Merge branch 'wlroots' into split-containers2

include/sway/input/seat.h

@@ -1,6 +1,7 @@
 #ifndef _SWAY_INPUT_SEAT_H
 #define _SWAY_INPUT_SEAT_H
 
+#include <wlr/types/wlr_layer_shell.h>
 #include <wlr/types/wlr_seat.h>
 #include "sway/input/input-manager.h"
 
@@ -28,6 +29,9 @@ struct sway_seat {
 	bool has_focus;
 	struct wl_list focus_stack; // list of containers in focus order
 
+	// If the focused layer is set, views cannot receive keyboard focus
+	struct wlr_layer_surface *focused_layer;
+
 	struct wl_listener focus_destroy;
 	struct wl_listener new_container;
 
@@ -57,6 +61,9 @@ void seat_set_focus(struct sway_seat *seat, struct sway_container *container);
 void seat_set_focus_warp(struct sway_seat *seat,
 		struct sway_container *container, bool warp);
 
+void seat_set_focus_layer(struct sway_seat *seat,
+		struct wlr_layer_surface *layer);
+
 struct sway_container *seat_get_focus(struct sway_seat *seat);
 
 /**

include/swaybar/bar.h

@@ -58,6 +58,7 @@ struct swaybar_output {
 	bool focused;
 
 	uint32_t width, height;
+	int32_t scale;
 	struct pool_buffer buffers[2];
 	struct pool_buffer *current_buffer;
 };

sway/config/output.c

@@ -123,11 +123,14 @@ void terminate_swaybg(pid_t pid) {
 void apply_output_config(struct output_config *oc, struct sway_container *output) {
 	assert(output->type == C_OUTPUT);
 
+	struct wlr_output_layout *output_layout =
+		root_container.sway_root->output_layout;
 	struct wlr_output *wlr_output = output->sway_output->wlr_output;
+
 	if (oc && oc->enabled == 0) {
+		container_destroy(output);
 		wlr_output_layout_remove(root_container.sway_root->output_layout,
 			wlr_output);
-		container_destroy(output);
 		return;
 	}
 
@@ -148,11 +151,9 @@ void apply_output_config(struct output_config *oc, struct sway_container *output
 	// Find position for it
 	if (oc && (oc->x != -1 || oc->y != -1)) {
 		wlr_log(L_DEBUG, "Set %s position to %d, %d", oc->name, oc->x, oc->y);
-		wlr_output_layout_add(root_container.sway_root->output_layout,
-			wlr_output, oc->x, oc->y);
+		wlr_output_layout_add(output_layout, wlr_output, oc->x, oc->y);
 	} else {
-		wlr_output_layout_add_auto(root_container.sway_root->output_layout,
-			wlr_output);
+		wlr_output_layout_add_auto(output_layout, wlr_output);
 	}
 
 	if (!oc || !oc->background) {

sway/desktop/layer_shell.c

@@ -7,6 +7,8 @@
 #include <wlr/types/wlr_output_damage.h>
 #include <wlr/types/wlr_output.h>
 #include <wlr/util/log.h>
+#include "sway/input/input-manager.h"
+#include "sway/input/seat.h"
 #include "sway/layers.h"
 #include "sway/output.h"
 #include "sway/server.h"
@@ -187,6 +189,31 @@ void arrange_layers(struct sway_output *output) {
 			&usable_area, false);
 	arrange_layer(output, &output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND],
 			&usable_area, false);
+
+	// Find topmost keyboard interactive layer, if such a layer exists
+	uint32_t layers_above_shell[] = {
+		ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY,
+		ZWLR_LAYER_SHELL_V1_LAYER_TOP,
+	};
+	size_t nlayers = sizeof(layers_above_shell) / sizeof(layers_above_shell[0]);
+	struct sway_layer_surface *layer, *topmost = NULL;
+	for (size_t i = 0; i < nlayers; ++i) {
+		wl_list_for_each_reverse(layer,
+				&output->layers[layers_above_shell[i]], link) {
+			if (layer->layer_surface->current.keyboard_interactive) {
+				topmost = layer;
+				break;
+			}
+		}
+		if (topmost != NULL) {
+			break;
+		}
+	}
+
+	struct sway_seat *seat;
+	wl_list_for_each(seat, &input_manager->seats, link) {
+		seat_set_focus_layer(seat, topmost ? topmost->layer_surface : NULL);
+	}
 }
 
 static void handle_output_destroy(struct wl_listener *listener, void *data) {
@@ -251,6 +278,8 @@ static void handle_map(struct wl_listener *listener, void *data) {
 			sway_layer, map);
 	struct sway_output *output = sway_layer->layer_surface->output->data;
 	wlr_output_damage_add_box(output->damage, &sway_layer->geo);
+	wlr_surface_send_enter(sway_layer->layer_surface->surface,
+		sway_layer->layer_surface->output);
 }
 
 static void handle_unmap(struct wl_listener *listener, void *data) {

sway/desktop/output.c

@@ -57,10 +57,7 @@ static void rotate_child_position(double *sx, double *sy, double sw, double sh,
  */
 static bool surface_intersect_output(struct wlr_surface *surface,
 		struct wlr_output_layout *output_layout, struct wlr_output *wlr_output,
-		double lx, double ly, float rotation, struct wlr_box *box) {
-	double ox = lx, oy = ly;
-	wlr_output_layout_output_coords(output_layout, wlr_output, &ox, &oy);
-
+		double ox, double oy, float rotation, struct wlr_box *box) {
 	if (box != NULL) {
 		box->x = ox * wlr_output->scale;
 		box->y = oy * wlr_output->scale;
@@ -69,7 +66,7 @@ static bool surface_intersect_output(struct wlr_surface *surface,
 	}
 
 	struct wlr_box layout_box = {
-		.x = lx, .y = ly,
+		.x = wlr_output->lx + ox, .y = wlr_output->ly + oy,
 		.width = surface->current->width, .height = surface->current->height,
 	};
 	wlr_box_rotated_bounds(&layout_box, rotation, &layout_box);
@@ -78,7 +75,7 @@ static bool surface_intersect_output(struct wlr_surface *surface,
 
 static void render_surface(struct wlr_surface *surface,
 		struct wlr_output *wlr_output, struct timespec *when,
-		double lx, double ly, float rotation) {
+		double ox, double oy, float rotation) {
 	struct wlr_renderer *renderer =
 		wlr_backend_get_renderer(wlr_output->backend);
 
