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
didFinishLoadForFrame(WKPageRef,WKFrameRef,WKTypeRef,const void *)36 static void didFinishLoadForFrame(WKPageRef, WKFrameRef, WKTypeRef, const void*)
37 {
38 didFinishLoad = true;
39 }
40
setPageLoaderClient(WKPageRef page)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
flushMessages(WKPageRef page)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;
timerCallback(HWND hwnd,UINT,UINT_PTR timerID,DWORD)66 static void CALLBACK timerCallback(HWND hwnd, UINT, UINT_PTR timerID, DWORD)
67 {
68 ::KillTimer(hwnd, timerID);
69 timerFired = true;
70 }
71
runForDuration(double seconds)72 static void runForDuration(double seconds)
73 {
74 ::SetTimer(0, 0, seconds * 1000, timerCallback);
75 Util::run(&timerFired);
76 timerFired = false;
77 }
78
waitForBackingStoreUpdate(WKPageRef page)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
TEST(WebKit2,ResizeViewWhileHidden)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