// Name: html/htmlwin.h
// Purpose: interface of wxHtmlWindow
// Author: wxWidgets team
-// RCS-ID: $Id$
-// Licence: wxWindows license
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
+// wxHtmlWindow flags:
+#define wxHW_SCROLLBAR_NEVER 0x0002
+#define wxHW_SCROLLBAR_AUTO 0x0004
+#define wxHW_NO_SELECTION 0x0008
+
+#define wxHW_DEFAULT_STYLE wxHW_SCROLLBAR_AUTO
+
+
+/// 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
+};
+
+
+/**
+ @class wxHtmlWindowInterface
+
+ 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 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(wxHtmlWindowInterface::HTMLCursor type) const = 0;
+};
+
+
+
/**
@class wxHtmlWindow
- wxHtmlWindow is probably the only class you will directly use
- unless you want to do something special (like adding new tag
- handlers or MIME filters).
+ wxHtmlWindow is probably the only class you will directly use unless you want
+ to do something special (like adding new tag handlers or MIME filters).
- The purpose of this class is to display HTML pages (either local
- file or downloaded via HTTP protocol) in a window. The width
- of the window is constant - given in the constructor - and virtual height
+ The purpose of this class is to display rich content pages (either local file or
+ downloaded via HTTP protocol) in a window based on a subset of the HTML standard.
+ The width of the window is constant - given in the constructor - and virtual height
is changed dynamically depending on page size.
- Once the window is created you can set its content by calling
- @ref wxHtmlWindow::setpage SetPage(text),
- @ref wxHtmlWindow::loadpage LoadPage(filename) or
- wxHtmlWindow::LoadFile.
+ Once the window is created you can set its content by calling SetPage() with raw HTML,
+ LoadPage() with a wxFileSystem location or LoadFile() with a filename.
+
+ @note
+ If you want complete HTML/CSS support as well as a Javascript engine, see instead
+ wxWebView.
+
+ @note
+ wxHtmlWindow uses the wxImage class for displaying images, as such you need to
+ initialize the handlers for any image formats you use before loading a page.
+ See ::wxInitAllImageHandlers and wxImage::AddHandler.
@beginStyleTable
@style{wxHW_SCROLLBAR_NEVER}
Don't allow the user to select text.
@endStyleTable
+
+ @beginEventEmissionTable{wxHtmlCellEvent, wxHtmlLinkEvent}
+ @event{EVT_HTML_CELL_CLICKED(id, func)}
+ A wxHtmlCell was clicked.
+ @event{EVT_HTML_CELL_HOVER(id, func)}
+ The mouse passed over a wxHtmlCell.
+ @event{EVT_HTML_LINK_CLICKED(id, func)}
+ A wxHtmlCell which contains an hyperlink was clicked.
+ @endEventTable
+
@library{wxhtml}
@category{html}
@see wxHtmlLinkEvent, wxHtmlCellEvent
*/
-class wxHtmlWindow : public wxScrolledWindow
+class wxHtmlWindow : public wxScrolledWindow, public wxHtmlWindowInterface
{
public:
- //@{
/**
- Constructor. The parameters are the same as wxScrolled::wxScrolled()
- constructor.
-
- @param style
- Window style. See wxHtmlWindow.
+ Default ctor.
*/
wxHtmlWindow();
- wxHtmlWindow(wxWindow parent, wxWindowID id = -1,
+
+ /**
+ Constructor.
+ The parameters are the same as wxScrolled::wxScrolled() constructor.
+ */
+ wxHtmlWindow(wxWindow *parent, wxWindowID id = wxID_ANY,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = wxHW_DEFAULT_STYLE,
const wxString& name = "htmlWindow");
- //@}
/**
- Adds @ref overview_filters "input filter" to the static list of available
+ Adds @ref overview_html_filters "input filter" to the static list of available
filters. These filters are present by default:
- @c text/html MIME type
- @c image/* MIME types
- Plain Text filter (this filter is used if no other filter matches)
+ - @c text/html MIME type
+ - @c image/* MIME types
+ - Plain Text filter (this filter is used if no other filter matches)
*/
- static void AddFilter(wxHtmlFilter filter);
+ static void AddFilter(wxHtmlFilter* filter);
/**
Appends HTML fragment to currently displayed text and refreshes the window.
-
+
@param source
HTML code fragment
-
+
@return @false if an error occurred, @true otherwise.
