TabIcon: Draw small dot in corner when there is activity in pinned tab

src/lib/tabwidget/tabicon.cpp

@@ -64,6 +64,7 @@ void TabIcon::setWebTab(WebTab* tab)
     connect(m_tab->webView(), SIGNAL(loadStarted()), this, SLOT(showLoadingAnimation()));
     connect(m_tab->webView(), SIGNAL(loadFinished(bool)), this, SLOT(hideLoadingAnimation()));
     connect(m_tab->webView(), &WebView::iconChanged, this, &TabIcon::updateIcon);
+    connect(m_tab->webView(), &WebView::backgroundActivityChanged, this, [this]() { update(); });
     connect(m_tab->webView()->page(), &QWebEnginePage::recentlyAudibleChanged, this, &TabIcon::updateAudioIcon);
 
     updateIcon();
@@ -175,6 +176,7 @@ void TabIcon::paintEvent(QPaintEvent* event)
     Q_UNUSED(event);
 
     QPainter p(this);
+    p.setRenderHint(QPainter::Antialiasing);
 
     const int size = 16;
     const int pixmapSize = qRound(size * s_data->animationPixmap.devicePixelRatioF());
@@ -209,6 +211,24 @@ void TabIcon::paintEvent(QPaintEvent* event)
         p.drawEllipse(r);
         p.drawPixmap(r, m_tab->isMuted() ? s_data->audioMutedPixmap : s_data->audioPlayingPixmap);
     }
+
+    // Draw background activity indicator
+    if (m_tab && m_tab->isPinned() && m_tab->webView()->backgroundActivity()) {
+        const int s = 5;
+        // Background
+        const QRect r1(width() - s - 2, height() - s - 2, s + 2, s + 2);
+        QColor c1 = palette().color(QPalette::Window);
+        c1.setAlpha(180);
+        p.setPen(Qt::transparent);
+        p.setBrush(c1);
+        p.drawEllipse(r1);
+        // Foreground
+        const QRect r2(width() - s - 1, height() - s - 1, s, s);
+        QColor c2 = palette().color(QPalette::Text);
+        p.setPen(Qt::transparent);
+        p.setBrush(c2);
+        p.drawEllipse(r2);
+    }
 }
 
 void TabIcon::mousePressEvent(QMouseEvent *event)

src/lib/webengine/webview.cpp

@@ -54,6 +54,7 @@ bool WebView::s_forceContextMenuOnMouseRelease = false;
 WebView::WebView(QWidget* parent)
     : QWebEngineView(parent)
     , m_progress(100)
+    , m_backgroundActivity(false)
     , m_page(0)
     , m_firstLoad(false)
 {
@@ -62,6 +63,7 @@ WebView::WebView(QWidget* parent)
     connect(this, &QWebEngineView::loadFinished, this, &WebView::slotLoadFinished);
     connect(this, &QWebEngineView::iconChanged, this, &WebView::slotIconChanged);
     connect(this, &QWebEngineView::urlChanged, this, &WebView::slotUrlChanged);
+    connect(this, &QWebEngineView::titleChanged, this, &WebView::slotTitleChanged);
 
     m_currentZoomLevel = zoomLevels().indexOf(100);
 
@@ -227,10 +229,9 @@ int WebView::loadingProgress() const
     return m_progress;
 }
 
-void WebView::fakeLoadingProgress(int progress)
+bool WebView::backgroundActivity() const
 {
-    emit loadStarted();
-    emit loadProgress(progress);
+    return m_backgroundActivity;
 }
 
 int WebView::zoomLevel() const
@@ -430,6 +431,16 @@ void WebView::slotUrlChanged(const QUrl &url)
     }
 }
 
+void WebView::slotTitleChanged(const QString &title)
+{
+    Q_UNUSED(title)
+
+    if (!isVisible() && !isLoading() && !m_backgroundActivity) {
+        m_backgroundActivity = true;
+        emit backgroundActivityChanged(m_backgroundActivity);
+    }
+}
+
 void WebView::openUrlInNewWindow()
 {
     if (QAction* action = qobject_cast<QAction*>(sender())) {
@@ -616,6 +627,16 @@ void WebView::userDefinedOpenUrlInBgTab(const QUrl &url)
     userDefinedOpenUrlInNewTab(actionUrl, true);
 }
 
+void WebView::showEvent(QShowEvent *event)
+{
+    QWebEngineView::showEvent(event);
+
+    if (m_backgroundActivity) {
+        m_backgroundActivity = false;
+        emit backgroundActivityChanged(m_backgroundActivity);
+    }
+}
+
 void WebView::createContextMenu(QMenu *menu, WebHitTestResult &hitTest)
 {
     // cppcheck-suppress variableScope

src/lib/webengine/webview.h

@@ -1,6 +1,6 @@
 /* ============================================================
-* QupZilla - WebKit based browser
-* Copyright (C) 2010-2016 David Rosca <nowrep@gmail.com>
+* QupZilla - Qt web browser
+* Copyright (C) 2010-2017 David Rosca <nowrep@gmail.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -49,7 +49,8 @@ public:
     bool isLoading() const;
 
     int loadingProgress() const;
-    void fakeLoadingProgress(int progress);
+
+    bool backgroundActivity() const;
 
     // Set zoom level (0 - 17)
     int zoomLevel() const;
@@ -80,6 +81,7 @@ signals:
     void showNotification(QWidget*);
     void privacyChanged(bool);
     void zoomLevelChanged(int);
+    void backgroundActivityChanged(bool);
 
 public slots:
     void zoomIn();
@@ -116,6 +118,7 @@ protected slots:
     void slotLoadFinished(bool ok);
     void slotIconChanged();
     void slotUrlChanged(const QUrl &url);
+    void slotTitleChanged(const QString &title);
 
     // Context menu slots
     void openUrlInNewWindow();
@@ -139,6 +142,7 @@ protected slots:
     void userDefinedOpenUrlInBgTab(const QUrl &url = QUrl());
 
 protected:
+    void showEvent(QShowEvent *event) override;
     void resizeEvent(QResizeEvent *event);
     void contextMenuEvent(QContextMenuEvent *event);
 
@@ -175,8 +179,8 @@ private:
     void initializeActions();
 
     int m_currentZoomLevel;
-
     int m_progress;
+    bool m_backgroundActivity;
 
     QUrl m_clickedUrl;
     QPointF m_clickedPos;