swayfx/sway/desktop/layer_shell.c

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#include <stdbool.h>
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#include <stdlib.h>
#include <string.h>
#include <wayland-server-core.h>
#include <wlr/types/wlr_box.h>
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#include <wlr/types/wlr_layer_shell_v1.h>
#include <wlr/types/wlr_output_damage.h>
#include <wlr/types/wlr_output.h>
#include "log.h"
#include "sway/desktop/transaction.h"
#include "sway/input/cursor.h"
#include "sway/input/input-manager.h"
#include "sway/input/seat.h"
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#include "sway/layers.h"
#include "sway/output.h"
#include "sway/server.h"
#include "sway/tree/arrange.h"
Implement type safe arguments and demote sway_container This commit changes the meaning of sway_container so that it only refers to layout containers and view containers. Workspaces, outputs and the root are no longer known as containers. Instead, root, outputs, workspaces and containers are all a type of node, and containers come in two types: layout containers and view containers. In addition to the above, this implements type safe variables. This means we use specific types such as sway_output and sway_workspace instead of generic containers or nodes. However, it's worth noting that in a few places places (eg. seat focus and transactions) referring to them in a generic way is unavoidable which is why we still use nodes in some places. If you want a TL;DR, look at node.h, as well as the struct definitions for root, output, workspace and container. Note that sway_output now contains a workspaces list, and workspaces now contain a tiling and floating list, and containers now contain a pointer back to the workspace. There are now functions for seat_get_focused_workspace and seat_get_focused_container. The latter will return NULL if a workspace itself is focused. Most other seat functions like seat_get_focus and seat_set_focus now accept and return nodes. In the config->handler_context struct, current_container has been replaced with three pointers: node, container and workspace. node is the same as what current_container was, while workspace is the workspace that the node resides on and container is the actual container, which may be NULL if a workspace itself is focused. The global root_container variable has been replaced with one simply called root, which is a pointer to the sway_root instance. The way outputs are created, enabled, disabled and destroyed has changed. Previously we'd wrap the sway_output in a container when it is enabled, but as we don't have containers any more it needs a different approach. The output_create and output_destroy functions previously created/destroyed the container, but now they create/destroy the sway_output. There is a new function output_disable to disable an output without destroying it. Containers have a new view property. If this is populated then the container is a view container, otherwise it's a layout container. Like before, this property is immutable for the life of the container. Containers have both a `sway_container *parent` and `sway_workspace *workspace`. As we use specific types now, parent cannot point to a workspace so it'll be NULL for containers which are direct children of the workspace. The workspace property is set for all containers, except those which are hidden in the scratchpad as they have no workspace. In some cases we need to refer to workspaces in a container-like way. For example, workspaces have layout and children, but when using specific types this makes it difficult. Likewise, it's difficult for a container to get its parent's layout when the parent could be another container or a workspace. To make it easier, some helper functions have been created: container_parent_layout and container_get_siblings. container_remove_child has been renamed to container_detach and container_replace_child has been renamed to container_replace. `container_handle_fullscreen_reparent(con, old_parent)` has had the old_parent removed. We now unfullscreen the workspace when detaching the container, so this function is simplified and only needs one argument now. container_notify_subtree_changed has been renamed to container_update_representation. This is more descriptive of its purpose. I also wanted to be able to call it with whatever container was changed rather than the container's parent, which makes bubbling up to the workspace easier. There are now state structs per node thing. ie. sway_output_state, sway_workspace_state and sway_container_state. The focus, move and layout commands have been completely refactored to work with the specific types. I considered making these a separate PR, but I'd be backporting my changes only to replace them again, and it's easier just to test everything at once.
