Bring back AutoScroll plugin

This time implemented in C++ and not with userscript. There
is also no support for scrolling inside frames.

src/lib/webengine/webpage.cpp

@@ -131,6 +131,11 @@ WebHitTestResult WebPage::hitTestContent(const QPoint &pos) const
     return WebHitTestResult(this, pos);
 }
 
+void WebPage::scroll(int x, int y)
+{
+    runJavaScript(QSL("window.scrollTo(window.scrollX + %1, window.scrollY + %2)").arg(QString::number(x), QString::number(y)));
+}
+
 void WebPage::scheduleAdjustPage()
 {
     if (view()->isLoading()) {

src/lib/webengine/webpage.h

@@ -54,6 +54,8 @@ public:
 
     WebHitTestResult hitTestContent(const QPoint &pos) const;
 
+    void scroll(int x, int y);
+
     bool javaScriptPrompt(const QUrl &securityOrigin, const QString &msg, const QString &defaultValue, QString* result) Q_DECL_OVERRIDE;
     bool javaScriptConfirm(const QUrl &securityOrigin, const QString &msg) Q_DECL_OVERRIDE;
     void javaScriptAlert(const QUrl &securityOrigin, const QString &msg) Q_DECL_OVERRIDE;

src/lib/webengine/webview.cpp

@@ -243,6 +243,11 @@ bool WebView::onBeforeUnload()
     return true;
 }
 
+QWidget *WebView::inputWidget() const
+{
+    return qobject_cast<QWidget*>(m_rwhvqt);
+}
+
 // static
 bool WebView::isUrlValid(const QUrl &url)
 {

src/lib/webengine/webview.h

@@ -63,6 +63,7 @@ public:
     void addNotification(QWidget* notif);
     bool eventFilter(QObject *obj, QEvent *event);
 
+    QWidget *inputWidget() const;
     virtual QWidget* overlayWidget() = 0;
 
     static bool isUrlValid(const QUrl &url);

src/plugins/AutoScroll/autoscroller.cpp

@@ -19,10 +19,10 @@
 #include "framescroller.h"
 #include "webview.h"
 #include "webpage.h"
+#include "webhittestresult.h"
 
 #include <QApplication>
 #include <QMouseEvent>
-#include <QWebFrame>
 #include <QSettings>
 #include <QLabel>
 
@@ -115,6 +115,19 @@ bool AutoScroller::mouseRelease(QObject* obj, QMouseEvent* event)
     return false;
 }
 
+bool AutoScroller::wheel(QObject *obj, QWheelEvent *event)
+{
+    Q_UNUSED(obj)
+    Q_UNUSED(event);
+
+    if (m_indicator->isVisible()) {
+        stopScrolling();
+        return true;
+    }
+
+    return false;
+}
+
 double AutoScroller::scrollDivider() const
 {
     return m_frameScroller->scrollDivider();
@@ -154,20 +167,22 @@ bool AutoScroller::eventFilter(QObject* obj, QEvent* event)
 
 bool AutoScroller::showIndicator(WebView* view, const QPoint &pos)
 {
-    QWebFrame* frame = view->page()->frameAt(pos);
-
-    if (!frame) {
-        return false;
-    }
-
-    const QWebHitTestResult res = frame->hitTestContent(pos);
+    const WebHitTestResult res = view->page()->hitTestContent(pos);
 
     if (res.isContentEditable() || !res.linkUrl().isEmpty()) {
         return false;
     }
 
-    bool vertical = frame->scrollBarGeometry(Qt::Vertical).isValid();
-    bool horizontal = frame->scrollBarGeometry(Qt::Horizontal).isValid();
+    QString source = QL1S("var out = {"
+                          " vertical: window.innerWidth > document.documentElement.clientWidth,"
+                          " horizontal: window.innerHeight > document.documentElement.clientHeight"
+                          "};"
+                          "out;");
+
+    const QVariantMap &map = view->page()->execJavaScript(source).toMap();
+
+    bool vertical = map.value(QSL("vertical")).toBool();
+    bool horizontal = map.value(QSL("horizontal")).toBool();
 
     if (!vertical && !horizontal) {
         return false;
@@ -193,9 +208,9 @@ bool AutoScroller::showIndicator(WebView* view, const QPoint &pos)
     m_indicator->move(p);
     m_indicator->show();
 
-    m_frameScroller->setFrame(frame);
+    m_frameScroller->setPage(view->page());
 
-    m_view->grabMouse();
+    m_view->inputWidget()->grabMouse();
     QApplication::setOverrideCursor(Qt::ArrowCursor);
 
     return true;
@@ -203,7 +218,7 @@ bool AutoScroller::showIndicator(WebView* view, const QPoint &pos)
 
 void AutoScroller::stopScrolling()
 {
-    m_view->releaseMouse();
+    m_view->inputWidget()->releaseMouse();
     QApplication::restoreOverrideCursor();
 
     m_indicator->hide();

src/plugins/AutoScroll/autoscroller.h

@@ -22,6 +22,7 @@
 #include <QPoint>
 
 class QMouseEvent;
+class QWheelEvent;
 class QLabel;
 class QRect;
 
