/*
 * vim:ts=4:sw=4:expandtab
 *
 * i3 - an improved dynamic tiling window manager
 * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
 *
 * floating.c: Floating windows.
 *
 */
#ifndef I3_FLOATING_H
#define I3_FLOATING_H

#include "tree.h"

/** Callback for dragging */
typedef void(*callback_t)(Con*, Rect*, uint32_t, uint32_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 void *extra)

/** On which border was the dragging initiated? */
typedef enum { BORDER_LEFT   = (1 << 0),
               BORDER_RIGHT  = (1 << 1),
               BORDER_TOP    = (1 << 2),
               BORDER_BOTTOM = (1 << 3)} border_t;

/**
 * Enables floating mode for the given container by detaching it from its
 * parent, creating a new container around it and storing this container in the
 * floating_windows list of the workspace.
 *
 */
void floating_enable(Con *con, bool automatic);

/**
 * Disables floating mode for the given container by re-attaching the container
 * to its old parent.
 *
 */
void floating_disable(Con *con, bool automatic);

/**
 * Calls floating_enable() for tiling containers and floating_disable() for
 * floating containers.
 *
 * If the automatic flag is set to true, this was an automatic update by a
 * change of the window class from the application which can be overwritten by
 * the user.
 *
 */
void toggle_floating_mode(Con *con, bool automatic);

/**
 * Raises the given container in the list of floating containers
 *
 */
void floating_raise_con(Con *con);

/**
 * Checks if con’s coordinates are within its workspace and re-assigns it to
 * the actual workspace if not.
 *
 */
bool floating_maybe_reassign_ws(Con *con);

#if 0
/**
 * Removes the floating client from its workspace and attaches it to the new
 * workspace. This is centralized here because it may happen if you move it
 * via keyboard and if you move it using your mouse.
 *
 */
void floating_assign_to_workspace(Client *client, Workspace *new_workspace);

/**
 * Called whenever the user clicks on a border (not the titlebar!) of a
 * floating window. Determines on which border the user clicked and launches
 * the drag_pointer function with the resize_callback.
 *
 */
int floating_border_click(xcb_connection_t *conn, Client *client,
                          xcb_button_press_event_t *event);

#endif
/**
 * Called when the user clicked on the titlebar of a floating window.
 * Calls the drag_pointer function with the drag_window callback
 *
 */
void floating_drag_window(Con *con, const xcb_button_press_event_t *event);

/**
 * Called when the user clicked on a floating window while holding the
 * floating_modifier and the right mouse button.
 * Calls the drag_pointer function with the resize_window callback
 *
 */
void floating_resize_window(Con *con, const bool proportional, const xcb_button_press_event_t *event);

/**
 * Called when a floating window is created or resized.
 * This function resizes the window if its size is higher or lower than the
 * configured maximum/minimum size, respectively.
 *
 */
void floating_check_size(Con *floating_con);

#if 0
/**
 * Changes focus in the given direction for floating clients.
 *
 * Changing to the left/right means going to the previous/next floating client,
 * changing to top/bottom means cycling through the Z-index.
 *
 */
void floating_focus_direction(xcb_connection_t *conn, Client *currently_focused,
                              direction_t direction);

/**
 * Moves the client 10px to the specified direction.
 *
 */
void floating_move(xcb_connection_t *conn, Client *currently_focused,
                   direction_t direction);

/**
 * Hides all floating clients (or show them if they are currently hidden) on
 * the specified workspace.
 *
 */
void floating_toggle_hide(xcb_connection_t *conn, Workspace *workspace);

#endif
/**
 * This is the return value of a drag operation like drag_pointer. DRAG_CANCEL
 * will indicate the intention of the drag should not be carried out, or that
 * the drag actions should be undone.
 *
 */
typedef enum { DRAG_SUCCESS = 0, DRAG_CANCEL } 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, border on which the click originally was), the original
 * rect of the client, the event and the new coordinates (x, y).
 *
 */
drag_result_t drag_pointer(Con *con, const xcb_button_press_event_t *event,
                  xcb_window_t confine_to, border_t border, int cursor,
                  callback_t callback, const void *extra);

/**
 * Repositions the CT_FLOATING_CON to have the coordinates specified by
 * newrect, but only if the coordinates are not out-of-bounds. Also reassigns
 * the floating con to a different workspace if this move was across different
 * outputs.
 *
 */
void floating_reposition(Con *con, Rect newrect);

/**
 * Fixes the coordinates of the floating window whenever the window gets
 * reassigned to a different output (or when the output’s rect changes).
 *
 */
void floating_fix_coordinates(Con *con, Rect *old_rect, Rect *new_rect);

#endif