зеркало из https://github.com/mozilla/gecko-dev.git
78 строки
2.2 KiB
JavaScript
78 строки
2.2 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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const { Cu } = require("chrome");
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/**
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* Returns the grid fragment array with all the grid fragment data stringifiable.
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*
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* @param {Object} fragments
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* Grid fragment object.
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* @return {Array} representation with the grid fragment data stringifiable.
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*/
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function getStringifiableFragments(fragments = []) {
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if (fragments[0] && Cu.isDeadWrapper(fragments[0])) {
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return {};
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}
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return fragments.map(getStringifiableFragment);
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}
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/**
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* Returns a string representation of the CSS Grid data as returned by
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* node.getGridFragments. This is useful to compare grid state at each update and redraw
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* the highlighter if needed. It also seralizes the grid fragment data so it can be used
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* by protocol.js.
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*
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* @param {Object} fragments
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* Grid fragment object.
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* @return {String} representation of the CSS grid fragment data.
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*/
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function stringifyGridFragments(fragments) {
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return JSON.stringify(getStringifiableFragments(fragments));
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}
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function getStringifiableFragment(fragment) {
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return {
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areas: getStringifiableAreas(fragment.areas),
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cols: getStringifiableDimension(fragment.cols),
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rows: getStringifiableDimension(fragment.rows),
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};
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}
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function getStringifiableAreas(areas) {
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return [...areas].map(getStringifiableArea);
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}
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function getStringifiableDimension(dimension) {
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return {
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lines: [...dimension.lines].map(getStringifiableLine),
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tracks: [...dimension.tracks].map(getStringifiableTrack),
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};
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}
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function getStringifiableArea({
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columnEnd,
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columnStart,
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name,
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rowEnd,
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rowStart,
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type,
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}) {
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return { columnEnd, columnStart, name, rowEnd, rowStart, type };
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}
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function getStringifiableLine({ breadth, names, number, start, type }) {
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return { breadth, names, number, start, type };
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}
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function getStringifiableTrack({ breadth, start, state, type }) {
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return { breadth, start, state, type };
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}
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exports.getStringifiableFragments = getStringifiableFragments;
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exports.stringifyGridFragments = stringifyGridFragments;
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