@@ -38,6 +39,7 @@ public:
     bool mouseMove(QObject* obj, QMouseEvent* event);
     bool mousePress(QObject* obj, QMouseEvent* event);
     bool mouseRelease(QObject* obj, QMouseEvent* event);
+    bool wheel(QObject* obj, QWheelEvent *event);
 
     double scrollDivider() const;
     void setScrollDivider(double divider);

src/plugins/AutoScroll/autoscrollplugin.cpp

@@ -36,7 +36,7 @@ PluginSpec AutoScrollPlugin::pluginSpec()
     spec.name = "AutoScroll";
     spec.info = "AutoScroll plugin";
     spec.description = "Provides support for autoscroll with middle mouse button";
-    spec.version = "0.1.5";
+    spec.version = "0.2.0";
     spec.author = "David Rosca <nowrep@gmail.com>";
     spec.icon = QPixmap(":/autoscroll/data/scroll_all.png");
     spec.hasSettings = true;
@@ -53,6 +53,7 @@ void AutoScrollPlugin::init(InitState state, const QString &settingsPath)
     QZ_REGISTER_EVENT_HANDLER(PluginProxy::MouseMoveHandler);
     QZ_REGISTER_EVENT_HANDLER(PluginProxy::MousePressHandler);
     QZ_REGISTER_EVENT_HANDLER(PluginProxy::MouseReleaseHandler);
+    QZ_REGISTER_EVENT_HANDLER(PluginProxy::WheelEventHandler);
 }
 
 void AutoScrollPlugin::unload()
@@ -110,6 +111,15 @@ bool AutoScrollPlugin::mouseRelease(const Qz::ObjectName &type, QObject* obj, QM
     return false;
 }
 
+bool AutoScrollPlugin::wheelEvent(const Qz::ObjectName &type, QObject *obj, QWheelEvent *event)
+{
+    if (type == Qz::ON_WebView) {
+        return m_scroller->wheel(obj, event);
+    }
+
+    return false;
+}
+
 #if QT_VERSION < 0x050000
 Q_EXPORT_PLUGIN2(AutoScroll, AutoScrollPlugin)
 #endif

src/plugins/AutoScroll/autoscrollplugin.h

@@ -46,6 +46,7 @@ public:
     bool mouseMove(const Qz::ObjectName &type, QObject* obj, QMouseEvent* event);
     bool mousePress(const Qz::ObjectName &type, QObject* obj, QMouseEvent* event);
     bool mouseRelease(const Qz::ObjectName &type, QObject* obj, QMouseEvent* event);
+    bool wheelEvent(const Qz::ObjectName &type, QObject *obj, QWheelEvent *event);
 
 private:
     AutoScroller* m_scroller;

src/plugins/AutoScroll/framescroller.cpp

@@ -16,14 +16,14 @@
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * ============================================================ */
 #include "framescroller.h"
+#include "webpage.h"
 
 #include <QTimer>
-#include <QWebFrame>
-#include <QtCore/qmath.h>
+#include <QtMath>
 
 FrameScroller::FrameScroller(QObject* parent)
     : QObject(parent)
-    , m_frame(0)
+    , m_page(0)
     , m_lengthX(0)
     , m_lengthY(0)
     , m_divider(8.0)
@@ -33,9 +33,9 @@ FrameScroller::FrameScroller(QObject* parent)
     connect(m_timer, SIGNAL(timeout()), this, SLOT(scrollStep()));
 }
 
-void FrameScroller::setFrame(QWebFrame* frame)
+void FrameScroller::setPage(WebPage *page)
 {
-    m_frame = frame;
+    m_page = page;
 }
 
 double FrameScroller::scrollDivider() const
@@ -50,8 +50,6 @@ void FrameScroller::setScrollDivider(double divider)
 
 void FrameScroller::startScrolling(int lengthX, int lengthY)
 {
-    Q_ASSERT(m_frame);
-
     m_lengthX = lengthX;
     m_lengthY = lengthY;
 
@@ -70,5 +68,5 @@ void FrameScroller::stopScrolling()
 
 void FrameScroller::scrollStep()
 {
-    m_frame->scroll(qCeil(m_lengthX / m_divider), qCeil(m_lengthY / m_divider));
+    m_page->scroll(qCeil(m_lengthX / m_divider), qCeil(m_lengthY / m_divider));
 }

src/plugins/AutoScroll/framescroller.h

@@ -21,7 +21,8 @@
 #include <QObject>
 
 class QTimer;
-class QWebFrame;
+
+class WebPage;
 
 class FrameScroller : public QObject
 {
@@ -30,7 +31,7 @@ class FrameScroller : public QObject
 public:
     explicit FrameScroller(QObject* parent = 0);
 
-    void setFrame(QWebFrame* frame);
+    void setPage(WebPage *page);
 
     double scrollDivider() const;
     void setScrollDivider(double divider);
@@ -42,7 +43,7 @@ private slots:
     void scrollStep();
 
 private:
-    QWebFrame* m_frame;
+    WebPage *m_page;
     QTimer* m_timer;
 
     int m_lengthX;

src/plugins/plugins.pro

@@ -34,7 +34,7 @@ outOfDirPlugins = $$(QUPZILLA_PLUGINS_SRCDIR)
 
 # KWalletPasswords only with KDE_INTEGRATION and KWallet framework
 !contains(DEFINES, KDE_INTEGRATION): disablePlugin(KWalletPasswords)
-isEqual(QT_MAJOR_VERSION, 5): !qtHaveModule(KWallet): disablePlugin(KWalletPasswords)
+!qtHaveModule(KWallet): disablePlugin(KWalletPasswords)
 
 # GnomeKeyringPasswords only with GNOME_INTEGRATION and gnome-keyring pkg-config
 !contains(DEFINES, GNOME_INTEGRATION): disablePlugin(GnomeKeyringPasswords)