/// <summary><inheritDoc/></summary>
public virtual bool IsValid(String objectString)
{
if (objectString == null)
{
return(false);
}
if (CssUtils.IsInitialOrInheritOrUnset(objectString))
{
return(true);
}
// Actually it's not shorthand but extractShorthandProperties method works exactly as needed in this case
IList <IList <String> > extractedProperties = CssUtils.ExtractShorthandProperties(objectString);
foreach (IList <String> propertyValues in extractedProperties)
{
if (propertyValues.IsEmpty() || propertyValues.Count > MAX_AMOUNT_OF_VALUES)
{
return(false);
}
for (int i = 0; i < propertyValues.Count; i++)
{
if (!IsValidProperty(propertyValues, i))
{
return(false);
}
}
}
return(true);
}
// With CSS3, you can apply multiple backgrounds to elements. These are layered atop one another
// with the first background you provide on top and the last background listed in the back. Only
// the last background can include a background color.
/* (non-Javadoc)
* @see com.itextpdf.styledxmlparser.css.resolve.shorthand.IShorthandResolver#resolveShorthand(java.lang.String)
*/
public virtual IList <CssDeclaration> ResolveShorthand(String shorthandExpression)
{
if (CssUtils.IsInitialOrInheritOrUnset(shorthandExpression))
{
return(JavaUtil.ArraysAsList(new CssDeclaration(CommonCssConstants.BACKGROUND_COLOR, shorthandExpression),
new CssDeclaration(CommonCssConstants.BACKGROUND_IMAGE, shorthandExpression), new CssDeclaration(CommonCssConstants
.BACKGROUND_POSITION, shorthandExpression), new CssDeclaration(CommonCssConstants.BACKGROUND_SIZE, shorthandExpression
), new CssDeclaration(CommonCssConstants.BACKGROUND_REPEAT, shorthandExpression), new CssDeclaration(CommonCssConstants
.BACKGROUND_ORIGIN, shorthandExpression), new CssDeclaration(CommonCssConstants.BACKGROUND_CLIP, shorthandExpression
), new CssDeclaration(CommonCssConstants.BACKGROUND_ATTACHMENT, shorthandExpression)));
}
if (String.IsNullOrEmpty(shorthandExpression.Trim()))
{
LOGGER.Error(MessageFormatUtil.Format(iText.StyledXmlParser.LogMessageConstant.SHORTHAND_PROPERTY_CANNOT_BE_EMPTY
, CommonCssConstants.BACKGROUND));
return(new List <CssDeclaration>());
}
IList <IList <String> > propsList = CssUtils.ExtractShorthandProperties(shorthandExpression);
IDictionary <CssBackgroundUtils.BackgroundPropertyType, String> resolvedProps = new Dictionary <CssBackgroundUtils.BackgroundPropertyType
, String>();
FillMapWithPropertiesTypes(resolvedProps);
foreach (IList <String> props in propsList)
{
if (!ProcessProperties(props, resolvedProps))
{
return(new List <CssDeclaration>());
}
}
if (resolvedProps.Get(CssBackgroundUtils.BackgroundPropertyType.BACKGROUND_COLOR) == null)
{
resolvedProps.Put(CssBackgroundUtils.BackgroundPropertyType.BACKGROUND_COLOR, CommonCssConstants.TRANSPARENT
);
}
if (!CheckProperties(resolvedProps))
{
return(new List <CssDeclaration>());
}
return(JavaUtil.ArraysAsList(new CssDeclaration(CssBackgroundUtils.GetBackgroundPropertyNameFromType(CssBackgroundUtils.BackgroundPropertyType
.BACKGROUND_COLOR), resolvedProps.Get(CssBackgroundUtils.BackgroundPropertyType.BACKGROUND_COLOR)), new
CssDeclaration(CssBackgroundUtils.GetBackgroundPropertyNameFromType(CssBackgroundUtils.BackgroundPropertyType
.BACKGROUND_IMAGE), resolvedProps.Get(CssBackgroundUtils.BackgroundPropertyType.BACKGROUND_IMAGE)), new
CssDeclaration(CssBackgroundUtils.GetBackgroundPropertyNameFromType(CssBackgroundUtils.BackgroundPropertyType
.BACKGROUND_POSITION), resolvedProps.Get(CssBackgroundUtils.BackgroundPropertyType.BACKGROUND_POSITION
