mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-10 13:00:29 +03:00
6f433c8656
This is a monster patch that turns all EventTargets into GC-allocated PlatformObjects. Their C++ wrapper classes are removed, and the LibJS garbage collector is now responsible for their lifetimes. There's a fair amount of hacks and band-aids in this patch, and we'll have a lot of cleanup to do after this.
107 lines
4.1 KiB
C++
107 lines
4.1 KiB
C++
/*
|
||
* Copyright (c) 2018-2022, Andreas Kling <kling@serenityos.org>
|
||
*
|
||
* SPDX-License-Identifier: BSD-2-Clause
|
||
*/
|
||
|
||
#include <LibWeb/Bindings/TextPrototype.h>
|
||
#include <LibWeb/DOM/Range.h>
|
||
#include <LibWeb/DOM/Text.h>
|
||
#include <LibWeb/HTML/HTMLInputElement.h>
|
||
#include <LibWeb/HTML/Window.h>
|
||
#include <LibWeb/Layout/TextNode.h>
|
||
|
||
namespace Web::DOM {
|
||
|
||
Text::Text(Document& document, String const& data)
|
||
: CharacterData(document, NodeType::TEXT_NODE, data)
|
||
{
|
||
set_prototype(&window().ensure_web_prototype<Bindings::TextPrototype>("Text"));
|
||
}
|
||
|
||
Text::Text(Document& document, NodeType type, String const& data)
|
||
: CharacterData(document, type, data)
|
||
{
|
||
set_prototype(&window().ensure_web_prototype<Bindings::TextPrototype>("Text"));
|
||
}
|
||
|
||
void Text::visit_edges(Cell::Visitor& visitor)
|
||
{
|
||
Base::visit_edges(visitor);
|
||
visitor.visit(m_owner_input_element.ptr());
|
||
}
|
||
|
||
// https://dom.spec.whatwg.org/#dom-text-text
|
||
JS::NonnullGCPtr<Text> Text::create_with_global_object(HTML::Window& window, String const& data)
|
||
{
|
||
return *window.heap().allocate<Text>(window.realm(), window.associated_document(), data);
|
||
}
|
||
|
||
void Text::set_owner_input_element(Badge<HTML::HTMLInputElement>, HTML::HTMLInputElement& input_element)
|
||
{
|
||
m_owner_input_element = &input_element;
|
||
}
|
||
|
||
// https://dom.spec.whatwg.org/#dom-text-splittext
|
||
// https://dom.spec.whatwg.org/#concept-text-split
|
||
ExceptionOr<JS::NonnullGCPtr<Text>> Text::split_text(size_t offset)
|
||
{
|
||
// 1. Let length be node’s length.
|
||
auto length = this->length();
|
||
|
||
// 2. If offset is greater than length, then throw an "IndexSizeError" DOMException.
|
||
if (offset > length)
|
||
return DOM::IndexSizeError::create("Split offset is greater than length");
|
||
|
||
// 3. Let count be length minus offset.
|
||
auto count = length - offset;
|
||
|
||
// 4. Let new data be the result of substringing data with node node, offset offset, and count count.
|
||
auto new_data = TRY(substring_data(offset, count));
|
||
|
||
// 5. Let new node be a new Text node, with the same node document as node. Set new node’s data to new data.
|
||
auto new_node = JS::NonnullGCPtr(*heap().allocate<Text>(realm(), document(), new_data));
|
||
|
||
// 6. Let parent be node’s parent.
|
||
JS::GCPtr<Node> parent = this->parent();
|
||
|
||
// 7. If parent is not null, then:
|
||
if (parent) {
|
||
// 1. Insert new node into parent before node’s next sibling.
|
||
parent->insert_before(*new_node, next_sibling());
|
||
|
||
// 2. For each live range whose start node is node and start offset is greater than offset, set its start node to new node and decrease its start offset by offset.
|
||
for (auto& range : Range::live_ranges()) {
|
||
if (range->start_container() == this && range->start_offset() > offset)
|
||
range->set_start(*new_node, range->start_offset() - offset);
|
||
}
|
||
|
||
// 3. For each live range whose end node is node and end offset is greater than offset, set its end node to new node and decrease its end offset by offset.
|
||
for (auto& range : Range::live_ranges()) {
|
||
if (range->end_container() == this && range->end_offset() > offset)
|
||
range->set_end(*new_node, range->end_offset() - offset);
|
||
}
|
||
|
||
// 4. For each live range whose start node is parent and start offset is equal to the index of node plus 1, increase its start offset by 1.
|
||
for (auto& range : Range::live_ranges()) {
|
||
if (range->start_container() == this && range->start_offset() == index() + 1)
|
||
range->set_start(*range->start_container(), range->start_offset() + 1);
|
||
}
|
||
|
||
// 5. For each live range whose end node is parent and end offset is equal to the index of node plus 1, increase its end offset by 1.
|
||
for (auto& range : Range::live_ranges()) {
|
||
if (range->end_container() == parent.ptr() && range->end_offset() == index() + 1) {
|
||
range->set_end(*range->end_container(), range->end_offset() + 1);
|
||
}
|
||
}
|
||
}
|
||
|
||
// 8. Replace data with node node, offset offset, count count, and data the empty string.
|
||
TRY(replace_data(offset, count, ""));
|
||
|
||
// 9. Return new node.
|
||
return new_node;
|
||
}
|
||
|
||
}
|