diff options
Diffstat (limited to 'swaynag')
| -rw-r--r-- | swaynag/main.c | 246 | ||||
| -rw-r--r-- | swaynag/meson.build | 20 | ||||
| -rw-r--r-- | swaynag/nagbar.c | 420 | ||||
| -rw-r--r-- | swaynag/render.c | 300 | ||||
| -rw-r--r-- | swaynag/swaynag.1.scd | 52 |
5 files changed, 1038 insertions, 0 deletions
diff --git a/swaynag/main.c b/swaynag/main.c new file mode 100644 index 00000000..60560c72 --- /dev/null +++ b/swaynag/main.c @@ -0,0 +1,246 @@ +#define _XOPEN_SOURCE 500 +#include <getopt.h> +#include <signal.h> +#include "log.h" +#include "list.h" +#include "readline.h" +#include "swaynag/nagbar.h" +#include "wlr-layer-shell-unstable-v1-client-protocol.h" + +static struct sway_nagbar nagbar; + +void sig_handler(int signal) { + nagbar_destroy(&nagbar); + exit(EXIT_FAILURE); +} + +void sway_terminate(int code) { + nagbar_destroy(&nagbar); + exit(code); +} + +static void set_nagbar_colors() { + if (nagbar.type == NAGBAR_ERROR) { + nagbar.colors.button_background = 0x680A0AFF; + nagbar.colors.background = 0x900000FF; + nagbar.colors.text = 0xFFFFFFFF; + nagbar.colors.border = 0xD92424FF; + nagbar.colors.border_bottom = 0x470909FF; + } else if (nagbar.type == NAGBAR_WARNING) { + nagbar.colors.button_background = 0xFFC100FF; + nagbar.colors.background = 0xFFA800FF; + nagbar.colors.text = 0x000000FF; + nagbar.colors.border = 0xAB7100FF; + nagbar.colors.border_bottom = 0xAB7100FF; + } +} + +static char *read_from_stdin() { + char *buffer = NULL; + while (!feof(stdin)) { + char *line = read_line(stdin); + if (!line) { + continue; + } + + if (!buffer) { + buffer = strdup(line); + } else { + buffer = realloc(buffer, strlen(buffer) + strlen(line) + 2); + strcat(buffer, line); + strcat(buffer, "\n"); + } + + free(line); + } + + if (buffer && buffer[strlen(buffer) - 1] == '\n') { + buffer[strlen(buffer) - 1] = '\0'; + } + + return buffer; +} + +int main(int argc, char **argv) { + int exit_code = EXIT_SUCCESS; + bool debug = false; + + memset(&nagbar, 0, sizeof(nagbar)); + nagbar.anchors = ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP + | ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT + | ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT; + nagbar.type = NAGBAR_ERROR; + set_nagbar_colors(); + nagbar.font = strdup("pango:monospace 10"); + nagbar.buttons = create_list(); + + struct sway_nagbar_button *button_close = + calloc(sizeof(struct sway_nagbar_button), 1); + button_close->text = strdup("X"); + button_close->type = NAGBAR_ACTION_DISMISS; + list_add(nagbar.buttons, button_close); + + struct sway_nagbar_button *button_details = + calloc(sizeof(struct sway_nagbar_button), 1); + button_details->text = strdup("Toggle Details"); + button_details->type = NAGBAR_ACTION_EXPAND; + + static struct option opts[] = { + {"button", required_argument, NULL, 'b'}, + {"debug", no_argument, NULL, 'd'}, + {"edge", required_argument, NULL, 'e'}, + {"font", required_argument, NULL, 'f'}, + {"help", no_argument, NULL, 'h'}, + {"detailed-message", no_argument, NULL, 'l'}, + {"detailed-button", required_argument, NULL, 'L'}, + {"message", required_argument, NULL, 'm'}, + {"output", required_argument, NULL, 'o'}, + {"dismiss-button", required_argument, NULL, 's'}, + {"type", required_argument, NULL, 't'}, + {"version", no_argument, NULL, 'v'}, + {0, 0, 0, 0} + }; + + const char *usage = + "Usage: swaynag [options...]\n" + "\n" + " -b, --button <text> <action> Create a button with text that " + "executes action when pressed. Multiple buttons can be defined.\n" + " -d, --debug Enable debugging.\n" + " -e, --edge top|bottom Set the edge to use.\n" + " -f, --font <font> Set the font to use.\n" + " -h, --help Show help message and quit.\n" + " -l, --detailed-message Read a detailed message from stdin.\n" + " -L, --detailed-button <text> Set the text of the detail button.\n" + " -m, --message <msg> Set the message text.\n" + " -o, --output <output> Set the output to use.\n" + " -s, --dismiss-button <text> Set the dismiss button text.\n" + " -t, --type error|warning Set the message type.\n" + " -v, --version Show the version number and quit.