// Author: Vaclav Slavik
// RCS-ID: $Id$
// Copyright: (c) 1999 Vaclav Slavik
-// Licence: wxWindows Licence
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#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"
#include "wx/window.h"
#include "wx/scrolwin.h"
#include "wx/config.h"
-#include "wx/treectrl.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
-{
- 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;}
-
- private:
- wxString m_Page;
- wxString m_Anchor;
- int m_Pos;
-};
-
+#define wxHW_DEFAULT_STYLE wxHW_SCROLLBAR_AUTO
-WX_DECLARE_EXPORTED_OBJARRAY(HtmlHistoryItem, HtmlHistoryArray);
+// 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 <TITLE> 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;}
+
+#if wxUSE_STATUSBAR
+ // After(!) calling SetRelatedFrame, this sets statusbar slot where messages
+ // will be displayed. Default is -1 = no messages.
+ void SetRelatedStatusBar(int bar);
+#endif // wxUSE_STATUSBAR
+
+ // Sets fonts to be used when displaying HTML page.
+ void SetFonts(wxString normal_face, wxString fixed_face,
+ const int *sizes = NULL);
+
+ // Sets font sizes to be relative to the given size or the system default size
+ void NormalizeFontSizes(int size=-1);
+
+ // 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();
+
+ // Convert selection to text:
+ wxString SelectionToText() { return DoSelectionToText(m_selection); }
+
+ // Converts current page to text:
+ wxString ToText();
+#endif
- 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
-
- wxString GetOpenedPageTitle() const {return m_OpenedPageTitle;}
- // Returns <TITLE> of opened page or empty string otherwise
-
- 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, wxString fixed_face, const int *sizes);
- // sets fonts to be used when displaying HTML page.
-
- virtual void OnSetTitle(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 wxHtmlLinkInfo& 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)
-
-
- 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
- wxString m_OpenedPageTitle;
- // contains title of actualy opened page or empty string if no <TITLE> tag
- 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)
- wxHtmlLinkInfo *m_tmpLastLink;
- // contains last link name
- int m_tmpCanDrawLocks;
- // if >0 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
-
+ 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
+ // Automatic scrolling during selection:
+ void StopAutoScrolling();
+#endif // wxUSE_CLIPBOARD
+
+protected:
+ wxString DoSelectionToText(wxHtmlSelection *sel);
+
+ // 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;
+#if wxUSE_STATUSBAR
+ // frame in which page title should be displayed & number of it's statusbar
+ // reserved for usage with this html window
+ int m_RelatedStatusBar;
+#endif // wxUSE_STATUSBAR
+
+ // 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
+#endif // wxUSE_HTML
#endif // _WX_HTMLWIN_H_
+
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