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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/>. */
// @flow
/**
* Utils for keyboard command strings
* @module utils/text
*/
import Services from "devtools-services";
const { appinfo } = Services;
const isMacOS = appinfo.OS === "Darwin";
/**
* Formats key for use in tooltips
* For macOS we use the following unicode
*
* cmd ⌘ = \u2318
* shift ⇧ – \u21E7
* option (alt) ⌥ \u2325
*
* For Win/Lin this replaces CommandOrControl or CmdOrCtrl with Ctrl
*
* @memberof utils/text
* @static
*/
export function formatKeyShortcut(shortcut: string): string {
if (isMacOS) {
return shortcut
.replace(/Shift\+/g, "\u21E7")
.replace(/Command\+|Cmd\+/g, "\u2318")
.replace(/CommandOrControl\+|CmdOrCtrl\+/g, "\u2318")
.replace(/Alt\+/g, "\u2325");
}
return shortcut
.replace(/CommandOrControl\+|CmdOrCtrl\+/g, `${L10N.getStr("ctrl")}+`)
.replace(/Shift\+/g, "Shift+");
}
/**
* Truncates the received text to the maxLength in the format:
* Original: 'this is a very long text and ends here'
* Truncated: 'this is a ver...and ends here'
* @param {String} sourceText - Source text
* @param {Number} maxLength - Max allowed length
* @memberof utils/text
* @static
*/
export function truncateMiddleText(
sourceText: string,
maxLength: number
): string {
let truncatedText = sourceText;
if (sourceText.length > maxLength) {
truncatedText = `${sourceText.substring(
0,
Math.round(maxLength / 2) - 2
)}…${sourceText.substring(
sourceText.length - Math.round(maxLength / 2 - 1)
)}`;
}
return truncatedText;
}
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