@theia/core
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Theia is a cloud & desktop IDE framework implemented in TypeScript.
125 lines • 4.64 kB
JavaScript
;
// *****************************************************************************
// Copyright (C) 2017 TypeFox 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-only WITH Classpath-exception-2.0
// *****************************************************************************
Object.defineProperty(exports, "__esModule", { value: true });
exports.TreeExpansionServiceImpl = exports.ExpandableTreeNode = exports.TreeExpansionService = void 0;
const tslib_1 = require("tslib");
const inversify_1 = require("inversify");
const common_1 = require("../../common");
const tree_1 = require("./tree");
exports.TreeExpansionService = Symbol('TreeExpansionService');
var ExpandableTreeNode;
(function (ExpandableTreeNode) {
function is(node) {
return !!node && tree_1.CompositeTreeNode.is(node) && 'expanded' in node;
}
ExpandableTreeNode.is = is;
function isExpanded(node) {
return ExpandableTreeNode.is(node) && node.expanded;
}
ExpandableTreeNode.isExpanded = isExpanded;
function isCollapsed(node) {
return ExpandableTreeNode.is(node) && !node.expanded;
}
ExpandableTreeNode.isCollapsed = isCollapsed;
})(ExpandableTreeNode || (exports.ExpandableTreeNode = ExpandableTreeNode = {}));
let TreeExpansionServiceImpl = class TreeExpansionServiceImpl {
constructor() {
this.onExpansionChangedEmitter = new common_1.Emitter();
}
init() {
this.tree.onNodeRefreshed(node => {
for (const child of node.children) {
if (ExpandableTreeNode.isExpanded(child)) {
node.waitUntil(this.tree.refresh(child));
}
}
});
}
dispose() {
this.onExpansionChangedEmitter.dispose();
}
get onExpansionChanged() {
return this.onExpansionChangedEmitter.event;
}
fireExpansionChanged(node) {
this.onExpansionChangedEmitter.fire(node);
}
async expandNode(raw) {
const node = this.tree.validateNode(raw);
if (ExpandableTreeNode.isCollapsed(node)) {
return this.doExpandNode(node);
}
return undefined;
}
async doExpandNode(node) {
const refreshed = await this.tree.refresh(node);
if (ExpandableTreeNode.is(refreshed)) {
refreshed.expanded = true;
this.fireExpansionChanged(refreshed);
return refreshed;
}
return undefined;
}
async collapseNode(raw) {
const node = this.tree.validateNode(raw);
return this.doCollapseNode(node);
}
async collapseAll(raw) {
const node = this.tree.validateNode(raw);
return this.doCollapseAll(node);
}
doCollapseAll(node) {
let result = false;
if (tree_1.CompositeTreeNode.is(node)) {
for (const child of node.children) {
result = this.doCollapseAll(child) || result;
}
}
return this.doCollapseNode(node) || result;
}
doCollapseNode(node) {
if (!ExpandableTreeNode.isExpanded(node)) {
return false;
}
node.expanded = false;
this.fireExpansionChanged(node);
return true;
}
async toggleNodeExpansion(node) {
if (node.expanded) {
await this.collapseNode(node);
}
else {
await this.expandNode(node);
}
}
};
exports.TreeExpansionServiceImpl = TreeExpansionServiceImpl;
tslib_1.__decorate([
(0, inversify_1.inject)(tree_1.Tree),
tslib_1.__metadata("design:type", Object)
], TreeExpansionServiceImpl.prototype, "tree", void 0);
tslib_1.__decorate([
(0, inversify_1.postConstruct)(),
tslib_1.__metadata("design:type", Function),
tslib_1.__metadata("design:paramtypes", []),
tslib_1.__metadata("design:returntype", void 0)
], TreeExpansionServiceImpl.prototype, "init", null);
exports.TreeExpansionServiceImpl = TreeExpansionServiceImpl = tslib_1.__decorate([
(0, inversify_1.injectable)()
], TreeExpansionServiceImpl);
//# sourceMappingURL=tree-expansion.js.map