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// Copyright 2015 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 "core/layout/LayoutObject.h"
#include "core/layout/LayoutTestHelper.h"
#include "core/layout/LayoutView.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace blink {
class LayoutObjectTest : public RenderingTest {
public:
LayoutObjectTest()
: RenderingTest(SingleChildFrameLoaderClient::create()) {}
protected:
LayoutView& layoutView() const { return *document().layoutView(); }
};
TEST_F(LayoutObjectTest, LayoutDecoratedNameCalledWithPositionedObject)
{
setBodyInnerHTML("<div id='div' style='position: fixed'>test</div>");
Element* div = document().getElementById(AtomicString("div"));
ASSERT(div);
LayoutObject* obj = div->layoutObject();
ASSERT(obj);
EXPECT_STREQ("LayoutBlockFlow (positioned)", obj->decoratedName().ascii().data());
}
// Some display checks.
TEST_F(LayoutObjectTest, DisplayNoneCreateObject)
{
setBodyInnerHTML("<div style='display:none'></div>");
EXPECT_EQ(nullptr, document().body()->firstChild()->layoutObject());
}
TEST_F(LayoutObjectTest, DisplayBlockCreateObject)
{
setBodyInnerHTML("<foo style='display:block'></foo>");
LayoutObject* layoutObject = document().body()->firstChild()->layoutObject();
EXPECT_NE(nullptr, layoutObject);
EXPECT_TRUE(layoutObject->isLayoutBlockFlow());
EXPECT_FALSE(layoutObject->isInline());
}
TEST_F(LayoutObjectTest, DisplayInlineBlockCreateObject)
{
setBodyInnerHTML("<foo style='display:inline-block'></foo>");
LayoutObject* layoutObject = document().body()->firstChild()->layoutObject();
EXPECT_NE(nullptr, layoutObject);
EXPECT_TRUE(layoutObject->isLayoutBlockFlow());
EXPECT_TRUE(layoutObject->isInline());
}
// Containing block test.
TEST_F(LayoutObjectTest, ContainingBlockLayoutViewShouldBeNull)
{
EXPECT_EQ(nullptr, layoutView().containingBlock());
}
TEST_F(LayoutObjectTest, ContainingBlockBodyShouldBeDocumentElement)
{
EXPECT_EQ(document().body()->layoutObject()->containingBlock(), document().documentElement()->layoutObject());
}
TEST_F(LayoutObjectTest, ContainingBlockDocumentElementShouldBeLayoutView)
{
EXPECT_EQ(document().documentElement()->layoutObject()->containingBlock(), layoutView());
}
TEST_F(LayoutObjectTest, ContainingBlockStaticLayoutObjectShouldBeParent)
{
setBodyInnerHTML("<foo style='position:static'></foo>");
LayoutObject* bodyLayoutObject = document().body()->layoutObject();
LayoutObject* layoutObject = bodyLayoutObject->slowFirstChild();
EXPECT_EQ(layoutObject->containingBlock(), bodyLayoutObject);
}
TEST_F(LayoutObjectTest, ContainingBlockAbsoluteLayoutObjectShouldBeLayoutView)
{
setBodyInnerHTML("<foo style='position:absolute'></foo>");
LayoutObject* layoutObject = document().body()->layoutObject()->slowFirstChild();
EXPECT_EQ(layoutObject->containingBlock(), layoutView());
}
TEST_F(LayoutObjectTest, ContainingBlockAbsoluteLayoutObjectShouldBeNonStaticallyPositionedBlockAncestor)
{
setBodyInnerHTML("<div style='position:relative'><bar style='position:absolute'></bar></div>");
LayoutObject* containingBlocklayoutObject = document().body()->layoutObject()->slowFirstChild();
LayoutObject* layoutObject = containingBlocklayoutObject->slowFirstChild();
EXPECT_EQ(layoutObject->containingBlock(), containingBlocklayoutObject);
}
TEST_F(LayoutObjectTest, ContainingBlockAbsoluteLayoutObjectShouldNotBeNonStaticlyPositionedInlineAncestor)
{
setBodyInnerHTML("<span style='position:relative'><bar style='position:absolute'></bar></span>");
LayoutObject* bodyLayoutObject = document().body()->layoutObject();
LayoutObject* layoutObject = bodyLayoutObject->slowFirstChild()->slowFirstChild();
// Sanity check: Make sure we don't generate anonymous objects.