@@ -90,7 +87,7 @@ static void render_surface(struct wlr_surface *surface,
 
 	struct wlr_box box;
 	bool intersects = surface_intersect_output(surface, layout, wlr_output,
-		lx, ly, rotation, &box);
+		ox, oy, rotation, &box);
 	if (intersects) {
 		float matrix[9];
 		enum wl_output_transform transform =
@@ -113,7 +110,7 @@ static void render_surface(struct wlr_surface *surface,
 			surface->current->width, surface->current->height, rotation);
 
 		render_surface(subsurface->surface, wlr_output, when,
-			lx + sx, ly + sy, rotation);
+			ox + sx, oy + sy, rotation);
 	}
 }
 
@@ -211,9 +208,7 @@ static void render_view(struct sway_container *view, void *data) {
 	}
 }
 
-static void render_layer(struct sway_output *output,
-		const struct wlr_box *output_layout_box,
-		struct timespec *when,
+static void render_layer(struct sway_output *output, struct timespec *when,
 		struct wl_list *layer) {
 	struct sway_layer_surface *sway_layer;
 	wl_list_for_each(sway_layer, layer, link) {
@@ -245,14 +240,15 @@ static void render_output(struct sway_output *output, struct timespec *when,
 	float clear_color[] = {0.25f, 0.25f, 0.25f, 1.0f};
 	wlr_renderer_clear(renderer, clear_color);
 
-	struct wlr_output_layout *layout = root_container.sway_root->output_layout;
+	struct wlr_output_layout *output_layout =
+		root_container.sway_root->output_layout;
 	const struct wlr_box *output_box =
-			wlr_output_layout_get_box(layout, wlr_output);
+		wlr_output_layout_get_box(output_layout, wlr_output);
 
-	render_layer(output, output_box, when,
-			&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND]);
-	render_layer(output, output_box, when,
-			&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM]);
+	render_layer(output, when,
+		&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND]);
+	render_layer(output, when,
+		&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM]);
 
 	struct sway_seat *seat = input_manager_current_seat(input_manager);
 	struct sway_container *focus =
@@ -262,7 +258,7 @@ static void render_output(struct sway_output *output, struct timespec *when,
 		focus = output->swayc->children->items[0];
 	}
 	struct sway_container *workspace = focus->type == C_WORKSPACE ?
-			focus : container_parent(focus, C_WORKSPACE);
+		focus : container_parent(focus, C_WORKSPACE);
 
 	struct render_data rdata = {
 		.output = output,
@@ -296,10 +292,10 @@ static void render_output(struct sway_output *output, struct timespec *when,
 	}
 
 	// TODO: Consider revising this when fullscreen windows are supported
-	render_layer(output, output_box, when,
-			&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP]);
-	render_layer(output, output_box, when,
-			&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY]);
+	render_layer(output, when,
+		&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP]);
+	render_layer(output, when,
+		&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY]);
 
 renderer_end:
 	wlr_renderer_end(renderer);

sway/input/cursor.c

@@ -180,13 +180,18 @@ static void handle_cursor_button(struct wl_listener *listener, void *data) {
 	double sx, sy;
 	struct sway_container *cont =
 		container_at_cursor(cursor, &surface, &sx, &sy);
+	if (surface && wlr_surface_is_layer_surface(surface)) {
+		struct wlr_layer_surface *layer =
+			wlr_layer_surface_from_wlr_surface(surface);
+		if (layer->current.keyboard_interactive) {
+			seat_set_focus_layer(cursor->seat, layer);
+			return;
+		}
+	}
 	// Avoid moving keyboard focus from a surface that accepts it to one
 	// that does not unless the change would move us to a new workspace.
 	//
 	// This prevents, for example, losing focus when clicking on swaybar.
-	//
-	// TODO: Replace this condition with something like
-	// !surface_accepts_keyboard_input
 	if (surface && cont && cont->type != C_VIEW) {
 		struct sway_container *new_ws = cont;
 		if (new_ws && new_ws->type != C_WORKSPACE) {

sway/input/seat.c

@@ -352,8 +352,11 @@ void seat_configure_xcursor(struct sway_seat *seat) {
 
 void seat_set_focus_warp(struct sway_seat *seat,
 		struct sway_container *container, bool warp) {
-	struct sway_container *last_focus = seat_get_focus(seat);
+	if (seat->focused_layer) {
+		return;
+	}
 
+	struct sway_container *last_focus = seat_get_focus(seat);
 	if (container && last_focus == container) {
 		return;
 	}
@@ -419,6 +422,37 @@ void seat_set_focus(struct sway_seat *seat,
 	seat_set_focus_warp(seat, container, true);
 }
 
