102 lines
3.2 KiB
C++
102 lines
3.2 KiB
C++
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/*
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MetaCmd - actual proc command scripts for internal meta and control activities
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Copyright (C) Lumiera.org
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2018, Hermann Vosseler <Ichthyostega@web.de>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of
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the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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* *****************************************************/
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/** @file meta-cmd.cpp
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** Actual definition of Proc-Layer command scripts for meta/ctrl actions.
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** Any actions issued by the UI-Layer to control internal application state
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** @todo WIP 8/2018 early draft
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**
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** @see cmd.hpp
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** @see command.hpp
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** @see command-def.hpp
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** @see cmd-context.hpp
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** @see SessionCommandFunction_test
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**
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*/
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#include "proc/cmd.hpp"
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#include "proc/control/command-def.hpp"
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//#include "proc/mobject/session.hpp"
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//#include "lib/symbol.hpp"
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#include "lib/idi/entry-id.hpp"
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//#include "lib/format-string.hpp"
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//#include <string>
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using lib::hash::LuidH;
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//using std::string;
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//using util::cStr;
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//using util::_Fmt;
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namespace proc {
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namespace cmd {
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namespace error = lumiera::error;
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//using mobject::Session;
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namespace { // implementation helper...
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}//(End) implementation helper
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/** instruct the session to start keeping the UI up-to-date through diff messages.
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* @remarks we assume the UI is _empty_ when issuing this command. Thus the session
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* will commence by sending a _population diff_, to reflect all the UI relevant
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* structures currently present within the session data. Moreover, from that point
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* on, any changes within the session structure and contents will be reflected by
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* pushing appropriate diff messages upwards through the GuiNotification façade.
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* @note to UNDO this action means to waive the live-update state. In addition,
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* the session will push up a status change to mark the session-root as defunct.
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*/
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COMMAND_DEFINITION (meta_activateContentDiff)
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{
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def.operation ([]()
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{
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TODO ("send a population diff starting from scratch");
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TODO ("activate life-update service within the session");
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})
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.captureUndo ([]() -> bool
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{
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return false;
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})
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.undoOperation ([](bool wasActive)
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{
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if (not wasActive)
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{
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UNIMPLEMENTED ("send a status update diff into the root node, to mark it as defunct");
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}
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});
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};
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/** more to come here...*/
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}} // namespace proc::cmd
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