add patch/sway-borders

include/sway/commands.h

@@ -110,6 +110,10 @@ sway_cmd cmd_bindcode;
 sway_cmd cmd_bindswitch;
 sway_cmd cmd_bindsym;
 sway_cmd cmd_border;
+sway_cmd cmd_border_images_focused;
+sway_cmd cmd_border_images_focused_inactive;
+sway_cmd cmd_border_images_unfocused;
+sway_cmd cmd_border_images_urgent;
 sway_cmd cmd_client_noop;
 sway_cmd cmd_client_focused;
 sway_cmd cmd_client_focused_inactive;

include/sway/config.h

@@ -1,9 +1,11 @@
 #ifndef _SWAY_CONFIG_H
 #define _SWAY_CONFIG_H
+#include <cairo.h>
 #include <libinput.h>
 #include <stdint.h>
 #include <string.h>
 #include <time.h>
+#include <wlr/render/wlr_texture.h>
 #include <wlr/interfaces/wlr_switch.h>
 #include <wlr/types/wlr_tablet_tool.h>
 #include <wlr/util/box.h>
@@ -397,6 +399,11 @@ struct border_colors {
 	float child_border[4];
 };
 
+struct border_textures {
+  cairo_surface_t *image_surface;
+  struct wlr_texture *texture;
+};
+
 enum edge_border_types {
 	E_NONE, /**< Don't hide edge borders */
 	E_VERTICAL, /**< hide vertical edge borders */
@@ -506,8 +513,8 @@ struct sway_config {
 	enum focus_follows_mouse_mode focus_follows_mouse;
 	enum mouse_warping_mode mouse_warping;
 	enum focus_wrapping_mode focus_wrapping;
-  bool ttyaccess;
 	bool active;
+	bool ttyaccess;
 	bool failed;
 	bool reloading;
 	bool reading;
@@ -548,6 +555,14 @@ struct sway_config {
 		float background[4];
 	} border_colors;
 
+	// border textures
+	struct {
+		struct border_textures focused;
+		struct border_textures focused_inactive;
+		struct border_textures unfocused;
+		struct border_textures urgent;
+	} border_textures;
+
 	// floating view
 	int32_t floating_maximum_width;
 	int32_t floating_maximum_height;

include/sway/tree/workspace.h

@@ -92,6 +92,9 @@ struct sway_output *workspace_output_get_highest_available(
 
 void workspace_detect_urgent(struct sway_workspace *workspace);
 
+void workspace_for_each_tiling_container(struct sway_workspace *ws,
+		void (*f)(struct sway_container *con, void *data), void *data);
+
 void workspace_for_each_container(struct sway_workspace *ws,
 		void (*f)(struct sway_container *con, void *data), void *data);
 

sway/commands.c

@@ -44,11 +44,15 @@ struct cmd_results *checkarg(int argc, const char *name, enum expected_args type
 /* Keep alphabetized */
 static const struct cmd_handler handlers[] = {
 	{ "assign", cmd_assign },
-  { "ttyaccess", cmd_ttyaccess },
+	{ "ttyaccess", cmd_ttyaccess },
 	{ "bar", cmd_bar },
 	{ "bindcode", cmd_bindcode },
 	{ "bindswitch", cmd_bindswitch },
 	{ "bindsym", cmd_bindsym },
+	{ "border_images.focused", cmd_border_images_focused },
+	{ "border_images.focused_inactive", cmd_border_images_focused_inactive },
+	{ "border_images.unfocused", cmd_border_images_unfocused },
+	{ "border_images.urgent", cmd_border_images_urgent },
 	{ "client.background", cmd_client_noop },
 	{ "client.focused", cmd_client_focused },
 	{ "client.focused_inactive", cmd_client_focused_inactive },
@@ -111,6 +115,10 @@ static const struct cmd_handler config_handlers[] = {
 /* Runtime-only commands. Keep alphabetized */
 static const struct cmd_handler command_handlers[] = {
 	{ "border", cmd_border },
+	{ "border_images.focused", cmd_border_images_focused },
+	{ "border_images.focused_inactive", cmd_border_images_focused_inactive },
+	{ "border_images.unfocused", cmd_border_images_unfocused },
+	{ "border_images.urgent", cmd_border_images_urgent },
 	{ "create_output", cmd_create_output },
 	{ "exit", cmd_exit },
 	{ "floating", cmd_floating },

