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cursor: Add struct cursor_context and clean up code

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v2:
 - Add surface to cursor_context, rename c -> ctx
 - Factor out determine_resize_edges()
This commit is contained in:
John Lindgren 2022-09-12 04:54:00 -04:00 • committed by Consolatis
parent 89890b6be9
commit 429c388333
4 changed files with 125 additions and 185 deletions
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26
include/labwc.h
View file

@ -499,37 +499,41 @@ struct view *desktop_focused_view(struct server *server);
void desktop_focus_topmost_mapped_view(struct server *server);
bool isfocusable(struct view *view);
struct cursor_context {
struct view *view;
struct wlr_scene_node *node;
struct wlr_surface *surface;
enum ssd_part_type type;
double sx, sy;
};
/**
* desktop_node_and_view_at - find view and scene_node at (lx, ly)
* get_cursor_context - find view and scene_node at cursor
*
* Behavior if node points to a surface:
* - If surface is a layer-surface, *view_area will be
* - If surface is a layer-surface, type will be
* set to LAB_SSD_LAYER_SURFACE and view will be NULL.
*
* - If surface is a 'lost' unmanaged xsurface (one
* with a never-mapped parent view), *view_area will
* with a never-mapped parent view), type will
* be set to LAB_SSD_UNMANAGED and view will be NULL.
*
* 'Lost' unmanaged xsurfaces are usually caused by
* X11 applications opening popups without setting
* the main window as parent. Example: VLC submenus.
*
* - Any other surface will cause *view_area be set to
* - Any other surface will cause type to be set to
* LAB_SSD_CLIENT and return the attached view.
*
* Behavior if node points to internal elements:
* - *view_area will be set to the appropiate enum value
* - type will be set to the appropriate enum value
* and view will be NULL if the node is not part of the SSD.
*
* If no node is found for the given layout coordinates,
* *view_area will be set to LAB_SSD_ROOT and view will be NULL.
* type will be set to LAB_SSD_ROOT and view will be NULL.
*
*/
struct view *desktop_node_and_view_at(struct server *server, double lx,
double ly, struct wlr_scene_node **scene_node, double *sx, double *sy,
enum ssd_part_type *view_area);
struct view *desktop_view_at_cursor(struct server *server);
struct cursor_context get_cursor_context(struct server *server);
/**
* cursor_set - set cursor icon

6
src/action.c
View file

@ -275,7 +275,7 @@ actions_run(struct view *activator, struct server *server,
}
break;
case ACTION_TYPE_FOCUS:
view = desktop_view_at_cursor(server);
view = get_cursor_context(server).view;
if (view) {
desktop_focus_and_activate_view(&server->seat, view);
}
@ -286,7 +286,7 @@ actions_run(struct view *activator, struct server *server,
}
break;
case ACTION_TYPE_MOVE:
view = desktop_view_at_cursor(server);
view = get_cursor_context(server).view;
if (view) {
interactive_begin(view, LAB_INPUT_STATE_MOVE, 0);
}
@ -297,7 +297,7 @@ actions_run(struct view *activator, struct server *server,
}
break;
case ACTION_TYPE_RESIZE:
view = desktop_view_at_cursor(server);
view = get_cursor_context(server).view;
if (view) {
interactive_begin(view, LAB_INPUT_STATE_RESIZE,
resize_edges);

172
src/cursor.c
View file

@ -34,17 +34,6 @@ static const struct cursor_alias {
{ "w-resize", "left_side" },
};
static bool
is_surface(enum ssd_part_type view_area)
{
return view_area == LAB_SSD_CLIENT
|| view_area == LAB_SSD_LAYER_SURFACE
#if HAVE_XWAYLAND
|| view_area == LAB_SSD_UNMANAGED
#endif
;
}
static struct wlr_surface *
get_toplevel(struct wlr_surface *surface)
{
@ -254,8 +243,7 @@ input_inhibit_blocks_surface(struct seat *seat, struct wl_resource *resource)
}
static bool
update_pressed_surface(struct seat *seat, struct view *view,
struct wlr_scene_node *node, struct wlr_surface *surface)
update_pressed_surface(struct seat *seat, struct cursor_context *ctx)
{
/*
* In most cases, we don't want to leave one surface and enter
@ -264,11 +252,11 @@ update_pressed_surface(struct seat *seat, struct view *view,
* events to work properly. To cover this case, we allow
* leave/enter events between XDG popups and their toplevel.
