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350 lines
16 KiB
C#
350 lines
16 KiB
C#
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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Diagnostics.CodeAnalysis;
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using System.Globalization;
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using System.IO;
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using System.Linq;
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using System.Web;
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using System.Web.Routing;
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using System.Web.WebPages;
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using Microsoft.Internal.Web.Utils;
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using Resources;
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namespace Microsoft.Web.Helpers
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{
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public static class Video
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{
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private const string FlashCab =
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"http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab";
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private const string FlashClassId = "clsid:d27cdb6e-ae6d-11cf-96b8-444553540000";
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private const string FlashMimeType = "application/x-shockwave-flash";
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private const string MediaPlayerClassId = "clsid:6BF52A52-394A-11D3-B153-00C04F79FAA6";
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private const string MediaPlayerMimeType = "application/x-mplayer2";
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private const string OleMimeType = "application/x-oleobject";
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private const string SilverlightMimeType = "application/x-silverlight-2";
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// These attributes can't be specified using anonymous objects (either because they are available as separate arguments or because
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// they don't make sense in the context of the helper).
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private static readonly string[] _globalBlacklist = new[] { "width", "height", "type", "data", "classid", "codebase" };
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private static readonly string[] _mediaPlayerBlacklist = new[] { "autoStart", "playCount", "uiMode", "stretchToFit", "enableContextMenu", "mute", "volume", "baseURL" };
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private static readonly string[] _silverlightBlacklist = new[] { "background", "initparams", "minruntimeversion", "autoUpgrade" };
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private static readonly string[] _flashBlacklist = new[] { "play", "loop", "menu", "bgColor", "quality", "scale", "wmode", "base" };
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private static VirtualPathUtilityWrapper _pathUtility = new VirtualPathUtilityWrapper();
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#if CODE_COVERAGE
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[ExcludeFromCodeCoverage]
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#endif
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private static HttpContextBase HttpContext
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{
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get
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{
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var httpContext = System.Web.HttpContext.Current;
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return httpContext == null ? null : new HttpContextWrapper(httpContext);
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}
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}
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// see: http://kb2.adobe.com/cps/127/tn_12701.html
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#if CODE_COVERAGE
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[ExcludeFromCodeCoverage]
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#endif
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[SuppressMessage("Microsoft.Design", "CA1054:UriParametersShouldNotBeStrings", MessageId = "10#",
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Justification = "string parameter passed to flash in object tag")]
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[SuppressMessage("StyleCop.CSharp.NamingRules", "SA1305:FieldNamesMustNotUseHungarianNotation", Target = "bgColor",
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Justification = "This method is public and the parameter name cannot be changed")]
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public static HelperResult Flash(string path, string width = null, string height = null,
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bool play = true, bool loop = true, bool menu = true, string bgColor = null,
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string quality = null, string scale = null, string windowMode = null, string baseUrl = null,
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string version = null, object options = null, object htmlAttributes = null, string embedName = null)
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{
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return Flash(HttpContext, _pathUtility, path, width, height, play, loop, menu, bgColor,
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quality, scale, windowMode, baseUrl, version, options, htmlAttributes, embedName);
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}
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// see: http://msdn.microsoft.com/en-us/library/aa392321
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#if CODE_COVERAGE
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[ExcludeFromCodeCoverage]
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#endif
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[SuppressMessage("Microsoft.Design", "CA1054:UriParametersShouldNotBeStrings", MessageId = "10#",
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Justification = "string parameter passed to media player in object tag")]
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public static HelperResult MediaPlayer(string path, string width = null, string height = null,
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bool autoStart = true, int playCount = 1, string uiMode = null, bool stretchToFit = false,
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bool enableContextMenu = true, bool mute = false, int volume = -1, string baseUrl = null,
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object options = null, object htmlAttributes = null, string embedName = null)
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{
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return MediaPlayer(HttpContext, _pathUtility, path, width, height, autoStart, playCount, uiMode, stretchToFit,
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enableContextMenu, mute, volume, baseUrl, options, htmlAttributes, embedName);
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}
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// should users really use Silverlight.js?
