Ejemplo n.º 1
0
        // .................................................................
        //
        // Processing CSS Attributes
        //
        // .................................................................

        internal static void GetElementPropertiesFromCssAttributes(XmlElement htmlElement, string elementName, CssStylesheet stylesheet, Hashtable localProperties, List<XmlElement> sourceContext)
        {
            string styleFromStylesheet = stylesheet.GetStyle(elementName, sourceContext);

            string styleInline = HtmlToXamlConverter.GetAttribute(htmlElement, "style");

            // Combine styles from stylesheet and from inline attribute.
            // The order is important - the latter styles will override the former.
            string style = styleFromStylesheet != null ? styleFromStylesheet : null;
            if (styleInline != null)
            {
                style = style == null ? styleInline : (style + ";" + styleInline);
            }

            // Apply local style to current formatting properties
            if (style != null)
            {
                string[] styleValues = style.Split(';');
                for (int i = 0; i < styleValues.Length; i++)
                {
                    string[] styleNameValue;

                    styleNameValue = styleValues[i].Split(':');
                    if (styleNameValue.Length == 2)
                    {
                        string styleName = styleNameValue[0].Trim().ToLower();
                        string styleValue = HtmlToXamlConverter.UnQuote(styleNameValue[1].Trim()).ToLower();
                        int nextIndex = 0;

                        switch (styleName)
                        {
                            case "font":
                                ParseCssFont(styleValue, localProperties);
                                break;
                            case "font-family":
                                ParseCssFontFamily(styleValue, ref nextIndex, localProperties);
                                break;
                            case "font-size":
                                ParseCssSize(styleValue, ref nextIndex, localProperties, "font-size", /*mustBeNonNegative:*/true);
                                break;
                            case "font-style":
                                ParseCssFontStyle(styleValue, ref nextIndex, localProperties);
                                break;
                            case "font-weight":
                                ParseCssFontWeight(styleValue, ref nextIndex, localProperties);
                                break;
                            case "font-variant":
                                ParseCssFontVariant(styleValue, ref nextIndex, localProperties);
                                break;
                            case "line-height":
                                ParseCssSize(styleValue, ref nextIndex, localProperties, "line-height", /*mustBeNonNegative:*/true);
                                break;
                            case "word-spacing":
                                //  Implement word-spacing conversion
                                break;
                            case "letter-spacing":
                                //  Implement letter-spacing conversion
                                break;
                            case "color":
                                ParseCssColor(styleValue, ref nextIndex, localProperties, "color");
                                break;

                            case "text-decoration":
                                ParseCssTextDecoration(styleValue, ref nextIndex, localProperties);
                                break;

                            case "text-transform":
                                ParseCssTextTransform(styleValue, ref nextIndex, localProperties);
                                break;

                            case "background-color":
                                ParseCssColor(styleValue, ref nextIndex, localProperties, "background-color");
                                break;
                            case "background":
                                // TODO: need to parse composite background property
                                ParseCssBackground(styleValue, ref nextIndex, localProperties);
                                break;

                            case "text-align":
                                ParseCssTextAlign(styleValue, ref nextIndex, localProperties);
                                break;
                            case "vertical-align":
                                ParseCssVerticalAlign(styleValue, ref nextIndex, localProperties);
                                break;
                            case "text-indent":
                                ParseCssSize(styleValue, ref nextIndex, localProperties, "text-indent", /*mustBeNonNegative:*/false);
                                break;

                            case "width":
                            case "height":
                                ParseCssSize(styleValue, ref nextIndex, localProperties, styleName, /*mustBeNonNegative:*/true);
                                break;

                            case "margin": // top/right/bottom/left
                                ParseCssRectangleProperty(styleValue, ref nextIndex, localProperties, styleName);
                                break;
                            case "margin-top":
                            case "margin-right":
                            case "margin-bottom":
                            case "margin-left":
                                ParseCssSize(styleValue, ref nextIndex, localProperties, styleName, /*mustBeNonNegative:*/true);
                                break;

                            case "padding":
                                ParseCssRectangleProperty(styleValue, ref nextIndex, localProperties, styleName);
                                break;
                            case "padding-top":
                            case "padding-right":
                            case "padding-bottom":
                            case "padding-left":
                                ParseCssSize(styleValue, ref nextIndex, localProperties, styleName, /*mustBeNonNegative:*/true);
                                break;

                            case "border":
                                ParseCssBorder(styleValue, ref nextIndex, localProperties);
                                break;
                            case "border-style":
                            case "border-width":
                            case "border-color":
                                ParseCssRectangleProperty(styleValue, ref nextIndex, localProperties, styleName);
                                break;
                            case "border-top":
                            case "border-right":
                            case "border-left":
                            case "border-bottom":
                                //  Parse css border style
                                break;

                            // NOTE: css names for elementary border styles have side indications in the middle (top/bottom/left/right)
                            // In our internal notation we intentionally put them at the end - to unify processing in ParseCssRectangleProperty method
                            case "border-top-style":
                            case "border-right-style":
                            case "border-left-style":
                            case "border-bottom-style":
                            case "border-top-color":
                            case "border-right-color":
                            case "border-left-color":
                            case "border-bottom-color":
                            case "border-top-width":
                            case "border-right-width":
                            case "border-left-width":
                            case "border-bottom-width":
                                //  Parse css border style
                                break;

                            case "display":
                                //  Implement display style conversion
                                break;

                            case "float":
                                ParseCssFloat(styleValue, ref nextIndex, localProperties);
                                break;
                            case "clear":
                                ParseCssClear(styleValue, ref nextIndex, localProperties);
                                break;

                            default:
                                break;
                        }
                    }
                }
            }
        }