*/
if (seat->pressed.surface && surface != seat->pressed.surface) {
struct wlr_surface *toplevel = get_toplevel(surface);
if (seat->pressed.surface && ctx->surface != seat->pressed.surface) {
struct wlr_surface *toplevel = get_toplevel(ctx->surface);
if (toplevel && toplevel == seat->pressed.toplevel) {
seat_set_pressed(seat, view, node,
surface, toplevel);
seat_set_pressed(seat, ctx->view, ctx->node,
ctx->surface, toplevel);
return true;
}
}
@ -315,15 +303,13 @@ process_cursor_motion_out_of_surface(struct server *server, uint32_t time)
* Common logic shared by cursor_update_focus() and process_cursor_motion()
*/
static void
cursor_update_common(struct server *server, struct view *view,
struct wlr_scene_node *node, struct wlr_surface *surface,
double sx, double sy, enum ssd_part_type view_area,
cursor_update_common(struct server *server, struct cursor_context *ctx,
uint32_t time_msec, bool cursor_has_moved)
{
struct seat *seat = &server->seat;
struct wlr_seat *wlr_seat = seat->seat;
ssd_update_button_hover(node, &server->ssd_hover_state);
ssd_update_button_hover(ctx->node, &server->ssd_hover_state);
if (server->input_mode != LAB_INPUT_STATE_PASSTHROUGH) {
/*
@ -334,8 +320,8 @@ cursor_update_common(struct server *server, struct view *view,
}
/* TODO: verify drag_icon logic */
if (seat->pressed.surface && surface != seat->pressed.surface
&& !update_pressed_surface(seat, view, node, surface)
if (seat->pressed.surface && ctx->surface != seat->pressed.surface
&& !update_pressed_surface(seat, ctx)
&& !seat->drag_icon) {
if (cursor_has_moved) {
/*
@ -350,13 +336,14 @@ cursor_update_common(struct server *server, struct view *view,
return;
}
if (surface && !input_inhibit_blocks_surface(seat, surface->resource)) {
if (ctx->surface && !input_inhibit_blocks_surface(seat,
ctx->surface->resource)) {
/*
* Cursor is over an input-enabled client surface. The
* cursor image will be set by request_cursor_notify()
* in response to the enter event.
*/
if (surface != wlr_seat->pointer_state.focused_surface
if (ctx->surface != wlr_seat->pointer_state.focused_surface
|| seat->cursor_set_by_server) {
/*
* Enter the surface if necessary. Usually we
@ -370,13 +357,13 @@ cursor_update_common(struct server *server, struct view *view,
* to trigger a cursor image update.
*/
wlr_seat_pointer_notify_clear_focus(wlr_seat);
wlr_seat_pointer_notify_enter(wlr_seat, surface,
sx, sy);
wlr_seat_pointer_notify_enter(wlr_seat, ctx->surface,
ctx->sx, ctx->sy);
zfree(seat->cursor_set_by_server);
}
if (cursor_has_moved) {
wlr_seat_pointer_notify_motion(wlr_seat, time_msec,
sx, sy);
ctx->sx, ctx->sy);
}
} else {
/*
@ -385,10 +372,25 @@ cursor_update_common(struct server *server, struct view *view,
* set the cursor image ourselves.
*/
wlr_seat_pointer_notify_clear_focus(wlr_seat);
set_server_cursor(seat, view_area);
set_server_cursor(seat, ctx->type);
}
}
static uint32_t
determine_resize_edges(struct wlr_cursor *cursor, struct cursor_context *ctx)
{
uint32_t resize_edges = ssd_resize_edges(ctx->type);
if (ctx->view && !resize_edges) {
resize_edges |=
(int)cursor->x < ctx->view->x + ctx->view->w / 2 ?
WLR_EDGE_LEFT : WLR_EDGE_RIGHT;
resize_edges |=
(int)cursor->y < ctx->view->y + ctx->view->h / 2 ?
