зеркало из https://github.com/mozilla/gecko-dev.git
66 строки
1.6 KiB
JavaScript
66 строки
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";
|
|
|
|
var protocol = require("devtools/shared/protocol");
|
|
const { arrayBufferSpec } = require("devtools/shared/specs/array-buffer");
|
|
|
|
/**
|
|
* Creates an actor for the specified ArrayBuffer.
|
|
*
|
|
* @param {DevToolsServerConnection} conn
|
|
* The server connection.
|
|
* @param buffer ArrayBuffer
|
|
* The buffer.
|
|
*/
|
|
const ArrayBufferActor = protocol.ActorClassWithSpec(arrayBufferSpec, {
|
|
initialize: function(conn, buffer) {
|
|
protocol.Actor.prototype.initialize.call(this, conn);
|
|
this.buffer = buffer;
|
|
this.bufferLength = buffer.byteLength;
|
|
},
|
|
|
|
rawValue: function() {
|
|
return this.buffer;
|
|
},
|
|
|
|
form: function() {
|
|
return {
|
|
typeName: this.typeName,
|
|
length: this.bufferLength,
|
|
actor: this.actorID,
|
|
};
|
|
},
|
|
|
|
slice(start, count) {
|
|
const slice = new Uint8Array(this.buffer, start, count);
|
|
const parts = [];
|
|
let offset = 0;
|
|
const PortionSize = 0x6000; // keep it divisible by 3 for btoa() and join()
|
|
while (offset + PortionSize < count) {
|
|
parts.push(
|
|
btoa(
|
|
String.fromCharCode.apply(
|
|
null,
|
|
slice.subarray(offset, offset + PortionSize)
|
|
)
|
|
)
|
|
);
|
|
offset += PortionSize;
|
|
}
|
|
parts.push(
|
|
btoa(String.fromCharCode.apply(null, slice.subarray(offset, count)))
|
|
);
|
|
return {
|
|
from: this.actorID,
|
|
encoded: parts.join(""),
|
|
};
|
|
},
|
|
});
|
|
|
|
module.exports = {
|
|
ArrayBufferActor,
|
|
};
|