+void seat_set_focus_layer(struct sway_seat *seat,
+		struct wlr_layer_surface *layer) {
+	if (!layer) {
+		seat->focused_layer = NULL;
+		return;
+	}
+	if (seat->focused_layer == layer) {
+		return;
+	}
+	if (seat->has_focus) {
+		struct sway_container *focus = seat_get_focus(seat);
+		if (focus->type == C_VIEW) {
+			wlr_seat_keyboard_clear_focus(seat->wlr_seat);
+			view_set_activated(focus->sway_view, false);
+		}
+	}
+	if (layer->layer >= ZWLR_LAYER_SHELL_V1_LAYER_TOP) {
+		seat->focused_layer = layer;
+	}
+	struct wlr_keyboard *keyboard =
+		wlr_seat_get_keyboard(seat->wlr_seat);
+	if (keyboard) {
+		wlr_seat_keyboard_notify_enter(seat->wlr_seat,
+				layer->surface, keyboard->keycodes,
+				keyboard->num_keycodes, &keyboard->modifiers);
+	} else {
+		wlr_seat_keyboard_notify_enter(seat->wlr_seat,
+				layer->surface, NULL, 0, NULL);
+	}
+}
+
 struct sway_container *seat_get_focus_inactive(struct sway_seat *seat,
 		struct sway_container *container) {
 	return seat_get_focus_by_type(seat, container, C_TYPES);

sway/tree/layout.c

@@ -18,10 +18,14 @@
 
 struct sway_container root_container;
 
-static void output_layout_change_notify(struct wl_listener *listener,
+static void output_layout_handle_change(struct wl_listener *listener,
 		void *data) {
-	struct wlr_box *layout_box = wlr_output_layout_get_box(
-		root_container.sway_root->output_layout, NULL);
+	struct wlr_output_layout *output_layout =
+		root_container.sway_root->output_layout;
+	const struct wlr_box *layout_box =
+		wlr_output_layout_get_box(output_layout, NULL);
+	root_container.x = layout_box->x;
+	root_container.y = layout_box->y;
 	root_container.width = layout_box->width;
 	root_container.height = layout_box->height;
 
@@ -33,8 +37,8 @@ static void output_layout_change_notify(struct wl_listener *listener,
 		}
 		struct sway_output *output = output_container->sway_output;
 
-		struct wlr_box *output_box = wlr_output_layout_get_box(
-			root_container.sway_root->output_layout, output->wlr_output);
+		const struct wlr_box *output_box =
+			wlr_output_layout_get_box(output_layout, output->wlr_output);
 		if (!output_box) {
 			continue;
 		}
@@ -74,7 +78,7 @@ void layout_init(void) {
 	wl_signal_init(&root_container.sway_root->events.new_container);
 
 	root_container.sway_root->output_layout_change.notify =
-		output_layout_change_notify;
+		output_layout_handle_change;
 	wl_signal_add(&root_container.sway_root->output_layout->events.change,
 		&root_container.sway_root->output_layout_change);
 }

sway/tree/workspace.c

@@ -139,6 +139,24 @@ char *workspace_next_name(const char *output_name) {
 				continue;
 			}
 
+			// If the command is workspace number <name>, isolate the name
+			if (strncmp(_target, "number ", strlen("number ")) == 0) {
+				size_t length = strlen(_target) - strlen("number ") + 1;
+				char *temp = malloc(length);
+				strncpy(temp, _target + strlen("number "), length - 1);
+				temp[length - 1] = '\0';
+				free(_target);
+				_target = temp;
+				wlr_log(L_DEBUG, "Isolated name from workspace number: '%s'", _target);
+
+				// Make sure the workspace number doesn't already exist
+				if (workspace_by_number(_target)) {
+					free(_target);
+					free(dup);
+					continue;
+				}
+			}
+
 			// Make sure that the workspace doesn't already exist
 			if (workspace_by_name(_target)) {
 				free(_target);

swaybar/bar.c

@@ -69,11 +69,19 @@ static void wl_pointer_enter(void *data, struct wl_pointer *wl_pointer,
 			break;
 		}
 	}
+	int max_scale = 1;
+	struct swaybar_output *_output;
+	wl_list_for_each(_output, &bar->outputs, link) {
+		if (_output->scale > max_scale) {
+			max_scale = _output->scale;
+		}
+	}
+	wl_surface_set_buffer_scale(pointer->cursor_surface, max_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,
-			pointer->cursor_image->hotspot_y);
+			pointer->cursor_image->hotspot_x / max_scale,
+			pointer->cursor_image->hotspot_y / max_scale);
 	wl_surface_commit(pointer->cursor_surface);
 }
 
@@ -103,10 +111,12 @@ static void wl_pointer_button(void *data, struct wl_pointer *wl_pointer,
 	}
 	struct swaybar_hotspot *hotspot;
 	wl_list_for_each(hotspot, &output->hotspots, link) {
-		if (pointer->x >= hotspot->x
-				&& pointer->y >= hotspot->y
-				&& pointer->x < hotspot->x + hotspot->width
-				&& pointer->y < hotspot->y + hotspot->height) {
+		double x = pointer->x * output->scale;
+		double y = pointer->y * output->scale;
+		if (x >= hotspot->x
+				&& y >= hotspot->y
+				&& x < hotspot->x + hotspot->width
+				&& y < hotspot->y + hotspot->height) {
 			hotspot->callback(output, pointer->x, pointer->y,
 					button, hotspot->data);
 		}
@@ -197,12 +207,43 @@ const struct wl_seat_listener seat_listener = {
 	.name = seat_handle_name,
 };
 