WLR_EDGE_TOP : WLR_EDGE_BOTTOM;
}
return resize_edges;
}
static void
process_cursor_motion(struct server *server, uint32_t time)
{
@ -402,28 +404,19 @@ process_cursor_motion(struct server *server, uint32_t time)
}
/* Otherwise, find view under the pointer and send the event along */
double sx, sy;
struct wlr_scene_node *node;
enum ssd_part_type view_area = LAB_SSD_NONE;
struct view *view = desktop_node_and_view_at(server,
server->seat.cursor->x, server->seat.cursor->y, &node,
&sx, &sy, &view_area);
struct cursor_context ctx = get_cursor_context(server);
struct seat *seat = &server->seat;
struct wlr_surface *surface = NULL;
if (is_surface(view_area)) {
surface = lab_wlr_surface_from_node(node);
}
if (view_area == LAB_SSD_MENU) {
menu_process_cursor_motion(node);
set_server_cursor(&server->seat, view_area);
if (ctx.type == LAB_SSD_MENU) {
menu_process_cursor_motion(ctx.node);
set_server_cursor(seat, ctx.type);
return;
}
if (view && rc.focus_follow_mouse) {
desktop_focus_and_activate_view(&server->seat, view);
if (ctx.view && rc.focus_follow_mouse) {
desktop_focus_and_activate_view(seat, ctx.view);
if (rc.raise_on_focus) {
desktop_move_to_front(view);
desktop_move_to_front(ctx.view);
}
}
@ -432,23 +425,15 @@ process_cursor_motion(struct server *server, uint32_t time)
if (mousebind->mouse_event == MOUSE_ACTION_DRAG
&& mousebind->pressed_in_context) {
/* Find closest resize edges in case action is Resize */
uint32_t resize_edges = ssd_resize_edges(view_area);
if (view && !resize_edges) {
resize_edges |= server->seat.cursor->x
< view->x + view->w / 2 ? WLR_EDGE_LEFT
: WLR_EDGE_RIGHT;
resize_edges |= server->seat.cursor->y
< view->y + view->h / 2 ? WLR_EDGE_TOP
: WLR_EDGE_BOTTOM;
}
uint32_t resize_edges =
determine_resize_edges(seat->cursor, &ctx);
mousebind->pressed_in_context = false;
actions_run(NULL, server, &mousebind->actions, resize_edges);
}
}
cursor_update_common(server, view, node, surface, sx, sy, view_area,
time, /*cursor_has_moved*/ true);
cursor_update_common(server, &ctx, time, /*cursor_has_moved*/ true);
}
static uint32_t
@ -460,25 +445,13 @@ msec(const struct timespec *t)
void
cursor_update_focus(struct server *server)
{
double sx, sy;
struct wlr_scene_node *node = NULL;
struct wlr_surface *surface = NULL;
enum ssd_part_type view_area = LAB_SSD_NONE;
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
struct seat *seat = &server->seat;
struct view *view = desktop_node_and_view_at(seat->server,
seat->cursor->x, seat->cursor->y, &node, &sx, &sy, &view_area);
if (is_surface(view_area)) {
surface = lab_wlr_surface_from_node(node);
}
/* Focus surface under cursor if it isn't already focused */
cursor_update_common(server, view, node, surface, sx, sy, view_area,
msec(&now), /*cursor_has_moved*/ false);
struct cursor_context ctx = get_cursor_context(server);
cursor_update_common(server, &ctx, msec(&now),
/*cursor_has_moved*/ false);
}
void
@ -802,9 +775,6 @@ cursor_button(struct wl_listener *listener, void *data)
struct wlr_pointer_button_event *event = data;
wlr_idle_notify_activity(seat->wlr_idle, seat->seat);
double sx, sy;
struct wlr_scene_node *node = NULL;
enum ssd_part_type view_area = LAB_SSD_NONE;
uint32_t resize_edges = 0;
/**
@ -818,14 +788,7 @@ cursor_button(struct wl_listener *listener, void *data)
/* bindings to the Frame context swallow mouse events if activated */
bool triggered_frame_binding = false;
struct view *view = desktop_node_and_view_at(server,
server->seat.cursor->x, server->seat.cursor->y, &node,
&sx, &sy, &view_area);
struct wlr_surface *surface = NULL;
if (is_surface(view_area)) {
surface = lab_wlr_surface_from_node(node);
}
struct cursor_context ctx = get_cursor_context(server);
/* get modifiers */
struct wlr_keyboard *keyboard = &seat->keyboard_group->keyboard;
@ -835,7 +798,7 @@ cursor_button(struct wl_listener *listener, void *data)
if (event->state == WLR_BUTTON_RELEASED) {
struct wlr_surface *pressed_surface = seat->pressed.surface;
seat_reset_pressed(seat);
if (pressed_surface && pressed_surface != surface) {
if (pressed_surface && ctx.surface != pressed_surface) {
/*
* Button released but originally pressed over a different surface.
