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handlers.h

/*
 * vim:ts=8:expandtab
 *
 * i3 - an improved dynamic tiling window manager
 *
 * (c) 2009 Michael Stapelberg and contributors
 *
 * See file LICENSE for license information.
 *
 */
#ifndef _HANDLERS_H
#define _HANDLERS_H

/**
 * Due to bindings like Mode_switch + <a>, we need to bind some keys in XCB_GRAB_MODE_SYNC.
 * Therefore, we just replay all key presses.
 *
 */
int handle_key_release(void *ignored, xcb_connection_t *conn, xcb_key_release_event_t *event);

/**
 * There was a key press. We compare this key code with our bindings table and pass
 * the bound action to parse_command().
 *
 */
int handle_key_press(void *ignored, xcb_connection_t *conn, xcb_key_press_event_t *event);

/**
 * When the user moves the mouse pointer onto a window, this callback gets called.
 *
 */
int handle_enter_notify(void *ignored, xcb_connection_t *conn, xcb_enter_notify_event_t *event);

/**
 * Checks if the button press was on a stack window, handles focus setting and returns true
 * if so, or false otherwise.
 *
 */
int handle_button_press(void *ignored, xcb_connection_t *conn, xcb_button_press_event_t *event);

/**
 * A new window appeared on the screen (=was mapped), so let’s manage it.
 *
 */
int handle_map_request(void *prophs, xcb_connection_t *conn, xcb_map_request_event_t *event);

/**
 * Configuration notifies are only handled because we need to set up ignore for the following
 * enter notify events
 *
 */
int handle_configure_event(void *prophs, xcb_connection_t *conn, xcb_configure_notify_event_t *event);

/**
 * Configure requests are received when the application wants to resize windows on their own.
 *
 * We generate a synthethic configure notify event to signalize the client its "new" position.
 *
 */
int handle_configure_request(void *prophs, xcb_connection_t *conn, xcb_configure_request_event_t *event);

/**
 * Our window decorations were unmapped. That means, the window will be killed now,
 * so we better clean up before.
 *
 */
int handle_unmap_notify_event(void *data, xcb_connection_t *conn, xcb_unmap_notify_event_t *event);

/**
 * Called when a window changes its title
 *
 */
int handle_windowname_change(void *data, xcb_connection_t *conn, uint8_t state,
                             xcb_window_t window, xcb_atom_t atom, xcb_get_property_reply_t *prop);

/**
 * We handle legacy window names (titles) which are in COMPOUND_TEXT encoding. However, we
 * just pass them along, so when containing non-ASCII characters, those will be rendering
 * incorrectly. In order to correctly render unicode window titles in i3, an application
 * has to set _NET_WM_NAME, which is in UTF-8 encoding.
 *
 * On every update, a message is put out to the user, so he may improve the situation and
 * update applications which display filenames in their title to correctly use
 * _NET_WM_NAME and therefore support unicode.
 *
 */
int handle_windowname_change_legacy(void *data, xcb_connection_t *conn, uint8_t state,
                                    xcb_window_t window, xcb_atom_t atom, xcb_get_property_reply_t *prop);

/**
 * Store the window classes for jumping to them later.
 *
 */
int handle_windowclass_change(void *data, xcb_connection_t *conn, uint8_t state,
                              xcb_window_t window, xcb_atom_t atom, xcb_get_property_reply_t *prop);


/**
 * Expose event means we should redraw our windows (= title bar)
 *
 */
int handle_expose_event(void *data, xcb_connection_t *conn, xcb_expose_event_t *event);

/**
 * Handle client messages (EWMH)
 *
 */
int handle_client_message(void *data, xcb_connection_t *conn, xcb_client_message_event_t *event);

/**
 * Handles _NET_WM_WINDOW_TYPE changes
 *
 */
int handle_window_type(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
                       xcb_atom_t atom, xcb_get_property_reply_t *property);

/**
 * Handles the size hints set by a window, but currently only the part necessary for displaying
 * clients proportionally inside their frames (mplayer for example)
 *
 * See ICCCM 4.1.2.3 for more details
 *
 */
int handle_normal_hints(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
                        xcb_atom_t name, xcb_get_property_reply_t *reply);

/**
 * Handles the transient for hints set by a window, signalizing that this window is a popup window
 * for some other window.
 *
 * See ICCCM 4.1.2.6 for more details
 *
 */
int handle_transient_for(void *data, xcb_connection_t *conn, uint8_t state, xcb_window_t window,
                         xcb_atom_t name, xcb_get_property_reply_t *reply);

#endif

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