i3
Data Structures | Macros | Functions | Variables
bindings.c File Reference
#include "all.h"
#include <xkbcommon/xkbcommon.h>
#include <xkbcommon/xkbcommon-x11.h>
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Data Structures

struct  resolve
 

Macros

#define GRAB_KEY(modifier)
 

Functions

static struct Modemode_from_name (const char *name, bool pango_markup)
 
Bindingconfigure_binding (const char *bindtype, const char *modifiers, const char *input_code, const char *release, const char *border, const char *whole_window, const char *command, const char *modename, bool pango_markup)
 Adds a binding from config parameters given as strings and returns a pointer to the binding structure. More...
 
static void grab_keycode_for_binding (xcb_connection_t *conn, Binding *bind, uint32_t keycode)
 
void grab_all_keys (xcb_connection_t *conn)
 Grab the bound keys (tell X to send us keypress events for those keycodes) More...
 
void regrab_all_buttons (xcb_connection_t *conn)
 Release the button grabs on all managed windows and regrab them, reevaluating which buttons need to be grabbed. More...
 
static Bindingget_binding (i3_event_state_mask_t state_filtered, bool is_release, uint16_t input_code, input_type_t input_type)
 
Bindingget_binding_from_xcb_event (xcb_generic_event_t *event)
 Returns a pointer to the Binding that matches the given xcb event or NULL if no such binding exists. More...
 
static void add_keycode_if_matches (struct xkb_keymap *keymap, xkb_keycode_t key, void *data)
 
void translate_keysyms (void)
 Translates keysymbols to keycodes for all bindings which use keysyms. More...
 
void switch_mode (const char *new_mode)
 Switches the key bindings to the given mode, if the mode exists. More...
 
static int reorder_binding_cmp (const void *a, const void *b)
 
static void reorder_bindings_of_mode (struct Mode *mode)
 
void reorder_bindings (void)
 Reorders bindings by event_state_mask descendingly so that get_binding() correctly matches more specific bindings before more generic bindings. More...
 
void check_for_duplicate_bindings (struct context *context)
 Checks for duplicate key bindings (the same keycode or keysym is configured more than once). More...
 
static Bindingbinding_copy (Binding *bind)
 
void binding_free (Binding *bind)
 Frees the binding. More...
 
CommandResultrun_binding (Binding *bind, Con *con)
 Runs the given binding and handles parse errors. More...
 
static int fill_rmlvo_from_root (struct xkb_rule_names *xkb_names)
 
bool load_keymap (void)
 Loads the XKB keymap from the X11 server and feeds it to xkbcommon. More...
 
bool bindings_should_grab_scrollwheel_buttons (void)
 Returns true if the current config has any binding to a scroll wheel button (4 or 5) which is a whole-window binding. More...
 

Variables

static struct xkb_context * xkb_context
 
static struct xkb_keymap * xkb_keymap
 
pid_t command_error_nagbar_pid = -1
 
const char * DEFAULT_BINDING_MODE = "default"
 The name of the default mode. More...
 

Macro Definition Documentation

#define GRAB_KEY (   modifier)
Value:
do { \
xcb_grab_key(conn, 0, root, modifier, keycode, XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC); \
} while (0)
xcb_window_t root
Definition: main.c:56
xcb_connection_t * conn
XCB connection and root screen.
Definition: main.c:43

Referenced by grab_keycode_for_binding().

Function Documentation

static void add_keycode_if_matches ( struct xkb_keymap keymap,
xkb_keycode_t  key,
void *  data 
)
static

Definition at line 322 of file bindings.c.

References resolve::bind, resolve::keysym, Binding::number_keycodes, srealloc(), Binding::translated_to, resolve::xkb_state, and resolve::xkb_state_no_shift.

Referenced by translate_keysyms().

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static Binding* binding_copy ( Binding bind)
static

Definition at line 611 of file bindings.c.

References Binding::command, Binding::number_keycodes, smalloc(), sstrdup(), Binding::symbol, and Binding::translated_to.

