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/*
* vim:ts=4:sw=4:expandtab
*
* i3 - an improved tiling window manager
* © 2009 Michael Stapelberg and contributors (see also: LICENSE)
*
* drag.c: click and drag.
*
*/
#pragma once
#include <config.h>
/** Callback for dragging */
typedef void (*callback_t)(Con *, Rect *, uint32_t, uint32_t,
const xcb_button_press_event_t *, const void *);
/** Macro to create a callback function for dragging */
#define DRAGGING_CB(name) \
static void name(Con *con, Rect *old_rect, uint32_t new_x, uint32_t new_y, \
const xcb_button_press_event_t *event, const void *extra)
/**
* This is the return value of a drag operation like drag_pointer.
*
* DRAGGING will indicate the drag action is still in progress and can be
* continued or resolved.
*
* DRAG_SUCCESS will indicate the intention of the drag action should be
* carried out.
*
* DRAG_REVERT will indicate an attempt should be made to restore the state of
* the involved windows to their condition before the drag.
*
* DRAG_ABORT will indicate that the intention of the drag action cannot be
* carried out (e.g. because the window has been unmapped).
*
*/
typedef enum {
DRAGGING = 0,
DRAG_SUCCESS,
DRAG_REVERT,
DRAG_ABORT
} drag_result_t;
/**
* This function grabs your pointer and keyboard and lets you drag stuff around
* (borders). Every time you move your mouse, an XCB_MOTION_NOTIFY event will
* be received and the given callback will be called with the parameters
* specified (client, the original event), the original rect of the client,
* and the new coordinates (x, y).
*
* If use_threshold is set, dragging only starts after the user moves the
* pointer past a certain threshold. That is, the cursor will not be set and the
* callback will not be called until then.
*
*/
drag_result_t drag_pointer(Con *con, const xcb_button_press_event_t *event,
xcb_window_t confine_to, int cursor,
bool use_threshold, callback_t callback,
const void *extra);
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