VisualRectMappingTest

third_party/WebKit/Source/core/layout/LayoutObjectTest.cpp

 // 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"
 
@@ skipping 91 matching lines @@
     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, LayoutTextMapToVisualRectInAncestorSpace)
-{
-    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->mapToVisualRectInAncestorSpace(container, rect));
-    EXPECT_EQ(rect, LayoutRect(0, 10, 20, 80));
-
-    rect = LayoutRect(0, 60, 80, 0);
-    EXPECT_TRUE(text->mapToVisualRectInAncestorSpace(container, rect, EdgeInclusive));
-    EXPECT_EQ(rect, LayoutRect(0, 10, 80, 0));
-}
-
-TEST_F(LayoutObjectTest, LayoutInlineMapToVisualRectInAncestorSpace)
-{
-    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->mapToVisualRectInAncestorSpace(container, rect));
-    EXPECT_EQ(rect, LayoutRect(0, 10, 20, 80));
-
-    rect = LayoutRect(0, 60, 80, 0);
-    EXPECT_TRUE(leaf->mapToVisualRectInAncestorSpace(container, rect, EdgeInclusive));
-    EXPECT_EQ(rect, LayoutRect(0, 10, 80, 0));
-}
-
-TEST_F(LayoutObjectTest, LayoutViewMapToVisualRectInAncestorSpace)
-{
-    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->mapToVisualRectInAncestorSpace(frameContainer, rect));
-    EXPECT_EQ(rect, LayoutRect(4, 13, 20, 37));
-
-    rect = LayoutRect(4, 60, 0, 80);
-    EXPECT_TRUE(frameText->mapToVisualRectInAncestorSpace(frameContainer, rect, EdgeInclusive));
-    EXPECT_EQ(rect, LayoutRect(4, 13, 0, 37));
-}
-
-TEST_F(LayoutObjectTest, LayoutViewMapToVisualRectInAncestorSpaceSubpixelRounding)
-{
-    document().setBaseURLOverride(KURL(ParsedURLString, "http://test.com"));
-    setBodyInnerHTML(
-        "<style>body { margin: 0; }</style>"
-        "<div id=frameContainer style='position: relative; left: 0.5px'>"
-        "  <iframe id=frame style='position: relative; left: 0.5px' src='http://test.com' width='200' height='200' frameBorder='0'></iframe>"
-        "</div>");
-
-    Document& frameDocument = setupChildIframe(
-        "frame", "<style>body { margin: 0; }</style><div id='target' style='position: relative; width: 100px; height: 100px; left: 0.5px'>");
-    frameDocument.updateLayout();
-
-    LayoutBlock* frameContainer = toLayoutBlock(getLayoutObjectByElementId("frameContainer"));
-    LayoutObject* target = frameDocument.getElementById("target")->layoutObject();
-    LayoutRect rect(0, 0, 100, 100);
-    EXPECT_TRUE(target->mapToVisualRectInAncestorSpace(frameContainer, rect));
-    // When passing from the iframe to the parent frame, the rect of (0.5, 0, 100, 100) is expanded to (0, 0, 100, 100), and then offset by
-    // the 0.5 offset of frameContainer.
-    EXPECT_EQ(LayoutRect(LayoutPoint(DoublePoint(0.5, 0)), LayoutSize(101, 100)), rect);
-}
-
-TEST_F(LayoutObjectTest, OverflowRectMappingWithSelfFlippedWritingMode)
-{
-    setBodyInnerHTML(
-        "<div id='target' style='writing-mode: vertical-rl; box-shadow: 40px 20px black;"
-        "    width: 100px; height: 50px; position: absolute; top: 111px; left: 222px'>"
-        "</div>");
-
-    LayoutBlock* target = toLayoutBlock(getLayoutObjectByElementId("target"));
-    LayoutRect overflowRect = target->localOverflowRectForPaintInvalidation();
-    // -40 = -box_shadow_offset_x(40) (with target's top-right corner as the origin)
-    // 140 = width(100) + box_shadow_offset_x(40)
-    // 70 = height(50) + box_shadow_offset_y(20)
-    EXPECT_EQ(LayoutRect(-40, 0, 140, 70), overflowRect);
-
-    LayoutRect rect = overflowRect;
-    EXPECT_TRUE(target->mapToVisualRectInAncestorSpace(target, rect));
-    // This rect is in physical coordinates of target.
