private static void ParseParagraphText(MDSlide mdSlide, MDShapeText mdShape, string paragraphText)
{
if (paragraphText.Length > 0)
{
var line = paragraphText.ToString()
.Replace("``", "")
.Replace("*", "x")
.Replace("", "→");
if (mdShape.IsTitle)
{
mdSlide.Shapes.AddLast(new MDShapeText(string.Format("# {0}", line)));
}
else if (mdShape.IsSecTitle)
{
if (line == "Live Demo")
{
mdSlide.IsDemoSlide = true;
line = "[Demo]()";
var demoTitle = mdSlide.Shapes.Last.Value.ToString();
mdSlide.Shapes.RemoveLast();
mdSlide.Shapes.AddLast(new MDShapeText(string.Format("<!-- {0} -->", demoTitle)));
}
mdSlide.Shapes.AddLast(new MDShapeText(string.Format("## {0}", line)));
}
else if (mdShape.IsMultiCode)
{
if (!mdShape.AddedCodeOpen)
{
mdSlide.Shapes.AddLast(new MDShapeText(""));
mdSlide.Shapes.AddLast(new MDShapeText(string.Format("```{0}", Language)));
mdSlide.Shapes.AddLast(new MDShapeText(line));
mdShape.AddedCodeOpen = true;
}
else
{
mdSlide.Shapes.AddLast(new MDShapeText(line));
}
}
else if (mdShape.IsBalloon)
{
//mdSlide.Shapes.AddLast(new MDShapeText(string.Format(@"<div class=""fragment balloon"" style=""width:250px; top:60%; left:10%"">{0}</div>", line)));
//mdSlide.HasTags = true;
}
//else if (mdSlide.IsTitleSlide)
//{
// mdSlide.Signature.Add(line);
//}
else
{
mdSlide.Shapes.AddLast(new MDShapeText(string.Format("{0}- {1}", new string(' ', mdShape.IndentCount * 2), line)));
}
}
}
private static MDSlide AssignSlide(SlideType type)
{
MDSlide slide;
switch (type)
{
case SlideType.PresentationTitle:
slide = new MDSlidePresentationTitle();
break;
case SlideType.TableOfContents:
slide = new MDSlide();
slide.IsTitleSlide = true;
break;
case SlideType.SectionStart:
slide = new MDSlideSection();
break;
case SlideType.Demo:
slide = new MDSlideDemo();
break;
default:
slide = new MDSlide();
break;
}
return(slide);
}
public static void ExtractPPTXtoMD(string rootDir, string githubName, string language, string destinationDir = null)
{
gitHub = githubName;
lang = language;
IList <string> pptxFiles = GetAllPPTXFilesFrom(rootDir);
DirectoryInfo mdsDir = Directory.CreateDirectory(destinationDir ?? (rootDir + @"\.mds"));
for (int presentationIndex = 0; presentationIndex < pptxFiles.Count; presentationIndex++)
{
string filePath = pptxFiles[presentationIndex];
#region create sub-directorues
string lectureDirStr = GetLecturePath(filePath, rootDir);
DirectoryInfo lectureDir = mdsDir.CreateSubdirectory(lectureDirStr);
DirectoryInfo slidesDir = lectureDir;
var demosDir = lectureDir.GetDirectories().FirstOrDefault(x => x.Name.Equals("demos", StringComparison.CurrentCultureIgnoreCase));
var homeworkDir = lectureDir.GetDirectories().FirstOrDefault(x => x.Name.Equals("homework", StringComparison.CurrentCultureIgnoreCase));
if (demosDir == null)
{
demosDir = lectureDir.CreateSubdirectory("demos");
}
if (homeworkDir == null)
{
homeworkDir = lectureDir.CreateSubdirectory("homework");
}
imagesRootFolder = slidesDir.ToString();
#endregion
#region get and convert slide info
MDPresentation mdPresentation = new MDPresentation();
using (PresentationDocument presentationDocument = PresentationDocument.Open(filePath, false))
{
presentationImageIndex = 0;
IList <SlidePart> slideParts = GetSlideParts(presentationDocument);
