) {
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cairo_set_source_u32(cairo, output->config->color);
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cairo_paint(cairo);
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}
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render_background_image(cairo, output->config->image,
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output->config->mode, buffer_width, buffer_height);
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}
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wl_surface_set_buffer_scale(output->surface, output->scale);
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wl_surface_attach(output->surface, output->current_buffer->buffer, 0, 0);
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wl_surface_damage_buffer(output->surface, 0, 0, INT32_MAX, INT32_MAX);
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wl_surface_commit(output->surface);
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}
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static void destroy_swaybg_output_config(struct swaybg_output_config *config) {
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if (!config) {
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return;
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}
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wl_list_remove(&config->link);
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free(config->output);
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free(config);
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}
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static void destroy_swaybg_output(struct swaybg_output *output) {
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if (!output) {
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return;
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}
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wl_list_remove(&output->link);
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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->wl_output);
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destroy_buffer(&output->buffers[0]);
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destroy_buffer(&output->buffers[1]);
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free(output->name);
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free(output->identifier);
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free(output);
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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 swaybg_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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render_frame(output);
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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 swaybg_output *output = data;
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sway_log(SWAY_DEBUG, "Destroying output %s (%s)",
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output->name, output->identifier);
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destroy_swaybg_output(output);
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}
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static const 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 output_geometry(void *data, struct wl_output *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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// Who cares
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}
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static void output_mode(void *data, struct wl_output *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 *output) {
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// Who cares
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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 scale) {
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struct swaybg_output *output = data;
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output->scale = scale;
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if (output->state->run_display && output->width > 0 && output->height > 0) {
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render_frame(output);
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}
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}
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static const 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 find_config(struct swaybg_output *output, const char *name) {
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struct swaybg_output_config *config = NULL;
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wl_list_for_each(config, &output->state->configs, link) {
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if (strcmp(config->output, name) == 0) {
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output->config = config;
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return;
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} else if (!output->config && strcmp(config->output, "*") == 0) {
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output->config = config;
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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 swaybg_output *output = data;
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output->name = strdup(name);
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// If description was sent first, the config may already be populated. If
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// there is an identifier config set, keep it.
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if (!output->config || strcmp(output->config->output, "*") == 0) {
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find_config(output, name);
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}
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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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struct swaybg_output *output = data;
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// wlroots currently sets the description to `make model serial (name)`
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// If this changes in the future, this will need to be modified.
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char *paren = strrchr(description, '(');
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if (paren) {
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size_t length = paren - description;
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output->identifier = malloc(length);
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if (!output->identifier) {
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sway_log(SWAY_ERROR, "Failed to allocate output identifier");
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return;
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}
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strncpy(output->identifier, description, length);
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output->identifier[length - 1] = '\0';
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find_config(output, output->identifier);
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}
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}
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static void create_layer_surface(struct swaybg_output *output) {
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output->surface = wl_compositor_create_surface(output->state->compositor);
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assert(output->surface);
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// Empty input region
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struct wl_region *input_region =
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wl_compositor_create_region(output->state->compositor);
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assert(input_region);
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wl_surface_set_input_region(output->surface, input_region);
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wl_region_destroy(input_region);
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output->layer_surface = zwlr_layer_shell_v1_get_layer_surface(
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output->state->layer_shell, output->surface, output->wl_output,
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ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND, "wallpaper");
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assert(output->layer_surface);
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zwlr_layer_surface_v1_set_size(output->layer_surface, 0, 0);
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zwlr_layer_surface_v1_set_anchor(output->layer_surface,
