snapshot

mainwindow.cpp

@@ -245,6 +245,12 @@ MainWindow::MainWindow(QWidget *parent)
 
     connect(btn, SIGNAL(pressed()), this, SLOT(hello()));
 
+    btn = new QPushButton;
+    btn->setText("Show instant Snackbar");
+    layout->addWidget(btn);
+
+    connect(btn, SIGNAL(pressed()), this, SLOT(hello2()));
+
 
     {
         im->addMenuItem("C");
@@ -1063,5 +1069,18 @@ void MainWindow::hello()
     static int n = 0;
     ++n;
     //snackbar->addMessage(QString("Hello from the Snackbar (%1)").arg(n));
-    snackbar2->addMessage(QString("Hello from the Snackbar (%1)").arg(n));
+    //snackbar2->addMessage(QString("Hello from the Snackbar (%1)").arg(n));
+    //snackbar2->setBoxWidth(80);
+
+    snackbar2->addMessage(QString(
+      "License shall mean the terms and conditions for use, reproduction,"
+      "and distribution as defined by Sections 1 through 9 of this document."
+    ));
+}
+
+void MainWindow::hello2()
+{
+    snackbar2->addInstantMessage(QString(
+      "and distribution as defined by Sections 1 through 9 of this document."
+    ));
 }

mainwindow.h

@@ -28,6 +28,7 @@ protected slots:
     void button3Pressed();
     void button4Pressed();
     void hello();
+    void hello2();
 
 private:
     void _initMenu() const;

qt-material-widgets.pro

@@ -135,7 +135,8 @@ SOURCES += main.cpp\
     xx/qtmaterialtoggle_internal.cpp \
     yy/togglesettingseditor.cpp \
     xx/qtmaterialsnackbar.cpp \
-    xx/qtmaterialsnackbar_internal.cpp
+    xx/qtmaterialsnackbar_internal.cpp \
+    xxlib/qtmaterialstatetransition.cpp
 
 HEADERS  += mainwindow.h \
     components/appbar.h \
@@ -308,7 +309,9 @@ HEADERS  += mainwindow.h \
     yy/togglesettingseditor.h \
     xx/qtmaterialsnackbar.h \
     xx/qtmaterialsnackbar_p.h \
-    xx/qtmaterialsnackbar_internal.h
+    xx/qtmaterialsnackbar_internal.h \
+    xxlib/qtmaterialstatetransitionevent.h \
+    xxlib/qtmaterialstatetransition.h
 
 RESOURCES += \
     resources.qrc

xx/qtmaterialcollapsiblemenu.cpp

@@ -7,6 +7,7 @@
 #include "xx/qtmaterialmenuitem.h"
 #include "xx/qtmaterialscrollbar.h"
 #include "xxlib/qtmaterialstyle.h"
+#include "xxlib/qtmaterialstatetransitionevent.h"
 
 /*!
  *  \class QtMaterialCollapsibleMenuPrivate
@@ -197,7 +198,7 @@ void QtMaterialCollapsibleMenu::collapse()
     Q_D(QtMaterialCollapsibleMenu);
 
     d->proxyStack->setCurrentIndex(1);
-    emit d->proxy->collapse();
+    d->stateMachine->postEvent(new QtMaterialStateTransitionEvent(CollapsibleMenuCollapse));
     emit aboutToCollapse();
 }
 
@@ -206,7 +207,7 @@ void QtMaterialCollapsibleMenu::expand()
     Q_D(QtMaterialCollapsibleMenu);
 
     d->proxyStack->setCurrentIndex(1);
-    emit d->proxy->expand();
+    d->stateMachine->postEvent(new QtMaterialStateTransitionEvent(CollapsibleMenuExpand));
     emit aboutToExpand();
 }
 

xx/qtmaterialcollapsiblemenu_internal.cpp

@@ -1,9 +1,9 @@
 #include "xx/qtmaterialcollapsiblemenu_internal.h"
-#include <QSignalTransition>
 #include <QPropertyAnimation>
 #include <QPixmap>
 #include <QPainter>
 #include "xx/qtmaterialcollapsiblemenu.h"
+#include "xxlib/qtmaterialstatetransition.h"
 
