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-rw-r--r--devtools/client/netmonitor/src/components/previews/FontPreview.js135
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diff --git a/devtools/client/netmonitor/src/components/previews/FontPreview.js b/devtools/client/netmonitor/src/components/previews/FontPreview.js
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+++ b/devtools/client/netmonitor/src/components/previews/FontPreview.js
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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 {
+ gDevTools,
+} = require("resource://devtools/client/framework/devtools.js");
+const {
+ Component,
+} = require("resource://devtools/client/shared/vendor/react.js");
+const PropTypes = require("resource://devtools/client/shared/vendor/react-prop-types.js");
+const {
+ L10N,
+} = require("resource://devtools/client/netmonitor/src/utils/l10n.js");
+
+const {
+ div,
+ img,
+} = require("resource://devtools/client/shared/vendor/react-dom-factories.js");
+
+const { getColor } = require("resource://devtools/client/shared/theme.js");
+
+const FONT_NAME = L10N.getStr("netmonitor.response.name");
+const FONT_MIME_TYPE = L10N.getStr("netmonitor.response.mime");
+const FONT_PREVIEW_FAILED = L10N.getStr(
+ "netmonitor.response.fontPreviewFailed"
+);
+
+const FONT_PREVIEW_TEXT =
+ "ABCDEFGHIJKLM\nNOPQRSTUVWXYZ\nabcdefghijklm\nnopqrstuvwxyz\n0123456789";
+
+class FontPreview extends Component {
+ static get propTypes() {
+ return {
+ connector: PropTypes.object.isRequired,
+ mimeType: PropTypes.string,
+ url: PropTypes.string,
+ };
+ }
+
+ constructor(props) {
+ super(props);
+
+ this.state = {
+ name: "",
+ dataURL: "",
+ };
+
+ this.onThemeChanged = this.onThemeChanged.bind(this);
+ }
+
+ componentDidMount() {
+ this.getPreview();
+
+ // Listen for theme changes as the color of the preview depends on the theme
+ gDevTools.on("theme-switched", this.onThemeChanged);
+ }
+
+ componentDidUpdate(prevProps) {
+ const { url } = this.props;
+ if (prevProps.url !== url) {
+ this.getPreview();
+ }
+ }
+
+ componentWillUnmount() {
+ gDevTools.off("theme-switched", this.onThemeChanged);
+ }
+
+ /**
+ * Handler for the "theme-switched" event.
+ */
+ onThemeChanged(frame) {
+ if (frame === window) {
+ this.getPreview();
+ }
+ }
+
+ /**
+ * Generate the font preview and receives information about the font.
+ */
+ async getPreview() {
+ const { connector } = this.props;
+
+ const toolbox = connector.getToolbox();
+ const inspectorFront = await toolbox.target.getFront("inspector");
+ const { pageStyle } = inspectorFront;
+ const pageFontFaces = await pageStyle.getAllUsedFontFaces({
+ includePreviews: true,
+ includeVariations: false,
+ previewText: FONT_PREVIEW_TEXT,
+ previewFillStyle: getColor("body-color"),
+ });
+
+ const fontFace = pageFontFaces.find(
+ pageFontFace => pageFontFace.URI === this.props.url
+ );
+
+ this.setState({
+ name: fontFace?.name ?? "",
+ dataURL: (await fontFace?.preview.data.string()) ?? "",
+ });
+ }
+
+ render() {
+ const { mimeType } = this.props;
+ const { name, dataURL } = this.state;
+
+ if (dataURL === "") {
+ return div({ className: "empty-notice" }, FONT_PREVIEW_FAILED);
+ }
+
+ return div(
+ { className: "panel-container response-font-box devtools-monospace" },
+ img({
+ className: "response-font",
+ src: dataURL,
+ alt: "",
+ }),
+ div(
+ { className: "response-summary" },
+ div({ className: "tabpanel-summary-label" }, FONT_NAME),
+ div({ className: "tabpanel-summary-value" }, name)
+ ),
+ div(
+ { className: "response-summary" },
+ div({ className: "tabpanel-summary-label" }, FONT_MIME_TYPE),
+ div({ className: "tabpanel-summary-value" }, mimeType)
+ )
+ );
+ }
+}
+
+module.exports = FontPreview;