-    EXPECT_EQ(LayoutRect(0, 0, 140, 70), rect);
-
-    rect = overflowRect;
-    EXPECT_TRUE(target->mapToVisualRectInAncestorSpace(&layoutView(), rect));
-    EXPECT_EQ(LayoutRect(222, 111, 140, 70), rect);
-}
-
-TEST_F(LayoutObjectTest, OverflowRectMappingWithContainerFlippedWritingMode)
-{
-    setBodyInnerHTML(
-        "<div id='container' style='writing-mode: vertical-rl; position: absolute; top: 111px; left: 222px'>"
-        "    <div id='target' style='box-shadow: 40px 20px black; width: 100px; height: 90px'></div>"
-        "    <div style='width: 100px; height: 100px'></div>"
-        "</div>");
-
-    LayoutBlock* target = toLayoutBlock(getLayoutObjectByElementId("target"));
-    LayoutRect targetOverflowRect = target->localOverflowRectForPaintInvalidation();
-    // -40 = -box_shadow_offset_x(40) (with target's top-right corner as the origin)
-    // 140 = width(100) + box_shadow_offset_x(40)
-    // 110 = height(90) + box_shadow_offset_y(20)
-    EXPECT_EQ(LayoutRect(-40, 0, 140, 110), targetOverflowRect);
-
-    LayoutRect rect = targetOverflowRect;
-    EXPECT_TRUE(target->mapToVisualRectInAncestorSpace(target, rect));
-    // This rect is in physical coordinates of target.
-    EXPECT_EQ(LayoutRect(0, 0, 140, 110), rect);
-
-    LayoutBlock* container = toLayoutBlock(getLayoutObjectByElementId("container"));
-    rect = targetOverflowRect;
-    EXPECT_TRUE(target->mapToVisualRectInAncestorSpace(container, rect));
-    // 100 is the physical x location of target in container.
-    EXPECT_EQ(LayoutRect(100, 0, 140, 110), rect);
-    rect = targetOverflowRect;
-    EXPECT_TRUE(target->mapToVisualRectInAncestorSpace(&layoutView(), rect));
-    EXPECT_EQ(LayoutRect(322, 111, 140, 110), rect);
-
-    LayoutRect containerOverflowRect = container->localOverflowRectForPaintInvalidation();
-    EXPECT_EQ(LayoutRect(-40, 0, 240, 110), containerOverflowRect);
-    rect = containerOverflowRect;
-    EXPECT_TRUE(container->mapToVisualRectInAncestorSpace(container, rect));
-    EXPECT_EQ(LayoutRect(0, 0, 240, 110), rect);
-    rect = containerOverflowRect;
-    EXPECT_TRUE(container->mapToVisualRectInAncestorSpace(&layoutView(), rect));
-    EXPECT_EQ(LayoutRect(222, 111, 240, 110), rect);
-}
-
-TEST_F(LayoutObjectTest, OverflowRectMappingWithContainerOverflowClip)
-{
-    setBodyInnerHTML(
-        "<div id='container' style='position: absolute; top: 111px; left: 222px;"
-        "    border: 10px solid red; overflow: hidden; width: 50px; height: 80px;'>"
-        "    <div id='target' style='box-shadow: 40px 20px black; width: 100px; height: 90px'></div>"
-        "</div>");
-
-    LayoutBlock* container = toLayoutBlock(getLayoutObjectByElementId("container"));
-    EXPECT_EQ(LayoutUnit(0), container->scrollTop());
-    EXPECT_EQ(LayoutUnit(0), container->scrollLeft());
-    container->setScrollTop(LayoutUnit(7));
-    container->setScrollLeft(LayoutUnit(8));
-
-    LayoutBlock* target = toLayoutBlock(getLayoutObjectByElementId("target"));
-    LayoutRect targetOverflowRect = target->localOverflowRectForPaintInvalidation();
-    // 140 = width(100) + box_shadow_offset_x(40)
-    // 110 = height(90) + box_shadow_offset_y(20)
-    EXPECT_EQ(LayoutRect(0, 0, 140, 110), targetOverflowRect);
-    LayoutRect rect = targetOverflowRect;
-    EXPECT_TRUE(target->mapToVisualRectInAncestorSpace(target, rect));
-    EXPECT_EQ(LayoutRect(0, 0, 140, 110), rect);
-
-    rect = targetOverflowRect;
-    EXPECT_TRUE(target->mapToVisualRectInAncestorSpace(container, rect));
-    // 2 = target_x(0) + container_border_left(10) - scroll_left(8)
-    // 3 = target_y(0) + container_border_top(10) - scroll_top(7)
-    // Rect is not clipped by container's overflow clip.
-    EXPECT_EQ(LayoutRect(2, 3, 140, 110), rect);
-
-    rect = targetOverflowRect;
-    EXPECT_TRUE(target->mapToVisualRectInAncestorSpace(&layoutView(), rect));
-    // (2, 3, 140, 100) is first clipped by container's overflow clip, to (10, 10, 50, 80),
-    // then is by added container's offset in LayoutView (111, 222).
-    EXPECT_EQ(LayoutRect(232, 121, 50, 80), rect);
-
-    LayoutRect containerOverflowRect = container->localOverflowRectForPaintInvalidation();
-    // Because container has overflow clip, its visual overflow doesn't include overflow from children.
