/// <summary>
/// Init.
/// </summary>
/// <param name="parent">the parent box of this box</param>
/// <param name="tag">the html tag data of this box</param>
public CssBoxFrame(CssBox parent, HtmlTag tag)
: base(parent, tag)
{
_imageWord = new CssRectImage(this);
Words.Add(_imageWord);
Uri uri;
if (Uri.TryCreate(GetAttribute("src"), UriKind.Absolute, out uri))
{
if (uri.Host.IndexOf("youtube.com", StringComparison.InvariantCultureIgnoreCase) > -1)
{
_isVideo = true;
LoadYoutubeDataAsync(uri);
}
else if (uri.Host.IndexOf("vimeo.com", StringComparison.InvariantCultureIgnoreCase) > -1)
{
_isVideo = true;
LoadVimeoDataAsync(uri);
}
}
if (!_isVideo)
{
SetErrorBorder();
}
}
/// <summary>
///
/// </summary>
/// <param name="tag"></param>
/// <param name="box"></param>
private void TranslateAttributes(HtmlTag tag, CssBox box)
{
if (tag.HasAttributes())
{
foreach (string att in tag.Attributes.Keys)
{
string value = tag.Attributes[att];
switch (att)
{
case HtmlConstants.Align:
if (value == HtmlConstants.Left || value == HtmlConstants.Center || value == HtmlConstants.Right || value == HtmlConstants.Justify)
box.TextAlign = value.ToLower();
else
box.VerticalAlign = value.ToLower();
break;
case HtmlConstants.Background:
box.BackgroundImage = value.ToLower();
break;
case HtmlConstants.Bgcolor:
box.BackgroundColor = value.ToLower();
break;
case HtmlConstants.Border:
if (!string.IsNullOrEmpty(value) && value != "0")
box.BorderLeftStyle = box.BorderTopStyle = box.BorderRightStyle = box.BorderBottomStyle = CssConstants.Solid;
box.BorderLeftWidth = box.BorderTopWidth = box.BorderRightWidth = box.BorderBottomWidth = TranslateLength(value);
if (tag.Name == HtmlConstants.Table)
{
if (value != "0")
ApplyTableBorder(box, "1px");
}
else
{
box.BorderTopStyle = box.BorderLeftStyle = box.BorderRightStyle = box.BorderBottomStyle = CssConstants.Solid;
}
break;
case HtmlConstants.Bordercolor:
box.BorderLeftColor = box.BorderTopColor = box.BorderRightColor = box.BorderBottomColor = value.ToLower();
break;
case HtmlConstants.Cellspacing:
box.BorderSpacing = TranslateLength(value);
break;
case HtmlConstants.Cellpadding:
ApplyTablePadding(box, value);
break;
case HtmlConstants.Color:
box.Color = value.ToLower();
break;
case HtmlConstants.Dir:
box.Direction = value.ToLower();
break;
case HtmlConstants.Face:
box.FontFamily = _cssParser.ParseFontFamily(value);
break;
case HtmlConstants.Height:
box.Height = TranslateLength(value);
break;
case HtmlConstants.Hspace:
box.MarginRight = box.MarginLeft = TranslateLength(value);
break;
case HtmlConstants.Nowrap:
box.WhiteSpace = CssConstants.NoWrap;
break;
case HtmlConstants.Size:
if (tag.Name.Equals(HtmlConstants.Hr, StringComparison.OrdinalIgnoreCase))
box.Height = TranslateLength(value);
else if (tag.Name.Equals(HtmlConstants.Font, StringComparison.OrdinalIgnoreCase))
box.FontSize = value;
break;
case HtmlConstants.Valign:
box.VerticalAlign = value.ToLower();
break;
case HtmlConstants.Vspace:
box.MarginTop = box.MarginBottom = TranslateLength(value);
break;
case HtmlConstants.Width:
box.Width = TranslateLength(value);
break;
}
}
}
}
/// <summary>
/// Parse the html part, the part from prev parsing index to the beginning of the next html tag.<br/>
/// </summary>
/// <param name="source">the html source to parse</param>
/// <param name="tagIdx">the index of the next html tag</param>
/// <param name="curBox">the current box in html tree parsing</param>
/// <returns>the end of the parsed part, the new start index</returns>
private static int ParseHtmlTag(string source, int tagIdx, ref CssBox curBox)
{
var endIdx = source.IndexOf('>', tagIdx + 1);
if (endIdx > 0)
{
string tagName;
Dictionary<string, string> tagAttributes;
var length = endIdx - tagIdx + 1 - (source[endIdx - 1] == '/' ? 1 : 0);
if (ParseHtmlTag(source, tagIdx, length, out tagName, out tagAttributes))
{
if (!HtmlUtils.IsSingleTag(tagName) && curBox.ParentBox != null)
{
// need to find the parent tag to go one level up
curBox = DomUtils.FindParent(curBox.ParentBox, tagName, curBox);
}
}
else if (!string.IsNullOrEmpty(tagName))
{
//new SubString(source, lastEnd + 1, tagmatch.Index - lastEnd - 1)
var isSingle = HtmlUtils.IsSingleTag(tagName) || source[endIdx - 1] == '/';
var tag = new HtmlTag(tagName, isSingle, tagAttributes);
if (isSingle)
{
// the current box is not changed
CssBox.CreateBox(tag, curBox);
}
else
{
// go one level down, make the new box the current box
curBox = CssBox.CreateBox(tag, curBox);
}
}
else
{
endIdx = tagIdx + 1;
}
}
return endIdx;
}
/// <summary>
/// Init.
