55 lines
1.6 KiB
JavaScript
55 lines
1.6 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 {Cc, Ci, Cu} = require("chrome");
|
|
const {deviceSpec} = require("devtools/shared/specs/device");
|
|
const protocol = require("devtools/shared/protocol");
|
|
const defer = require("devtools/shared/defer");
|
|
|
|
const DeviceFront = protocol.FrontClassWithSpec(deviceSpec, {
|
|
initialize: function (client, form) {
|
|
protocol.Front.prototype.initialize.call(this, client);
|
|
this.actorID = form.deviceActor;
|
|
this.manage(this);
|
|
},
|
|
|
|
screenshotToBlob: function () {
|
|
return this.screenshotToDataURL().then(longstr => {
|
|
return longstr.string().then(dataURL => {
|
|
let deferred = defer();
|
|
longstr.release().then(null, Cu.reportError);
|
|
let req = Cc["@mozilla.org/xmlextras/xmlhttprequest;1"]
|
|
.createInstance(Ci.nsIXMLHttpRequest);
|
|
req.open("GET", dataURL, true);
|
|
req.responseType = "blob";
|
|
req.onload = () => {
|
|
deferred.resolve(req.response);
|
|
};
|
|
req.onerror = () => {
|
|
deferred.reject(req.status);
|
|
};
|
|
req.send();
|
|
return deferred.promise;
|
|
});
|
|
});
|
|
},
|
|
});
|
|
|
|
const _knownDeviceFronts = new WeakMap();
|
|
|
|
exports.getDeviceFront = function (client, form) {
|
|
if (!form.deviceActor) {
|
|
return null;
|
|
}
|
|
|
|
if (_knownDeviceFronts.has(client)) {
|
|
return _knownDeviceFronts.get(client);
|
|
}
|
|
|
|
let front = new DeviceFront(client, form);
|
|
_knownDeviceFronts.set(client, front);
|
|
return front;
|
|
};
|