Beispiel #1
0
        private FormatContext ToHtmlGroup(Document doc, Group group, bool processRtf)
        {
            var tabCount = 0;

            if (group.Contents.Count > 1 &&
                group.Contents[0] is IgnoreUnrecognized &&
                (group.Contents[1].GetType().Name == "GenericTag" || group.Contents[1].GetType().Name == "GenericWord"))
            {
                return(null);
            }

            if (_inputStyle.Count > 0)
            {
                _inputStyle.Push(_inputStyle.Peek().Clone());
            }
            else
            {
                _inputStyle.Push(new FormatContext());
            }
            var currStyle = _inputStyle.Peek();

            if (group is Row)
            {
                if (group.Contents.OfType <RightCellBoundary>().Any())
                {
                    currStyle.RemoveWhere(t => t is CellToken);
                }
                currStyle.RemoveWhere(t => t is NestingLevel);
            }

            for (var i = 0; i < group.Contents.Count; i++)
            {
                var token = group.Contents[i];
                if (token is HtmlRtf htmlRtf)
                {
                    processRtf = !htmlRtf.Value;
                }
                else if (processRtf)
                {
                    if (token is RowDefaults && !(group is Row))
                    {
                        var table     = Table.Create(group.Contents, ref i);
                        var prevStyle = default(FormatContext);
                        foreach (var child in table.Contents.OfType <Group>())
                        {
                            var usePrevious = prevStyle != null && !child.Contents.OfType <RowDefaults>().Any();
                            if (usePrevious)
                            {
                                _inputStyle.Push(prevStyle);
                            }
                            prevStyle = ToHtmlGroup(doc, child, processRtf);
                            if (usePrevious)
                            {
                                _inputStyle.Pop();
                            }
                        }
                    }
                    else if (token.Type == TokenType.CellFormat)
                    {
                        var start = i;
                        while (i < group.Contents.Count && !(group.Contents[i] is RightCellBoundary))
                        {
                            i++;
                        }
                        var cell = new CellToken(group.Contents.Skip(start).Take(i - start + 1)
                                                 , group as Row
                                                 , currStyle.OfType <CellToken>().LastOrDefault());
                        currStyle.Add(cell);
                    }
                    else if (token is ControlWord <BorderPosition> borderSide)
                    {
                        var border = new BorderToken(borderSide);
                        i++;
                        while (i < group.Contents.Count && border.Add(group.Contents[i]))
                        {
                            i++;
                        }
                        i--;
                        currStyle.Add(border);
                    }
                    else if ((token.Type & TokenType.Format) == TokenType.Format)
                    {
                        currStyle.Add(token);
                    }
                    else if (token is Group childGroup)
                    {
                        var dest = childGroup.Destination;
                        if (dest is NumberingTextFallback ||
                            dest is ListTextFallback ||
                            dest?.Type == TokenType.HeaderTag ||
                            dest is NoNestedTables)
                        {
                            // skip
                        }
                        else if (dest is Header ||
                                 dest is HeaderEven ||
                                 dest is HeaderFirst ||
                                 dest is HeaderOdd ||
                                 dest is Footer ||
                                 dest is FooterFirst ||
                                 dest is FooterOdd)
                        {
                            // skip for now
                        }
                        else if (dest is FieldInstructions)
                        {
                            var instructions = childGroup.Contents
                                               .OfType <Group>().LastOrDefault(g => g.Destination == null && g.Contents.OfType <TextToken>().Any())
                                               ?.Contents.OfType <TextToken>().FirstOrDefault()?.Value?.Trim();
                            if (string.IsNullOrEmpty(instructions) &&
                                !childGroup.Contents.OfType <Group>().Any() &&
                                childGroup.Contents.Count == 3)
                            {
                                instructions = (childGroup.Contents[2] as TextToken)?.Value;
                            }

                            if (!string.IsNullOrEmpty(instructions))
                            {
                                var args = instructions.Split(' ');
                                if (args[0] == "HYPERLINK")
                                {
                                    currStyle.Add(new HyperlinkToken(args));
                                }
                            }
                        }
                        else if (dest is BookmarkStart)
                        {
                            currStyle.Add(new BookmarkToken()
                            {
                                Start = true,
                                Id    = childGroup.Contents.OfType <TextToken>().FirstOrDefault()?.Value
                            });
                        }
                        else if (dest is BookmarkEnd)
                        {
                            currStyle.Add(new BookmarkToken()
                            {
                                Start = false,
                                Id    = childGroup.Contents.OfType <TextToken>().FirstOrDefault()?.Value
                            });
                        }
                        else if (dest is PictureTag)
                        {
                            var pict  = new Picture(childGroup);
                            var style = FixStyles(doc, currStyle);
                            if (tabCount > 0)
                            {
                                _html.AddBreak(style, new Tab(), tabCount);
                            }
                            _html.AddPicture(style, pict);
                            tabCount = 0;
                        }
                        else if (dest is Footnote)
                        {
                            _footnotes.Add(childGroup);
                            var linkGroup = new Group();
                            _footnoteIdx++;
                            var title = string.Concat(childGroup.Contents
                                                      .Select(t =>
                            {
                                if (t is TextToken txt)
                                {
                                    return(txt.Value);
                                }
                                if (t.Type == TokenType.BreakTag)
                                {
                                    return(" ");
                                }
                                return("");
                            }).ToArray());
                            linkGroup.Contents.Add(new HyperlinkToken()
                            {
                                Url   = "#" + FootnoteId(_footnoteIdx),
                                Title = title
                            });
                            linkGroup.Contents.Add(new SuperStartToken());
                            linkGroup.Contents.Add(new TextToken()
                            {
                                Value = _footnoteIdx.ToString()
                            });
                            ToHtmlGroup(doc, linkGroup, true);
                        }
                        else if (childGroup.Contents.OfType <ParagraphNumbering>().Any())
                        {
                            foreach (var child in childGroup.Contents.Where(t => t.Type == TokenType.ParagraphFormat))
                            {
                                currStyle.Add(child);
                            }
                        }
                        else
                        {
                            if (childGroup is Table)
                            {
                                (_html as HtmlWriter)?.EnsureCell(currStyle);
                            }
                            ToHtmlGroup(doc, childGroup, processRtf);
                        }
                    }
                    else if (token is Tab)
                    {
                        tabCount++;
                    }
                    else if (token is TextToken text)
                    {
                        var style = FixStyles(doc, currStyle);
                        if (tabCount > 0)
                        {
                            _html.AddBreak(style, new Tab(), tabCount);
                        }
                        _html.AddText(style, text.Value);
                        tabCount = 0;
                    }
                    else if ((token.Type & TokenType.BreakTag) == TokenType.BreakTag)
                    {
                        AddBreak(doc, token, currStyle);
                        tabCount = 0;
                    }
                }
                else if (token is Group childGroup2)
                {
                    ToHtmlGroup(doc, childGroup2, processRtf);
                }
            }

            return(_inputStyle.Pop());
        }