sonyoss-vita-webkit/Tools/TestWebKitAPI/Tests/WebKit2/PageVisibilityState.cpp

/*
 * Copyright (C) 2013 Apple Inc. All rights reserved.
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#include "config.h"
#include "PlatformUtilities.h"
#include "PlatformWebView.h"
#include "Test.h"
#include <JavaScriptCore/JSContextRef.h>
#include <WebKit2/WKRetainPtr.h>
#include <WebKit2/WKSerializedScriptValue.h>

namespace TestWebKitAPI {

static bool testDone;

static void didRunStep1StateChangeVisibleToHidden(WKSerializedScriptValueRef, WKErrorRef, void*);
static void didRunStep2StateChangeHiddenToPrerender(WKSerializedScriptValueRef, WKErrorRef, void*);
static void didRunStep3StateChangePrerenderToUnloaded(WKSerializedScriptValueRef, WKErrorRef, void*);
static void didRunStep4InStateUnloaded(WKSerializedScriptValueRef, WKErrorRef, void*);

static void setPageVisibilityStateWithEvalContinuation(PlatformWebView* webView, WKPageVisibilityState visibilityState, WKPageRunJavaScriptFunction callback)
{
    WKPageSetVisibilityState(webView->page(), visibilityState, false);
    WKRetainPtr<WKStringRef> javaScriptString(AdoptWK, WKStringCreateWithUTF8CString("document.visibilityState"));
    WKPageRunJavaScriptInMainFrame(webView->page(), javaScriptString.get(), static_cast<void*>(webView), callback);
}

static void assertSerializedScriptValueIsStringValue(WKSerializedScriptValueRef serializedValue, WKErrorRef error, const char *expected)
{
    EXPECT_NULL(error);
    EXPECT_NOT_NULL(serializedValue);
    if (error || !serializedValue)
        return;

    JSGlobalContextRef scriptContext = JSGlobalContextCreate(0);
    JSValueRef scriptValue = WKSerializedScriptValueDeserialize(serializedValue, scriptContext, 0);
    EXPECT_TRUE(JSValueIsString(scriptContext, scriptValue));
    if (!JSValueIsString(scriptContext, scriptValue)) {
        JSGlobalContextRelease(scriptContext);
        return;
    }

    JSStringRef expectedString = JSStringCreateWithUTF8CString(expected);
    JSStringRef scriptString = JSValueToStringCopy(scriptContext, scriptValue, 0);
    EXPECT_TRUE(JSStringIsEqual(scriptString, expectedString));

    JSStringRelease(scriptString);
    JSStringRelease(expectedString);
    JSGlobalContextRelease(scriptContext);
}

static void didRunStep1StateChangeVisibleToHidden(WKSerializedScriptValueRef resultSerializedScriptValue, WKErrorRef error, void* context)
{
    assertSerializedScriptValueIsStringValue(resultSerializedScriptValue, error, "visible");
    setPageVisibilityStateWithEvalContinuation(static_cast<PlatformWebView*>(context), kWKPageVisibilityStateHidden, didRunStep2StateChangeHiddenToPrerender);
}

static void didRunStep2StateChangeHiddenToPrerender(WKSerializedScriptValueRef resultSerializedScriptValue, WKErrorRef error, void* context)
{
    assertSerializedScriptValueIsStringValue(resultSerializedScriptValue, error, "hidden");
    setPageVisibilityStateWithEvalContinuation(static_cast<PlatformWebView*>(context), kWKPageVisibilityStatePrerender, didRunStep3StateChangePrerenderToUnloaded);
}

static void didRunStep3StateChangePrerenderToUnloaded(WKSerializedScriptValueRef resultSerializedScriptValue, WKErrorRef error, void* context)
{
    assertSerializedScriptValueIsStringValue(resultSerializedScriptValue, error, "prerender");
    setPageVisibilityStateWithEvalContinuation(static_cast<PlatformWebView*>(context), kWKPageVisibilityStateUnloaded, didRunStep4InStateUnloaded);
}

static void didRunStep4InStateUnloaded(WKSerializedScriptValueRef resultSerializedScriptValue, WKErrorRef error, void* context)
{
    assertSerializedScriptValueIsStringValue(resultSerializedScriptValue, error, "unloaded");
    testDone = true;
}

TEST(WebKit2, PageVisibilityState)
{
    WKRetainPtr<WKContextRef> context(AdoptWK, WKContextCreate());

    // Pass the PlatformWebView webView on as the context of the evals, so we can continue to eval on it.
    PlatformWebView webView(context.get());
    setPageVisibilityStateWithEvalContinuation(&webView, kWKPageVisibilityStateVisible, didRunStep1StateChangeVisibleToHidden);

    Util::run(&testDone);
}

} // namespace TestWebKitAPI