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#include "sway/tree/workspace.h"
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static void apply_exclusive(struct wlr_box *usable_area,
uint32_t anchor, int32_t exclusive,
int32_t margin_top, int32_t margin_right,
int32_t margin_bottom, int32_t margin_left) {
if (exclusive <= 0) {
return;
}
struct {
uint32_t anchors;
int *positive_axis;
int *negative_axis;
int margin;
} edges[] = {
{
.anchors =
ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT |
ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT |
ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP,
.positive_axis = &usable_area->y,
.negative_axis = &usable_area->height,
.margin = margin_top,
},
{
.anchors =
ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT |
ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT |
ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM,
.positive_axis = NULL,
.negative_axis = &usable_area->height,
.margin = margin_bottom,
},
{
.anchors =
ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT |
ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP |
ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM,
.positive_axis = &usable_area->x,
.negative_axis = &usable_area->width,
.margin = margin_left,
},
{
.anchors =
ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT |
ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP |
ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM,
.positive_axis = NULL,
.negative_axis = &usable_area->width,
.margin = margin_right,
},
};
for (size_t i = 0; i < sizeof(edges) / sizeof(edges[0]); ++i) {
if ((anchor & edges[i].anchors) == edges[i].anchors) {
if (edges[i].positive_axis) {
*edges[i].positive_axis += exclusive + edges[i].margin;
}
if (edges[i].negative_axis) {
*edges[i].negative_axis -= exclusive + edges[i].margin;
}
}
}
}
static void arrange_layer(struct sway_output *output, struct wl_list *list,
struct wlr_box *usable_area, bool exclusive) {
struct sway_layer_surface *sway_layer;
struct wlr_box full_area = { 0 };
wlr_output_effective_resolution(output->wlr_output,
&full_area.width, &full_area.height);
wl_list_for_each(sway_layer, list, link) {
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struct wlr_layer_surface_v1 *layer = sway_layer->layer_surface;
struct wlr_layer_surface_v1_state *state = &layer->current;
if (exclusive != (state->exclusive_zone > 0)) {
continue;
}
struct wlr_box bounds;
if (state->exclusive_zone == -1) {
bounds = full_area;
} else {
bounds = *usable_area;
}
struct wlr_box box = {
.width = state->desired_width,
.height = state->desired_height
};
// Horizontal axis
const uint32_t both_horiz = ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT
| ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT;
if ((state->anchor & both_horiz) && box.width == 0) {
box.x = bounds.x;
box.width = bounds.width;
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT)) {
box.x = bounds.x;
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT)) {
box.x = bounds.x + (bounds.width - box.width);
} else {
box.x = bounds.x + ((bounds.width / 2) - (box.width / 2));
}
// Vertical axis
const uint32_t both_vert = ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP
| ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM;
if ((state->anchor & both_vert) && box.height == 0) {
box.y = bounds.y;
box.height = bounds.height;
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP)) {
box.y = bounds.y;
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM)) {
box.y = bounds.y + (bounds.height - box.height);
} else {
box.y = bounds.y + ((bounds.height / 2) - (box.height / 2));
}
// Margin
if ((state->anchor & both_horiz) == both_horiz) {
box.x += state->margin.left;
box.width -= state->margin.left + state->margin.right;
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT)) {
box.x += state->margin.left;
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT)) {
box.x -= state->margin.right;
}
if ((state->anchor & both_vert) == both_vert) {
box.y += state->margin.top;
box.height -= state->margin.top + state->margin.bottom;
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP)) {
box.y += state->margin.top;
} else if ((state->anchor & ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM)) {
box.y -= state->margin.bottom;
}
if (box.width < 0 || box.height < 0) {
// TODO: Bubble up a protocol error?
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wlr_layer_surface_v1_close(layer);
continue;
}
// Apply
sway_layer->geo = box;
apply_exclusive(usable_area, state->anchor, state->exclusive_zone,
state->margin.top, state->margin.right,
state->margin.bottom, state->margin.left);
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wlr_layer_surface_v1_configure(layer, box.width, box.height);
}
}
void arrange_layers(struct sway_output *output) {
struct wlr_box usable_area = { 0 };
wlr_output_effective_resolution(output->wlr_output,
&usable_area.width, &usable_area.height);
// Arrange exclusive surfaces from top->bottom
arrange_layer(output, &output->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY],
&usable_area, true);
arrange_layer(output, &output->layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP],
&usable_area, true);
arrange_layer(output, &output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM],
&usable_area, true);
arrange_layer(output, &output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND],
&usable_area, true);
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if (memcmp(&usable_area, &output->usable_area,
sizeof(struct wlr_box)) != 0) {
sway_log(SWAY_DEBUG, "Usable area changed, rearranging output");
memcpy(&output->usable_area, &usable_area, sizeof(struct wlr_box));
Implement type safe arguments and demote sway_container This commit changes the meaning of sway_container so that it only refers to layout containers and view containers. Workspaces, outputs and the root are no longer known as containers. Instead, root, outputs, workspaces and containers are all a type of node, and containers come in two types: layout containers and view containers. In addition to the above, this implements type safe variables. This means we use specific types such as sway_output and sway_workspace instead of generic containers or nodes. However, it's worth noting that in a few places places (eg. seat focus and transactions) referring to them in a generic way is unavoidable which is why we still use nodes in some places. If you want a TL;DR, look at node.h, as well as the struct definitions for root, output, workspace and container. Note that sway_output now contains a workspaces list, and workspaces now contain a tiling and floating list, and containers now contain a pointer back to the workspace. There are now functions for seat_get_focused_workspace and seat_get_focused_container. The latter will return NULL if a workspace itself is focused. Most other seat functions like seat_get_focus and seat_set_focus now accept and return nodes. In the config->handler_context struct, current_container has been replaced with three pointers: node, container and workspace. node is the same as what current_container was, while workspace is the workspace that the node resides on and container is the actual container, which may be NULL if a workspace itself is focused. The global root_container variable has been replaced with one simply called root, which is a pointer to the sway_root instance. The way outputs are created, enabled, disabled and destroyed has changed. Previously we'd wrap the sway_output in a container when it is enabled, but as we don't have containers any more it needs a different approach. The output_create and output_destroy functions previously created/destroyed the container, but now they create/destroy the sway_output. There is a new function output_disable to disable an output without destroying it. Containers have a new view property. If this is populated then the container is a view container, otherwise it's a layout container. Like before, this property is immutable for the life of the container. Containers have both a `sway_container *parent` and `sway_workspace *workspace`. As we use specific types now, parent cannot point to a workspace so it'll be NULL for containers which are direct children of the workspace. The workspace property is set for all containers, except those which are hidden in the scratchpad as they have no workspace. In some cases we need to refer to workspaces in a container-like way. For example, workspaces have layout and children, but when using specific types this makes it difficult. Likewise, it's difficult for a container to get its parent's layout when the parent could be another container or a workspace. To make it easier, some helper functions have been created: container_parent_layout and container_get_siblings. container_remove_child has been renamed to container_detach and container_replace_child has been renamed to container_replace. `container_handle_fullscreen_reparent(con, old_parent)` has had the old_parent removed. We now unfullscreen the workspace when detaching the container, so this function is simplified and only needs one argument now. container_notify_subtree_changed has been renamed to container_update_representation. This is more descriptive of its purpose. I also wanted to be able to call it with whatever container was changed rather than the container's parent, which makes bubbling up to the workspace easier. There are now state structs per node thing. ie. sway_output_state, sway_workspace_state and sway_container_state. The focus, move and layout commands have been completely refactored to work with the specific types. I considered making these a separate PR, but I'd be backporting my changes only to replace them again, and it's easier just to test everything at once.
