Merge with develop

--HG--
branch : compatibility-develop

code/nel/include/nel/gui/css_parser.h

@@ -0,0 +1,150 @@
+// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
+// Copyright (C) 2010  Winch Gate Property Limited
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#ifndef CL_CSS_PARSER_H
+#define CL_CSS_PARSER_H
+
+#include "nel/misc/types_nl.h"
+#include "nel/gui/css_style.h"
+#include "nel/gui/css_selector.h"
+
+namespace NLGUI
+{
+	/**
+	 * \brief CSS style parsing
+	 * \date 2019-03-15 10:50 GMT
+	 * \author Meelis Mägi (Nimetu)
+	 */
+	class CCssParser {
+	public:
+		// parse style declaration, eg "color: red; font-size: 10px;"
+		static TStyle parseDecls(const std::string &styleString);
+
+		// parse css stylesheet
+		void parseStylesheet(const std::string &cssString, std::vector<CCssStyle::SStyleRule> &rules);
+
+	private:
+		// stylesheet currently parsed
+		ucstring _Style;
+		// keep track of current position in _Style
+		size_t _Position;
+
+		std::vector<CCssStyle::SStyleRule> _Rules;
+
+	private:
+		// @media ( .. ) { .. }
+		void readAtRule();
+
+		// a#id.class[attr=val] { .. }
+		void readRule();
+
+		// move past whitespace
+		void skipWhitespace();
+
+		// skip valid IDENT
+		bool skipIdentifier();
+
+		// skip over {}, (), or [] block
+		void skipBlock();
+
+		// skip over string quoted with ' or "
+		void skipString();
+
+		// backslash escape
+		void escape();
+
+		// normalize newline chars and remove comments
+		void preprocess();
+
+		// parse selectors + combinators
+		std::vector<CCssSelector> parse_selector(const ucstring &sel, std::string &pseudoElement) const;
+
+		// parse selector and style
+		void parseRule(const ucstring &selectorString, const ucstring &styleString);
+
+		inline bool is_eof() const
+		{
+			return _Position >= _Style.size();
+		}
+
+		inline bool is_whitespace(ucchar ch) const
+		{
+			return (ch == (ucchar)' ' || ch == (ucchar)'\t' || ch == (ucchar)'\n');
+		}
+
+		inline bool is_hex(ucchar ch) const
+		{
+			return ((ch >= (ucchar)'0' && ch <= (ucchar)'9') ||
+					(ch >= (ucchar)'a' && ch <= (ucchar)'f') ||
+					(ch >= (ucchar)'A' && ch <= (ucchar)'F'));
+		}
+
+		inline bool maybe_escape() const
+		{
+			// escaping newline (\n) only allowed inside strings
+			return (_Style.size() - _Position) >= 1 && _Style[_Position] == (ucchar)'\\' && _Style[_Position+1] != '\n';
+		}
+
+		inline bool is_quote(ucchar ch) const
+		{
+			return	ch== (ucchar)'"' || ch == (ucchar)'\'';
+		}
+
+		inline bool is_block_open(ucchar ch) const
+		{
+			return	ch == (ucchar)'{' || ch == (ucchar)'[' || ch == (ucchar)'(';
+		}
+
+		inline bool is_block_close(ucchar ch, ucchar open) const
+		{
+			return ((open == '{' && ch == (ucchar)'}') ||
+					(open == '[' && ch == (ucchar)']') ||
+					(open == '(' && ch == (ucchar)')'));
+		}
+
+		inline bool is_comment_open() const
+		{
+			if (_Position+1 > _Style.size())
+				return false;
+
+			return _Style[_Position] == (ucchar)'/' && _Style[_Position+1] == (ucchar)'*';
+		}
+
+		inline bool is_nonascii(ucchar ch) const
+		{
+			return ch >= 0x80 /*&&  ch <= 255*/;
+		}
+
+		inline bool is_alpha(ucchar ch) const
+		{
+			return (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z');
+		}
+
+		inline bool is_digit(ucchar ch) const
+		{
+			return ch >= '0' && ch <= '9';
+		}
+
+		inline bool is_nmchar(ucchar ch) const
+		{
+			// checking escape here does not check if next char is '\n' or not
+			return ch == '_' || ch == '-' || is_alpha(ch) || is_digit(ch) || is_nonascii(ch) || ch == '\\'/*is_escape(ch)*/;
+		}
+	};
+}//namespace
+
+#endif // CL_CSS_PARSER_H
+

code/nel/include/nel/gui/css_selector.h

@@ -0,0 +1,107 @@
+// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
+// Copyright (C) 2010  Winch Gate Property Limited
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#ifndef CL_CSS_SELECTOR_H
+#define CL_CSS_SELECTOR_H
+
+#include "nel/misc/types_nl.h"
+
+namespace NLGUI
+{
+	class CHtmlElement;
+
+	/**
+	 * \brief CSS selector
+	 * \date 2019-03-15 10:50 GMT
+	 * \author Meelis Mägi (Nimetu)
+	 */
+	class CCssSelector
+	{
+	public:
+		enum ECombinator {
+			NONE = 0,
+			GENERAL_CHILD,
+			ADJACENT_SIBLING,
+			GENERAL_SIBLING,
+			CHILD_OF
+		};
+
+		struct SAttribute {
+			std::string key;
+			std::string value;
+			char op; // =, ~, |, ^, $, *
+			SAttribute(const std::string &k, const std::string &v, char o)
+				:key(k),value(v),op(o)
+			{}
+		};
+
+		std::string Element;
+		std::string Id;
+		std::vector<std::string> Class;
+		std::vector<SAttribute> Attr;
+		std::vector<std::string> PseudoClass;
+
+		// css combinator or \0 missing (first element)
+		char Combinator;
+
+	public:
+		// TODO: rewrite for ECombinator enum
+		CCssSelector(std::string elm="", std::string id="", std::string cls="", char comb = '\0');
+
+		// helper for sorting
+		uint32 specificity() const;
+
+		// set classes used, eg 'class1 class2'
+		void setClass(const std::string &cls);
+
+		// add attribute to selector
+		// ' ' op means 'key exists, ignore value'
+		void addAttribute(const std::string &key, const std::string &val = "", char op = ' ');
+
+		// add pseudo class to selector, eg 'first-child'
+		void addPseudoClass(const std::string &key);
+
+		// true if no rules have been defined
+		bool empty() const
+		{
+			return Element.empty() && Id.empty() && Class.empty() && Attr.empty() && PseudoClass.empty();
+		}
+
+		// Test current selector to html DOM element
+		// NOTE: Does not check combinator
+		bool match(const CHtmlElement &elm) const;
+
+	private:
+		bool matchClass(const CHtmlElement &elm) const;
+		bool matchAttributes(const CHtmlElement &elm) const;
+		bool matchPseudoClass(const CHtmlElement &elm) const;
+
+		// match An+B rule to child index (1 based)
+		bool matchNth(sint childNr, sint a, sint b) const;
+		
+		// parse nth-child string to 'a' and 'b' components
+		// :nth-child(odd)
+		// :nth-child(even)
+		// :nth-child(An+B)
+		// :nth-child(-An+b)
+		void parseNth(const std::string &pseudo, sint &a, sint &b) const;
+
+	};
+
+}//namespace
+
+#endif // CL_CSS_SELECTOR_H
+

code/nel/include/nel/gui/css_style.h

@@ -0,0 +1,221 @@
+// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
+// Copyright (C) 2010  Winch Gate Property Limited
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#ifndef CL_CSS_STYLE_H
+#define CL_CSS_STYLE_H
+
+#include "nel/misc/types_nl.h"
+#include "nel/misc/rgba.h"
+#include "nel/gui/css_selector.h"
+
+namespace NLGUI
+{
+	class CHtmlElement;
+
+	typedef std::map<std::string, std::string> TStyle;
+
+	/**
+	 * \brief CSS style rules
+	 * \date 2019-03-15 10:50 GMT
+	 * \author Meelis Mägi (Nimetu)
+	 */
+	class CStyleParams
+	{
+	public:
+		struct STextShadow
+		{
+		public:
+			STextShadow(bool enabled = false, bool outline = false, sint32 x=1, sint32 y=1, NLMISC::CRGBA color=NLMISC::CRGBA::Black)
+				: Enabled(enabled), Outline(outline), X(x), Y(y), Color(color)
+			{ }
+
+			bool Enabled;
+			bool Outline;
+			sint32 X;
+			sint32 Y;
+			NLMISC::CRGBA Color;
+		};		
+	public:
+		CStyleParams () : FontFamily(""), TextColor(255,255,255,255), TextShadow()
+		{
+			FontSize=10;
+			FontWeight=400;
+			FontOblique=false;
+			Underlined=false;
+			StrikeThrough=false;
+			GlobalColor=false;
+			Width=-1;
+			Height=-1;
+			MaxWidth=-1;
+			MaxHeight=-1;
+			BorderWidth=1;
+			BackgroundColor=NLMISC::CRGBA::Black;
+			BackgroundColorOver=NLMISC::CRGBA::Black;
+		}
+
+		bool hasStyle(const std::string &key) const
+		{
+			return StyleRules.find(key) != StyleRules.end();
+		}
+
+		std::string getStyle(const std::string &key) const
+		{
+			TStyle::const_iterator it = StyleRules.find(key);
+			return (it != StyleRules.end() ? it->second : "");
+		}
+
+	public:
+		uint FontSize;
+		uint FontWeight;
+		bool FontOblique;
+		std::string FontFamily;
+		NLMISC::CRGBA TextColor;
+		STextShadow TextShadow;
+		bool GlobalColor;
+		bool Underlined;
+		bool StrikeThrough;
+		sint32 Width;
+		sint32 Height;
+		sint32 MaxWidth;
+		sint32 MaxHeight;
+		sint32 BorderWidth;
+		NLMISC::CRGBA BackgroundColor;
+		NLMISC::CRGBA BackgroundColorOver;
+
+		std::string WhiteSpace;
+		std::string TextAlign;
+		std::string VerticalAlign;
+
+		TStyle StyleRules;
+	};
+
+	class CCssStyle {
+	public:
+		struct SStyleRule {
+			std::vector<CCssSelector> Selector;
+			TStyle Properties;
+
+			// pseudo element like ':before'
+			std::string PseudoElement;
+			
+			// returns selector specificity
+			uint specificity() const;
+		};
+
+		// 'browser' style, overwriten with '<html>'
+		CStyleParams Root;
+
+		// current element style
+		CStyleParams Current;
+
+		// known style rules sorted by specificity
+		std::vector<SStyleRule> _StyleRules;
+
+	private:
+		std::vector<CStyleParams> _StyleStack;
+
+		// test if str is one of "thin/medium/thick" and return its pixel value
+		bool scanCssLength(const std::string& str, uint32 &px) const;
+
+		// read style attribute
+		void getStyleParams(const std::string &styleString, CStyleParams &style, const CStyleParams &current) const;
+		void getStyleParams(const TStyle &styleRules, CStyleParams &style, const CStyleParams &current) const;
+
+		// merge src into dest by overwriting key in dest
+		void merge(TStyle &dst, const TStyle &src) const;
+
+		// match selector to dom path
+		bool match(const std::vector<CCssSelector> &selector, const CHtmlElement &elm) const;
+
+		// parse 'background' into 'background-color', 'background-image', etc
+		void parseBackgroundShorthand(const std::string &value, CStyleParams &style) const;
+
+	public:
+		void reset();
+
+		// parse <style>..</style> tag or css file content
+		void parseStylesheet(const std::string &styleString);
+
+		// set element style from matching css rules
+		void getStyleFor(CHtmlElement &elm) const;
+
+		inline uint getFontSizeSmaller() const
+		{
+			if (Current.FontSize < 5)
+				return 3;
+			return Current.FontSize-2;
+		}
+
+		sint styleStackIndex = 0;
+
+		inline void pushStyle()
+		{
+			styleStackIndex++;
+			_StyleStack.push_back(Current);
+
+			Current.Width=-1;
+			Current.Height=-1;
+			Current.MaxWidth=-1;
+			Current.MaxHeight=-1;
+			Current.BorderWidth=1;
+			
+			Current.StyleRules.clear();
+		}
+
+		inline void popStyle()
+		{
+			styleStackIndex--;
+			if (_StyleStack.empty())
+			{
+				Current = Root;
+			}
+			else
+			{
+				Current = _StyleStack.back();
+				_StyleStack.pop_back();
+			}
+		}
+
+		// apply style to this.Root
+		void applyRootStyle(const std::string &styleString);
+		void applyRootStyle(const TStyle &styleRules);
+
+		// apply style to this.Current
+		void applyStyle(const std::string &styleString);
+		void applyStyle(const TStyle &styleRules);
+
+		void applyCssMinMax(sint32 &width, sint32 &height, sint32 minw=0, sint32 minh=0, sint32 maxw=0, sint32 maxh=0) const;
+
+		// check if current style property matches value
+		bool checkStyle(const std::string &key, const std::string &val) const
+		{
+			return Current.hasStyle(key) && Current.getStyle(key) == val;
+		}
+
+		bool hasStyle(const std::string &key) const
+		{
+			return Current.hasStyle(key);
+		}
+
+		std::string getStyle(const std::string &key) const
+		{
+			return Current.getStyle(key);
+		}
+	};
+}//namespace
+
+#endif // CL_CSS_STYLE_H
+

code/nel/include/nel/gui/group_html.h

@@ -24,12 +24,12 @@
 #include "nel/gui/ctrl_button.h"
 #include "nel/gui/group_table.h"
 #include "nel/gui/libwww_types.h"
+#include "nel/gui/html_element.h"
+#include "nel/gui/css_style.h"
 
