tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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index.js (2114B)

      1 /* This Source Code Form is subject to the terms of the Mozilla Public
      2 * License, v. 2.0. If a copy of the MPL was not distributed with this
      3 * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
      4 
      5 export * from "./source-search";
      6 export * from "../ui";
      7 export * from "./tokens";
      8 
      9 import { createEditor } from "./create-editor";
     10 
     11 let editor;
     12 
     13 export function getEditor() {
     14  if (editor) {
     15    return editor;
     16  }
     17 
     18  editor = createEditor({ cm6: true });
     19  return editor;
     20 }
     21 
     22 export function removeEditor() {
     23  editor = null;
     24 }
     25 
     26 /**
     27 *  Update line wrapping for the codemirror editor.
     28 */
     29 export function updateEditorLineWrapping(value) {
     30  if (!editor) {
     31    return;
     32  }
     33  editor.setLineWrapping(value);
     34 }
     35 
     36 export function toWasmSourceLine(offset) {
     37  return editor.wasmOffsetToLine(offset) || 0;
     38 }
     39 
     40 /**
     41 * Convert source lines / WASM line offsets to Codemirror lines
     42 *
     43 * @param {object} source
     44 * @param {number} lineOrOffset
     45 * @returns
     46 */
     47 export function toEditorLine(source, lineOrOffset) {
     48  if (editor.isWasm && !source.isOriginal) {
     49    // TODO ensure offset is always "mappable" to edit line.
     50    return toWasmSourceLine(lineOrOffset) + 1;
     51  }
     52  return lineOrOffset;
     53 }
     54 
     55 export function fromEditorLine(source, line) {
     56  // Also ignore the original source related to the .wasm file.
     57  if (editor.isWasm && !source.isOriginal) {
     58    // Content lines is 1-based in CM6 and 0-based in WASM
     59    return editor.lineToWasmOffset(line - 1);
     60  }
     61  return line;
     62 }
     63 
     64 export function toEditorPosition(location) {
     65  // Note that Spidermonkey, Debugger frontend and CodeMirror are all consistent regarding column
     66  // and are 0-based. But only CodeMirror consider the line to be 0-based while the two others
     67  // consider lines to be 1-based.
     68  const isSourceWasm = editor.isWasm && !location.source.isOriginal;
     69  return {
     70    line: toEditorLine(location.source, location.line),
     71    column: isSourceWasm || !location.column ? 0 : location.column,
     72  };
     73 }
     74 
     75 export function toSourceLine(source, line) {
     76  if (editor.isWasm && !source.isOriginal) {
     77    return editor.lineToWasmOffset(line - 1);
     78  }
     79  return line;
     80 }