+static void output_geometry(void *data, struct wl_output *output, int32_t x,
+		int32_t y, int32_t width_mm, int32_t height_mm, int32_t subpixel,
+		const char *make, const char *model, int32_t transform) {
+	// Who cares
+}
+
+static void output_mode(void *data, struct wl_output *output, uint32_t flags,
+		int32_t width, int32_t height, int32_t refresh) {
+	// Who cares
+}
+
+static void output_done(void *data, struct wl_output *output) {
+	// Who cares
+}
+
+static void output_scale(void *data, struct wl_output *wl_output,
+		int32_t factor) {
+	struct swaybar_output *output = data;
+	output->scale = factor;
+	if (output->surface) {
+		render_frame(output->bar, output);
+	}
+}
+
+struct wl_output_listener output_listener = {
+	.geometry = output_geometry,
+	.mode = output_mode,
+	.done = output_done,
+	.scale = output_scale,
+};
+
 static void handle_global(void *data, struct wl_registry *registry,
 		uint32_t name, const char *interface, uint32_t version) {
 	struct swaybar *bar = data;
 	if (strcmp(interface, wl_compositor_interface.name) == 0) {
 		bar->compositor = wl_registry_bind(registry, name,
-				&wl_compositor_interface, 1);
+				&wl_compositor_interface, 3);
 	} else if (strcmp(interface, wl_seat_interface.name) == 0) {
 		bar->seat = wl_registry_bind(registry, name,
 				&wl_seat_interface, 1);
@@ -216,7 +257,9 @@ static void handle_global(void *data, struct wl_registry *registry,
 			calloc(1, sizeof(struct swaybar_output));
 		output->bar = bar;
 		output->output = wl_registry_bind(registry, name,
-				&wl_output_interface, 1);
+				&wl_output_interface, 3);
+		wl_output_add_listener(output->output, &output_listener, output);
+		output->scale = 1;
 		output->index = index++;
 		wl_list_init(&output->workspaces);
 		wl_list_init(&output->hotspots);
@@ -256,24 +299,36 @@ void bar_setup(struct swaybar *bar,
 		bar->status = status_line_init(bar->config->status_command);
 	}
 
-	assert(bar->display = wl_display_connect(NULL));
+	bar->display = wl_display_connect(NULL);
+	assert(bar->display);
 
 	struct wl_registry *registry = wl_display_get_registry(bar->display);
 	wl_registry_add_listener(registry, &registry_listener, bar);
 	wl_display_roundtrip(bar->display);
 	assert(bar->compositor && bar->layer_shell && bar->shm);
+	wl_display_roundtrip(bar->display);
+
 	struct swaybar_pointer *pointer = &bar->pointer;
 
-	assert(pointer->cursor_theme = wl_cursor_theme_load(NULL, 16, bar->shm));
+	int max_scale = 1;
+	struct swaybar_output *output;
+	wl_list_for_each(output, &bar->outputs, link) {
+		if (output->scale > max_scale) {
+			max_scale = output->scale;
+		}
+	}
+
+	pointer->cursor_theme = wl_cursor_theme_load(
+				NULL, 24 * max_scale, bar->shm);
+	assert(pointer->cursor_theme);
 	struct wl_cursor *cursor;
-	assert(cursor = wl_cursor_theme_get_cursor(
-				pointer->cursor_theme, "left_ptr"));
+	cursor = wl_cursor_theme_get_cursor(pointer->cursor_theme, "left_ptr");
+	assert(cursor);
 	pointer->cursor_image = cursor->images[0];
-	assert(pointer->cursor_surface =
-			wl_compositor_create_surface(bar->compositor));
+	pointer->cursor_surface = wl_compositor_create_surface(bar->compositor);
+	assert(pointer->cursor_surface);
 
 	// TODO: we might not necessarily be meant to do all of the outputs
-	struct swaybar_output *output;
 	wl_list_for_each(output, &bar->outputs, link) {
 		struct config_output *coutput;
 		wl_list_for_each(coutput, &bar->config->outputs, link) {
@@ -281,8 +336,8 @@ void bar_setup(struct swaybar *bar,
 				continue;
 			}
 			output->name = strdup(coutput->name);
-			assert(output->surface = wl_compositor_create_surface(
-					bar->compositor));
+			output->surface = wl_compositor_create_surface(bar->compositor);
+			assert(output->surface);
 			output->layer_surface = zwlr_layer_shell_v1_get_layer_surface(
 					bar->layer_shell, output->surface, output->output,
 					ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM, "panel");

swaybar/i3bar.c

@@ -203,6 +203,9 @@ void i3bar_block_send_click(struct status_line *status,
 	json_object_object_add(event_json, "button", json_object_new_int(button));
 	json_object_object_add(event_json, "x", json_object_new_int(x));
 	json_object_object_add(event_json, "y", json_object_new_int(y));
-	dprintf(status->write_fd, "%s\n", json_object_to_json_string(event_json));
+	if (dprintf(status->write_fd, "%s\n",
+				json_object_to_json_string(event_json)) < 0) {
+		status_error(status, "[failed to write click event]");
+	}
 	json_object_put(event_json);
 }

swaybar/render.c

@@ -14,55 +14,72 @@
 #include "swaybar/status_line.h"
 #include "wlr-layer-shell-unstable-v1-client-protocol.h"
 
-static const int ws_horizontal_padding = 5;
-static const double ws_vertical_padding = 1.5;
-static const double border_width = 1;
+static const int WS_HORIZONTAL_PADDING = 5;
+static const double WS_VERTICAL_PADDING = 1.5;
+static const double BORDER_WIDTH = 1;
 
 static uint32_t render_status_line_error(cairo_t *cairo,
-		struct swaybar_config *config, const char *error,
-		double *x, uint32_t width, uint32_t height) {
+		struct swaybar_output *output, struct swaybar_config *config,
+		const char *error, double *x, uint32_t surface_height) {
 	if (!error) {
 		return 0;
 	}
+
+	uint32_t height = surface_height * output->scale;
+
 	cairo_set_source_u32(cairo, 0xFF0000FF);
-	static const int margin = 3;
+
+	int margin = 3 * output->scale;
+	int ws_vertical_padding = WS_VERTICAL_PADDING * output->scale;
+
 	int text_width, text_height;
 	get_text_size(cairo, config->font,
-			&text_width, &text_height, 1, false, "%s", error);
+			&text_width, &text_height, output->scale, false, "%s", error);
+
 	uint32_t ideal_height = text_height + ws_vertical_padding * 2;
 	if (height < ideal_height) {
-		return ideal_height;
+		return ideal_height / output->scale;
 	}
 	*x -= text_width + margin;
+
 	double text_y = height / 2.0 - text_height / 2.0;
 	cairo_move_to(cairo, *x, (int)floor(text_y));
-	pango_printf(cairo, config->font, 1, false, "%s", error);
+	pango_printf(cairo, config->font, output->scale, false, "%s", error);
 	*x -= margin;
-	return ideal_height;
+	return ideal_height / output->scale;
 }
 
