90 lines
2.0 KiB
JavaScript
90 lines
2.0 KiB
JavaScript
import inherits from 'inherits-browser';
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import KeyboardBindings from 'diagram-js/lib/features/keyboard/KeyboardBindings';
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/**
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* BPMN 2.0 specific keyboard bindings.
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*
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* @param {Injector} injector
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*/
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export default function CreateAppendKeyboardBindings(injector) {
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this._injector = injector;
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this._keyboard = this._injector.get('keyboard', false);
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this._editorActions = this._injector.get('editorActions', false);
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if (this._keyboard) {
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this._injector.invoke(KeyboardBindings, this);
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}
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}
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inherits(CreateAppendKeyboardBindings, KeyboardBindings);
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CreateAppendKeyboardBindings.$inject = [
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'injector'
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];
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/**
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* Register available keyboard bindings.
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*
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* @param {Keyboard} keyboard
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* @param {EditorActions} editorActions
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*/
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CreateAppendKeyboardBindings.prototype.registerBindings = function() {
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var keyboard = this._keyboard;
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var editorActions = this._editorActions;
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// inherit default bindings
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KeyboardBindings.prototype.registerBindings.call(this, keyboard, editorActions);
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/**
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* Add keyboard binding if respective editor action
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* is registered.
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*
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* @param {string} action name
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* @param {Function} fn that implements the key binding
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*/
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function addListener(action, fn) {
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if (editorActions && editorActions.isRegistered(action)) {
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keyboard && keyboard.addListener(fn);
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}
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}
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// activate append/create element
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// A
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addListener('appendElement', function(context) {
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var event = context.keyEvent;
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if (keyboard && keyboard.hasModifier(event)) {
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return;
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}
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if (keyboard && keyboard.isKey([ 'a', 'A' ], event)) {
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editorActions && editorActions.trigger('appendElement', event);
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return true;
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}
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});
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// N
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addListener('createElement', function(context) {
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var event = context.keyEvent;
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if (keyboard && keyboard.hasModifier(event)) {
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return;
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}
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if (keyboard && keyboard.isKey([ 'n', 'N' ], event)) {
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editorActions && editorActions.trigger('createElement', event);
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return true;
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}
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});
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}; |