 // forward declaration
 typedef void CURLM;
 
-typedef std::map<std::string, std::string>	TStyle;
-
 namespace NLGUI
 {
 	class CCtrlButton;
@@ -76,60 +76,8 @@ namespace NLGUI
 
 		static SWebOptions options;
 
-		// text-shadow
-		struct STextShadow
-		{
-		public:
-			STextShadow(bool enabled = false, bool outline = false, sint32 x=1, sint32 y=1, NLMISC::CRGBA color=NLMISC::CRGBA::Black)
-				: Enabled(enabled), Outline(outline), X(x), Y(y), Color(color)
-			{ }
-
-			bool Enabled;
-			bool Outline;
-			sint32 X;
-			sint32 Y;
-			NLMISC::CRGBA Color;
-		};
-
-		class CStyleParams
-		{
-		public:
-			CStyleParams () : FontFamily(""), TextColor(255,255,255,255), TextShadow()
-			{
-				FontSize=10;
-				FontWeight=400;
-				FontOblique=false;
-				Underlined=false;
-				StrikeThrough=false;
-				GlobalColor=false;
-				Width=-1;
-				Height=-1;
-				MaxWidth=-1;
-				MaxHeight=-1;
-				BorderWidth=1;
-				BackgroundColor=NLMISC::CRGBA::Black;
-				BackgroundColorOver=NLMISC::CRGBA::Black;
-			}
-			uint FontSize;
-			uint FontWeight;
-			bool FontOblique;
-			std::string FontFamily;
-			NLMISC::CRGBA TextColor;
-			STextShadow TextShadow;
-			bool GlobalColor;
-			bool Underlined;
-			bool StrikeThrough;
-			sint32 Width;
-			sint32 Height;
-			sint32 MaxWidth;
-			sint32 MaxHeight;
-			sint32 BorderWidth;
-			NLMISC::CRGBA BackgroundColor;
-			NLMISC::CRGBA BackgroundColorOver;
-		};
-
 		// ImageDownload system
-		enum TDataType {ImgType= 0, BnpType};
+		enum TDataType {ImgType= 0, BnpType, StylesheetType};
 		enum TImageType {NormalImage=0, OverImage};
 
 		// Constructor
@@ -150,8 +98,11 @@ namespace NLGUI
 		// Browse
 		virtual void browse (const char *url);
 
+		// load css from local file and insert into active stylesheet collection
+		void parseStylesheetFile(const std::string &fname);
+
 		// parse html string using libxml2 parser
-		virtual bool parseHtml(std::string htmlString);
+		bool parseHtml(const std::string &htmlString);
 
 		// Refresh
 		void refresh();
@@ -162,13 +113,8 @@ namespace NLGUI
 		// Browse error
 		void browseError (const char *msg);
 
-		// stop browse
-		void stopBrowse ();
-
 		bool isBrowsing();
 
-		void clean() { stopBrowse(); updateRefreshButton(); removeContent(); }
-
 		// Update coords
 		void updateCoords();
 
@@ -293,8 +239,6 @@ namespace NLGUI
 		int luaInsertText(CLuaState &ls);
 		int luaAddString(CLuaState &ls);
 		int luaAddImage(CLuaState &ls);
-		int luaBeginElement(CLuaState &ls);
-		int luaEndElement(CLuaState &ls);
 		int luaShowDiv(CLuaState &ls);
 		int luaParseHtml(CLuaState &ls);
 		int luaRenderHtml(CLuaState &ls);
@@ -309,8 +253,6 @@ namespace NLGUI
 			REFLECT_LUA_METHOD("insertText", luaInsertText)
 			REFLECT_LUA_METHOD("addString", luaAddString)
 			REFLECT_LUA_METHOD("addImage", luaAddImage)
-			REFLECT_LUA_METHOD("beginElement", luaBeginElement)
-			REFLECT_LUA_METHOD("endElement", luaEndElement)
 			REFLECT_LUA_METHOD("showDiv", luaShowDiv)
 			REFLECT_LUA_METHOD("parseHtml", luaParseHtml)
 			REFLECT_LUA_METHOD("renderHtml", luaRenderHtml)
@@ -326,26 +268,20 @@ namespace NLGUI
 
 		// \name callback from libwww
 
-		// Begin of the parsing of a HTML document
+		// Begin of the rendering of a HTML document
 		virtual void beginBuild ();
 
-		// End of the parsing of a HTML document
+		// End of the rendering of a HTML document
 		virtual void endBuild ();
 
 		// A new text block has been parsed
 		virtual void addText (const char * buf, int len);
 
 		// A new begin HTML element has been parsed (<IMG> for exemple)
-		virtual void beginElement (uint element_number, const std::vector<bool> &present, const std::vector<const char *> &value);
+		virtual void beginElement(CHtmlElement &elm);
 
 		// A new end HTML element has been parsed (</IMG> for exemple)
-		virtual void endElement (uint element_number);
+		virtual void endElement(CHtmlElement &elm);
-
-		// A new begin unparsed element has been found
-		virtual void beginUnparsedElement(const char *buffer, int length);
-
-		// A new end unparsed element has been found
-		virtual void endUnparsedElement(const char *buffer, int length);
 
 		// Add GET params to the url
 		virtual void addHTTPGetParams (std::string &url, bool trustedDomain);
@@ -353,12 +289,8 @@ namespace NLGUI
 		// Add POST params to the libwww list
 		virtual void addHTTPPostParams (SFormFields &formfields, bool trustedDomain);
 
-		// the current request is terminated
+		// parse dom node and all child nodes recursively
-		virtual void requestTerminated();
+		void renderDOM(CHtmlElement &elm);
-
-		// libxml2 html parser functions
-		void htmlElement(xmlNode *node, int element_number);
-		void htmlWalkDOM(xmlNode *a_node);
 
 		// Clear style stack and restore default style
 		void resetCssStyle();
@@ -390,7 +322,7 @@ namespace NLGUI
 		void addString(const ucstring &str);
 
 		// Add an image in the current paragraph
-		void addImage(const std::string &id, const char *image, bool reloadImg=false, const CStyleParams &style = CStyleParams());
+		void addImage(const std::string &id, const std::string &img, bool reloadImg=false, const CStyleParams &style = CStyleParams());
 
 		// Add a text area in the current paragraph
 		CInterfaceGroup *addTextArea (const std::string &templateName, const char *name, uint rows, uint cols, bool multiLine, const ucstring &content, uint maxlength);
@@ -430,6 +362,12 @@ namespace NLGUI
 		std::string		_DocumentUrl;
 		std::string		_DocumentDomain;
 		std::string		_DocumentHtml; // not updated only set by first render
+		// If true, then render _DocumentHtml on next update (replaces content)
+		bool			_RenderNextTime;
+		// true if renderer is waiting for css files to finish downloading (link rel=stylesheet)
+		bool			_WaitingForStylesheet;
+		// list of css file urls that are queued up for download
+		std::vector<std::string> _StylesheetQueue;
 
 		// Valid base href was found
 		bool            _IgnoreBaseUrlTag;
@@ -463,7 +401,6 @@ namespace NLGUI
 
 		// Browsing..
 		bool			_Browsing;
-		bool			_Connecting;
 		double			_TimeoutValue;			// the timeout in seconds
 		double			_ConnectingTimeout;
 		sint			_RedirectsRemaining;
@@ -548,33 +485,13 @@ namespace NLGUI
 		// IL mode
 		bool _LI;
 
-		// Current active style
+		// Keep track of current element style
-		CStyleParams _Style;
+		CCssStyle _Style;
-		// Default style
+		CHtmlElement _HtmlDOM;
-		CStyleParams _StyleDefault;
+		CHtmlElement *_CurrentHTMLElement;
-		// Nested style stack
+		// Backup of CurrentHTMLElement->nextSibling before ::beginElement() is called
-		std::vector<CStyleParams> _StyleParams;
+		// for luaParseHtml() to insert nodes into right place in right order
-		inline void pushStyle()
+		CHtmlElement *_CurrentHTMLNextSibling;
-		{
-			_StyleParams.push_back(_Style);
-		}
-		inline void popStyle()
-		{
-			if (_StyleParams.empty())
-				_Style = _StyleDefault;
-			else
-			{
-				_Style = _StyleParams.back();
-				_StyleParams.pop_back();
-			}
-		}
-
-		inline uint getFontSizeSmaller() const
-		{
-			if (_Style.FontSize < 5)
-				return 3;
-			return _Style.FontSize-2;
-		}
 
 		// Current link
 		std::vector<std::string>	_Link;
@@ -638,14 +555,6 @@ namespace NLGUI
 			return _TR.back();
 		}
 
-		std::vector<STextShadow> _TextShadow;
-		inline STextShadow getTextShadow() const
-		{
-			if (_TextShadow.empty())
-				return STextShadow();
-			return _TextShadow.back();
-		}
-
 		// Forms
 		class CForm
 		{
@@ -807,10 +716,6 @@ namespace NLGUI
 		typedef std::map<uint32, NLMISC::CRefPtr<CGroupHTML> >	TGroupHtmlByUIDMap;
 		static TGroupHtmlByUIDMap _GroupHtmlByUID;
 
-		// read style attribute
-		void getStyleParams(const std::string &styleString, CStyleParams &style, const CStyleParams &current);
-		void applyCssMinMax(sint32 &width, sint32 &height, sint32 minw=0, sint32 minh=0, sint32 maxw=0, sint32 maxh=0);
-
 		// load and render local html file (from bnp for example)
 		void doBrowseLocalFile(const std::string &filename);
 
@@ -824,6 +729,11 @@ namespace NLGUI
 		void buildHTTPPostParams (SFormFields &formfields);
 
 	private:
+		friend class CHtmlParser;
+
+		// move src->Children into CurrentHtmlElement.parent.children element
+		void spliceFragment(std::list<CHtmlElement>::iterator src);
+
 		// decode all HTML entities
 		static ucstring decodeHTMLEntities(const ucstring &str);
 
@@ -847,6 +757,7 @@ namespace NLGUI
 			{
 				if (t == ImgType) imgs.push_back(CDataImageDownload(i, style, imagetype));
 			}
+			~CDataDownload();
 
 		public:
 			CCurlWWWData *data;
@@ -860,11 +771,13 @@ namespace NLGUI
 			std::vector<CDataImageDownload> imgs;
 		};
 
-		std::vector<CDataDownload> Curls;
+		std::list<CDataDownload> Curls;
 		CURLM *MultiCurl;
 		int RunningCurls;
 
 		bool startCurlDownload(CDataDownload &download);
+		void finishCurlDownload(const CDataDownload &download);
+		void pumpCurlQueue();
 
 		void initImageDownload();
 		void checkImageDownload();
@@ -883,11 +796,100 @@ namespace NLGUI
 		bool addBnpDownload(std::string url, const std::string &action, const std::string &script, const std::string &md5sum);
 		std::string localBnpName(const std::string &url);
 
+		// add css file from <link href=".." rel="stylesheet"> to download queue
+		void addStylesheetDownload(std::vector<std::string> links);
+
+		// stop all curl downalods (html and data)
 		void releaseDownloads();
 		void checkDownloads();
 