*/
bool AppendToPage(const wxString& source);
/**
Returns pointer to the top-level container.
- See also: @ref overview_cells "Cells Overview",
- @ref overview_printing
+
+ @see @ref overview_html_cells, @ref overview_printing
*/
wxHtmlContainerCell* GetInternalRepresentation() const;
/**
- Returns anchor within currently opened page
- (see wxHtmlWindow::GetOpenedPage).
- If no page is opened or if the displayed page wasn't
- produced by call to LoadPage, empty string is returned.
+ Returns anchor within currently opened page (see wxHtmlWindow::GetOpenedPage).
+ If no page is opened or if the displayed page wasn't produced by call to
+ LoadPage(), empty string is returned.
*/
- wxString GetOpenedAnchor();
+ wxString GetOpenedAnchor() const;
/**
- Returns full location of the opened page. If no page is opened or if the
- displayed page wasn't
- produced by call to LoadPage, empty string is returned.
+ Returns full location of the opened page.
+ If no page is opened or if the displayed page wasn't produced by call to
+ LoadPage(), empty string is returned.
*/
- wxString GetOpenedPage();
+ wxString GetOpenedPage() const;
/**
- Returns title of the opened page or wxEmptyString if current page does not
- contain @c TITLE tag.
+ Returns title of the opened page or wxEmptyString if the current page does not
+ contain \<TITLE\> tag.
*/
- wxString GetOpenedPageTitle();
+ wxString GetOpenedPageTitle() const;
/**
Returns the related frame.
wxFrame* GetRelatedFrame() const;
/**
- Moves back to the previous page. (each page displayed using
- LoadPage() is stored in history list.)
+ Moves back to the previous page. Only pages displayed using LoadPage()
+ are stored in history list.
*/
bool HistoryBack();
/**
- Returns @true if it is possible to go back in the history (i.e. HistoryBack()
- won't fail).
+ Returns @true if it is possible to go back in the history
+ i.e. HistoryBack() won't fail.
*/
bool HistoryCanBack();
/**
- Returns @true if it is possible to go forward in the history (i.e. HistoryBack()
- won't fail).
+ Returns @true if it is possible to go forward in the history
+ i.e. HistoryForward() won't fail.
*/
bool HistoryCanForward();
void HistoryClear();
/**
- Moves to next page in history.
+ Moves to next page in history. Only pages displayed using LoadPage()
+ are stored in history list.
*/
bool HistoryForward();
/**
- Loads HTML page from file and displays it.
-
+ Loads an HTML page from a file and displays it.
+
@return @false if an error occurred, @true otherwise
-
+
@see LoadPage()
*/
- virtual bool LoadFile(const wxFileName& filename);
+ bool LoadFile(const wxFileName& filename);
/**
- Unlike SetPage this function first loads HTML page from @a location
- and then displays it. See example:
-
+ Unlike SetPage() this function first loads the HTML page from @a location
+ and then displays it.
+
@param location
- The address of document. See wxFileSystem for details on address format and
- behaviour of "opener".
-
+ The address of the document.
+ See the @ref overview_fs for details on the address format
+ and wxFileSystem for a description of how the file is opened.
+
@return @false if an error occurred, @true otherwise
-
+
@see LoadFile()
*/
virtual bool LoadPage(const wxString& location);
/**
- This method is called when a mouse button is clicked inside wxHtmlWindow.
- The default behaviour is to emit a wxHtmlCellEvent
- and, if the event was not processed or skipped, call
- OnLinkClicked() if the cell contains an
- hypertext link.
- Overloading this method is deprecated; intercept the event instead.
-
- @param cell
- The cell inside which the mouse was clicked, always a simple
- (i.e. non-container) cell
- @param x, y
- The logical coordinates of the click point
- @param event
- The mouse event containing other information about the click
-
- @return @true if a link was clicked, @false otherwise.
- */
- virtual bool OnCellClicked(wxHtmlCell cell, wxCoord x, wxCoord y,
- const wxMouseEvent& event);
+ Called when user clicks on hypertext link.
+ Default behaviour is to emit a wxHtmlLinkEvent and, if the event was not
+ processed or skipped, call LoadPage() and do nothing else.
- /**
- This method is called when a mouse moves over an HTML cell.
- Default behaviour is to emit a wxHtmlCellEvent.