 static uint32_t render_status_line_text(cairo_t *cairo,
-		struct swaybar_config *config, const char *text,
-		bool focused, double *x, uint32_t width, uint32_t height) {
+		struct swaybar_output *output, struct swaybar_config *config,
+		const char *text, bool focused, double *x, uint32_t surface_height) {
 	if (!text) {
 		return 0;
 	}
+
+	uint32_t height = surface_height * output->scale;
+
 	cairo_set_source_u32(cairo, focused ?
 			config->colors.focused_statusline : config->colors.statusline);
-	static const int margin = 3;
+
 	int text_width, text_height;
 	get_text_size(cairo, config->font, &text_width, &text_height,
-			1, config->pango_markup, "%s", text);
+			output->scale, config->pango_markup, "%s", text);
+
+	int ws_vertical_padding = WS_VERTICAL_PADDING * output->scale;
+	int margin = 3 * output->scale;
+
 	uint32_t ideal_height = text_height + ws_vertical_padding * 2;
 	if (height < ideal_height) {
-		return ideal_height;
+		return ideal_height / output->scale;
 	}
+
 	*x -= text_width + margin;
 	double text_y = height / 2.0 - text_height / 2.0;
 	cairo_move_to(cairo, *x, (int)floor(text_y));
-	pango_printf(cairo, config->font, 1, config->pango_markup, "%s", text);
+	pango_printf(cairo, config->font, output->scale,
+			config->pango_markup, "%s", text);
 	*x -= margin;
-	return ideal_height;
+	return ideal_height / output->scale;
 }
 
 static void render_sharp_line(cairo_t *cairo, uint32_t color,
@@ -99,23 +116,29 @@ static void block_hotspot_callback(struct swaybar_output *output,
 static uint32_t render_status_block(cairo_t *cairo,
 		struct swaybar_config *config, struct swaybar_output *output,
 		struct i3bar_block *block, double *x,
-		uint32_t height, bool focused, bool edge) {
-	static const int margin = 3;
+		uint32_t surface_height, bool focused, bool edge) {
 	if (!block->full_text || !*block->full_text) {
 		return 0;
 	}
 
+	uint32_t height = surface_height * output->scale;
+
 	int text_width, text_height;
 	get_text_size(cairo, config->font, &text_width, &text_height,
-			1, block->markup, "%s", block->full_text);
+			output->scale, block->markup, "%s", block->full_text);
+
+	int margin = 3 * output->scale;
+	int ws_vertical_padding = WS_VERTICAL_PADDING * 2;
+
 	int width = text_width;
 	if (width < block->min_width) {
 		width = block->min_width;
 	}
+
 	double block_width = width;
 	uint32_t ideal_height = text_height + ws_vertical_padding * 2;
 	if (height < ideal_height) {
-		return ideal_height;
+		return ideal_height / output->scale;
 	}
 
 	*x -= width;
@@ -133,10 +156,10 @@ static uint32_t render_status_block(cairo_t *cairo,
 		if (config->sep_symbol) {
 			int _height;
 			get_text_size(cairo, config->font, &sep_width, &_height,
-					1, false, "%s", config->sep_symbol);
+					output->scale, false, "%s", config->sep_symbol);
 			uint32_t _ideal_height = _height + ws_vertical_padding * 2;
-			if (height < _ideal_height) {
-				return _height;
+			if ((uint32_t)_height < _ideal_height / output->scale) {
+				return _height / output->scale;
 			}
 			if (sep_width > block->separator_block_width) {
 				block->separator_block_width = sep_width + margin * 2;
@@ -160,22 +183,26 @@ static uint32_t render_status_block(cairo_t *cairo,
 	double pos = *x;
 	if (block->background) {
 		cairo_set_source_u32(cairo, block->background);
-		cairo_rectangle(cairo, pos - 0.5, 1, block_width, height);
+		cairo_rectangle(cairo, pos - 0.5 * output->scale,
+				output->scale, block_width, height);
 		cairo_fill(cairo);
 	}
 
 	if (block->border && block->border_top > 0) {
 		render_sharp_line(cairo, block->border,
-				pos - 0.5, 1, block_width, block->border_top);
+				pos - 0.5 * output->scale, output->scale,
+				block_width, block->border_top);
 	}
 	if (block->border && block->border_bottom > 0) {
 		render_sharp_line(cairo, block->border,
-				pos - 0.5, height - 1 - block->border_bottom,
+				pos - 0.5 * output->scale,
+				height - output->scale - block->border_bottom,
 				block_width, block->border_bottom);
 	}
 	if (block->border != 0 && block->border_left > 0) {
 		render_sharp_line(cairo, block->border,
-				pos - 0.5, 1, block->border_left, height);
+				pos - 0.5 * output->scale, output->scale,
+				block->border_left, height);
 		pos += block->border_left + margin;
 	}
 
@@ -190,13 +217,15 @@ static uint32_t render_status_block(cairo_t *cairo,
 	cairo_move_to(cairo, offset, height / 2.0 - text_height / 2.0);
 	uint32_t color = block->color ?  *block->color : config->colors.statusline;
 	cairo_set_source_u32(cairo, color);
-	pango_printf(cairo, config->font, 1, block->markup, "%s", block->full_text);
+	pango_printf(cairo, config->font, output->scale,
+			block->markup, "%s", block->full_text);
 	pos += width;
 
 	if (block->border && block->border_right > 0) {
 		pos += margin;
 		render_sharp_line(cairo, block->border,
-				pos - 0.5, 1, block->border_right, height);
+				pos - 0.5 * output->scale, output->scale,
+				block->border_right, height);
 		pos += block->border_right;
 	}
 