)), new CssDeclaration(CssBackgroundUtils.GetBackgroundPropertyNameFromType(CssBackgroundUtils.BackgroundPropertyType
.BACKGROUND_SIZE), resolvedProps.Get(CssBackgroundUtils.BackgroundPropertyType.BACKGROUND_SIZE)), new
CssDeclaration(CssBackgroundUtils.GetBackgroundPropertyNameFromType(CssBackgroundUtils.BackgroundPropertyType
.BACKGROUND_REPEAT), resolvedProps.Get(CssBackgroundUtils.BackgroundPropertyType.BACKGROUND_REPEAT)),
new CssDeclaration(CssBackgroundUtils.GetBackgroundPropertyNameFromType(CssBackgroundUtils.BackgroundPropertyType
.BACKGROUND_ORIGIN), resolvedProps.Get(CssBackgroundUtils.BackgroundPropertyType.BACKGROUND_ORIGIN)),
new CssDeclaration(CssBackgroundUtils.GetBackgroundPropertyNameFromType(CssBackgroundUtils.BackgroundPropertyType
.BACKGROUND_CLIP), resolvedProps.Get(CssBackgroundUtils.BackgroundPropertyType.BACKGROUND_CLIP)), new
CssDeclaration(CssBackgroundUtils.GetBackgroundPropertyNameFromType(CssBackgroundUtils.BackgroundPropertyType
.BACKGROUND_ATTACHMENT), resolvedProps.Get(CssBackgroundUtils.BackgroundPropertyType.BACKGROUND_ATTACHMENT
))));
}
// With CSS3, you can apply multiple backgrounds to elements. These are layered atop one another
// with the first background you provide on top and the last background listed in the back. Only
// the last background can include a background color.
/* (non-Javadoc)
* @see com.itextpdf.styledxmlparser.css.resolve.shorthand.IShorthandResolver#resolveShorthand(java.lang.String)
*/
public virtual IList <CssDeclaration> ResolveShorthand(String shorthandExpression)
{
if (CommonCssConstants.INITIAL.Equals(shorthandExpression) || CommonCssConstants.INHERIT.Equals(shorthandExpression
))
{
return(JavaUtil.ArraysAsList(new CssDeclaration(CommonCssConstants.BACKGROUND_COLOR, shorthandExpression),
new CssDeclaration(CommonCssConstants.BACKGROUND_IMAGE, shorthandExpression), new CssDeclaration(CommonCssConstants
.BACKGROUND_POSITION, shorthandExpression), new CssDeclaration(CommonCssConstants.BACKGROUND_SIZE, shorthandExpression
), new CssDeclaration(CommonCssConstants.BACKGROUND_REPEAT, shorthandExpression), new CssDeclaration(CommonCssConstants
.BACKGROUND_ORIGIN, shorthandExpression), new CssDeclaration(CommonCssConstants.BACKGROUND_CLIP, shorthandExpression
), new CssDeclaration(CommonCssConstants.BACKGROUND_ATTACHMENT, shorthandExpression)));
}
// TODO: DEVSIX-2027 ignore multiple backgrounds at the moment (stop parsing after comma)
IList <String> props = CssUtils.ExtractShorthandProperties(shorthandExpression)[0];
String[] resolvedProps = new String[8];
bool slashEncountered = false;
foreach (String value in props)
{
int slashCharInd = value.IndexOf('/');
if (slashCharInd > 0 && !value.Contains("url("))
{
slashEncountered = true;
String value1 = value.JSubstring(0, slashCharInd);
String value2 = value.JSubstring(slashCharInd + 1, value.Length);
PutPropertyBasedOnType(ResolvePropertyType(value1), value1, resolvedProps, false);
PutPropertyBasedOnType(ResolvePropertyType(value2), value2, resolvedProps, true);
}
else
{
PutPropertyBasedOnType(ResolvePropertyType(value), value, resolvedProps, slashEncountered);
}
}
for (int i = 0; i < resolvedProps.Length; ++i)
{
if (resolvedProps[i] == null)
{
resolvedProps[i] = CommonCssConstants.INITIAL;
}
}
IList <CssDeclaration> cssDeclarations = JavaUtil.ArraysAsList(new CssDeclaration(CommonCssConstants.BACKGROUND_COLOR
, resolvedProps[BACKGROUND_COLOR_TYPE]), new CssDeclaration(CommonCssConstants.BACKGROUND_IMAGE, resolvedProps