\n"; + + while (1) { + int c = getopt_long(argc, argv, "b:de:f:hlL:m:o:s:t:v", opts, NULL); + if (c == -1) { + break; + } + switch (c) { + case 'b': // Button + if (optind >= argc) { + fprintf(stderr, "Missing action for button %s\n", optarg); + exit_code = EXIT_FAILURE; + goto cleanup; + } + struct sway_nagbar_button *button; + button = calloc(sizeof(struct sway_nagbar_button), 1); + button->text = strdup(optarg); + button->type = NAGBAR_ACTION_COMMAND; + button->action = strdup(argv[optind]); + optind++; + list_add(nagbar.buttons, button); + break; + case 'd': // Debug + debug = true; + break; + case 'e': // Edge + if (strcmp(optarg, "top") == 0) { + nagbar.anchors = ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP + | ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT + | ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT; + } else if (strcmp(optarg, "bottom") == 0) { + nagbar.anchors = ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM + | ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT + | ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT; + } else { + fprintf(stderr, "Invalid edge: %s\n", optarg); + exit_code = EXIT_FAILURE; + goto cleanup; + } + break; + case 'f': // Font + free(nagbar.font); + nagbar.font = strdup(optarg); + break; + case 'l': // Detailed Message + free(nagbar.details.message); + nagbar.details.message = read_from_stdin(); + nagbar.details.button_up.text = strdup("▲"); + nagbar.details.button_down.text = strdup("▼"); + break; + case 'L': // Detailed Button Text + free(button_details->text); + button_details->text = strdup(optarg); + break; + case 'm': // Message + free(nagbar.message); + nagbar.message = strdup(optarg); + break; + case 'o': // Output + free(nagbar.output.name); + nagbar.output.name = strdup(optarg); + break; + case 's': // Dismiss Button Text + free(button_close->text); + button_close->text = strdup(optarg); + break; + case 't': // Type + if (strcmp(optarg, "error") == 0) { + nagbar.type = NAGBAR_ERROR; + } else if (strcmp(optarg, "warning") == 0) { + nagbar.type = NAGBAR_WARNING; + } else { + fprintf(stderr, "Type must be either 'error' or 'warning'\n"); + exit_code = EXIT_FAILURE; + goto cleanup; + } + set_nagbar_colors(); + break; + case 'v': // Version + fprintf(stdout, "swaynag version " SWAY_VERSION "\n"); + exit_code = EXIT_SUCCESS; + goto cleanup; + default: // Help or unknown flag + fprintf(c == 'h' ? stdout : stderr, "%s", usage); + exit_code = c == 'h' ? EXIT_SUCCESS : EXIT_FAILURE; + goto cleanup; + } + } + + wlr_log_init(debug ? WLR_DEBUG : WLR_ERROR, NULL); + + if (!nagbar.message) { + wlr_log(WLR_ERROR, "No message passed. Please provide --message/-m"); + exit_code = EXIT_FAILURE; + goto cleanup; + } + + if (nagbar.details.message) { + list_add(nagbar.buttons, button_details); + } else { + free(button_details->text); + free(button_details); + } + + wlr_log(WLR_DEBUG, "Output: %s", nagbar.output.name); + wlr_log(WLR_DEBUG, "Anchors: %d", nagbar.anchors); + wlr_log(WLR_DEBUG, "Type: %d", nagbar.type); + wlr_log(WLR_DEBUG, "Message: %s", nagbar.message); + wlr_log(WLR_DEBUG, "Font: %s", nagbar.font); + wlr_log(WLR_DEBUG, "Buttons"); + for (int i = 0; i < nagbar.buttons->length; i++) { + struct sway_nagbar_button *button = nagbar.buttons->items[i]; + wlr_log(WLR_DEBUG, "\t[%s] `%s`", button->text, button->action); + } + + signal(SIGTERM, sig_handler); + + nagbar_setup(&nagbar); + nagbar_run(&nagbar); + return exit_code; + +cleanup: + free(button_details->text); + free(button_details); + nagbar_destroy(&nagbar); + return exit_code; +} + diff --git a/swaynag/meson.build b/swaynag/meson.build new file mode 100644 index 00000000..6492e4dc --- /dev/null +++ b/swaynag/meson.build @@ -0,0 +1,20 @@ +executable( + 'swaynag', [ + 'main.c', + 'nagbar.c', + 'render.c', + ], + include_directories: [sway_inc], + dependencies: [ + cairo, + client_protos, + gdk_pixbuf, + pango, + pangocairo, + wayland_client, + wayland_cursor, + wlroots, + ], + link_with: [lib_sway_common, lib_sway_client], + install: true +) diff --git a/swaynag/nagbar.c b/swaynag/nagbar.c new file mode 100644 index 00000000..6647e8c2 --- /dev/null +++ b/swaynag/nagbar.c @@ -0,0 +1,420 @@ +#define _XOPEN_SOURCE 500 +#include <assert.h> +#include <sys/stat.h> +#include <sys/wait.h> +#include <wayland-client.h> +#include <wayland-cursor.h> +#include "log.h" +#include "list.h" +#include "swaynag/nagbar.h" +#include "swaynag/render.h" +#include "wlr-layer-shell-unstable-v1-client-protocol.h" + +static void nop() { + // Intentionally left blank +} + +static bool terminal_execute(char *terminal, char *command) { + char fname[] = "/tmp/swaynagXXXXXX"; + FILE *tmp= fdopen(mkstemp(fname), "w"); + if (!tmp) { + wlr_log(WLR_ERROR, "Failed to create temp script"); + return false; + } + wlr_log(WLR_DEBUG, "Created temp script: %s", fname); + fprintf(tmp, "#!