@@ -209,7 +238,7 @@ static uint32_t render_status_block(cairo_t *cairo,
 		if (config->sep_symbol) {
 			offset = pos + (block->separator_block_width - sep_width) / 2;
 			cairo_move_to(cairo, offset, margin);
-			pango_printf(cairo, config->font, 1, false,
+			pango_printf(cairo, config->font, output->scale, false,
 					"%s", config->sep_symbol);
 		} else {
 			cairo_set_line_width(cairo, 1);
@@ -220,19 +249,19 @@ static uint32_t render_status_block(cairo_t *cairo,
 			cairo_stroke(cairo);
 		}
 	}
-	return ideal_height;
+	return ideal_height / output->scale;
 }
 
 static uint32_t render_status_line_i3bar(cairo_t *cairo,
 		struct swaybar_config *config, struct swaybar_output *output,
 		struct status_line *status, bool focused,
-		double *x, uint32_t width, uint32_t height) {
+		double *x, uint32_t surface_height) {
 	uint32_t max_height = 0;
 	bool edge = true;
 	struct i3bar_block *block;
 	wl_list_for_each(block, &status->blocks, link) {
 		uint32_t h = render_status_block(cairo, config, output,
-				block, x, height, focused, edge);
+				block, x, surface_height, focused, edge);
 		max_height = h > max_height ? h : max_height;
 		edge = false;
 	}
@@ -242,17 +271,17 @@ static uint32_t render_status_line_i3bar(cairo_t *cairo,
 static uint32_t render_status_line(cairo_t *cairo,
 		struct swaybar_config *config, struct swaybar_output *output,
 		struct status_line *status, bool focused,
-		double *x, uint32_t width, uint32_t height) {
+		double *x, uint32_t surface_height) {
 	switch (status->protocol) {
 	case PROTOCOL_ERROR:
-		return render_status_line_error(cairo,
-				config, status->text, x, width, height);
+		return render_status_line_error(cairo, output, config,
+				status->text, x, surface_height);
 	case PROTOCOL_TEXT:
-		return render_status_line_text(cairo,
-				config, status->text, focused, x, width, height);
+		return render_status_line_text(cairo, output, config,
+				status->text, focused, x, surface_height);
 	case PROTOCOL_I3BAR:
-		return render_status_line_i3bar(cairo, config, output, status,
-				focused, x, width, height);
+		return render_status_line_i3bar(cairo, config, output,
+				status, focused, x, surface_height);
 	case PROTOCOL_UNDEF:
 		return 0;
 	}
@@ -260,15 +289,23 @@ static uint32_t render_status_line(cairo_t *cairo,
 }
 
 static uint32_t render_binding_mode_indicator(cairo_t *cairo,
-		struct swaybar_config *config, const char *mode, double x,
-		uint32_t height) {
+		struct swaybar_output *output, struct swaybar_config *config,
+		const char *mode, double x, uint32_t surface_height) {
+
+	uint32_t height = surface_height * output->scale;
+
 	int text_width, text_height;
 	get_text_size(cairo, config->font, &text_width, &text_height,
-			1, true, "%s", mode);
+			output->scale, true, "%s", mode);
+
+	int ws_vertical_padding = WS_VERTICAL_PADDING * output->scale;
+	int ws_horizontal_padding = WS_HORIZONTAL_PADDING * output->scale;
+	int border_width = BORDER_WIDTH * output->scale;
+
 	uint32_t ideal_height = text_height + ws_vertical_padding * 2
 		+ border_width * 2;
 	if (height < ideal_height) {
-		return ideal_height;
+		return ideal_height / output->scale;
 	}
 	uint32_t width = text_width + ws_horizontal_padding * 2 + border_width * 2;
 
@@ -289,8 +326,8 @@ static uint32_t render_binding_mode_indicator(cairo_t *cairo,
 	double text_y = height / 2.0 - text_height / 2.0;
 	cairo_set_source_u32(cairo, config->colors.binding_mode.text);
 	cairo_move_to(cairo, x + width / 2 - text_width / 2, (int)floor(text_y));
-	pango_printf(cairo, config->font, 1, true, "%s", mode);
-	return ideal_height;
+	pango_printf(cairo, config->font, output->scale, true, "%s", mode);
+	return ideal_height / output->scale;
 }
 
 static const char *strip_workspace_number(const char *ws_name) {
@@ -313,7 +350,7 @@ static void workspace_hotspot_callback(struct swaybar_output *output,
 
 static uint32_t render_workspace_button(cairo_t *cairo,
 		struct swaybar_output *output, struct swaybar_config *config,
-		struct swaybar_workspace *ws, double *x, uint32_t height) {
+		struct swaybar_workspace *ws, double *x, uint32_t surface_height) {
 	const char *name = ws->name;
 	if (config->strip_workspace_numbers) {
 		name = strip_workspace_number(ws->name);
@@ -330,14 +367,22 @@ static uint32_t render_workspace_button(cairo_t *cairo,
 		box_colors = config->colors.inactive_workspace;
 	}
 