[BACKGROUND_IMAGE_TYPE]), new CssDeclaration(CommonCssConstants.BACKGROUND_POSITION, resolvedProps[BACKGROUND_POSITION_TYPE
]), new CssDeclaration(CommonCssConstants.BACKGROUND_SIZE, resolvedProps[BACKGROUND_POSITION_OR_SIZE_TYPE
]), new CssDeclaration(CommonCssConstants.BACKGROUND_REPEAT, resolvedProps[BACKGROUND_REPEAT_TYPE]), new
CssDeclaration(CommonCssConstants.BACKGROUND_ORIGIN, resolvedProps[BACKGROUND_ORIGIN_OR_CLIP_TYPE]), new
CssDeclaration(CommonCssConstants.BACKGROUND_CLIP, resolvedProps[BACKGROUND_CLIP_TYPE]), new CssDeclaration
(CommonCssConstants.BACKGROUND_ATTACHMENT, resolvedProps[BACKGROUND_ATTACHMENT_TYPE]));
return(cssDeclarations);
}
/* (non-Javadoc)
* @see com.itextpdf.styledxmlparser.css.resolve.shorthand.IShorthandResolver#resolveShorthand(java.lang.String)
*/
public virtual IList <CssDeclaration> ResolveShorthand(String shorthandExpression)
{
if (CommonCssConstants.INITIAL.Equals(shorthandExpression) || CommonCssConstants.INHERIT.Equals(shorthandExpression
))
{
return(JavaUtil.ArraysAsList(new CssDeclaration(CommonCssConstants.LIST_STYLE_TYPE, shorthandExpression),
new CssDeclaration(CommonCssConstants.LIST_STYLE_POSITION, shorthandExpression), new CssDeclaration(CommonCssConstants
.LIST_STYLE_IMAGE, shorthandExpression)));
}
IList <String> props = CssUtils.ExtractShorthandProperties(shorthandExpression)[0];
String listStyleTypeValue = null;
String listStylePositionValue = null;
String listStyleImageValue = null;
foreach (String value in props)
{
if (value.Contains("url(") || CssGradientUtil.IsCssLinearGradientValue(value) || (CommonCssConstants.NONE.
Equals(value) && listStyleTypeValue != null))
{
listStyleImageValue = value;
}
else
{
if (LIST_STYLE_TYPE_VALUES.Contains(value))
{
listStyleTypeValue = value;
}
else
{
if (LIST_STYLE_POSITION_VALUES.Contains(value))
{
listStylePositionValue = value;
}
}
}
}
IList <CssDeclaration> resolvedDecl = new List <CssDeclaration>();
resolvedDecl.Add(new CssDeclaration(CommonCssConstants.LIST_STYLE_TYPE, listStyleTypeValue == null ? CommonCssConstants
.INITIAL : listStyleTypeValue));
resolvedDecl.Add(new CssDeclaration(CommonCssConstants.LIST_STYLE_POSITION, listStylePositionValue == null
? CommonCssConstants.INITIAL : listStylePositionValue));
resolvedDecl.Add(new CssDeclaration(CommonCssConstants.LIST_STYLE_IMAGE, listStyleImageValue == null ? CommonCssConstants
.INITIAL : listStyleImageValue));
return(resolvedDecl);
}
/// <summary><inheritDoc/></summary>
public virtual IList <CssDeclaration> ResolveShorthand(String shorthandExpression)
{
if (CssUtils.IsInitialOrInheritOrUnset(shorthandExpression))
{
return(JavaUtil.ArraysAsList(new CssDeclaration(CommonCssConstants.BACKGROUND_POSITION_X, shorthandExpression
), new CssDeclaration(CommonCssConstants.BACKGROUND_POSITION_Y, shorthandExpression)));
}
if (String.IsNullOrEmpty(shorthandExpression.Trim()))
{
LOGGER.Error(MessageFormatUtil.Format(iText.StyledXmlParser.LogMessageConstant.SHORTHAND_PROPERTY_CANNOT_BE_EMPTY
, CommonCssConstants.BACKGROUND_POSITION));
return(new List <CssDeclaration>());
}
IList <IList <String> > propsList = CssUtils.ExtractShorthandProperties(shorthandExpression);
IDictionary <String, String> resolvedProps = new Dictionary <String, String>();
IDictionary <String, String> values = new Dictionary <String, String>();
foreach (IList <String> props in propsList)
{
if (props.IsEmpty())
{
LOGGER.Error(MessageFormatUtil.Format(iText.StyledXmlParser.LogMessageConstant.SHORTHAND_PROPERTY_CANNOT_BE_EMPTY
, CommonCssConstants.BACKGROUND_POSITION));
return(new List <CssDeclaration>());