 /*!
  *  \class QtMaterialCollapsibleMenuStateMachine
@@ -29,9 +29,9 @@ QtMaterialCollapsibleMenuStateMachine::QtMaterialCollapsibleMenuStateMachine(
     addState(m_collapsedState);
     setInitialState(m_collapsedState);
 
-    QSignalTransition *transition;
+    QtMaterialStateTransition *transition;
 
-    transition = new QSignalTransition(m_proxy, SIGNAL(expand()));
+    transition = new QtMaterialStateTransition(CollapsibleMenuExpand);
     transition->setTargetState(m_expandedState);
     m_collapsedState->addTransition(transition);
 
@@ -47,7 +47,7 @@ QtMaterialCollapsibleMenuStateMachine::QtMaterialCollapsibleMenuStateMachine(
     m_expandYAnimation->setEasingCurve(QEasingCurve::OutElastic);
     transition->addAnimation(m_expandYAnimation);
 
-    transition = new QSignalTransition(m_proxy, SIGNAL(collapse()));
+    transition = new QtMaterialStateTransition(CollapsibleMenuCollapse);
     transition->setTargetState(m_collapsedState);
     m_expandedState->addTransition(transition);
 

xx/qtmaterialcollapsiblemenu_internal.h

@@ -94,9 +94,9 @@ public:
     inline void setOpacity(qreal opacity);
     inline qreal opacity() const;
 
-signals:
-    void expand();
-    void collapse();
+//signals:
+//    void expand();
+//    void collapse();
 
 protected:
     void paintEvent(QPaintEvent *event) Q_DECL_OVERRIDE;

xx/qtmaterialflatbutton.cpp

@@ -405,7 +405,6 @@ void QtMaterialFlatButton::setCheckable(bool value)
     Q_D(QtMaterialFlatButton);
 
     d->stateMachine->updateCheckedStatus();
-    d->stateMachine->setCheckedOverlayProgress(0);
 
     QPushButton::setCheckable(value);
 }

xx/qtmaterialflatbutton_internal.cpp

@@ -1,10 +1,10 @@
 #include "xx/qtmaterialflatbutton_internal.h"
 #include <QEventTransition>
-#include <QSignalTransition>
 #include <QPropertyAnimation>
 #include <QFocusEvent>
 #include <QSequentialAnimationGroup>
 #include "xx/qtmaterialflatbutton.h"
+#include "xxlib/qtmaterialstatetransition.h"
 
 /*!
  *  \class QtMaterialFlatButtonStateMachine
@@ -42,10 +42,10 @@ QtMaterialFlatButtonStateMachine::QtMaterialFlatButtonStateMachine(QtMaterialFla
 
     m_checkableState->setInitialState(parent->isChecked() ? m_checkedState
                                                           : m_uncheckedState);
-    QSignalTransition *transition;
+    QtMaterialStateTransition *transition;
     QPropertyAnimation *animation;
 
-    transition = new QSignalTransition(this, SIGNAL(buttonChecked()));
+    transition = new QtMaterialStateTransition(FlatButtonCheckedTransition);
     transition->setTargetState(m_checkedState);
     m_uncheckedState->addTransition(transition);
 
@@ -53,7 +53,7 @@ QtMaterialFlatButtonStateMachine::QtMaterialFlatButtonStateMachine(QtMaterialFla
     animation->setDuration(200);
     transition->addAnimation(animation);
 
-    transition = new QSignalTransition(this, SIGNAL(buttonUnchecked()));
+    transition = new QtMaterialStateTransition(FlatButtonUncheckedTransition);
     transition->setTargetState(m_uncheckedState);
     m_checkedState->addTransition(transition);
 