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arrange_output(output);
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}
// Arrange non-exlusive surfaces from top->bottom
arrange_layer(output, &output->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY],
&usable_area, false);
arrange_layer(output, &output->layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP],
&usable_area, false);
arrange_layer(output, &output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM],
&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, &server.input->seats, link) {
seat_set_focus_layer(seat, topmost ? topmost->layer_surface : NULL);
}
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}
static struct sway_layer_surface *find_any_layer_by_client(
struct wl_client *client, struct wlr_output *ignore_output) {
for (int i = 0; i < root->outputs->length; ++i) {
struct sway_output *output = root->outputs->items[i];
if (output->wlr_output == ignore_output) {
continue;
}
// For now we'll only check the overlay layer
struct sway_layer_surface *lsurface;
wl_list_for_each(lsurface,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY], link) {
struct wl_resource *resource = lsurface->layer_surface->resource;
if (wl_resource_get_client(resource) == client) {
return lsurface;
}
}
}
return NULL;
}
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static void handle_output_destroy(struct wl_listener *listener, void *data) {
struct sway_layer_surface *sway_layer =
wl_container_of(listener, sway_layer, output_destroy);
// Determine if this layer is being used by an exclusive client. If it is,
// try and find another layer owned by this client to pass focus to.
struct sway_seat *seat = input_manager_get_default_seat();
struct wl_client *client =
wl_resource_get_client(sway_layer->layer_surface->resource);
bool set_focus = seat->exclusive_client == client;
wl_list_remove(&sway_layer->output_destroy.link);
layer_shell: cleanup output link on output destroy Fixes this kind of use-after-free: ==1795==ERROR: AddressSanitizer: heap-use-after-free on address 0x612000191ef0 at pc 0x00000048c388 bp 0x7ffe308f0410 sp 0x7ffe308f0400 WRITE of size 8 at 0x612000191ef0 thread T0 #0 0x48c387 in wl_list_remove ../common/list.c:157 #1 0x42196b in handle_destroy ../sway/desktop/layer_shell.c:275 #2 0x7f55cc2549fa in wlr_signal_emit_safe ../util/signal.c:29 #3 0x7f55cc22cf68 in layer_surface_destroy ../types/wlr_layer_shell.c:182 #4 0x7f55cc22d084 in layer_surface_resource_destroy ../types/wlr_layer_shell.c:196 #5 0x7f55cc4ca025 in destroy_resource src/wayland-server.c:688 #6 0x7f55cc4ca091 in wl_resource_destroy src/wayland-server.c:705 #7 0x7f55cc22c3a2 in resource_handle_destroy ../types/wlr_layer_shell.c:18 #8 0x7f55c8ef103d in ffi_call_unix64 (/lib64/libffi.so.6+0x603d) #9 0x7f55c8ef09fe in ffi_call (/lib64/libffi.so.6+0x59fe) #10 0x7f55cc4cdf2c (/lib64/libwayland-server.so.0+0xbf2c) #11 0x7f55cc4ca3de in wl_client_connection_data src/wayland-server.c:420 #12 0x7f55cc4cbf01 in wl_event_loop_dispatch src/event-loop.c:641 #13 0x7f55cc4ca601 in wl_display_run src/wayland-server.c:1260 #14 0x40bb1e in server_run ../sway/server.c:141 #15 0x40ab2f in main ../sway/main.c:432 #16 0x7f55cb97318a in __libc_start_main ../csu/libc-start.c:308 #17 0x408d29 in _start (/opt/wayland/bin/sway+0x408d29) 0x612000191ef0 is located 48 bytes inside of 312-byte region [0x612000191ec0,0x612000191ff8) freed by thread T0 here: #0 0x7f55ce3bb880 in __interceptor_free (/lib64/libasan.so.5+0xee880) #1 0x42f1db in handle_destroy ../sway/desktop/output.c:1275 #2 0x7f55cc2549fa in wlr_signal_emit_safe ../util/signal.c:29 #3 0x7f55cc23b4c2 in wlr_output_destroy ../types/wlr_output.c:284 #4 0x7f55cc1ddc20 in xdg_toplevel_handle_close ../backend/wayland/output.c:235 #5 0x7f55c8ef103d in ffi_call_unix64 (/lib64/libffi.so.6+0x603d) previously allocated by thread T0 here: #0 0x7f55ce3bbe50 in calloc (/lib64/libasan.so.5+0xeee50) #1 0x42f401 in handle_new_output ../sway/desktop/output.c:1308 #2 0x7f55cc2549fa in wlr_signal_emit_safe ../util/signal.c:29 #3 0x7f55cc1d6cbf in new_output_reemit ../backend/multi/backend.c:113 #4 0x7f55cc2549fa in wlr_signal_emit_safe ../util/signal.c:29 #5 0x7f55cc1deac7 in wlr_wl_output_create ../backend/wayland/output.c:327 #6 0x7f55cc1db353 in backend_start ../backend/wayland/backend.c:55 #7 0x7f55cc1bad55 in wlr_backend_start ../backend/backend.c:35 #8 0x7f55cc1d67a0 in multi_backend_start ../backend/multi/backend.c:24 #9 0x7f55cc1bad55 in wlr_backend_start ../backend/backend.c:35 #10 0x40ba8a in server_run ../sway/server.c:136 #11 0x40ab2f in main ../sway/main.c:432 #12 0x7f55cb97318a in __libc_start_main ../csu/libc-start.c:308
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wl_list_remove(&sway_layer->link);
wl_list_init(&sway_layer->link);
if (set_focus) {
struct sway_layer_surface *layer =
find_any_layer_by_client(client, sway_layer->layer_surface->output);
if (layer) {
seat_set_focus_layer(seat, layer->layer_surface);
}
}
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sway_layer->layer_surface->output = NULL;
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wlr_layer_surface_v1_close(sway_layer->layer_surface);
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}
