// Window.hh for Fluxbox Window Manager
// Copyright (c) 2001-2002 Henrik Kinnunen (fluxgen at users.sourceforge.net)
//
// Window.hh for Blackbox - an X11 Window manager
// Copyright (c) 1997 - 2000 Brad Hughes (bhughes at tcac.net)
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.	IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.

// $Id: Window.hh,v 1.39 2002/12/13 20:35:36 fluxgen Exp $

#ifndef	 WINDOW_HH
#define	 WINDOW_HH

#include "BaseDisplay.hh"
#include "Timer.hh"
#include "Windowmenu.hh"
#include "Subject.hh"

#include <X11/Xlib.h>
#include <X11/Xutil.h>

#ifdef SHAPE
#include <X11/extensions/shape.h>
#endif // SHAPE

#include <vector>
#include <string>
#include <memory>

#define PropMwmHintsElements	3

class Tab;


/// Creates the window frame and handles any window event for it
class FluxboxWindow : public TimeoutHandler {
public:
    /// layer bits
    enum WinLayer {
        LAYER_BOTTOM = 0x01,  ///< bottom layer
        LAYER_BELOW  = 0x02,  ///< below normal layer but above bottom
        LAYER_NORMAL = 0x04,  ///< normal layer
        LAYER_TOP    = 0x08   ///< top layer
    };
    /// decoration bit
    enum Decoration {
        DECOR_NONE=0, ///< no decor at all
        DECOR_NORMAL, ///< normal normal
        DECOR_TINY,   ///< tiny decoration
        DECOR_TOOL    ///< decor tool
    };

    /// Motif wm Hints
    enum {
        MwmHintsFunctions   = (1l << 0), ///< use motif wm functions
        MwmHintsDecorations	= (1l << 1) ///< use motif wm decorations
    };
	
    /// Motif wm functions
    enum MwmFunc{
        MwmFuncAll          = (1l << 0), ///< all motif wm functions
        MwmFuncResize       = (1l << 1), ///< resize 
        MwmFuncMove         = (1l << 2), ///< move 
        MwmFuncIconify      = (1l << 3), ///< iconify
        MwmFuncMaximize     = (1l << 4), ///< maximize
        MwmFuncClose        = (1l << 5)  ///< close
    };
    /// Motif wm decorations
    enum MwmDecor {
        MwmDecorAll         = (1l << 0), /// all decorations
        MwmDecorBorder      = (1l << 1), /// border
        MwmDecorHandle      = (1l << 2), /// handle
        MwmDecorTitle       = (1l << 3), /// title
        MwmDecorMenu        = (1l << 4), /// menu
        MwmDecorIconify     = (1l << 5), /// iconify
        MwmDecorMaximize    = (1l << 6)  /// maximize
    };
    /// create fluxbox window with parent win and screen connection
    explicit FluxboxWindow(Window win, BScreen *scr = 0);
    virtual ~FluxboxWindow();
    /**
       @name accessors		
    */
    //@{
    bool isTransient() const { return ((client.transient_for) ? true : false); }
    bool hasTransient() const { return ((client.transients.size()) ? true : false); }
    bool isManaged() const { return managed; }
    bool isFocused() const { return focused; }
    bool isVisible() const { return visible; }
    bool isIconic() const { return iconic; }
    bool isShaded() const { return shaded; }
    bool isMaximized() const { return maximized; }
    bool isIconifiable() const { return functions.iconify; }
    bool isMaximizable() const { return functions.maximize; }
    bool isResizable() const { return functions.resize; }
    bool isClosable() const { return functions.close; }
    bool isStuck() const { return stuck; }
    bool hasTitlebar() const { return decorations.titlebar; }
    bool hasTab() const { return (tab!=0 ? true : false); }
    bool isMoving() const { return moving; }
    bool isResizing() const { return resizing; }
    bool isGroupable() const;
    const BScreen *getScreen() const { return screen; }
    BScreen *getScreen() { return screen; }
    const Tab *getTab() const { return tab; }
    Tab *getTab() { return tab; }
    const std::list<FluxboxWindow *> &getTransients() const { return client.transients; } 
    std::list<FluxboxWindow *> &getTransients() { return client.transients; } 	
    const FluxboxWindow *getTransientFor() const { return client.transient_for; }
    FluxboxWindow *getTransientFor() { return client.transient_for; }
	
    const Window &getFrameWindow() const { return frame.window; }
    const Window &getClientWindow() const { return client.window; }

