X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/3ef01ce5e38bb97235b6c8647bf76d7791ed11b6..eddb32504316bfc92624a2a9b7cc62fd4543face:/include/wx/html/htmlwin.h diff --git a/include/wx/html/htmlwin.h b/include/wx/html/htmlwin.h index cb339ec0b3..0e4fab1eda 100644 --- a/include/wx/html/htmlwin.h +++ b/include/wx/html/htmlwin.h @@ -2,227 +2,348 @@ // Name: htmlwin.h // Purpose: wxHtmlWindow class for parsing & displaying HTML // Author: Vaclav Slavik +// RCS-ID: $Id$ // Copyright: (c) 1999 Vaclav Slavik // Licence: wxWindows Licence ///////////////////////////////////////////////////////////////////////////// -#ifndef __HTMLWIN_H__ -#define __HTMLWIN_H__ +#ifndef _WX_HTMLWIN_H_ +#define _WX_HTMLWIN_H_ -#ifdef __GNUG__ -#pragma interface +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) +#pragma interface "htmlwin.h" #endif #include "wx/defs.h" #if wxUSE_HTML -#include -#include -#include -#include -#include -#include -#include -#include +#include "wx/window.h" +#include "wx/scrolwin.h" +#include "wx/config.h" +#include "wx/html/winpars.h" +#include "wx/html/htmlcell.h" +#include "wx/filesys.h" +#include "wx/html/htmlfilt.h" +#include "wx/filename.h" +class wxHtmlProcessor; +class wxHtmlWinModule; +class wxHtmlHistoryArray; +class wxHtmlProcessorList; +class WXDLLIMPEXP_HTML wxHtmlWinAutoScrollTimer; -//-------------------------------------------------------------------------------- -// wxHtmlWindow -// (This is probably the only class you will directly use.) -// Purpose of this class is to display HTML page (either local -// file or downloaded via HTTP protocol) in a window. Width -// of window is constant - given in constructor - virtual height -// is changed dynamicly depending on page size. -// Once the window is created you can set it's content by calling -// SetPage(text) or LoadPage(filename). -//-------------------------------------------------------------------------------- +// wxHtmlWindow flags: +#define wxHW_SCROLLBAR_NEVER 0x0002 +#define wxHW_SCROLLBAR_AUTO 0x0004 +#define wxHW_NO_SELECTION 0x0008 -// item of history list -class WXDLLEXPORT HtmlHistoryItem : public wxObject -{ - private: - wxString m_Page; - wxString m_Anchor; - int m_Pos; - - public: - HtmlHistoryItem(const wxString& p, const wxString& a) {m_Page = p, m_Anchor = a, m_Pos = 0;} - int GetPos() const {return m_Pos;} - void SetPos(int p) {m_Pos = p;} - const wxString& GetPage() const {return m_Page;} - const wxString& GetAnchor() const {return m_Anchor;} -}; - -#undef WXDLLEXPORTLOCAL -#define WXDLLEXPORTLOCAL WXDLLEXPORT - // ?? Don't know why - but Allen Van Sickel reported it to fix problems with DLL +#define wxHW_DEFAULT_STYLE wxHW_SCROLLBAR_AUTO -WX_DECLARE_OBJARRAY(HtmlHistoryItem, HtmlHistoryArray); -#undef WXDLLEXPORTLOCAL -#define WXDLLEXPORTLOCAL +// enums for wxHtmlWindow::OnOpeningURL +enum wxHtmlOpeningStatus +{ + wxHTML_OPEN, + wxHTML_BLOCK, + wxHTML_REDIRECT +}; +// ---------------------------------------------------------------------------- +// wxHtmlWindow +// (This is probably the only class you will directly use.) +// Purpose of this class is to display HTML page (either local +// file or downloaded via HTTP protocol) in a window. Width of +// window is constant - given in constructor - virtual height +// is changed dynamicly depending on page size. Once the +// window is created you can set it's content by calling +// SetPage(text) or LoadPage(filename). +// ---------------------------------------------------------------------------- -class WXDLLEXPORT wxHtmlWindow : public wxScrolledWindow +class WXDLLIMPEXP_HTML wxHtmlWindow : public wxScrolledWindow { DECLARE_DYNAMIC_CLASS(wxHtmlWindow) + friend class wxHtmlWinModule; + +public: + wxHtmlWindow() { Init(); } + wxHtmlWindow(wxWindow *parent, wxWindowID id = -1, + const wxPoint& pos = wxDefaultPosition, + const wxSize& size = wxDefaultSize, + long style = wxHW_DEFAULT_STYLE, + const wxString& name = wxT("htmlWindow")) + { + Init(); + Create(parent, id, pos, size, style, name); + } + ~wxHtmlWindow(); + + bool Create(wxWindow *parent, wxWindowID id = -1, + const wxPoint& pos = wxDefaultPosition, + const wxSize& size = wxDefaultSize, + long style = wxHW_SCROLLBAR_AUTO, + const wxString& name = wxT("htmlWindow")); + + // Set HTML page and display it. !! source is HTML document itself, + // it is NOT address/filename of HTML document. If you want to + // specify document location, use LoadPage() istead + // Return value : FALSE if an error occured, TRUE otherwise + bool SetPage(const wxString& source); + + // Append to current page + bool AppendToPage(const wxString& source); + + // Load HTML page from given location. Location can be either + // a) /usr/wxGTK2/docs/html/wx.htm + // b) http://www.somewhere.uk/document.htm + // c) ftp://ftp.somesite.cz/pub/something.htm + // In case there is no prefix (http:,ftp:), the method + // will try to find it itself (1. local file, then http or ftp) + // After the page is loaded, the method calls SetPage() to display it. + // Note : you can also use path relative to previously loaded page + // Return value : same as SetPage + virtual bool LoadPage(const wxString& location); + + // Loads HTML page from file + bool LoadFile(const wxFileName& filename); + + // Returns full location of opened page + wxString GetOpenedPage() const {return m_OpenedPage;} + // Returns anchor within opened page + wxString GetOpenedAnchor() const {return m_OpenedAnchor;} + // Returns of opened page or empty string otherwise + wxString GetOpenedPageTitle() const {return m_OpenedPageTitle;} + + // Sets frame in which page title will be displayed. Format is format of + // frame title, e.g. "HtmlHelp : %s". It must contain exactly one %s + void SetRelatedFrame(wxFrame* frame, const wxString& format); + wxFrame* GetRelatedFrame() const {return m_RelatedFrame;} + + // After(!) calling SetRelatedFrame, this sets statusbar slot where messages + // will be displayed. Default is -1 = no messages. + void SetRelatedStatusBar(int bar); + + // Sets fonts to be used when displaying HTML page. + void SetFonts(wxString normal_face, wxString fixed_face, + const int *sizes = NULL); + + // Sets space between text and window borders. + void SetBorders(int b) {m_Borders = b;} + + // Saves custom settings into cfg config. it will use the path 'path' + // if given, otherwise it will save info into currently selected path. + // saved values : things set by SetFonts, SetBorders. + virtual void ReadCustomization(wxConfigBase *cfg, wxString path = wxEmptyString); + // ... + virtual void WriteCustomization(wxConfigBase *cfg, wxString path = wxEmptyString); + + // Goes to previous/next page (in browsing history) + // Returns TRUE if successful, FALSE otherwise + bool HistoryBack(); + bool HistoryForward(); + bool HistoryCanBack(); + bool HistoryCanForward(); + // Resets history + void HistoryClear(); + + // Returns pointer to conteiners/cells structure. + // It should be used ONLY when printing + wxHtmlContainerCell* GetInternalRepresentation() const {return m_Cell;} + + // Adds input filter + static void AddFilter(wxHtmlFilter *filter); + + // Returns a pointer to the parser. + wxHtmlWinParser *GetParser() const { return m_Parser; } + + // Adds HTML processor to this instance of wxHtmlWindow: + void AddProcessor(wxHtmlProcessor *processor); + // Adds HTML processor to wxHtmlWindow class as whole: + static void AddGlobalProcessor(wxHtmlProcessor *processor); + + // -- Callbacks -- + + // Sets the title of the window + // (depending on the information passed to SetRelatedFrame() method) + virtual void OnSetTitle(const wxString& title); + + // Called