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// see: http://msdn.microsoft.com/en-us/library/cc838259(v=VS.95).aspx
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#if CODE_COVERAGE
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[ExcludeFromCodeCoverage]
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#endif
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[SuppressMessage("StyleCop.CSharp.NamingRules", "SA1305:FieldNamesMustNotUseHungarianNotation", Target = "bgColor",
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Justification = "This method is public and the parameter name cannot be changed")]
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public static HelperResult Silverlight(string path, string width, string height,
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string bgColor = null, string initParameters = null, string minimumVersion = null, bool autoUpgrade = true,
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object options = null, object htmlAttributes = null)
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{
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return Silverlight(HttpContext, _pathUtility, path, width, height, bgColor, initParameters, minimumVersion, autoUpgrade,
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options, htmlAttributes);
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}
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internal static HelperResult Flash(HttpContextBase context, VirtualPathUtilityBase pathUtility, string path,
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string width = null, string height = null, bool play = true, bool loop = true, bool menu = true,
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string backgroundColor = null, string quality = null, string scale = null, string windowMode = null,
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string baseUrl = null, string version = null, object options = null, object htmlAttributes = null, string embedName = null)
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{
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var parameters = ObjectToDictionary(options, "options", _flashBlacklist);
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if (!play)
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{
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parameters["play"] = false;
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}
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if (!loop)
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{
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parameters["loop"] = false;
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}
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if (!menu)
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{
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parameters["menu"] = false;
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}
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if (!String.IsNullOrEmpty(backgroundColor))
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{
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parameters["bgColor"] = backgroundColor;
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}
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if (!String.IsNullOrEmpty(quality))
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{
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parameters["quality"] = quality;
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}
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if (!String.IsNullOrEmpty(scale))
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{
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parameters["scale"] = scale;
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}
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if (!String.IsNullOrEmpty(windowMode))
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{
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parameters["wmode"] = windowMode;
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}
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if (!String.IsNullOrEmpty(baseUrl))
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{
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parameters["base"] = baseUrl;
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}
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string cab = FlashCab;
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if (!String.IsNullOrEmpty(version))
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{
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cab += "#version=" + version.Replace('.', ',');
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}
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return GetHtml(context, pathUtility, path, width, height,
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OleMimeType, null, FlashClassId, cab, "movie", FlashMimeType, parameters, htmlAttributes, embedName);
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}
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internal static HelperResult MediaPlayer(HttpContextBase context, VirtualPathUtilityBase pathUtility, string path, string width = null, string height = null,
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bool autoStart = true, int playCount = 1, string uiMode = null, bool stretchToFit = false,
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bool enableContextMenu = true, bool mute = false, int volume = -1, string baseUrl = null,
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object options = null, object htmlAttributes = null, string embedName = null)
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{
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var parameters = ObjectToDictionary(options, "options", _mediaPlayerBlacklist);
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if (!autoStart)
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{
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parameters["autoStart"] = false;
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}
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if (playCount != 1)
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{
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parameters["playCount"] = playCount;
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}
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if (!String.IsNullOrEmpty(uiMode))
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{
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parameters["uiMode"] = uiMode;
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}
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if (stretchToFit)
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{
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parameters["stretchToFit"] = true;
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}
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if (!enableContextMenu)
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{
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parameters["enableContextMenu"] = false;
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}
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if (mute)
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{
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parameters["mute"] = true;
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}
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if (volume >= 0)
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{
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parameters["volume"] = Math.Min(volume, 100);
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}
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if (!String.IsNullOrEmpty(baseUrl))
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{
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parameters["baseURL"] = baseUrl;
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}
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return GetHtml(context, pathUtility, path, width, height,
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null, null, MediaPlayerClassId, null, "URL", MediaPlayerMimeType, parameters, htmlAttributes, embedName);
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}
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internal static HelperResult Silverlight(HttpContextBase context, VirtualPathUtilityBase pathUtility, string path, string width, string height,
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string backgroundColor = null, string initParameters = null, string minimumVersion = null, bool autoUpgrade = true,
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object options = null, object htmlAttributes = null)
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{
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if (String.IsNullOrEmpty(width))
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{
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throw new ArgumentException(CommonResources.Argument_Cannot_Be_Null_Or_Empty, "width");
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}
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if (String.IsNullOrEmpty(height))
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{
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throw new ArgumentException(CommonResources.Argument_Cannot_Be_Null_Or_Empty, "height");
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}
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var parameters = ObjectToDictionary(options, "options", _silverlightBlacklist);
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if (!String.IsNullOrEmpty(backgroundColor))
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{
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parameters["background"] = backgroundColor;
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}
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if (!String.IsNullOrEmpty(initParameters))
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{
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parameters["initparams"] = initParameters;