+	uint32_t height = surface_height * output->scale;
+
 	int text_width, text_height;
 	get_text_size(cairo, config->font, &text_width, &text_height,
-			1, true, "%s", name);
+			output->scale, true, "%s", name);
+
+	int ws_vertical_padding = WS_VERTICAL_PADDING * output->scale;
+	int ws_horizontal_padding = WS_HORIZONTAL_PADDING * output->scale;
+	int border_width = BORDER_WIDTH * output->scale;
+
 	uint32_t ideal_height = ws_vertical_padding * 2 + text_height
 		+ border_width * 2;
 	if (height < ideal_height) {
-		return ideal_height;
+		return ideal_height / output->scale;
 	}
+
 	uint32_t width = ws_horizontal_padding * 2 + text_width + border_width * 2;
 
 	cairo_set_source_u32(cairo, box_colors.background);
@@ -357,7 +402,7 @@ static uint32_t render_workspace_button(cairo_t *cairo,
 	double text_y = height / 2.0 - text_height / 2.0;
 	cairo_set_source_u32(cairo, box_colors.text);
 	cairo_move_to(cairo, *x + width / 2 - text_width / 2, (int)floor(text_y));
-	pango_printf(cairo, config->font, 1, true, "%s", name);
+	pango_printf(cairo, config->font, output->scale, true, "%s", name);
 
 	struct swaybar_hotspot *hotspot = calloc(1, sizeof(struct swaybar_hotspot));
 	hotspot->x = *x;
@@ -370,7 +415,7 @@ static uint32_t render_workspace_button(cairo_t *cairo,
 	wl_list_insert(&output->hotspots, &hotspot->link);
 
 	*x += width;
-	return height;
+	return height / output->scale;
 }
 
 static uint32_t render_to_cairo(cairo_t *cairo,
@@ -394,7 +439,13 @@ static uint32_t render_to_cairo(cairo_t *cairo,
 	 * height is too tall, the render function should adapt its drawing to
 	 * utilize the available space.
 	 */
-	double x = 0;
+	double x = output->width * output->scale;
+	if (bar->status) {
+		uint32_t h = render_status_line(cairo, config, output,
+				bar->status, output->focused, &x, output->height);
+		max_height = h > max_height ? h : max_height;
+	}
+	x = 0;
 	if (config->workspace_buttons) {
 		struct swaybar_workspace *ws;
 		wl_list_for_each_reverse(ws, &output->workspaces, link) {
@@ -404,14 +455,8 @@ static uint32_t render_to_cairo(cairo_t *cairo,
 		}
 	}
 	if (config->binding_mode_indicator && config->mode) {
-		uint32_t h = render_binding_mode_indicator(
-				cairo, config, config->mode, x, output->height);
-		max_height = h > max_height ? h : max_height;
-	}
-	x = output->width;
-	if (bar->status) {
-		uint32_t h = render_status_line(cairo, config, output, bar->status,
-				output->focused, &x, output->width, output->height);
+		uint32_t h = render_binding_mode_indicator(cairo,
+				output, config, config->mode, x, output->height);
 		max_height = h > max_height ? h : max_height;
 	}
 
@@ -451,7 +496,9 @@ void render_frame(struct swaybar *bar, struct swaybar_output *output) {
 	} else {
 		// Replay recording into shm and send it off
 		output->current_buffer = get_next_buffer(bar->shm,
-				output->buffers, output->width, output->height);
+				output->buffers,
+				output->width * output->scale,
+				output->height * output->scale);
 		cairo_t *shm = output->current_buffer->cairo;
 
 		cairo_save(shm);
@@ -462,9 +509,11 @@ void render_frame(struct swaybar *bar, struct swaybar_output *output) {
 		cairo_set_source_surface(shm, recorder, 0.0, 0.0);
 		cairo_paint(shm);
 
+		wl_surface_set_buffer_scale(output->surface, output->scale);
 		wl_surface_attach(output->surface,
 				output->current_buffer->buffer, 0, 0);
-		wl_surface_damage(output->surface, 0, 0, output->width, output->height);
+		wl_surface_damage(output->surface, 0, 0,
+				output->width, output->height);
 		wl_surface_commit(output->surface);
 		wl_display_roundtrip(bar->display);
 	}

swaybar/status_line.c

@@ -59,7 +59,11 @@ bool status_handle_readable(struct status_line *status) {
 					wlr_log(L_DEBUG, "Enabled click events.");
 					status->i3bar_state.click_events = true;
 					const char *events_array = "[\n";
-					write(status->write_fd, events_array, strlen(events_array));
+					ssize_t len = strlen(events_array);
+					if (write(status->write_fd, events_array, len) != len) {
+						status_error(status,
+								"[failed to write to status command]");
+					}
 				}
 				json_object_put(proto);
 			}

swaybg/main.c

@@ -43,10 +43,12 @@ struct swaybg_state {
 
 	struct wl_output *output;
 	struct wl_surface *surface;
+	struct wl_region *input_region;
 	struct zwlr_layer_surface_v1 *layer_surface;
 
 	bool run_display;
 	uint32_t width, height;
+	int32_t scale;
 	struct pool_buffer buffers[2];
 	struct pool_buffer *current_buffer;
 };
@@ -74,52 +76,53 @@ static void render_image(struct swaybg_state *state) {
 	cairo_surface_t *image = state->context.image;
 	double width = cairo_image_surface_get_width(image);
 	double height = cairo_image_surface_get_height(image);
-	int wwidth = state->width;
-	int wheight = state->height;
+	int buffer_width = state->width * state->scale;
+	int buffer_height = state->height * state->scale;
 
 	switch (state->args->mode) {
 	case BACKGROUND_MODE_STRETCH:
-		cairo_scale(cairo, (double)wwidth / width, (double)wheight / height);
+		cairo_scale(cairo, (double)buffer_width / width,
+			(double)buffer_height / height);
 		cairo_set_source_surface(cairo, image, 0, 0);
 		break;
 	case BACKGROUND_MODE_FILL: {
-		double window_ratio = (double)wwidth / wheight;
+		double window_ratio = (double)buffer_width / buffer_height;
 		double bg_ratio = width / height;
 
