mirror of
https://github.com/react/react-native-devtools-frontend.git
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Benedikt Meurer
f6d21b7784
Also sync other @codemirror/xxx packages to appropriate versions. This fixes the issue that cursor position (and more generally selection) is not restored correctly when focus changes. Fixed: chromium:1343697 Also-By: marijnh@gmail.com Change-Id: I431900e014a35d12227ad5fa30d0eb1357df6e8b Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/3792110 Commit-Queue: Benedikt Meurer <bmeurer@chromium.org> Auto-Submit: Benedikt Meurer <bmeurer@chromium.org> Reviewed-by: Kim-Anh Tran <kimanh@chromium.org>
63 lines
2.9 KiB
TypeScript
63 lines
2.9 KiB
TypeScript
/*
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* Copyright (C) 2022 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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import * as CodeMirror from '../../third_party/codemirror.next/codemirror.next.js';
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type Tokenizer = (line: string, callback: (value: string, style: string|null) => void) => void;
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export function createCssTokenizer(): Tokenizer {
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async function tokenize(line: string, callback: (value: string, style: string|null) => void): Promise<void> {
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const streamParser = await CodeMirror.cssStreamParser();
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const stream = new CodeMirror.StringStream(line, 4, 2);
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const state = streamParser.startState();
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let lastPos = stream.pos;
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while (!stream.eol()) {
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stream.start = lastPos;
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let tokenType = streamParser.token(stream, state);
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/**
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* We expect unknown properties (like `unknownProp: unknownPropVal`) to still be
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* formatted correctly. However, `tokenType` for such properties are marked
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* as `error` from CodeMirror side and the internal state of the parser becomes `maybeprop`.
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*
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* So, we handle that specific keyword to be marked as `property` even though it is
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* not a known property. We do this because for our formatting purposes it doesn't matter
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* whether a property is a known CSS property or not.
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*/
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if (tokenType === 'error' && state.state === 'maybeprop') {
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tokenType = 'property';
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}
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const segment = stream.current();
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callback(segment, tokenType);
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lastPos = stream.pos;
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}
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}
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return tokenize;
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}
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