sway/commands/border_images.c

@@ -0,0 +1,76 @@
+#define _POSIX_C_SOURCE 200809L
+#include <wlr/render/wlr_renderer.h>
+#include <drm_fourcc.h>
+#include <string.h>
+#include "cairo.h"
+#include "log.h"
+#include "stringop.h"
+#include "sway/commands.h"
+#include "sway/config.h"
+#include "sway/output.h"
+
+static void apply_border_textures_for_class(struct border_textures *class) {
+	struct sway_output *output = root->outputs->items[0];
+	struct wlr_renderer *renderer = wlr_backend_get_renderer(
+			output->wlr_output->backend);
+	class->texture = wlr_texture_from_pixels(renderer, DRM_FORMAT_ARGB8888,
+		cairo_image_surface_get_width(class->image_surface) * 4,
+		cairo_image_surface_get_width(class->image_surface),
+		cairo_image_surface_get_height(class->image_surface),
+		cairo_image_surface_get_data(class->image_surface));
+}
+
+static struct cmd_results *handle_command(int argc, char **argv, char *cmd_name,
+		struct border_textures *class) {
+	if (!config->active) return cmd_results_new(CMD_DEFER, NULL);
+
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, cmd_name, EXPECTED_EQUAL_TO, 1))) {
+		return error;
+	}
+
+	char *src = strdup(argv[0]);
+	if (!expand_path(&src)) {
+		error = cmd_results_new(CMD_INVALID, "Invalid syntax (%s)", src);
+		free(src);
+		src = NULL;
+		return error;
+	}
+	if (!src) {
+		sway_log(SWAY_ERROR, "Failed to allocate expanded path");
+		return cmd_results_new(CMD_FAILURE, "Unable to allocate resource");
+	}
+
+	bool can_access = access(src, F_OK) != -1;
+	if (!can_access) {
+		sway_log_errno(SWAY_ERROR, "Unable to access border images file '%s'",
+				src);
+		config_add_swaynag_warning("Unable to access border images file '%s'",
+				src);
+	}
+
+	class->image_surface = cairo_image_surface_create_from_png(src);
+	apply_border_textures_for_class(class);
+
+	return cmd_results_new(CMD_SUCCESS, NULL);
+}
+
+struct cmd_results *cmd_border_images_focused(int argc, char **argv) {
+	return handle_command(argc, argv, "border_images.focused",
+			&config->border_textures.focused);
+}
+
+struct cmd_results *cmd_border_images_focused_inactive(int argc, char **argv) {
+	return handle_command(argc, argv, "border_images.focused_inactive",
+			&config->border_textures.focused_inactive);
+}
+
+struct cmd_results *cmd_border_images_unfocused(int argc, char **argv) {
+	return handle_command(argc, argv, "border_images.unfocused",
+			&config->border_textures.unfocused);
+}
+
+struct cmd_results *cmd_border_images_urgent(int argc, char **argv) {
+	return handle_command(argc, argv, "border_images.urgent",
+			&config->border_textures.urgent);
+}

sway/desktop/render.c

@@ -349,6 +349,7 @@ static void render_saved_view(struct sway_view *view,
 	// https://github.com/swaywm/sway/pull/4465#discussion_r321082059
 }
 
+
 /**
  * Render a view's surface and left/bottom/right borders.
  */
@@ -428,8 +429,8 @@ static void render_view(struct sway_output *output, pixman_region32_t *damage,
 static void render_titlebar(struct sway_output *output,
 		pixman_region32_t *output_damage, struct sway_container *con,
 		int x, int y, int width,
-		struct border_colors *colors, struct wlr_texture *title_texture,
-		struct wlr_texture *marks_texture) {
+		struct border_colors *colors,
+		struct wlr_texture *title_texture, struct wlr_texture *marks_texture) {
 	struct wlr_box box;
 	float color[4];
 	float output_scale = output->wlr_output->scale;
@@ -711,6 +712,211 @@ struct parent_data {
 	struct sway_container *active_child;
 };
 
