1 files changed, 125 insertions, 0 deletions
diff --git a/Tools/TestWebKitAPI/Tests/WebKit2/win/ResizeViewWhileHidden.cpp b/Tools/TestWebKitAPI/Tests/WebKit2/win/ResizeViewWhileHidden.cpp
new file mode 100644
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+++ b/Tools/TestWebKitAPI/Tests/WebKit2/win/ResizeViewWhileHidden.cpp
@@ -0,0 +1,125 @@
+/*
+ * Copyright (C) 2011 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 "Test.h"
+
+#include "PlatformUtilities.h"
+#include "PlatformWebView.h"
+#include <WebKit2/WKRetainPtr.h>
+
+namespace TestWebKitAPI {
+
+static bool didFinishLoad;
+
+static void didFinishLoadForFrame(WKPageRef, WKFrameRef, WKTypeRef, const void*)
+{
+    didFinishLoad = true;
+}
+
+static void setPageLoaderClient(WKPageRef page)
+{
+    WKPageLoaderClient loaderClient;
+    memset(&loaderClient, 0, sizeof(loaderClient));
+    loaderClient.version = 0;
+    loaderClient.didFinishLoadForFrame = didFinishLoadForFrame;
+
+    WKPageSetPageLoaderClient(page, &loaderClient);
+}
+
+static void flushMessages(WKPageRef page)
+{
+    // In order to ensure all pending messages have been handled by the UI and web processes, we
+    // load a URL and wait for the load to finish.
+
+    setPageLoaderClient(page);
+
+    WKPageLoadURL(page, Util::adoptWK(Util::createURLForResource("simple", "html")).get());
+    Util::run(&didFinishLoad);
+    didFinishLoad = false;
+
+    WKPageSetPageLoaderClient(page, 0);
+}
+
+static bool timerFired;
+static void CALLBACK timerCallback(HWND hwnd, UINT, UINT_PTR timerID, DWORD)
+{
+    ::KillTimer(hwnd, timerID);
+    timerFired = true;
+}
+
+static void runForDuration(double seconds)
+{
+    ::SetTimer(0, 0, seconds * 1000, timerCallback);
+    Util::run(&timerFired);
+    timerFired = false;
+}
+
+static void waitForBackingStoreUpdate(WKPageRef page)
+{
+    // Wait for the web process to handle the changes we just made, to perform a display (which
+    // happens on a timer), and to tell the UI process about the display (which updates the backing
+    // store).
+    // FIXME: It would be much less fragile (and maybe faster) to have an explicit way to wait
+    // until the backing store is updated.
+    runForDuration(0.5);
+    flushMessages(page);
+}
+
+TEST(WebKit2, ResizeViewWhileHidden)
+{
+    WKRetainPtr<WKContextRef> context(AdoptWK, WKContextCreate());
+    PlatformWebView webView(context.get());
+
+    HWND window = WKViewGetWindow(webView.platformView());
+
+    RECT originalRect;
+    ::GetClientRect(window, &originalRect);
+    RECT newRect = originalRect;
+    ::InflateRect(&newRect, 1, 1);
+
+    // Show the WKView and resize it so that the WKView's backing store will be created. Ideally
+    // we'd have some more explicit way of forcing the backing store to be created.
+    ::ShowWindow(window, SW_SHOW);
+    webView.resizeTo(newRect.right - newRect.left, newRect.bottom - newRect.top);
+
+    waitForBackingStoreUpdate(webView.page());
+
+    // Resize the window while hidden and show it again so that it will update its backing store at
+    // the new size.
+    ::ShowWindow(window, SW_HIDE);
+    webView.resizeTo(originalRect.right - originalRect.left, originalRect.bottom - originalRect.top);
+    ::ShowWindow(window, SW_SHOW);
+
+    // Force the WKView to paint to try to trigger <http://webkit.org/b/54142>.
+    ::SendMessage(window, WM_PAINT, 0, 0);
+
+    // In Debug builds without the fix for <http://webkit.org/b/54141>, the web process will assert
+    // at this point.
+    // FIXME: It would be good to have a way to check that our behavior is correct in Release
+    // builds, too!
+    waitForBackingStoreUpdate(webView.page());
+}
+
+} // namespace TestWebKitAPI