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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "config.h"
#include "core/dom/Element.h"
#include "core/dom/StyleEngine.h"
#include "core/frame/FrameView.h"
#include "core/html/HTMLDocument.h"
#include "core/html/HTMLElement.h"
#include "core/rendering/RenderObject.h"
#include "core/testing/DummyPageHolder.h"
#include <gtest/gtest.h>
using namespace blink;
namespace {
TEST(DragUpdateTest, AffectedByDragUpdate)
{
// Check that when dragging the div in the document below, you only get a
// single element style recalc.
OwnPtr<DummyPageHolder> dummyPageHolder = DummyPageHolder::create(IntSize(800, 600));
HTMLDocument& document = toHTMLDocument(dummyPageHolder->document());
document.documentElement()->setInnerHTML("<style>div {width:100px;height:100px} div:-webkit-drag { background-color: green }</style>"
"<div>"
"<span></span>"
"<span></span>"
"<span></span>"
"<span></span>"
"</div>", ASSERT_NO_EXCEPTION);
document.view()->updateLayoutAndStyleIfNeededRecursive();
unsigned startCount = document.styleEngine()->resolverAccessCount();
document.documentElement()->renderer()->updateDragState(true);
document.view()->updateLayoutAndStyleIfNeededRecursive();
unsigned accessCount = document.styleEngine()->resolverAccessCount() - startCount;
ASSERT_EQ(1U, accessCount);
}
TEST(DragUpdateTest, ChildrenOrSiblingsAffectedByDragUpdate)
{
// Check that when dragging the div in the document below, you get a
// full subtree style recalc.
OwnPtr<DummyPageHolder> dummyPageHolder = DummyPageHolder::create(IntSize(800, 600));
HTMLDocument& document = toHTMLDocument(dummyPageHolder->document());
document.documentElement()->setInnerHTML("<style>div {width:100px;height:100px} div:-webkit-drag span { background-color: green }</style>"
"<div>"
"<span></span>"
"<span></span>"
"<span></span>"
"<span></span>"
"</div>", ASSERT_NO_EXCEPTION);
document.updateLayout();
unsigned startCount = document.styleEngine()->resolverAccessCount();
document.documentElement()->renderer()->updateDragState(true);
document.updateLayout();
unsigned accessCount = document.styleEngine()->resolverAccessCount() - startCount;
ASSERT_EQ(5U, accessCount);
}
} // namespace
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