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- //------------------------------------------------------------
- // Game Framework
- // Copyright © 2013-2021 loyalsoft. All rights reserved.
- // Homepage: http://www.game7000.com/
- // Feedback: http://www.game7000.com/
- //------------------------------------------------------------
- #if !UNITY_2018_3_OR_NEWER
- using GameFramework;
- using GameFramework.Download;
- using System;
- using System.Collections.Generic;
- using UnityEngine;
- namespace UnityGameFramework.Runtime
- {
- /// <summary>
- /// WWW 下载代理辅助器。
- /// </summary>
- public class WWWDownloadAgentHelper : DownloadAgentHelperBase, IDisposable
- {
- private WWW m_WWW = null;
- private int m_LastDownloadedSize = 0;
- private bool m_Disposed = false;
- private EventHandler<DownloadAgentHelperUpdateBytesEventArgs> m_DownloadAgentHelperUpdateBytesEventHandler = null;
- private EventHandler<DownloadAgentHelperUpdateLengthEventArgs> m_DownloadAgentHelperUpdateLengthEventHandler = null;
- private EventHandler<DownloadAgentHelperCompleteEventArgs> m_DownloadAgentHelperCompleteEventHandler = null;
- private EventHandler<DownloadAgentHelperErrorEventArgs> m_DownloadAgentHelperErrorEventHandler = null;
- /// <summary>
- /// 下载代理辅助器更新数据流事件。
- /// </summary>
- public override event EventHandler<DownloadAgentHelperUpdateBytesEventArgs> DownloadAgentHelperUpdateBytes
- {
- add
- {
- m_DownloadAgentHelperUpdateBytesEventHandler += value;
- }
- remove
- {
- m_DownloadAgentHelperUpdateBytesEventHandler -= value;
- }
- }
- /// <summary>
- /// 下载代理辅助器更新数据大小事件。
- /// </summary>
- public override event EventHandler<DownloadAgentHelperUpdateLengthEventArgs> DownloadAgentHelperUpdateLength
- {
- add
- {
- m_DownloadAgentHelperUpdateLengthEventHandler += value;
- }
- remove
- {
- m_DownloadAgentHelperUpdateLengthEventHandler -= value;
- }
- }
- /// <summary>
- /// 下载代理辅助器完成事件。
- /// </summary>
- public override event EventHandler<DownloadAgentHelperCompleteEventArgs> DownloadAgentHelperComplete
- {
- add
- {
- m_DownloadAgentHelperCompleteEventHandler += value;
- }
- remove
- {
- m_DownloadAgentHelperCompleteEventHandler -= value;
- }
- }
- /// <summary>
- /// 下载代理辅助器错误事件。
- /// </summary>
- public override event EventHandler<DownloadAgentHelperErrorEventArgs> DownloadAgentHelperError
- {
- add
- {
- m_DownloadAgentHelperErrorEventHandler += value;
- }
- remove
- {
- m_DownloadAgentHelperErrorEventHandler -= value;
- }
- }
- /// <summary>
- /// 通过下载代理辅助器下载指定地址的数据。
- /// </summary>
- /// <param name="downloadUri">下载地址。</param>
- /// <param name="userData">用户自定义数据。</param>
- public override void Download(string downloadUri, object userData)
- {
- if (m_DownloadAgentHelperUpdateBytesEventHandler == null || m_DownloadAgentHelperUpdateLengthEventHandler == null || m_DownloadAgentHelperCompleteEventHandler == null || m_DownloadAgentHelperErrorEventHandler == null)
- {
- Log.Fatal("Download agent helper handler is invalid.");
- return;
- }
- m_WWW = new WWW(downloadUri);
- }
- /// <summary>
- /// 通过下载代理辅助器下载指定地址的数据。
- /// </summary>
- /// <param name="downloadUri">下载地址。</param>
- /// <param name="fromPosition">下载数据起始位置。</param>
- /// <param name="userData">用户自定义数据。</param>
- public override void Download(string downloadUri, long fromPosition, object userData)
- {
- if (m_DownloadAgentHelperUpdateBytesEventHandler == null || m_DownloadAgentHelperUpdateLengthEventHandler == null || m_DownloadAgentHelperCompleteEventHandler == null || m_DownloadAgentHelperErrorEventHandler == null)
