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cursor: Move cursor specific function definitions into cursor.h

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Consolatis 2022-09-16 02:03:32 +02:00 • committed by Johan Malm
parent a3fbb52bb0
commit f491942858
2 changed files with 101 additions and 59 deletions
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include/cursor.h Normal file
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/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef __LABWC_CURSOR_H
#define __LABWC_CURSOR_H
#include <wlr/util/edges.h>
#include "ssd.h"
struct view;
struct seat;
struct server;
struct wlr_surface;
struct wlr_scene_node;
/* Cursors used internally by labwc */
enum lab_cursors {
LAB_CURSOR_CLIENT = 0,
LAB_CURSOR_DEFAULT,
LAB_CURSOR_GRAB,
LAB_CURSOR_RESIZE_NW,
LAB_CURSOR_RESIZE_N,
LAB_CURSOR_RESIZE_NE,
LAB_CURSOR_RESIZE_E,
LAB_CURSOR_RESIZE_SE,
LAB_CURSOR_RESIZE_S,
LAB_CURSOR_RESIZE_SW,
LAB_CURSOR_RESIZE_W,
LAB_CURSOR_COUNT
};
struct cursor_context {
struct view *view;
struct wlr_scene_node *node;
struct wlr_surface *surface;
enum ssd_part_type type;
double sx, sy;
};
/**
* get_cursor_context - find view and scene_node at cursor
*
* Behavior if node points to a surface:
* - 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), 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 type to be set to
* LAB_SSD_CLIENT and return the attached view.
*
* Behavior if node points to internal elements:
* - 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,
* type will be set to LAB_SSD_ROOT and view will be NULL.
*
*/
struct cursor_context get_cursor_context(struct server *server);
/**
* cursor_set - set cursor icon
* @seat - current seat
* @cursor_name - name of cursor, for example "left_ptr" or "grab"
*/
void cursor_set(struct seat *seat, const char *cursor_name);
/**
* cursor_get_resize_edges - calculate resize edge based on cursor position
* @cursor - the current cursor (usually server->seat.cursor)
* @cursor_context - result of get_cursor_context()
*
* Calculates the resize edge combination that is most appropriate based
* on the current view and cursor position in relation to each other.
*
* This is mostly important when either resizing a window using a
* keyboard modifier or when using the Resize action from a keybind.
*/
uint32_t cursor_get_resize_edges(struct wlr_cursor *cursor,
struct cursor_context *ctx);
/**
* cursor_update_focus - update cursor focus, may update the cursor icon
* @server - server
*
* This can be used to give the mouse focus to the surface under the cursor
* or to force an update of the cursor icon by sending an exit and enter
* event to an already focused surface.
*/
void cursor_update_focus(struct server *server);
void cursor_init(struct seat *seat);
void cursor_finish(struct seat *seat);
#endif /* __LABWC_CURSOR_H */