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ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP |
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ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT |
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ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM |
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ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT);
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zwlr_layer_surface_v1_set_exclusive_zone(output->layer_surface, -1);
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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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wl_surface_commit(output->surface);
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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 swaybg_output *output = data;
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if (!output->config) {
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sway_log(SWAY_DEBUG, "Could not find config for output %s (%s)",
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output->name, output->identifier);
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destroy_swaybg_output(output);
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} else if (!output->layer_surface) {
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sway_log(SWAY_DEBUG, "Found config %s for output %s (%s)",
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output->config->output, output->name, output->identifier);
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create_layer_surface(output);
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}
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}
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static const 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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.name = xdg_output_handle_name,
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.description = xdg_output_handle_description,
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.done = xdg_output_handle_done,
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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 swaybg_state *state = data;
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if (strcmp(interface, wl_compositor_interface.name) == 0) {
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state->compositor =
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wl_registry_bind(registry, name, &wl_compositor_interface, 4);
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} else if (strcmp(interface, wl_shm_interface.name) == 0) {
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state->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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struct swaybg_output *output = calloc(1, sizeof(struct swaybg_output));
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output->state = state;
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output->wl_name = name;
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output->wl_output =
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wl_registry_bind(registry, name, &wl_output_interface, 3);
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wl_output_add_listener(output->wl_output, &output_listener, output);
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wl_list_insert(&state->outputs, &output->link);
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if (state->run_display) {
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output->xdg_output = zxdg_output_manager_v1_get_xdg_output(
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state->xdg_output_manager, output->wl_output);
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zxdg_output_v1_add_listener(output->xdg_output,
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&xdg_output_listener, output);
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}
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} else if (strcmp(interface, zwlr_layer_shell_v1_interface.name) == 0) {
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state->layer_shell =
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wl_registry_bind(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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state->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 swaybg_state *state = data;
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struct swaybg_output *output, *tmp;
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wl_list_for_each_safe(output, tmp, &state->outputs, link) {
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if (output->wl_name == name) {
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sway_log(SWAY_DEBUG, "Destroying output %s (%s)",
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output->name, output->identifier);
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destroy_swaybg_output(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 bool store_swaybg_output_config(struct swaybg_state *state,
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struct swaybg_output_config *config) {
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struct swaybg_output_config *oc = NULL;
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wl_list_for_each(oc, &state->configs, link) {
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if (strcmp(config->output, oc->output) == 0) {
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// Merge on top
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if (config->image) {
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free(oc->image);
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oc->image = config->image;
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config->image = NULL;
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}
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if (config->color) {
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oc->color = config->color;
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}
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if (config->mode != BACKGROUND_MODE_INVALID) {
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oc->mode = config->mode;
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}
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return false;
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}
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}
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// New config, just add it
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wl_list_insert(&state->configs, &config->link);
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return true;
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}
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static void parse_command_line(int argc, char **argv,
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struct swaybg_state *state) {
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static struct option long_options[] = {
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{"color", required_argument, NULL, 'c'},
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{"help", no_argument, NULL, 'h'},
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{"image", required_argument, NULL, 'i'},
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{"mode", required_argument, NULL, 'm'},
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{"output", required_argument, NULL, 'o'},
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{"version", no_argument, NULL, 'v'},
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{0, 0, 0, 0}
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};
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const char *usage =
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"Usage: swaybg <options...>\n"
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"\n"
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" -c, --color Set the background color.\n"
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" -h, --help Show help message and quit.\n"
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" -i, --image Set the image to display.\n"
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" -m, --mode Set the mode to use for the image.\n"
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" -o, --output Set the output to operate on or * for all.\n"
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" -v, --version Show the version number and quit.\n"
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"\n"
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"Background Modes:\n"
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" stretch, fit, fill, center, tile, or solid_color\n";
