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modelactionrootstate.cpp
/*
* Copyright 2013-2016 Canonical Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; version 3.
*
* 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authors:
* Nick Dedekind <nick.dedekind@canonical.com>
*/
#include "modelactionrootstate.h"
#include "indicators.h"
#include <ayatanamenumodel.h>
#include <QVariant>
#include <QIcon>
extern "C" {
#include <glib.h>
#include <gio/gio.h>
}
ModelActionRootState::ModelActionRootState(QObject *parent)
: RootStateObject(parent),
m_menu(nullptr)
, m_reentryGuard(false)
{
}
ModelActionRootState::~ModelActionRootState()
{
}
AyatanaMenuModel* ModelActionRootState::menu() const
{
return m_menu;
}
void ModelActionRootState::setMenu(AyatanaMenuModel* menu)
{
if (m_menu != menu) {
bool wasValid = valid();
if (m_menu) {
m_menu->disconnect(this);
}
m_menu = menu;
if (m_menu) {
connect(m_menu, &AyatanaMenuModel::rowsInserted, this, &ModelActionRootState::onModelRowsAdded);
connect(m_menu, &AyatanaMenuModel::rowsRemoved, this, &ModelActionRootState::onModelRowsRemoved);
connect(m_menu, &AyatanaMenuModel::dataChanged, this, &ModelActionRootState::onModelDataChanged);
connect(m_menu, &AyatanaMenuModel::destroyed, this, &ModelActionRootState::reset);
}
updateActionState();
updateOtherActions();
Q_EMIT menuChanged();
if (wasValid != valid())
Q_EMIT validChanged();
}
}
QString ModelActionRootState::secondaryAction() const
{
return m_secondaryAction;
}
QString ModelActionRootState::scrollAction() const
{
return m_scrollAction;
}
QString ModelActionRootState::submenuAction() const
{
return m_submenuAction;
}
bool ModelActionRootState::valid() const
{
return !currentState().empty();
}
void ModelActionRootState::onModelRowsAdded(const QModelIndex& parent, int start, int end)
{
Q_UNUSED(parent);
if (start == 0 && end >= 0) {
updateActionState();
updateOtherActions();
}
}
void ModelActionRootState::onModelRowsRemoved(const QModelIndex& parent, int start, int end)
{
Q_UNUSED(parent);
if (start == 0 && end >= 0) {
updateActionState();
updateOtherActions();
}
}
void ModelActionRootState::onModelDataChanged(const QModelIndex& topLeft, const QModelIndex& bottomRight, const QVector<int>& roles)
{
Q_UNUSED(roles);
if (!topLeft.isValid() || !bottomRight.isValid()) {
return;
}
if (topLeft.row() <= 0 && bottomRight.row() >= 0) {
updateActionState();
updateOtherActions();
}
}
void ModelActionRootState::reset()
{
m_menu = nullptr;
Q_EMIT menuChanged();
setCurrentState(QVariantMap());
updateOtherActions();
}
void ModelActionRootState::updateActionState()
{
if (m_reentryGuard) return;
m_reentryGuard = true;
if (m_menu && m_menu->rowCount() > 0) {
ActionStateParser* oldParser = m_menu->actionStateParser();
m_menu->setActionStateParser(&m_parser);
QVariantMap state = m_menu->get(0, "actionState").toMap();
m_menu->setActionStateParser(oldParser);
setCurrentState(state);
} else if (!m_menu) {
setCurrentState(QVariantMap());
}
// else if m_menu->rowCount() == 0, let's leave existing cache in place
// until the new menu comes in, to avoid flashing the UI empty for a moment
m_reentryGuard = false;
}
void ModelActionRootState::updateOtherActions()
{
if (m_reentryGuard) return;
m_reentryGuard = true;
if (m_menu && m_menu->rowCount() > 0) {
QVariantMap map;
map[QStringLiteral("submenu-action")] = QStringLiteral("string");
map[QStringLiteral("x-ayatana-scroll-action")] = QStringLiteral("string");
map[QStringLiteral("x-ayatana-secondary-action")] = QStringLiteral("string");
m_menu->loadExtendedAttributes(0, map);
QVariantMap extMap = m_menu->get(0, "ext").toMap();
QString secondaryAction = extMap.value(QStringLiteral("xAyatanaSecondaryAction")).toString();
if (m_secondaryAction != secondaryAction) {
m_secondaryAction = secondaryAction;
Q_EMIT secondaryActionChanged();
}
QString scrollAction = extMap.value(QStringLiteral("xAyatanaScrollAction")).toString();
if (m_scrollAction != scrollAction) {
m_scrollAction = scrollAction;
Q_EMIT scrollActionChanged();
}
QString submenuAction = extMap.value(QStringLiteral("submenuAction")).toString();
if (m_submenuAction != submenuAction) {
m_submenuAction = submenuAction;
Q_EMIT submenuActionChanged();
}
} else {
if (!m_secondaryAction.isEmpty()) {
m_secondaryAction.clear();
Q_EMIT secondaryActionChanged();
}
if (!m_scrollAction.isEmpty()) {
m_scrollAction.clear();
Q_EMIT scrollActionChanged();
}
if (!m_submenuAction.isEmpty()) {
m_submenuAction.clear();
Q_EMIT submenuActionChanged();
}
}
m_reentryGuard = false;
}