@eclipse-glsp/client
Version:
A sprotty-based client for GLSP
55 lines • 3.05 kB
JavaScript
;
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.SelectionClearingMouseListener = void 0;
/********************************************************************************
* Copyright (c) 2020-2023 EclipseSource and others.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the Eclipse
* Public License v. 2.0 are satisfied: GNU General Public License, version 2
* with the GNU Classpath Exception which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
********************************************************************************/
const inversify_1 = require("inversify");
const sprotty_1 = require("@eclipse-glsp/sprotty");
/**
* A mouse listener that clears the document selection on click
*
* Clicking on SVG elements doesn't update the document selection. In the context of diagramming
* with GLSP, this is unnatural, as the user would expect that clicking in the diagram (e.g. to
* select a diagram element) would clear any other selection state in the DOM. From a technical
* point of view, an active selection in the document after clicking into the diagram may also
* lead to bogus target elements in certain browser events, such as clipboard events, etc.
*
* This listener helps to overcome this problem by actively clearing any existing selection in
* the document, if the user clicks into the diagram.
*/
let SelectionClearingMouseListener = class SelectionClearingMouseListener extends sprotty_1.MouseListener {
mouseDown(_target, event) {
const selection = document.getSelection();
// eslint-disable-next-line no-null/no-null
if (selection === null) {
return [];
}
selection.removeAllRanges();
selection.addRange(document.createRange());
return [];
}
};
exports.SelectionClearingMouseListener = SelectionClearingMouseListener;
exports.SelectionClearingMouseListener = SelectionClearingMouseListener = __decorate([
(0, inversify_1.injectable)()
], SelectionClearingMouseListener);
//# sourceMappingURL=selection-clearing-mouse-listener.js.map