C++ PlatformWebView类代码示例

void TestInvocation::dumpPixelsAndCompareWithExpected(WKImageRef image, WKArrayRef repaintRects)
{
    PlatformWebView* webView = TestController::shared().mainWebView();
    WKRetainPtr<WKImageRef> windowSnapshot = webView->windowSnapshotImage();

    // There is no way at this time to fake a window's scale factor, so we need to avoid the window
    // snapshots for HiDPI tests.
    if (WKPageGetBackingScaleFactor(webView->page()) != 1)
        windowSnapshot = 0;

    RetainPtr<CGContextRef> context;
    if (windowSnapshot)
        context = adoptCF(createCGContextFromImage(windowSnapshot.get(), DontFlipGraphicsContext));
    else
        context = adoptCF(createCGContextFromImage(image));

    // A non-null repaintRects array means we're doing a repaint test.
    if (repaintRects)
        paintRepaintRectOverlay(context.get(), image, repaintRects);

    char actualHash[33];
    computeMD5HashStringForContext(context.get(), actualHash);
    if (!compareActualHashToExpectedAndDumpResults(actualHash))
        dumpBitmap(context.get(), actualHash);
}

void TestController::runModal(WKPageRef page, const void* clientInfo)
{
    PlatformWebView* view = static_cast<PlatformWebView*>(const_cast<void*>(clientInfo));
    view->setWindowIsKey(false);
    runModal(view);
    view->setWindowIsKey(true);
}

static void didFinishDocumentLoadForFrame(WKPageRef page, WKFrameRef frame, WKTypeRef userData, const void *clientInfo)
{
    WKPageSetScrollPinningBehavior(page, kWKScrollPinningBehaviorPinToBottom);

    EXPECT_JS_EQ(page, "window.scrollY", "2434");

    PlatformWebView* webView = (PlatformWebView*)clientInfo;
    webView->resizeTo(800, 200);

    EXPECT_JS_EQ(page, "window.scrollY", "2834");
    EXPECT_JS_EQ(page, "window.scrollTo(0,0)", "undefined");
    EXPECT_JS_EQ(page, "window.scrollY", "2834");

    WKPageSetScrollPinningBehavior(page, kWKScrollPinningBehaviorPinToTop);
    
    EXPECT_JS_EQ(page, "window.scrollY", "0");
    EXPECT_JS_EQ(page, "window.scrollTo(0,200)", "undefined");
    EXPECT_JS_EQ(page, "window.scrollY", "0");
    
    WKPageSetScrollPinningBehavior(page, kWKScrollPinningBehaviorDoNotPin);
    
    EXPECT_JS_EQ(page, "window.scrollY", "0");
    EXPECT_JS_EQ(page, "window.scrollTo(0,200)", "undefined");
    EXPECT_JS_EQ(page, "window.scrollY", "200");
    
    testDone = true;
}

WKPageRef TestController::createOtherPage(WKPageRef oldPage, WKURLRequestRef, WKDictionaryRef, WKEventModifiers, WKEventMouseButton, const void*)
{
    PlatformWebView* view = new PlatformWebView(WKPageGetContext(oldPage), WKPageGetPageGroup(oldPage));
    WKPageRef newPage = view->page();

    view->resizeTo(800, 600);

    WKPageUIClient otherPageUIClient = {
        kWKPageUIClientCurrentVersion,
        view,
        0, // createNewPage_deprecatedForUseWithV0
        0, // showPage
        closeOtherPage,
        0, // takeFocus
        focus,
        unfocus,
        0, // runJavaScriptAlert        
        0, // runJavaScriptConfirm
        0, // runJavaScriptPrompt
        0, // setStatusText
        0, // mouseDidMoveOverElement_deprecatedForUseWithV0
        0, // missingPluginButtonClicked
        0, // didNotHandleKeyEvent
        0, // didNotHandleWheelEvent
        0, // toolbarsAreVisible
        0, // setToolbarsAreVisible
        0, // menuBarIsVisible
        0, // setMenuBarIsVisible
        0, // statusBarIsVisible
        0, // setStatusBarIsVisible
        0, // isResizable
        0, // setIsResizable
        getWindowFrameOtherPage,
        setWindowFrameOtherPage,
        runBeforeUnloadConfirmPanel,
        0, // didDraw
        0, // pageDidScroll
        exceededDatabaseQuota,
        0, // runOpenPanel
        0, // decidePolicyForGeolocationPermissionRequest
        0, // headerHeight
        0, // footerHeight
        0, // drawHeader
        0, // drawFooter
        0, // printFrame
        runModal,
        0, // didCompleteRubberBandForMainFrame
        0, // saveDataToFileInDownloadsFolder
        0, // shouldInterruptJavaScript
        createOtherPage,
        0, // mouseDidMoveOverElement
        0, // decidePolicyForNotificationPermissionRequest
    };
    WKPageSetPageUIClient(newPage, &otherPageUIClient);

    WKRetain(newPage);
    return newPage;
}

static void initialize(const PlatformWebView& webView)
{
    WKPageLoaderClient loaderClient;
    memset(&loaderClient, 0, sizeof(loaderClient));

    loaderClient.version = 0;
    loaderClient.didFinishLoadForFrame = didFinishLoadForFrame;
    WKPageSetPageLoaderClient(webView.page(), &loaderClient);

    WKViewSetFindIndicatorCallback(webView.platformView(), findIndicatorCallback, 0);
}

static void didLayout(WKPageRef page, WKLayoutMilestones milestones, WKTypeRef, const void* clientInfo)
{
    if (milestones & kWKDidFirstLayoutAfterSuppressedIncrementalRendering) {
        PlatformWebView* webView = (PlatformWebView*)clientInfo;

        unsigned pageCount = WKPageGetPageCount(page);
        EXPECT_EQ(expectedPageCount, pageCount);

        webView->resizeTo((pageLength * pageCount) + (pageGap * (pageCount - 1)), 500);
        EXPECT_JS_EQ(page, "window.scrollX", "0");

        testDone = true;
    }
}

void setupView(PlatformWebView& webView)
{
    WKPageUIClientV2 uiClient;
    memset(&uiClient, 0, sizeof(uiClient));

    uiClient.base.version = 2;
    uiClient.decidePolicyForGeolocationPermissionRequest = decidePolicyForGeolocationPermissionRequestCallBack;

    WKPageSetPageUIClient(webView.page(), &uiClient.base);
}

static void unfocus(WKPageRef page, const void* clientInfo)
{
    PlatformWebView* view = static_cast<PlatformWebView*>(const_cast<void*>(clientInfo));
    view->setWindowIsKey(false);
}

static void setWindowFrame(WKPageRef page, WKRect frame, const void* clientInfo)
{
    PlatformWebView* view = static_cast<PlatformWebView*>(const_cast<void*>(clientInfo));
    view->setWindowFrame(frame);
}

static WKRect getWindowFrame(WKPageRef page, const void* clientInfo)
{
    PlatformWebView* view = static_cast<PlatformWebView*>(const_cast<void*>(clientInfo));
    return view->windowFrame();
}

static void setWindowFrameMainPage(WKPageRef page, WKRect frame, const void* clientInfo)
{
    PlatformWebView* view = static_cast<TestController*>(const_cast<void*>(clientInfo))->mainWebView();
    view->setWindowFrame(frame);
}

static WKRect getWindowFrameMainPage(WKPageRef page, const void* clientInfo)
{
    PlatformWebView* view = static_cast<TestController*>(const_cast<void*>(clientInfo))->mainWebView();
    return view->windowFrame();
}