/// </summary>
/// <param name="parent">the parent box of this box</param>
/// <param name="tag">the html tag data of this box</param>
public CssBoxHr(CssBox parent, HtmlTag tag)
: base(parent, tag)
{
Display = CssConstants.Block;
}
/// <summary>
/// Init.
/// </summary>
/// <param name="parent">the parent box of this box</param>
/// <param name="tag">the html tag data of this box</param>
public CssBoxImage(CssBox parent, HtmlTag tag)
: base(parent, tag)
{
_imageWord = new CssRectImage(this);
Words.Add(_imageWord);
}
/// <summary>
/// Init.
/// </summary>
/// <param name="parentBox">optional: the parent of this css box in html</param>
/// <param name="tag">optional: the html tag associated with this css box</param>
public CssBox(CssBox parentBox, HtmlTag tag)
{
if (parentBox != null)
{
_parentBox = parentBox;
_parentBox.Boxes.Add(this);
}
_htmltag = tag;
}
/// <summary>
/// Create new css block box for the given parent with the given optional html tag and insert it either
/// at the end or before the given optional box.<br/>
/// If no html tag is given the box will be anonymous.<br/>
/// If no before box is given the new box will be added at the end of parent boxes collection.<br/>
/// If before box doesn't exists in parent box exception is thrown.<br/>
/// </summary>
/// <remarks>
/// To learn more about anonymous block boxes visit CSS spec:
/// http://www.w3.org/TR/CSS21/visuren.html#anonymous-block-level
/// </remarks>
/// <param name="parent">the box to add the new block box to it as child</param>
/// <param name="tag">optional: the html tag to define the box</param>
/// <param name="before">optional: to insert as specific location in parent box</param>
/// <returns>the new block box</returns>
public static CssBox CreateBlock(CssBox parent, HtmlTag tag = null, CssBox before = null)
{
ArgChecker.AssertArgNotNull(parent, "parent");
var newBox = CreateBox(parent, tag, before);
newBox.Display = CssConstants.Block;
return newBox;
}
/// <summary>
/// Create new css box for the given parent with the given optional html tag and insert it either
/// at the end or before the given optional box.<br/>
/// If no html tag is given the box will be anonymous.<br/>
/// If no before box is given the new box will be added at the end of parent boxes collection.<br/>
/// If before box doesn't exists in parent box exception is thrown.<br/>
/// </summary>
/// <remarks>
/// To learn more about anonymous inline boxes visit: http://www.w3.org/TR/CSS21/visuren.html#anonymous
/// </remarks>
/// <param name="parent">the box to add the new box to it as child</param>
/// <param name="tag">optional: the html tag to define the box</param>
/// <param name="before">optional: to insert as specific location in parent box</param>
/// <returns>the new box</returns>
public static CssBox CreateBox(CssBox parent, HtmlTag tag = null, CssBox before = null)
{
ArgChecker.AssertArgNotNull(parent, "parent");
var newBox = new CssBox(parent, tag);
newBox.InheritStyle();
if (before != null)
{
newBox.SetBeforeBox(before);
}
return newBox;
}
/// <summary>
/// Create new css box for the given parent with the given html tag.<br/>
/// </summary>
/// <param name="tag">the html tag to define the box</param>
/// <param name="parent">the box to add the new box to it as child</param>
/// <returns>the new box</returns>
public static CssBox CreateBox(HtmlTag tag, CssBox parent = null)
{
ArgChecker.AssertArgNotNull(tag, "tag");
if (tag.Name == HtmlConstants.Img)
{
return new CssBoxImage(parent, tag);
}
else if (tag.Name == HtmlConstants.Iframe)
{
return new CssBoxFrame(parent, tag);
}
else if (tag.Name == HtmlConstants.Hr)
{
return new CssBoxHr(parent, tag);
}
else
{
return new CssBox(parent, tag);
}
}