@@ -69,7 +69,11 @@ QtMaterialFlatButtonStateMachine::QtMaterialFlatButtonStateMachine(QtMaterialFla
     addTransition(m_button, QEvent::Leave, m_hoveredFocusedState, m_neutralFocusedState);
     addTransition(m_button, QEvent::FocusIn, m_hoveredState, m_hoveredFocusedState);
     addTransition(m_button, QEvent::FocusOut, m_hoveredFocusedState, m_hoveredState);
-    addTransition(this, SIGNAL(buttonPressed()), m_hoveredState, m_pressedState);
+
+    transition = new QtMaterialStateTransition(FlatButtonPressedTransition);
+    transition->setTargetState(m_pressedState);
+    m_hoveredState->addTransition(transition);
+
     addTransition(m_button, QEvent::Leave, m_pressedState, m_neutralFocusedState);
     addTransition(m_button, QEvent::FocusOut, m_pressedState, m_hoveredState);
 
@@ -111,9 +115,9 @@ void QtMaterialFlatButtonStateMachine::setOverlayOpacity(qreal opacity)
     m_button->update();
 }
 
-void QtMaterialFlatButtonStateMachine::setCheckedOverlayProgress(qreal opacity)
+void QtMaterialFlatButtonStateMachine::setCheckedOverlayProgress(qreal progress)
 {
-    m_checkedOverlayProgress = opacity;
+    m_checkedOverlayProgress = progress;
     m_button->update();
 }
 
@@ -175,9 +179,9 @@ void QtMaterialFlatButtonStateMachine::updateCheckedStatus()
     if (m_wasChecked != checked) {
         m_wasChecked = checked;
         if (checked) {
-            emit buttonChecked();
+            postEvent(new QtMaterialStateTransitionEvent(FlatButtonCheckedTransition));
         } else {
-            emit buttonUnchecked();
+            postEvent(new QtMaterialStateTransitionEvent(FlatButtonUncheckedTransition));
         }
     }
 }
@@ -188,21 +192,13 @@ bool QtMaterialFlatButtonStateMachine::eventFilter(QObject *watched,
     if (QEvent::FocusIn == event->type()) {
         QFocusEvent *focusEvent = static_cast<QFocusEvent *>(event);
         if (focusEvent && Qt::MouseFocusReason == focusEvent->reason()) {
-            emit buttonPressed();
+            postEvent(new QtMaterialStateTransitionEvent(FlatButtonPressedTransition));
             return true;
         }
     }
     return QStateMachine::eventFilter(watched, event);
 }
 
-void QtMaterialFlatButtonStateMachine::addTransition(QObject *object,
-                                                     const char *signal,
-                                                     QState *fromState,
-                                                     QState *toState)
-{
-    addTransition(new QSignalTransition(object, signal), fromState, toState);
-}
-
 void QtMaterialFlatButtonStateMachine::addTransition(QObject *object,
                                                      QEvent::Type eventType,
                                                      QState *fromState,

xx/qtmaterialflatbutton_internal.h

@@ -24,7 +24,7 @@ public:
     void setOverlayOpacity(qreal opacity);
     inline qreal overlayOpacity() const;
 
-    void setCheckedOverlayProgress(qreal opacity);
+    void setCheckedOverlayProgress(qreal progress);
     inline qreal checkedOverlayProgress() const;
 
     void setHaloOpacity(qreal opacity);
@@ -51,7 +51,6 @@ protected:
 private:
     Q_DISABLE_COPY(QtMaterialFlatButtonStateMachine)
 
-    void addTransition(QObject *object, const char *signal, QState *fromState, QState *toState);
     void addTransition(QObject *object, QEvent::Type eventType, QState *fromState, QState *toState);
     void addTransition(QAbstractTransition *transition, QState *fromState, QState *toState);
 

xx/qtmaterialslider.cpp

@@ -4,6 +4,7 @@
 #include <QMouseEvent>
 #include "xx/qtmaterialslider_internal.h"
 #include "xxlib/qtmaterialstyle.h"
+#include "xxlib/qtmaterialstatetransitionevent.h"
 
