X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/daa616fca06ce77df132d31eda6d1f829b449aad..445365141a2b028acbd779aa352bf664d930cfb5:/include/wx/html/htmlpars.h diff --git a/include/wx/html/htmlpars.h b/include/wx/html/htmlpars.h index 238a86c704..a7f067b5a1 100644 --- a/include/wx/html/htmlpars.h +++ b/include/wx/html/htmlpars.h @@ -20,12 +20,25 @@ #include "wx/html/htmltag.h" #include "wx/filesys.h" +#include "wx/hash.h" +#include "wx/fontenc.h" class WXDLLEXPORT wxMBConv; class WXDLLEXPORT wxHtmlParser; class WXDLLEXPORT wxHtmlTagHandler; class WXDLLEXPORT wxHtmlEntitiesParser; +class wxHtmlTextPieces; +class wxHtmlParserState; + + +enum wxHtmlURLType +{ + wxHTML_URL_PAGE, + wxHTML_URL_IMAGE, + wxHTML_URL_OTHER +}; + // This class handles generic parsing of HTML document : it scans // the document and divide it into blocks of tags (where one block // consists of starting and ending tag and of text between these @@ -43,6 +56,10 @@ public: wxFileSystem* GetFS() const { return m_FS; } + // Opens file if the parser is allowed to open given URL (may be forbidden + // for security reasons) + virtual wxFSFile *OpenURL(wxHtmlURLType type, const wxString& url) const; + // You can simply call this method when you need parsed output. // This method does these things: // 1. call InitParser(source); @@ -59,7 +76,10 @@ public: // Parses the m_Source from begin_pos to end_pos-1. // (in noparams version it parses whole m_Source) void DoParsing(int begin_pos, int end_pos); - inline void DoParsing() {DoParsing(0, m_Source.Length());}; + void DoParsing(); + + // Returns pointer to the tag at parser's current position + wxHtmlTag *GetCurrentTag() const { return m_CurTag; } // Returns product of parsing // Returned value is result of parsing of the part. The type of this result @@ -88,14 +108,30 @@ public: wxString* GetSource() {return &m_Source;} void SetSource(const wxString& src); + + // Sets HTML source and remebers current parser's state so that it can + // later be restored. This is useful for on-line modifications of + // HTML source (for example,
handler replaces spaces with + // and newlines with
) + virtual void SetSourceAndSaveState(const wxString& src); + // Restores parser's state from stack or returns FALSE if the stack is + // empty + virtual bool RestoreState(); protected: + // DOM structure + void CreateDOMTree(); + void DestroyDOMTree(); + void CreateDOMSubTree(wxHtmlTag *cur, + int begin_pos, int end_pos, + wxHtmlTagsCache *cache); + // Adds text to the output. // This is called from Parse() and must be overriden in derived classes. // txt is not guaranteed to be only one word. It is largest continuous part of text // (= not broken by tags) // NOTE : using char* because of speed improvements - virtual void AddText(const char* txt) = 0; + virtual void AddText(const wxChar* txt) = 0; // Adds tag and proceeds it. Parse() may (and usually is) called from this method. // This is called from Parse() and may be overriden. @@ -108,13 +144,16 @@ protected: wxHtmlEntitiesParser *GetEntitiesParser() const { return m_entitiesParser; } protected: - // source being parsed - wxString m_Source; - - // tags cache, used during parsing. - wxHtmlTagsCache *m_Cache; - wxHashTable m_HandlersHash; + // DOM tree: + wxHtmlTag *m_CurTag; + wxHtmlTag *m_Tags; + wxHtmlTextPieces *m_TextPieces; + size_t m_CurTextPiece; + wxString m_Source; + + wxHtmlParserState *m_SavedStates; + // handlers that handle particular tags. The table is accessed by // key = tag's name. // This attribute MUST be filled by derived class otherwise it would @@ -125,6 +164,7 @@ protected: // m_HandlersList is list of all handlers and it is guaranteed to contain // only one reference to each handler instance. wxList m_HandlersList; + wxHashTable m_HandlersHash; // class for opening files (file system) wxFileSystem *m_FS; @@ -197,11 +237,14 @@ public: // Parses entities in input and replaces them with respective characters // (with respect to output encoding) wxString Parse(const wxString& input); - -protected: + + // Returns character for given entity or 0 if the enity is unknown wxChar GetEntityChar(const wxString& entity); + + // Returns character that represents given Unicode code wxChar GetCharForCode(unsigned code); +protected: #if wxUSE_WCHAR_T && !wxUSE_UNICODE wxMBConv *m_conv; wxFontEncoding m_encoding;