void CoordinatedDrawingArea::display(UpdateInfo& updateInfo)
{
ASSERT(!m_isPaintingSuspended);
ASSERT(!m_layerTreeHost);
ASSERT(!m_webPage.size().isEmpty());
m_webPage.layoutIfNeeded();
// The layout may have put the page into accelerated compositing mode. If the LayerTreeHost is
// in charge of displaying, we have nothing more to do.
if (m_layerTreeHost)
return;
updateInfo.viewSize = m_webPage.size();
updateInfo.deviceScaleFactor = m_webPage.corePage()->deviceScaleFactor();
IntRect bounds = m_dirtyRegion.bounds();
ASSERT(m_webPage.bounds().contains(bounds));
IntSize bitmapSize = bounds.size();
float deviceScaleFactor = m_webPage.corePage()->deviceScaleFactor();
bitmapSize.scale(deviceScaleFactor);
RefPtr<ShareableBitmap> bitmap = ShareableBitmap::createShareable(bitmapSize, ShareableBitmap::SupportsAlpha);
if (!bitmap)
return;
if (!bitmap->createHandle(updateInfo.bitmapHandle))
return;
Vector<IntRect> rects = m_dirtyRegion.rects();
if (shouldPaintBoundsRect(bounds, rects)) {
rects.clear();
rects.append(bounds);
}
updateInfo.scrollRect = m_scrollRect;
updateInfo.scrollOffset = m_scrollOffset;
m_dirtyRegion = Region();
m_scrollRect = IntRect();
m_scrollOffset = IntSize();
auto graphicsContext = bitmap->createGraphicsContext();
graphicsContext->applyDeviceScaleFactor(deviceScaleFactor);
updateInfo.updateRectBounds = bounds;
graphicsContext->translate(-bounds.x(), -bounds.y());
for (auto& rect : rects) {
m_webPage.drawRect(*graphicsContext, rect);
updateInfo.updateRects.append(rect);
}
// Layout can trigger more calls to setNeedsDisplay and we don't want to process them
// until the UI process has painted the update, so we stop the timer here.
m_displayTimer.stop();
}
void DrawingAreaImpl::display(UpdateInfo& updateInfo)
{
ASSERT(!m_isPaintingSuspended);
ASSERT(!m_layerTreeHost);
ASSERT(!m_webPage->size().isEmpty());
// FIXME: It would be better if we could avoid painting altogether when there is a custom representation.
if (m_webPage->mainFrameHasCustomRepresentation()) {
// ASSUMPTION: the custom representation will be painting the dirty region for us.
m_dirtyRegion = Region();
return;
}
m_webPage->layoutIfNeeded();
// The layout may have put the page into accelerated compositing mode. If the LayerTreeHost is
// in charge of displaying, we have nothing more to do.
if (m_layerTreeHost)
return;
updateInfo.viewSize = m_webPage->size();
updateInfo.deviceScaleFactor = m_webPage->corePage()->deviceScaleFactor();
IntRect bounds = m_dirtyRegion.bounds();
ASSERT(m_webPage->bounds().contains(bounds));
IntSize bitmapSize = bounds.size();
float deviceScaleFactor = m_webPage->corePage()->deviceScaleFactor();
bitmapSize.scale(deviceScaleFactor);
RefPtr<ShareableBitmap> bitmap = ShareableBitmap::createShareable(bitmapSize, ShareableBitmap::SupportsAlpha);
if (!bitmap)
return;
if (!bitmap->createHandle(updateInfo.bitmapHandle))
return;
Vector<IntRect> rects = m_dirtyRegion.rects();
if (shouldPaintBoundsRect(bounds, rects)) {
rects.clear();
rects.append(bounds);
}
updateInfo.scrollRect = m_scrollRect;
updateInfo.scrollOffset = m_scrollOffset;
m_dirtyRegion = Region();
m_scrollRect = IntRect();
m_scrollOffset = IntSize();
OwnPtr<GraphicsContext> graphicsContext = createGraphicsContext(bitmap.get());
graphicsContext->applyDeviceScaleFactor(deviceScaleFactor);
updateInfo.updateRectBounds = bounds;
graphicsContext->translate(-bounds.x(), -bounds.y());
for (size_t i = 0; i < rects.size(); ++i) {
m_webPage->drawRect(*graphicsContext, rects[i]);
if (m_webPage->hasPageOverlay())
m_webPage->drawPageOverlay(*graphicsContext, rects[i]);
updateInfo.updateRects.append(rects[i]);
}
// Layout can trigger more calls to setNeedsDisplay and we don't want to process them
// until the UI process has painted the update, so we stop the timer here.
m_displayTimer.stop();
}