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refactor(capslockindicator): avoid overhead on OSX

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On OSX the indicator is disabled, so avoid most of the overhead by not
listening to any events that wouldn't lead to any change anyway.
This commit is contained in:
Colomban Wendling 2016-06-16 18:57:35 +02:00
parent 61892d0c18
commit 3454f96d4c
1 changed files with 14 additions and 5 deletions
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19
src/widget/capslockindicator.cpp
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@ -4,29 +4,41 @@
#endif
#include <QCoreApplication>
// It isn't needed for OSX, because it shows indicator by default
#if defined(QTOX_PLATFORM_EXT) && !defined(Q_OS_OSX)
#define ENABLE_CAPSLOCK_INDICATOR
#endif
CapsLockIndicator::EventHandler* CapsLockIndicator::eventHandler{nullptr};
CapsLockIndicator::CapsLockIndicator(QObject* parent) :
QAction(parent)
{
#ifndef ENABLE_CAPSLOCK_INDICATOR
setVisible(false);
#else
setIcon(QIcon(":img/caps_lock.svg"));
setToolTip(tr("CAPS-LOCK ENABLED"));
if (!eventHandler)
eventHandler = new EventHandler();
eventHandler->actions.append(this);
#endif
}
CapsLockIndicator::~CapsLockIndicator()
{
#ifdef ENABLE_CAPSLOCK_INDICATOR
eventHandler->actions.removeOne(this);
if (eventHandler->actions.isEmpty())
{
delete eventHandler;
eventHandler = nullptr;
}
#endif
}
#ifdef ENABLE_CAPSLOCK_INDICATOR
CapsLockIndicator::EventHandler::EventHandler()
{
QCoreApplication::instance()->installEventFilter(this);
@ -39,11 +51,7 @@ CapsLockIndicator::EventHandler::~EventHandler()
void CapsLockIndicator::EventHandler::updateActions(const QObject* object)
{
bool caps = false;
// It doesn't needed for OSX, because it shows indicator by default
#if defined(QTOX_PLATFORM_EXT) && !defined(Q_OS_OSX)
caps = Platform::capsLockEnabled();
#endif
bool caps = Platform::capsLockEnabled();
for (QAction* action : actions)
{
@ -69,3 +77,4 @@ bool CapsLockIndicator::EventHandler::eventFilter(QObject *obj, QEvent *event)
return QObject::eventFilter(obj, event);
}
#endif // ENABLE_CAPSLOCK_INDICATOR