EXPECT_EQ(nullptr, bodyLayoutObject->slowFirstChild()->nextSibling());
EXPECT_EQ(nullptr, layoutObject->slowFirstChild());
EXPECT_EQ(nullptr, layoutObject->nextSibling());
EXPECT_EQ(layoutObject->containingBlock(), bodyLayoutObject);
}
TEST_F(LayoutObjectTest, LayoutTextMapToVisibleRectInAncestorSpace)
{
setBodyInnerHTML(
"<style>body { margin: 0; }</style>"
"<div id='container' style='overflow: scroll; width: 50px; height: 50px'>"
" <span><img style='width: 20px; height: 100px'></span>"
" text text text text text text text"
"</div>");
LayoutBlock* container = toLayoutBlock(getLayoutObjectByElementId("container"));
LayoutText* text = toLayoutText(container->lastChild());
container->setScrollTop(LayoutUnit(50));
LayoutRect rect(0, 60, 20, 80);
EXPECT_TRUE(text->mapToVisibleRectInAncestorSpace(container, rect, nullptr));
EXPECT_EQ(rect, LayoutRect(0, 10, 20, 80));
rect = LayoutRect(0, 60, 80, 0);
EXPECT_TRUE(text->mapToVisibleRectInAncestorSpace(container, rect, nullptr, EdgeInclusive));
EXPECT_EQ(rect, LayoutRect(0, 10, 80, 0));
}
TEST_F(LayoutObjectTest, LayoutInlineMapToVisibleRectInAncestorSpace)
{
document().setBaseURLOverride(KURL(ParsedURLString, "http://test.com"));
setBodyInnerHTML(
"<style>body { margin: 0; }</style>"
"<div id='container' style='overflow: scroll; width: 50px; height: 50px'>"
" <span><img style='width: 20px; height: 100px'></span>"
" <span id=leaf></span></div>");
LayoutBlock* container = toLayoutBlock(getLayoutObjectByElementId("container"));
LayoutObject* leaf = container->lastChild();
container->setScrollTop(LayoutUnit(50));
LayoutRect rect(0, 60, 20, 80);
EXPECT_TRUE(leaf->mapToVisibleRectInAncestorSpace(container, rect, nullptr));
EXPECT_EQ(rect, LayoutRect(0, 10, 20, 80));
rect = LayoutRect(0, 60, 80, 0);
EXPECT_TRUE(leaf->mapToVisibleRectInAncestorSpace(container, rect, nullptr, EdgeInclusive));
EXPECT_EQ(rect, LayoutRect(0, 10, 80, 0));
}
TEST_F(LayoutObjectTest, LayoutViewMapToVisibleRectInAncestorSpace)
{
document().setBaseURLOverride(KURL(ParsedURLString, "http://test.com"));
setBodyInnerHTML(
"<style>body { margin: 0; }</style>"
"<div id=frameContainer>"
" <iframe id=frame src='http://test.com' width='50' height='50' frameBorder='0'></iframe>"
"</div>");
Document& frameDocument = setupChildIframe("frame", "<style>body { margin: 0; }</style><span><img style='width: 20px; height: 100px'></span>text text text");
frameDocument.updateLayout();
LayoutBlock* frameContainer = toLayoutBlock(getLayoutObjectByElementId("frameContainer"));
LayoutBlock* frameBody = toLayoutBlock(frameDocument.body()->layoutObject());
LayoutText* frameText = toLayoutText(frameBody->lastChild());
// This case involves clipping: frame height is 50, y-coordinate of result rect is 13,
// so height should be clipped to (50 - 13) == 37.
frameDocument.view()->setScrollPosition(DoublePoint(0, 47), ProgrammaticScroll);
LayoutRect rect(4, 60, 20, 80);
EXPECT_TRUE(frameText->mapToVisibleRectInAncestorSpace(frameContainer, rect, nullptr));
EXPECT_EQ(rect, LayoutRect(4, 13, 20, 37));
rect = LayoutRect(4, 60, 0, 80);
EXPECT_TRUE(frameText->mapToVisibleRectInAncestorSpace(frameContainer, rect, nullptr, EdgeInclusive));
EXPECT_EQ(rect, LayoutRect(4, 13, 0, 37));
}
} // namespace blink
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