- {
- Log.Fatal("Download agent helper handler is invalid.");
- return;
- }
- Dictionary<string, string> header = new Dictionary<string, string>
- {
- { "Range", Utility.Text.Format("bytes={0}-", fromPosition.ToString()) }
- };
- m_WWW = new WWW(downloadUri, null, header);
- }
- /// <summary>
- /// 通过下载代理辅助器下载指定地址的数据。
- /// </summary>
- /// <param name="downloadUri">下载地址。</param>
- /// <param name="fromPosition">下载数据起始位置。</param>
- /// <param name="toPosition">下载数据结束位置。</param>
- /// <param name="userData">用户自定义数据。</param>
- public override void Download(string downloadUri, long fromPosition, long toPosition, object userData)
- {
- if (m_DownloadAgentHelperUpdateBytesEventHandler == null || m_DownloadAgentHelperUpdateLengthEventHandler == null || m_DownloadAgentHelperCompleteEventHandler == null || m_DownloadAgentHelperErrorEventHandler == null)
- {
- Log.Fatal("Download agent helper handler is invalid.");
- return;
- }
- Dictionary<string, string> header = new Dictionary<string, string>
- {
- { "Range", Utility.Text.Format("bytes={0}-{1}", fromPosition.ToString(), toPosition.ToString()) }
- };
- m_WWW = new WWW(downloadUri, null, header);
- }
- /// <summary>
- /// 重置下载代理辅助器。
- /// </summary>
- public override void Reset()
- {
- if (m_WWW != null)
- {
- m_WWW.Dispose();
- m_WWW = null;
- }
- m_LastDownloadedSize = 0;
- }
- /// <summary>
- /// 释放资源。
- /// </summary>
- public void Dispose()
- {
- Dispose(true);
- GC.SuppressFinalize(this);
- }
- /// <summary>
- /// 释放资源。
- /// </summary>
- /// <param name="disposing">释放资源标记。</param>
- protected virtual void Dispose(bool disposing)
- {
- if (m_Disposed)
- {
- return;
- }
- if (disposing)
- {
- if (m_WWW != null)
- {
- m_WWW.Dispose();
- m_WWW = null;
- }
- }
- m_Disposed = true;
- }
- private void Update()
- {
- if (m_WWW == null)
- {
- return;
- }
- int deltaLength = m_WWW.bytesDownloaded - m_LastDownloadedSize;
- if (deltaLength > 0)
- {
- m_LastDownloadedSize = m_WWW.bytesDownloaded;
- DownloadAgentHelperUpdateLengthEventArgs downloadAgentHelperUpdateLengthEventArgs = DownloadAgentHelperUpdateLengthEventArgs.Create(deltaLength);
- m_DownloadAgentHelperUpdateLengthEventHandler(this, downloadAgentHelperUpdateLengthEventArgs);
- ReferencePool.Release(downloadAgentHelperUpdateLengthEventArgs);
- }
- if (m_WWW == null)
- {
- return;
- }
- if (!m_WWW.isDone)
- {
- return;
- }
- if (!string.IsNullOrEmpty(m_WWW.error))
- {
- DownloadAgentHelperErrorEventArgs dodwnloadAgentHelperErrorEventArgs = DownloadAgentHelperErrorEventArgs.Create(m_WWW.error.StartsWith(RangeNotSatisfiableErrorCode.ToString(), StringComparison.Ordinal), m_WWW.error);
- m_DownloadAgentHelperErrorEventHandler(this, dodwnloadAgentHelperErrorEventArgs);
- ReferencePool.Release(dodwnloadAgentHelperErrorEventArgs);
- }
- else
- {
- byte[] bytes = m_WWW.bytes;
- DownloadAgentHelperUpdateBytesEventArgs downloadAgentHelperUpdateBytesEventArgs = DownloadAgentHelperUpdateBytesEventArgs.Create(bytes, 0, bytes.Length);
- m_DownloadAgentHelperUpdateBytesEventHandler(this, downloadAgentHelperUpdateBytesEventArgs);
- ReferencePool.Release(downloadAgentHelperUpdateBytesEventArgs);
- DownloadAgentHelperCompleteEventArgs downloadAgentHelperCompleteEventArgs = DownloadAgentHelperCompleteEventArgs.Create(bytes.LongLength);
- m_DownloadAgentHelperCompleteEventHandler(this, downloadAgentHelperCompleteEventArgs);
- ReferencePool.Release(downloadAgentHelperCompleteEventArgs);
- }
- }
- }
- }
- #endif
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