Overloading this method is deprecated; intercept the event instead.
-
- @param cell
- The cell inside which the mouse is currently, always a simple
- (i.e. non-container) cell
- @param x, y
- The logical coordinates of the click point
- */
- virtual void OnCellMouseHover(wxHtmlCell cell, wxCoord x,
- wxCoord y);
- /**
- Called when user clicks on hypertext link. Default behaviour is to emit a
- wxHtmlLinkEvent and, if the event was not processed
- or skipped, call LoadPage() and do nothing else.
- Overloading this method is deprecated; intercept the event instead.
Also see wxHtmlLinkInfo.
*/
virtual void OnLinkClicked(const wxHtmlLinkInfo& link);
/**
Called when an URL is being opened (either when the user clicks on a link or
- an image is loaded). The URL will be opened only if OnOpeningURL returns
- @c wxHTML_OPEN. This method is called by
- wxHtmlParser::OpenURL.
- You can override OnOpeningURL to selectively block some
- URLs (e.g. for security reasons) or to redirect them elsewhere. Default
- behaviour is to always return @c wxHTML_OPEN.
-
+ an image is loaded). The URL will be opened only if OnOpeningURL() returns
+ @c wxHTML_OPEN. This method is called by wxHtmlParser::OpenURL.
+
+ You can override OnOpeningURL() to selectively block some URLs
+ (e.g. for security reasons) or to redirect them elsewhere.
+ Default behaviour is to always return @c wxHTML_OPEN.
+
@param type
Indicates type of the resource. Is one of
-
-
-
-
-
-
- wxHTML_URL_PAGE
-
-
-
-
- Opening a HTML page.
-
-
-
-
-
- wxHTML_URL_IMAGE
-
-
-
-
- Opening an image.
-
-
-
-
-
- wxHTML_URL_OTHER
-
-
-
-
- Opening a resource that doesn't fall into
- any other category.
+ - wxHTML_URL_PAGE: Opening a HTML page.
+ - wxHTML_URL_IMAGE: Opening an image.
+ - wxHTML_URL_OTHER: Opening a resource that doesn't fall into
+ any other category.
@param url
URL being opened.
@param redirect
Pointer to wxString variable that must be filled with an
- URL if OnOpeningURL returns wxHTML_REDIRECT.
+ URL if OnOpeningURL() returns @c wxHTML_REDIRECT.
+
+ The return value is:
+ - wxHTML_OPEN: Open the URL.
+ - wxHTML_BLOCK: Deny access to the URL, wxHtmlParser::OpenURL will return @NULL.
+ - wxHTML_REDIRECT: Don't open url, redirect to another URL.
+ OnOpeningURL() must fill *redirect with the new URL.
+ OnOpeningURL() will be called again on returned URL.
*/
virtual wxHtmlOpeningStatus OnOpeningURL(wxHtmlURLType type,
- const wxString& url,
- wxString* redirect);
+ const wxString& url,
+ wxString* redirect) const;
/**
- Called on parsing @c TITLE tag.
+ Called on parsing \<TITLE\> tag.
*/
virtual void OnSetTitle(const wxString& title);
/**
This reads custom settings from wxConfig. It uses the path 'path'
if given, otherwise it saves info into currently selected path.
- The values are stored in sub-path @c wxHtmlWindow
- Read values: all things set by SetFonts, SetBorders.
-
+ The values are stored in sub-path @c wxHtmlWindow.
+ Read values: all things set by SetFonts(), SetBorders().
+
@param cfg
wxConfig from which you want to read the configuration.
@param path
Optional path in config tree. If not given current path is used.
*/
- virtual void ReadCustomization(wxConfigBase cfg,
+ virtual void ReadCustomization(wxConfigBase* cfg,
wxString path = wxEmptyString);
/**
Selects all text in the window.
-
+
@see SelectLine(), SelectWord()
*/
void SelectAll();
is relative to the top of displayed page, not to window's origin, use
wxScrolled::CalcUnscrolledPosition()
to convert physical coordinate.
-
+
@see SelectAll(), SelectWord()
*/
void SelectLine(const wxPoint& pos);
/**
- Selects the word at position @e pos. Note that @e pos
- is relative to the top of displayed page, not to window's origin, use
- wxScrolled::CalcUnscrolledPosition()
- to convert physical coordinate.
-
+ Selects the word at position @a pos.
