wisemapping-frontend/packages/mindplot/src/components/TopicEventDispatcher.ts
2022-02-16 22:24:41 -08:00

94 lines
2.6 KiB
TypeScript

/*
* Copyright [2021] [wisemapping]
*
* Licensed under WiseMapping Public License, Version 1.0 (the "License").
* It is basically the Apache License, Version 2.0 (the "License") plus the
* "powered by wisemapping" text requirement on every single page;
* you may not use this file except in compliance with the License.
* You may obtain a copy of the license at
*
* http://www.wisemapping.org/license
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { $assert } from '@wisemapping/core-js';
import Events from './Events';
import MultilineTextEditor from './MultilineTextEditor';
import { TopicShape } from './model/INodeModel';
import Topic from './Topic';
const TopicEvent = {
EDIT: 'editnode',
CLICK: 'clicknode',
};
class TopicEventDispatcher extends Events {
private _readOnly: boolean;
private _activeEditor: MultilineTextEditor;
private _multilineEditor: MultilineTextEditor;
// eslint-disable-next-line no-use-before-define
static _instance: TopicEventDispatcher;
constructor(readOnly: boolean) {
super();
this._readOnly = readOnly;
this._activeEditor = null;
this._multilineEditor = new MultilineTextEditor();
}
close(update: boolean): void {
if (this.isVisible()) {
this._activeEditor.close(update);
this._activeEditor = null;
}
}
show(topic: Topic, options?): void {
this.process(TopicEvent.EDIT, topic, options);
}
process(eventType: string, topic: Topic, options?): void {
$assert(eventType, 'eventType can not be null');
// Close all previous open editor ....
if (this.isVisible()) {
this.close(false);
}
// Open the new editor ...
const model = topic.getModel();
if (
model.getShapeType() !== TopicShape.IMAGE
&& !this._readOnly
&& eventType === TopicEvent.EDIT
) {
this._multilineEditor.show(topic, options ? options.text : null);
this._activeEditor = this._multilineEditor;
} else {
this.fireEvent(eventType, { model, readOnly: this._readOnly });
}
}
isVisible(): boolean {
return this._activeEditor != null && this._activeEditor.isVisible();
}
static configure(readOnly: boolean): void {
this._instance = new TopicEventDispatcher(readOnly);
}
static getInstance(): TopicEventDispatcher {
return this._instance;
}
}
export { TopicEvent };
export default TopicEventDispatcher;