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LibWeb: Implement HTMLTableElement thead attributes

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* tHead - Getter for the thead element
  The setter is not currently implemented
* createTHead - If necessary, creates a new thead element
  and add it to the table after any caption or colgroup elements,
  but before anything else
* deleteTHead - If a thead element exists in the table, delete it
This commit is contained in:
Adam Hodgen 2021-05-02 18:03:47 +01:00 • committed by Andreas Kling
parent 0fa0367a39
commit b3f7ea9914
Notes: sideshowbarker 2024-07-18 18:25:26 +09:00
4 changed files with 97 additions and 0 deletions
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85
Userland/Libraries/LibWeb/HTML/HTMLTableElement.cpp
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@ -7,6 +7,7 @@
#include <LibWeb/CSS/Parser/DeprecatedCSSParser.h>
#include <LibWeb/DOM/ElementFactory.h>
#include <LibWeb/DOM/HTMLCollection.h>
#include <LibWeb/HTML/HTMLTableColElement.h>
#include <LibWeb/HTML/HTMLTableElement.h>
#include <LibWeb/HTML/HTMLTableRowElement.h>
#include <LibWeb/Namespace.h>
@ -78,6 +79,90 @@ void HTMLTableElement::delete_caption()
}
}
RefPtr<HTMLTableSectionElement> HTMLTableElement::t_head()
{
for (auto* child = first_child(); child; child = child->next_sibling()) {
if (is<HTMLTableSectionElement>(*child)) {
auto table_section_element = &downcast<HTMLTableSectionElement>(*child);
if (table_section_element->tag_name() == TagNames::thead)
return table_section_element;
}
}
return nullptr;
}
DOM::ExceptionOr<void> HTMLTableElement::set_t_head(HTMLTableSectionElement& thead)
{
if (thead.tag_name() != TagNames::thead)
return DOM::HierarchyRequestError::create("Element is not thead");
// FIXME: The spec requires deleting the current thead if thead is null
// Currently the wrapper generator doesn't send us a nullable value
delete_t_head();
// We insert the new thead after any <caption> or <colgroup> elements
DOM::Node* child_to_append_after = nullptr;
for (auto* child = first_child(); child; child = child->next_sibling()) {
if (!is<HTMLElement>(*child))
continue;
if (is<HTMLTableCaptionElement>(*child))
continue;
if (is<HTMLTableColElement>(*child)) {
auto table_col_element = &downcast<HTMLTableColElement>(*child);
if (table_col_element->tag_name() == TagNames::colgroup)
continue;
}
// We have found an element which is not a <caption> or <colgroup>, we'll insert before this
child_to_append_after = child;
break;
}
pre_insert(thead, child_to_append_after);
return {};
}
NonnullRefPtr<HTMLTableSectionElement> HTMLTableElement::create_t_head()
{
auto maybe_thead = t_head();
if (maybe_thead)
return *maybe_thead;
auto thead = DOM::create_element(document(), TagNames::thead, Namespace::HTML);
// We insert the new thead after any <caption> or <colgroup> elements
DOM::Node* child_to_append_after = nullptr;
for (auto* child = first_child(); child; child = child->next_sibling()) {
if (!is<HTMLElement>(*child))
continue;
if (is<HTMLTableCaptionElement>(*child))
continue;
if (is<HTMLTableColElement>(*child)) {
auto table_col_element = &downcast<HTMLTableColElement>(*child);
if (table_col_element->tag_name() == TagNames::colgroup)
continue;
}
// We have found an element which is not a <caption> or <colgroup>, we'll insert before this
child_to_append_after = child;
break;
}
pre_insert(thead, child_to_append_after);
return thead;
}
void HTMLTableElement::delete_t_head()
{
auto maybe_thead = t_head();
if (maybe_thead) {
maybe_thead->remove(false);
}
}
NonnullRefPtr<DOM::HTMLCollection> HTMLTableElement::rows()
{
HTMLTableElement* table_node = this;