static void handle_surface_commit(struct wl_listener *listener, void *data) {
struct sway_layer_surface *layer =
wl_container_of(listener, layer, surface_commit);
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struct wlr_layer_surface_v1 *layer_surface = layer->layer_surface;
struct wlr_output *wlr_output = layer_surface->output;
if (wlr_output == NULL) {
return;
}
struct sway_output *output = wlr_output->data;
struct wlr_box old_geo = layer->geo;
arrange_layers(output);
if (memcmp(&old_geo, &layer->geo, sizeof(struct wlr_box)) != 0) {
output_damage_surface(output, old_geo.x, old_geo.y,
layer_surface->surface, true);
output_damage_surface(output, layer->geo.x, layer->geo.y,
layer_surface->surface, true);
} else {
output_damage_surface(output, layer->geo.x, layer->geo.y,
layer_surface->surface, false);
}
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transaction_commit_dirty();
}
static void unmap(struct sway_layer_surface *sway_layer) {
struct wlr_output *wlr_output = sway_layer->layer_surface->output;
if (wlr_output == NULL) {
return;
}
struct sway_output *output = wlr_output->data;
Implement type safe arguments and demote sway_container This commit changes the meaning of sway_container so that it only refers to layout containers and view containers. Workspaces, outputs and the root are no longer known as containers. Instead, root, outputs, workspaces and containers are all a type of node, and containers come in two types: layout containers and view containers. In addition to the above, this implements type safe variables. This means we use specific types such as sway_output and sway_workspace instead of generic containers or nodes. However, it's worth noting that in a few places places (eg. seat focus and transactions) referring to them in a generic way is unavoidable which is why we still use nodes in some places. If you want a TL;DR, look at node.h, as well as the struct definitions for root, output, workspace and container. Note that sway_output now contains a workspaces list, and workspaces now contain a tiling and floating list, and containers now contain a pointer back to the workspace. There are now functions for seat_get_focused_workspace and seat_get_focused_container. The latter will return NULL if a workspace itself is focused. Most other seat functions like seat_get_focus and seat_set_focus now accept and return nodes. In the config->handler_context struct, current_container has been replaced with three pointers: node, container and workspace. node is the same as what current_container was, while workspace is the workspace that the node resides on and container is the actual container, which may be NULL if a workspace itself is focused. The global root_container variable has been replaced with one simply called root, which is a pointer to the sway_root instance. The way outputs are created, enabled, disabled and destroyed has changed. Previously we'd wrap the sway_output in a container when it is enabled, but as we don't have containers any more it needs a different approach. The output_create and output_destroy functions previously created/destroyed the container, but now they create/destroy the sway_output. There is a new function output_disable to disable an output without destroying it. Containers have a new view property. If this is populated then the container is a view container, otherwise it's a layout container. Like before, this property is immutable for the life of the container. Containers have both a `sway_container *parent` and `sway_workspace *workspace`. As we use specific types now, parent cannot point to a workspace so it'll be NULL for containers which are direct children of the workspace. The workspace property is set for all containers, except those which are hidden in the scratchpad as they have no workspace. In some cases we need to refer to workspaces in a container-like way. For example, workspaces have layout and children, but when using specific types this makes it difficult. Likewise, it's difficult for a container to get its parent's layout when the parent could be another container or a workspace. To make it easier, some helper functions have been created: container_parent_layout and container_get_siblings. container_remove_child has been renamed to container_detach and container_replace_child has been renamed to container_replace. `container_handle_fullscreen_reparent(con, old_parent)` has had the old_parent removed. We now unfullscreen the workspace when detaching the container, so this function is simplified and only needs one argument now. container_notify_subtree_changed has been renamed to container_update_representation. This is more descriptive of its purpose. I also wanted to be able to call it with whatever container was changed rather than the container's parent, which makes bubbling up to the workspace easier. There are now state structs per node thing. ie. sway_output_state, sway_workspace_state and sway_container_state. The focus, move and layout commands have been completely refactored to work with the specific types. I considered making these a separate PR, but I'd be backporting my changes only to replace them again, and it's easier just to test everything at once.