+ Note that @a pos is relative to the top of displayed page, not to window's
+ origin, use wxScrolled::CalcUnscrolledPosition() to convert physical coordinate.
+
@see SelectAll(), SelectLine()
*/
void SelectWord(const wxPoint& pos);
/**
- Returns current selection as plain text. Returns empty string if no text
- is currently selected.
+ Returns the current selection as plain text.
+ Returns an empty string if no text is currently selected.
*/
wxString SelectionToText();
/**
- This function sets the space between border of window and HTML contents. See
- image:
-
+ This function sets the space between border of window and HTML contents.
+ See image:
+ @image html htmlwin_border.png
+
@param b
indentation from borders in pixels
*/
void SetBorders(int b);
/**
- This function sets font sizes and faces.
-
- @param normal_face
- This is face name for normal (i.e. non-fixed) font.
- It can be either empty string (then the default face is chosen) or
- platform-specific face name. Examples are "helvetica" under Unix or
- "Times New Roman" under Windows.
- @param fixed_face
- The same thing for fixed face ( TT../TT )
- @param sizes
- This is an array of 7 items of int type.
- The values represent size of font with HTML size from -2 to +4
- ( FONT SIZE=-2 to FONT SIZE=+4 ). Default sizes are used if sizes
- is @NULL.
- */
- void SetFonts(const wxString& normal_face,
- const wxString& fixed_face,
- const int sizes = NULL);
-
- /**
- Sets HTML page and display it. This won't @b load the page!!
- It will display the @e source. See example:
-
- If you want to load a document from some location use
- LoadPage() instead.
-
+ This function sets font sizes and faces. See wxHtmlDCRenderer::SetFonts
+ for detailed description.
+
+ @see SetSize()
+ */
+ void SetFonts(const wxString& normal_face, const wxString& fixed_face,
+ const int* sizes = NULL);
+
+ /**
+ Sets default font sizes and/or default font size.
+ See wxHtmlDCRenderer::SetStandardFonts for detailed description.
+ @see SetFonts()
+ */
+ void SetStandardFonts(int size = -1,
+ const wxString& normal_face = wxEmptyString,
+ const wxString& fixed_face = wxEmptyString);
+
+ /**
+ Sets the source of a page and displays it, for example:
+ @code
+ htmlwin -> SetPage("<html><body>Hello, world!</body></html>");
+ @endcode
+
+ If you want to load a document from some location use LoadPage() instead.
+
@param source
- The HTML document source to be displayed.
-
+ The HTML to be displayed.
+
@return @false if an error occurred, @true otherwise.
*/
- bool SetPage(const wxString& source);
+ virtual bool SetPage(const wxString& source);
/**
- Sets the frame in which page title will be displayed. @a format is format of
- frame title, e.g. "HtmlHelp : %s". It must contain exactly one %s. This
- %s is substituted with HTML page title.
+ Sets the frame in which page title will be displayed.
+ @a format is the format of the frame title, e.g. "HtmlHelp : %s".
+ It must contain exactly one %s.
+ This %s is substituted with HTML page title.
*/
void SetRelatedFrame(wxFrame* frame, const wxString& format);
/**
- @b After calling SetRelatedFrame(),
- this sets statusbar slot where messages will be displayed.
- (Default is -1 = no messages.)
+ @b After calling SetRelatedFrame(), this sets statusbar slot where messages
+ will be displayed. (Default is -1 = no messages.)
@param index
Statusbar slot number (0..n)
wxString ToText();
/**
- Saves custom settings into wxConfig. It uses the path 'path'
- if given, otherwise it saves info into currently selected path.
- Regardless of whether the path is given or not, the function creates sub-path
- @c wxHtmlWindow.
- Saved values: all things set by SetFonts, SetBorders.
-
+ Saves custom settings into wxConfig.
+ It uses the path 'path' if given, otherwise it saves info into currently
+ selected path.
+ Regardless of whether the path is given or not, the function creates
+ sub-path @c wxHtmlWindow.
+
+ Saved values: all things set by SetFonts(), SetBorders().
+
@param cfg
wxConfig to which you want to save the configuration.
@param path
Optional path in config tree. If not given, the current path is used.
*/
- virtual void WriteCustomization(wxConfigBase cfg,
+ virtual void WriteCustomization(wxConfigBase* cfg,
wxString path = wxEmptyString);
+
+protected:
+
+ /**
+ This method is called when a mouse button is clicked inside wxHtmlWindow.