    Windowmenu *getWindowmenu() { return m_windowmenu.get(); }
    const Windowmenu *getWindowmenu() const { return m_windowmenu.get(); }
	
    const std::string &getTitle() const { return client.title; }
    const std::string &getIconTitle() const { return client.icon_title; }
    int getXFrame() const { return frame.x; }
    int getYFrame() const { return frame.y; }
    int getXClient() const { return client.x; }
    int getYClient() const { return client.y; }
    unsigned int getWorkspaceNumber() const { return workspace_number; }
    int getWindowNumber() const { return window_number; }
    WinLayer getLayer() const { return m_layer; }
    unsigned int getWidth() const { return frame.width; }
    unsigned int getHeight() const { return frame.height; }
    unsigned int getClientHeight() const { return client.height; }
    unsigned int getClientWidth() const { return client.width; }
    unsigned int getTitleHeight() const { return frame.title_h; }
    const std::string &className() const { return m_class_name; }
    const std::string &instanceName() const { return m_instance_name; }
    bool isLowerTab() const;
    /**
       @name signals
    @{
    */
    FbTk::Subject &stateSig() { return m_statesig; }
    const FbTk::Subject &stateSig() const { return m_statesig; }
    FbTk::Subject &hintSig() { return m_hintsig; }
    const FbTk::Subject &hintSig() const { return m_hintsig; }
    FbTk::Subject &workspaceSig() { return m_workspacesig; }
    const FbTk::Subject &workspaceSig() const { return m_workspacesig; }
    /** @} */ // end group signals

    //@}

    void setWindowNumber(int n) { window_number = n; }
	
    const timeval &getLastFocusTime() const {return lastFocusTime;}

    bool validateClient();
    bool setInputFocus();
    void setTab(bool flag);
    void setFocusFlag(bool flag);
    void iconify();
    void deiconify(bool = true, bool = true);
    void close();
    void withdraw();
    void maximize(unsigned int);
    /// toggles shade
    void shade();
    /// toggles sticky
    void stick(); 
    void reconfigure();
    void installColormap(bool);
    void restore(bool remap);
    void configure(int dx, int dy, unsigned int dw, unsigned int dh);
    void setWorkspace(int n);
    void changeBlackboxHints(BaseDisplay::BlackboxHints *bh);
    void restoreAttributes();
    void showMenu(int mx, int my);	
    void pauseMoving();
    void resumeMoving();
    /**
       @name event handlers
    */
    //@{
    void buttonPressEvent(XButtonEvent *be);
    void buttonReleaseEvent(XButtonEvent *be);
    void motionNotifyEvent(XMotionEvent *me);
    bool destroyNotifyEvent(XDestroyWindowEvent *dwe);
    void mapRequestEvent(XMapRequestEvent *mre);
    void mapNotifyEvent(XMapEvent *mapev);
    bool unmapNotifyEvent(XUnmapEvent *unmapev);
    void propertyNotifyEvent(Atom a);
    void exposeEvent(XExposeEvent *ee);
    void configureRequestEvent(XConfigureRequestEvent *ce);
    //@}

    void setDecoration(Decoration decoration);
    void toggleDecoration();
	
#ifdef SHAPE
    void shapeEvent(XShapeEvent *);
#endif // SHAPE

    virtual void timeout();
	
    // this structure only contains 3 elements... the Motif 2.0 structure contains
    // 5... we only need the first 3... so that is all we will define
    typedef struct MwmHints {
        unsigned long flags;       // Motif wm flags
        unsigned long functions;   // Motif wm functions
        unsigned long decorations; // Motif wm decorations
    } MwmHints;

    class WinSubject: public FbTk::Subject {
    public:
        WinSubject(FluxboxWindow &w):m_win(w) { }
        FluxboxWindow &win() { return m_win; }
        const FluxboxWindow &win() const { return m_win; }
    private:
        FluxboxWindow &m_win;
    };

private:
    // state and hint signals
    WinSubject m_hintsig, m_statesig, m_workspacesig;

    BImageControl *image_ctrl; /// image control for rendering
	
    std::string m_instance_name; /// instance name from WM_CLASS
    std::string m_class_name; /// class name from WM_CLASS
	
    //Window state
    bool moving, resizing, shaded, maximized, visible, iconic, transient,
        focused, stuck, modal, send_focus_message, managed;

    BScreen *screen; /// screen on which this window exist
    BTimer timer;
    Display *display; /// display connection (obsolete by BaseDisplay singleton)
    BaseDisplay::BlackboxAttributes blackbox_attrib;

    Time lastButtonPressTime;
    std::auto_ptr<Windowmenu> m_windowmenu;

    timeval lastFocusTime;

    int focus_mode, window_number;
    unsigned int workspace_number;
    unsigned long current_state;
    WinLayer m_layer;
    Decoration old_decoration;

    struct _client {
        FluxboxWindow *transient_for; // which window are we a transient for?
        std::list<FluxboxWindow *>	transients;  // which windows are our transients?
        Window window, window_group;

        std::string title, icon_title;
        int x, y, old_bw;
        unsigned int width, height, title_text_w,
            min_width, min_height, max_width, max_height, width_inc, height_inc,
            min_aspect_x, min_aspect_y, max_aspect_x, max_aspect_y,
            base_width, base_height, win_gravity;
        unsigned long initial_state, normal_hint_flags, wm_hint_flags;

