X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/518ba66331d4e63376448802ce23fb7f7da82250..bd00fe32fb099384c5fdd337e3749ae461ae497f:/include/wx/html/htmlwin.h?ds=inline diff --git a/include/wx/html/htmlwin.h b/include/wx/html/htmlwin.h index 388cc12010..dd22df3b2d 100644 --- a/include/wx/html/htmlwin.h +++ b/include/wx/html/htmlwin.h @@ -7,20 +7,16 @@ // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// - #ifndef _WX_HTMLWIN_H_ #define _WX_HTMLWIN_H_ -#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) -#pragma interface "htmlwin.h" -#endif - #include "wx/defs.h" #if wxUSE_HTML #include "wx/window.h" #include "wx/scrolwin.h" #include "wx/config.h" +#include "wx/stopwatch.h" #include "wx/html/winpars.h" #include "wx/html/htmlcell.h" #include "wx/filesys.h" @@ -42,15 +38,187 @@ class WXDLLIMPEXP_HTML wxHtmlWinAutoScrollTimer; #define wxHW_DEFAULT_STYLE wxHW_SCROLLBAR_AUTO - -// enums for wxHtmlWindow::OnOpeningURL +/// Enum for wxHtmlWindow::OnOpeningURL and wxHtmlWindowInterface::OnOpeningURL enum wxHtmlOpeningStatus { + /// Open the requested URL wxHTML_OPEN, + /// Do not open the URL wxHTML_BLOCK, + /// Redirect to another URL (returned from OnOpeningURL) wxHTML_REDIRECT }; +/** + Abstract interface to a HTML rendering window (such as wxHtmlWindow or + wxHtmlListBox) that is passed to wxHtmlWinParser. It encapsulates all + communication from the parser to the window. + */ +class WXDLLIMPEXP_HTML wxHtmlWindowInterface +{ +public: + /// Ctor + wxHtmlWindowInterface() {} + virtual ~wxHtmlWindowInterface() {} + + /** + Called by the parser to set window's title to given text. + */ + virtual void SetHTMLWindowTitle(const wxString& title) = 0; + + /** + Called when a link is clicked. + + @param link information about the clicked link + */ + virtual void OnHTMLLinkClicked(const wxHtmlLinkInfo& link) = 0; + + /** + Called when the parser needs to open another URL (e.g. an image). + + @param type Type of the URL request (e.g. image) + @param url URL the parser wants to open + @param redirect If the return value is wxHTML_REDIRECT, then the + URL to redirect to will be stored in this variable + (the pointer must never be NULL) + + @return indicator of how to treat the request + */ + virtual wxHtmlOpeningStatus OnHTMLOpeningURL(wxHtmlURLType type, + const wxString& url, + wxString *redirect) const = 0; + + /** + Converts coordinates @a pos relative to given @a cell to + physical coordinates in the window. + */ + virtual wxPoint HTMLCoordsToWindow(wxHtmlCell *cell, + const wxPoint& pos) const = 0; + + /// Returns the window used for rendering (may be NULL). + virtual wxWindow* GetHTMLWindow() = 0; + + /// Returns background colour to use by default. + virtual wxColour GetHTMLBackgroundColour() const = 0; + + /// Sets window's background to colour @a clr. + virtual void SetHTMLBackgroundColour(const wxColour& clr) = 0; + + /// Sets window's background to given bitmap. + virtual void SetHTMLBackgroundImage(const wxBitmap& bmpBg) = 0; + + /// Sets status bar text. + virtual void SetHTMLStatusText(const wxString& text) = 0; + + /// Type of mouse cursor + enum HTMLCursor + { + /// Standard mouse cursor (typically an arrow) + HTMLCursor_Default, + /// Cursor shown over links + HTMLCursor_Link, + /// Cursor shown over selectable text + HTMLCursor_Text + }; + + /** + Returns mouse cursor of given @a type. + */ + virtual wxCursor GetHTMLCursor(HTMLCursor type) const = 0; +}; + +/** + Helper class that implements part of mouse handling for wxHtmlWindow and + wxHtmlListBox. Cursor changes and clicking on links are handled, text + selection is not. + */ +class WXDLLIMPEXP_HTML wxHtmlWindowMouseHelper +{ +protected: + /** + Ctor. + + @param iface Interface to the owner window. + */ + wxHtmlWindowMouseHelper(wxHtmlWindowInterface *iface); + + /** + Virtual dtor. + + It is not really needed in this case but at leats it prevents gcc from + complaining about its absence. + */ + virtual ~wxHtmlWindowMouseHelper() { } + + /// Returns true if the mouse moved since the last call to HandleIdle + bool DidMouseMove() const { return m_tmpMouseMoved; } + + /// Call this from EVT_MOTION event handler + void HandleMouseMoved(); + + /** + Call this from EVT_LEFT_UP handler (or, alternatively, EVT_LEFT_DOWN). + + @param rootCell HTML cell inside which the click occured. This doesn't + have to be the leaf cell, it can be e.g. toplevel + container, but the mouse must be inside the container's + area, otherwise the event would be ignored. + @param pos Mouse position in coordinates relative to @a cell + @param event The event that triggered the call + */ + bool HandleMouseClick(wxHtmlCell *rootCell, + const wxPoint& pos, const wxMouseEvent& event); + + /** + Call this from OnInternalIdle of the HTML displaying window. Handles + mouse movements and must be used together with HandleMouseMoved. + + @param rootCell HTML cell inside which the click occured. This doesn't + have to be the leaf cell, it can be e.g. toplevel + container, but the mouse must be inside the container's + area, otherwise the event would be ignored. + @param pos Current mouse position in coordinates relative to + @a cell + */ + void HandleIdle(wxHtmlCell *rootCell, const wxPoint& pos); + + /** + Called by HandleIdle when the mouse hovers over a cell. Default + behaviour is to do nothing. + + @param cell the cell the mouse is over + @param x, y coordinates of mouse relative to the cell + */ + virtual void OnCellMouseHover(wxHtmlCell *cell, wxCoord x, wxCoord y); + + /** + Called by HandleMouseClick when the user clicks on a cell. + Default behavior is to call wxHtmlWindowInterface::OnLinkClicked() + if this cell corresponds to a hypertext link. + + @param cell the cell the mouse is over + @param x, y coordinates of mouse relative to the cell + @param event The event that triggered the call + + + @return true if a link was clicked, false otherwise. + */ + virtual bool OnCellClicked(wxHtmlCell *cell, + wxCoord x, wxCoord y, + const wxMouseEvent& event); + +protected: + // this flag indicates if the mouse moved (used by HandleIdle) + bool m_tmpMouseMoved; + // contains last link name + wxHtmlLinkInfo *m_tmpLastLink; + // contains the last (terminal) cell which contained the mouse + wxHtmlCell *m_tmpLastCell; + +private: + wxHtmlWindowInterface *m_interface; +}; + // ---------------------------------------------------------------------------- // wxHtmlWindow // (This is probably the only class you will directly use.) @@ -62,18 +230,21 @@ enum wxHtmlOpeningStatus // SetPage(text) or LoadPage(filename). // ---------------------------------------------------------------------------- -class WXDLLIMPEXP_HTML wxHtmlWindow : public wxScrolledWindow +class WXDLLIMPEXP_HTML wxHtmlWindow : public wxScrolledWindow, + public wxHtmlWindowInterface, + public wxHtmlWindowMouseHelper { DECLARE_DYNAMIC_CLASS(wxHtmlWindow) friend class wxHtmlWinModule; public: - wxHtmlWindow() { Init(); } + wxHtmlWindow() : wxHtmlWindowMouseHelper(this) { Init(); } wxHtmlWindow(wxWindow *parent, wxWindowID id = wxID_ANY, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, long style = wxHW_DEFAULT_STYLE, const wxString& name = wxT("htmlWindow")) + : wxHtmlWindowMouseHelper(this) { Init(); Create(parent, id, pos, size, style, name); @@ -89,8 +260,8 @@ public: // 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); + // Return value : false if an error occurred, true otherwise + virtual bool SetPage(const wxString& source); // Append to current page bool AppendToPage(const wxString& source); @@ -128,7 +299,7 @@ public: #endif // wxUSE_STATUSBAR // Sets fonts to be used when displaying HTML page. - void SetFonts(wxString normal_face, wxString fixed_face, + void SetFonts(const wxString& normal_face, const wxString& fixed_face, const int *sizes = NULL); // Sets font sizes to be relative to the given size or the system @@ -182,16 +353,6 @@ public: // (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); @@ -218,6 +379,11 @@ public: wxString ToText(); #endif // wxUSE_CLIPBOARD + virtual void OnInternalIdle(); + + /// Returns standard HTML cursor as used by wxHtmlWindow + static wxCursor GetDefaultHTMLCursor(HTMLCursor type); + protected: void Init(); @@ -245,8 +411,6 @@ protected: 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;} @@ -273,9 +437,28 @@ protected: void StopAutoScrolling(); #endif // wxUSE_CLIPBOARD -protected: wxString DoSelectionToText(wxHtmlSelection *sel); +private: + // wxHtmlWindowInterface methods: + virtual void SetHTMLWindowTitle(const wxString& title); + virtual void OnHTMLLinkClicked(const wxHtmlLinkInfo& link); + virtual wxHtmlOpeningStatus OnHTMLOpeningURL(wxHtmlURLType type, + const wxString& url, + wxString *redirect) const; + virtual wxPoint HTMLCoordsToWindow(wxHtmlCell *cell, + const wxPoint& pos) const; + virtual wxWindow* GetHTMLWindow(); + virtual wxColour GetHTMLBackgroundColour() const; + virtual void SetHTMLBackgroundColour(const wxColour& clr); + virtual void SetHTMLBackgroundImage(const wxBitmap& bmpBg); + virtual void SetHTMLStatusText(const wxString& text); + virtual wxCursor GetHTMLCursor(HTMLCursor type) const; + + // implementation of SetPage() + bool DoSetPage(const wxString& source); + +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; @@ -315,7 +498,7 @@ protected: #if wxUSE_CLIPBOARD // time of the last doubleclick event, used to detect tripleclicks // (tripleclicks are used to select whole line): - wxLongLong m_lastDoubleClick; + wxMilliClock_t m_lastDoubleClick; // helper class to automatically scroll the window if the user is selecting // text and the mouse leaves wxHtmlWindow: @@ -333,10 +516,6 @@ private: wxPoint m_tmpSelFromPos; wxHtmlCell *m_tmpSelFromCell; - // 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; @@ -356,14 +535,14 @@ private: // if this FLAG is false, items are not added to history bool m_HistoryOn; - // a flag indicated if mouse moved - // (if true we will try to change cursor in last call to OnIdle) - bool m_tmpMouseMoved; - // a flag set if we need to erase background in OnPaint() (otherwise this // is supposed to have been done in OnEraseBackground()) bool m_eraseBgInOnPaint; + // standard mouse cursors + static wxCursor *ms_cursorLink; + static wxCursor *ms_cursorText; + DECLARE_EVENT_TABLE() DECLARE_NO_COPY_CLASS(wxHtmlWindow) };