+		// _CurlWWW download finished
+		void htmlDownloadFinished(bool success, const std::string &error);
+		// images, stylesheets, etc finished downloading
+		void dataDownloadFinished(bool success, const std::string &error, CDataDownload &data);
+
 		// HtmlType download finished
 		void htmlDownloadFinished(const std::string &content, const std::string &type, long code);
+
+		// stylesheet finished downloading. if local file does not exist, then it failed (404)
+		void cssDownloadFinished(const std::string &url, const std::string &local);
+
+		// read common table/tr/td parameters and push them to _CellParams
+		void getCellsParameters(const CHtmlElement &elm, bool inherit);
+
+		// render _HtmlDOM
+		void renderDocument();
+
+		// :before, :after rendering
+		void renderPseudoElement(const std::string &pseudo, const CHtmlElement &elm);
+
+		// HTML elements
+		void htmlA(const CHtmlElement &elm);
+		void htmlAend(const CHtmlElement &elm);
+		void htmlBASE(const CHtmlElement &elm);
+		void htmlBODY(const CHtmlElement &elm);
+		void htmlBR(const CHtmlElement &elm);
+		void htmlDD(const CHtmlElement &elm);
+		void htmlDDend(const CHtmlElement &elm);
+		//void htmlDEL(const CHtmlElement &elm);
+		void htmlDIV(const CHtmlElement &elm);
+		void htmlDIVend(const CHtmlElement &elm);
+		void htmlDL(const CHtmlElement &elm);
+		void htmlDLend(const CHtmlElement &elm);
+		void htmlDT(const CHtmlElement &elm);
+		void htmlDTend(const CHtmlElement &elm);
+		//void htmlEM(const CHtmlElement &elm);
+		void htmlFONT(const CHtmlElement &elm);
+		void htmlFORM(const CHtmlElement &elm);
+		void htmlH(const CHtmlElement &elm);
+		void htmlHend(const CHtmlElement &elm);
+		void htmlHEAD(const CHtmlElement &elm);
+		void htmlHEADend(const CHtmlElement &elm);
+		void htmlHR(const CHtmlElement &elm);
+		void htmlHTML(const CHtmlElement &elm);
+		void htmlI(const CHtmlElement &elm);
+		void htmlIend(const CHtmlElement &elm);
+		void htmlIMG(const CHtmlElement &elm);
+		void htmlINPUT(const CHtmlElement &elm);
+		void htmlLI(const CHtmlElement &elm);
+		void htmlLIend(const CHtmlElement &elm);
+		void htmlLUA(const CHtmlElement &elm);
+		void htmlLUAend(const CHtmlElement &elm);
+		void htmlMETA(const CHtmlElement &elm);
+		void htmlOBJECT(const CHtmlElement &elm);
+		void htmlOBJECTend(const CHtmlElement &elm);
+		void htmlOL(const CHtmlElement &elm);
+		void htmlOLend(const CHtmlElement &elm);
+		void htmlOPTION(const CHtmlElement &elm);
+		void htmlOPTIONend(const CHtmlElement &elm);
+		void htmlP(const CHtmlElement &elm);
+		void htmlPend(const CHtmlElement &elm);
+		void htmlPRE(const CHtmlElement &elm);
+		void htmlPREend(const CHtmlElement &elm);
+		void htmlSCRIPT(const CHtmlElement &elm);
+		void htmlSCRIPTend(const CHtmlElement &elm);
+		void htmlSELECT(const CHtmlElement &elm);
+		void htmlSELECTend(const CHtmlElement &elm);
+		//void htmlSMALL(const CHtmlElement &elm);
+		//void htmlSPAN(const CHtmlElement &elm);
+		//void htmlSTRONG(const CHtmlElement &elm);
+		void htmlSTYLE(const CHtmlElement &elm);
+		void htmlSTYLEend(const CHtmlElement &elm);
+		void htmlTABLE(const CHtmlElement &elm);
+		void htmlTABLEend(const CHtmlElement &elm);
+		void htmlTD(const CHtmlElement &elm);
+		void htmlTDend(const CHtmlElement &elm);
+		void htmlTEXTAREA(const CHtmlElement &elm);
+		void htmlTEXTAREAend(const CHtmlElement &elm);
+		void htmlTH(const CHtmlElement &elm);
+		void htmlTHend(const CHtmlElement &elm);
+		void htmlTITLE(const CHtmlElement &elm);
+		void htmlTITLEend(const CHtmlElement &elm);
+		void htmlTR(const CHtmlElement &elm);
+		void htmlTRend(const CHtmlElement &elm);
+		//void htmlU(const CHtmlElement &elm);
+		void htmlUL(const CHtmlElement &elm);
+		void htmlULend(const CHtmlElement &elm);
 	};
 
 	// adapter group that store y offset for inputs inside an html form

code/nel/include/nel/gui/html_element.h

@@ -0,0 +1,86 @@
+// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
+// Copyright (C) 2010  Winch Gate Property Limited
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#ifndef CL_HTML_ELEMENT_H
+#define CL_HTML_ELEMENT_H
+
+#include "nel/misc/types_nl.h"
+#include "nel/gui/css_style.h"
+
+namespace NLGUI
+{
+	/**
+	 * \brief HTML element
+	 * \date 2019-04-25 18:23 GMT
+	 * \author Meelis Mägi (Nimetu)
+	 */
+	class CHtmlElement
+	{
+	public:
+		enum ENodeType {
+			NONE = 0,
+			ELEMENT_NODE = 1,
+			TEXT_NODE = 3,
+		};
+
+		uint ID; // libwww element enum
+		ENodeType Type;
+		std::string Value; // text node value or element node name
+		std::map<std::string, std::string> Attributes;
+		std::list<CHtmlElement> Children;
+
+		// class names for css matching
+		std::set<std::string> ClassNames;
+
+		// defined style and :before/:after pseudo elements
+		TStyle Style;
+		TStyle StyleBefore;
+		TStyle StyleAfter;
+
+		// hierarchy
+		CHtmlElement *parent;
+		CHtmlElement *previousSibling;
+		CHtmlElement *nextSibling;
+
+		// n'th ELEMENT_NODE in parent.Children, for :nth-child() rules
+		uint childIndex;
+
+		CHtmlElement(ENodeType type = NONE, std::string value = "");
+
+		// returns true if rhs is same pointer
+		friend bool operator==(const CHtmlElement &lhs, const CHtmlElement &rhs)
+		{
+			return &lhs == &rhs;
+		}
+
+		bool hasAttribute(const std::string &key) const;
+
+		bool hasNonEmptyAttribute(const std::string &key) const;
+
+		std::string getAttribute(const std::string &key) const;
+
+		bool hasClass(const std::string &key) const;
+
+		// update Children index/parent/next/prevSibling pointers
+		void reindexChilds();
+
+		// debug
+		std::string toString(bool tree = false, uint depth = 0) const;
+	};
+}
+
+#endif
+

code/nel/include/nel/gui/html_parser.h

@@ -0,0 +1,52 @@
+// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
+// Copyright (C) 2010  Winch Gate Property Limited
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#ifndef CL_HTML_PARSER_H
+#define CL_HTML_PARSER_H
+
+#include "nel/misc/types_nl.h"
+
+namespace NLGUI
+{
+	class CHtmlElement;
+
+	/**
+	 * \brief HTML parsing
+	 * \date 2019-03-15 10:50 GMT
+	 * \author Meelis Mägi (Nimetu)
+	 */
+	class CHtmlParser
+	{
+	public:
+		bool parseHtml(std::string htmlString) const;
+
+		// parse html string into DOM, extract <style> tags into styleString, <link stylesheet> urls into links
+		void getDOM(std::string htmlString, CHtmlElement &parent, std::string &styleString, std::vector<std::string> &links) const;
+
+	private:
+		// iterate over libxml html tree, build DOM, and join all <style> tags together
+		void parseNode(xmlNode *a_node, CHtmlElement &parent, std::string &styleString, std::vector<std::string> &links) const;
+
+		// read <style> tag and add its content to styleString
+		void parseStyle(xmlNode *a_node, std::string &styleString) const;
+
+		// update parent/sibling in elm.Children
+		void reindexChilds(CHtmlElement &elm) const;
+	};
+}
+
+#endif
+

code/nel/include/nel/gui/libwww.h

@@ -276,9 +276,14 @@ namespace NLGUI
 		HTML_ATTR(H6,STYLE),
 	};
 
-
 	#undef HTML_ATTR
 
+	// ***************************************************************************
+	// Read HTML color value from src and set dest
+	// Can handle #rgb(a), #rrggbb(aa) or rgb()/rgba(), hsl(), hsla() formats
+	// or color name directly
+	bool scanHTMLColor(const char *src, NLMISC::CRGBA &dest);
+
 	// ***************************************************************************
 	// Read a CSS length value, return true if one of supported units '%, rem, em, px, pt'
 	// On failure: 'value' and 'unit' values are undefined
@@ -292,6 +297,9 @@ namespace NLGUI
 	// Parse a HTML color
 	NLMISC::CRGBA getColor (const char *color);
 
+	// return css color in rgba() format
+	std::string getRGBAString(const NLMISC::CRGBA &color);
+
 	// ***************************************************************************
 
 	const std::string &setCurrentDomain(const std::string &uri);

code/nel/include/nel/misc/common.h

@@ -276,7 +276,6 @@ template <class T> T trimRightWhiteSpaces (const T &str)
 	return str.substr (0, end);
 }
 
-
 // remove spaces and tabs at the begin and end of the string
 template <class T> T trimSeparators (const T &str)
 {
@@ -290,6 +289,17 @@ template <class T> T trimSeparators (const T &str)
 	return str.substr (start, end-start);
 }
 
+// if both first and last char are quotes (' or "), then remove them
+template <class T> T trimQuotes (const T&str)
+{
+	typename T::size_type size = str.size();
+	if (size == 0)
+		return str;
+	if (str[0] != str[size-1] && (str[0] != '"' || str[0] != '\''))
+		return str;
+	return str.substr(1, size - 1);
+}
+
 //////////////////////////////////////////////////////////////////////////
 // ****  DEPRECATED *****: PLEASE DON'T USE THESE METHODS BUT FUNCTIONS ABOVE toLower() and toUpper()
 //////////////////////////////////////////////////////////////////////////

