/////////////////////////////////////////////////////////////////////////////
// Name:        html/helpwnd.h
// Purpose:     interface of wxHtmlHelpWindow
// Author:      wxWidgets team
// RCS-ID:      $Id$
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

/**
    @class wxHtmlHelpWindow

    This class is used by wxHtmlHelpController to display help within a frame or
    dialog, but you can use it yourself to create an embedded HTML help window.

    For example:
    @code
        // m_embeddedHelpWindow is a wxHtmlHelpWindow
        // m_embeddedHtmlHelp is a wxHtmlHelpController

        // Create embedded HTML Help window
        m_embeddedHelpWindow = new wxHtmlHelpWindow;
        m_embeddedHtmlHelp.UseConfig(config, rootPath); // Set your own config object here
        m_embeddedHtmlHelp.SetHelpWindow(m_embeddedHelpWindow);
        m_embeddedHelpWindow->Create(this, wxID_ANY, wxDefaultPosition, GetClientSize(),
                                     wxTAB_TRAVERSAL|wxBORDER_NONE, wxHF_DEFAULT_STYLE);
        m_embeddedHtmlHelp.AddBook(wxFileName(wxT("doc.zip")));
    @endcode

    You should pass the style wxHF_EMBEDDED to the style parameter of
    wxHtmlHelpController to allow the embedded window to be destroyed
    independently of the help controller.

    @library{wxhtml}
    @category{help,html}
*/
class wxHtmlHelpWindow : public wxWindow
{
public:
    wxHtmlHelpWindow(wxHtmlHelpData* data = NULL);

    /**
        Constructor.

        For the values of @a helpStyle, please see the documentation for
        wxHtmlHelpController.
    */
    wxHtmlHelpWindow(wxWindow* parent, int wxWindowID,
                     const wxPoint& pos = wxDefaultPosition,
                     const wxSize& pos = wxDefaultSize,
                     int style = wxTAB_TRAVERSAL|wxBORDER_NONE,
                     int helpStyle = wxHF_DEFAULT_STYLE,
                     wxHtmlHelpData* data = NULL);

    /**
        Creates the help window. See @ref wxHtmlHelpWindow() "the constructor"
        for a description of the parameters.
    */
    bool Create(wxWindow* parent, wxWindowID id,
                const wxPoint& pos = wxDefaultPosition,
                const wxSize& size = wxDefaultSize, int style = wxTAB_TRAVERSAL|wxBORDER_NONE,
                int helpStyle = wxHF_DEFAULT_STYLE);

    /**
        Displays page x.
        If not found it will give the user the choice of searching books.
        Looking for the page runs in these steps:
        -# try to locate file named x (if x is for example "doc/howto.htm")
        -# try to open starting page of book x
        -# try to find x in contents (if x is for example "How To ...")
        -# try to find x in index (if x is for example "How To ...")
    */
    bool Display(const wxString& x);

    /**
        @overload

        This form takes numeric ID as the parameter (uses an extension to MS format,
        param name="ID" value=id).
    */
    bool Display(const int id);

    /**
        Displays contents panel.
    */
    bool DisplayContents();

    /**
        Displays index panel.
    */
    bool DisplayIndex();

    /**
        Returns the wxHtmlHelpData object, which is usually a pointer to the
        controller's data.
    */
    wxHtmlHelpData* GetData();

    /**
        Search for given keyword. Optionally it searches through the index
        (mode = @c wxHELP_SEARCH_INDEX), default the content (mode = @c wxHELP_SEARCH_ALL).
    */
    bool KeywordSearch(const wxString& keyword,
                       wxHelpSearchMode mode = wxHELP_SEARCH_ALL);

    /**
        Reads the user's settings for this window.

        @see wxHtmlHelpController::ReadCustomization
    */
    void ReadCustomization(wxConfigBase* cfg,
                           const wxString& path = wxEmptyString);

    /**
        Associates a wxConfig object with the help window. It is recommended that you
        use wxHtmlHelpController::UseConfig instead.
    */
    void UseConfig(wxConfigBase* config,
                   const wxString& rootpath = wxEmptyString);

    /**
        Saves the user's settings for this window.

        @see wxHtmlHelpController::WriteCustomization
    */
    void WriteCustomization(wxConfigBase* cfg,
                            const wxString& path = wxEmptyString);

    /**
        Refresh all panels. This is necessary if a new book was added.
    */
    void RefreshLists();

protected:

    /**
        Creates search panel.
    */
    void CreateSearch();

    /**
        You may override this virtual method to add more buttons to the help window's
        toolbar. @a toolBar is a pointer to the toolbar and @a style is the style
        flag as passed to the Create() method.

        wxToolBar::Realize is called immediately after returning from this function.
        See @c samples/html/helpview for an example.
    */
    virtual void AddToolbarButtons(wxToolBar* toolBar, int style);

    /**
        Creates contents panel. (May take some time.)
    */
    void CreateContents();

    /**
        Creates index panel. (May take some time.)
    */
    void CreateIndex();
};