@theia/core/lib/browser/encoding-registry.js

"use strict";
// *****************************************************************************
// Copyright (C) 2020 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
// *****************************************************************************
/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.EncodingRegistry = void 0;
const tslib_1 = require("tslib");
// based on https://github.com/microsoft/vscode/blob/04c36be045a94fee58e5f8992d3e3fd980294a84/src/vs/workbench/services/textfile/browser/textFileService.ts#L491
const inversify_1 = require("inversify");
const disposable_1 = require("../common/disposable");
const core_preferences_1 = require("./core-preferences");
const encoding_service_1 = require("../common/encoding-service");
const encodings_1 = require("../common/encodings");
let EncodingRegistry = class EncodingRegistry {
    constructor() {
        this.encodingOverrides = [];
    }
    registerOverride(override) {
        this.encodingOverrides.push(override);
        return disposable_1.Disposable.create(() => {
            const index = this.encodingOverrides.indexOf(override);
            if (index !== -1) {
                this.encodingOverrides.splice(index, 1);
            }
        });
    }
    getEncodingForResource(resource, preferredEncoding) {
        let fileEncoding;
        const override = this.getEncodingOverride(resource);
        if (override) {
            fileEncoding = override; // encoding override always wins
        }
        else if (preferredEncoding) {
            fileEncoding = preferredEncoding; // preferred encoding comes second
        }
        else {
            fileEncoding = this.preferences.get('files.encoding', undefined, resource.toString());
        }
        if (!fileEncoding || !this.encodingService.exists(fileEncoding)) {
            return encodings_1.UTF8; // the default is UTF 8
        }
        return this.encodingService.toIconvEncoding(fileEncoding);
    }
    getEncodingOverride(resource) {
        if (this.encodingOverrides && this.encodingOverrides.length) {
            for (const override of this.encodingOverrides) {
                if (override.parent && resource.isEqualOrParent(override.parent)) {
                    return override.encoding;
                }
                if (override.extension && resource.path.ext === `.${override.extension}`) {
                    return override.encoding;
                }
                if (override.scheme && override.scheme === resource.scheme) {
                    return override.encoding;
                }
            }
        }
        return undefined;
    }
};
(0, tslib_1.__decorate)([
    (0, inversify_1.inject)(core_preferences_1.CorePreferences),
    (0, tslib_1.__metadata)("design:type", Object)
], EncodingRegistry.prototype, "preferences", void 0);
(0, tslib_1.__decorate)([
    (0, inversify_1.inject)(encoding_service_1.EncodingService),
    (0, tslib_1.__metadata)("design:type", encoding_service_1.EncodingService)
], EncodingRegistry.prototype, "encodingService", void 0);
EncodingRegistry = (0, tslib_1.__decorate)([
    (0, inversify_1.injectable)()
], EncodingRegistry);
exports.EncodingRegistry = EncodingRegistry;
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