 /*!
  *  \class QtMaterialSliderPrivate
@@ -108,9 +109,9 @@ void QtMaterialSliderPrivate::setHovered(bool status)
 
     if (!q->hasFocus()) {
         if (status) {
-            emit stateMachine->noFocusMouseEnter();
+            stateMachine->postEvent(new QtMaterialStateTransitionEvent(SliderNoFocusMouseEnter));
         } else {
-            emit stateMachine->noFocusMouseLeave();
+            stateMachine->postEvent(new QtMaterialStateTransitionEvent(SliderNoFocusMouseLeave));
         }
     }
 
@@ -254,12 +255,12 @@ void QtMaterialSlider::sliderChange(SliderChange change)
     {
         if (minimum() == value()) {
             triggerAction(SliderToMinimum);
-            emit d->stateMachine->changedToMinimum();
+            d->stateMachine->postEvent(new QtMaterialStateTransitionEvent(SliderChangedToMinimum));
         } else if (maximum() == value()) {
             triggerAction(SliderToMaximum);
         }
         if (minimum() == d->oldValue) {
-            emit d->stateMachine->changedFromMinimum();
+            d->stateMachine->postEvent(new QtMaterialStateTransitionEvent(SliderChangedFromMinimum));
         }
         d->oldValue = value();
     }

xx/qtmaterialslider_internal.cpp

@@ -7,6 +7,7 @@
 #include <QPainter>
 #include "xx/qtmaterialslider.h"
 #include "xxlib/qtmaterialstyle.h"
+#include "xxlib/qtmaterialstatetransition.h"
 
 /*!
  *  \class QtMaterialSliderStateMachine
@@ -49,18 +50,19 @@ QtMaterialSliderStateMachine::QtMaterialSliderStateMachine(
     m_slidingState->assignProperty(thumb, "diameter", 17);
 
     QAbstractTransition *transition;
+    QtMaterialStateTransition *customTransition;
     QPropertyAnimation *animation;
 
     // Show halo on mouse enter
 
-    transition = new QSignalTransition(this, SIGNAL(noFocusMouseEnter()));
-    transition->setTargetState(m_focusState);
+    customTransition = new QtMaterialStateTransition(SliderNoFocusMouseEnter);
+    customTransition->setTargetState(m_focusState);
 
     animation = new QPropertyAnimation(thumb, "haloSize", this);
     animation->setEasingCurve(QEasingCurve::InOutSine);
-    transition->addAnimation(animation);
-    transition->addAnimation(new QPropertyAnimation(track, "fillColor", this));
-    m_inactiveState->addTransition(transition);
+    customTransition->addAnimation(animation);
+    customTransition->addAnimation(new QPropertyAnimation(track, "fillColor", this));
+    m_inactiveState->addTransition(customTransition);
 
     // Show halo on focus in
 
@@ -86,14 +88,14 @@ QtMaterialSliderStateMachine::QtMaterialSliderStateMachine(
 
     // Hide halo on mouse leave, except if widget has focus
 
-    transition = new QSignalTransition(this, SIGNAL(noFocusMouseLeave()));
-    transition->setTargetState(m_inactiveState);
+    customTransition = new QtMaterialStateTransition(SliderNoFocusMouseLeave);
+    customTransition->setTargetState(m_inactiveState);
 
     animation = new QPropertyAnimation(thumb, "haloSize", this);
     animation->setEasingCurve(QEasingCurve::InOutSine);
-    transition->addAnimation(animation);
-    transition->addAnimation(new QPropertyAnimation(track, "fillColor", this));
-    m_focusState->addTransition(transition);
+    customTransition->addAnimation(animation);
+    customTransition->addAnimation(new QPropertyAnimation(track, "fillColor", this));
+    m_focusState->addTransition(customTransition);
 
     // Pulse in
 
@@ -150,47 +152,47 @@ QtMaterialSliderStateMachine::QtMaterialSliderStateMachine(
 
     m_sndState->setInitialState(m_minState);
 
