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diff --git a/Source/WebKit2/UIProcess/mac/WebPopupMenuProxyMac.mm b/Source/WebKit2/UIProcess/mac/WebPopupMenuProxyMac.mm
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+/*
+ * Copyright (C) 2010 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "WebPopupMenuProxyMac.h"
+
+#include "PageClientImpl.h"
+#include "PlatformPopupMenuData.h"
+#include "WKView.h"
+#include "WebPopupItem.h"
+#include <WebKitSystemInterface.h>
+
+using namespace WebCore;
+
+namespace WebKit {
+
+WebPopupMenuProxyMac::WebPopupMenuProxyMac(WKView* webView, WebPopupMenuProxy::Client* client)
+    : WebPopupMenuProxy(client)
+    , m_webView(webView)
+{
+}
+
+WebPopupMenuProxyMac::~WebPopupMenuProxyMac()
+{
+    if (m_popup)
+        [m_popup.get() setControlView:nil];
+}
+
+void WebPopupMenuProxyMac::populate(const Vector<WebPopupItem>& items)
+{
+    if (m_popup)
+        [m_popup.get() removeAllItems];
+    else {
+        m_popup.adoptNS([[NSPopUpButtonCell alloc] initTextCell:@"" pullsDown:NO]);
+        [m_popup.get() setUsesItemFromMenu:NO];
+        [m_popup.get() setAutoenablesItems:NO];
+    }
+
+    int size = items.size();
+
+    for (int i = 0; i < size; i++) {
+        if (items[i].m_type == WebPopupItem::Seperator)
+            [[m_popup.get() menu] addItem:[NSMenuItem separatorItem]];
+        else {
+            [m_popup.get() addItemWithTitle:nsStringFromWebCoreString(items[i].m_text)];
+            NSMenuItem* menuItem = [m_popup.get() lastItem];
+            [menuItem setEnabled:items[i].m_isEnabled];
+            [menuItem setToolTip:nsStringFromWebCoreString(items[i].m_toolTip)];
+        }
+    }
+}
+
+void WebPopupMenuProxyMac::showPopupMenu(const IntRect& rect, const Vector<WebPopupItem>& items, const PlatformPopupMenuData&, int32_t selectedIndex)
+{
+    populate(items);
+
+    [m_popup.get() attachPopUpWithFrame:rect inView:m_webView];
+    [m_popup.get() selectItemAtIndex:selectedIndex];
+
+    NSMenu* menu = [m_popup.get() menu];
+
+    // These values were borrowed from AppKit to match their placement of the menu.
+    const int popOverHorizontalAdjust = -10;
+    NSRect titleFrame = [m_popup.get()  titleRectForBounds:rect];
+    if (titleFrame.size.width <= 0 || titleFrame.size.height <= 0)
+        titleFrame = rect;
+    float vertOffset = roundf((NSMaxY(rect) - NSMaxY(titleFrame)) + NSHeight(titleFrame));
+    NSPoint location = NSMakePoint(NSMinX(rect) + popOverHorizontalAdjust, NSMaxY(rect) - vertOffset);
+
+    RetainPtr<NSView> dummyView(AdoptNS, [[NSView alloc] initWithFrame:rect]);
+    [m_webView addSubview:dummyView.get()];
+    location = [dummyView.get() convertPoint:location fromView:m_webView];
+
+    WKPopupMenu(menu, location, roundf(NSWidth(rect)), dummyView.get(), selectedIndex, [NSFont menuFontOfSize:0]);
+
+    [m_popup.get() dismissPopUp];
+    [dummyView.get() removeFromSuperview];
+
+    m_client->valueChangedForPopupMenu(this, [m_popup.get() indexOfSelectedItem]);
+}
+
+void WebPopupMenuProxyMac::hidePopupMenu()
+{
+    [m_popup.get() dismissPopUp];
+}
+
+
+} // namespace WebKit