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struct swaybg_output_config *config = NULL;
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int c;
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while (1) {
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int option_index = 0;
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c = getopt_long(argc, argv, "c:hi:m:o:v", long_options, &option_index);
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if (c == -1) {
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break;
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}
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switch (c) {
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case 'c': // color
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if (!config) {
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goto no_output;
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}
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if (!is_valid_color(optarg)) {
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sway_log(SWAY_ERROR, "Invalid color: %s", optarg);
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continue;
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}
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config->color = parse_color(optarg);
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break;
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case 'i': // image
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if (!config) {
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goto no_output;
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}
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free(config->image);
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config->image = load_background_image(optarg);
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if (!config->image) {
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sway_log(SWAY_ERROR, "Failed to load image: %s", optarg);
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}
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break;
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case 'm': // mode
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if (!config) {
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goto no_output;
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}
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config->mode = parse_background_mode(optarg);
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if (config->mode == BACKGROUND_MODE_INVALID) {
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sway_log(SWAY_ERROR, "Invalid mode: %s", optarg);
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}
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break;
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case 'o': // output
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if (config && !store_swaybg_output_config(state, config)) {
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// Empty config or merged on top of an existing one
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destroy_swaybg_output_config(config);
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}
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config = calloc(sizeof(struct swaybg_output_config), 1);
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config->output = strdup(optarg);
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config->mode = BACKGROUND_MODE_INVALID;
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wl_list_init(&config->link); // init for safe removal
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break;
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case 'v': // version
|
||||
fprintf(stdout, "swaybg version " SWAY_VERSION "\n");
|
||||
exit(EXIT_SUCCESS);
|
||||
break;
|
||||
default:
|
||||
fprintf(c == 'h' ? stdout : stderr, "%s", usage);
|
||||
exit(c == 'h' ? EXIT_SUCCESS : EXIT_FAILURE);
|
||||
}
|
||||
}
|
||||
if (config && !store_swaybg_output_config(state, config)) {
|
||||
// Empty config or merged on top of an existing one
|
||||
destroy_swaybg_output_config(config);
|
||||
}
|
||||
|
||||
// Check for invalid options
|
||||
if (optind < argc) {
|
||||
config = NULL;
|
||||
struct swaybg_output_config *tmp = NULL;
|
||||
wl_list_for_each_safe(config, tmp, &state->configs, link) {
|
||||
destroy_swaybg_output_config(config);
|
||||
}
|
||||
// continue into empty list
|
||||
}
|
||||
if (wl_list_empty(&state->configs)) {
|
||||
fprintf(stderr, "%s", usage);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
// Set default mode and remove empties
|
||||
config = NULL;
|
||||
struct swaybg_output_config *tmp = NULL;
|
||||
wl_list_for_each_safe(config, tmp, &state->configs, link) {
|
||||
if (!config->image && !config->color) {
|
||||
destroy_swaybg_output_config(config);
|
||||
} else if (config->mode == BACKGROUND_MODE_INVALID) {
|
||||
config->mode = config->image
|
||||
? BACKGROUND_MODE_STRETCH
|
||||
: BACKGROUND_MODE_SOLID_COLOR;
|
||||
}
|
||||
}
|
||||
return;
|
||||
no_output:
|
||||
fprintf(stderr, "Cannot operate on NULL output config\n");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
int main(int argc, char **argv) {
|
||||
sway_log_init(SWAY_DEBUG, NULL);
|
||||
|
||||
struct swaybg_state state = {0};
|
||||
wl_list_init(&state.configs);
|
||||
wl_list_init(&state.outputs);
|
||||
|
||||
parse_command_line(argc, argv, &state);
|
||||
|
||||
state.display = wl_display_connect(NULL);
|
||||
if (!state.display) {
|
||||
sway_log(SWAY_ERROR, "Unable to connect to the compositor. "
|
||||
"If your compositor is running, check or set the "
|
||||
"WAYLAND_DISPLAY environment variable.");
|
||||
return 1;
|
||||
}
|
||||
|
||||
struct wl_registry *registry = wl_display_get_registry(state.display);
|
||||
wl_registry_add_listener(registry, ®istry_listener, &state);
|
||||
wl_display_roundtrip(state.display);
|
||||
if (state.compositor == NULL || state.shm == NULL ||
|
||||
state.layer_shell == NULL || state.xdg_output_manager == NULL) {
|
||||
sway_log(SWAY_ERROR, "Missing a required Wayland interface");
|
||||
return 1;
|
||||
}
|
||||
|
||||
struct swaybg_output *output;
|
||||
wl_list_for_each(output, &state.outputs, link) {
|
||||
output->xdg_output = zxdg_output_manager_v1_get_xdg_output(
|
||||
state.xdg_output_manager, output->wl_output);
|
||||
zxdg_output_v1_add_listener(output->xdg_output,
|
||||
&xdg_output_listener, output);
|
||||
}
|
||||
|
||||
state.run_display = true;
|
||||
while (wl_display_dispatch(state.display) != -1 && state.run_display) {
|
||||
// This space intentionally left blank
|
||||
}
|
||||
|
||||
struct swaybg_output *tmp_output;
|
||||
wl_list_for_each_safe(output, tmp_output, &state.outputs, link) {
|
||||
destroy_swaybg_output(output);
|
||||
}
|
||||
|
||||
struct swaybg_output_config *config = NULL, *tmp_config = NULL;
|
||||
wl_list_for_each_safe(config, tmp_config, &state.configs, link) {
|
||||
destroy_swaybg_output_config(config);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
@ -1,16 +0,0 @@
|
||||
executable(
|
||||
'swaybg',
|
||||
'main.c',
|
||||
include_directories: [sway_inc],
|
||||
dependencies: [
|
||||
cairo,
|
||||
client_protos,
|
||||
gdk_pixbuf,
|
||||
jsonc,
|
||||
pango,
|
||||
pangocairo,
|
||||
wayland_client
|
||||
],
|
||||
link_with: [lib_sway_common, lib_sway_client],
|
||||
install: true
|
||||
)
|
||||
@ -1,44 +0,0 @@
|
||||
swaybg(1)
|
||||
|
||||
# NAME
|
||||
|
||||
swaybg - Background for Wayland
|
||||
|
||||
# SYNOPSIS
|
||||
|
||||
*swaybg* [options...]
|
||||
|
||||
Displays a background image on all outputs of your Wayland session.
|
||||
|
||||
Without an output specified, appearance options apply to all outputs.
|
||||
Per-output appearance options can be set by passing _-o, --output_ followed by
|
||||
these options.
|
||||
|
||||
# OPTIONS
|
||||
|
||||
*-c, --color* <rrggbb[aa]>
|
||||
Set the background color.
|
||||
|
||||
*-h, --help*
|
||||
Show help message and quit.
|
||||
|
||||
*-i, --image* <path>
|
||||
Set the background image.
|
||||
|
||||
*-m, --mode* <mode>
|
||||
Scaling mode for images: _stretch_, _fill_, _fit_, _center_, or _tile_. Use
|
||||
the additional mode _solid\_color_ to display only the background color,
|
||||
even if a background image is specified.
|
||||
|
||||
*-o, --output* <name>
|
||||
Select an output to configure. Subsequent appearance options will only
|
||||
apply to this output. The special value _\*_ selects all outputs.
|
||||
|
||||
*-v, --version*
|
||||
Show the version number and quit.
|
||||
|
||||
# AUTHORS
|
||||
|
||||
Maintained by Drew DeVault <sir@cmpwn.com>, who is assisted by other open
|
||||
source contributors. For more information about swaybg development, see
|
||||
https://github.com/swaywm/sway.
|
||||
Loading…
Reference in new issue