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author | Olivier Tilloy <olivier.tilloy@canonical.com> | 2012-10-05 13:26:10 +0000 |
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committer | Tarmac <> | 2012-10-05 13:26:10 +0000 |
commit | c3fbab270f60fc374bae50e787e0b2046f127a07 (patch) | |
tree | 61d0eae8f1c1e3d23fb6559cb19e920b167b187c /libqmenumodel/src/qstateaction.cpp | |
parent | 7961150ad1eaa1b3bc62d5215e274a7b58b0ef72 (diff) | |
parent | 696fba50395807c344325af11e71ec74cf370c3d (diff) | |
download | qmenumodel-c3fbab270f60fc374bae50e787e0b2046f127a07.tar.gz qmenumodel-c3fbab270f60fc374bae50e787e0b2046f127a07.tar.bz2 qmenumodel-c3fbab270f60fc374bae50e787e0b2046f127a07.zip |
Tweaks to the structure of the code, and added example code.. Approved by Renato Araujo Oliveira Filho, jenkins.
Diffstat (limited to 'libqmenumodel/src/qstateaction.cpp')
-rw-r--r-- | libqmenumodel/src/qstateaction.cpp | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/libqmenumodel/src/qstateaction.cpp b/libqmenumodel/src/qstateaction.cpp new file mode 100644 index 0000000..3629fce --- /dev/null +++ b/libqmenumodel/src/qstateaction.cpp @@ -0,0 +1,145 @@ +/* + * Copyright 2012 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: + * Renato Araujo Oliveira Filho <renato@canonical.com> + */ + +#include "qstateaction.h" + +#include "qdbusactiongroup.h" + +/*! + \qmlclass QStateAction + \inherits QAction + + \brief A QStateAction implementation to be used with \l QDBusActionGroup + + \bold {This component is under heavy development.} + + This class can be used as a proxy for an action that is exported over D-Bus + + \code + QDBusActionGroup { + id: actionGroup + busType: 1 + busName: "com.ubuntu.menu" + objectPath: "com/ubuntu/menu/actions" + } + + Button { + visible: actionGroup.getAction("button.bvisible").status + } + \endcode +*/ + +/*! \internal */ +QStateAction::QStateAction(QDBusActionGroup *group, const QString &name) + : QAction(name, group), + m_group(group) +{ + QObject::connect(this, SIGNAL(triggered()), this, SLOT(onTriggered())); + + // This keep the code clean + // But maybe we need move the action state control to QActionGroup to optimizations + QObject::connect(m_group, SIGNAL(actionAppear(QString)), + this, SLOT(onActionAppear(QString))); + QObject::connect(m_group, SIGNAL(actionVanish(QString)), + this, SLOT(onActionVanish(QString))); + QObject::connect(m_group, SIGNAL(actionStateChanged(QString,QVariant)), + this, SLOT(onActionStateChanged(QString,QVariant))); + + + + bool isValid = m_group->hasAction(name); + setValid(isValid); + if (isValid) { + setState(m_group->actionState(name)); + } +} + +/*! + \qmlproperty int QStateAction::state + This property holds the current action state +*/ +QVariant QStateAction::state() const +{ + return m_state; +} + +/*! + \qmlproperty int QStateAction::isValid + This property return if the current Action is valid or not + A valid Action is a action which has a DBus action linked +*/ +bool QStateAction::isValid() const +{ + return m_valid; +} + +void QStateAction::updateState(const QVariant &state) +{ + m_group->updateActionState(text(), state); +} + +/*! \internal */ +void QStateAction::setValid(bool valid) +{ + if (m_valid != valid) { + m_valid = valid; + Q_EMIT validChanged(m_valid); + } +} + +/*! \internal */ +void QStateAction::setState(const QVariant &state) +{ + if (m_state != state) { + m_state = state; + Q_EMIT stateChanged(m_state); + } +} + +/*! \internal */ +void QStateAction::onTriggered() +{ + updateState(QVariant()); +} + +/*! \internal */ +void QStateAction::onActionAppear(const QString &name) +{ + if (text() == name) { + setState(m_group->actionState(name)); + setValid(true); + } +} + +/*! \internal */ +void QStateAction::onActionVanish(const QString &name) +{ + if (text() == name) { + setState(QVariant()); + setValid(false); + } +} + +/*! \internal */ +void QStateAction::onActionStateChanged(const QString &name, const QVariant &state) +{ + if (text() == name) { + setState(state); + } +} |