Referenced by run_binding().

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void binding_free ( Binding bind)

Frees the binding.

If bind is null, it simply returns.

Definition at line 628 of file bindings.c.

References Binding::command, FREE, Binding::symbol, and Binding::translated_to.

Referenced by load_configuration(), and run_binding().

bool bindings_should_grab_scrollwheel_buttons ( void  )

Returns true if the current config has any binding to a scroll wheel button (4 or 5) which is a whole-window binding.

We need this to figure out whether we should grab all buttons or just 1-3 when managing a window. See #2049.

Definition at line 820 of file bindings.c.

References B_MOUSE, bindings, ELOG, Binding::input_type, Binding::symbol, TAILQ_FOREACH, and Binding::whole_window.

Referenced by manage_window(), and regrab_all_buttons().

void check_for_duplicate_bindings ( struct context context)

Checks for duplicate key bindings (the same keycode or keysym is configured more than once).

If a duplicate binding is found, a message is printed to stderr and the has_errors variable is set to true, which will start i3-nagbar.

Definition at line 564 of file bindings.c.

References bindings, Binding::command, ELOG, Binding::event_state_mask, context::has_errors, Binding::input_type, Binding::keycode, Binding::release, Binding::symbol, and TAILQ_FOREACH.

Referenced by parse_file().

Binding* configure_binding ( const char *  bindtype,
const char *  modifiers,
const char *  input_code,
const char *  release,
const char *  border,
const char *  whole_window,
const char *  command,
const char *  mode,
bool  pango_markup 
)

Adds a binding from config parameters given as strings and returns a pointer to the binding structure.

Returns NULL if the input code could not be parsed.

Definition at line 56 of file bindings.c.

References B_KEYBOARD, B_MOUSE, bindings, Mode::bindings, Binding::border, Binding::command, DLOG, ELOG, event_state_from_str(), Binding::event_state_mask, FREE, I3_XKB_GROUP_MASK_1, I3_XKB_GROUP_MASK_2, I3_XKB_GROUP_MASK_3, I3_XKB_GROUP_MASK_4, Binding::input_type, Binding::keycode, mode_from_name(), Binding::release, scalloc(), sstrdup(), Binding::symbol, TAILQ_INSERT_TAIL, and Binding::whole_window.

Referenced by CFGFUN().

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static int fill_rmlvo_from_root ( struct xkb_rule_names *  xkb_names)
static

Definition at line 689 of file bindings.c.

References conn, DLOG, root, root_screen, and sasprintf().

Referenced by load_keymap().

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static Binding* get_binding ( i3_event_state_mask_t  state_filtered,
bool  is_release,
uint16_t  input_code,
input_type_t  input_type 
)
static
Binding* get_binding_from_xcb_event ( xcb_generic_event_t *  event)

Returns a pointer to the Binding that matches the given xcb event or NULL if no such binding exists.

Definition at line 259 of file bindings.c.

References B_KEYBOARD, B_MOUSE, DLOG, get_binding(), I3_XKB_GROUP_MASK_1, I3_XKB_GROUP_MASK_2, I3_XKB_GROUP_MASK_3, I3_XKB_GROUP_MASK_4, and xcb_numlock_mask.

Referenced by handle_button_press(), handle_key_press(), and route_click().

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void grab_all_keys ( xcb_connection_t *  conn)

Grab the bound keys (tell X to send us keypress events for those keycodes)

Definition at line 132 of file bindings.c.

References B_KEYBOARD, bindings, grab_keycode_for_binding(), Binding::input_type, Binding::keycode, Binding::number_keycodes, TAILQ_FOREACH, and Binding::translated_to.

Referenced by handle_event(), handle_mapping_notify(), load_configuration(), main(), and switch_mode().

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static void grab_keycode_for_binding ( xcb_connection_t *  conn,
Binding bind,
uint32_t  keycode 
)
static
bool load_keymap ( void  )

Loads the XKB keymap from the X11 server and feeds it to xkbcommon.