-    transition = new QSignalTransition(this, SIGNAL(changedFromMinimum()));
-    transition->setTargetState(m_normalState);
+    customTransition = new QtMaterialStateTransition(SliderChangedFromMinimum);
+    customTransition->setTargetState(m_normalState);
 
     animation = new QPropertyAnimation(thumb, "fillColor", this);
     animation->setDuration(200);
-    transition->addAnimation(animation);
+    customTransition->addAnimation(animation);
 
     animation = new QPropertyAnimation(thumb, "haloColor", this);
     animation->setDuration(300);
-    transition->addAnimation(animation);
+    customTransition->addAnimation(animation);
 
     animation = new QPropertyAnimation(thumb, "borderColor", this);
     animation->setDuration(200);
-    transition->addAnimation(animation);
+    customTransition->addAnimation(animation);
 
     animation = new QPropertyAnimation(thumb, "borderWidth", this);
     animation->setDuration(200);
-    transition->addAnimation(animation);
+    customTransition->addAnimation(animation);
 
-    m_minState->addTransition(transition);
+    m_minState->addTransition(customTransition);
 
-    transition = new QSignalTransition(this, SIGNAL(changedToMinimum()));
-    transition->setTargetState(m_minState);
+    customTransition = new QtMaterialStateTransition(SliderChangedToMinimum);
+    customTransition->setTargetState(m_minState);
 
     animation = new QPropertyAnimation(thumb, "fillColor", this);
     animation->setDuration(200);
-    transition->addAnimation(animation);
+    customTransition->addAnimation(animation);
 
     animation = new QPropertyAnimation(thumb, "haloColor", this);
     animation->setDuration(300);
-    transition->addAnimation(animation);
+    customTransition->addAnimation(animation);
 
     animation = new QPropertyAnimation(thumb, "borderColor", this);
     animation->setDuration(200);
-    transition->addAnimation(animation);
+    customTransition->addAnimation(animation);
 
     animation = new QPropertyAnimation(thumb, "borderWidth", this);
     animation->setDuration(200);
-    transition->addAnimation(animation);
+    customTransition->addAnimation(animation);
 
-    m_normalState->addTransition(transition);
+    m_normalState->addTransition(customTransition);
 
     setupProperties();
 }

xx/qtmaterialslider_internal.h

@@ -20,11 +20,11 @@ public:
 
     void setupProperties();
 
-signals:
-    void changedToMinimum();
-    void changedFromMinimum();
-    void noFocusMouseEnter();
-    void noFocusMouseLeave();
+//signals:
+//    void changedToMinimum();
+//    void changedFromMinimum();
+//    void noFocusMouseEnter();
+//    void noFocusMouseLeave();
 
 private:
     Q_DISABLE_COPY(QtMaterialSliderStateMachine)

xx/qtmaterialsnackbar.cpp

@@ -2,8 +2,11 @@
 #include "xx/qtmaterialsnackbar_p.h"
 #include <QApplication>
 #include <QPainter>
+#include <QFontDatabase>
 #include "xx/qtmaterialsnackbar_internal.h"
 #include "xxlib/qtmaterialstyle.h"
+#include "xxlib/qtmaterialstatetransition.h"
+#include <QDebug>
 
 /*!
  *  \class QtMaterialSnackbarPrivate
@@ -24,12 +27,19 @@ void QtMaterialSnackbarPrivate::init()
     Q_Q(QtMaterialSnackbar);
 
     stateMachine   = new QtMaterialSnackbarStateMachine(q);
+    bgOpacity      = 0.9;
     duration       = 3000;
     boxWidth       = 300;
+    clickDismiss   = false;
     useThemeColors = true;
 
     q->setAttribute(Qt::WA_TransparentForMouseEvents);
 
+    QFontDatabase db;
+    QFont font(db.font("Roboto", "Medium", 10));
+    font.setCapitalization(QFont::AllUppercase);
+    q->setFont(font);
+
     stateMachine->start();
     QCoreApplication::processEvents();
 }
@@ -101,6 +111,21 @@ QColor QtMaterialSnackbar::backgroundColor() const
     }
 }
 