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if (output == NULL) {
return;
}
output_damage_surface(output, sway_layer->geo.x, sway_layer->geo.y,
sway_layer->layer_surface->surface, true);
struct sway_seat *seat = input_manager_current_seat();
if (seat->focused_layer == sway_layer->layer_surface) {
seat_set_focus_layer(seat, NULL);
}
cursor_rebase_all();
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}
static void handle_destroy(struct wl_listener *listener, void *data) {
struct sway_layer_surface *sway_layer =
wl_container_of(listener, sway_layer, destroy);
sway_log(SWAY_DEBUG, "Layer surface destroyed (%s)",
sway_layer->layer_surface->namespace);
if (sway_layer->layer_surface->mapped) {
unmap(sway_layer);
}
wl_list_remove(&sway_layer->link);
wl_list_remove(&sway_layer->destroy.link);
wl_list_remove(&sway_layer->map.link);
wl_list_remove(&sway_layer->unmap.link);
wl_list_remove(&sway_layer->surface_commit.link);
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if (sway_layer->layer_surface->output != NULL) {
struct sway_output *output = sway_layer->layer_surface->output->data;
Implement type safe arguments and demote sway_container This commit changes the meaning of sway_container so that it only refers to layout containers and view containers. Workspaces, outputs and the root are no longer known as containers. Instead, root, outputs, workspaces and containers are all a type of node, and containers come in two types: layout containers and view containers. In addition to the above, this implements type safe variables. This means we use specific types such as sway_output and sway_workspace instead of generic containers or nodes. However, it's worth noting that in a few places places (eg. seat focus and transactions) referring to them in a generic way is unavoidable which is why we still use nodes in some places. If you want a TL;DR, look at node.h, as well as the struct definitions for root, output, workspace and container. Note that sway_output now contains a workspaces list, and workspaces now contain a tiling and floating list, and containers now contain a pointer back to the workspace. There are now functions for seat_get_focused_workspace and seat_get_focused_container. The latter will return NULL if a workspace itself is focused. Most other seat functions like seat_get_focus and seat_set_focus now accept and return nodes. In the config->handler_context struct, current_container has been replaced with three pointers: node, container and workspace. node is the same as what current_container was, while workspace is the workspace that the node resides on and container is the actual container, which may be NULL if a workspace itself is focused. The global root_container variable has been replaced with one simply called root, which is a pointer to the sway_root instance. The way outputs are created, enabled, disabled and destroyed has changed. Previously we'd wrap the sway_output in a container when it is enabled, but as we don't have containers any more it needs a different approach. The output_create and output_destroy functions previously created/destroyed the container, but now they create/destroy the sway_output. There is a new function output_disable to disable an output without destroying it. Containers have a new view property. If this is populated then the container is a view container, otherwise it's a layout container. Like before, this property is immutable for the life of the container. Containers have both a `sway_container *parent` and `sway_workspace *workspace`. As we use specific types now, parent cannot point to a workspace so it'll be NULL for containers which are direct children of the workspace. The workspace property is set for all containers, except those which are hidden in the scratchpad as they have no workspace. In some cases we need to refer to workspaces in a container-like way. For example, workspaces have layout and children, but when using specific types this makes it difficult. Likewise, it's difficult for a container to get its parent's layout when the parent could be another container or a workspace. To make it easier, some helper functions have been created: container_parent_layout and container_get_siblings. container_remove_child has been renamed to container_detach and container_replace_child has been renamed to container_replace. `container_handle_fullscreen_reparent(con, old_parent)` has had the old_parent removed. We now unfullscreen the workspace when detaching the container, so this function is simplified and only needs one argument now. container_notify_subtree_changed has been renamed to container_update_representation. This is more descriptive of its purpose. I also wanted to be able to call it with whatever container was changed rather than the container's parent, which makes bubbling up to the workspace easier. There are now state structs per node thing. ie. sway_output_state, sway_workspace_state and sway_container_state. The focus, move and layout commands have been completely refactored to work with the specific types. I considered making these a separate PR, but I'd be backporting my changes only to replace them again, and it's easier just to test everything at once.
