CoalescedWindowGeometriesUpdater.cpp [plain text]
#include "config.h"
#include "CoalescedWindowGeometriesUpdater.h"
#include "WindowGeometry.h"
#include <wtf/PassOwnPtr.h>
namespace WebKit {
CoalescedWindowGeometriesUpdater::CoalescedWindowGeometriesUpdater()
{
}
CoalescedWindowGeometriesUpdater::~CoalescedWindowGeometriesUpdater()
{
}
void CoalescedWindowGeometriesUpdater::addPendingUpdate(const WindowGeometry& geometry)
{
m_geometries.set(geometry.window, geometry);
}
static void setWindowRegion(HWND window, PassOwnPtr<HRGN> popRegion)
{
OwnPtr<HRGN> region = popRegion;
if (!::SetWindowRgn(window, region.get(), TRUE))
return;
region.leakPtr();
}
void CoalescedWindowGeometriesUpdater::updateGeometries(BringToTopOrNot bringToTopOrNot)
{
HashMap<HWND, WindowGeometry> geometries;
geometries.swap(m_geometries);
HDWP deferWindowPos = ::BeginDeferWindowPos(geometries.size());
for (HashMap<HWND, WindowGeometry>::const_iterator::Values it = geometries.begin().values(), end = geometries.end().values(); it != end; ++it) {
const WindowGeometry& geometry = *it;
if (!::IsWindow(geometry.window))
continue;
UINT flags = SWP_NOACTIVATE;
if (geometry.visible)
flags |= SWP_SHOWWINDOW;
else
flags |= SWP_HIDEWINDOW;
HWND hwndInsertAfter;
if (bringToTopOrNot == BringToTop)
hwndInsertAfter = HWND_TOP;
else {
hwndInsertAfter = 0;
flags |= SWP_NOOWNERZORDER | SWP_NOZORDER;
}
deferWindowPos = ::DeferWindowPos(deferWindowPos, geometry.window, hwndInsertAfter, geometry.frame.x(), geometry.frame.y(), geometry.frame.width(), geometry.frame.height(), flags);
setWindowRegion(geometry.window, adoptPtr(::CreateRectRgn(geometry.clipRect.x(), geometry.clipRect.y(), geometry.clipRect.maxX(), geometry.clipRect.maxY())));
}
::EndDeferWindowPos(deferWindowPos);
}
}