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}
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if (!String.IsNullOrEmpty(minimumVersion))
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{
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parameters["minruntimeversion"] = minimumVersion;
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}
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if (!autoUpgrade)
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{
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parameters["autoUpgrade"] = autoUpgrade;
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}
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return GetHtml(context, pathUtility, path, width, height,
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SilverlightMimeType, "data:" + SilverlightMimeType + ",", // ',' required for Opera support
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null, null, "source", null, parameters, htmlAttributes, null,
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tw =>
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{
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tw.WriteLine("<a href=\"http://go.microsoft.com/fwlink/?LinkID=149156\" style=\"text-decoration:none\">");
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tw.WriteLine("<img src=\"http://go.microsoft.com/fwlink?LinkId=108181\" alt=\"Get Microsoft Silverlight\" style=\"border-style:none\"/>");
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tw.WriteLine("</a>");
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});
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}
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private static IDictionary<string, object> ObjectToDictionary(object o, string argName, string[] blackList)
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{
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var dictionary = new RouteValueDictionary(o);
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foreach (var key in dictionary.Keys)
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{
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if (blackList.Contains(key, StringComparer.OrdinalIgnoreCase))
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{
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throw new ArgumentException(String.Format(CultureInfo.CurrentUICulture,
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HelpersToolkitResources.Video_PropertyCannotBeSet, key), argName);
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}
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}
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return dictionary;
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}
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private static HelperResult GetHtml(HttpContextBase context, VirtualPathUtilityBase pathUtility,
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string path, string width, string height, string objectType, string objectDataType,
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string objectClassId, string objectCodeBase, string pathParamName, string embedContentType,
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IDictionary<string, object> parameters = null, object htmlAttributes = null, string embedName = null,
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Action<TextWriter> plugin = null)
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{
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path = ValidatePath(context, pathUtility, path);
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var objectAttr = ObjectToDictionary(htmlAttributes, "htmlAttributes", _globalBlacklist);
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objectAttr["width"] = width;
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objectAttr["height"] = height;
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objectAttr["type"] = objectType;
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objectAttr["data"] = objectDataType;
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objectAttr["classid"] = objectClassId;
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objectAttr["codebase"] = objectCodeBase;
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return new HelperResult(tw =>
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{
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tw.Write("<object ");
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foreach (var a in objectAttr.OrderBy(a => a.Key, StringComparer.OrdinalIgnoreCase))
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{
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var value = (a.Value == null) ? null : a.Value.ToString();
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WriteIfNotNullOrEmpty(tw, a.Key, value);
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}
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tw.WriteLine(">");
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// object parameters
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if (!String.IsNullOrEmpty(pathParamName))
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{
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tw.WriteLine("<param name=\"{0}\" value=\"{1}\" />",
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HttpUtility.HtmlAttributeEncode(pathParamName),
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HttpUtility.HtmlAttributeEncode(HttpUtility.UrlPathEncode(path)));
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}
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if (parameters != null)
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{
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foreach (var p in parameters)
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{
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tw.WriteLine("<param name=\"{0}\" value=\"{1}\" />",
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HttpUtility.HtmlAttributeEncode(p.Key),
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HttpUtility.HtmlAttributeEncode(p.Value.ToString()));
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}
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}
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if (!String.IsNullOrEmpty(embedContentType))
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{
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tw.Write("<embed src=\"{0}\" ", HttpUtility.HtmlAttributeEncode(HttpUtility.UrlPathEncode(path)));
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WriteIfNotNullOrEmpty(tw, "width", width);
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WriteIfNotNullOrEmpty(tw, "height", height);
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WriteIfNotNullOrEmpty(tw, "name", embedName);
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WriteIfNotNullOrEmpty(tw, "type", embedContentType);
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if (parameters != null)
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{
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foreach (var p in parameters)
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{
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tw.Write("{0}=\"{1}\" ", HttpUtility.HtmlEncode(p.Key), HttpUtility.HtmlAttributeEncode(p.Value.ToString()));
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}
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}
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tw.WriteLine("/>");
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}
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if (plugin != null)
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{
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plugin(tw);
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}
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tw.WriteLine("</object>");
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});
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}
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private static string ValidatePath(HttpContextBase context, VirtualPathUtilityBase pathUtility, string path)
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{
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if (String.IsNullOrEmpty(path))
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{
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throw new ArgumentException(CommonResources.Argument_Cannot_Be_Null_Or_Empty, "path");
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}
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string originalPath = path;
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if (!path.StartsWith("http", StringComparison.OrdinalIgnoreCase))
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{
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// resolve relative paths
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path = pathUtility.Combine(context.Request.AppRelativeCurrentExecutionFilePath, path);
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// resolve to app absolute - SL doesn't support app relative
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path = pathUtility.ToAbsolute(path);
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if (!File.Exists(context.Server.MapPath(path)))
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{
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throw new InvalidOperationException(String.Format(CultureInfo.CurrentUICulture,
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HelpersToolkitResources.Video_FileDoesNotExist, originalPath));
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}
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}
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return path;
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|
|
}
|
|||
|
|
|
|||
|
|
private static void WriteIfNotNullOrEmpty(TextWriter tw, string key, string value)
|
|||
|
|
{
|
|||
|
|
Debug.Assert(!String.IsNullOrEmpty(key));
|
|||
|
|
|
|||
|
|
if (!String.IsNullOrEmpty(value))
|
|||
|
|
{
|
|||
|
|
tw.Write("{0}=\"{1}\" ", HttpUtility.HtmlEncode(key), HttpUtility.HtmlAttributeEncode(value));
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|