* Just send the release event to the still focused surface.
@ -847,8 +810,7 @@ cursor_button(struct wl_listener *listener, void *data)
if (server->input_mode == LAB_INPUT_STATE_MENU) {
if (close_menu) {
menu_close_root(server);
cursor_update_common(server, view, node,
surface, sx, sy, view_area,
cursor_update_common(server, &ctx,
event->time_msec, false);
close_menu = false;
}
@ -863,16 +825,16 @@ cursor_button(struct wl_listener *listener, void *data)
}
/* Handle _press */
if (surface) {
seat_set_pressed(seat, view, node, surface,
get_toplevel(surface));
if (ctx.surface) {
seat_set_pressed(seat, ctx.view, ctx.node, ctx.surface,
get_toplevel(ctx.surface));
}
if (server->input_mode == LAB_INPUT_STATE_MENU) {
/* We are closing the menu on RELEASE to not leak a stray release */
if (view_area != LAB_SSD_MENU) {
if (ctx.type != LAB_SSD_MENU) {
close_menu = true;
} else if (menu_call_actions(node)) {
} else if (menu_call_actions(ctx.node)) {
/* Action was successfull, may fail if item just opens a submenu */
close_menu = true;
}
@ -880,36 +842,28 @@ cursor_button(struct wl_listener *listener, void *data)
}
/* Handle _press_ on a layer surface */
if (view_area == LAB_SSD_LAYER_SURFACE) {
if (ctx.type == LAB_SSD_LAYER_SURFACE) {
struct wlr_layer_surface_v1 *layer =
wlr_layer_surface_v1_from_wlr_surface(surface);
wlr_layer_surface_v1_from_wlr_surface(ctx.surface);
if (layer->current.keyboard_interactive) {
seat_set_focus_layer(&server->seat, layer);
seat_set_focus_layer(seat, layer);
}
}
if (view) {
/* Determine closest resize edges in case action is Resize */
resize_edges = ssd_resize_edges(view_area);
if (!resize_edges) {
resize_edges |= server->seat.cursor->x < view->x + view->w / 2
? WLR_EDGE_LEFT : WLR_EDGE_RIGHT;
resize_edges |= server->seat.cursor->y < view->y + view->h / 2
? WLR_EDGE_TOP : WLR_EDGE_BOTTOM;
}
}
/* Determine closest resize edges in case action is Resize */
resize_edges = determine_resize_edges(seat->cursor, &ctx);
mousebindings:
if (event->state == WLR_BUTTON_RELEASED) {
triggered_frame_binding |= handle_release_mousebinding(view,
triggered_frame_binding |= handle_release_mousebinding(ctx.view,
server, event->button, modifiers,
view_area, resize_edges);
ctx.type, resize_edges);
} else if (event->state == WLR_BUTTON_PRESSED) {
triggered_frame_binding |= handle_press_mousebinding(view,
triggered_frame_binding |= handle_press_mousebinding(ctx.view,
server, event->button, modifiers,
view_area, resize_edges);
ctx.type, resize_edges);
}
if (surface && !triggered_frame_binding) {
if (ctx.surface && !triggered_frame_binding) {
/* Notify client with pointer focus of button press */
wlr_seat_pointer_notify_button(seat->seat, event->time_msec,
event->button, event->state);

106
src/desktop.c
View file

@ -293,92 +293,74 @@ desktop_focus_topmost_mapped_view(struct server *server)
desktop_move_to_front(view);
}
struct view *
desktop_node_and_view_at(struct server *server, double lx, double ly,
struct wlr_scene_node **scene_node, double *sx, double *sy,
enum ssd_part_type *view_area)
/* TODO: make this less big and scary */
struct cursor_context
get_cursor_context(struct server *server)
