Add global notification area and use for UI Tour info

Adds a global info bar display above the main window's status bar that
can be accessed via ICore::infoBar().

Replace the blocking "Take UI Tour" dialog by a notification there.

Fixes: QTCREATORBUG-22819
Change-Id: I733f1bfd2d1db0295754ed2e28bb202f927d0edb
Reviewed-by: hjk <hjk@qt.io>
Reviewed-by: André Hartmann <aha_1980@gmx.de>

src/plugins/coreplugin/coreplugin.cpp

@@ -149,6 +149,7 @@ bool CorePlugin::initialize(const QStringList &arguments, QString *errorMessage)
     Theme *themeFromArg = ThemeEntry::createTheme(args.themeId);
     setCreatorTheme(themeFromArg ? themeFromArg
                                  : ThemeEntry::createTheme(ThemeEntry::themeSetting()));
+    InfoBar::initialize(ICore::settings(), creatorTheme());
     new ActionManager(this);
     ActionManager::setPresentationModeEnabled(args.presentationMode);
     m_mainWindow = new MainWindow;
@@ -159,7 +160,6 @@ bool CorePlugin::initialize(const QStringList &arguments, QString *errorMessage)
     m_mainWindow->init();
     m_editMode = new EditMode;
     ModeManager::activateMode(m_editMode->id());
-    InfoBar::initialize(ICore::settings(), creatorTheme());
 
     IWizardFactory::initialize();
 

src/plugins/coreplugin/fancytabwidget.cpp

@@ -517,6 +517,9 @@ FancyTabWidget::FancyTabWidget(QWidget *parent)
     vlayout->addLayout(m_modesStack);
     vlayout->addWidget(m_statusBar);
 
+    m_infoBarDisplay.setTarget(vlayout, 1);
+    m_infoBarDisplay.setStyle(QFrame::Sunken);
+
     auto mainLayout = new QHBoxLayout;
     mainLayout->setMargin(0);
     mainLayout->setSpacing(1);
@@ -611,6 +614,13 @@ QStatusBar *FancyTabWidget::statusBar() const
     return m_statusBar;
 }
 
+InfoBar *FancyTabWidget::infoBar()
+{
+    if (!m_infoBarDisplay.infoBar())
+        m_infoBarDisplay.setInfoBar(&m_infoBar);
+    return &m_infoBar;
+}
+
 void FancyTabWidget::setCurrentIndex(int index)
 {
     m_tabBar->setCurrentIndex(index);

src/plugins/coreplugin/fancytabwidget.h

@@ -25,6 +25,8 @@
 
 #pragma once
 
+#include "infobar.h"
+
 #include <QIcon>
 #include <QWidget>
 
@@ -157,6 +159,7 @@ public:
 
     int currentIndex() const;
     QStatusBar *statusBar() const;
+    InfoBar *infoBar();
 
     void setTabEnabled(int index, bool enable);
     bool isTabEnabled(int index) const;
@@ -183,6 +186,8 @@ private:
     QStackedLayout *m_modesStack;
     QWidget *m_selectionWidget;
     QStatusBar *m_statusBar;
+    InfoBarDisplay m_infoBarDisplay;
+    InfoBar m_infoBar;
 };
 
 } // namespace Internal

src/plugins/coreplugin/icore.cpp

@@ -561,6 +561,11 @@ QStatusBar *ICore::statusBar()
     return m_mainwindow->statusBar();
 }
 
+InfoBar *ICore::infoBar()
+{
+    return m_mainwindow->infoBar();
+}
+
 void ICore::raiseWindow(QWidget *widget)
 {
     if (!widget)

src/plugins/coreplugin/icore.h

@@ -43,9 +43,10 @@ template <typename T> class QList;
 QT_END_NAMESPACE
 
 namespace Core {
-class IWizardFactory;
 class Context;
 class IContext;
+class InfoBar;
+class IWizardFactory;
 class SettingsDatabase;
 
 namespace Internal { class MainWindow; }
@@ -107,6 +108,8 @@ public:
     static QMainWindow *mainWindow();
     static QWidget *dialogParent();
     static QStatusBar *statusBar();
+    static InfoBar *infoBar();
+
     /* Raises and activates the window for the widget. This contains workarounds for X11. */
     static void raiseWindow(QWidget *widget);
 

src/plugins/coreplugin/infobar.cpp

@@ -30,7 +30,6 @@
 #include <utils/theme/theme.h>
 #include <utils/utilsicons.h>
 
-#include <QFrame>
 #include <QHBoxLayout>
 #include <QSettings>
 #include <QVBoxLayout>
@@ -207,6 +206,17 @@ void InfoBarDisplay::setInfoBar(InfoBar *infoBar)
     update();
 }
 
