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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
const { Cu } = require("chrome");
/**
* Returns the grid fragment array with all the grid fragment data stringifiable.
*
* @param {Object} fragments
* Grid fragment object.
* @return {Array} representation with the grid fragment data stringifiable.
*/
function getStringifiableFragments(fragments = []) {
if (fragments[0] && Cu.isDeadWrapper(fragments[0])) {
return {};
}
return fragments.map(getStringifiableFragment);
}
/**
* Returns a string representation of the CSS Grid data as returned by
* node.getGridFragments. This is useful to compare grid state at each update and redraw
* the highlighter if needed. It also seralizes the grid fragment data so it can be used
* by protocol.js.
*
* @param {Object} fragments
* Grid fragment object.
* @return {String} representation of the CSS grid fragment data.
*/
function stringifyGridFragments(fragments) {
return JSON.stringify(getStringifiableFragments(fragments));
}
function getStringifiableFragment(fragment) {
return {
cols: getStringifiableDimension(fragment.cols),
rows: getStringifiableDimension(fragment.rows)
};
}
function getStringifiableDimension(dimension) {
return {
lines: [...dimension.lines].map(getStringifiableLine),
tracks: [...dimension.tracks].map(getStringifiableTrack),
};
}
function getStringifiableLine({ breadth, number, start, names }) {
return { breadth, number, start, names };
}
function getStringifiableTrack({ breadth, start, state, type }) {
return { breadth, start, state, type };
}
exports.getStringifiableFragments = getStringifiableFragments;
exports.stringifyGridFragments = stringifyGridFragments;
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