for (int slideIndex = 0; slideIndex < slideParts.Count; slideIndex++)
{
MDSlide mdSlide = ParseSlidePart(slideParts, slideIndex);
mdPresentation.StartNewSection(mdSlide.IsTitleSlide);
mdPresentation.AddSlide(mdSlide);
}
}
#endregion
#region add all files
//AddTableOfContentsREADME(lectureDir);
AddLocalServerFiles(slidesDir);
File.WriteAllLines(slidesDir + @"\README.md", mdPresentation.ToStringArray());
Console.WriteLine("Added files for presentation:\n{0}\n", filePath.Substring(rootDir.Length));
#endregion
}
}
private static void ParseParagraphText(MDSlide mdSlide, MDShapeText mdShape, string paragraphText)
{
if (paragraphText.Length > 0)
{
var line = paragraphText.ToString()
.Replace("``", "")
.Replace("*", "x")
.Replace("", "→");
if (mdShape.IsTitle)
{
mdSlide.Shapes.AddLast(new MDShapeText(string.Format("# {0}", line)));
}
else if (mdShape.IsSecTitle)
{
if (line == "Live Demo")
{
mdSlide.IsDemoSlide = true;
line = "[Demo]()";
var demoTitle = mdSlide.Shapes.Last.Value.ToString();
mdSlide.Shapes.RemoveLast();
mdSlide.Shapes.AddLast(new MDShapeText(string.Format("<!-- {0} -->", demoTitle)));
}
mdSlide.Shapes.AddLast(new MDShapeText(string.Format("## {0}", line)));
}
else if (mdShape.IsMultiCode)
{
if (!mdShape.AddedCodeOpen)
{
mdSlide.Shapes.AddLast(new MDShapeText(""));
mdSlide.Shapes.AddLast(new MDShapeText(string.Format("```{0}", Language)));
mdSlide.Shapes.AddLast(new MDShapeText(line));
mdShape.AddedCodeOpen = true;
}
else
{
mdSlide.Shapes.AddLast(new MDShapeText(line));
}
}
else if (mdShape.IsBalloon)
{
//mdSlide.Shapes.AddLast(new MDShapeText(string.Format(@"<div class=""fragment balloon"" style=""width:250px; top:60%; left:10%"">{0}</div>", line)));
//mdSlide.HasTags = true;
}
//else if (mdSlide.IsTitleSlide)
//{
// mdSlide.Signature.Add(line);
//}
else
{
mdSlide.Shapes.AddLast(new MDShapeText(string.Format("{0}- {1}", new string(' ', mdShape.IndentCount * 2), line)));
}
}
}
private static MDSlide ParseSlidePart(IList <SlidePart> slideParts, int slideIndex)
{
var slidePart = slideParts[slideIndex];
if (slidePart == null)
{
throw new ArgumentNullException("slidePart");
}
if (slidePart.Slide == null)
{
throw new ArgumentNullException("slidePart.Slide");
}
SlideType slideType = GetSlideType(slidePart, slideIndex);
MDSlide slide = AssignSlide(slideType);
// Extract texts
var shapes = slidePart.Slide.Descendants <Shape>().Where(s => s.Descendants <Drawing.Paragraph>().Any());
foreach (Shape shape in shapes)
{
if (string.IsNullOrWhiteSpace(shape.InnerText))
{
continue;
}
slide.AddShapes(GetShapes(shape));
}
// Extract images
var pictures = slidePart.Slide.Descendants <Picture>().ToList();
foreach (var picture in pictures)
{
string rId = picture.BlipFill.Blip.Embed.Value;
ImagePart imagePart = (ImagePart)slidePart.Slide.SlidePart.GetPartById(rId);
Image image = Image.FromStream(imagePart.GetStream());
SaveImageToFile(image, slideIndex);
MDShapeImage mdImage = GetImage(slideIndex, image, picture);
presentationImageIndex++;
slide.AddShape(mdImage);
}
// Extract graphics
var graphics = slidePart.Slide.Descendants <GraphicFrame>().ToList();
foreach (var graphic in graphics)
{
// TODO: Find a way to export graphics as images
}
return(slide);
}
private static void CheckSlideType(Shape shape, MDSlide mdSlide, MDShapeText mdShape)
{
