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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Designer of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "signalsloteditor_plugin.h"
#include "signalsloteditor_tool.h"

#include <QtDesigner/abstractformeditor.h>
#include <QtDesigner/abstractformwindowmanager.h>

#include <QtGui/qaction.h>

QT_BEGIN_NAMESPACE

using namespace qdesigner_internal;

SignalSlotEditorPlugin::SignalSlotEditorPlugin() = default;

SignalSlotEditorPlugin::~SignalSlotEditorPlugin() = default;

bool SignalSlotEditorPlugin::isInitialized() const
{
    return m_initialized;
}

void SignalSlotEditorPlugin::initialize(QDesignerFormEditorInterface *core)
{
    Q_ASSERT(!isInitialized());

    m_action = new QAction(tr("Edit Signals/Slots"), this);
    m_action->setObjectName(QStringLiteral("__qt_edit_signals_slots_action"));
    m_action->setShortcut(tr("F4"));
    QIcon icon = QIcon::fromTheme(QStringLiteral("designer-edit-signals"),
                                  QIcon(core->resourceLocation() + QStringLiteral("/signalslottool.png")));
    m_action->setIcon(icon);
    m_action->setEnabled(false);

    setParent(core);
    m_core = core;
    m_initialized = true;

    connect(core->formWindowManager(), &QDesignerFormWindowManagerInterface::formWindowAdded,
            this, &SignalSlotEditorPlugin::addFormWindow);

    connect(core->formWindowManager(), &QDesignerFormWindowManagerInterface::formWindowRemoved,
            this, &SignalSlotEditorPlugin::removeFormWindow);

    connect(core->formWindowManager(), &QDesignerFormWindowManagerInterface::activeFormWindowChanged,
            this, &SignalSlotEditorPlugin::activeFormWindowChanged);
}

QDesignerFormEditorInterface *SignalSlotEditorPlugin::core() const
{
    return m_core;
}

void SignalSlotEditorPlugin::addFormWindow(QDesignerFormWindowInterface *formWindow)
{
    Q_ASSERT(formWindow != nullptr);
    Q_ASSERT(m_tools.contains(formWindow) == false);

    SignalSlotEditorTool *tool = new SignalSlotEditorTool(formWindow, this);
    connect(m_action, &QAction::triggered, tool->action(), &QAction::trigger);
    m_tools[formWindow] = tool;
    formWindow->registerTool(tool);
}

void SignalSlotEditorPlugin::removeFormWindow(QDesignerFormWindowInterface *formWindow)
{
    Q_ASSERT(formWindow != nullptr);
    Q_ASSERT(m_tools.contains(formWindow) == true);

    SignalSlotEditorTool *tool = m_tools.value(formWindow);
    m_tools.remove(formWindow);
    disconnect(m_action, &QAction::triggered, tool->action(), &QAction::trigger);
    // ### FIXME disable the tool

    delete tool;
}

QAction *SignalSlotEditorPlugin::action() const
{
    return m_action;
}

void SignalSlotEditorPlugin::activeFormWindowChanged(QDesignerFormWindowInterface *formWindow)
{
    m_action->setEnabled(formWindow != nullptr);
}

QT_END_NAMESPACE

#include "moc_signalsloteditor_plugin.cpp"