@eclipse-glsp/client
Version:
A sprotty-based client for GLSP
79 lines • 4.26 kB
JavaScript
;
/********************************************************************************
* Copyright (c) 2023-2024 Business Informatics Group (TU Wien) 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
********************************************************************************/
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;
};
var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.PositionNavigator = void 0;
const sprotty_1 = require("@eclipse-glsp/sprotty");
const inversify_1 = require("inversify");
let PositionNavigator = class PositionNavigator {
previous(root, current, previousCurrent, predicate) {
return this.getNearestElement(root, current, e => this.bounds(root, e).x < this.bounds(root, current).x);
}
next(root, current, previousCurrent, predicate) {
return this.getNearestElement(root, current, e => this.bounds(root, e).x > this.bounds(root, current).x);
}
up(root, current, previousCurrent, predicate) {
return this.getNearestElement(root, current, e => this.bounds(root, e).y < this.bounds(root, current).y);
}
down(root, current, previousCurrent, predicate) {
return this.getNearestElement(root, current, e => this.bounds(root, e).y > this.bounds(root, current).y);
}
getNearestElement(root, current, filter) {
const elements = this.boundElements(root).filter(filter);
return this.sortByDistance(root, current, elements)[0];
}
sortByDistance(root, current, elements) {
// https://www.tutorialspoint.com/sort-array-of-points-by-ascending-distance-from-a-given-point-javascript
const distance = (coor1, coor2) => {
const x = coor2.x - coor1.x;
const y = coor2.y - coor1.y;
return Math.sqrt(x * x + y * y);
};
return elements.sort((a, b) => distance(this.bounds(root, a), this.bounds(root, current)) - distance(this.bounds(root, b), this.bounds(root, current)));
}
boundElements(root) {
return (0, sprotty_1.toArray)(root.index.all().filter(e => e instanceof sprotty_1.GNode && (0, sprotty_1.isSelectable)(e) && (0, sprotty_1.isBoundsAware)(e)));
}
bounds(root, element) {
return this.boundsInViewport(element, element.bounds, root);
}
boundsInViewport(element, bounds, viewport) {
if (element instanceof sprotty_1.GChildElement && element.parent !== viewport) {
return this.boundsInViewport(element.parent, element.parent.localToParent(bounds), viewport);
}
else {
return bounds;
}
}
};
exports.PositionNavigator = PositionNavigator;
__decorate([
(0, inversify_1.inject)(sprotty_1.TYPES.IActionDispatcher),
__metadata("design:type", Object)
], PositionNavigator.prototype, "actionDispatcher", void 0);
exports.PositionNavigator = PositionNavigator = __decorate([
(0, inversify_1.injectable)()
], PositionNavigator);
//# sourceMappingURL=position-navigator.js.map