-    // 70 = width(50) + border_left_width(10) + border_right_width(10)
-    // 100 = height(80) + border_top_width(10) + border_bottom_width(10)
-    EXPECT_EQ(LayoutRect(0, 0, 70, 100), containerOverflowRect);
-    rect = containerOverflowRect;
-    EXPECT_TRUE(container->mapToVisualRectInAncestorSpace(container, rect));
-    // Container should not apply overflow clip on its own overflow rect.
-    EXPECT_EQ(LayoutRect(0, 0, 70, 100), rect);
-
-    rect = containerOverflowRect;
-    EXPECT_TRUE(container->mapToVisualRectInAncestorSpace(&layoutView(), rect));
-    EXPECT_EQ(LayoutRect(222, 111, 70, 100), rect);
-}
-
-TEST_F(LayoutObjectTest, OverflowRectMappingWithContainerFlippedWritingModeAndOverflowClip)
-{
-    setBodyInnerHTML(
-        "<div id='container' style='writing-mode: vertical-rl; position: absolute; top: 111px; left: 222px;"
-        "    border: solid red; border-width: 10px 20px 30px 40px;"
-        "    overflow: hidden; width: 50px; height: 80px'>"
-        "    <div id='target' style='box-shadow: 40px 20px black; width: 100px; height: 90px'></div>"
-        "    <div style='width: 100px; height: 100px'></div>"
-        "</div>");
-
-    LayoutBlock* container = toLayoutBlock(getLayoutObjectByElementId("container"));
-    EXPECT_EQ(LayoutUnit(0), container->scrollTop());
-    // The initial scroll offset is to the left-most because of flipped blocks writing mode.
-    // 150 = total_layout_overflow(100 + 100) - width(50)
-    EXPECT_EQ(LayoutUnit(150), container->scrollLeft());
-    container->setScrollTop(LayoutUnit(7));
-    container->setScrollLeft(LayoutUnit(142)); // Scroll to the right by 8 pixels.
-
-    LayoutBlock* target = toLayoutBlock(getLayoutObjectByElementId("target"));
-    LayoutRect targetOverflowRect = target->localOverflowRectForPaintInvalidation();
-    // -40 = -box_shadow_offset_x(40) (with target's top-right corner as the origin)
-    // 140 = width(100) + box_shadow_offset_x(40)
-    // 110 = height(90) + box_shadow_offset_y(20)
-    EXPECT_EQ(LayoutRect(-40, 0, 140, 110), targetOverflowRect);
-
-    LayoutRect rect = targetOverflowRect;
-    EXPECT_TRUE(target->mapToVisualRectInAncestorSpace(target, rect));
-    // This rect is in physical coordinates of target.
-    EXPECT_EQ(LayoutRect(0, 0, 140, 110), rect);
-
-    rect = targetOverflowRect;
-    EXPECT_TRUE(target->mapToVisualRectInAncestorSpace(container, rect));
-    // -2 = target_physical_x(100) + container_border_left(40) - scroll_left(142)
-    // 3 = target_y(0) + container_border_top(10) - scroll_top(7)
-    // Rect is not clipped by container's overflow clip.
-    EXPECT_EQ(LayoutRect(-2, 3, 140, 110), rect);
-
-    rect = targetOverflowRect;
-    EXPECT_TRUE(target->mapToVisualRectInAncestorSpace(&layoutView(), rect));
-    // (-2, 3, 140, 100) is first clipped by container's overflow clip, to (40, 10, 50, 80),
-    // then is added by container's offset in LayoutView (111, 222).
-    // TODO(crbug.com/600039): rect.x() should be 262 (left + border-left), but is offset
-    // by extra horizontal border-widths because of layout error.
-    EXPECT_EQ(LayoutRect(322, 121, 50, 80), rect);
-
-    LayoutRect containerOverflowRect = container->localOverflowRectForPaintInvalidation();
-    // Because container has overflow clip, its visual overflow doesn't include overflow from children.
-    // 110 = width(50) + border_left_width(40) + border_right_width(20)
-    // 120 = height(80) + border_top_width(10) + border_bottom_width(30)
-    EXPECT_EQ(LayoutRect(0, 0, 110, 120), containerOverflowRect);
-
-    rect = containerOverflowRect;
-    EXPECT_TRUE(container->mapToVisualRectInAncestorSpace(container, rect));
-    EXPECT_EQ(LayoutRect(0, 0, 110, 120), rect);
-
-    rect = containerOverflowRect;
-    EXPECT_TRUE(container->mapToVisualRectInAncestorSpace(&layoutView(), rect));
-    // TODO(crbug.com/600039): rect.x() should be 222 (left), but is offset by extra horizontal
-    // border-widths because of layout error.
-    EXPECT_EQ(LayoutRect(282, 111, 110, 120), rect);
-}
-
 } // namespace blink