diff -r 000000000000 -r 6474c204b198 widget/qt/mozqwidget.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/widget/qt/mozqwidget.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,231 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim: set ts=4 et sw=4 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include <QtCore/QCoreApplication>
+#include <QtGui/QResizeEvent>
+
+#include "mozqwidget.h"
+#include "nsWindow.h"
+
+using namespace mozilla::widget;
+
+MozQWidget::MozQWidget(nsWindow* aReceiver, QWindow* aParent)
+  : QWindow(aParent)
+  , mReceiver(aReceiver)
+  , mUpdatePending(false)
+{
+    mWindowType = mReceiver->WindowType();
+}
+
+MozQWidget::~MozQWidget()
+{
+}
+
+void MozQWidget::render(QPainter* painter)
+{
+    Q_UNUSED(painter);
+}
+
+void MozQWidget::renderLater()
+{
+    if (!isExposed() || eWindowType_child != mWindowType || !isVisible()) {
+        return;
+    }
+
+    if (!mUpdatePending) {
+        mUpdatePending = true;
+        QCoreApplication::postEvent(this, new QEvent(QEvent::UpdateRequest));
+    }
+}
+
+void MozQWidget::renderNow()
+{
+    if (!isExposed() || eWindowType_child != mWindowType || !isVisible()) {
+        return;
+    }
+
+    mReceiver->OnPaint();
+}
+
+bool MozQWidget::event(QEvent* event)
+{
+    switch (event->type()) {
+    case QEvent::UpdateRequest:
+        mUpdatePending = false;
+        renderNow();
+        return true;
+    default:
+        return QWindow::event(event);
+    }
+}
+
+void MozQWidget::exposeEvent(QExposeEvent* event)
+{
+    Q_UNUSED(event);
+    if (!isExposed() || eWindowType_child != mWindowType || !isVisible()) {
+        return;
+    }
+    LOG(("MozQWidget::%s [%p] flags:%x\n", __FUNCTION__, (void *)this, flags()));
+    renderNow();
+
+}
+
+void MozQWidget::resizeEvent(QResizeEvent* event)
+{
+    LOG(("MozQWidget::%s [%p]\n", __FUNCTION__, (void *)this));
+    mReceiver->resizeEvent(event);
+    QWindow::resizeEvent(event);
+}
+
+void MozQWidget::focusInEvent(QFocusEvent* event)
+{
+    LOG(("MozQWidget::%s [%p]\n", __FUNCTION__, (void *)this));
+    mReceiver->focusInEvent(event);
+    QWindow::focusInEvent(event);
+}
+
+void MozQWidget::focusOutEvent(QFocusEvent* event)
+{
+    LOG(("MozQWidget::%s [%p]\n", __FUNCTION__, (void *)this));
+    mReceiver->focusOutEvent(event);
+    QWindow::focusOutEvent(event);
+}
+
+void MozQWidget::hideEvent(QHideEvent* event)
+{
+    LOG(("MozQWidget::%s [%p]\n", __FUNCTION__, (void *)this));
+    mReceiver->hideEvent(event);
+    QWindow::hideEvent(event);
+}
+
+void MozQWidget::keyPressEvent(QKeyEvent* event)
+{
+    LOG(("MozQWidget::%s [%p]\n", __FUNCTION__, (void *)this));
+    mReceiver->keyPressEvent(event);
+    QWindow::keyPressEvent(event);
+}
+
+void MozQWidget::keyReleaseEvent(QKeyEvent* event)
+{
+    LOG(("MozQWidget::%s [%p]\n", __FUNCTION__, (void *)this));
+    mReceiver->keyReleaseEvent(event);
+    QWindow::keyReleaseEvent(event);
+}
+
+void MozQWidget::mouseDoubleClickEvent(QMouseEvent* event)
+{
+    LOG(("MozQWidget::%s [%p]\n", __FUNCTION__, (void *)this));
+    mReceiver->mouseDoubleClickEvent(event);
+    QWindow::mouseDoubleClickEvent(event);
+}
+
+void MozQWidget::mouseMoveEvent(QMouseEvent* event)
+{
+    mReceiver->mouseMoveEvent(event);
+    QWindow::mouseMoveEvent(event);
+}
+
+void MozQWidget::mousePressEvent(QMouseEvent* event)
+{
+    LOG(("MozQWidget::%s [%p]\n", __FUNCTION__, (void *)this));
+    mReceiver->mousePressEvent(event);
+    QWindow::mousePressEvent(event);
+}
+
+void MozQWidget::mouseReleaseEvent(QMouseEvent* event)
+{
+    LOG(("MozQWidget::%s [%p]\n", __FUNCTION__, (void *)this));
+    mReceiver->mouseReleaseEvent(event);
+    QWindow::mouseReleaseEvent(event);
+}
+
+void MozQWidget::moveEvent(QMoveEvent* event)
+{
+    LOG(("MozQWidget::%s [%p]\n", __FUNCTION__, (void *)this));
+    mReceiver->moveEvent(event);
+    QWindow::moveEvent(event);
+}
+
+void MozQWidget::showEvent(QShowEvent* event)
+{
+    LOG(("MozQWidget::%s [%p]\n", __FUNCTION__, (void *)this));
+    mReceiver->showEvent(event);
+    QWindow::showEvent(event);
+}
+
+void MozQWidget::wheelEvent(QWheelEvent* event)
+{
+    LOG(("MozQWidget::%s [%p]\n", __FUNCTION__, (void *)this));
+    mReceiver->wheelEvent(event);
+    QWindow::wheelEvent(event);
+}
+
+void MozQWidget::tabletEvent(QTabletEvent* event)
+{
+    LOG(("MozQWidget::%s [%p]\n", __FUNCTION__, (void *)this));
+    QWindow::tabletEvent(event);
+}
+
+void MozQWidget::touchEvent(QTouchEvent* event)
+{
+    LOG(("MozQWidget::%s [%p]\n", __FUNCTION__, (void *)this));
+    QWindow::touchEvent(event);
+}
+
+void MozQWidget::SetCursor(nsCursor aCursor)
+{
+    Qt::CursorShape cursor = Qt::ArrowCursor;
+    switch(aCursor) {
+    case eCursor_standard:
+        cursor = Qt::ArrowCursor;
+        break;
+    case eCursor_wait:
+        cursor = Qt::WaitCursor;
+        break;
+    case eCursor_select:
+        cursor = Qt::IBeamCursor;
+        break;
+    case eCursor_hyperlink:
+        cursor = Qt::PointingHandCursor;
+        break;
+    case eCursor_ew_resize:
+        cursor = Qt::SplitHCursor;
+        break;
+    case eCursor_ns_resize:
+        cursor = Qt::SplitVCursor;
+        break;
+    case eCursor_nw_resize:
+    case eCursor_se_resize:
+        cursor = Qt::SizeBDiagCursor;
+        break;
+    case eCursor_ne_resize:
+    case eCursor_sw_resize:
+        cursor = Qt::SizeFDiagCursor;
+        break;
+    case eCursor_crosshair:
+    case eCursor_move:
+        cursor = Qt::SizeAllCursor;
+        break;
+    case eCursor_help:
+        cursor = Qt::WhatsThisCursor;
+        break;
+    case eCursor_copy:
+    case eCursor_alias:
+        break;
+    case eCursor_context_menu:
+    case eCursor_cell:
+    case eCursor_grab:
+    case eCursor_grabbing:
+    case eCursor_spinning:
+    case eCursor_zoom_in:
+    case eCursor_zoom_out:
+
+    default:
+        break;
+    }
+
+    setCursor(cursor);
+}