swayfx/include/sway/input/seat.h
Ryan Dwyer 32b865e610 Fix crash when deleting last child in a tabbed or stacked container
There was no `current` child because the container was destroyed. This
makes it fall back to looking in the parent's current children list.
2018-06-23 17:47:28 +10:00

149 lines
4.5 KiB
C

#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"
struct sway_seat_device {
struct sway_seat *sway_seat;
struct sway_input_device *input_device;
struct sway_keyboard *keyboard;
struct wl_list link; // sway_seat::devices
};
struct sway_seat_container {
struct sway_seat *seat;
struct sway_container *container;
struct wl_list link; // sway_seat::focus_stack
struct wl_listener destroy;
};
struct sway_drag_icon {
struct sway_seat *seat;
struct wlr_drag_icon *wlr_drag_icon;
struct wl_list link; // sway_root::drag_icons
double x, y; // in layout-local coordinates
struct wl_listener surface_commit;
struct wl_listener map;
struct wl_listener unmap;
struct wl_listener destroy;
};
struct sway_seat {
struct wlr_seat *wlr_seat;
struct sway_cursor *cursor;
struct sway_input_manager *input;
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;
// If exclusive_client is set, no other clients will receive input events
struct wl_client *exclusive_client;
// Last touch point
int32_t touch_id;
double touch_x, touch_y;
struct wl_listener focus_destroy;
struct wl_listener new_container;
struct wl_listener new_drag_icon;
struct wl_list devices; // sway_seat_device::link
struct wl_list link; // input_manager::seats
};
struct sway_seat *seat_create(struct sway_input_manager *input,
const char *seat_name);
void seat_destroy(struct sway_seat *seat);
void seat_add_device(struct sway_seat *seat,
struct sway_input_device *device);
void seat_configure_device(struct sway_seat *seat,
struct sway_input_device *device);
void seat_remove_device(struct sway_seat *seat,
struct sway_input_device *device);
void seat_configure_xcursor(struct sway_seat *seat);
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_surface(struct sway_seat *seat,
struct wlr_surface *surface);
void seat_set_focus_layer(struct sway_seat *seat,
struct wlr_layer_surface *layer);
void seat_set_exclusive_client(struct sway_seat *seat,
struct wl_client *client);
struct sway_container *seat_get_focus(struct sway_seat *seat);
/**
* Return the last container to be focused for the seat (or the most recently
* opened if no container has received focused) that is a child of the given
* container. The focus-inactive container of the root window is the focused
* container for the seat (if the seat does have focus). This function can be
* used to determine what container gets focused next if the focused container
* is destroyed, or focus moves to a container with children and we need to
* descend into the next leaf in focus order.
*/
struct sway_container *seat_get_focus_inactive(struct sway_seat *seat,
struct sway_container *container);
/**
* Descend into the focus stack to find the focus-inactive view. Useful for
* container placement when they change position in the tree.
*/
struct sway_container *seat_get_focus_inactive_view(struct sway_seat *seat,
struct sway_container *container);
/**
* Return the immediate child of container which was most recently focused.
*/
struct sway_container *seat_get_active_child(struct sway_seat *seat,
struct sway_container *container);
/**
* Return the immediate child of container which was most recently focused, with
* fallback to selecting the child in the parent's `current` (rendered) children
* list.
*
* This is useful for when a tabbed container and its children are destroyed but
* still being rendered, and we have to render an appropriate child.
*/
struct sway_container *seat_get_active_current_child(struct sway_seat *seat,
struct sway_container *container);
/**
* Iterate over the focus-inactive children of the container calling the
* function on each.
*/
void seat_focus_inactive_children_for_each(struct sway_seat *seat,
struct sway_container *container,
void (*f)(struct sway_container *container, void *data), void *data);
void seat_apply_config(struct sway_seat *seat, struct seat_config *seat_config);
struct seat_config *seat_get_config(struct sway_seat *seat);
bool seat_is_input_allowed(struct sway_seat *seat, struct wlr_surface *surface);
void drag_icon_update_position(struct sway_drag_icon *icon);
#endif