+/**
+ * Render a single border texture.
+ */
+static void render_border_texture(struct sway_output *output,
+		pixman_region32_t *damage, struct wlr_box box, struct wlr_fbox src_box,
+		struct wlr_texture *texture, float alpha) {
+	struct wlr_output *wlr_output = output->wlr_output;
+
+	box.x -= output->lx;
+	box.y -= output->ly;
+	scale_box(&box, wlr_output->scale);
+
+	float matrix[9];
+	wlr_matrix_project_box(matrix, &box, WL_OUTPUT_TRANSFORM_NORMAL, 0.0,
+			output->wlr_output->transform_matrix);
+
+	pixman_region32_t texture_damage;
+	pixman_region32_init_rect(&texture_damage, box.x, box.y, box.width, box.height);
+	wlr_output_damage_add(output->damage, &texture_damage);
+	render_texture(wlr_output, damage, texture, &src_box, &box, matrix, alpha);
+}
+
+/**
+ * Render all border textures based on a given wlr_box.
+ */
+static void render_border_textures(struct sway_output *output,
+		pixman_region32_t *damage, struct wlr_box *full_box,
+		struct wlr_texture *texture, float alpha) {
+	if (!texture) {
+		return;
+	}
+
+	struct wlr_box box;
+	struct wlr_fbox src_box;
+	int tw = texture->width;
+	int th = texture->height;
+
+	// Top left corner
+	src_box.x = 0;
+	src_box.y = 0;
+	src_box.width = tw / 2;
+	src_box.height = th / 2;
+	box.x = full_box->x - src_box.width;
+	box.y = full_box->y - src_box.height;
+	box.width = src_box.width;
+	box.height = src_box.height;
+	render_border_texture(output, damage, box, src_box, texture, alpha);
+
+	// Top edge
+	src_box.x = tw / 2;
+	src_box.y = 0;
+	src_box.width = 1;
+	src_box.height = th / 2;
+	box.x = full_box->x;
+	box.y = full_box->y - src_box.height;
+	box.width = full_box->width;
+	box.height = src_box.height;
+	render_border_texture(output, damage, box, src_box, texture, alpha);
+
+	// Top right corner
+	src_box.x = tw / 2 + 1;
+	src_box.y = 0;
+	src_box.width = tw / 2;
+	src_box.height = th / 2;
+	box.x = full_box->x + full_box->width;
+	box.y = full_box->y - src_box.height;
+	box.width = src_box.width;
+	box.height = src_box.height;
+	render_border_texture(output, damage, box, src_box, texture, alpha);
+
+	// Right edge
+	src_box.x = tw / 2 + 1;
+	src_box.y = th / 2;
+	src_box.width = tw / 2;
+	src_box.height = 1;
+	box.x = full_box->x + full_box->width;
+	box.y = full_box->y;
+	box.width = src_box.width;
+	box.height = full_box->height;
+	render_border_texture(output, damage, box, src_box, texture, alpha);
+
+	// Bottom right corner
+	src_box.x = tw / 2 + 1;
+	src_box.y = th / 2 + 1;
+	src_box.width = tw / 2;
+	src_box.height = th / 2;
+	box.x = full_box->x + full_box->width;
+	box.y = full_box->y + full_box->height;
+	box.width = src_box.width;
+	box.height = src_box.height;
+	render_border_texture(output, damage, box, src_box, texture, alpha);
+
+	// Bottom edge
+	src_box.x = tw / 2;
+	src_box.y = th / 2 + 1;
+	src_box.width = 1;
+	src_box.height = th / 2;
+	box.x = full_box->x;
+	box.y = full_box->y + full_box->height;
+	box.width = full_box->width;
+	box.height = src_box.height;
+	render_border_texture(output, damage, box, src_box, texture, alpha);
+
+	// Bottom left corner
+	src_box.x = 0;
+	src_box.y = th / 2 + 1;
+	src_box.width = tw / 2;
+	src_box.height = th / 2;
