103 lines
2.9 KiB
C++
103 lines
2.9 KiB
C++
#include "qtmaterialsnackbar_internal.h"
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#include <QPropertyAnimation>
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#include "qtmaterialsnackbar.h"
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#include "lib/qtmaterialstatetransition.h"
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#include <QDebug>
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namespace md
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{
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SnackBarStateMachine::SnackBarStateMachine(SnackBar *parent)
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: QStateMachine(parent),
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m_snackbar(parent)
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{
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m_timer.setSingleShot(true);
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QState *hiddenState = new QState;
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QState *visibleState = new QState;
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QState *finalState = new QState;
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addState(hiddenState);
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addState(visibleState);
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addState(finalState);
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setInitialState(hiddenState);
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StateTransition *transition;
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transition = new StateTransition(SnackbarShowTransition);
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transition->setTargetState(visibleState);
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hiddenState->addTransition(transition);
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transition = new StateTransition(SnackbarHideTransition);
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transition->setTargetState(visibleState);
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hiddenState->addTransition(transition);
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transition = new StateTransition(SnackbarHideTransition);
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transition->setTargetState(finalState);
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visibleState->addTransition(transition);
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transition = new StateTransition(SnackbarWaitTransition);
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transition->setTargetState(hiddenState);
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finalState->addTransition(transition);
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transition = new StateTransition(SnackbarNextTransition);
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transition->setTargetState(visibleState);
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finalState->addTransition(transition);
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connect(visibleState, SIGNAL(propertiesAssigned()),
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this, SLOT(snackbarShown()));
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connect(finalState, SIGNAL(propertiesAssigned()),
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m_snackbar, SLOT(dequeue()));
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QPropertyAnimation *animation;
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animation = new QPropertyAnimation(this, "offset", this);
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animation->setEasingCurve(QEasingCurve::OutCubic);
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animation->setDuration(300);
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addDefaultAnimation(animation);
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hiddenState->assignProperty(this, "offset", 1);
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visibleState->assignProperty(this, "offset", 0);
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finalState->assignProperty(this, "offset", 1);
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connect(&m_timer, SIGNAL(timeout()), this, SLOT(progress()));
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m_snackbar->installEventFilter(this);
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}
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SnackBarStateMachine::~SnackBarStateMachine()
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{
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}
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bool SnackBarStateMachine::eventFilter(QObject *watched, QEvent *event)
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{
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if (QEvent::MouseButtonPress == event->type() && m_snackbar->clickToDismissMode()) {
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progress();
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}
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return QStateMachine::eventFilter(watched, event);
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}
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void SnackBarStateMachine::setOffset(qreal offset)
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{
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m_offset = offset;
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m_snackbar->update();
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}
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void SnackBarStateMachine::progress()
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{
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m_timer.stop();
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postEvent(new StateTransitionEvent(SnackbarHideTransition));
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if (m_snackbar->clickToDismissMode()) {
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m_snackbar->setAttribute(Qt::WA_TransparentForMouseEvents, true);
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}
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}
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void SnackBarStateMachine::snackbarShown()
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{
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m_timer.start(m_snackbar->autoHideDuration());
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if (m_snackbar->clickToDismissMode()) {
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m_snackbar->setAttribute(Qt::WA_TransparentForMouseEvents, false);
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}
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}
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}
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