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