/bin/sh\nrm %s\n%s", fname, command); + fclose(tmp); + chmod(fname, S_IRUSR | S_IWUSR | S_IXUSR); + char cmd[strlen(terminal) + strlen(" -e ") + strlen(fname) + 1]; + sprintf(cmd, "%s -e %s", terminal, fname); + execl("/bin/sh", "/bin/sh", "-c", cmd, NULL); + return true; +} + +static void nagbar_button_execute(struct sway_nagbar *nagbar, + struct sway_nagbar_button *button) { + wlr_log(WLR_DEBUG, "Executing [%s]: %s", button->text, button->action); + if (button->type == NAGBAR_ACTION_DISMISS) { + nagbar->run_display = false; + } else if (button->type == NAGBAR_ACTION_EXPAND) { + nagbar->details.visible = !nagbar->details.visible; + render_frame(nagbar); + } else { + if (fork() == 0) { + // Child process. Will be used to prevent zombie processes + setsid(); + if (fork() == 0) { + // Child of the child. Will be reparented to the init process + char *terminal = getenv("TERMINAL"); + if (terminal && strlen(terminal)) { + wlr_log(WLR_DEBUG, "Found $TERMINAL: %s", terminal); + if (!terminal_execute(terminal, button->action)) { + nagbar_destroy(nagbar); + exit(EXIT_FAILURE); + } + } else { + wlr_log(WLR_DEBUG, "$TERMINAL not found. Running directly"); + execl("/bin/sh", "/bin/sh", "-c", button->action, NULL); + } + } + exit(EXIT_SUCCESS); + } + } + wait(0); +} + +static void layer_surface_configure(void *data, + struct zwlr_layer_surface_v1 *surface, + uint32_t serial, uint32_t width, uint32_t height) { + struct sway_nagbar *nagbar = data; + nagbar->width = width; + nagbar->height = height; + zwlr_layer_surface_v1_ack_configure(surface, serial); + render_frame(nagbar); +} + +static void layer_surface_closed(void *data, + struct zwlr_layer_surface_v1 *surface) { + struct sway_nagbar *nagbar = data; + nagbar_destroy(nagbar); +} + +static struct zwlr_layer_surface_v1_listener layer_surface_listener = { + .configure = layer_surface_configure, + .closed = layer_surface_closed, +}; + +static void wl_pointer_enter(void *data, struct wl_pointer *wl_pointer, + uint32_t serial, struct wl_surface *surface, + wl_fixed_t surface_x, wl_fixed_t surface_y) { + struct sway_nagbar *nagbar = data; + struct sway_nagbar_pointer *pointer = &nagbar->pointer; + wl_surface_set_buffer_scale(pointer->cursor_surface, nagbar->scale); + wl_surface_attach(pointer->cursor_surface, + wl_cursor_image_get_buffer(pointer->cursor_image), 0, 0); + wl_pointer_set_cursor(wl_pointer, serial, pointer->cursor_surface, + pointer->cursor_image->hotspot_x / nagbar->scale, + pointer->cursor_image->hotspot_y / nagbar->scale); + wl_surface_commit(pointer->cursor_surface); +} + +static void wl_pointer_motion(void *data, struct wl_pointer *wl_pointer, + uint32_t time, wl_fixed_t surface_x, wl_fixed_t surface_y) { + struct sway_nagbar *nagbar = data; + nagbar->pointer.x = wl_fixed_to_int(surface_x); + nagbar->pointer.y = wl_fixed_to_int(surface_y); +} + +static void wl_pointer_button(void *data, struct wl_pointer *wl_pointer, + uint32_t serial, uint32_t time, uint32_t button, uint32_t state) { + struct sway_nagbar *nagbar = data; + + if (state != WL_POINTER_BUTTON_STATE_PRESSED) { + return; + } + + double x = nagbar->pointer.x * nagbar->scale; + double y = nagbar->pointer.y * nagbar->scale; + for (int i = 0; i < nagbar->buttons->length; i++) { + struct sway_nagbar_button *nagbutton = nagbar->buttons->items[i]; + if (x >= nagbutton->x + && y >= nagbutton->y + && x < nagbutton->x + nagbutton->width + && y < nagbutton->y + nagbutton->height) { + nagbar_button_execute(nagbar, nagbutton); + return; + } + } + + if (nagbar->details.visible && + nagbar->details.total_lines != nagbar->details.visible_lines) { + struct sway_nagbar_button button_up = nagbar->details.button_up; + if (x >= button_up.x + && y >= button_up.y + && x < button_up.x + button_up.width + && y < button_up.y + button_up.height + && nagbar->details.offset > 0) { + nagbar->details.offset--; + render_frame(nagbar); + return; + } + + struct sway_nagbar_button button_down = nagbar->details.button_down; + int bot = nagbar->details.total_lines - nagbar->details.visible_lines; + if (x >= button_down.x + && y >= button_down.y + && x < button_down.x + button_down.width + && y < button_down.y + button_down.height + && nagbar->details.offset < bot) { + nagbar->details.offset++; + render_frame(nagbar); + return; + } + } +} + +static void wl_pointer_axis(void *data, struct wl_pointer *wl_pointer, + uint32_t time, uint32_t axis, wl_fixed_t value) { + struct sway_nagbar *nagbar = data; + if (!nagbar->details.visible + || nagbar->pointer.x < nagbar->details.x + || nagbar->pointer.y < nagbar->details.y + || nagbar->pointer.x >= nagbar->details.x + nagbar->details.width + || nagbar->pointer.y >= nagbar->details.y + nagbar->details.height + || nagbar->details.total_lines == nagbar->details.visible_lines) { + return; + } + + int direction = wl_fixed_to_int(value); + int bot = nagbar->details.total_lines - nagbar->details.visible_lines; + if (direction < 0 && nagbar->details.offset > 0) { + nagbar->details.offset--; + } else if (direction > 0 && nagbar->details.offset < bot) { + nagbar->details.offset++; + } + + render_frame(nagbar); +} + +static struct wl_pointer_listener pointer_listener = { + .enter = wl_pointer_enter, + .leave = nop, + .motion = wl_pointer_motion, + .button = wl_pointer_button, + .axis = wl_pointer_axis, + .frame = nop, + .axis_source = nop, + .axis_stop = nop, + .axis_discrete = nop, +}; + +static void seat_handle_capabilities(void *data, struct wl_seat *wl_seat, + enum wl_seat_capability caps) { + struct sway_nagbar *nagbar = data; + if ((caps & WL_SEAT_CAPABILITY_POINTER)) { + nagbar->pointer.pointer = wl_seat_get_pointer(wl_seat); + wl_pointer_add_listener(nagbar->pointer.pointer, &pointer_listener, + nagbar); + } +} + +const struct wl_seat_listener seat_listener = { + .capabilities = seat_handle_capabilities, + .name = nop, +}; + +static void output_scale(void *data, struct wl_output *output, + int32_t factor) { + struct sway_nagbar *nagbar = data; + nagbar->scale = factor; + render_frame(nagbar); +} + +static struct wl_output_listener output_listener = { + .geometry = nop, + .mode = nop, + .done = nop, + .scale = output_scale, +}; + +struct output_state { + struct wl_output *wl_output; + uint32_t wl_name; + struct zxdg_output_v1 *xdg_output; + struct sway_nagbar *nagbar; +}; + +static void xdg_output_handle_name(void *data, + struct zxdg_output_v1 *xdg_output, const char *name) { + struct output_state *state = data; + char *outname = state->nagbar->output.name; + wlr_log(WLR_DEBUG, "Checking against output %s for %s", name, outname); + if ((!outname && !state->nagbar->output.wl_output) + || (name && outname && strcmp(name, outname) == 0)) { + wlr_log(WLR_DEBUG, "Using output %s", name); + state->nagbar->output.wl_output = state->wl_output; + state->nagbar->output.wl_name = state->wl_name; + wl_output_add_listener(state->nagbar->output.wl_output, + &output_listener, state->nagbar); + wl_display_roundtrip(state->nagbar->display); + zxdg_output_v1_destroy(state->xdg_output); + } else { + zxdg_output_v1_destroy(state->xdg_output); + wl_output_destroy(state->wl_output); + } + state->nagbar->querying_outputs--; + free(state); +} + +static struct zxdg_output_v1_listener xdg_output_listener = { + .logical_position = nop, + .logical_size = nop, + .done = nop, + .name = xdg_output_handle_name, + .description = nop, +}; + +static void handle_global(void *data, struct wl_registry *registry, + uint32_t name, const char *interface, uint32_t version) { + struct sway_nagbar *nagbar = data; + if (strcmp(interface, wl_compositor_interface.name) == 0) { + nagbar->compositor = wl_registry_bind(registry, name, + &wl_compositor_interface, 3); + } else if (strcmp(interface, wl_seat_interface.name) == 0) { + nagbar->seat = wl_registry_bind(registry, name, &wl_seat_interface, 1); + wl_seat_add_listener(nagbar->seat, &seat_listener, nagbar); + } else if (strcmp(interface, wl_shm_interface.name) == 0) { + nagbar->shm = wl_registry_bind(registry, name, &wl_shm_interface, 