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if (output != NULL) {
arrange_layers(output);
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transaction_commit_dirty();
}
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wl_list_remove(&sway_layer->output_destroy.link);
sway_layer->layer_surface->output = NULL;
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}
free(sway_layer);
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}
static void handle_map(struct wl_listener *listener, void *data) {
struct sway_layer_surface *sway_layer = wl_container_of(listener,
sway_layer, map);
struct sway_output *output = sway_layer->layer_surface->output->data;
output_damage_surface(output, sway_layer->geo.x, sway_layer->geo.y,
sway_layer->layer_surface->surface, true);
// TODO: send enter to subsurfaces and popups
wlr_surface_send_enter(sway_layer->layer_surface->surface,
sway_layer->layer_surface->output);
cursor_rebase_all();
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}
static void handle_unmap(struct wl_listener *listener, void *data) {
struct sway_layer_surface *sway_layer = wl_container_of(
listener, sway_layer, unmap);
unmap(sway_layer);
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}
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struct sway_layer_surface *layer_from_wlr_layer_surface_v1(
struct wlr_layer_surface_v1 *layer_surface) {
return layer_surface->data;
}
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void handle_layer_shell_surface(struct wl_listener *listener, void *data) {
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struct wlr_layer_surface_v1 *layer_surface = data;
sway_log(SWAY_DEBUG, "new layer surface: namespace %s layer %d anchor %d "
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"size %dx%d margin %d,%d,%d,%d",
layer_surface->namespace, layer_surface->layer, layer_surface->layer,
layer_surface->client_pending.desired_width,
layer_surface->client_pending.desired_height,
layer_surface->client_pending.margin.top,
layer_surface->client_pending.margin.right,
layer_surface->client_pending.margin.bottom,
layer_surface->client_pending.margin.left);
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if (!layer_surface->output) {
// Assign last active output
Implement type safe arguments and demote sway_container This commit changes the meaning of sway_container so that it only refers to layout containers and view containers. Workspaces, outputs and the root are no longer known as containers. Instead, root, outputs, workspaces and containers are all a type of node, and containers come in two types: layout containers and view containers. In addition to the above, this implements type safe variables. This means we use specific types such as sway_output and sway_workspace instead of generic containers or nodes. However, it's worth noting that in a few places places (eg. seat focus and transactions) referring to them in a generic way is unavoidable which is why we still use nodes in some places. If you want a TL;DR, look at node.h, as well as the struct definitions for root, output, workspace and container. Note that sway_output now contains a workspaces list, and workspaces now contain a tiling and floating list, and containers now contain a pointer back to the workspace. There are now functions for seat_get_focused_workspace and seat_get_focused_container. The latter will return NULL if a workspace itself is focused. Most other seat functions like seat_get_focus and seat_set_focus now accept and return nodes. In the config->handler_context struct, current_container has been replaced with three pointers: node, container and workspace. node is the same as what current_container was, while workspace is the workspace that the node resides on and container is the actual container, which may be NULL if a workspace itself is focused. The global root_container variable has been replaced with one simply called root, which is a pointer to the sway_root instance. The way outputs are created, enabled, disabled and destroyed has changed. Previously we'd wrap the sway_output in a container when it is enabled, but as we don't have containers any more it needs a different approach. The output_create and output_destroy functions previously created/destroyed the container, but now they create/destroy the sway_output. There is a new function output_disable to disable an output without destroying it. Containers have a new view property. If this is populated then the container is a view container, otherwise it's a layout container. Like before, this property is immutable for the life of the container. Containers have both a `sway_container *parent` and `sway_workspace *workspace`. As we use specific types now, parent cannot point to a workspace so it'll be NULL for containers which are direct children of the workspace. The workspace property is set for all containers, except those which are hidden in the scratchpad as they have no workspace. In some cases we need to refer to workspaces in a container-like way. For example, workspaces have layout and children, but when using specific types this makes it difficult. Likewise, it's difficult for a container to get its parent's layout when the parent could be another container or a workspace. To make it easier, some helper functions have been created: container_parent_layout and container_get_siblings. container_remove_child has been renamed to container_detach and container_replace_child has been renamed to container_replace. `container_handle_fullscreen_reparent(con, old_parent)` has had the old_parent removed. We now unfullscreen the workspace when detaching the container, so this function is simplified and only needs one argument now. container_notify_subtree_changed has been renamed to container_update_representation. This is more descriptive of its purpose. I also wanted to be able to call it with whatever container was changed rather than the container's parent, which makes bubbling up to the workspace easier. There are now state structs per node thing. ie. sway_output_state, sway_workspace_state and sway_container_state. The focus, move and layout commands have been completely refactored to work with the specific types. I considered making these a separate PR, but I'd be backporting my changes only to replace them again, and it's easier just to test everything at once.