+	box.x = full_box->x - src_box.width;
+	box.y = full_box->y + full_box->height;
+	box.width = src_box.width;
+	box.height = src_box.height;
+	render_border_texture(output, damage, box, src_box, texture, alpha);
+
+	// Left edge
+	src_box.x = 0;
+	src_box.y = th / 2;
+	src_box.width = tw / 2;
+	src_box.height = 1;
+	box.x = full_box->x - src_box.width;
+	box.y = full_box->y;
+	box.width = src_box.width;
+	box.height = full_box->height;
+	render_border_texture(output, damage, box, src_box, texture, alpha);
+}
+
+/**
+ * Determines which border texture class to render for a given container.
+ */
+struct border_textures *get_border_textures_for_container(
+		struct sway_container *con) {
+	if (container_has_urgent_child(con)) {
+		return &config->border_textures.urgent;
+	}
+	if (container_has_focused_child(con) || con->current.focused) {
+		return &config->border_textures.focused;
+	}
+	if (!con->pending.children) {
+		return &config->border_textures.unfocused;
+	}
+
+	for (int i = 0; i < con->pending.children->length; ++i) {
+		struct sway_container *child = con->pending.children->items[i];
+		if (child == con->current.focused_inactive_child) {
+			return &config->border_textures.focused_inactive;
+		}
+	}
+	return &config->border_textures.unfocused;
+}
+
+/**
+ * Render all of the border textures for a container.
+ */
+static void render_border_textures_for_container(struct sway_container *con,
+		struct sway_output *output, pixman_region32_t *damage) {
+	if (!con->pending.workspace) {
+		return;
+	}
+
+	struct sway_container *temp = con;
+	while (temp) {
+		enum sway_container_layout layout = container_parent_layout(temp);
+		if (layout == L_TABBED || layout == L_STACKED) {
+			return;
+		}
+		temp = temp->pending.parent;
+	}
+
+	enum sway_container_layout ws_layout = con->pending.workspace->layout;
+	if ((con->pending.layout == L_VERT || con->pending.layout == L_HORIZ) &&
+			(ws_layout == L_VERT || ws_layout == L_HORIZ)) {
+		return;
+	}
+
+	struct border_textures *textures = get_border_textures_for_container(con);;
+	struct sway_container_state *state = &con->current;
+	struct wlr_box box = {
+		.x = state->x,
+		.y = state->y,
+		.width = state->width,
+		.height = state->height,
+	};
+	render_border_textures(output, damage, &box, textures->texture, con->alpha);
+}
+
+/**
+ * Render the border textures for the overall layout of the container. A tabbed
+ * or stacked workspace layout means that all containers within the workspace
+ * are part of a single container, so a single border gets drawn.
+ */
+static void render_border_textures_for_workspace(struct sway_output *output,
+		pixman_region32_t *damage, struct sway_workspace *ws) {
+	if (ws->layout == L_TABBED || ws->layout == L_STACKED) {
+		struct wlr_box box;
+		workspace_get_box(ws, &box);
+
+		struct sway_container *con = ws->tiling->items[0];
+		if (ws->tiling->length == 0) {
+			return;
+		}
+		struct border_textures *textures = get_border_textures_for_container(con);
+		render_border_textures(output, damage, &box, textures->texture, con->alpha);
+	}
+}
+
 static void render_container(struct sway_output *output,
 	pixman_region32_t *damage, struct sway_container *con, bool parent_focused);
 