+void QtMaterialSnackbar::setBackgroundOpacity(qreal opacity)
+{
+    Q_D(QtMaterialSnackbar);
+
+    d->bgOpacity = opacity;
+    update();
+}
+
+qreal QtMaterialSnackbar::backgroundOpacity() const
+{
+    Q_D(const QtMaterialSnackbar);
+
+    return d->bgOpacity;
+}
+
 void QtMaterialSnackbar::setTextColor(const QColor &color)
 {
     Q_D(QtMaterialSnackbar);
@@ -149,22 +174,94 @@ int QtMaterialSnackbar::boxWidth() const
     return d->boxWidth;
 }
 
+void QtMaterialSnackbar::setClickToDismissMode(bool value)
+{
+    Q_D(QtMaterialSnackbar);
+
+    d->clickDismiss = value;
+}
+
+bool QtMaterialSnackbar::clickToDismissMode() const
+{
+    Q_D(const QtMaterialSnackbar);
+
+    return d->clickDismiss;
+}
+
 void QtMaterialSnackbar::addMessage(const QString &message)
 {
+    Q_D(QtMaterialSnackbar);
+
+    d->messages.push_back(message);
+    d->stateMachine->postEvent(new QtMaterialStateTransitionEvent(SnackbarShowTransition));
 }
 
 void QtMaterialSnackbar::addInstantMessage(const QString &message)
 {
+    Q_D(QtMaterialSnackbar);
+
+    if (d->messages.isEmpty()) {
+        d->messages.push_back(message);
+    } else {
+        d->messages.insert(1, message);
+    }
+
+    d->stateMachine->progress();
+}
+
+void QtMaterialSnackbar::dequeue()
+{
+    Q_D(QtMaterialSnackbar);
+
+    if (d->messages.isEmpty()) {
+        return;
+    }
+
+    d->messages.removeFirst();
+
+    if (!d->messages.isEmpty()) {
+        d->stateMachine->postEvent(new QtMaterialStateTransitionEvent(SnackbarNextTransition));
+    } else {
+        d->stateMachine->postEvent(new QtMaterialStateTransitionEvent(SnackbarWaitTransition));
+    }
 }
 
 void QtMaterialSnackbar::paintEvent(QPaintEvent *event)
 {
     Q_UNUSED(event)
 
-    QPainter painter(this);
+    Q_D(QtMaterialSnackbar);
 
-    QPen p;
-    p.setWidth(3);
-    p.setColor(Qt::red);
-    painter.setPen(p);
+    if (d->messages.isEmpty()) {
+        return;
+    }
+
+    QString message = d->messages.first();
+
+    QPainter painter(this);
+    painter.setRenderHint(QPainter::Antialiasing);
+
+    QBrush brush;
+    brush.setStyle(Qt::SolidPattern);
+    brush.setColor(backgroundColor());
+    painter.setBrush(brush);
+    painter.setOpacity(d->bgOpacity);
+
+    QRect r(0, 0, d->boxWidth, 40);
+
+    painter.setPen(Qt::white);
+    QRect br = painter.boundingRect(r, Qt::AlignHCenter | Qt::AlignTop | Qt::TextWordWrap, message);
+
+    painter.setPen(Qt::NoPen);
+    r = br.united(r).adjusted(-10, -10, 10, 20);
+
+    const qreal s = 1-d->stateMachine->offset();
+
+    painter.translate((width()-(r.width()-20))/2,
+                      height()+10-s*(r.height()));
+
+    br.moveCenter(r.center());
+    painter.drawRoundedRect(r.adjusted(0, 0, 0, 3), 3, 3);
+    painter.setPen(textColor());
+    painter.drawText(br, Qt::AlignHCenter | Qt::AlignTop | Qt::TextWordWrap, message);
 }

xx/qtmaterialsnackbar.h

@@ -22,6 +22,9 @@ public:
     void setBackgroundColor(const QColor &color);
     QColor backgroundColor() const;
 
+    void setBackgroundOpacity(qreal opacity);
+    qreal backgroundOpacity() const;
+
     void setTextColor(const QColor &color);
     QColor textColor() const;
 
