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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 {
Component,
} = require("resource://devtools/client/shared/vendor/react.js");
const dom = require("resource://devtools/client/shared/vendor/react-dom-factories.js");
const PropTypes = require("resource://devtools/client/shared/vendor/react-prop-types.js");
/*
* Response preview component
* Display HTML content within a sandbox enabled iframe
*/
class HTMLPreview extends Component {
static get propTypes() {
return {
responseContent: PropTypes.object.isRequired,
};
}
componentDidMount() {
const { container } = this.refs;
const iframe = container.ownerDocument.createXULElement("iframe");
this.iframe = iframe;
iframe.setAttribute("type", "content");
iframe.setAttribute("remote", "true");
// For some reason, when we try to select some text,
// a drag of the whole page is initiated.
// Workaround this by canceling any start of drag.
iframe.addEventListener("dragstart", e => e.preventDefault(), {
capture: true,
});
// Bug 1800916 allow interaction with the preview page until
// we find a way to prevent navigation without preventing copy paste from it.
//
// iframe.addEventListener("mousedown", e => e.preventDefault(), {
// capture: true,
// });
container.appendChild(iframe);
// browsingContext attribute is only available after the iframe
// is attached to the DOM Tree.
iframe.browsingContext.allowJavascript = false;
this.#updatePreview();
}
componentDidUpdate() {
this.#updatePreview();
}
componentWillUnmount() {
this.iframe.remove();
}
#updatePreview() {
const { responseContent } = this.props;
const htmlBody = responseContent ? responseContent.content.text : "";
this.iframe.setAttribute(
"src",
"data:text/html;charset=UTF-8," + encodeURIComponent(htmlBody)
);
}
render() {
return dom.div({ className: "html-preview", ref: "container" });
}
}
module.exports = HTMLPreview;
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