+void InfoBarDisplay::setStyle(QFrame::Shadow style)
+{
+    m_style = style;
+    update();
+}
+
+InfoBar *InfoBarDisplay::infoBar() const
+{
+    return m_infoBar;
+}
+
 void InfoBarDisplay::infoBarDestroyed()
 {
     m_infoBar = nullptr;
@@ -236,7 +246,7 @@ void InfoBarDisplay::update()
         }
 
         infoWidget->setPalette(pal);
-        infoWidget->setFrameStyle(QFrame::Panel | QFrame::Raised);
+        infoWidget->setFrameStyle(QFrame::Panel | m_style);
         infoWidget->setLineWidth(1);
         infoWidget->setAutoFillBackground(true);
 

src/plugins/coreplugin/infobar.h

@@ -28,6 +28,7 @@
 #include "core_global.h"
 #include <coreplugin/id.h>
 
+#include <QFrame>
 #include <QObject>
 #include <QSet>
 
@@ -127,6 +128,9 @@ public:
     InfoBarDisplay(QObject *parent = nullptr);
     void setTarget(QBoxLayout *layout, int index);
     void setInfoBar(InfoBar *infoBar);
+    void setStyle(QFrame::Shadow style);
+
+    InfoBar *infoBar() const;
 
 private:
     void update();
@@ -136,6 +140,7 @@ private:
     QList<QWidget *> m_infoWidgets;
     InfoBar *m_infoBar = nullptr;
     QBoxLayout *m_boxLayout = nullptr;
+    QFrame::Shadow m_style = QFrame::Raised;
     int m_boxIndex = 0;
     bool m_isShowingDetailsWidget = false;
 };

src/plugins/coreplugin/mainwindow.cpp

@@ -365,6 +365,11 @@ QStatusBar *MainWindow::statusBar() const
     return m_modeStack->statusBar();
 }
 
+InfoBar *MainWindow::infoBar() const
+{
+    return m_modeStack->infoBar();
+}
+
 void MainWindow::registerDefaultContainers()
 {
     ActionContainer *menubar = ActionManager::createMenuBar(Constants::MENU_BAR);

src/plugins/coreplugin/mainwindow.h

@@ -46,6 +46,7 @@ namespace Core {
 class EditorManager;
 class ExternalToolManager;
 class IDocument;
+class InfoBar;
 class JsExpander;
 class MessageManager;
 class ModeManager;
@@ -93,6 +94,7 @@ public:
     virtual QPrinter *printer() const;
     IContext * currentContextObject() const;
     QStatusBar *statusBar() const;
+    InfoBar *infoBar() const;
 
     void updateAdditionalContexts(const Context &remove, const Context &add,
                                   ICore::ContextPriority priority);

src/plugins/welcome/introductionwidget.cpp

@@ -25,6 +25,8 @@
 
 #include "introductionwidget.h"
 
+#include <coreplugin/icore.h>
+#include <coreplugin/infobar.h>
 #include <utils/algorithm.h>
 #include <utils/checkablemessagebox.h>
 #include <utils/qtcassert.h>
@@ -47,29 +49,24 @@ namespace Internal {
 
 void IntroductionWidget::askUserAboutIntroduction(QWidget *parent, QSettings *settings)
 {
-    if (!CheckableMessageBox::shouldAskAgain(settings, kTakeTourSetting))
+    // CheckableMessageBox for compatibility with Qt Creator < 4.11
+    if (!CheckableMessageBox::shouldAskAgain(settings, kTakeTourSetting)
+        || !Core::ICore::infoBar()->canInfoBeAdded(kTakeTourSetting))
         return;
-    auto messageBox = new CheckableMessageBox(parent);
+
-    messageBox->setWindowTitle(tr("Take a UI Tour"));
+    Core::InfoBarEntry
-    messageBox->setText(
+        info(kTakeTourSetting,
-        tr("Would you like to take a quick UI tour? This tour highlights important user "
+             tr("Would you like to take a quick UI tour? This tour highlights important user "
-           "interface elements and shows how they are used. To take the tour later, "
+                "interface elements and shows how they are used. To take the tour later, "
-           "select Help > UI Tour."));
+                "select Help > UI Tour."),
-    messageBox->setCheckBoxVisible(true);
+             Core::InfoBarEntry::GlobalSuppressionEnabled);
-    messageBox->setCheckBoxText(CheckableMessageBox::msgDoNotAskAgain());
+    info.setCustomButtonInfo(tr("Take UI Tour"), [parent] {
-    messageBox->setChecked(true);
+        Core::ICore::infoBar()->removeInfo(kTakeTourSetting);
-    messageBox->setStandardButtons(QDialogButtonBox::Cancel);
+        Core::ICore::infoBar()->globallySuppressInfo(kTakeTourSetting);
-    QPushButton *tourButton = messageBox->addButton(tr("Take UI Tour"), QDialogButtonBox::AcceptRole);
+        auto intro = new IntroductionWidget(parent);
-    connect(messageBox, &QDialog::finished, parent, [parent, settings, messageBox, tourButton]() {
+        intro->show();
-        if (messageBox->isChecked())
-            CheckableMessageBox::doNotAskAgain(settings, kTakeTourSetting);
-        if (messageBox->clickedButton() == tourButton) {
-            auto intro = new IntroductionWidget(parent);
-            intro->show();
-        }
-        messageBox->deleteLater();
     });
-    messageBox->show();
+    Core::ICore::infoBar()->addInfo(info);
 }
 
 IntroductionWidget::IntroductionWidget(QWidget *parent)