mirror of
https://github.com/gyurix1968/guacamole-client.git
synced 2025-09-07 13:41:21 +00:00
136 lines
3.9 KiB
JavaScript
136 lines
3.9 KiB
JavaScript
/*
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* Copyright (C) 2013 Glyptodon LLC
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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var Guacamole = Guacamole || {};
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/**
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* An input stream abstraction used by the Guacamole client to facilitate
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* transfer of files or other binary data.
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*
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* @constructor
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* @param {String} mimetype The mimetype of the data this stream will receive.
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*/
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Guacamole.InputStream = function(mimetype) {
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/**
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* Reference to this Guacamole.InputStream.
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* @private
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*/
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var guac_stream = this;
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/**
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* The length of this Guacamole.InputStream in bytes.
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* @private
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*/
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var length = 0;
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/**
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* The mimetype of the data contained within this blob.
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*/
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this.mimetype = mimetype;
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// Get blob builder
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var blob_builder;
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if (window.BlobBuilder) blob_builder = new BlobBuilder();
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else if (window.WebKitBlobBuilder) blob_builder = new WebKitBlobBuilder();
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else if (window.MozBlobBuilder) blob_builder = new MozBlobBuilder();
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else
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blob_builder = new (function() {
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var blobs = [];
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/** @ignore */
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this.append = function(data) {
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blobs.push(new Blob([data], {"type": mimetype}));
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};
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/** @ignore */
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this.getBlob = function() {
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return new Blob(blobs, {"type": mimetype});
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};
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})();
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/**
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* Receives the given ArrayBuffer, storing its data within this
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* Guacamole.InputStream.
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*
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* @param {ArrayBuffer} buffer An ArrayBuffer containing the data to be
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* received.
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*/
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this.receive = function(buffer) {
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blob_builder.append(buffer);
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length += buffer.byteLength;
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// Call handler, if present
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if (guac_stream.onreceive)
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guac_stream.onreceive(buffer.byteLength);
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};
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/**
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* Closes this Guacamole.InputStream such that no further data will be
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* written.
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*/
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this.close = function() {
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// Call handler, if present
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if (guac_stream.onclose)
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guac_stream.onclose();
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// NOTE: Currently not enforced.
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};
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/**
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* Returns the current length of this Guacamole.InputStream, in bytes.
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* @return {Number} The current length of this Guacamole.InputStream.
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*/
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this.getLength = function() {
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return length;
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};
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/**
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* Returns the contents of this Guacamole.InputStream as a Blob.
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* @return {Blob} The contents of this Guacamole.InputStream.
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*/
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this.getBlob = function() {
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return blob_builder.getBlob();
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};
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/**
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* Fired once for every blob of data received.
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*
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* @event
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* @param {Number} length The number of bytes received.
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*/
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this.onreceive = null;
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/**
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* Fired once this stream is finished and no further data will be written.
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* @event
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*/
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this.onclose = null;
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};
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