code/nel/src/gui/css_parser.cpp

@@ -0,0 +1,716 @@
+// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
+// Copyright (C) 2010  Winch Gate Property Limited
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#include "stdpch.h"
+
+#include <string>
+#include "nel/misc/types_nl.h"
+#include "nel/gui/css_parser.h"
+#include "nel/gui/css_style.h"
+#include "nel/gui/css_selector.h"
+
+using namespace NLMISC;
+
+#ifdef DEBUG_NEW
+#define new DEBUG_NEW
+#endif
+
+namespace NLGUI
+{
+	// ***************************************************************************
+	// Parse style declarations style, eg. "color:red; font-size: 10px;"
+	//
+	// key is converted to lowercase
+	// value is left as is
+	TStyle CCssParser::parseDecls(const std::string &styleString)
+	{
+		TStyle styles;
+		std::vector<std::string> elements;
+		NLMISC::splitString(styleString, ";", elements);
+
+		for(uint i = 0; i < elements.size(); ++i)
+		{
+			std::string::size_type pos;
+			pos = elements[i].find_first_of(':');
+			if (pos != std::string::npos)
+			{
+				std::string key = trim(toLower(elements[i].substr(0, pos)));
+				std::string value = trim(elements[i].substr(pos+1));
+				styles[key] = value;
+			}
+		}
+
+		return styles;
+	}
+
+	// ***************************************************************************
+	// Parse stylesheet, eg content from main.css file
+	//
+	// Return all found rules
+	void CCssParser::parseStylesheet(const std::string &cssString, std::vector<CCssStyle::SStyleRule> &result)
+	{
+		_Rules.clear();
+		_Style.clear();
+
+		_Style.fromUtf8(cssString);
+		preprocess();
+
+		_Position = 0;
+		while(!is_eof())
+		{
+			skipWhitespace();
+
+			if (_Style[_Position] == (ucchar)'@')
+				readAtRule();
+			else
+				readRule();
+		}
+
+		result.insert(result.end(), _Rules.begin(), _Rules.end());
+		_Rules.clear();
+	}
+
+	// ***************************************************************************
+	// Parse selector with style string
+	// selector: "a#id .class"
+	// style:    "color: red; font-size: 10px;"
+	//
+	// @internal
+	void CCssParser::parseRule(const ucstring &selectorString, const ucstring &styleString)
+	{
+		std::vector<ucstring> selectors;
+		NLMISC::explode(selectorString, ucstring(","), selectors);
+
+		TStyle props;
+		props = parseDecls(styleString.toUtf8());
+
+		// duplicate props to each selector in selector list,
+		// example 'div > p, h1' creates 'div>p' and 'h1'
+		for(uint i=0; i<selectors.size(); ++i)
+		{
+			CCssStyle::SStyleRule rule;
+
+			rule.Selector = parse_selector(trim(selectors[i]), rule.PseudoElement);
+			rule.Properties = props;
+
+			if (!rule.Selector.empty())
+			{
+				_Rules.push_back(rule);
+			}
+		}
+	}
+
+	// ***************************************************************************
+	// Skip over at-rule
+	// @import ... ;
+	// @charset ... ;
+	// @media query { .. }
+	//
+	// @internal
+	void CCssParser::readAtRule()
+	{
+		// skip '@'
+		_Position++;
+
+		// skip 'import', 'media', etc
+		skipIdentifier();
+
+		// skip at-rule statement
+		while(!is_eof() && _Style[_Position] != (ucchar)';')
+		{
+			if (maybe_escape())
+			{
+				escape();
+			}
+			else if (is_quote(_Style[_Position]))
+			{
+				skipString();
+			}
+			else if (is_block_open(_Style[_Position]))
+			{
+				bool mustBreak = (_Style[_Position] == '{');
+				skipBlock();
+
+				if(mustBreak)
+				{
+					break;
+				}
+			}
+			else
+			{
+				_Position++;
+			}
+		}
+
+		// skip ';' or '}'
+		_Position++;
+	}
+
+	// ***************************************************************************
+	// skip over "elm#id.selector[attr]:peseudo, .sel2 { rule }" block
+	// @internal
+	void CCssParser::readRule()
+	{
+		size_t start;
+
+		// selector
+		start = _Position;
+		while(!is_eof())
+		{
+			if (maybe_escape())
+				_Position++;
+			else if (is_quote(_Style[_Position]))
+				skipString();
+			else if (_Style[_Position] == (ucchar)'[')
+				skipBlock();
+			else if (_Style[_Position] == (ucchar)'{')
+				break;
+			else
+				_Position++;
+		}
+
+		if (!is_eof())
+		{
+			ucstring selector;
+			selector.append(_Style, start, _Position - start);
+
+			skipWhitespace();
+
+			// declaration block
+			start = _Position;
+			skipBlock();
+			if (_Position <= _Style.size())
+			{
+				ucstring rules;
+				rules.append(_Style, start + 1, _Position - start - 2);
+
+				parseRule(selector, rules);
+			}
+		}
+	}
+
+	// ***************************************************************************
+	// skip over \abcdef escaped sequence or escaped newline char
+	// @internal
+	void CCssParser::escape()
+	{
+		// skip '\'
+		_Position++;
+		if (is_hex(_Style[_Position]))
+		{
+			// TODO: '\abc def' should be considered one string
+			for(uint i=0; i<6 && is_hex(_Style[_Position]); i++)
+				_Position++;
+
+			if (_Style[_Position] == (ucchar)' ')
+				_Position++;
+		}
+		else if (_Style[_Position] != 0x0A)
+			_Position++;
+	}
+
+	// ***************************************************************************
+	// @internal
+	bool CCssParser::skipIdentifier()
+	{
+		size_t start = _Position;
+		bool valid = true;
+		while(!is_eof() && valid)
+		{
+			if (maybe_escape())
+			{
+				escape();
+				continue;
+			}
+			else if (is_alpha(_Style[_Position]))
+			{
+				// valid
+			}
+			else if (is_digit(_Style[_Position]))
+			{
+				if (_Position == start)
+				{
+					// cannot start with digit
+					valid = false;
+				}
+				else if ((_Position - start) == 0 && _Style[_Position-1] == (ucchar)'-')
+				{
+					// cannot start with -#
+					valid = false;
+				}
+			}
+			else if (_Style[_Position] == (ucchar)'_')
+			{
+				// valid
+			}
+			else if (_Style[_Position] >= 0x0080)
+			{
+				// valid
+			}
+			else if (_Style[_Position] == (ucchar)'-')
+			{
+				if ((_Position - start) == 1 && _Style[_Position-1] == (ucchar)'-')
+				{
+					// cannot start with --
+					valid = false;
+				}
+			}
+			else
+			{
+				// we're done
+				break;
+			}
+
+			_Position++;
+		}
+
+		return valid && !is_eof();
+	}
+
+	// ***************************************************************************
+	// skip over (..), [..], or {..} blocks
+	// @internal
+	void CCssParser::skipBlock()
+	{
+		ucchar startChar = _Style[_Position];
+
+		// block start
+		_Position++;
+		while(!is_eof() && !is_block_close(_Style[_Position], startChar))
+		{
+			if (maybe_escape())
+				// skip backslash and next char
+				_Position += 2;
+			else if (is_quote(_Style[_Position]))
+				skipString();
+			else if (is_block_open(_Style[_Position]))
+				skipBlock();
+			else
+				_Position++;
+		}
+
+		// block end
+		_Position++;
+	}
+
+	// ***************************************************************************
+	// skip over quoted string
+	// @internal
+	void CCssParser::skipString()
+	{
+		ucchar endChar = _Style[_Position];
+
+		// quote start
+		_Position++;
+		while(!is_eof() && _Style[_Position] != endChar)
+		{
+			if (maybe_escape())
+				_Position++;
+
+			_Position++;
+		}
+
+		// quote end
+		_Position++;
+	}
+
+	// ***************************************************************************
+	// @internal
+	void CCssParser::skipWhitespace()
+	{
+		while(!is_eof() && is_whitespace(_Style[_Position]))
+			_Position++;
+	}
+
+	// ***************************************************************************
+	// parse selector list
+	// @internal
+	std::vector<CCssSelector> CCssParser::parse_selector(const ucstring &sel, std::string &pseudoElement) const
+	{
+		std::vector<CCssSelector> result;
+		CCssSelector current;
+
+		pseudoElement.clear();
+
+		bool failed = false;
+		ucstring::size_type start = 0, pos = 0;
+		while(pos < sel.size())
+		{
+			ucstring uc;
+			uc = sel[pos];
+			if (is_nmchar(sel[pos]) && current.empty())
+			{
+				pos++;
+
+				while(pos < sel.size() && is_nmchar(sel[pos]))
+					pos++;
+
+				current.Element = toLower(sel.substr(start, pos - start).toUtf8());
+				start = pos;
+				continue;
+			}
+
+			if(sel[pos] == '#')
+			{
+				pos++;
+				start=pos;
+
+				while(pos < sel.size() && is_nmchar(sel[pos]))
+					pos++;
+
+				current.Id = toLower(sel.substr(start, pos - start).toUtf8());
+				start = pos;
+			}
+			else if (sel[pos] == '.')
+			{
+				pos++;
+				start=pos;
+
+				// .classA.classB
+				while(pos < sel.size() && (is_nmchar(sel[pos]) || sel[pos] == '.'))
+					pos++;
+
+				current.setClass(toLower(sel.substr(start, pos - start).toUtf8()));
+				start = pos;
+			}
+			else if (sel[pos] == '[')
+			{
+				pos++;
+				start = pos;
+
+				if (is_whitespace(sel[pos]))
+				{
+					while(pos < sel.size() && is_whitespace(sel[pos]))
+						pos++;
+
+					start = pos;
+				}
+
+				ucstring key;
+				ucstring value;
+				ucchar op = ' ';
+
+				// key
+				while(pos < sel.size() && is_nmchar(sel[pos]))
+					pos++;
+
+				key = sel.substr(start, pos - start);
+				if (pos == sel.size()) break;
+
+				if (is_whitespace(sel[pos]))
+				{
+					while(pos < sel.size() && is_whitespace(sel[pos]))
+						pos++;
+
+					if (pos == sel.size()) break;
+				}
+
+				if (sel[pos] == ']')
+				{
+					current.addAttribute(key.toUtf8());
+				}
+				else
+				{
+					// operand
+					op = sel[pos];
+					if (op == '~' || op == '|' || op == '^' || op == '$' || op == '*')
+					{
+						pos++;
+						if (pos == sel.size()) break;
+					}
+
+					// invalid rule?, eg [attr^value]
+					if (sel[pos] != '=')
+					{
+						while(pos < sel.size() && sel[pos] != ']')
+							pos++;
+
+						if (pos == sel.size()) break;
+
+						start = pos;
+					}
+					else
+					{
+						// skip '='
+						pos++;
+
+						if (is_whitespace(sel[pos]))
+						{
+							while(pos < sel.size() && is_whitespace(sel[pos]))
+								pos++;
+
+							if (pos == sel.size()) break;
+						}
+
+						// value
+						start = pos;
+						bool quote = false;
+						char quoteOpen;
+						while(pos < sel.size())
+						{
+							if (sel[pos] == '\'' || sel[pos] == '"')
+							{
+								// value is quoted
+								start = pos;
+								pos++;
+								while(pos < sel.size() && sel[pos] != sel[start])
+								{
+									if (sel[pos] == '\\')
+									{
+										pos++;
+									}
+									pos++;
+								}
+
+								if (pos == sel.size()) break;
+
+								value = sel.substr(start + 1, pos - start - 1);
+								break;
+							}
+							else if (sel[pos] == '\\')
+							{
+								pos++;
+							}
+							else if (!quote && sel[pos] == ']')
+							{
+								// unquoted value
+								value = sel.substr(start, pos - start);
+								break;
+							}
+
+							pos++;
+						} // while 'value'
+
+						// TODO: scan for sel[pos] == ']'
+						if (pos == sel.size()) break;
+						// whitespace between quote and ], ie '[ attr $= "val" ]'
+						if (sel[pos] != ']')
+						{
+							while(pos < sel.size() && sel[pos] != ']')
+								pos++;
+						}
+						if (pos == sel.size()) break;
+
+						current.addAttribute(key.toUtf8(), value.toUtf8(), (char)op);
+					} // op error
+				} // no value
+
+				// skip ']'
+				pos++;
+
+				start = pos;
+			}
+			else if (sel[pos] == ':')
+			{
+				pos++;
+				start=pos;
+				// pseudo element, eg '::before'
+				if (pos < sel.size() && sel[pos] == ':')
+				{
+					pos++;
+				}
+				// :first-child
+				// :nth-child(2n+0)
+				// :not(h1, div#main)
+				// :not(:nth-child(2n+0))
+				// has no support for quotes, eg  :not(h1[attr=")"]) fails
+				while(pos < sel.size() && (is_nmchar(sel[pos]) || sel[pos] == '('))
+				{
+					if (sel[pos] == '(')
+					{
+						uint open = 1;
+						pos++;
+						while(pos < sel.size() && open > 0)
+						{
+							if (sel[pos] == ')')
+								open--;
+							else if (sel[pos] == '(')
+								open++;
+
+							pos++;
+						}
+						break;
+					}
+					else
+					{
+						pos++;
+					}
+				}
+
+				std::string key = toLower(sel.substr(start, pos - start).toUtf8());
+				if (key.empty())
+				{
+					failed = true;
+					break;
+				}
+
+				if (key[0] == ':' || key == "after" || key == "before" || key == "cue" || key == "first-letter" || key == "first-line")
+				{
+					if (!pseudoElement.empty())
+					{
+						failed = true;
+						break;
+					}
+					if (key[0] != ':')
+					{
+						pseudoElement = ":" + key;
+					}
+					else
+					{
+						pseudoElement = key;
+					}
+				}
+				else
+				{
+					current.addPseudoClass(key);
+				}
+
+				start = pos;
+			}
+			else if (!current.empty())
+			{
+				// pseudo element like ':before' can only be set on the last selector
+				// user action pseudo classes can be used after pseudo element (ie, :focus, :hover)
+				// there is no support for those and its safe to just fail the selector
+				if (!result.empty() && !pseudoElement.empty())
+				{
+					failed = true;
+					break;
+				}
+
+				// start new selector as combinator is part of next selector
+				result.push_back(current);
+				current = CCssSelector();
+
+				// detect and remove whitespace around combinator, eg ' > '
+				bool isSpace = is_whitespace(sel[pos]);;
+				while(pos < sel.size() && is_whitespace(sel[pos]))
+					pos++;
+
+				if (sel[pos] == '>' || sel[pos] == '+' || sel[pos] == '~')
+				{
+					current.Combinator = sel[pos];
+					pos++;
+
+					while(pos < sel.size() && is_whitespace(sel[pos]))
+						pos++;
+				}
+				else if (isSpace)
+				{
+					current.Combinator = ' ';
+				}
+				else
+				{
+					// unknown
+					current.Combinator = sel[pos];
+					pos++;
+				}
+
+				start = pos;
+			}
+			else
+			{
+				pos++;
+			}
+		}
+
+		if (failed)
+		{
+			result.clear();
+		}
+		else if (result.empty() || !current.empty())
+		{
+			// pseudo element like ':before' can only be set on the last selector
+			if (!result.empty() && !pseudoElement.empty())
+			{
+				// failed
+				result.clear();
+			}
+			else
+			{
+				result.push_back(current);
+			}
+		}
+
+		return result;
+	}
+
+	// ***************************************************************************
+	// @internal
+	void CCssParser::preprocess()
+	{
+		_Position = 0;
+
+		size_t start;
+		size_t charsLeft;
+		bool quote = false;
+		ucchar quoteChar;
+		while(!is_eof())
+		{
+			charsLeft = _Style.size() - _Position - 1;
+
+			// FF, CR
+			if (_Style[_Position] == 0x0C || _Style[_Position] == 0x0D)
+			{
+				uint len = 1;
+				// CR, LF
+				if (charsLeft >= 1 && _Style[_Position] == 0x0D && _Style[_Position+1] == 0x0A)
+					len++;
+
+				ucstring tmp;
+				tmp += 0x000A;
+				_Style.replace(_Position, 1, tmp);
+			}
+			else if (_Style[_Position] == 0x00)
+			{
+				// Unicode replacement character
+				_Style[_Position] = 0xFFFD;
+			}
+			else
+			{
+				// strip comments for easier parsing
+				if (_Style[_Position] == '\\')
+				{
+					_Position++;
+				}
+				else if (is_quote(_Style[_Position]))
+				{
+					if (!quote)
+						quoteChar = _Style[_Position];
+
+					if (quote && _Style[_Position] == quoteChar)
+						quote = !quote;
+				}
+				else if (!quote && is_comment_open())
+				{
+					size_t pos = _Style.find(ucstring("*/"), _Position + 2);
+					if (pos == std::string::npos)
+						pos = _Style.size();
+
+					_Style.erase(_Position, pos - _Position + 2);
+					ucstring uc;
+					uc = _Style[_Position];
+
+					// _Position is already at correct place
+					continue;
+				}
+			}
+
+			_Position++;
+		}
+	}
+} // namespace
+