var placeholder = shape.Descendants <PlaceholderShape>().FirstOrDefault();
if (placeholder != null && placeholder.Type != null)
{
mdShape.IsTitle = placeholder.Type.Value == PlaceholderValues.Title || placeholder.Type.Value == PlaceholderValues.CenteredTitle;
mdShape.IsSecTitle = placeholder.Type.Value == PlaceholderValues.SubTitle;
mdSlide.IsNewSection |= placeholder.Type.Value == PlaceholderValues.CenteredTitle;
}
}
public static string[] GetAllTextInSlide(SlidePart slidePart, int slideNum)
{
if (slidePart == null)
{
throw new ArgumentNullException("slidePart");
}
if (slidePart.Slide == null)
{
throw new ArgumentNullException("slidePart.Slide");
}
var mdSlide = new MDSlide();
mdSlide.IsTitleSlide = slideNum == 0;
// mdSlide.HasImage = slidePart.Slide.Descendants<Picture>().Any();
foreach (var shape in slidePart.Slide.Descendants <Shape>())
{
var mdShape = new MDShapeText();
CheckSlideType(shape, mdSlide, mdShape);
CheckWrappingShape(shape, mdShape);
foreach (var paragraph in shape.Descendants <Drawing.Paragraph>())
{
string paragraphText = ExtractTextFromParagraph(mdShape, paragraph);
ParseParagraphText(mdSlide, mdShape, paragraphText);
}
if (mdShape.IsMultiCode && mdShape.AddedCodeOpen)
{
mdSlide.Shapes.AddLast(new MDShapeText("```"));
mdShape.IsMultiCode = false;
mdShape.AddedCodeOpen = false;
}
}
return(mdSlide.ToStringArray());
}
// open at your own risk
public static void ExtractWebPageToMD(string baseUrl, string[] pages, string githubName, string language, string destinationDir)
{
gitHub = githubName;
lang = language;
for (int i = 0; i < pages.Length; i++)
{
#region get and convert slide info
string page = pages[i];
string url = baseUrl + page + ".html";
string html = GetHTML(url).Result;
HtmlDocument htmlDoc = new HtmlDocument();
htmlDoc.LoadHtml(html);
var doc = htmlDoc.DocumentNode;
MDPresentation mdPresentation = new MDPresentation();
var headings = doc.SelectNodes("//h1");
IMDShape shape = null;
int slideLength = 0;
for (int j = 0; j < headings.Count; j++)
{
var heading = headings[j];
mdPresentation.StartNewSection(true);
IMDSlide slide;
if (mdPresentation.Sections.Count == 1 && mdPresentation.Sections.First().Slides.Count == 0)
{
slide = new MDSlidePresentationTitle();
slide.AddShape(new MDShapeTitle(heading.InnerText));
slide.AddShape(new MDShapeText("TypeScript OOP", 0));
slide.AddShape(new MDShapeText("Telerik Software Academy", 0));
slide.AddShape(new MDShapeText("http://academy.telerik.com", 0));
mdPresentation.AddSlide(slide);
slide = new MDSlide();
slide.AddShape(new MDShapeTitle("Table of Contents"));
for (int k = 1; k < headings.Count; k++)
{
if (k != 0 && k % 10 == 0)
{
mdPresentation.AddSlide(slide);
slide = new MDSlide();
slide.AddShape(new MDShapeTitle("Table of Contents"));
}
slide.AddShape(new MDShapeText(string.Format("[{0}](#{1})", headings[k].InnerText, headings[k].InnerText.ToLower().Replace(' ', '-')), 0));
}
mdPresentation.AddSlide(slide);
}
else if (mdPresentation.Sections.Count > 1 && mdPresentation.Sections.Last().Slides.Count == 0)
{
slide = new MDSlideSection();
slide.AddShape(new MDShapeTitle(heading.InnerText));
slide.CssId = headings[j].InnerText.ToLower().Replace(' ', '-');
mdPresentation.AddSlide(slide);
slide = new MDSlide();
}
else
{
slide = new MDSlide();
