src/WindowCmd.hh (raw)
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// WindowCmd.hh // Copyright (c) 2005 - 2006 Fluxbox Team (fluxgen at fluxbox dot org) // // 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. #ifndef WINDOWCMD_HH #define WINDOWCMD_HH #include "FbTk/Command.hh" #include "FbTk/Accessor.hh" #include "Window.hh" #include "WinClient.hh" /// holds context for WindowCmd class WindowCmd_base { public: // some window commands (e.g. close, kill, detach) need to know which client // the command refers to, so we store it here as well, in case it is not the // current client (selected from workspace menu, for example) static void setWindow(FluxboxWindow *win) { s_win = win; s_client = (win ? &win->winClient() : 0); } static void setClient(WinClient *client) { s_client = client; s_win = (client ? client->fbwindow() : 0); } static FluxboxWindow *window() { return s_win; } static WinClient *client() { return s_client; } protected: static FluxboxWindow *s_win; static WinClient *s_client; }; /// executes action for a dynamic context set in WindowCmd_base template <typename ReturnType=void> class WindowCmd: public WindowCmd_base, public FbTk::Command<void> { public: typedef ReturnType (FluxboxWindow::* Action)(); WindowCmd(Action a):m_action(a) {} void execute() { if (window() != 0) (*window().*m_action)(); } private: Action m_action; }; /// accesses values in current window template <typename Ret, typename Def=Ret> class WindowAccessor: public FbTk::Accessor<Ret> { public: typedef Ret (FluxboxWindow:: *Getter)() const; typedef void (FluxboxWindow:: *Setter)(Ret); WindowAccessor(Getter g, Setter s, Def def): m_getter(g), m_setter(s), m_def(def) { } operator Ret() const { FluxboxWindow *fbwin = WindowCmd<void>::window(); return fbwin ? (fbwin->*m_getter)() : m_def; } FbTk::Accessor<Ret> &operator =(const Ret &val) { FluxboxWindow *fbwin = WindowCmd<void>::window(); if (fbwin) (fbwin->*m_setter)(val); return *this; } private: Getter m_getter; Setter m_setter; Def m_def; }; /// same as above but only reads template <typename Ret, typename Def=Ret> class ConstWindowAccessor: public FbTk::Accessor<Ret> { public: typedef Ret (FluxboxWindow:: *Getter)() const; ConstWindowAccessor(Getter g, Def def): m_getter(g), m_def(def) { } operator Ret() const { FluxboxWindow *fbwin = WindowCmd<void>::window(); return fbwin ? (fbwin->*m_getter)() : m_def; } FbTk::Accessor<Ret> &operator =(const Ret &val) { return *this; } private: Getter m_getter; Def m_def; }; #endif // WINDOWCMD_HH |