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struct sway_output *output = NULL;
struct sway_seat *seat = input_manager_get_default_seat();
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if (seat) {
Implement type safe arguments and demote sway_container This commit changes the meaning of sway_container so that it only refers to layout containers and view containers. Workspaces, outputs and the root are no longer known as containers. Instead, root, outputs, workspaces and containers are all a type of node, and containers come in two types: layout containers and view containers. In addition to the above, this implements type safe variables. This means we use specific types such as sway_output and sway_workspace instead of generic containers or nodes. However, it's worth noting that in a few places places (eg. seat focus and transactions) referring to them in a generic way is unavoidable which is why we still use nodes in some places. If you want a TL;DR, look at node.h, as well as the struct definitions for root, output, workspace and container. Note that sway_output now contains a workspaces list, and workspaces now contain a tiling and floating list, and containers now contain a pointer back to the workspace. There are now functions for seat_get_focused_workspace and seat_get_focused_container. The latter will return NULL if a workspace itself is focused. Most other seat functions like seat_get_focus and seat_set_focus now accept and return nodes. In the config->handler_context struct, current_container has been replaced with three pointers: node, container and workspace. node is the same as what current_container was, while workspace is the workspace that the node resides on and container is the actual container, which may be NULL if a workspace itself is focused. The global root_container variable has been replaced with one simply called root, which is a pointer to the sway_root instance. The way outputs are created, enabled, disabled and destroyed has changed. Previously we'd wrap the sway_output in a container when it is enabled, but as we don't have containers any more it needs a different approach. The output_create and output_destroy functions previously created/destroyed the container, but now they create/destroy the sway_output. There is a new function output_disable to disable an output without destroying it. Containers have a new view property. If this is populated then the container is a view container, otherwise it's a layout container. Like before, this property is immutable for the life of the container. Containers have both a `sway_container *parent` and `sway_workspace *workspace`. As we use specific types now, parent cannot point to a workspace so it'll be NULL for containers which are direct children of the workspace. The workspace property is set for all containers, except those which are hidden in the scratchpad as they have no workspace. In some cases we need to refer to workspaces in a container-like way. For example, workspaces have layout and children, but when using specific types this makes it difficult. Likewise, it's difficult for a container to get its parent's layout when the parent could be another container or a workspace. To make it easier, some helper functions have been created: container_parent_layout and container_get_siblings. container_remove_child has been renamed to container_detach and container_replace_child has been renamed to container_replace. `container_handle_fullscreen_reparent(con, old_parent)` has had the old_parent removed. We now unfullscreen the workspace when detaching the container, so this function is simplified and only needs one argument now. container_notify_subtree_changed has been renamed to container_update_representation. This is more descriptive of its purpose. I also wanted to be able to call it with whatever container was changed rather than the container's parent, which makes bubbling up to the workspace easier. There are now state structs per node thing. ie. sway_output_state, sway_workspace_state and sway_container_state. The focus, move and layout commands have been completely refactored to work with the specific types. I considered making these a separate PR, but I'd be backporting my changes only to replace them again, and it's easier just to test everything at once.
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struct sway_workspace *ws = seat_get_focused_workspace(seat);
if (ws != NULL) {
output = ws->output;
}
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}
if (!output || output == root->noop_output) {
if (!root->outputs->length) {
sway_log(SWAY_ERROR,
"no output to auto-assign layer surface '%s' to",
layer_surface->namespace);
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wlr_layer_surface_v1_close(layer_surface);
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return;
}
Implement type safe arguments and demote sway_container This commit changes the meaning of sway_container so that it only refers to layout containers and view containers. Workspaces, outputs and the root are no longer known as containers. Instead, root, outputs, workspaces and containers are all a type of node, and containers come in two types: layout containers and view containers. In addition to the above, this implements type safe variables. This means we use specific types such as sway_output and sway_workspace instead of generic containers or nodes. However, it's worth noting that in a few places places (eg. seat focus and transactions) referring to them in a generic way is unavoidable which is why we still use nodes in some places. If you want a TL;DR, look at node.h, as well as the struct definitions for root, output, workspace and container. Note that sway_output now contains a workspaces list, and workspaces now contain a tiling and floating list, and containers now contain a pointer back to the workspace. There are now functions for seat_get_focused_workspace and seat_get_focused_container. The latter will return NULL if a workspace itself is focused. Most other seat functions like seat_get_focus and seat_set_focus now accept and return nodes. In the config->handler_context struct, current_container has been replaced with three pointers: node, container and workspace. node is the same as what current_container was, while workspace is the workspace that the node resides on and container is the actual container, which may be NULL if a workspace itself is focused. The global root_container variable has been replaced with one simply called root, which is a pointer to the sway_root instance. The way outputs are created, enabled, disabled and destroyed has changed. Previously we'd wrap the sway_output in a container when it is enabled, but as we don't have containers any more it needs a different approach. The output_create and output_destroy functions previously created/destroyed the container, but now they create/destroy the sway_output. There is a new function output_disable to disable an output without destroying it. Containers have a new view property. If this is populated then the container is a view container, otherwise it's a layout container. Like before, this property is immutable for the life of the container. Containers have both a `sway_container *parent` and `sway_workspace *workspace`. As we use specific types now, parent cannot point to a workspace so it'll be NULL for containers which are direct children of the workspace. The workspace property is set for all containers, except those which are hidden in the scratchpad as they have no workspace. In some cases we need to refer to workspaces in a container-like way. For example, workspaces have layout and children, but when using specific types this makes it difficult. Likewise, it's difficult for a container to get its parent's layout when the parent could be another container or a workspace. To make it easier, some helper functions have been created: container_parent_layout and container_get_siblings. container_remove_child has been renamed to container_detach and container_replace_child has been renamed to container_replace. `container_handle_fullscreen_reparent(con, old_parent)` has had the old_parent removed. We now unfullscreen the workspace when detaching the container, so this function is simplified and only needs one argument now. container_notify_subtree_changed has been renamed to container_update_representation. This is more descriptive of its purpose. I also wanted to be able to call it with whatever container was changed rather than the container's parent, which makes bubbling up to the workspace easier. There are now state structs per node thing. ie. sway_output_state, sway_workspace_state and sway_container_state. The focus, move and layout commands have been completely refactored to work with the specific types. I considered making these a separate PR, but I'd be backporting my changes only to replace them again, and it's easier just to test everything at once.