@@ -31,10 +34,16 @@ public:
     void setBoxWidth(int width);
     int boxWidth() const;
 
+    void setClickToDismissMode(bool value);
+    bool clickToDismissMode() const;
+
 public slots:
     void addMessage(const QString &message);
     void addInstantMessage(const QString &message);
 
+protected slots:
+    void dequeue();
+
 protected:
     void paintEvent(QPaintEvent *event) Q_DECL_OVERRIDE;
 

xx/qtmaterialsnackbar_internal.cpp

@@ -1,5 +1,8 @@
 #include "xx/qtmaterialsnackbar_internal.h"
+#include <QPropertyAnimation>
 #include "xx/qtmaterialsnackbar.h"
+#include "xxlib/qtmaterialstatetransition.h"
+#include <QDebug>
 
 QtMaterialSnackbarStateMachine::QtMaterialSnackbarStateMachine(QtMaterialSnackbar *parent)
     : QStateMachine(parent),
@@ -17,19 +20,80 @@ QtMaterialSnackbarStateMachine::QtMaterialSnackbarStateMachine(QtMaterialSnackba
 
     setInitialState(hiddenState);
 
-    QSignalTransition *transition;
+    QtMaterialStateTransition *transition;
 
-    //
+    transition = new QtMaterialStateTransition(SnackbarShowTransition);
+    transition->setTargetState(visibleState);
+    hiddenState->addTransition(transition);
 
-    //
+    transition = new QtMaterialStateTransition(SnackbarHideTransition);
+    transition->setTargetState(visibleState);
+    hiddenState->addTransition(transition);
+
+    transition = new QtMaterialStateTransition(SnackbarHideTransition);
+    transition->setTargetState(finalState);
+    visibleState->addTransition(transition);
+
+    transition = new QtMaterialStateTransition(SnackbarWaitTransition);
+    transition->setTargetState(hiddenState);
+    finalState->addTransition(transition);
+
+    transition = new QtMaterialStateTransition(SnackbarNextTransition);
+    transition->setTargetState(visibleState);
+    finalState->addTransition(transition);
+
+    connect(visibleState, SIGNAL(propertiesAssigned()),
+            this, SLOT(snackbarShown()));
+    connect(finalState, SIGNAL(propertiesAssigned()),
+            m_snackbar, SLOT(dequeue()));
+
+    QPropertyAnimation *animation;
+
+    animation = new QPropertyAnimation(this, "offset", this);
+    animation->setEasingCurve(QEasingCurve::OutCubic);
+    animation->setDuration(400);
+    addDefaultAnimation(animation);
+
+    hiddenState->assignProperty(this, "offset", 1);
+    visibleState->assignProperty(this, "offset", 0);
+    finalState->assignProperty(this, "offset", 1);
+
+    connect(&m_timer, SIGNAL(timeout()), this, SLOT(progress()));
+
+    m_snackbar->installEventFilter(this);
 }
 
 QtMaterialSnackbarStateMachine::~QtMaterialSnackbarStateMachine()
 {
 }
 
+bool QtMaterialSnackbarStateMachine::eventFilter(QObject *watched, QEvent *event)
+{
+    if (QEvent::MouseButtonPress == event->type() && m_snackbar->clickToDismissMode()) {
+        progress();
+    }
+    return QStateMachine::eventFilter(watched, event);
+}
+
 void QtMaterialSnackbarStateMachine::setOffset(qreal offset)
 {
     m_offset = offset;
     m_snackbar->update();
 }
+
+void QtMaterialSnackbarStateMachine::progress()
+{
+    m_timer.stop();
+    postEvent(new QtMaterialStateTransitionEvent(SnackbarHideTransition));
+    if (m_snackbar->clickToDismissMode()) {
+        m_snackbar->setAttribute(Qt::WA_TransparentForMouseEvents, true);
+    }
+}
+
+void QtMaterialSnackbarStateMachine::snackbarShown()
+{
+    m_timer.start(m_snackbar->autoHideDuration());
+    if (m_snackbar->clickToDismissMode()) {
+        m_snackbar->setAttribute(Qt::WA_TransparentForMouseEvents, false);
+    }
+}

xx/qtmaterialsnackbar_internal.h

@@ -19,6 +19,15 @@ public:
     void setOffset(qreal offset);
     inline qreal offset() const;
 