@@ -762,6 +968,8 @@ static void render_containers_linear(struct sway_output *output,
 			render_container(output, damage, child,
 					parent->focused || child->current.focused);
 		}
+
+		render_border_textures_for_container(child, output, damage);
 	}
 }
 
@@ -819,6 +1027,8 @@ static void render_containers_tabbed(struct sway_output *output,
 		if (child == current) {
 			current_colors = colors;
 		}
+
+		render_border_textures_for_container(child, output, damage);
 	}
 
 	// Render surface and left/right/bottom borders
@@ -873,11 +1083,14 @@ static void render_containers_stacked(struct sway_output *output,
 
 		int y = parent->box.y + titlebar_height * i;
 		render_titlebar(output, damage, child, parent->box.x, y,
-				parent->box.width, colors, title_texture, marks_texture);
+				parent->box.width, colors, title_texture,
+				marks_texture);
 
 		if (child == current) {
 			current_colors = colors;
 		}
+
+		render_border_textures_for_container(child, output, damage);
 	}
 
 	// Render surface and left/right/bottom borders
@@ -946,6 +1159,7 @@ static void render_workspace(struct sway_output *output,
 		.active_child = ws->current.focused_inactive_child,
 	};
 	render_containers(output, damage, &data);
+	render_border_textures_for_workspace(output, damage, ws);
 }
 
 static void render_floating_container(struct sway_output *soutput,
@@ -981,6 +1195,8 @@ static void render_floating_container(struct sway_output *soutput,
 	} else {
 		render_container(soutput, damage, con, con->current.focused);
 	}
+
+	render_border_textures_for_container(con, soutput, damage);
 }
 
 static void render_floating(struct sway_output *soutput,

sway/meson.build

@@ -41,10 +41,11 @@ sway_sources = files(
 	'config/input.c',
 
 	'commands/assign.c',
-  'commands/ttyaccess.c',
+	'commands/ttyaccess.c',
 	'commands/bar.c',
 	'commands/bind.c',
 	'commands/border.c',
+	'commands/border_images.c',
 	'commands/client.c',
 	'commands/create_output.c',
 	'commands/default_border.c',

sway/sway.5.scd

@@ -111,6 +111,30 @@ They are expected to be used with *bindsym* or at runtime through *swaymsg*(1).
 *border* toggle
 	Cycles through the available border styles.
 
+*border_images.<class>* <path>
+	Configures the images used for borders. The _path_ is expected to be an
+	absolute path to an image with an odd width and height which will be scaled to
+	container sizes. The edges are expected to be 1 pixel in width for top and
+	bottom edges, and 1 pixel in height for left edges as they will be stretched
+	across container edges.
+
+	For the classes below, "container" refers to a container which has gaps
+	around it. The available classes are:
+
+	*border_images.focused*
+		The container which is focused or has a window that has focus.
+
+	*border_images.focused_inactive*
+		The container which has the most recently focused view within a container
+		which is not focused.
+
+	*border_images.unfocused*
+		A container with all of its views unfocused.
+
+	*border_images.urgent*
+		A container which has view with an urgency hint. *Note*: Native Wayland windows do not
+		support urgency. Urgency only works for Xwayland windows.
+
 *exit*
 	Exit sway and end your Wayland session.
 
@@ -154,9 +178,10 @@ They are expected to be used with *bindsym* or at runtime through *swaymsg*(1).
 	is now. If no argument is given, it does the same as _toggle_. If _global_
 	is specified, the view will be fullscreen across all outputs.
 
-*ttyaccess* enable|disable
+*ttyaccess* enable|disable|toggle
 	Do not switch VTs, block tty access.
 
+
 *gaps* inner|outer|horizontal|vertical|top|right|bottom|left all|current
 set|plus|minus <amount>
 	Changes the _inner_ or _outer_ gaps for either _all_ workspaces or the

sway/tree/workspace.c

@@ -688,14 +688,18 @@ void workspace_detect_urgent(struct sway_workspace *workspace) {
 	}
 }
 
-void workspace_for_each_container(struct sway_workspace *ws,
+void workspace_for_each_tiling_container(struct sway_workspace *ws,
 		void (*f)(struct sway_container *con, void *data), void *data) {
-	// Tiling
 	for (int i = 0; i < ws->tiling->length; ++i) {
 		struct sway_container *container = ws->tiling->items[i];
 		f(container, data);
 		container_for_each_child(container, f, data);
 	}
+}
+
+void workspace_for_each_container(struct sway_workspace *ws,
+		void (*f)(struct sway_container *con, void *data), void *data) {
+	workspace_for_each_tiling_container(ws, f, data);
 	// Floating
 	for (int i = 0; i < ws->floating->length; ++i) {
 		struct sway_container *container = ws->floating->items[i];