gecko-dev/devtools/server/actors/screenshot.js

43 строки
1.3 KiB
JavaScript

/* 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 protocol = require("devtools/shared/protocol");
const { captureScreenshot } = require("devtools/shared/screenshot/capture");
const { screenshotSpec } = require("devtools/shared/specs/screenshot");
exports.ScreenshotActor = protocol.ActorClassWithSpec(screenshotSpec, {
initialize: function(conn, targetActor) {
protocol.Actor.prototype.initialize.call(this, conn);
this.targetActor = targetActor;
this.document = targetActor.window.document;
this._onNavigate = this._onNavigate.bind(this);
this.targetActor.on("navigate", this._onNavigate);
},
destroy() {
this.targetActor.off("navigate", this._onNavigate);
protocol.Actor.prototype.destroy.call(this);
},
_onNavigate() {
this.document = this.targetActor.window.document;
},
capture: function(args) {
if (args.nodeActorID) {
const nodeActor = this.conn.getActor(args.nodeActorID);
if (!nodeActor) {
throw new Error(
`Screenshot actor failed to find Node actor for '${args.nodeActorID}'`
);
}
args.rawNode = nodeActor.rawNode;
}
return captureScreenshot(args, this.document);
},
});