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/*
* Copyright (C) 2012 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authored by: Gord Allott <gord.allott@canonical.com>>
*/
#include "PreviewStateMachine.h"
#include <NuxCore/Logger.h>
namespace unity
{
namespace dash
{
namespace
{
nux::logging::Logger logger("unity.dash.PreviewStateMachine");
}
PreviewStateMachine::PreviewStateMachine()
: preview_active(false)
, left_results(-1)
, right_results(-1)
, stored_preview_(nullptr)
, requires_activation_(true)
{
for (int pos = SplitPosition::START; pos != SplitPosition::END; pos++)
{
split_positions_[pos] = -1;
}
left_results.changed.connect([&] (int value) { CheckPreviewRequirementsFulfilled();});
right_results.changed.connect([&] (int value) { CheckPreviewRequirementsFulfilled();});
}
PreviewStateMachine::~PreviewStateMachine()
{
}
void PreviewStateMachine::ActivatePreview(Preview::Ptr preview)
{
stored_preview_ = preview;
CheckPreviewRequirementsFulfilled();
left_results = -1;
right_results = -1;
requires_activation_ = true;
}
void PreviewStateMachine::Reset()
{
left_results = -1;
right_results = -1;
stored_preview_ = nullptr;
requires_activation_ = true;
}
void PreviewStateMachine::ClosePreview()
{
stored_preview_ = nullptr;
preview_active = true;
SetSplitPosition(SplitPosition::CONTENT_AREA, -1);
}
void PreviewStateMachine::SetSplitPosition(SplitPosition position, int coord)
{
split_positions_[static_cast<int>(position)] = coord;
CheckPreviewRequirementsFulfilled();
}
int PreviewStateMachine::GetSplitPosition(SplitPosition position)
{
return split_positions_[static_cast<int>(position)];
}
void PreviewStateMachine::CheckPreviewRequirementsFulfilled()
{
if (!requires_activation_)
return;
if (stored_preview_ == nullptr)
return;
/* right now this is disabled as long as we aren't doing the fancy splitting animation
* as we don't care about positions
*
if (GetSplitPosition(CONTENT_AREA) < 0) return;
if (GetSplitPosition(FILTER_BAR) < 0) return;
if (GetSplitPosition(LENS_BAR) < 0) return;
if (GetSplitPosition(SEARCH_BAR) < 0) return;
*/
if (left_results < 0 ||
right_results < 0)
return;
LOG_DEBUG(logger) << "activating preview: " << left_results << " - " << right_results;
preview_active = true;
PreviewActivated(stored_preview_);
requires_activation_ = false;
}
}
}
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