Definition at line 764 of file bindings.c.

References conn, ELOG, fill_rmlvo_from_root(), LOG, xkb_context, xkb_keymap, and xkb_supported.

Referenced by handle_event(), and main().

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static struct Mode* mode_from_name ( const char *  name,
bool  pango_markup 
)
static

Definition at line 30 of file bindings.c.

References Mode::bindings, modes, Mode::name, Mode::pango_markup, scalloc(), SLIST_FOREACH, SLIST_INSERT_HEAD, sstrdup(), and TAILQ_INIT.

Referenced by configure_binding().

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void regrab_all_buttons ( xcb_connection_t *  conn)

Release the button grabs on all managed windows and regrab them, reevaluating which buttons need to be grabbed.

Definition at line 154 of file bindings.c.

References all_cons, bindings_should_grab_scrollwheel_buttons(), Window::id, TAILQ_FOREACH, Con::window, and xcb_grab_buttons().

Referenced by load_configuration().

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static int reorder_binding_cmp ( const void *  a,
const void *  b 
)
static

Definition at line 493 of file bindings.c.

References Binding::event_state_mask.

Referenced by reorder_bindings_of_mode().

void reorder_bindings ( void  )

Reorders bindings by event_state_mask descendingly so that get_binding() correctly matches more specific bindings before more generic bindings.

Take the following binding configuration as an example:

bindsym n nop lower-case n pressed bindsym Shift+n nop upper-case n pressed

Without reordering, the first binding’s event_state_mask of 0x0 would match the actual event_stat_mask of 0x1 and hence trigger instead of the second keybinding.

Definition at line 547 of file bindings.c.

References bindings, Mode::bindings, current_mode, modes, reorder_bindings_of_mode(), and SLIST_FOREACH.

Referenced by parse_file().

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static void reorder_bindings_of_mode ( struct Mode mode)
static

Definition at line 505 of file bindings.c.

References bindings, Mode::bindings, reorder_binding_cmp(), scalloc(), TAILQ_EMPTY, TAILQ_FOREACH, TAILQ_INIT, TAILQ_INSERT_TAIL, and TAILQ_REMOVE.

Referenced by reorder_bindings().

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CommandResult* run_binding ( Binding bind,
Con con 
)

Runs the given binding and handles parse errors.

If con is passed, it will execute the command binding with that container selected by criteria. Returns a CommandResult for running the binding's command. Caller should render tree if needs_tree_render is true. Free with command_result_free().

Definition at line 646 of file bindings.c.

References binding_copy(), binding_free(), Binding::command, command_error_nagbar_pid, config, errorfilename, Config::font, ipc_send_binding_event(), CommandResult::needs_tree_render, parse_command(), CommandResult::parse_error, Font::pattern, sasprintf(), sstrdup(), start_nagbar(), and tree_render().

Referenced by handle_button_press(), handle_key_press(), and route_click().

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void switch_mode ( const char *  new_mode)

Switches the key bindings to the given mode, if the mode exists.

Definition at line 466 of file bindings.c.

References bindings, Mode::bindings, conn, DLOG, ELOG, FREE, grab_all_keys(), ipc_send_event(), modes, Mode::name, Mode::pango_markup, sasprintf(), SLIST_FOREACH, translate_keysyms(), and ungrab_all_keys().

Referenced by cmd_mode(), and load_configuration().

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void translate_keysyms ( void  )

Variable Documentation

pid_t command_error_nagbar_pid = -1

Definition at line 17 of file bindings.c.

Referenced by cmd_reload(), i3_restart(), and run_binding().

const char* DEFAULT_BINDING_MODE = "default"

The name of the default mode.

Definition at line 23 of file bindings.c.

Referenced by CFGFUN().

struct xkb_context* xkb_context
static

Definition at line 14 of file bindings.c.

Referenced by load_keymap().

struct xkb_keymap* xkb_keymap
static

Definition at line 15 of file bindings.c.

Referenced by load_keymap(), and translate_keysyms().