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/*
propertywidget.cpp
This file is part of GammaRay, the Qt application inspection and manipulation tool.
SPDX-FileCopyrightText: 2010 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
Author: Volker Krause <volker.krause@kdab.com>
SPDX-License-Identifier: GPL-2.0-or-later
Contact KDAB at <info@kdab.com> for commercial licensing options.
*/
#include "propertywidget.h"
#include "common/endpoint.h"
#include "common/objectbroker.h"
#include "common/propertycontrollerinterface.h"
#include <QCoreApplication>
#include <QTimer>
#include <algorithm>
using namespace GammaRay;
QVector<PropertyWidgetTabFactoryBase *> PropertyWidget::s_tabFactories = QVector<PropertyWidgetTabFactoryBase *>();
QVector<PropertyWidget *> PropertyWidget::s_propertyWidgets;
PropertyWidget::PropertyWidget(QWidget *parent)
: QTabWidget(parent)
, m_tabsUpdatedTimer(new QTimer(this))
, m_lastManuallySelectedWidget(nullptr)
, m_controller(nullptr)
{
m_tabsUpdatedTimer->setInterval(100);
m_tabsUpdatedTimer->setSingleShot(true);
s_propertyWidgets.push_back(this);
connect(this, &QTabWidget::currentChanged, this, &PropertyWidget::slotCurrentTabChanged);
connect(m_tabsUpdatedTimer, &QTimer::timeout, this, &PropertyWidget::tabsUpdated);
}
PropertyWidget::~PropertyWidget()
{
const int index = s_propertyWidgets.indexOf(this);
if (index >= 0)
s_propertyWidgets.remove(index);
}
QString PropertyWidget::objectBaseName() const
{
Q_ASSERT(!m_objectBaseName.isEmpty());
return m_objectBaseName;
}
void PropertyWidget::setObjectBaseName(const QString &baseName)
{
Q_ASSERT(m_objectBaseName.isEmpty()); // ideally the object base name would be a ctor argument, but then this doesn't work in Designer anymore
m_objectBaseName = baseName;
if (Endpoint::instance()->objectAddress(baseName + ".controller")
== Protocol::InvalidObjectAddress)
return; // unknown property controller, likely disabled/not supported on the server
if (m_controller)
disconnect(m_controller, &PropertyControllerInterface::availableExtensionsChanged, this,
&PropertyWidget::updateShownTabs);
m_controller = ObjectBroker::object<PropertyControllerInterface *>(
m_objectBaseName + ".controller");
connect(m_controller, &PropertyControllerInterface::availableExtensionsChanged, this, &PropertyWidget::updateShownTabs);
updateShownTabs();
}
static void propertyWidgetCleanup()
{
PropertyWidget::cleanupTabs();
}
void PropertyWidget::registerTab(PropertyWidgetTabFactoryBase *factory)
{
if (s_tabFactories.isEmpty())
qAddPostRoutine(propertyWidgetCleanup);
s_tabFactories.push_back(factory);
for (PropertyWidget *widget : std::as_const(s_propertyWidgets))
widget->updateShownTabs();
}
void PropertyWidget::cleanupTabs()
{
qDeleteAll(s_tabFactories);
}
void PropertyWidget::createWidgets()
{
if (m_objectBaseName.isEmpty())
return;
for (PropertyWidgetTabFactoryBase *factory : std::as_const(s_tabFactories)) {
if (!factoryInUse(factory) && extensionAvailable(factory)) {
const PageInfo pi = { factory, factory->createWidget(this) };
m_pages.push_back(pi);
}
}
std::sort(m_pages.begin(), m_pages.end(), [](const PageInfo &lhs, const PageInfo &rhs) -> bool {
if (lhs.factory->priority() == rhs.factory->priority())
return s_tabFactories.indexOf(lhs.factory) < s_tabFactories.indexOf(rhs.factory);
return lhs.factory->priority() < rhs.factory->priority();
});
}
void PropertyWidget::updateShownTabs()
{
setUpdatesEnabled(false);
createWidgets();
// we distinguish between the last selected tab, and the last one that
// was explicitly selected. The latter might be temporarily hidden, but
// we will try to restore it when it becomes available again.
auto prevManuallySelected = m_lastManuallySelectedWidget;
auto prevSelectedWidget = currentWidget();
int tabIt = 0;
for (const auto &page : std::as_const(m_pages)) {
const int index = indexOf(page.widget);
if (extensionAvailable(page.factory)) {
if (index != tabIt)
removeTab(index);
insertTab(tabIt, page.widget, page.factory->label());
++tabIt;
} else if (index != -1) {
removeTab(index);
}
}
// try to restore selection
if (!prevSelectedWidget) // first time
setCurrentIndex(0);
else if (indexOf(prevManuallySelected) >= 0)
setCurrentWidget(prevManuallySelected);
else if (indexOf(prevSelectedWidget) >= 0)
setCurrentWidget(prevSelectedWidget);
// reset to last user selection as this possibly
// changed as a result of the reording above
m_lastManuallySelectedWidget = prevManuallySelected;
setUpdatesEnabled(true);
m_tabsUpdatedTimer->start(); // use a timer to group chained registrations.
}
bool PropertyWidget::extensionAvailable(PropertyWidgetTabFactoryBase *factory) const
{
return m_controller->availableExtensions().contains(m_objectBaseName + '.' + factory->name());
}
bool PropertyWidget::factoryInUse(PropertyWidgetTabFactoryBase *factory) const
{
return std::find_if(m_pages.begin(), m_pages.end(), [factory](const PageInfo &pi) {
return pi.factory == factory;
})
!= m_pages.end();
}
void PropertyWidget::slotCurrentTabChanged()
{
m_lastManuallySelectedWidget = currentWidget();
}
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