code/nel/src/gui/css_selector.cpp

@@ -0,0 +1,314 @@
+// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
+// Copyright (C) 2010  Winch Gate Property Limited
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#include "stdpch.h"
+
+#include <string>
+#include "nel/misc/types_nl.h"
+#include "nel/gui/css_selector.h"
+#include "nel/gui/html_element.h"
+
+using namespace NLMISC;
+
+#ifdef DEBUG_NEW
+#define new DEBUG_NEW
+#endif
+
+namespace NLGUI
+{
+	CCssSelector::CCssSelector(std::string elm, std::string id, std::string cls, char comb)
+		: Element(elm), Id(id), Class(), Attr(), PseudoClass(), Combinator(comb)
+	{
+		if (!cls.empty())
+		{
+			setClass(cls);
+		}
+	}
+
+	uint32 CCssSelector::specificity() const
+	{
+		uint ret = 0;
+
+		if (!Element.empty() && Element != "*") ret += 0x000001;
+		// Pseudo Element is added in CCssStyle
+		//if (!PseudoElement.empty())             ret += 0x000001;
+
+		if (!Class.empty())                     ret += 0x000100 * Class.size();
+		if (!Attr.empty())                      ret += 0x000100 * Attr.size();
+		// TODO: has different cases
+		if (!PseudoClass.empty())               ret += 0x000100 * PseudoClass.size();
+
+		if (!Id.empty())                        ret += 0x010000;
+
+		return ret;
+	}
+
+	void CCssSelector::setClass(const std::string &cls)
+	{
+		std::vector<std::string> parts;
+		NLMISC::splitString(toLower(cls), ".", parts);
+
+		for(uint i = 0; i< parts.size(); i++)
+		{
+			std::string cname = trim(parts[i]);
+			if (!cname.empty())
+			{
+				Class.push_back(cname);
+			}
+		}
+	}
+
+	void CCssSelector::addAttribute(const std::string &key, const std::string &val, char op)
+	{
+		Attr.push_back(SAttribute(key, val, op));
+	}
+
+	void CCssSelector::addPseudoClass(const std::string &key)
+	{
+		if (key.empty()) return;
+
+		PseudoClass.push_back(key);
+	}
+
+	bool CCssSelector::match(const CHtmlElement &elm) const
+	{
+		if (!Element.empty() && Element != "*" && Element != elm.Value)
+		{
+			return false;
+		}
+
+		if (!Id.empty() && Id != elm.getAttribute("id"))
+		{
+			return false;
+		}
+
+		if (!Class.empty() && !matchClass(elm))
+		{
+			return false;
+		}
+
+		if (!Attr.empty() && !matchAttributes(elm))
+		{
+			return false;
+		}
+
+		if (!PseudoClass.empty() && !matchPseudoClass(elm))
+		{
+			return false;
+		}
+
+		return true;
+	}
+
+	bool CCssSelector::matchClass(const CHtmlElement &elm) const
+	{
+		// make sure all class names we have, other has as well
+		for(uint i = 0; i< Class.size(); ++i)
+		{
+			if (!elm.hasClass(Class[i]))
+			{
+				return false;
+			}
+		}
+
+		return true;
+	}
+
+	bool CCssSelector::matchAttributes(const CHtmlElement &elm) const
+	{
+		// TODO: refactor into matchAttributeSelector
+		for(uint i = 0; i< Attr.size(); ++i)
+		{
+			if (!elm.hasAttribute(Attr[i].key)) return false;
+
+			std::string value = elm.getAttribute(Attr[i].key);
+			switch(Attr[i].op)
+			{
+				case '=':
+					if (Attr[i].value != value) return false;
+					break;
+				case '~':
+					{
+						// exact match to any of whitespace separated words from element attribute
+						if (Attr[i].value.empty()) return false;
+
+						std::vector<std::string> parts;
+						NLMISC::splitString(value, " ", parts);
+						bool found = false;
+						for(uint j = 0; j < parts.size(); j++)
+						{
+							if (Attr[i].value == parts[j])
+							{
+								found = true;
+								break;
+							}
+						}
+						if (!found) return false;
+					}
+					break;
+				case '|':
+					// exact value, or start with val+'-'
+					if (value != Attr[i].value && value.find(Attr[i].value + "-") == std::string::npos) return false;
+					break;
+				case '^':
+					// prefix, starts with
+					if (Attr[i].value.empty()) return false;
+					if (value.find(Attr[i].value) != 0) return false;
+					break;
+				case '$':
+					// suffic, ends with
+					if (Attr[i].value.empty() || value.size() < Attr[i].value.size()) return false;
+					if (Attr[i].value == value.substr(value.size() - Attr[i].value.size())) return false;
+					break;
+				case '*':
+					if (Attr[i].value.empty()) return false;
+					if (value.find(Attr[i].value) == std::string::npos) return false;
+					break;
+				case ' ':
+					// contains key, ignore value
+					break;
+				default:
+					// unknown comparison
+					return false;
+			}
+		}
+
+		return true;
+	}
+
+	bool CCssSelector::matchPseudoClass(const CHtmlElement &elm) const
+	{
+		for(uint i = 0; i< PseudoClass.size(); i++)
+		{
+			if (PseudoClass[i] == "root")
+			{
+				// ':root' is just 'html' with higher specificity
+				if (elm.Value != "html") return false;
+			}
+			else if (PseudoClass[i] == "only-child")
+			{
+				if (elm.parent && !elm.parent->Children.empty()) return false;
+			}
+			else
+			{
+				if (PseudoClass[i] == "first-child")
+				{
+					if (elm.previousSibling) return false;
+				}
+				else if (PseudoClass[i] == "last-child")
+				{
+					if (elm.nextSibling) return false;
+				}
+				else if (PseudoClass[i].find("nth-child(") != std::string::npos)
+				{
+					sint a, b;
+					// TODO: there might be multiple :nth-child() on single selector, so current can't cache it
+					parseNth(PseudoClass[i], a, b);
+
+					// 1st child should be '1' and not '0'
+					if (!matchNth(elm.childIndex+1, a, b)) return false;
+				}
+				else
+				{
+					return false;
+				}
+			}
+		}
+
+		return true;
+	}
+
+	void CCssSelector::parseNth(const std::string &pseudo, sint &a, sint &b) const
+	{
+		a = 0;
+		b = 0;
+
+		std::string::size_type start = pseudo.find_first_of("(") + 1;
+		std::string::size_type end = pseudo.find_first_of(")");
+
+		if (start == std::string::npos) return;
+
+		std::string expr = toLower(pseudo.substr(start, end - start));
+
+		if (expr.empty()) return;
+
+		if (expr == "even")
+		{
+			// 2n+0
+			a = 2;
+			b = 0;
+		}
+		else if (expr == "odd")
+		{
+			// 2n+1
+			a = 2;
+			b = 1;
+		}
+		else
+		{
+			// -An+B, An+B, An-B
+			std::string::size_type pos;
+
+			start = 0;
+			pos = expr.find_first_of("n", start);
+			if (pos == std::string::npos)
+			{
+				fromString(expr, b);
+			}
+			else if (pos == 0)
+			{
+				// 'n' == '1n'
+				a = 1;
+			}
+			else if (expr[0] == '-' && pos == 1)
+			{
+				// '-n' == '-1n'
+				a = -1;
+			}
+			else
+			{
+				fromString(expr.substr(start, pos - start), a);
+			}
+
+			start = pos;
+			pos = expr.find_first_of("+-", start);
+			if (pos != std::string::npos && (expr[pos] == '+' || expr[pos] == '-'))
+			{
+				// copy with sign char
+				fromString(expr.substr(pos, end - pos), b);
+			}
+		}
+	}
+
+	bool CCssSelector::matchNth(sint childNr, sint a, sint b) const
+	{
+		if (a == 0)
+		{
+			return childNr == b;
+		}
+		else if (a > 0)
+		{
+			return childNr >= b && (childNr - b) % a == 0;
+		}
+		else
+		{
+			// a is negative from '-An+B'
+			return childNr <= b && (b - childNr) % (-a) == 0;
+		}
+	}
+
+} // namespace
+

code/nel/src/gui/html_element.cpp

@@ -0,0 +1,168 @@
+// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
+// Copyright (C) 2010  Winch Gate Property Limited
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+#include "stdpch.h"
+
+#include "nel/gui/html_element.h"
+
+using namespace std;
+using namespace NLMISC;
+
+#ifdef DEBUG_NEW
+#define new DEBUG_NEW
+#endif
+
+namespace NLGUI
+{
+	// ***************************************************************************
+	CHtmlElement::CHtmlElement(ENodeType type, std::string value)
+		: ID(0), Type(type), Value(value), parent(NULL), previousSibling(NULL), nextSibling(NULL), childIndex(0)
+	{}
+
+	// ***************************************************************************
+	bool CHtmlElement::hasAttribute(const std::string &key) const
+	{
+		return Attributes.find(key) != Attributes.end();
+	}
+
+	// ***************************************************************************
+	bool CHtmlElement::hasNonEmptyAttribute(const std::string &key) const
+	{
+		return !getAttribute(key).empty();
+	}
+
+	// ***************************************************************************
+	std::string CHtmlElement::getAttribute(const std::string &key) const
+	{
+		std::map<std::string, std::string>::const_iterator it = Attributes.find(key);
+		return (it != Attributes.end() ? it->second : "");
+	}
+
+	// ***************************************************************************
+	bool CHtmlElement::hasClass(const std::string &key) const
+	{
+		return ClassNames.find(key) != ClassNames.end();
+	}
+
+	// ***************************************************************************
+	void CHtmlElement::reindexChilds()
+	{
+		uint index = 0;
+		CHtmlElement *prev = NULL;
+		std::list<CHtmlElement>::iterator it;
+		for(it = Children.begin(); it != Children.end(); ++it)
+		{
+			if (it->Type == ELEMENT_NODE)
+			{
+				it->parent = this;
+				it->previousSibling = prev;
+				it->nextSibling = NULL;
+				if (prev)
+				{
+					prev->nextSibling = &(*it);
+				}
+				it->childIndex = index;
+				index++;
+				prev = &(*it);
+			}
+		}
+	}
+
+	// ***************************************************************************
+	std::string CHtmlElement::toString(bool tree, uint depth) const
+	{
+		std::string result;
+		if (depth > 0)
+		{
+			result = NLMISC::toString("[%d]", depth);
+			result.append(depth, '-');
+		}
+		if (Type == NONE || Type == ELEMENT_NODE)
+		{
+			result += "<" + Value;
+			for(std::map<std::string, std::string>::const_iterator it = Attributes.begin(); it != Attributes.end(); ++it)
+			{
+				if (it->first == "class")
+				{
+					result += " class=\"";
+					for(std::set<std::string>::const_iterator it2 = ClassNames.begin(); it2 != ClassNames.end(); ++it2)
+					{
+						if (it2 != ClassNames.begin())
+						{
+							result += " ";
+						}
+						result += *it2;
+					}
+					result += "\"";
+				}
+				else
+				{
+					result += " " + it->first + "=\"" + it->second + "\"";
+				}
+			}
+			result += NLMISC::toString(" data-debug=\"childIndex: %d\"", childIndex);
+			result += ">";
+
+			if (tree)
+			{
+				result += "\n";
+				for(std::list<CHtmlElement>::const_iterator it = Children.begin(); it != Children.end(); ++it)
+				{
+					result += it->toString(tree, depth+1);
+				}
+				if (depth > 0)
+				{
+					result += NLMISC::toString("[%d]", depth);
+					result.append(depth, '-');
+				}
+				result += "</" + Value + ">\n";
+			}
+		}
+		else
+		{
+			if (Value.find("\n") == std::string::npos)
+			{
+				result += "{" + Value + "}";
+			}
+			else
+			{
+				result += "{";
+				std::string::size_type start = 0;
+				std::string::size_type pos = Value.find_first_of("\n\r\t");
+				while(pos != std::string::npos)
+				{
+					result += Value.substr(start, pos - start);
+					if (Value[pos] == '\n')
+					{
+						result += "⏎";
+					}
+					else if (Value[pos] == '\t')
+					{
+						result += "⇥";
+					}
+
+					start = pos+1;
+					pos = Value.find_first_of("\n\r\t", start);
+				}
+				result += "}";
+			}
+			if (tree) result += "\n";
+		}
+
+		return result;
+	};
+} // namespace

code/nel/src/gui/html_parser.cpp

@@ -17,13 +17,14 @@
 
 #include "stdpch.h"
 
