devextreme
Version:
HTML5 JavaScript Component Suite for Responsive Web Development
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JavaScript
/**
* DevExtreme (cjs/events/core/keyboard_processor.js)
* Version: 22.1.9
* Build date: Tue Apr 18 2023
*
* Copyright (c) 2012 - 2023 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
"use strict";
exports.default = void 0;
var _renderer = _interopRequireDefault(require("../../core/renderer"));
var _events_engine = _interopRequireDefault(require("../../events/core/events_engine"));
var _class = _interopRequireDefault(require("../../core/class"));
var _index = require("../../events/utils/index");
function _interopRequireDefault(obj) {
return obj && obj.__esModule ? obj : {
default: obj
}
}
var COMPOSITION_START_EVENT = "compositionstart";
var COMPOSITION_END_EVENT = "compositionend";
var KEYDOWN_EVENT = "keydown";
var NAMESPACE = "KeyboardProcessor";
var createKeyDownOptions = function(e) {
return {
keyName: (0, _index.normalizeKeyName)(e),
key: e.key,
code: e.code,
ctrl: e.ctrlKey,
location: e.location,
metaKey: e.metaKey,
shift: e.shiftKey,
alt: e.altKey,
which: e.which,
originalEvent: e
}
};
var KeyboardProcessor = _class.default.inherit({
_keydown: (0, _index.addNamespace)(KEYDOWN_EVENT, NAMESPACE),
_compositionStart: (0, _index.addNamespace)(COMPOSITION_START_EVENT, NAMESPACE),
_compositionEnd: (0, _index.addNamespace)(COMPOSITION_END_EVENT, NAMESPACE),
ctor: function(options) {
var _this = this;
options = options || {};
if (options.element) {
this._element = (0, _renderer.default)(options.element)
}
if (options.focusTarget) {
this._focusTarget = options.focusTarget
}
this._handler = options.handler;
if (this._element) {
this._processFunction = function(e) {
var focusTargets = (0, _renderer.default)(_this._focusTarget).toArray();
var isNotFocusTarget = _this._focusTarget && _this._focusTarget !== e.target && !focusTargets.includes(e.target);
var shouldSkipProcessing = _this._isComposingJustFinished && 229 === e.which || _this._isComposing || isNotFocusTarget;
_this._isComposingJustFinished = false;
if (!shouldSkipProcessing) {
_this.process(e)
}
};
this._toggleProcessingWithContext = this.toggleProcessing.bind(this);
_events_engine.default.on(this._element, this._keydown, this._processFunction);
_events_engine.default.on(this._element, this._compositionStart, this._toggleProcessingWithContext);
_events_engine.default.on(this._element, this._compositionEnd, this._toggleProcessingWithContext)
}
},
dispose: function() {
if (this._element) {
_events_engine.default.off(this._element, this._keydown, this._processFunction);
_events_engine.default.off(this._element, this._compositionStart, this._toggleProcessingWithContext);
_events_engine.default.off(this._element, this._compositionEnd, this._toggleProcessingWithContext)
}
this._element = void 0;
this._handler = void 0
},
process: function(e) {
this._handler(createKeyDownOptions(e))
},
toggleProcessing: function(_ref) {
var type = _ref.type;
this._isComposing = type === COMPOSITION_START_EVENT;
this._isComposingJustFinished = !this._isComposing
}
});
KeyboardProcessor.createKeyDownOptions = createKeyDownOptions;
var _default = KeyboardProcessor;
exports.default = _default;
module.exports = exports.default;
module.exports.default = exports.default;