Home | History | Annotate | Download | only in win 
      1 /*
      2  * Copyright (C) 2011 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
     14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
     17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     23  * THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "Test.h"
     27 
     28 #include "PlatformUtilities.h"
     29 #include "PlatformWebView.h"
     30 #include <WebKit2/WKRetainPtr.h>
     31 
     32 namespace TestWebKitAPI {
     33 
     34 static bool didFinishLoad;
     35 
     36 static void didFinishLoadForFrame(WKPageRef, WKFrameRef, WKTypeRef, const void*)
     37 {
     38     didFinishLoad = true;
     39 }
     40 
     41 static void setPageLoaderClient(WKPageRef page)
     42 {
     43     WKPageLoaderClient loaderClient;
     44     memset(&loaderClient, 0, sizeof(loaderClient));
     45     loaderClient.version = 0;
     46     loaderClient.didFinishLoadForFrame = didFinishLoadForFrame;
     47 
     48     WKPageSetPageLoaderClient(page, &loaderClient);
     49 }
     50 
     51 static void flushMessages(WKPageRef page)
     52 {
     53     // In order to ensure all pending messages have been handled by the UI and web processes, we
     54     // load a URL and wait for the load to finish.
     55 
     56     setPageLoaderClient(page);
     57 
     58     WKPageLoadURL(page, adoptWK(Util::createURLForResource("simple", "html")).get());
     59     Util::run(&didFinishLoad);
     60     didFinishLoad = false;
     61 
     62     WKPageSetPageLoaderClient(page, 0);
     63 }
     64 
     65 static bool timerFired;
     66 static void CALLBACK timerCallback(HWND hwnd, UINT, UINT_PTR timerID, DWORD)
     67 {
     68     ::KillTimer(hwnd, timerID);
     69     timerFired = true;
     70 }
     71 
     72 static void runForDuration(double seconds)
     73 {
     74     ::SetTimer(0, 0, seconds * 1000, timerCallback);
     75     Util::run(&timerFired);
     76     timerFired = false;
     77 }
     78 
     79 static void waitForBackingStoreUpdate(WKPageRef page)
     80 {
     81     // Wait for the web process to handle the changes we just made, to perform a display (which
     82     // happens on a timer), and to tell the UI process about the display (which updates the backing
     83     // store).
     84     // FIXME: It would be much less fragile (and maybe faster) to have an explicit way to wait
     85     // until the backing store is updated.
     86     runForDuration(0.5);
     87     flushMessages(page);
     88 }
     89 
     90 TEST(WebKit2, ResizeViewWhileHidden)
     91 {
     92     WKRetainPtr<WKContextRef> context(AdoptWK, WKContextCreate());
     93     PlatformWebView webView(context.get());
     94 
     95     HWND window = WKViewGetWindow(webView.platformView());
     96 
     97     RECT originalRect;
     98     ::GetClientRect(window, &originalRect);
     99     RECT newRect = originalRect;
    100     ::InflateRect(&newRect, 1, 1);
    101 
    102     // Show the WKView and resize it so that the WKView's backing store will be created. Ideally
    103     // we'd have some more explicit way of forcing the backing store to be created.
    104     ::ShowWindow(window, SW_SHOW);
    105     webView.resizeTo(newRect.right - newRect.left, newRect.bottom - newRect.top);
    106 
    107     waitForBackingStoreUpdate(webView.page());
    108 
    109     // Resize the window while hidden and show it again so that it will update its backing store at
    110     // the new size.
    111     ::ShowWindow(window, SW_HIDE);
    112     webView.resizeTo(originalRect.right - originalRect.left, originalRect.bottom - originalRect.top);
    113     ::ShowWindow(window, SW_SHOW);
    114 
    115     // Force the WKView to paint to try to trigger <http://webkit.org/b/54142>.
    116     ::SendMessage(window, WM_PAINT, 0, 0);
    117 
    118     // In Debug builds without the fix for <http://webkit.org/b/54141>, the web process will assert
    119     // at this point.
    120     // FIXME: It would be good to have a way to check that our behavior is correct in Release
    121     // builds, too!
    122     waitForBackingStoreUpdate(webView.page());
    123 }
    124 
    125 } // namespace TestWebKitAPI
    126