+#include "nel/gui/html_parser.h"
+
 #include <string>
 #include <libxml/HTMLparser.h>
 
 #include "nel/misc/types_nl.h"
 #include "nel/gui/libwww.h"
 #include "nel/gui/group_html.h"
-#include "nel/gui/lua_ihm.h"
 
 using namespace std;
 using namespace NLMISC;
@@ -34,71 +35,40 @@ using namespace NLMISC;
 
 namespace NLGUI
 {
-	// ***************************************************************************
-	void CGroupHTML::htmlElement(xmlNode *node, int element_number)
-	{
-		SGML_dtd *HTML_DTD = HTML_dtd ();
 
-		if (element_number < HTML_ELEMENTS)
+	// ***************************************************************************
+	void CHtmlParser::parseStyle(xmlNode *a_node, std::string &styleString) const
 	{
-			CXMLAutoPtr ptr;
+		xmlNode *node = a_node;
-			// load attributes into libwww structs
+		while(node)
-			std::vector<bool> present;
-			std::vector<const char *>value;
-			std::string strvalues[MAX_ATTRIBUTES];
-			present.resize(30, false);
-			value.resize(30);
-
-			uint nbAttributes = std::min(MAX_ATTRIBUTES, HTML_DTD->tags[element_number].number_of_attributes);
-			for(uint i=0; i<nbAttributes; i++)
 		{
-				std::string name;
+			if (node->type == XML_CDATA_SECTION_NODE)
-				name = toLower(std::string(HTML_DTD->tags[element_number].attributes[i].name));
-				ptr = xmlGetProp(node, (const xmlChar *)name.c_str());
-				if (ptr)
 			{
-					// copy xmlChar to string (xmlChar will be released)
+				styleString += (const char*)node->content;
-					strvalues[i] = (const char *)(ptr);
-					// now use string pointer in value[] array
-					value[i] = strvalues[i].c_str();
-					present[i] = true;
-				}
-			}
-
-			beginElement(element_number, present, value);
 			}
 			else
 			{
-			beginUnparsedElement((const char *)(node->name), xmlStrlen(node->name));
+				nlwarning("<style> tag has child elements other than cdata[%d]", node->type);
 			}
 
-		// recursive - text content / child nodes
+			node = node->next;
-		htmlWalkDOM(node->children);
-
-		// closing tag
-		if (element_number < HTML_ELEMENTS)
-		{
-			endElement(element_number);
-		}
-		else
-		{
-			endUnparsedElement((const char *)(node->name), xmlStrlen(node->name));
 		}
 	}
 
 	// ***************************************************************************
 	// recursive function to walk html document
-	void CGroupHTML::htmlWalkDOM(xmlNode *a_node)
+	void CHtmlParser::parseNode(xmlNode *a_node, CHtmlElement &parent, std::string &styleString, std::vector<std::string> &links) const
 	{
 		SGML_dtd *HTML_DTD = HTML_dtd ();
 
+		uint childIndex = 0;
 		uint element_number;
 		xmlNode *node = a_node;
 		while(node)
 		{
 			if (node->type == XML_TEXT_NODE)
 			{
-				addText((const char *)(node->content), xmlStrlen(node->content));
+				parent.Children.push_back(CHtmlElement(CHtmlElement::TEXT_NODE, (const char*)(node->content)));
 			}
 			else
 			if (node->type == XML_ELEMENT_NODE)
@@ -110,7 +80,123 @@ namespace NLGUI
 						break;
 				}
 
-				htmlElement(node, element_number);
+				// get pointer to previous sibling
+				CHtmlElement *prevSibling = NULL;
+				if (!parent.Children.empty())
+				{
+					// skip text nodes
+					for(std::list<CHtmlElement>::reverse_iterator it = parent.Children.rbegin(); it != parent.Children.rend(); ++it)
+					{
+						if (it->Type == CHtmlElement::ELEMENT_NODE)
+						{
+							prevSibling = &(*it);
+							break;
+						}
+					}
+				}
+
+				parent.Children.push_back(CHtmlElement(CHtmlElement::ELEMENT_NODE, toLower((const char*)node->name)));
+				CHtmlElement &elm = parent.Children.back();
+				elm.ID = element_number;
+				elm.parent = &parent;
+				elm.childIndex = childIndex;
+
+				// previous/next sibling that is ELEMENT_NODE
+				elm.previousSibling = prevSibling;
+				if (prevSibling)
+				{
+					prevSibling->nextSibling = &parent.Children.back();
+				}
+
+				childIndex++;
+
+				// TODO: harvest <link type="css">, <style>, <img>
+
+				elm.Attributes.clear();
+
+				for (xmlAttr *cur_attr = node->properties; cur_attr; cur_attr = cur_attr->next) {
+					std::string key(toLower((const char *)(cur_attr->name)));
+					std::string value;
+					if (cur_attr->children)
+					{
+						value = (const char *)(cur_attr->children->content);
+					}
+					elm.Attributes[key] = value;
+				}
+
+				if (elm.hasAttribute("class"))
+				{
+					std::vector<std::string> parts;
+					NLMISC::splitString(elm.getAttribute("class"), " ", parts);
+					for(uint i = 0; i<parts.size();++i)
+					{
+						elm.ClassNames.insert(toLower(trim(parts[i])));
+					}
+				}
+
+				if (elm.Value == "style")
+				{
+					// <style type="text/css" media="all, screen">
+					// ...
+					// </style>
+					bool useStyle = true;
+					if (elm.hasAttribute("media"))
+					{
+						std::string media = trim(toLower(elm.Attributes["media"]));
+						useStyle = media.empty() || media.find("all") != std::string::npos || media.find("screen") != std::string::npos;
+
+						// <style media="ryzom"> for ingame browser
+						useStyle = useStyle || media == "ryzom";
+					}
+
+					if (useStyle)
+					{
+						parseStyle(node->children, styleString);
+					}
+					// style tag is kept in dom
+				}
+				if (elm.Value == "link" && elm.getAttribute("rel") == "stylesheet")
+				{
+					bool useStyle = true;
+					if (elm.hasAttribute("media"))
+					{
+						std::string media = trim(toLower(elm.Attributes["media"]));
+						useStyle = media.empty() || media.find("all") != std::string::npos || media.find("screen") != std::string::npos;
+
+						// <style media="ryzom"> for ingame browser
+						useStyle = useStyle || media == "ryzom";
+					}
+
+					if (useStyle)
+					{
+						links.push_back(elm.getAttribute("href"));
+					}
+					// link tag is kept in dom
+				}
+				else if (node->children)
+				{
+					parseNode(node->children, elm, styleString, links);
+
+					// must cleanup nested tags that libxml2 does not fix
+					// dt without end tag: <dl><dt><dt></dl>
+					// dd without end tag: <dl><dd><dd></dl>
+					if (!elm.Children.empty() && (elm.Value == "dt" || elm.Value == "dd"))
+					{
+						std::string tag = elm.Value;
+						std::list<CHtmlElement>::iterator it;
+						for(it = elm.Children.begin(); it != elm.Children.end(); ++it)
+						{
+							if (it->Type == CHtmlElement::ELEMENT_NODE && it->Value == tag)
+							{
+								// relocate this and remaining elements over to parent
+								parent.Children.splice(parent.Children.end(), elm.Children, it, elm.Children.end());
+								break;
+							}
+						}
+						elm.reindexChilds();
+						parent.reindexChilds();
+					}
+				}
 			}
 
 			// move into next sibling
@@ -297,13 +383,13 @@ namespace NLGUI
 	}
 
 	// ***************************************************************************
-	bool CGroupHTML::parseHtml(std::string htmlString)
+	void CHtmlParser::getDOM(std::string htmlString, CHtmlElement &dom, std::string &styleString, std::vector<std::string> &links) const
 	{
 		htmlParserCtxtPtr parser = htmlCreatePushParserCtxt(NULL, NULL, NULL, 0, NULL, XML_CHAR_ENCODING_UTF8);
 		if (!parser)
 		{
 			nlwarning("Creating html parser context failed");
-			return false;
+			return;
 		}
 
 		htmlCtxtUseOptions(parser, HTML_PARSE_NOBLANKS | HTML_PARSE_NOERROR | HTML_PARSE_NOWARNING | HTML_PARSE_NONET);
@@ -314,45 +400,28 @@ namespace NLGUI
 		htmlParseChunk(parser, htmlString.c_str(), htmlString.size(), 0);
 		htmlParseChunk(parser, "", 0, 1);
 
-		bool success = true;
 		if (parser->myDoc)
 		{
 			xmlNode *root = xmlDocGetRootElement(parser->myDoc);
 			if (root)
 			{
-				htmlWalkDOM(root);
+				styleString.clear();
+				parseNode(root, dom, styleString, links);
 			}
 			else
 			{
 				nlwarning("html root node failed");
-				success = false;
 			}
 			xmlFreeDoc(parser->myDoc);
 		}
 		else
 		{
 			nlwarning("htmlstring parsing failed");
-			success = false;
 		}
 
 		htmlFreeParserCtxt(parser);
-		if (success)
-			_DocumentHtml = htmlString;
-		return success;
-	}
-
-	// ***************************************************************************
-	int CGroupHTML::luaParseHtml(CLuaState &ls)
-	{
-		const char *funcName = "parseHtml";
-		CLuaIHM::checkArgCount(ls, funcName, 1);
-		CLuaIHM::checkArgType(ls, funcName, 1, LUA_TSTRING);
-		std::string html = ls.toString(1);
-
-		parseHtml(html);
-
-		return 0;
 	}
 
