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LibWeb: Update live DOM ranges on Text and CharacterData mutations
Taking care of the FIXMEs I added in earlier patches. :^)
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4 changed files with 60 additions and 11 deletions
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@ -4,6 +4,7 @@
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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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@ -58,13 +59,30 @@ ExceptionOr<NonnullRefPtr<Text>> Text::split_text(size_t offset)
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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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// FIXME: 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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// 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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// FIXME: 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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// 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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// FIXME: 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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// 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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// FIXME: 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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// 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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