 		if (window_ratio > bg_ratio) {
-			double scale = (double)wwidth / width;
+			double scale = (double)buffer_width / width;
 			cairo_scale(cairo, scale, scale);
 			cairo_set_source_surface(cairo, image,
-					0, (double)wheight / 2 / scale - height / 2);
+					0, (double)buffer_height / 2 / scale - height / 2);
 		} else {
-			double scale = (double)wheight / height;
+			double scale = (double)buffer_height / height;
 			cairo_scale(cairo, scale, scale);
 			cairo_set_source_surface(cairo, image,
-					(double)wwidth / 2 / scale - width / 2, 0);
+					(double)buffer_width / 2 / scale - width / 2, 0);
 		}
 		break;
 	}
 	case BACKGROUND_MODE_FIT: {
-		double window_ratio = (double)wwidth / wheight;
+		double window_ratio = (double)buffer_width / buffer_height;
 		double bg_ratio = width / height;
 
 		if (window_ratio > bg_ratio) {
-			double scale = (double)wheight / height;
+			double scale = (double)buffer_height / height;
 			cairo_scale(cairo, scale, scale);
 			cairo_set_source_surface(cairo, image,
-					(double)wwidth / 2 / scale - width / 2, 0);
+					(double)buffer_width / 2 / scale - width / 2, 0);
 		} else {
-			double scale = (double)wwidth / width;
+			double scale = (double)buffer_width / width;
 			cairo_scale(cairo, scale, scale);
 			cairo_set_source_surface(cairo, image,
-					0, (double)wheight / 2 / scale - height / 2);
+					0, (double)buffer_height / 2 / scale - height / 2);
 		}
 		break;
 	}
 	case BACKGROUND_MODE_CENTER:
 		cairo_set_source_surface(cairo, image,
-				(double)wwidth / 2 - width / 2,
-				(double)wheight / 2 - height / 2);
+				(double)buffer_width / 2 - width / 2,
+				(double)buffer_height / 2 - height / 2);
 		break;
 	case BACKGROUND_MODE_TILE: {
 		cairo_pattern_t *pattern = cairo_pattern_create_for_surface(image);
@@ -135,8 +138,8 @@ static void render_image(struct swaybg_state *state) {
 }
 
 static void render_frame(struct swaybg_state *state) {
-	state->current_buffer = get_next_buffer(state->shm,
-			state->buffers, state->width, state->height);
+	state->current_buffer = get_next_buffer(state->shm, state->buffers,
+		state->width * state->scale, state->height * state->scale);
 	cairo_t *cairo = state->current_buffer->cairo;
 
 	switch (state->args->mode) {
@@ -149,6 +152,7 @@ static void render_frame(struct swaybg_state *state) {
 		break;
 	}
 
+	wl_surface_set_buffer_scale(state->surface, state->scale);
 	wl_surface_attach(state->surface, state->current_buffer->buffer, 0, 0);
 	wl_surface_damage(state->surface, 0, 0, state->width, state->height);
 	wl_surface_commit(state->surface);
@@ -204,6 +208,7 @@ static void layer_surface_closed(void *data,
 	struct swaybg_state *state = data;
 	zwlr_layer_surface_v1_destroy(state->layer_surface);
 	wl_surface_destroy(state->surface);
+	wl_region_destroy(state->input_region);
 	state->run_display = false;
 }
 
@@ -212,12 +217,42 @@ struct zwlr_layer_surface_v1_listener layer_surface_listener = {
 	.closed = layer_surface_closed,
 };
 
+static void output_geometry(void *data, struct wl_output *output, int32_t x,
+		int32_t y, int32_t width_mm, int32_t height_mm, int32_t subpixel,
+		const char *make, const char *model, int32_t transform) {
+	// Who cares
+}
+
+static void output_mode(void *data, struct wl_output *output, uint32_t flags,
+		int32_t width, int32_t height, int32_t refresh) {
+	// Who cares
+}
+
+static void output_done(void *data, struct wl_output *output) {
+	// Who cares
+}
+
+static void output_scale(void *data, struct wl_output *output, int32_t factor) {
+	struct swaybg_state *state = data;
+	state->scale = factor;
+	if (state->run_display) {
+		render_frame(state);
+	}
+}
+
+struct wl_output_listener output_listener = {
+	.geometry = output_geometry,
+	.mode = output_mode,
+	.done = output_done,
+	.scale = output_scale,
+};
+
 static void handle_global(void *data, struct wl_registry *registry,
 		uint32_t name, const char *interface, uint32_t version) {
 	struct swaybg_state *state = data;
 	if (strcmp(interface, wl_compositor_interface.name) == 0) {
 		state->compositor = wl_registry_bind(registry, name,
-				&wl_compositor_interface, 1);
+				&wl_compositor_interface, 3);
 	} else if (strcmp(interface, wl_shm_interface.name) == 0) {
 		state->shm = wl_registry_bind(registry, name,
 				&wl_shm_interface, 1);
@@ -225,7 +260,8 @@ static void handle_global(void *data, struct wl_registry *registry,
 		static int output_idx = 0;
 		if (output_idx == state->args->output_idx) {
 			state->output = wl_registry_bind(registry, name,
-					&wl_output_interface, 1);
+					&wl_output_interface, 3);
+			wl_output_add_listener(state->output, &output_listener, state);
 		}
 		output_idx++;
 	} else if (strcmp(interface, zwlr_layer_shell_v1_interface.name) == 0) {
@@ -287,8 +323,14 @@ int main(int argc, const char **argv) {
 	wl_display_roundtrip(state.display);
 	assert(state.compositor && state.layer_shell && state.output && state.shm);
 
+	// Second roundtrip to get output properties
+	wl_display_roundtrip(state.display);
+
 	assert(state.surface = wl_compositor_create_surface(state.compositor));
 
+	assert(state.input_region = wl_compositor_create_region(state.compositor));
+	wl_surface_set_input_region(state.surface, state.input_region);
+
 	state.layer_surface = zwlr_layer_shell_v1_get_layer_surface(
 			state.layer_shell, state.surface, state.output,
 			ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND, "wallpaper");