+ The default behaviour is to emit a wxHtmlCellEvent and, if the event was
+ not processed or skipped, call OnLinkClicked() if the cell contains an
+ hypertext link.
+
+ Overloading this method is deprecated; intercept the event instead.
+
+ @param cell
+ The cell inside which the mouse was clicked, always a simple
+ (i.e. non-container) cell
+ @param x
+ The logical x coordinate of the click point
+ @param y
+ The logical y coordinate of the click point
+ @param event
+ The mouse event containing other information about the click
+
+ @return @true if a link was clicked, @false otherwise.
+ */
+ virtual bool OnCellClicked(wxHtmlCell* cell, wxCoord x, wxCoord y,
+ const wxMouseEvent& event);
+
+ /**
+ This method is called when a mouse moves over an HTML cell.
+ Default behaviour is to emit a wxHtmlCellEvent.
+
+ Overloading this method is deprecated; intercept the event instead.
+
+ @param cell
+ The cell inside which the mouse is currently, always a simple
+ (i.e. non-container) cell
+ @param x
+ The logical x coordinate of the click point
+ @param y
+ The logical y coordinate of the click point
+ */
+ virtual void OnCellMouseHover(wxHtmlCell* cell, wxCoord x, wxCoord y);
};
+wxEventType wxEVT_HTML_CELL_CLICKED;
+wxEventType wxEVT_HTML_CELL_HOVER;
+wxEventType wxEVT_HTML_LINK_CLICKED;
+
+
/**
@class wxHtmlLinkEvent
This event class is used for the events generated by wxHtmlWindow.
+ @beginEventTable{wxHtmlLinkEvent}
+ @event{EVT_HTML_LINK_CLICKED(id, func)}
+ User clicked on an hyperlink.
+ @endEventTable
+
@library{wxhtml}
- @category{FIXME}
+ @category{html}
*/
class wxHtmlLinkEvent : public wxCommandEvent
{
/**
The constructor is not normally used by the user code.
*/
- wxHyperlinkEvent(int id, const wxHtmlLinkInfo& linkinfo);
+ wxHtmlLinkEvent(int id, const wxHtmlLinkInfo& linkinfo);
/**
- Returns the wxHtmlLinkInfo which contains info about the cell clicked and the
- hyperlink it contains.
+ Returns the wxHtmlLinkInfo which contains info about the cell clicked
+ and the hyperlink it contains.
*/
- const wxHtmlLinkInfo GetLinkInfo() const;
+ const wxHtmlLinkInfo& GetLinkInfo() const;
};
This event class is used for the events generated by wxHtmlWindow.
+ @beginEventTable{wxHtmlCellEvent}
+ @event{EVT_HTML_CELL_HOVER(id, func)}
+ User moved the mouse over a wxHtmlCell.
+ @event{EVT_HTML_CELL_CLICKED(id, func)}
+ User clicked on a wxHtmlCell. When handling this event, remember to use
+ wxHtmlCell::SetLinkClicked(true) if the cell contains a link.
+ @endEventTable
+
@library{wxhtml}
- @category{FIXME}
+ @category{html}
*/
class wxHtmlCellEvent : public wxCommandEvent
{
*/
wxHtmlCellEvent(wxEventType commandType, int id,
wxHtmlCell* cell,
- const wxPoint& point);
+ const wxPoint& point,
+ const wxMouseEvent& ev);
/**
Returns the wxHtmlCellEvent associated with the event.
wxHtmlCell* GetCell() const;
/**
- Returns @true if @ref setlinkclicked() SetLinkClicked(@true) has previously
- been called;
+ Returns @true if SetLinkClicked(@true) has previously been called;
@false otherwise.
*/
bool GetLinkClicked() const;
wxPoint GetPoint() const;
/**
- Call this function with @c linkclicked set to @true if the cell which has
- been clicked contained a link or
- @false otherwise (which is the default). With this function the event handler
- can return info to the
- wxHtmlWindow which sent the event.
+ Call this function with @a linkclicked set to @true if the cell which has
+ been clicked contained a link or @false otherwise (which is the default).
+
+ With this function the event handler can return info to the wxHtmlWindow
+ which sent the event.
*/
- bool SetLinkClicked(bool linkclicked);
+ void SetLinkClicked(bool linkclicked);
};
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