when the mouse hovers over a cell: (x, y) are logical coords + // Default behaviour is to do nothing at all + virtual void OnCellMouseHover(wxHtmlCell *cell, wxCoord x, wxCoord y); + + // Called when user clicks on a cell. Default behavior is to call + // OnLinkClicked() if this cell corresponds to a hypertext link + virtual void OnCellClicked(wxHtmlCell *cell, + wxCoord x, wxCoord y, + const wxMouseEvent& event); + + // Called when user clicked on hypertext link. Default behavior is to + // call LoadPage(loc) + virtual void OnLinkClicked(const wxHtmlLinkInfo& link); + + // Called when wxHtmlWindow wants to fetch data from an URL (e.g. when + // loading a page or loading an image). The data are downloaded if and only if + // OnOpeningURL returns TRUE. If OnOpeningURL returns wxHTML_REDIRECT, + // it must set *redirect to the new URL + virtual wxHtmlOpeningStatus OnOpeningURL(wxHtmlURLType WXUNUSED(type), + const wxString& WXUNUSED(url), + wxString *WXUNUSED(redirect)) const + { return wxHTML_OPEN; } + +#if wxUSE_CLIPBOARD + // Helper functions to select parts of page: + void SelectWord(const wxPoint& pos); + void SelectLine(const wxPoint& pos); + void SelectAll(); +#endif - protected: - wxHtmlContainerCell *m_Cell; - // This is pointer to the first cell in parsed data. - // (Note: the first cell is usually top one = all other cells are sub-cells of this one) - wxHtmlWinParser *m_Parser; - // parser which is used to parse HTML input. - // Each wxHtmlWindow has it's own parser because sharing one global - // parser would be problematic (because of reentrancy) - wxString m_OpenedPage; - // contains name of actualy opened page or empty string if no page opened - wxString m_OpenedAnchor; - // contains name of current anchor within m_OpenedPage - wxFileSystem* m_FS; - // class for opening files (file system) - - wxFrame *m_RelatedFrame; - wxString m_TitleFormat; - int m_RelatedStatusBar; - // frame in which page title should be displayed & number of it's statusbar - // reserved for usage with this html window - - int m_Borders; - // borders (free space between text and window borders) - // defaults to 10 pixels. - - int m_Style; - - - private: - bool m_tmpMouseMoved; - // a flag indicated if mouse moved - // (if TRUE we will try to change cursor in last call to OnIdle) - bool m_tmpCanDraw; - // if FALSE contents of the window is not redrawn - // (in order to avoid ugly bliking) - - static wxList m_Filters; - // list of HTML filters - static wxHtmlFilter *m_DefaultFilter; - // this filter is used when no filter is able to read some file - - HtmlHistoryArray m_History; - int m_HistoryPos; - // browser history - bool m_HistoryOn; - // if this FLAG is false, items are not added to history - - public: - wxHtmlWindow() : wxScrolledWindow() {}; - wxHtmlWindow(wxWindow *parent, wxWindowID id = -1, - const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, - long style = wxHW_SCROLLBAR_AUTO, - const wxString& name = "htmlWindow"); - ~wxHtmlWindow(); - - bool SetPage(const wxString& source); - // Set HTML page and display it. !! source is HTML document itself, - // it is NOT address/filename of HTML document. If you want to - // specify document location, use LoadPage() istead - // Return value : FALSE if an error occured, TRUE otherwise - - bool LoadPage(const wxString& location); - // Load HTML page from given location. Location can be either - // a) /usr/wxGTK2/docs/html/wx.htm - // b) http://www.somewhere.uk/document.htm - // c) ftp://ftp.somesite.cz/pub/something.htm - // In case there is no prefix (http:,ftp:), the method - // will try to find it itself (1. local file, then http or ftp) - // After the page is loaded, the method calls SetPage() to display it. - // Note : you can also use path relative to previously loaded page - // Return