Implement show_marks

include/sway/tree/view.h

@@ -63,6 +63,11 @@ struct sway_view {
 	list_t *executed_criteria; // struct criteria *
 	list_t *marks;             // char *
 
+	struct wlr_texture *marks_focused;
+	struct wlr_texture *marks_focused_inactive;
+	struct wlr_texture *marks_unfocused;
+	struct wlr_texture *marks_urgent;
+
 	union {
 		struct wlr_xdg_surface_v6 *wlr_xdg_surface_v6;
 		struct wlr_xdg_surface *wlr_xdg_surface;
@@ -267,4 +272,6 @@ void view_clear_marks(struct sway_view *view);
 
 bool view_has_mark(struct sway_view *view, char *mark);
 
+void view_update_marks_textures(struct sway_view *view);
+
 #endif

sway/commands.c

@@ -116,6 +116,7 @@ static struct cmd_handler handlers[] = {
 	{ "mouse_warping", cmd_mouse_warping },
 	{ "output", cmd_output },
 	{ "seat", cmd_seat },
+	{ "show_marks", cmd_show_marks },
 	{ "workspace", cmd_workspace },
 	{ "workspace_auto_back_and_forth", cmd_ws_auto_back_and_forth },
 };

sway/commands/mark.c

@@ -62,6 +62,7 @@ struct cmd_results *cmd_mark(int argc, char **argv) {
 	}
 
 	free(mark);
+	view_update_marks_textures(view);
 	view_execute_criteria(view);
 
 	return cmd_results_new(CMD_SUCCESS, NULL, NULL);

sway/commands/show_marks.c

@@ -0,0 +1,43 @@
+#define _POSIX_C_SOURCE 200809L
+#include <string.h>
+#include "sway/commands.h"
+#include "sway/config.h"
+#include "sway/tree/view.h"
+#include "sway/output.h"
+#include "list.h"
+#include "log.h"
+#include "stringop.h"
+
+static void rebuild_marks_iterator(struct sway_container *con, void *data) {
+	if (con->type == C_VIEW) {
+		view_update_marks_textures(con->sway_view);
+	}
+}
+
+struct cmd_results *cmd_show_marks(int argc, char **argv) {
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, "show_marks", EXPECTED_AT_LEAST, 1))) {
+		return error;
+	}
+
+	if (strcmp(*argv, "yes") == 0) {
+		config->show_marks = true;
+	} else if (strcmp(*argv, "no") == 0) {
+		config->show_marks = false;
+	} else {
+		return cmd_results_new(CMD_INVALID, "show_marks",
+				"Expected 'show_marks <yes|no>'");
+	}
+
+	if (config->show_marks) {
+		container_for_each_descendant_dfs(&root_container,
+				rebuild_marks_iterator, NULL);
+	}
+
+	for (int i = 0; i < root_container.children->length; ++i) {
+		struct sway_container *con = root_container.children->items[i];
+		output_damage_whole(con->sway_output);
+	}
+
+	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
+}

sway/commands/unmark.c

@@ -10,6 +10,7 @@
 static void remove_all_marks_iterator(struct sway_container *con, void *data) {
 	if (con->type == C_VIEW) {
 		view_clear_marks(con->sway_view);
+		view_update_marks_textures(con->sway_view);
 	}
 }
 
@@ -45,6 +46,7 @@ struct cmd_results *cmd_unmark(int argc, char **argv) {
 	} else if (view && !mark) {
 		// Clear all marks from the given view
 		view_clear_marks(view);
+		view_update_marks_textures(view);
 	} else if (!view && mark) {
 		// Remove mark from whichever view has it
 		view_find_and_unmark(mark);

sway/desktop/output.c

@@ -317,7 +317,7 @@ damage_finish:
 static void render_container_simple_border_normal(struct sway_output *output,
 		pixman_region32_t *output_damage,
 		struct sway_container *con, struct border_colors *colors,
-		struct wlr_texture *title_texture) {
+		struct wlr_texture *title_texture, struct wlr_texture *marks_texture) {
 	struct wlr_box box;
 	float color[4];
 
@@ -413,6 +413,25 @@ static void render_container_simple_border_normal(struct sway_output *output,
 		render_texture(output->wlr_output, output_damage, title_texture,
 			&texture_box, matrix, 1.0);
 	}
+
+	// Marks
+	if (config->show_marks && marks_texture) {
+		float output_scale = output->wlr_output->scale;
+		struct wlr_box texture_box;
+		wlr_texture_get_size(marks_texture,
+			&texture_box.width, &texture_box.height);
+		texture_box.x = (box.x + box.width) * output_scale - texture_box.width;
+		texture_box.y = (box.y + box.height)
+			* output_scale - texture_box.height;
+
+		float matrix[9];
+		wlr_matrix_project_box(matrix, &texture_box,
+			WL_OUTPUT_TRANSFORM_NORMAL,
+			0.0, output->wlr_output->transform_matrix);
+
+		render_texture(output->wlr_output, output_damage, marks_texture,
+			&texture_box, matrix, 1.0);
+	}
 }
 
