mirror of
https://github.com/RGBCube/serenity
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92 lines
3.6 KiB
C++
92 lines
3.6 KiB
C++
/*
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* Copyright (c) 2018-2022, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/DOM/Range.h>
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#include <LibWeb/DOM/Text.h>
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#include <LibWeb/HTML/HTMLInputElement.h>
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#include <LibWeb/HTML/Window.h>
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#include <LibWeb/Layout/TextNode.h>
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namespace Web::DOM {
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Text::Text(Document& document, String const& data)
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: CharacterData(document, NodeType::TEXT_NODE, data)
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{
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}
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// https://dom.spec.whatwg.org/#dom-text-text
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NonnullRefPtr<Text> Text::create_with_global_object(Bindings::WindowObject& window, String const& data)
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{
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return make_ref_counted<Text>(window.impl().associated_document(), data);
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}
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void Text::set_owner_input_element(Badge<HTML::HTMLInputElement>, HTML::HTMLInputElement& input_element)
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{
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m_owner_input_element = input_element;
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}
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// https://dom.spec.whatwg.org/#dom-text-splittext
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// https://dom.spec.whatwg.org/#concept-text-split
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ExceptionOr<NonnullRefPtr<Text>> Text::split_text(size_t offset)
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{
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// 1. Let length be node’s length.
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auto length = this->length();
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// 2. If offset is greater than length, then throw an "IndexSizeError" DOMException.
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if (offset > length)
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return DOM::IndexSizeError::create("Split offset is greater than length");
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// 3. Let count be length minus offset.
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auto count = length - offset;
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// 4. Let new data be the result of substringing data with node node, offset offset, and count count.
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auto new_data = TRY(substring_data(offset, count));
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// 5. Let new node be a new Text node, with the same node document as node. Set new node’s data to new data.
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auto new_node = adopt_ref(*new Text(document(), new_data));
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// 6. Let parent be node’s parent.
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RefPtr<Node> parent = this->parent();
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// 7. If parent is not null, then:
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if (parent) {
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// 1. Insert new node into parent before node’s next sibling.
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parent->insert_before(new_node, next_sibling());
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// 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.
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for (auto& range : Range::live_ranges()) {
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if (range->start_container() == this && range->start_offset() > offset)
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range->set_start(new_node, range->start_offset() - offset);
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}
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// 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.
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for (auto& range : Range::live_ranges()) {
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if (range->end_container() == this && range->end_offset() > offset)
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range->set_end(new_node, range->end_offset() - offset);
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}
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// 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.
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for (auto& range : Range::live_ranges()) {
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if (range->start_container() == this && range->start_offset() == index() + 1)
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range->set_start(*range->start_container(), range->start_offset() + 1);
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}
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// 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.
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for (auto& range : Range::live_ranges()) {
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if (range->end_container() == parent && range->end_offset() == index() + 1) {
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range->set_end(*range->end_container(), range->end_offset() + 1);
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}
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}
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}
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// 8. Replace data with node node, offset offset, count count, and data the empty string.
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TRY(replace_data(offset, count, ""));
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// 9. Return new node.
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return new_node;
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}
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}
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