value : same as SetPage - - wxString GetOpenedPage() const {return m_OpenedPage;} - // Returns full location of opened page - - void SetRelatedFrame(wxFrame* frame, const wxString& format); - // sets frame in which page title will be displayed. Format is format of - // frame title, e.g. "HtmlHelp : %s". It must contain exactly one %s - wxFrame* GetRelatedFrame() const {return m_RelatedFrame;} - - void SetRelatedStatusBar(int bar); - // after(!) calling SetRelatedFrame, this sets statusbar slot where messages - // will be displayed. Default is -1 = no messages. - - void SetFonts(wxString normal_face, int normal_italic_mode, wxString fixed_face, int fixed_italic_mode, int *sizes); - // sets fonts to be used when displaying HTML page. - // *_italic_mode can be either wxSLANT or wxITALIC - - void SetTitle(const wxString& title); - // Sets the title of the window - // (depending on the information passed to SetRelatedFrame() method) - - void SetBorders(int b) {m_Borders = b;} - // Sets space between text and window borders. - - virtual void ReadCustomization(wxConfigBase *cfg, wxString path = wxEmptyString); - // saves custom settings into cfg config. it will use the path 'path' - // if given, otherwise it will save info into currently selected path. - // saved values : things set by SetFonts, SetBorders. - virtual void WriteCustomization(wxConfigBase *cfg, wxString path = wxEmptyString); - // ... - - bool HistoryBack(); - bool HistoryForward(); - // Goes to previous/next page (in browsing history) - // Returns TRUE if successful, FALSE otherwise - void HistoryClear(); - // Resets history - - wxHtmlContainerCell* GetInternalRepresentation() const {return m_Cell;} - // Returns pointer to conteiners/cells structure. - // It should be used ONLY when printing - - static void AddFilter(wxHtmlFilter *filter); - // Adds input filter - - virtual void OnLinkClicked(const wxString& link); - // called when users clicked on hypertext link. Default behavior is to - // call LoadPage(loc) - - static void CleanUpStatics(); - // cleans static variables - - wxHtmlWinParser *GetParser() const { return m_Parser; } - // return a pointer to the parser. - - protected: - bool ScrollToAnchor(const wxString& anchor); - // Scrolls to anchor of this name. (Anchor is #news - // or #features etc. it is part of address sometimes: - // http://www.ms.mff.cuni.cz/~vsla8348/wxhtml/index.html#news) - // Return value : TRUE if anchor exists, FALSE otherwise - - void CreateLayout(); - // prepare layout (= fill m_PosX, m_PosY for fragments) based on actual size of - // window. This method also setup scrollbars - - void OnDraw(wxDC& dc); - void OnSize(wxSizeEvent& event); - void OnMouseEvent(wxMouseEvent& event); - void OnIdle(wxIdleEvent& event); - void OnKeyDown(wxKeyEvent& event); - - virtual wxHtmlFilter *GetDefaultFilter() {return new wxHtmlFilterPlainText;} - // returns new filter (will be stored into m_DefaultFilter variable) + virtual void ApplyParentThemeBackground(const wxColour& WXUNUSED(bg)) + { /* do nothing */ } + +protected: + void Init(); + + // Scrolls to anchor of this name. (Anchor is #news + // or #features etc. it is part of address sometimes: + // http://www.ms.mff.cuni.cz/~vsla8348/wxhtml/index.html#news) + // Return value : TRUE if anchor exists, FALSE otherwise + bool ScrollToAnchor(const wxString& anchor); + + // Prepares layout (= fill m_PosX, m_PosY for fragments) based on + // actual size of window. This method also setup scrollbars + void CreateLayout(); + + void OnEraseBackground(wxEraseEvent& event); + void OnPaint(wxPaintEvent& event); + void OnSize(wxSizeEvent& event); + void OnMouseMove(wxMouseEvent& event); + void OnMouseDown(wxMouseEvent& event); + void OnMouseUp(wxMouseEvent& event); +#if wxUSE_CLIPBOARD + void OnKeyUp(wxKeyEvent& event); + void