1); + } else if (strcmp(interface, wl_output_interface.name) == 0) { + if (!nagbar->output.wl_output && nagbar->xdg_output_manager) { + nagbar->querying_outputs++; + struct output_state *state = + calloc(1, sizeof(struct output_state)); + state->nagbar = nagbar; + state->wl_output = wl_registry_bind(registry, name, + &wl_output_interface, 3); + state->wl_name = name; + state->xdg_output = zxdg_output_manager_v1_get_xdg_output( + nagbar->xdg_output_manager, state->wl_output); + zxdg_output_v1_add_listener(state->xdg_output, + &xdg_output_listener, state); + } else if (!nagbar->output.wl_output && !nagbar->xdg_output_manager) { + wlr_log(WLR_ERROR, "Warning: zxdg_output_manager_v1 not supported." + " Falling back to first detected output"); + nagbar->output.wl_output = wl_registry_bind(registry, name, + &wl_output_interface, 3); + nagbar->output.wl_name = name; + wl_output_add_listener(nagbar->output.wl_output, + &output_listener, nagbar); + } + } else if (strcmp(interface, zwlr_layer_shell_v1_interface.name) == 0) { + nagbar->layer_shell = wl_registry_bind( + registry, name, &zwlr_layer_shell_v1_interface, 1); + } else if (strcmp(interface, zxdg_output_manager_v1_interface.name) == 0 + && version >= ZXDG_OUTPUT_V1_NAME_SINCE_VERSION) { + nagbar->xdg_output_manager = wl_registry_bind(registry, name, + &zxdg_output_manager_v1_interface, + ZXDG_OUTPUT_V1_NAME_SINCE_VERSION); + } +} + +static void handle_global_remove(void *data, struct wl_registry *registry, + uint32_t name) { + struct sway_nagbar *nagbar = data; + if (nagbar->output.wl_name == name) { + nagbar->run_display = false; + } +} + +static const struct wl_registry_listener registry_listener = { + .global = handle_global, + .global_remove = handle_global_remove, +}; + +void nagbar_setup(struct sway_nagbar *nagbar) { + nagbar->display = wl_display_connect(NULL); + assert(nagbar->display); + + nagbar->scale = 1; + + struct wl_registry *registry = wl_display_get_registry(nagbar->display); + wl_registry_add_listener(registry, ®istry_listener, nagbar); + wl_display_roundtrip(nagbar->display); + assert(nagbar->compositor && nagbar->layer_shell && nagbar->shm); + + while (nagbar->querying_outputs > 0) { + wl_display_roundtrip(nagbar->display); + } + + if (!nagbar->output.wl_output) { + if (nagbar->output.name) { + wlr_log(WLR_ERROR, "Output '%s' not found", nagbar->output.name); + } else { + wlr_log(WLR_ERROR, "No outputs detected"); + } + nagbar_destroy(nagbar); + exit(EXIT_FAILURE); + } + + struct sway_nagbar_pointer *pointer = &nagbar->pointer; + int scale = nagbar->scale < 1 ? 1 : nagbar->scale; + pointer->cursor_theme = wl_cursor_theme_load( + NULL, 24 * scale, nagbar->shm); + assert(pointer->cursor_theme); + struct wl_cursor *cursor = + wl_cursor_theme_get_cursor(pointer->cursor_theme, "left_ptr"); + assert(cursor); + pointer->cursor_image = cursor->images[0]; + pointer->cursor_surface = wl_compositor_create_surface(nagbar->compositor); + assert(pointer->cursor_surface); + + nagbar->surface = wl_compositor_create_surface(nagbar->compositor); + assert(nagbar->surface); + nagbar->layer_surface = zwlr_layer_shell_v1_get_layer_surface( + nagbar->layer_shell, nagbar->surface, nagbar->output.wl_output, + ZWLR_LAYER_SHELL_V1_LAYER_TOP, "swaynag"); + assert(nagbar->layer_surface); + zwlr_layer_surface_v1_add_listener(nagbar->layer_surface, + &layer_surface_listener, nagbar); + zwlr_layer_surface_v1_set_anchor(nagbar->layer_surface, nagbar->anchors); + + wl_registry_destroy(registry); +} + +void nagbar_run(struct sway_nagbar *nagbar) { + nagbar->run_display = true; + render_frame(nagbar); + while (nagbar->run_display && wl_display_dispatch(nagbar->display) != -1) { + // This is intentionally left blank + } +} + +void nagbar_destroy(struct sway_nagbar *nagbar) { + nagbar->run_display = false; + + free(nagbar->message); + free(nagbar->font); + while (nagbar->buttons->length) { + struct sway_nagbar_button *button = nagbar->buttons->items[0]; + list_del(nagbar->buttons, 0); + free(button->text); + free(button->action); + free(button); + } + list_free(nagbar->buttons); + free(nagbar->details.message); + free(nagbar->details.button_up.text); + free(nagbar->details.button_down.text); + + if (nagbar->layer_surface) { + zwlr_layer_surface_v1_destroy(nagbar->layer_surface); + } + + if (nagbar->surface) { + wl_surface_destroy(nagbar->surface); + } + + if (nagbar->output.wl_output) { + wl_output_destroy(nagbar->output.wl_output); + } + + if (&nagbar->buffers[0]) { + destroy_buffer(&nagbar->buffers[0]); + } + + if (&nagbar->buffers[1]) { + destroy_buffer(&nagbar->buffers[1]); + } + + if (nagbar->compositor) { + wl_compositor_destroy(nagbar->compositor); + } + + if (nagbar->shm) { + wl_shm_destroy(nagbar->shm); + } + + if (nagbar->display) { + wl_display_disconnect(nagbar->display); + } +} diff --git a/swaynag/render.c b/swaynag/render.c new file mode 100644 index 00000000..150ae3f2 --- /dev/null +++ b/swaynag/render.c @@ -0,0 +1,300 @@ +#include <stdint.h> +#include "cairo.h" +#include "log.h" +#include "pango.h" +#include "pool-buffer.h" +#include "swaynag/nagbar.h" +#include "wlr-layer-shell-unstable-v1-client-protocol.h" + +static uint32_t render_message(cairo_t *cairo, struct sway_nagbar *nagbar) { + uint32_t height = nagbar->height * nagbar->scale; + height -= NAGBAR_BAR_BORDER_THICKNESS * nagbar->scale; + + int text_width, text_height; + get_text_size(cairo, nagbar->font, &text_width, &text_height, + nagbar->scale, true, "%s", nagbar->message); + + int padding = NAGBAR_MESSAGE_PADDING * nagbar->scale; + + uint32_t ideal_height = text_height + padding * 2; + uint32_t ideal_surface_height = ideal_height / nagbar->scale; + if (nagbar->height < ideal_surface_height) { + return ideal_surface_height; + } + + cairo_set_source_u32(cairo, nagbar->colors.text); + cairo_move_to(cairo, padding, (int)(ideal_height - text_height) / 2); + pango_printf(cairo, nagbar->font, nagbar->scale, true, "%s", + nagbar->message); + + return ideal_height; +} + +static void render_details_scroll_button(cairo_t *cairo, + struct sway_nagbar *nagbar, struct sway_nagbar_button *button) { + int text_width, text_height; + get_text_size(cairo, nagbar->font, &text_width, &text_height, + nagbar->scale, true, "%s", button->text); + + int border = NAGBAR_BUTTON_BORDER_THICKNESS * nagbar->scale; + int padding = NAGBAR_BUTTON_PADDING * nagbar->scale; + + cairo_set_source_u32(cairo, nagbar->colors.border); + cairo_rectangle(cairo, button->x, button->y, + button->width, button->height); + cairo_fill(cairo); + + cairo_set_source_u32(cairo, nagbar->colors.button_background); + cairo_rectangle(cairo, button->x + border, button->y + border, + button->width - (border * 2), button->height - (border * 2)); + cairo_fill(cairo); + + cairo_set_source_u32(cairo, nagbar->colors.text); + cairo_move_to(cairo, button->x + border + padding, + button->y + border + (button->height - text_height) / 2); + pango_printf(cairo, nagbar->font, nagbar->scale, true, "%s", button->text); +} + +static int get_detailed_scroll_button_width(cairo_t *cairo, + struct sway_nagbar *nagbar) { + int up_width, down_width, temp_height; + get_text_size(cairo, nagbar->font, &up_width, &temp_height, + nagbar->scale, true, "%s", nagbar->details.button_up.text); + get_text_size(cairo, nagbar->font, &down_width, &temp_height, + nagbar->scale, true, "%s", nagbar->details.button_down.text); + + int text_width = up_width > down_width ? up_width : down_width; + int border = NAGBAR_BUTTON_BORDER_THICKNESS * nagbar->scale; + int padding = NAGBAR_BUTTON_PADDING * nagbar->scale; + + return text_width + border * 2 + padding * 2; +} + +static uint32_t render_detailed(cairo_t *cairo, struct sway_nagbar *nagbar, + uint32_t y) { + uint32_t width = nagbar->width * nagbar->scale; + uint32_t height = nagbar->height * nagbar->scale; + height -= NAGBAR_BAR_BORDER_THICKNESS * nagbar->scale; + + int border = NAGBAR_DETAILS_BORDER_THICKNESS * nagbar->scale; + int padding = NAGBAR_MESSAGE_PADDING * nagbar->scale; + int decor = padding + border; + + nagbar->details.x = decor; + nagbar->details.y = y + decor; + nagbar->details.width = width - decor * 2; + + PangoLayout *layout = get_pango_layout(cairo, nagbar->font, + nagbar->details.message, nagbar->scale, true); + pango_layout_set_width(layout, + (nagbar->details.width - padding * 2) * PANGO_SCALE); + pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR); + pango_layout_set_single_paragraph_mode(layout, false); + pango_cairo_update_layout(cairo, layout); + nagbar->details.total_lines = pango_layout_get_line_count(layout); + + PangoLayoutLine *line; + line = pango_layout_get_line_readonly(layout, nagbar->details.offset); + gint offset = line->start_index; + const char *text = pango_layout_get_text(layout); + pango_layout_set_text(layout, text + offset, strlen(text) - offset); + + int text_width, text_height; + pango_cairo_update_layout(cairo, layout); + pango_layout_get_pixel_size(layout, &text_width, &text_height); + + bool show_buttons = nagbar->details.offset > 0; + int button_width = get_detailed_scroll_button_width(cairo, nagbar); + if (show_buttons) { + nagbar->details.width -= button_width; + pango_layout_set_width(layout, + (nagbar->details.width - padding * 2) * PANGO_SCALE); + } + + uint32_t ideal_height; + do { + ideal_height = nagbar->details.y + text_height + decor + padding * 2; + if (ideal_height > NAGBAR_MAX_HEIGHT) { + ideal_height = NAGBAR_MAX_HEIGHT; + + if (!show_buttons) { + show_buttons = true; + nagbar->details.width -= button_width; + pango_layout_set_width(layout, + (nagbar->details.width - padding * 2) * PANGO_SCALE); + } + } + + nagbar->details.height = ideal_height - nagbar->details.y - decor; + pango_layout_set_height(layout, + (nagbar->details.height - padding * 2) * PANGO_SCALE); + pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_END); + pango_cairo_update_layout(cairo, layout); + pango_layout_get_pixel_size(layout, &text_width, &text_height); + } while (text_height != (nagbar->details.height - padding * 2)); + + nagbar->details.visible_lines = pango_layout_get_line_count(layout); + + if (show_buttons) { + nagbar->details.button_up.x = + nagbar->details.x + nagbar->details.width; + nagbar->details.button_up.y = nagbar->details.y; + nagbar->details.button_up.width = button_width; + nagbar->details.button_up.height = nagbar->details.height / 2; + render_details_scroll_button(cairo, nagbar, + &nagbar->details.button_up); + + nagbar->details.button_down.x = + nagbar->details.x + nagbar->details.width; + nagbar->details.button_down.y = + nagbar->details.button_up.y + nagbar->details.button_up.height; + nagbar->details.button_down.width = button_width; + nagbar->details.button_down.height = nagbar->details.height / 2; + render_details_scroll_button(cairo, nagbar, + &nagbar->details.button_down); + } + + cairo_set_source_u32(cairo, nagbar->colors.border); + cairo_rectangle(cairo, nagbar->details.x, nagbar->details.y, + nagbar->details.width, nagbar->details.height); + cairo_fill(cairo); + + cairo_move_to(cairo, nagbar->details.x + padding, + nagbar->details.y + padding); + cairo_set_source_u32(cairo, nagbar->colors.text); + pango_cairo_show_layout(cairo, layout); + g_object_unref(layout); + + return ideal_height; +} + +static uint32_t render_button(cairo_t *cairo, struct sway_nagbar *nagbar, + int button_index, int *x) { + uint32_t height = nagbar->height * nagbar->scale; + height -= NAGBAR_BAR_BORDER_THICKNESS * nagbar->scale; + struct sway_nagbar_button *button = nagbar->buttons->items[button_index]; + + int text_width, text_height; + get_text_size(cairo, nagbar->font, &text_width, &text_height, + nagbar->scale, true, "%s", button->text); + + int border = NAGBAR_BUTTON_BORDER_THICKNESS * nagbar->scale; + int padding = NAGBAR_BUTTON_PADDING * nagbar->scale; + + uint32_t ideal_height = text_height + padding * 2 + border * 2; + uint32_t ideal_surface_height = ideal_height / nagbar->scale; + if (nagbar->height < ideal_surface_height) { + return ideal_surface_height; + } + + button->x = *x - border - text_width - padding * 2; + button->y = (int)(ideal_height - text_height) / 2 - padding; + button->width = text_width + padding * 2; + button->height = text_height + padding * 2; + + cairo_set_source_u32(cairo, nagbar->colors.border); + cairo_rectangle(cairo, button->x - border, button->y - border, + button->width + border * 2, button->height + border * 2); + cairo_fill(cairo); + + cairo_set_source_u32(cairo, nagbar->colors.button_background); + cairo_rectangle(cairo, button->x, button->y, + button->width, button->height); + cairo_fill(cairo); + + cairo_set_source_u32(cairo, nagbar->colors.text); + cairo_move_to(cairo, button->x + padding, button->y + padding); + pango_printf(cairo, nagbar->font, nagbar->scale, true, "%s", button->text); + + *x = button->x - border; + + return ideal_height; +} + +static uint32_t render_to_cairo(cairo_t *cairo, struct sway_nagbar *nagbar) { + uint32_t max_height = 0; + + cairo_set_operator(cairo, CAIRO_OPERATOR_SOURCE); + cairo_set_source_u32(cairo, nagbar->colors.background); + cairo_paint(cairo); + + uint32_t h = render_message(cairo, nagbar); + max_height = h > max_height ? h : max_height; + + int x = (nagbar->width - NAGBAR_BUTTON_MARGIN_RIGHT) * nagbar->scale; + for (int i = 0; i < nagbar->buttons->length; i++) { + h = render_button(cairo, nagbar, i, &x); + max_height = h > max_height ? h : max_height; + x -= NAGBAR_BUTTON_GAP * nagbar->scale; + if (i == 0) { + x -= NAGBAR_BUTTON_GAP_CLOSE * nagbar->scale; + } + } + + if (nagbar->details.visible) { + h = render_detailed(cairo, nagbar, max_height); + max_height = h > max_height ? h : max_height; + } + + int border = NAGBAR_BAR_BORDER_THICKNESS * nagbar->scale; + if (max_height > nagbar->height) { + max_height += border; + } + cairo_set_source_u32(cairo, nagbar->colors.border_bottom); + cairo_rectangle(cairo, 0, nagbar->height * nagbar->scale - border, + nagbar->width * nagbar->scale, border); + cairo_fill(cairo); + + return max_height; +} + +void render_frame(struct sway_nagbar *nagbar) { + if (!nagbar->run_display) { + return; + } + + cairo_surface_t *recorder = cairo_recording_surface_create( + CAIRO_CONTENT_COLOR_ALPHA, NULL); + cairo_t *cairo = cairo_create(recorder); + cairo_save(cairo); + cairo_set_operator(cairo, CAIRO_OPERATOR_CLEAR); + cairo_paint(cairo); + cairo_restore(cairo); + uint32_t height = render_to_cairo(cairo, nagbar); + if (height != nagbar->height) { + zwlr_layer_surface_v1_set_size(nagbar->layer_surface, 0, height); + zwlr_layer_surface_v1_set_exclusive_zone(nagbar->layer_surface, + height); + wl_surface_commit(nagbar->surface); + wl_display_roundtrip(nagbar->display); + } else { + nagbar->current_buffer = get_next_buffer(nagbar->shm, + nagbar->buffers, + nagbar->width * nagbar->scale, + nagbar->height * nagbar->scale); + if (!nagbar->current_buffer) { + wlr_log(WLR_DEBUG, "Failed to get buffer. Skipping frame."); + goto cleanup; + } + + cairo_t *shm = nagbar->current_buffer->cairo; + cairo_save(shm); + cairo_set_operator(shm, CAIRO_OPERATOR_CLEAR); + cairo_paint(shm); + cairo_restore(shm); + cairo_set_source_surface(shm, recorder, 0.0, 0.0); + cairo_paint(shm); + + wl_surface_set_buffer_scale(nagbar->surface, nagbar->scale); + wl_surface_attach(nagbar->surface, + nagbar->current_buffer->buffer, 0, 0); + wl_surface_damage(nagbar->surface, 0, 0, + nagbar->width, nagbar->height); + wl_surface_commit(nagbar->surface); + wl_display_roundtrip(nagbar->display); + } + +cleanup: + cairo_surface_destroy(recorder); + cairo_destroy(cairo); +} diff --git a/swaynag/swaynag.1.scd b/swaynag/swaynag.1.scd new file mode 100644 index 00000000..879aaf2e --- /dev/null +++ b/swaynag/swaynag.1.scd @@ -0,0 +1,52 @@ +swaynagbar(1) + +# NAME + +swaynag - Show a warning or error message with buttons + +# SYNOPSIS + +_swaynag_ [options...] + +# OPTIONS +*-b, --button* <text> <action> + Create a button with the text _text_ that executes _action_ when pressed. + Multiple buttons can be defined by providing the flag multiple times. + +*-d, --debug* + Enable debugging. + +*-e, --edge top|bottom* + Set the edge to use. + +*-f, --font <font>* + Set the font to use. + +*-h, --help* + Show help message and quit. + +*-l, --detailed-message* + Read a detailed message from stdin. A button to toggle details will be + added. Details are shown in a scrollable multi-line text area. + +*-L, --detailed-button <text>* + Set the text for the button that toggles details. This has no effect if + there is not a detailed message. The default is _Toggle Details_. + +*-m, --message <msg>* + Set the message text. + +*-o, --output <output>* + Set the output to use. This should be the name of a _xdg\_output_. If + _xdg\_output\_manager_ is not supported, then the first detected output + will be used + +*-s, --dismiss-button <text>* + Sets the text for the dismiss nagbar button. The default is _X_. + +*-t, --type error|warning* + Set the message type. + +*-v, --version + Show the version number and quit. + |