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output = root->outputs->items[0];
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}
Implement type safe arguments and demote sway_container This commit changes the meaning of sway_container so that it only refers to layout containers and view containers. Workspaces, outputs and the root are no longer known as containers. Instead, root, outputs, workspaces and containers are all a type of node, and containers come in two types: layout containers and view containers. In addition to the above, this implements type safe variables. This means we use specific types such as sway_output and sway_workspace instead of generic containers or nodes. However, it's worth noting that in a few places places (eg. seat focus and transactions) referring to them in a generic way is unavoidable which is why we still use nodes in some places. If you want a TL;DR, look at node.h, as well as the struct definitions for root, output, workspace and container. Note that sway_output now contains a workspaces list, and workspaces now contain a tiling and floating list, and containers now contain a pointer back to the workspace. There are now functions for seat_get_focused_workspace and seat_get_focused_container. The latter will return NULL if a workspace itself is focused. Most other seat functions like seat_get_focus and seat_set_focus now accept and return nodes. In the config->handler_context struct, current_container has been replaced with three pointers: node, container and workspace. node is the same as what current_container was, while workspace is the workspace that the node resides on and container is the actual container, which may be NULL if a workspace itself is focused. The global root_container variable has been replaced with one simply called root, which is a pointer to the sway_root instance. The way outputs are created, enabled, disabled and destroyed has changed. Previously we'd wrap the sway_output in a container when it is enabled, but as we don't have containers any more it needs a different approach. The output_create and output_destroy functions previously created/destroyed the container, but now they create/destroy the sway_output. There is a new function output_disable to disable an output without destroying it. Containers have a new view property. If this is populated then the container is a view container, otherwise it's a layout container. Like before, this property is immutable for the life of the container. Containers have both a `sway_container *parent` and `sway_workspace *workspace`. As we use specific types now, parent cannot point to a workspace so it'll be NULL for containers which are direct children of the workspace. The workspace property is set for all containers, except those which are hidden in the scratchpad as they have no workspace. In some cases we need to refer to workspaces in a container-like way. For example, workspaces have layout and children, but when using specific types this makes it difficult. Likewise, it's difficult for a container to get its parent's layout when the parent could be another container or a workspace. To make it easier, some helper functions have been created: container_parent_layout and container_get_siblings. container_remove_child has been renamed to container_detach and container_replace_child has been renamed to container_replace. `container_handle_fullscreen_reparent(con, old_parent)` has had the old_parent removed. We now unfullscreen the workspace when detaching the container, so this function is simplified and only needs one argument now. container_notify_subtree_changed has been renamed to container_update_representation. This is more descriptive of its purpose. I also wanted to be able to call it with whatever container was changed rather than the container's parent, which makes bubbling up to the workspace easier. There are now state structs per node thing. ie. sway_output_state, sway_workspace_state and sway_container_state. The focus, move and layout commands have been completely refactored to work with the specific types. I considered making these a separate PR, but I'd be backporting my changes only to replace them again, and it's easier just to test everything at once.
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layer_surface->output = output->wlr_output;
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}
struct sway_layer_surface *sway_layer =
calloc(1, sizeof(struct sway_layer_surface));
if (!sway_layer) {
return;
}
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sway_layer->surface_commit.notify = handle_surface_commit;
wl_signal_add(&layer_surface->surface->events.commit,
&sway_layer->surface_commit);
sway_layer->destroy.notify = handle_destroy;
wl_signal_add(&layer_surface->events.destroy, &sway_layer->destroy);
sway_layer->map.notify = handle_map;
wl_signal_add(&layer_surface->events.map, &sway_layer->map);
sway_layer->unmap.notify = handle_unmap;
wl_signal_add(&layer_surface->events.unmap, &sway_layer->unmap);
// TODO: Listen for subsurfaces
sway_layer->layer_surface = layer_surface;
layer_surface->data = sway_layer;
struct sway_output *output = layer_surface->output->data;
sway_layer->output_destroy.notify = handle_output_destroy;
wl_signal_add(&output->events.destroy, &sway_layer->output_destroy);
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wl_list_insert(&output->layers[layer_surface->layer], &sway_layer->link);
// Temporarily set the layer's current state to client_pending
// So that we can easily arrange it
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struct wlr_layer_surface_v1_state old_state = layer_surface->current;
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layer_surface->current = layer_surface->client_pending;
arrange_layers(output);
layer_surface->current = old_state;
}