Example #1
0
			public void HtmlTagCallback (HtmlTagContext ctx, HtmlWriter htmlWriter)
			{
				if (ctx.TagId != HtmlTagId.Image || ctx.IsEndTag) {
					ctx.WriteTag (htmlWriter, true);
					return;
				}

				// write the IMG tag, but don't write out the attributes.
				ctx.WriteTag (htmlWriter, false);

				// manually write the attributes so that we can replace the SRC attributes
				foreach (var attribute in ctx.Attributes) {
					if (attribute.Id == HtmlAttributeId.Src) {
						int index;
						Uri uri;

						// parse the <img src=...> attribute value into a Uri
						if (Uri.IsWellFormedUriString (attribute.Value, UriKind.Absolute))
							uri = new Uri (attribute.Value, UriKind.Absolute);
						else
							uri = new Uri (attribute.Value, UriKind.Relative);

						// locate the index of the attachment within the multipart/related (if it exists)
						if ((index = related.IndexOf (uri)) != -1) {
							var attachment = related[index] as MimePart;

							if (attachment == null) {
								// the body part is not a basic leaf part (IOW it's a multipart or message-part)
								htmlWriter.WriteAttribute (attribute);
								continue;
							}

							var data = GetDataUri (attachment);

							htmlWriter.WriteAttributeName (attribute.Name);
							htmlWriter.WriteAttributeValue (data);
						} else {
							htmlWriter.WriteAttribute (attribute);
						}
					}
				}
			}
Example #2
0
		static void DefaultHtmlTagCallback (HtmlTagContext tagContext, HtmlWriter htmlWriter)
		{
			tagContext.WriteTag (htmlWriter, true);
		}
        void HtmlTagCallback(HtmlTagContext ctx, HtmlWriter htmlWriter)
        {
            if (ctx.TagId == HtmlTagId.Image && !ctx.IsEndTag && _stack.Count > 0)
            {
                ctx.WriteTag(htmlWriter, false);

                // replace the src attribute with a file:// URL
                foreach (var attribute in ctx.Attributes)
                {
                    if (attribute.Id == HtmlAttributeId.Src)
                    {
                        MimePart image;

                        if (!TryGetImage(attribute.Value, out image))
                        {
                            htmlWriter.WriteAttribute(attribute);
                            continue;
                        }

                        var url = SaveImage(image, attribute.Value);

                        htmlWriter.WriteAttributeName(attribute.Name);
                        htmlWriter.WriteAttributeValue(url);
                    }
                    else
                        htmlWriter.WriteAttribute(attribute);
                }
            }
            else if (ctx.TagId == HtmlTagId.Body && !ctx.IsEndTag)
            {
                ctx.WriteTag(htmlWriter, false);

                // add and/or replace oncontextmenu="return false;"
                foreach (var attribute in ctx.Attributes)
                {
                    if (attribute.Name.ToLowerInvariant() == "oncontextmenu")
                        continue;

                    htmlWriter.WriteAttribute(attribute);
                }

                htmlWriter.WriteAttribute("oncontextmenu", "return false;");
            }
            else
            {
                // pass the tag through to the output
                ctx.WriteTag(htmlWriter, true);
            }
        }
Example #4
0
		void ReplaceUrlsWithFileNames (HtmlTagContext ctx, HtmlWriter htmlWriter)
		{
			if (ctx.TagId == HtmlTagId.Image) {
				htmlWriter.WriteEmptyElementTag (ctx.TagName);
				ctx.DeleteEndTag = true;

				for (int i = 0; i < ctx.Attributes.Count; i++) {
					var attr = ctx.Attributes[i];

					if (attr.Id == HtmlAttributeId.Src) {
						var fileName = Path.GetFileName (attr.Value);
						htmlWriter.WriteAttributeName (attr.Name);
						htmlWriter.WriteAttributeValue (fileName);
					} else {
						htmlWriter.WriteAttribute (attr);
					}
				}
			} else {
				ctx.WriteTag (htmlWriter, true);
			}
		}
Example #5
0
		void HtmlTagCallback (HtmlTagContext ctx, HtmlWriter htmlWriter)
		{
			if (ctx.TagId == HtmlTagId.Body && !ctx.IsEmptyElementTag) {
				if (ctx.IsEndTag) {
					// end our opening <blockquote>
					htmlWriter.WriteEndTag (HtmlTagId.BlockQuote);

					// pass the </body> tag through to the output
					ctx.WriteTag (htmlWriter, true);
				} else {
					// pass the <body> tag through to the output
					ctx.WriteTag (htmlWriter, true);

					// prepend the HTML reply with "On {DATE}, {SENDER} wrote:"
					htmlWriter.WriteStartTag (HtmlTagId.P);
					htmlWriter.WriteText (GetOnDateSenderWrote (message));
					htmlWriter.WriteEndTag (HtmlTagId.P);

					// Wrap the original content in a <blockquote>
					htmlWriter.WriteStartTag (HtmlTagId.BlockQuote);
					htmlWriter.WriteAttribute (HtmlAttributeId.Style, "border-left: 1px #ccc solid; margin: 0 0 0 .8ex; padding-left: 1ex;");

					ctx.InvokeCallbackForEndTag = true;
				}
			} else {
				// pass the tag through to the output
				ctx.WriteTag (htmlWriter, true);
			}
		}