OnDoubleClick(wxMouseEvent& event); + void OnCopy(wxCommandEvent& event); + void OnMouseEnter(wxMouseEvent& event); + void OnMouseLeave(wxMouseEvent& event); +#endif // wxUSE_CLIPBOARD + + virtual void OnInternalIdle(); + + // Returns new filter (will be stored into m_DefaultFilter variable) + virtual wxHtmlFilter *GetDefaultFilter() {return new wxHtmlFilterPlainText;} + + // cleans static variables + static void CleanUpStatics(); + + // Returns true if text selection is enabled (wxClipboard must be available + // and wxHW_NO_SELECTION not used) + bool IsSelectionEnabled() const; + + enum ClipboardType + { + Primary, + Secondary + }; + + // Copies selection to clipboard if the clipboard support is available + // + // returns true if anything was copied to clipboard, false otherwise + bool CopySelection(ClipboardType t = Secondary); + +#if wxUSE_CLIPBOARD + // Convert selection to text: + wxString SelectionToText(); + + // Automatic scrolling during selection: + void StopAutoScrolling(); +#endif // wxUSE_CLIPBOARD + +protected: + // This is pointer to the first cell in parsed data. (Note: the first cell + // is usually top one = all other cells are sub-cells of this one) + wxHtmlContainerCell *m_Cell; + // parser which is used to parse HTML input. + // Each wxHtmlWindow has it's own parser because sharing one global + // parser would be problematic (because of reentrancy) + wxHtmlWinParser *m_Parser; + // contains name of actualy opened page or empty string if no page opened + wxString m_OpenedPage; + // contains name of current anchor within m_OpenedPage + wxString m_OpenedAnchor; + // contains title of actualy opened page or empty string if no <TITLE> tag + wxString m_OpenedPageTitle; + // class for opening files (file system) + wxFileSystem* m_FS; + + wxFrame *m_RelatedFrame; + wxString m_TitleFormat; + // frame in which page title should be displayed & number of it's statusbar + // reserved for usage with this html window + int m_RelatedStatusBar; + + // borders (free space between text and window borders) + // defaults to 10 pixels. + int m_Borders; + + int m_Style; + + // current text selection or NULL + wxHtmlSelection *m_selection; + + // true if the user is dragging mouse to select text + bool m_makingSelection; + +#if wxUSE_CLIPBOARD + // time of the last doubleclick event, used to detect tripleclicks + // (tripleclicks are used to select whole line): + wxLongLong m_lastDoubleClick; + + // helper class to automatically scroll the window if the user is selecting + // text and the mouse leaves wxHtmlWindow: + wxHtmlWinAutoScrollTimer *m_timerAutoScroll; +#endif // wxUSE_CLIPBOARD + +private: + // window content for double buffered rendering: + wxBitmap *m_backBuffer; + + // variables used when user is selecting text + wxPoint m_tmpSelFromPos; + wxHtmlCell *m_tmpSelFromCell; + + // a flag indicated if mouse moved + // (if TRUE we will try to change cursor in last call to OnIdle) + bool m_tmpMouseMoved; + // contains last link name + wxHtmlLinkInfo *m_tmpLastLink; + // contains the last (terminal) cell which contained the mouse + wxHtmlCell *m_tmpLastCell; + // if >0 contents of the window is not redrawn + // (in order to avoid ugly blinking) + int m_tmpCanDrawLocks; + + // list of HTML filters + static wxList m_Filters; + // this filter is used when no filter is able to read some file + static wxHtmlFilter *m_DefaultFilter; + + wxHtmlHistoryArray *m_History; + // browser history + int m_HistoryPos; + // if this FLAG is false, items are not added to history + bool m_HistoryOn; + + // html processors array: + wxHtmlProcessorList *m_Processors; + static wxHtmlProcessorList *m_GlobalProcessors; DECLARE_EVENT_TABLE() + DECLARE_NO_COPY_CLASS(wxHtmlWindow) }; +#endif // wxUSE_HTML -#endif // __HTMLWIN_H__ - -#endif - - +#endif // _WX_HTMLWIN_H_