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bf50a920a5
Differential Revision: https://phabricator.services.mozilla.com/D42935 --HG-- extra : moz-landing-system : lando
100 lines
2.9 KiB
JavaScript
100 lines
2.9 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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/**
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* An object of this type represents an original source for the style
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* editor. An "original" source is one that is mentioned in a source
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* map.
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*
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* @param {String} url
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* The URL of the original source.
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* @param {String} sourceID
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* The source ID of the original source, as used by the source
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* map service.
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* @param {SourceMapService} sourceMapService
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* The source map service; @see Toolbox.sourceMapService
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*/
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function OriginalSource(url, sourceId, sourceMapService) {
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this.isOriginalSource = true;
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this._url = url;
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this._sourceId = sourceId;
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this._sourceMapService = sourceMapService;
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}
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OriginalSource.prototype = {
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/** Get the original source's URL. */
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get url() {
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return this._url;
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},
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/** Get the original source's URL. */
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get href() {
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return this._url;
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},
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/**
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* Return a promise that will resolve to the original source's full
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* text. The return result is actually an object with a single
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* `string` method; this method will return the source text as a
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* string. This is done because the style editor elsewhere expects
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* a long string actor.
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*/
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getText: function() {
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if (!this._sourcePromise) {
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this._sourcePromise = this._sourceMapService
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.getOriginalSourceText(this._sourceId)
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.then(contents => {
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// Make it look like a long string actor.
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return {
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string: () => contents.text,
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};
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});
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}
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return this._sourcePromise;
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},
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/**
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* Given a source-mapped, generated style sheet, a line, and a
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* column, return the corresponding original location in this style
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* sheet.
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*
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* @param {StyleSheetFront} relatedSheet
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* The generated style sheet's actor
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* @param {Number} line
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* Line number.
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* @param {Number} column
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* Column number.
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* @return {Location}
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* The original location, an object with at least
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* `sourceUrl`, `source`, `styleSheet`, `line`, and `column`
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* properties.
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*/
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getOriginalLocation: function(relatedSheet, line, column) {
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const { href, nodeHref, actorID: sourceId } = relatedSheet;
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const sourceUrl = href || nodeHref;
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return this._sourceMapService
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.getOriginalLocation({
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sourceId,
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line,
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column,
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sourceUrl,
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})
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.then(location => {
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// Add some properties for the style editor.
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location.source = location.sourceUrl;
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location.styleSheet = relatedSheet;
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return location;
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});
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},
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// Dummy implementations, as we never emit an event.
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on: function() {},
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off: function() {},
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};
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exports.OriginalSource = OriginalSource;
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