static LayoutObject* getParentOfFirstLineBox(LayoutBlockFlow* curr, LayoutObject* marker)
{
LayoutObject* firstChild = curr->firstChild();
if (!firstChild)
return nullptr;
bool inQuirksMode = curr->document().inQuirksMode();
for (LayoutObject* currChild = firstChild; currChild; currChild = currChild->nextSibling()) {
if (currChild == marker)
continue;
if (currChild->isInline() && (!currChild->isLayoutInline() || curr->generatesLineBoxesForInlineChild(currChild)))
return curr;
if (currChild->isFloating() || currChild->isOutOfFlowPositioned())
continue;
if (!currChild->isLayoutBlockFlow() || (currChild->isBox() && toLayoutBox(currChild)->isWritingModeRoot()))
break;
if (curr->isListItem() && inQuirksMode && currChild->node()
&& (isHTMLUListElement(*currChild->node()) || isHTMLOListElement(*currChild->node())))
break;
LayoutObject* lineBox = getParentOfFirstLineBox(toLayoutBlockFlow(currChild), marker);
if (lineBox)
return lineBox;
}
return nullptr;
}
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());
}
LayoutObject* FirstLetterPseudoElement::firstLetterTextLayoutObject(const Element& element)
{
LayoutObject* parentLayoutObject = 0;
// If we are looking at a first letter element then we need to find the
// first letter text layoutObject from the parent node, and not ourselves.
if (element.isFirstLetterPseudoElement())
parentLayoutObject = element.parentOrShadowHostElement()->layoutObject();
else
parentLayoutObject = element.layoutObject();
if (!parentLayoutObject
|| !parentLayoutObject->style()->hasPseudoStyle(FIRST_LETTER)
|| !canHaveGeneratedChildren(*parentLayoutObject)
|| !(parentLayoutObject->isLayoutBlockFlow() || parentLayoutObject->isLayoutButton()))
return nullptr;
// Drill down into our children and look for our first text child.
LayoutObject* firstLetterTextLayoutObject = parentLayoutObject->slowFirstChild();
while (firstLetterTextLayoutObject) {
// This can be called when the first letter layoutObject is already in the tree. We do not
// want to consider that layoutObject for our text layoutObject so we go to the sibling (which is
// the LayoutTextFragment for the remaining text).
if (firstLetterTextLayoutObject->style() && firstLetterTextLayoutObject->style()->styleType() == FIRST_LETTER) {
firstLetterTextLayoutObject = firstLetterTextLayoutObject->nextSibling();
} else if (firstLetterTextLayoutObject->isText()) {
// FIXME: If there is leading punctuation in a different LayoutText than
// the first letter, we'll not apply the correct style to it.
RefPtr<StringImpl> str = toLayoutText(firstLetterTextLayoutObject)->isTextFragment() ?
toLayoutTextFragment(firstLetterTextLayoutObject)->completeText() :
toLayoutText(firstLetterTextLayoutObject)->originalText();
if (firstLetterLength(str.get()) || isInvalidFirstLetterLayoutObject(firstLetterTextLayoutObject))
break;
firstLetterTextLayoutObject = firstLetterTextLayoutObject->nextSibling();
} else if (firstLetterTextLayoutObject->isListMarker()) {
firstLetterTextLayoutObject = firstLetterTextLayoutObject->nextSibling();
} else if (firstLetterTextLayoutObject->isFloatingOrOutOfFlowPositioned()) {
if (firstLetterTextLayoutObject->style()->styleType() == FIRST_LETTER) {
firstLetterTextLayoutObject = firstLetterTextLayoutObject->slowFirstChild();
break;
}
firstLetterTextLayoutObject = firstLetterTextLayoutObject->nextSibling();
} else if (firstLetterTextLayoutObject->isReplaced() || firstLetterTextLayoutObject->isLayoutButton()
|| firstLetterTextLayoutObject->isMenuList()) {
return nullptr;
} else if (firstLetterTextLayoutObject->isFlexibleBoxIncludingDeprecated() || firstLetterTextLayoutObject->isLayoutGrid()) {
firstLetterTextLayoutObject = firstLetterTextLayoutObject->nextSibling();
} else if (!firstLetterTextLayoutObject->isInline()
&& firstLetterTextLayoutObject->style()->hasPseudoStyle(FIRST_LETTER)
&& canHaveGeneratedChildren(*firstLetterTextLayoutObject)) {
// There is a layoutObject further down the tree which has FIRST_LETTER set. When that node
// is attached we will handle setting up the first letter then.
return nullptr;
} else {
firstLetterTextLayoutObject = firstLetterTextLayoutObject->slowFirstChild();
}
}
// No first letter text to display, we're done.
// FIXME: This black-list of disallowed LayoutText subclasses is fragile. crbug.com/422336.
// Should counter be on this list? What about LayoutTextFragment?
if (!firstLetterTextLayoutObject || !firstLetterTextLayoutObject->isText() || isInvalidFirstLetterLayoutObject(firstLetterTextLayoutObject))
return nullptr;
return firstLetterTextLayoutObject;
}
static inline bool isMultiColumnContainer(const LayoutObject& object)
{
if (!object.isLayoutBlockFlow())
return false;
return toLayoutBlockFlow(object).multiColumnFlowThread();
}
