Allow the API class to provide the page widget rendering implementation.

- Rename NativeViewQt to RenderWidgetHostViewQtDelegate to keep the
  context obvious.
- Use an interface to handle the parenting instead of the
  NativeViewContainerQt mechanism that was needed with the Shell.

1 files changed, 84 insertions, 0 deletions

diff --git a/lib/render_widget_host_view_qt_delegate_widget.cpp b/lib/render_widget_host_view_qt_delegate_widget.cpp
new file mode 100644
index 000000000..8be1d308f
--- /dev/null
+++ b/lib/render_widget_host_view_qt_delegate_widget.cpp
@@ -0,0 +1,84 @@
+#include "render_widget_host_view_qt_delegate_widget.h"
+
+#include "shared/backing_store_qt.h"
+#include "shared/render_widget_host_view_qt.h"
+
+#include <QResizeEvent>
+#include <QPaintEvent>
+
+RenderWidgetHostViewQtDelegateWidget::RenderWidgetHostViewQtDelegateWidget(content::RenderWidgetHostViewQt* view, QWidget *parent)
+    : QWidget(parent)
+    , m_painter(0)
+    , m_backingStore(0)
+    , m_view(view)
+{
+    setFocusPolicy(Qt::ClickFocus);
+    setAttribute(Qt::WA_OpaquePaintEvent);
+}
+
+QRectF RenderWidgetHostViewQtDelegateWidget::screenRect() const
+{
+    return QRectF(x(), y(), width(), height());
+}
+
+void RenderWidgetHostViewQtDelegateWidget::show()
+{
+    QWidget::show();
+}
+
+void RenderWidgetHostViewQtDelegateWidget::hide()
+{
+    QWidget::hide();
+}
+
+
+bool RenderWidgetHostViewQtDelegateWidget::isVisible() const
+{
+    return QWidget::isVisible();
+}
+
+QWindow* RenderWidgetHostViewQtDelegateWidget::window() const
+{
+    return QWidget::windowHandle();
+}
+
+void RenderWidgetHostViewQtDelegateWidget::update(const QRect& rect)
+{
+    QWidget::update(rect);
+}
+
+void RenderWidgetHostViewQtDelegateWidget::setBackingStore(BackingStoreQt* backingStore)
+{
+    m_backingStore = backingStore;
+    if (m_backingStore)
+        m_backingStore->resize(size());
+}
+
+void RenderWidgetHostViewQtDelegateWidget::paintEvent(QPaintEvent * event)
+{
+    if (!m_backingStore)
+        return;
+    QPainter painter(this);
+    m_backingStore->paintToTarget(&painter, event->rect());
+}
+
+QPainter* RenderWidgetHostViewQtDelegateWidget::painter()
+{
+    if (!m_painter)
+        m_painter = new QPainter(this);
+    return m_painter;
+}
+
+void RenderWidgetHostViewQtDelegateWidget::resizeEvent(QResizeEvent *resizeEvent)
+{
+    if (m_backingStore)
+        m_backingStore->resize(resizeEvent->size());
+    QWidget::update();
+}
+
+bool RenderWidgetHostViewQtDelegateWidget::event(QEvent *event)
+{
+    if (!m_view || !m_view->handleEvent(event))
+        return QWidget::event(event);
+    return true;
+}