sonyoss-vita-webkit/Tools/TestWebKitAPI/Tests/WebKit2/CoordinatedGraphics/WKViewUserViewportToContents.cpp

/*
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#include "config.h"

#include "WebKit2/WKView.h"
#include "WebKit2/WKRetainPtr.h"

namespace TestWebKitAPI {

TEST(WebKit2, WKViewUserViewportToContents)
{
    // This test creates a WKView and uses the WKViewUserViewportToContents
    // function to convert viewport coordinates to contents (page) coordinates.
    // It scrolls and scales around the contents and check if the coordinates
    // conversion math is right.

    WKRetainPtr<WKContextRef> context(AdoptWK, WKContextCreate());
    WKRetainPtr<WKViewRef> webView(AdoptWK, WKViewCreate(context.get(), 0));

    WKViewInitialize(webView.get());
    WKPageSetUseFixedLayout(WKViewGetPage(webView.get()), false);

    WKPoint out;

    // At scale 1.0 the viewport and contents coordinates should match.

    WKViewSetContentScaleFactor(webView.get(), 1.0);
    WKViewSetContentPosition(webView.get(), WKPointMake(0, 0));

    out = WKViewUserViewportToContents(webView.get(), WKPointMake(0, 0));
    EXPECT_EQ(out.x, 0);
    EXPECT_EQ(out.y, 0);

    out = WKViewUserViewportToContents(webView.get(), WKPointMake(10, 10));
    EXPECT_EQ(out.x, 10);
    EXPECT_EQ(out.y, 10);

    WKViewSetContentPosition(webView.get(), WKPointMake(20, 20));

    out = WKViewUserViewportToContents(webView.get(), WKPointMake(0, 0));
    EXPECT_EQ(out.x, 20);
    EXPECT_EQ(out.y, 20);

    out = WKViewUserViewportToContents(webView.get(), WKPointMake(10, 10));
    EXPECT_EQ(out.x, 30);
    EXPECT_EQ(out.y, 30);

    // At scale 2.0 the viewport distance values will be half
    // the ones seem in the contents.

    WKViewSetContentScaleFactor(webView.get(), 2.0);
    WKViewSetContentPosition(webView.get(), WKPointMake(0, 0));

    out = WKViewUserViewportToContents(webView.get(), WKPointMake(0, 0));
    EXPECT_EQ(out.x, 0);
    EXPECT_EQ(out.y, 0);

    out = WKViewUserViewportToContents(webView.get(), WKPointMake(10, 10));
    EXPECT_EQ(out.x, 5);
    EXPECT_EQ(out.y, 5);

    WKViewSetContentPosition(webView.get(), WKPointMake(20, 20));

    out = WKViewUserViewportToContents(webView.get(), WKPointMake(0, 0));
    EXPECT_EQ(out.x, 20);
    EXPECT_EQ(out.y, 20);

    out = WKViewUserViewportToContents(webView.get(), WKPointMake(10, 10));
    EXPECT_EQ(out.x, 25);
    EXPECT_EQ(out.y, 25);

    // At scale 0.5 the viewport distance values will be twice
    // the ones seem in the contents.

    WKViewSetContentScaleFactor(webView.get(), 0.5);
    WKViewSetContentPosition(webView.get(), WKPointMake(0, 0));

    out = WKViewUserViewportToContents(webView.get(), WKPointMake(0, 0));
    EXPECT_EQ(out.x, 0);
    EXPECT_EQ(out.y, 0);

    out = WKViewUserViewportToContents(webView.get(), WKPointMake(10, 10));
    EXPECT_EQ(out.x, 20);
    EXPECT_EQ(out.y, 20);

    WKViewSetContentPosition(webView.get(), WKPointMake(20, 20));

    out = WKViewUserViewportToContents(webView.get(), WKPointMake(0, 0));
    EXPECT_EQ(out.x, 20);
    EXPECT_EQ(out.y, 20);

    out = WKViewUserViewportToContents(webView.get(), WKPointMake(10, 10));
    EXPECT_EQ(out.x, 40);
    EXPECT_EQ(out.y, 40);

    // Let's add translation to the viewport.

    const int delta = 10;
    WKViewSetUserViewportTranslation(webView.get(), delta, delta);

    WKViewSetContentPosition(webView.get(), WKPointMake(0, 0));

    out = WKViewUserViewportToContents(webView.get(), WKPointMake(0, 0));
    EXPECT_EQ(out.x, 0 - delta / 0.5);
    EXPECT_EQ(out.y, 0 - delta / 0.5);

    out = WKViewUserViewportToContents(webView.get(), WKPointMake(10, 10));
    EXPECT_EQ(out.x, 20 - delta / 0.5);
    EXPECT_EQ(out.y, 20 - delta / 0.5);

    WKViewSetContentPosition(webView.get(), WKPointMake(20, 20));

    out = WKViewUserViewportToContents(webView.get(), WKPointMake(0, 0));
    EXPECT_EQ(out.x, 20 - delta / 0.5);
    EXPECT_EQ(out.y, 20 - delta / 0.5);

    out = WKViewUserViewportToContents(webView.get(), WKPointMake(10, 10));
    EXPECT_EQ(out.x, 40 - delta / 0.5);
    EXPECT_EQ(out.y, 40 - delta / 0.5);
}

}