зеркало из https://github.com/mozilla/gecko-dev.git
55 строки
1.6 KiB
JavaScript
55 строки
1.6 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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const {Cc, Ci, Cu} = require("chrome");
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const {deviceSpec} = require("devtools/shared/specs/device");
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const protocol = require("devtools/shared/protocol");
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const defer = require("devtools/shared/defer");
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const DeviceFront = protocol.FrontClassWithSpec(deviceSpec, {
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initialize: function (client, form) {
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protocol.Front.prototype.initialize.call(this, client);
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this.actorID = form.deviceActor;
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this.manage(this);
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},
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screenshotToBlob: function () {
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return this.screenshotToDataURL().then(longstr => {
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return longstr.string().then(dataURL => {
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let deferred = defer();
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longstr.release().catch(Cu.reportError);
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let req = Cc["@mozilla.org/xmlextras/xmlhttprequest;1"]
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.createInstance(Ci.nsIXMLHttpRequest);
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req.open("GET", dataURL, true);
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req.responseType = "blob";
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req.onload = () => {
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deferred.resolve(req.response);
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};
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req.onerror = () => {
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deferred.reject(req.status);
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};
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req.send();
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return deferred.promise;
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});
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});
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},
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});
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const _knownDeviceFronts = new WeakMap();
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exports.getDeviceFront = function (client, form) {
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if (!form.deviceActor) {
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return null;
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}
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if (_knownDeviceFronts.has(client)) {
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return _knownDeviceFronts.get(client);
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}
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let front = new DeviceFront(client, form);
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_knownDeviceFronts.set(client, front);
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return front;
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};
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