 }
 
+

code/nel/src/gui/libwww.cpp

@@ -345,6 +345,373 @@ namespace NLGUI
 		}
 	}
 
+	static bool isHexa(char c)
+	{
+		return isdigit(c) || (tolower(c) >= 'a' && tolower(c) <= 'f');
+	}
+
+	static uint8 convertHexa(char c)
+	{
+		return (uint8) (tolower(c) - (isdigit(c) ? '0' : ('a' - 10)));
+	}
+
+	// scan a color component, and return pointer to next position
+	static const char *scanColorComponent(const char *src, uint8 &intensity)
+	{
+		if (!src) return NULL;
+		if (!isHexa(*src)) return NULL;
+		uint8 value = convertHexa(*src++) << 4;
+		if (!isHexa(*src)) return NULL;
+		value += convertHexa(*src++);
+		intensity = value;
+		return src;
+	}
+
+	static float hueToRgb(float m1, float m2, float h)
+	{
+		if (h < 0) h += 1.0f;
+		if (h > 1) h -= 1.0f;
+		if (h*6 < 1.0f) return m1 + (m2 - m1)*h*6;
+		if (h*2 < 1.0f) return m2;
+		if (h*3 < 2.0f) return m1 + (m2 - m1) * (2.0f/3.0f - h)*6;
+		return m1;
+	}
+
+	static void hslToRgb(float h, float s, float l, CRGBA &result)
+	{
+		float m1, m2;
+		if (l <= 0.5f)
+			m2 = l * (s + 1.0f);
+		else
+			m2 = l + s - l * s;
+		m1 = l*2 - m2;
+
+		result.R = 255 * hueToRgb(m1, m2, h + 1.0f/3.0f);
+		result.G = 255 * hueToRgb(m1, m2, h);
+		result.B = 255 * hueToRgb(m1, m2, h - 1.0f/3.0f);
+		result.A = 255;
+	}
+
+	class CNameToCol
+	{
+	public:
+		const char *Name;
+		CRGBA Color;
+		CNameToCol(const char *name, CRGBA color) : Name(name), Color(color) {}
+	};
+
+	static CNameToCol htmlColorNameToRGBA[] =
+	{
+		CNameToCol("AliceBlue", CRGBA(0xF0, 0xF8, 0xFF)),
+		CNameToCol("AntiqueWhite", CRGBA(0xFA, 0xEB, 0xD7)),
+		CNameToCol("Aqua", CRGBA(0x00, 0xFF, 0xFF)),
+		CNameToCol("Aquamarine", CRGBA(0x7F, 0xFF, 0xD4)),
+		CNameToCol("Azure", CRGBA(0xF0, 0xFF, 0xFF)),
+		CNameToCol("Beige", CRGBA(0xF5, 0xF5, 0xDC)),
+		CNameToCol("Bisque", CRGBA(0xFF, 0xE4, 0xC4)),
+		CNameToCol("Black", CRGBA(0x00, 0x00, 0x00)),
+		CNameToCol("BlanchedAlmond", CRGBA(0xFF, 0xEB, 0xCD)),
+		CNameToCol("Blue", CRGBA(0x00, 0x00, 0xFF)),
+		CNameToCol("BlueViolet", CRGBA(0x8A, 0x2B, 0xE2)),
+		CNameToCol("Brown", CRGBA(0xA5, 0x2A, 0x2A)),
+		CNameToCol("BurlyWood", CRGBA(0xDE, 0xB8, 0x87)),
+		CNameToCol("CadetBlue", CRGBA(0x5F, 0x9E, 0xA0)),
+		CNameToCol("Chartreuse", CRGBA(0x7F, 0xFF, 0x00)),
+		CNameToCol("Chocolate", CRGBA(0xD2, 0x69, 0x1E)),
+		CNameToCol("Coral", CRGBA(0xFF, 0x7F, 0x50)),
+		CNameToCol("CornflowerBlue", CRGBA(0x64, 0x95, 0xED)),
+		CNameToCol("Cornsilk", CRGBA(0xFF, 0xF8, 0xDC)),
+		CNameToCol("Crimson", CRGBA(0xDC, 0x14, 0x3C)),
+		CNameToCol("Cyan", CRGBA(0x00, 0xFF, 0xFF)),
+		CNameToCol("DarkBlue", CRGBA(0x00, 0x00, 0x8B)),
+		CNameToCol("DarkCyan", CRGBA(0x00, 0x8B, 0x8B)),
+		CNameToCol("DarkGoldenRod", CRGBA(0xB8, 0x86, 0x0B)),
+		CNameToCol("DarkGray", CRGBA(0xA9, 0xA9, 0xA9)),
+		CNameToCol("DarkGreen", CRGBA(0x00, 0x64, 0x00)),
+		CNameToCol("DarkKhaki", CRGBA(0xBD, 0xB7, 0x6B)),
+		CNameToCol("DarkMagenta", CRGBA(0x8B, 0x00, 0x8B)),
+		CNameToCol("DarkOliveGreen", CRGBA(0x55, 0x6B, 0x2F)),
+		CNameToCol("Darkorange", CRGBA(0xFF, 0x8C, 0x00)),
+		CNameToCol("DarkOrchid", CRGBA(0x99, 0x32, 0xCC)),
+		CNameToCol("DarkRed", CRGBA(0x8B, 0x00, 0x00)),
+		CNameToCol("DarkSalmon", CRGBA(0xE9, 0x96, 0x7A)),
+		CNameToCol("DarkSeaGreen", CRGBA(0x8F, 0xBC, 0x8F)),
+		CNameToCol("DarkSlateBlue", CRGBA(0x48, 0x3D, 0x8B)),
+		CNameToCol("DarkSlateGray", CRGBA(0x2F, 0x4F, 0x4F)),
+		CNameToCol("DarkTurquoise", CRGBA(0x00, 0xCE, 0xD1)),
+		CNameToCol("DarkViolet", CRGBA(0x94, 0x00, 0xD3)),
+		CNameToCol("DeepPink", CRGBA(0xFF, 0x14, 0x93)),
+		CNameToCol("DeepSkyBlue", CRGBA(0x00, 0xBF, 0xFF)),
+		CNameToCol("DimGray", CRGBA(0x69, 0x69, 0x69)),
+		CNameToCol("DodgerBlue", CRGBA(0x1E, 0x90, 0xFF)),
+		CNameToCol("Feldspar", CRGBA(0xD1, 0x92, 0x75)),
+		CNameToCol("FireBrick", CRGBA(0xB2, 0x22, 0x22)),
+		CNameToCol("FloralWhite", CRGBA(0xFF, 0xFA, 0xF0)),
+		CNameToCol("ForestGreen", CRGBA(0x22, 0x8B, 0x22)),
+		CNameToCol("Fuchsia", CRGBA(0xFF, 0x00, 0xFF)),
+		CNameToCol("Gainsboro", CRGBA(0xDC, 0xDC, 0xDC)),
+		CNameToCol("GhostWhite", CRGBA(0xF8, 0xF8, 0xFF)),
+		CNameToCol("Gold", CRGBA(0xFF, 0xD7, 0x00)),
+		CNameToCol("GoldenRod", CRGBA(0xDA, 0xA5, 0x20)),
+		CNameToCol("Gray", CRGBA(0x80, 0x80, 0x80)),
+		CNameToCol("Green", CRGBA(0x00, 0x80, 0x00)),
+		CNameToCol("GreenYellow", CRGBA(0xAD, 0xFF, 0x2F)),
+		CNameToCol("HoneyDew", CRGBA(0xF0, 0xFF, 0xF0)),
+		CNameToCol("HotPink", CRGBA(0xFF, 0x69, 0xB4)),
+		CNameToCol("IndianRed ", CRGBA(0xCD, 0x5C, 0x5C)),
+		CNameToCol("Indigo  ", CRGBA(0x4B, 0x00, 0x82)),
+		CNameToCol("Ivory", CRGBA(0xFF, 0xFF, 0xF0)),
+		CNameToCol("Khaki", CRGBA(0xF0, 0xE6, 0x8C)),
+		CNameToCol("Lavender", CRGBA(0xE6, 0xE6, 0xFA)),
+		CNameToCol("LavenderBlush", CRGBA(0xFF, 0xF0, 0xF5)),
+		CNameToCol("LawnGreen", CRGBA(0x7C, 0xFC, 0x00)),
+		CNameToCol("LemonChiffon", CRGBA(0xFF, 0xFA, 0xCD)),
+		CNameToCol("LightBlue", CRGBA(0xAD, 0xD8, 0xE6)),
+		CNameToCol("LightCoral", CRGBA(0xF0, 0x80, 0x80)),
+		CNameToCol("LightCyan", CRGBA(0xE0, 0xFF, 0xFF)),
+		CNameToCol("LightGoldenRodYellow", CRGBA(0xFA, 0xFA, 0xD2)),
+		CNameToCol("LightGrey", CRGBA(0xD3, 0xD3, 0xD3)),
+		CNameToCol("LightGreen", CRGBA(0x90, 0xEE, 0x90)),
+		CNameToCol("LightPink", CRGBA(0xFF, 0xB6, 0xC1)),
+		CNameToCol("LightSalmon", CRGBA(0xFF, 0xA0, 0x7A)),
+		CNameToCol("LightSeaGreen", CRGBA(0x20, 0xB2, 0xAA)),
+		CNameToCol("LightSkyBlue", CRGBA(0x87, 0xCE, 0xFA)),
+		CNameToCol("LightSlateBlue", CRGBA(0x84, 0x70, 0xFF)),
+		CNameToCol("LightSlateGray", CRGBA(0x77, 0x88, 0x99)),
+		CNameToCol("LightSteelBlue", CRGBA(0xB0, 0xC4, 0xDE)),
+		CNameToCol("LightYellow", CRGBA(0xFF, 0xFF, 0xE0)),
+		CNameToCol("Lime", CRGBA(0x00, 0xFF, 0x00)),
+		CNameToCol("LimeGreen", CRGBA(0x32, 0xCD, 0x32)),
+		CNameToCol("Linen", CRGBA(0xFA, 0xF0, 0xE6)),
+		CNameToCol("Magenta", CRGBA(0xFF, 0x00, 0xFF)),
+		CNameToCol("Maroon", CRGBA(0x80, 0x00, 0x00)),
+		CNameToCol("MediumAquaMarine", CRGBA(0x66, 0xCD, 0xAA)),
+		CNameToCol("MediumBlue", CRGBA(0x00, 0x00, 0xCD)),
+		CNameToCol("MediumOrchid", CRGBA(0xBA, 0x55, 0xD3)),
+		CNameToCol("MediumPurple", CRGBA(0x93, 0x70, 0xD8)),
+		CNameToCol("MediumSeaGreen", CRGBA(0x3C, 0xB3, 0x71)),
+		CNameToCol("MediumSlateBlue", CRGBA(0x7B, 0x68, 0xEE)),
+		CNameToCol("MediumSpringGreen", CRGBA(0x00, 0xFA, 0x9A)),
+		CNameToCol("MediumTurquoise", CRGBA(0x48, 0xD1, 0xCC)),
+		CNameToCol("MediumVioletRed", CRGBA(0xC7, 0x15, 0x85)),
+		CNameToCol("MidnightBlue", CRGBA(0x19, 0x19, 0x70)),
+		CNameToCol("MintCream", CRGBA(0xF5, 0xFF, 0xFA)),
+		CNameToCol("MistyRose", CRGBA(0xFF, 0xE4, 0xE1)),
+		CNameToCol("Moccasin", CRGBA(0xFF, 0xE4, 0xB5)),
+		CNameToCol("NavajoWhite", CRGBA(0xFF, 0xDE, 0xAD)),
+		CNameToCol("Navy", CRGBA(0x00, 0x00, 0x80)),
+		CNameToCol("OldLace", CRGBA(0xFD, 0xF5, 0xE6)),
+		CNameToCol("Olive", CRGBA(0x80, 0x80, 0x00)),
+		CNameToCol("OliveDrab", CRGBA(0x6B, 0x8E, 0x23)),
+		CNameToCol("Orange", CRGBA(0xFF, 0xA5, 0x00)),
+		CNameToCol("OrangeRed", CRGBA(0xFF, 0x45, 0x00)),
+		CNameToCol("Orchid", CRGBA(0xDA, 0x70, 0xD6)),
+		CNameToCol("PaleGoldenRod", CRGBA(0xEE, 0xE8, 0xAA)),
+		CNameToCol("PaleGreen", CRGBA(0x98, 0xFB, 0x98)),
+		CNameToCol("PaleTurquoise", CRGBA(0xAF, 0xEE, 0xEE)),
+		CNameToCol("PaleVioletRed", CRGBA(0xD8, 0x70, 0x93)),
+		CNameToCol("PapayaWhip", CRGBA(0xFF, 0xEF, 0xD5)),
+		CNameToCol("PeachPuff", CRGBA(0xFF, 0xDA, 0xB9)),
+		CNameToCol("Peru", CRGBA(0xCD, 0x85, 0x3F)),
+		CNameToCol("Pink", CRGBA(0xFF, 0xC0, 0xCB)),
+		CNameToCol("Plum", CRGBA(0xDD, 0xA0, 0xDD)),
+		CNameToCol("PowderBlue", CRGBA(0xB0, 0xE0, 0xE6)),
+		CNameToCol("Purple", CRGBA(0x80, 0x00, 0x80)),
+		CNameToCol("Red", CRGBA(0xFF, 0x00, 0x00)),
+		CNameToCol("RosyBrown", CRGBA(0xBC, 0x8F, 0x8F)),
+		CNameToCol("RoyalBlue", CRGBA(0x41, 0x69, 0xE1)),
+		CNameToCol("SaddleBrown", CRGBA(0x8B, 0x45, 0x13)),
+		CNameToCol("Salmon", CRGBA(0xFA, 0x80, 0x72)),
+		CNameToCol("SandyBrown", CRGBA(0xF4, 0xA4, 0x60)),
+		CNameToCol("SeaGreen", CRGBA(0x2E, 0x8B, 0x57)),
+		CNameToCol("SeaShell", CRGBA(0xFF, 0xF5, 0xEE)),
+		CNameToCol("Sienna", CRGBA(0xA0, 0x52, 0x2D)),
+		CNameToCol("Silver", CRGBA(0xC0, 0xC0, 0xC0)),
+		CNameToCol("SkyBlue", CRGBA(0x87, 0xCE, 0xEB)),
+		CNameToCol("SlateBlue", CRGBA(0x6A, 0x5A, 0xCD)),
+		CNameToCol("SlateGray", CRGBA(0x70, 0x80, 0x90)),
+		CNameToCol("Snow", CRGBA(0xFF, 0xFA, 0xFA)),
+		CNameToCol("SpringGreen", CRGBA(0x00, 0xFF, 0x7F)),
+		CNameToCol("SteelBlue", CRGBA(0x46, 0x82, 0xB4)),
+		CNameToCol("Tan", CRGBA(0xD2, 0xB4, 0x8C)),
+		CNameToCol("Teal", CRGBA(0x00, 0x80, 0x80)),
+		CNameToCol("Thistle", CRGBA(0xD8, 0xBF, 0xD8)),
+		CNameToCol("Tomato", CRGBA(0xFF, 0x63, 0x47)),
+		CNameToCol("Turquoise", CRGBA(0x40, 0xE0, 0xD0)),
+		CNameToCol("Violet", CRGBA(0xEE, 0x82, 0xEE)),
+		CNameToCol("VioletRed", CRGBA(0xD0, 0x20, 0x90)),
+		CNameToCol("Wheat", CRGBA(0xF5, 0xDE, 0xB3)),
+		CNameToCol("White", CRGBA(0xFF, 0xFF, 0xFF)),
+		CNameToCol("WhiteSmoke", CRGBA(0xF5, 0xF5, 0xF5)),
+		CNameToCol("Yellow", CRGBA(0xFF, 0xFF, 0x00)),
+		CNameToCol("YellowGreen", CRGBA(0x9A, 0xCD, 0x32))
+	};
+
+	// scan a color from a HTML form (#rrggbb format)
+	bool scanHTMLColor(const char *src, CRGBA &dest)
+	{
+		if (!src || *src == '\0') return false;
+		if (*src == '#')
+		{
+			++src;
+			if (strlen(src) == 3 || strlen(src) == 4)
+			{
+				bool hasAlpha = (strlen(src) == 4);
+				// check RGB for valid hex
+				if (isHexa(src[0]) && isHexa(src[1]) && isHexa(src[2]))
+				{
+					// check optional A for valid hex
+					if (hasAlpha && !isHexa(src[3])) return false;
+
+					dest.R = convertHexa(src[0]);
+					dest.G = convertHexa(src[1]);
+					dest.B = convertHexa(src[2]);
+
+					dest.R = dest.R << 4 | dest.R;
+					dest.G = dest.G << 4 | dest.G;
+					dest.B = dest.B << 4 | dest.B;
+
+					if (hasAlpha)
+					{
+						dest.A = convertHexa(src[3]);
+						dest.A = dest.A << 4 | dest.A;
+					}
+					else
+						dest.A = 255;
+
+					return true;
+				}
+
+				return false;
+			}
+
+			CRGBA result;
+			src = scanColorComponent(src, result.R); if (!src) return false;
+			src = scanColorComponent(src, result.G); if (!src) return false;
+			src = scanColorComponent(src, result.B); if (!src) return false;
+			src = scanColorComponent(src, result.A);
+			if (!src)
+			{
+				// Alpha is optional
+				result.A = 255;
+			}
+			dest = result;
+			return true;
+		}
+
+		// TODO: CSS Colors Level 4 support
+		// Whitespace syntax, aliases: rgb == rgba, hsl == hsla
+		// rgb(51 170 51 / 0.4)    /* 40% opaque green */ 
+		// rgb(51 170 51 / 40%)    /* 40% opaque green */ 
+
+		if (strnicmp(src, "rgb(", 4) == 0 || strnicmp(src, "rgba(", 5) == 0)
+		{
+			src += 4;
+			if (*src == '(') src++;
+
+			std::vector<std::string> parts;
+			NLMISC::splitString(src, ",", parts);
+			if (parts.size() >= 3)
+			{
+				CRGBA result;
+				sint tmpv;
+				float tmpf;
+
+				// R
+				if (getPercentage(tmpv, tmpf, parts[0].c_str())) tmpv = 255 * tmpf;
+				clamp(tmpv, 0, 255);
+				result.R = tmpv;
+
+				// G
+				if (getPercentage(tmpv, tmpf, parts[1].c_str())) tmpv = 255 * tmpf;
+				clamp(tmpv, 0, 255);
+				result.G = tmpv;
+
+				// B
+				if (getPercentage(tmpv, tmpf, parts[2].c_str())) tmpv = 255 * tmpf;
+				clamp(tmpv, 0, 255);
+				result.B = tmpv;
+
+				// A
+				if (parts.size() == 4)
+				{
+					if (!fromString(parts[3], tmpf)) return false;
+					if (parts[3].find_first_of("%") != std::string::npos)
+						tmpf /= 100;
+
+					tmpv = 255 * tmpf;
+					clamp(tmpv, 0, 255);
+					result.A = tmpv;
+				}
+				else
+					result.A = 255;
+
+				dest = result;
+				return true;
+			}
+
+			return false;
+		}
+
+		if (strnicmp(src, "hsl(", 4) == 0 || strnicmp(src, "hsla(", 5) == 0)
+		{
+			src += 4;
+			if (*src == '(') src++;
+
+			std::vector<std::string> parts;
+			NLMISC::splitString(src, ",", parts);
+			if (parts.size() >= 3)
+			{
+				sint tmpv;
+				float h, s, l;
+				// hue
+				if (!fromString(parts[0], tmpv)) return false;
+				tmpv = ((tmpv % 360) + 360) % 360;
+				h = (float) tmpv / 360.0f;
+
+				// saturation
+				if (!getPercentage(tmpv, s, parts[1].c_str())) return false;
+				clamp(s, 0.0f, 1.0f);
+
+				// lightness
+				if (!getPercentage(tmpv, l, parts[2].c_str())) return false;
+				clamp(l, 0.0f, 1.0f);
+
+				CRGBA result;
+				hslToRgb(h, s, l, result);
+
+				// A
+				if (parts.size() == 4)
+				{
+					float tmpf;
+					if (!fromString(parts[3], tmpf)) return false;
+					if (parts[3].find_first_of("%") != std::string::npos)
+						tmpf /= 100;
+					clamp(tmpf, 0.0f, 1.0f);
+					result.A = 255 * tmpf;
+				}
+
+				dest = result;
+				return true;
+			}
+
+			return false;
+		}
+
+		{
+			// slow but should suffice for now
+			for(uint k = 0; k < sizeofarray(htmlColorNameToRGBA); ++k)
+			{
+				if (nlstricmp(src, htmlColorNameToRGBA[k].Name) == 0)
+				{
+					dest = htmlColorNameToRGBA[k].Color;
+					return true;
+				}
+			}
+			return false;
+		}
+	}
+
 	// ***************************************************************************
 