+public slots:
+    void progress();
+
+protected slots:
+    void snackbarShown();
+
+protected:
+    bool eventFilter(QObject *watched, QEvent *event) Q_DECL_OVERRIDE;
+
 private:
     Q_DISABLE_COPY(QtMaterialSnackbarStateMachine)
 

xx/qtmaterialsnackbar_p.h

@@ -22,9 +22,11 @@ public:
     QtMaterialSnackbarStateMachine *stateMachine;
     QColor                          backgroundColor;
     QColor                          textColor;
+    qreal                           bgOpacity;
     QList<QString>                  messages;
     int                             duration;
     int                             boxWidth;
+    bool                            clickDismiss;
     bool                            useThemeColors;
 };
 

xxlib/qtmaterialstatetransition.cpp

@@ -0,0 +1,19 @@
+#include "xxlib/qtmaterialstatetransition.h"
+
+QtMaterialStateTransition::QtMaterialStateTransition(QtMaterialStateTransitionType type)
+    : m_type(type)
+{
+}
+
+bool QtMaterialStateTransition::eventTest(QEvent *event)
+{
+    if (event->type() != QEvent::Type(QEvent::User + 1)) {
+        return false;
+    }
+    QtMaterialStateTransitionEvent *transition = static_cast<QtMaterialStateTransitionEvent *>(event);
+    return (m_type == transition->type);
+}
+
+void QtMaterialStateTransition::onTransition(QEvent *)
+{
+}

xxlib/qtmaterialstatetransition.h

@@ -0,0 +1,22 @@
+#ifndef QTMATERIALSTATETRANSITION_H
+#define QTMATERIALSTATETRANSITION_H
+
+#include <QAbstractTransition>
+#include "xxlib/qtmaterialstatetransitionevent.h"
+
+class QtMaterialStateTransition : public QAbstractTransition
+{
+    Q_OBJECT
+
+public:
+    QtMaterialStateTransition(QtMaterialStateTransitionType type);
+
+protected:
+    virtual bool eventTest(QEvent *event);
+    virtual void onTransition(QEvent *);
+
+private:
+    QtMaterialStateTransitionType m_type;
+};
+
+#endif // QTMATERIALSTATETRANSITION_H

xxlib/qtmaterialstatetransitionevent.h

@@ -0,0 +1,39 @@
+#ifndef QTMATERIALSTATETRANSITIONEVENT_H
+#define QTMATERIALSTATETRANSITIONEVENT_H
+
+#include <QEvent>
+
+enum QtMaterialStateTransitionType {
+    // Snackbar
+    SnackbarShowTransition = 1,
+    SnackbarHideTransition,
+    SnackbarWaitTransition,
+    SnackbarNextTransition,
+    // FlatButton
+    FlatButtonPressedTransition,
+    FlatButtonCheckedTransition,
+    FlatButtonUncheckedTransition,
+    // CollapsibleMenu
+    CollapsibleMenuExpand,
+    CollapsibleMenuCollapse,
+    // Slider
+    SliderChangedToMinimum,
+    SliderChangedFromMinimum,
+    SliderNoFocusMouseEnter,
+    SliderNoFocusMouseLeave,
+
+    MaxTransitionType = 65535
+};
+
+struct QtMaterialStateTransitionEvent : public QEvent
+{
+    QtMaterialStateTransitionEvent(QtMaterialStateTransitionType type)
+        : QEvent(QEvent::Type(QEvent::User + 1)),
+          type(type)
+    {
+    }
+
+    QtMaterialStateTransitionType type;
+};
+
+#endif // QTMATERIALSTATETRANSITIONEVENT_H