{
struct cursor_context ret = {.type = LAB_SSD_NONE};
struct wlr_cursor *cursor = server->seat.cursor;
struct wlr_scene_node *node =
wlr_scene_node_at(&server->scene->tree.node, lx, ly, sx, sy);
wlr_scene_node_at(&server->scene->tree.node,
cursor->x, cursor->y, &ret.sx, &ret.sy);
*scene_node = node;
ret.node = node;
if (!node) {
*view_area = LAB_SSD_ROOT;
return NULL;
ret.type = LAB_SSD_ROOT;
return ret;
}
if (node->type == WLR_SCENE_NODE_BUFFER) {
struct wlr_surface *surface = lab_wlr_surface_from_node(node);
if (surface && wlr_surface_is_layer_surface(surface)) {
*view_area = LAB_SSD_LAYER_SURFACE;
return NULL;
ret.type = LAB_SSD_LAYER_SURFACE;
ret.surface = surface;
return ret;
}
#if HAVE_XWAYLAND
if (node->parent == server->unmanaged_tree) {
*view_area = LAB_SSD_UNMANAGED;
return NULL;
ret.type = LAB_SSD_UNMANAGED;
ret.surface = surface;
return ret;
}
#endif
}
while (node) {
struct node_descriptor *desc = node->data;
/* TODO: convert to switch() */
if (desc) {
if (desc->type == LAB_NODE_DESC_VIEW) {
goto has_view_data;
}
if (desc->type == LAB_NODE_DESC_XDG_POPUP) {
goto has_view_data;
}
if (desc->type == LAB_NODE_DESC_SSD_BUTTON) {
switch (desc->type) {
case LAB_NODE_DESC_VIEW:
case LAB_NODE_DESC_XDG_POPUP:
ret.view = desc->data;
ret.type = ssd_get_part_type(ret.view, ret.node);
if (ret.type == LAB_SSD_CLIENT) {
ret.surface = lab_wlr_surface_from_node(ret.node);
}
return ret;
case LAB_NODE_DESC_SSD_BUTTON: {
/* Always return the top scene node for SSD buttons */
struct ssd_button *button = node_ssd_button_from_node(node);
*scene_node = node;
*view_area = button->type;
return button->view;
ret.node = node;
ret.type = button->type;
ret.view = button->view;
return ret;
}
if (desc->type == LAB_NODE_DESC_LAYER_SURFACE) {
/* FIXME: we shouldn't have to set *view_area */
*view_area = LAB_SSD_CLIENT;
return NULL;
}
if (desc->type == LAB_NODE_DESC_LAYER_POPUP) {
/* FIXME: we shouldn't have to set *view_area */
*view_area = LAB_SSD_CLIENT;
return NULL;
}
if (desc->type == LAB_NODE_DESC_MENUITEM) {
case LAB_NODE_DESC_LAYER_SURFACE:
case LAB_NODE_DESC_LAYER_POPUP:
ret.type = LAB_SSD_CLIENT;
ret.surface = lab_wlr_surface_from_node(ret.node);
return ret;
case LAB_NODE_DESC_MENUITEM:
/* Always return the top scene node for menu items */
*scene_node = node;
*view_area = LAB_SSD_MENU;
return NULL;
ret.node = node;
ret.type = LAB_SSD_MENU;
return ret;
case LAB_NODE_DESC_NODE:
case LAB_NODE_DESC_TREE:
break;
}
}
/* node->parent is always a *wlr_scene_tree */
node = node->parent ? &node->parent->node : NULL;
}
if (!node) {
wlr_log(WLR_ERROR, "Unknown node detected");
}
*view_area = LAB_SSD_NONE;
return NULL;
struct view *view;
struct node_descriptor *desc;
has_view_data:
desc = node->data;
view = desc->data;
*view_area = ssd_get_part_type(view, *scene_node);
return view;
}
struct view *
desktop_view_at_cursor(struct server *server)
{
double sx, sy;
struct wlr_scene_node *node;
enum ssd_part_type view_area = LAB_SSD_NONE;
return desktop_node_and_view_at(server,
server->seat.cursor->x, server->seat.cursor->y,
&node, &sx, &sy, &view_area);
wlr_log(WLR_ERROR, "Unknown node detected");
return ret;
}