lib/render_widget_host_view_qt_delegate_widget.cpp


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76

#include "render_widget_host_view_qt_delegate_widget.h"

#include "shared/backing_store_qt.h"
#include "shared/render_widget_host_view_qt.h"

#include "content/browser/renderer_host/render_view_host_impl.h"

#include <QResizeEvent>
#include <QPaintEvent>

RenderWidgetHostViewQtDelegateWidget::RenderWidgetHostViewQtDelegateWidget(content::RenderWidgetHostViewQt* view, QWidget *parent)
    : QWidget(parent)
    , m_painter(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::paintEvent(QPaintEvent * event)
{
    if (BackingStoreQt *backingStore = m_view->GetBackingStore()) {
        QPainter painter(this);
        backingStore->paintToTarget(&painter, event->rect());
    }
}

QPainter* RenderWidgetHostViewQtDelegateWidget::painter()
{
    if (!m_painter)
        m_painter = new QPainter(this);
    return m_painter;
}

void RenderWidgetHostViewQtDelegateWidget::resizeEvent(QResizeEvent *resizeEvent)
{
    m_view->GetRenderWidgetHost()->WasResized();
}

bool RenderWidgetHostViewQtDelegateWidget::event(QEvent *event)
{
    if (!m_view || !m_view->handleEvent(event))
        return QWidget::event(event);
    return true;
}