        MwmHints *mwm_hint;
        BaseDisplay::BlackboxHints *blackbox_hint;
		
    } client;

    struct _decorations {
        bool titlebar, handle, border, iconify,
            maximize, close, menu, sticky, shade, tab, enabled;
    } decorations;

    struct _functions {
        bool resize, move, iconify, maximize, close;
    } functions;
	

    Tab *tab;
    friend class Tab; //TODO: Don't like long distant friendship
	
    typedef void (*ButtonDrawProc)(FluxboxWindow *, Window, bool);
    typedef void (*ButtonEventProc)(FluxboxWindow *, XButtonEvent *);

    struct Button {
        int type;
        Window win;
        bool used;
        ButtonEventProc pressed;
        ButtonEventProc released;
        ButtonDrawProc draw;		
    };
	
    std::vector<Button> buttonlist;
	
    struct _frame {
        Bool shaped;
        unsigned long ulabel_pixel, flabel_pixel, utitle_pixel,
            ftitle_pixel, uhandle_pixel, fhandle_pixel, ubutton_pixel,
            fbutton_pixel, pbutton_pixel, uborder_pixel, fborder_pixel,
            ugrip_pixel, fgrip_pixel;
        Pixmap ulabel, flabel, utitle, ftitle, uhandle, fhandle,
            ubutton, fbutton, pbutton, ugrip, fgrip;

        Window window, plate, title, label, handle, 
            right_grip, left_grip;

        int x, y, resize_x, resize_y, move_x, move_y, grab_x, grab_y,
            y_border, y_handle, save_x, save_y;
        unsigned int width, height, title_h, label_w, label_h, handle_h,
            button_w, button_h, grip_w, grip_h, mwm_border_w, border_h,
            bevel_w, resize_w, resize_h, snap_w, snap_h, move_ws;
    } frame;

    enum { F_NOINPUT = 0, F_PASSIVE, F_LOCALLYACTIVE, F_GLOBALLYACTIVE };

    void grabButtons();
	
    void createButton(int type, ButtonEventProc, ButtonEventProc, ButtonDrawProc);
    void startMoving(Window win);
    void stopMoving();
    void startResizing(XMotionEvent *me, bool left); 
    void stopResizing(Window win=0);
    void updateIcon();
	
    // Decoration functions
    void createTitlebar();
    void destroyTitlebar();
    void createHandle();
    void destroyHandle();
    void checkTransient();

    Window findTitleButton(int type);	

    //event callbacks
    static void stickyButton_cb(FluxboxWindow *, XButtonEvent *);
    static void stickyPressed_cb(FluxboxWindow *, XButtonEvent *);
    static void iconifyButton_cb(FluxboxWindow *, XButtonEvent *);
    static void iconifyPressed_cb(FluxboxWindow *, XButtonEvent *);
    static void maximizeButton_cb(FluxboxWindow *, XButtonEvent *);
    static void maximizePressed_cb(FluxboxWindow *, XButtonEvent *);
    static void closeButton_cb(FluxboxWindow *, XButtonEvent *);
    static void closePressed_cb(FluxboxWindow *, XButtonEvent *);
    static void shadeButton_cb(FluxboxWindow *, XButtonEvent *);
    //draw callbacks
    static void stickyDraw_cb(FluxboxWindow *, Window, bool);
    static void iconifyDraw_cb(FluxboxWindow *, Window, bool);
    static void maximizeDraw_cb(FluxboxWindow *, Window, bool);
    static void closeDraw_cb(FluxboxWindow *, Window, bool);
    static void shadeDraw_cb(FluxboxWindow *, Window, bool);
	
    static void grabButton(Display *display, unsigned int button, Window window, Cursor cursor);
    //button base draw... background 
    void drawButtonBase(Window, bool);
	
    bool getState();
    Window createToplevelWindow(int, int, unsigned int, unsigned int,
                                unsigned int);
    Window createChildWindow(Window, Cursor = None);

    void getWMName();
    void getWMIconName();
    void getWMNormalHints();
    void getWMProtocols();
    void getWMHints();
    void getMWMHints();
    void getBlackboxHints();
    void setNetWMAttributes();
    void associateClientWindow();
    void decorate();
    void decorateLabel();
    void positionButtons(bool redecorate_label = false);
    void positionWindows();
	
    void redrawLabel();
    void redrawAllButtons();
 
    void restoreGravity();
    void setGravityOffsets();
    void setState(unsigned long stateval);
    void upsize();
    void downsize();
    void right_fixsize(int * = 0, int * = 0);
    void left_fixsize(int * = 0, int * = 0);
};


#endif // WINDOW_HH