 /**
@@ -501,20 +520,24 @@ static void render_container_simple(struct sway_output *output,
 			if (child->sway_view->border != B_NONE) {
 				struct border_colors *colors;
 				struct wlr_texture *title_texture;
+				struct wlr_texture *marks_texture;
 				if (focus == child || parent_focused) {
 					colors = &config->border_colors.focused;
 					title_texture = child->title_focused;
+					marks_texture = child->sway_view->marks_focused;
 				} else if (seat_get_focus_inactive(seat, con) == child) {
 					colors = &config->border_colors.focused_inactive;
 					title_texture = child->title_focused_inactive;
+					marks_texture = child->sway_view->marks_focused_inactive;
 				} else {
 					colors = &config->border_colors.unfocused;
 					title_texture = child->title_unfocused;
+					marks_texture = child->sway_view->marks_unfocused;
 				}
 
 				if (child->sway_view->border == B_NORMAL) {
 					render_container_simple_border_normal(output, damage,
-						child, colors, title_texture);
+						child, colors, title_texture, marks_texture);
 				} else {
 					render_container_simple_border_pixel(output, damage, child,
 						colors);

sway/meson.build

@@ -60,6 +60,7 @@ sway_sources = files(
 	'commands/seat/cursor.c',
 	'commands/seat/fallback.c',
 	'commands/set.c',
+	'commands/show_marks.c',
 	'commands/split.c',
 	'commands/swaybg_command.c',
 	'commands/title_format.c',

sway/tree/view.c

@@ -746,6 +746,7 @@ bool view_find_and_unmark(char *mark) {
 		if (strcmp(view_mark, mark) == 0) {
 			free(view_mark);
 			list_del(view->marks, i);
+			view_update_marks_textures(view);
 			return true;
 		}
 	}
@@ -769,3 +770,80 @@ bool view_has_mark(struct sway_view *view, char *mark) {
 	}
 	return false;
 }
+
+static void update_marks_texture(struct sway_view *view,
+		struct wlr_texture **texture, struct border_colors *class) {
+	struct sway_container *output = container_parent(view->swayc, C_OUTPUT);
+	if (!output) {
+		return;
+	}
+	if (*texture) {
+		wlr_texture_destroy(*texture);
+	}
+	if (!view->marks->length) {
+		return;
+	}
+
+	size_t len = 0;
+	for (int i = 0; i < view->marks->length; ++i) {
+		len += strlen((char *)view->marks->items[i]) + 2;
+	}
+	char *buffer = calloc(len + 1, 1);
+	char *part = malloc(len + 1);
+
+	for (int i = 0; i < view->marks->length; ++i) {
+		char *mark = view->marks->items[i];
+		sprintf(part, "[%s]", mark);
+		strcat(buffer, part);
+	}
+	free(part);
+
+	double scale = output->sway_output->wlr_output->scale;
+	int width = 0;
+	int height = config->font_height * scale;
+
+	cairo_t *c = cairo_create(NULL);
+	get_text_size(c, config->font, &width, NULL, scale, false, "%s", buffer);
+	cairo_destroy(c);
+
+	cairo_surface_t *surface = cairo_image_surface_create(
+			CAIRO_FORMAT_ARGB32, width, height);
+	cairo_t *cairo = cairo_create(surface);
+	cairo_set_source_rgba(cairo, class->background[0], class->background[1],
+			class->background[2], class->background[3]);
+	cairo_paint(cairo);
+	PangoContext *pango = pango_cairo_create_context(cairo);
+	cairo_set_antialias(cairo, CAIRO_ANTIALIAS_BEST);
+	cairo_set_source_rgba(cairo, class->text[0], class->text[1],
+			class->text[2], class->text[3]);
+	cairo_move_to(cairo, 0, 0);
+
+	pango_printf(cairo, config->font, scale, false, "%s", buffer);
+
+	cairo_surface_flush(surface);
+	unsigned char *data = cairo_image_surface_get_data(surface);
+	int stride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, width);
+	struct wlr_renderer *renderer = wlr_backend_get_renderer(
+			output->sway_output->wlr_output->backend);
+	*texture = wlr_texture_from_pixels(
+			renderer, WL_SHM_FORMAT_ARGB8888, stride, width, height, data);
+	cairo_surface_destroy(surface);
+	g_object_unref(pango);
+	cairo_destroy(cairo);
+	free(buffer);
+}
+
+void view_update_marks_textures(struct sway_view *view) {
+	if (!config->show_marks) {
+		return;
+	}
+	update_marks_texture(view, &view->marks_focused,
+			&config->border_colors.focused);
+	update_marks_texture(view, &view->marks_focused_inactive,
+			&config->border_colors.focused_inactive);
+	update_marks_texture(view, &view->marks_unfocused,
+			&config->border_colors.unfocused);
+	update_marks_texture(view, &view->marks_urgent,
+			&config->border_colors.urgent);
+	container_damage_whole(view->swayc);
+}