}
if (!ParsePositionShorthand(props, values))
{
LOGGER.Error(MessageFormatUtil.Format(iText.StyledXmlParser.LogMessageConstant.INVALID_CSS_PROPERTY_DECLARATION
, shorthandExpression));
return(new List <CssDeclaration>());
}
UpdateValue(resolvedProps, values, CommonCssConstants.BACKGROUND_POSITION_X);
UpdateValue(resolvedProps, values, CommonCssConstants.BACKGROUND_POSITION_Y);
values.Clear();
}
if (!CheckProperty(resolvedProps, CommonCssConstants.BACKGROUND_POSITION_X) || !CheckProperty(resolvedProps
, CommonCssConstants.BACKGROUND_POSITION_Y))
{
return(new List <CssDeclaration>());
}
return(JavaUtil.ArraysAsList(new CssDeclaration(CommonCssConstants.BACKGROUND_POSITION_X, resolvedProps.Get
(CommonCssConstants.BACKGROUND_POSITION_X)), new CssDeclaration(CommonCssConstants.BACKGROUND_POSITION_Y
, resolvedProps.Get(CommonCssConstants.BACKGROUND_POSITION_Y))));
}
/// <summary>Applies background to an element.</summary>
/// <param name="cssProps">the CSS properties</param>
/// <param name="context">the processor context</param>
/// <param name="element">the element</param>
public static void ApplyBackground(IDictionary <String, String> cssProps, ProcessorContext context, IPropertyContainer
element)
{
String backgroundColorStr = cssProps.Get(CssConstants.BACKGROUND_COLOR);
String backgroundImagesStr = cssProps.Get(CssConstants.BACKGROUND_IMAGE);
String backgroundRepeatStr = cssProps.Get(CssConstants.BACKGROUND_REPEAT);
String backgroundSizeStr = cssProps.Get(CssConstants.BACKGROUND_SIZE);
String backgroundPositionXStr = cssProps.Get(CssConstants.BACKGROUND_POSITION_X);
String backgroundPositionYStr = cssProps.Get(CssConstants.BACKGROUND_POSITION_Y);
String backgroundBlendModeStr = cssProps.Get(CssConstants.BACKGROUND_BLEND_MODE);
String backgroundClipStr = cssProps.Get(CssConstants.BACKGROUND_CLIP);
String backgroundOriginStr = cssProps.Get(CssConstants.BACKGROUND_ORIGIN);
IList <String> backgroundImagesArray = CssUtils.SplitStringWithComma(backgroundImagesStr);
IList <String> backgroundRepeatArray = CssUtils.SplitStringWithComma(backgroundRepeatStr);
IList <IList <String> > backgroundSizeArray = backgroundSizeStr == null ? null : CssUtils.ExtractShorthandProperties
(backgroundSizeStr);
IList <String> backgroundPositionXArray = CssUtils.SplitStringWithComma(backgroundPositionXStr);
IList <String> backgroundPositionYArray = CssUtils.SplitStringWithComma(backgroundPositionYStr);
IList <String> backgroundBlendModeArray = CssUtils.SplitStringWithComma(backgroundBlendModeStr);
String fontSize = cssProps.Get(CssConstants.FONT_SIZE);
float em = fontSize == null ? 0 : CssDimensionParsingUtils.ParseAbsoluteLength(fontSize);
float rem = context.GetCssContext().GetRootFontSize();
IList <String> backgroundClipArray = CssUtils.SplitStringWithComma(backgroundClipStr);
IList <String> backgroundOriginArray = CssUtils.SplitStringWithComma(backgroundOriginStr);
BackgroundBox clipForColor = GetBackgroundBoxProperty(backgroundClipArray, backgroundImagesArray.IsEmpty()
? 0 : (backgroundImagesArray.Count - 1), BackgroundBox.BORDER_BOX);
ApplyBackgroundColor(backgroundColorStr, element, clipForColor);
IList <BackgroundImage> backgroundImagesList = GetBackgroundImagesList(backgroundImagesArray, context, em,
rem, backgroundPositionXArray, backgroundPositionYArray, backgroundSizeArray, backgroundBlendModeArray
, backgroundRepeatArray, backgroundClipArray, backgroundOriginArray);
if (!backgroundImagesList.IsEmpty())
{
element.SetProperty(Property.BACKGROUND_IMAGE, backgroundImagesList);
}
}
