Class: ShortcutRegistry

Blockly.ShortcutRegistry

class   static

Constructor

ShortcutRegistry

new ShortcutRegistry()

Class for the registry of keyboard shortcuts. This is intended to be a singleton. You should not create a new instance, and only access this class from Blockly.ShortcutRegistry.registry.

Enumeration

modifierKeys

static

non-null Blockly.utils.KeyCodes containing number

Enum of valid modifiers.

Value
Shift
Control
Alt
Meta

Property

modifierKeys

static

non-null Blockly.utils.KeyCodes containing number

Enum of valid modifiers.

Value
Shift
Control
Alt
Meta

Methods

addKeyMapping

public

addKeyMapping(keyCode, shortcutName, opt_allowCollision)

Adds a mapping between a keycode and a keyboard shortcut.

Parameter
keyCode	string The key code for the keyboard shortcut. If registering a key code with a modifier (ex: ctrl+c) use Blockly.ShortcutRegistry.registry.createSerializedKey;
shortcutName	string The name of the shortcut to execute when the given keycode is pressed.
opt_allowCollision	Optional boolean True to prevent an error when adding a shortcut to a key that is already mapped to a shortcut.

Throws

Error if the given key code is already mapped to a shortcut.

createSerializedKey

public

createSerializedKey(keyCode, modifiers) returns string

Creates the serialized key code that will be used in the key map.

Parameter
keyCode	number Number code representing the key.
modifiers	Array of string List of modifier key codes to be used with the key. All valid modifiers can be found in the Blockly.ShortcutRegistry.modifierKeys. Value may be null.

Returns

string The serialized key code for the given modifiers and key.

getKeyCodesByShortcutName

public

getKeyCodesByShortcutName(shortcutName) returns Array of string

Gets the serialized key codes that the shortcut with the given name is registered under.

Parameter
shortcutName	string The name of the shortcut.

Returns

non-null Array of string An array with all the key codes the shortcut is registered under.

getKeyMap

public

getKeyMap() returns Object with non-null Array of non-null Blockly.ShortcutRegistry.KeyboardShortcut properties

Gets the current key map.

Returns

non-null Object with non-null Array of non-null Blockly.ShortcutRegistry.KeyboardShortcut properties The object holding key codes to Blockly.ShortcutRegistry.KeyboardShortcut.

getRegistry

public

getRegistry() returns Object with non-null Blockly.ShortcutRegistry.KeyboardShortcut properties

Gets the registry of keyboard shortcuts.

Returns

non-null Object with non-null Blockly.ShortcutRegistry.KeyboardShortcut properties The registry of keyboard shortcuts.

getShortcutNamesByKeyCode

public

getShortcutNamesByKeyCode(keyCode) returns (non-null Array of string or undefined)

Gets the shortcuts registered to the given key code.

Parameter
keyCode	string The serialized key code.

Returns

(non-null Array of string or undefined) The list of shortcuts to call when the given keyCode is used. Undefined if no shortcuts exist.

onKeyDown

public

onKeyDown(workspace, e) returns boolean

Handles key down events.

Parameter
workspace	Blockly.Workspace The main workspace where the event was captured. Value must not be null.
e	Event The key down event. Value must not be null.

Returns

boolean True if the event was handled, false otherwise.

register

public

register(shortcut, opt_allowOverrides)

Registers a keyboard shortcut.

Parameter
shortcut	Blockly.ShortcutRegistry.KeyboardShortcut The shortcut for this key code. Value must not be null.
opt_allowOverrides	Optional boolean True to prevent a warning when overriding an already registered item.

Throws

Error if a shortcut with the same name already exists.

removeAllKeyMappings

public

removeAllKeyMappings(shortcutName)

Removes all the key mappings for a shortcut with the given name. Useful when changing the default key mappings and the key codes registered to the shortcut are unknown.

Parameter
shortcutName	string The name of the shortcut to remove from the key map.

removeKeyMapping

public

removeKeyMapping(keyCode, shortcutName, opt_quiet) returns boolean

Removes a mapping between a keycode and a keyboard shortcut.

Parameter
keyCode	string The key code for the keyboard shortcut. If registering a key code with a modifier (ex: ctrl+c) use Blockly.ShortcutRegistry.registry.createSerializedKey;
shortcutName	string The name of the shortcut to execute when the given keycode is pressed.
opt_quiet	Optional boolean True to not console warn when there is no shortcut to remove.

Returns

boolean True if a key mapping was removed, false otherwise.

setKeyMap

public

setKeyMap(keyMap)

Sets the key map. Setting the key map will override any default key mappings.

Parameter
keyMap	Object with non-null Array of string properties The object with key code to shortcut names. Value must not be null.

unregister

public

unregister(shortcutName) returns boolean

Unregisters a keyboard shortcut registered with the given key code. This will also remove any key mappings that reference this shortcut.

Parameter
shortcutName	string The name of the shortcut to unregister.

Returns

boolean True if an item was unregistered, false otherwise.

Abstract type

KeyboardShortcut

static

{callback: (function(non-null Blockly.Workspace, Event, non-null Blockly.ShortcutRegistry.KeyboardShortcut) returns boolean or undefined), name: string, preconditionFn: (function(non-null Blockly.Workspace) returns boolean or undefined), metadata: (Object or undefined)}

A keyboard shortcut.