 	CRGBA getColor (const char *color)
@@ -381,6 +748,11 @@ namespace NLGUI
 		return dst;
 	}
 
+	std::string getRGBAString(const CRGBA &color)
+	{
+		return toString("rgba(%d, %d, %d, %.1f)", color.R, color.G, color.B, color.A / 255.f);
+	}
+
 	// update HTTPCookies list
 	static void receiveCookie(const char *nsformat, const std::string &domain, bool trusted)
 	{

code/nel/src/gui/libwww_types.cpp

@@ -784,6 +784,8 @@ static HTTag tags[HTML_ELEMENTS] = {
 	{ "U"	, gen_attr,	HTML_GEN_ATTRIBUTES },
 	{ "UL"	, ul_attr,	HTML_UL_ATTRIBUTES },
 	{ "VAR"	, gen_attr,	HTML_GEN_ATTRIBUTES },
+	//
+	{ "LUA" , gen_attr, HTML_GEN_ATTRIBUTES },
 };
 
 static SGML_dtd HTMLP_dtd = {

code/ryzom/client/src/interface_v3/group_quick_help.cpp

@@ -25,6 +25,7 @@
 #include "nel/gui/group_list.h"
 #include "nel/gui/group_paragraph.h"
 #include "nel/gui/libwww.h"
+#include "nel/gui/html_element.h"
 #include "interface_manager.h"
 #include "nel/gui/action_handler.h"
 #include "nel/misc/xml_auto_ptr.h"
@@ -215,33 +216,29 @@ void CGroupQuickHelp::setGroupTextSize (CInterfaceGroup *group, bool selected)
 
 extern CActionsContext ActionsContext;
 
-void CGroupQuickHelp::beginElement (uint element_number, const std::vector<bool> &present, const std::vector<const char *>&value)
+void CGroupQuickHelp::beginElement(CHtmlElement &elm)
 {
-	CGroupHTML::beginElement (element_number, present, value);
+	CGroupHTML::beginElement (elm);
 
 	// Paragraph ?
-	switch(element_number)
+	switch(elm.ID)
 	{
 	case HTML_A:
 			// Quick help
-			if (_TrustedDomain && present[MY_HTML_A_Z_ACTION_SHORTCUT] && value[MY_HTML_A_Z_ACTION_SHORTCUT])
+			if (_TrustedDomain && elm.hasNonEmptyAttribute("z_action_shortcut"))
 			{
 				// Get the action category
-				string category;
+				string category = elm.getAttribute("z_action_category");
-				if (present[MY_HTML_A_Z_ACTION_CATEGORY] && value[MY_HTML_A_Z_ACTION_CATEGORY])
-					category = value[MY_HTML_A_Z_ACTION_CATEGORY];
 
 				// Get the action params
-				string params;
+				string params = elm.getAttribute("z_action_params");
-				if (present[MY_HTML_A_Z_ACTION_PARAMS] && value[MY_HTML_A_Z_ACTION_PARAMS])
-					params = value[MY_HTML_A_Z_ACTION_PARAMS];
 
 				// Get the action descriptor
 				CActionsManager *actionManager = ActionsContext.getActionsManager (category);
 				if (actionManager)
 				{
 					const CActionsManager::TActionComboMap &actionCombo = actionManager->getActionComboMap ();
-					CActionsManager::TActionComboMap::const_iterator ite = actionCombo.find (CAction::CName (value[MY_HTML_A_Z_ACTION_SHORTCUT], params.c_str()));
+					CActionsManager::TActionComboMap::const_iterator ite = actionCombo.find (CAction::CName (elm.getAttribute("z_action_shortcut").c_str(), params.c_str()));
 					if (ite != actionCombo.end())
 					{
 						addString (ite->second.toUCString());
@@ -252,7 +249,7 @@ void CGroupQuickHelp::beginElement (uint element_number, const std::vector<bool>
 
 	case HTML_P:
 		// Get the action name
-		if (present[MY_HTML_P_QUICK_HELP_EVENTS])
+		if (elm.hasAttribute("quick_help_events"))
 		{
 			// This page is a quick help
 			_IsQuickHelp = true;
@@ -260,10 +257,8 @@ void CGroupQuickHelp::beginElement (uint element_number, const std::vector<bool>
 			_Steps.push_back (CStep());
 			CStep &step = _Steps.back();
 
-			if (value[MY_HTML_P_QUICK_HELP_EVENTS])
-			{
 			// Get the event names
-				string events = value[MY_HTML_P_QUICK_HELP_EVENTS];
+			string events = elm.getAttribute("quick_help_events");
 			if (!events.empty())
 			{
 				uint first = 0;
@@ -279,19 +274,12 @@ void CGroupQuickHelp::beginElement (uint element_number, const std::vector<bool>
 					first = (uint)last+1;
 				}
 			}
-			}
 
 			// Get the condition
-			if (present[MY_HTML_P_QUICK_HELP_CONDITION] && value[MY_HTML_P_QUICK_HELP_CONDITION])
+			step.Condition = elm.getAttribute("quick_help_condition");
-			{
-				step.Condition = value[MY_HTML_P_QUICK_HELP_CONDITION];
-			}
 
 			// Get the action handlers to run
-			if (present[MY_HTML_P_QUICK_HELP_LINK] && value[MY_HTML_P_QUICK_HELP_LINK])
+			step.URL = elm.getAttribute("quick_help_link");
-			{
-				step.URL = value[MY_HTML_P_QUICK_HELP_LINK];
-			}
 		}
 		break;
 	}

code/ryzom/client/src/interface_v3/group_quick_help.h

@@ -23,7 +23,6 @@
 #include "nel/misc/types_nl.h"
 #include "nel/gui/group_html.h"
 
-
 /**
  * Quick help group
  * \author Cyril 'Hulud' Corvazier
@@ -48,7 +47,7 @@ private:
 	virtual void updateCoords();
 
 	// From CGroupHTML
-	virtual void beginElement (uint element_number, const std::vector<bool> &present, const std::vector<const char *>&value);
+	virtual void beginElement (NLGUI::CHtmlElement &elm);
 	virtual void endBuild ();
 	virtual void browse (const char *url);
 	virtual std::string	home();

code/ryzom/client/src/interface_v3/lua_ihm_ryzom.cpp

@@ -3271,7 +3271,6 @@ void	CLuaIHMRyzom::browseNpcWebPage(const std::string &htmlId, const std::string
 		groupHtml->setTimeout((float)std::max(0.0, timeout));
 
 		// Browse the url
-		groupHtml->clean();
 		groupHtml->browse(url.c_str());
 		// Set top of the page
 		CCtrlScroll *pScroll = groupHtml->getScrollBar();