slide.AddShape(new MDShapeTitle(heading.InnerText));
}
slide = new MDSlide();
slide.AddShape(new MDShapeTitle(heading.InnerText));
slideLength = 0;
var tag = heading;
while (tag.NextSibling != null && tag.NextSibling.Name != "h1")
{
// start new slide if current is too long
if (slideLength > 350)
{
mdPresentation.AddSlide(slide);
slide = new MDSlide();
slide.AddShape(new MDShapeTitle(heading.InnerText, false, true));
slideLength = 0;
}
tag = tag.NextSibling;
if (tag.Name == "p")
{
shape = new MDShapeText(tag.InnerText, 0);
}
else if (tag.Name == "pre")
{
shape = new MDShapeMultiCode(lang);
shape.AddLine(tag.InnerText, 0);
}
slideLength += tag.InnerText.Length;
slide.AddShape(shape);
}
mdPresentation.AddSlide(slide);
}
mdPresentation.StartNewSection(true);
mdPresentation.AddSlide(new MDSlideQuestions(headings[0].InnerText));
#endregion
#region create sub-directorues
DirectoryInfo mdsDir = Directory.CreateDirectory(destinationDir);
string lectureSubDir = page.ToLower().Replace(' ', '-');
DirectoryInfo lectureDir = mdsDir.CreateSubdirectory(string.Format("{0:d2}. {1}", i + 1, lectureSubDir));
DirectoryInfo slidesDir = lectureDir;
var demosDir = lectureDir.GetDirectories().FirstOrDefault(x => x.Name.Equals("demos", StringComparison.CurrentCultureIgnoreCase));
var homeworkDir = lectureDir.GetDirectories().FirstOrDefault(x => x.Name.Equals("homework", StringComparison.CurrentCultureIgnoreCase));
if (demosDir == null)
{
demosDir = lectureDir.CreateSubdirectory("demos");
}
if (homeworkDir == null)
{
homeworkDir = lectureDir.CreateSubdirectory("homework");
}
#endregion
#region add all files
//AddTableOfContentsREADME(lectureDir);
AddLocalServerFiles(slidesDir);
File.WriteAllLines(slidesDir + @"\README.md", mdPresentation.ToStringArray());
Console.WriteLine("Added files for presentation:\n{0}\n", page);
#endregion
}
}
public static string[] GetAllTextInSlide(SlidePart slidePart, int slideNum)
{
if (slidePart == null) { throw new ArgumentNullException("slidePart"); }
if (slidePart.Slide == null) { throw new ArgumentNullException("slidePart.Slide"); }
var mdSlide = new MDSlide();
mdSlide.IsTitleSlide = slideNum == 0;
// mdSlide.HasImage = slidePart.Slide.Descendants<Picture>().Any();
foreach (var shape in slidePart.Slide.Descendants<Shape>())
{
var mdShape = new MDShapeText();
CheckSlideType(shape, mdSlide, mdShape);
CheckWrappingShape(shape, mdShape);
foreach (var paragraph in shape.Descendants<Drawing.Paragraph>())
{
string paragraphText = ExtractTextFromParagraph(mdShape, paragraph);
ParseParagraphText(mdSlide, mdShape, paragraphText);
}
if (mdShape.IsMultiCode && mdShape.AddedCodeOpen)
{
mdSlide.Shapes.AddLast(new MDShapeText("```"));
mdShape.IsMultiCode = false;
mdShape.AddedCodeOpen = false;
}
}
return mdSlide.ToStringArray();
}
private static void CheckSlideType(Shape shape, MDSlide mdSlide, MDShapeText mdShape)
{
var placeholder = shape.Descendants<PlaceholderShape>().FirstOrDefault();
if (placeholder != null && placeholder.Type != null)
{
mdShape.IsTitle = placeholder.Type.Value == PlaceholderValues.Title || placeholder.Type.Value == PlaceholderValues.CenteredTitle;
mdShape.IsSecTitle = placeholder.Type.Value == PlaceholderValues.SubTitle;
mdSlide.IsNewSection |= placeholder.Type.Value == PlaceholderValues.CenteredTitle;
}
}
