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LibWeb: Add support for range deletion.

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This commit is contained in:
asynts 2020-12-01 23:36:12 +01:00 • committed by Andreas Kling
parent bbcc5a9332
commit 43dc47a494
8 changed files with 107 additions and 6 deletions
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26
Libraries/LibWeb/Page/EditEventHandler.cpp
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@ -30,10 +30,32 @@
#include <LibWeb/Layout/LayoutPosition.h>
#include <LibWeb/Page/Frame.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/Layout/InitialContainingBlockBox.h>
#include "EditEventHandler.h"
namespace Web {
void EditEventHandler::handle_delete(DOM::Range range)
{
if (range.start().node() != range.end().node())
TODO();
if (is<DOM::Text>(*range.start().node())) {
auto& node = downcast<DOM::Text>(*range.start().node());
StringBuilder builder;
builder.append(node.data().substring_view(0, range.start().offset()));
builder.append(node.data().substring_view(range.end().offset()));
node.set_data(builder.to_string());
m_frame.document()->layout_node()->set_selection({});
node.invalidate_style();
}
}
void EditEventHandler::handle_delete(DOM::Position position)
{
if (position.offset() == 0)
@ -41,6 +63,7 @@ void EditEventHandler::handle_delete(DOM::Position position)
if (is<DOM::Text>(*position.node())) {
auto& node = downcast<DOM::Text>(*position.node());
StringBuilder builder;
builder.append(node.data().substring_view(0, position.offset() - 1));
builder.append(node.data().substring_view(position.offset()));
@ -53,10 +76,9 @@ void EditEventHandler::handle_delete(DOM::Position position)
void EditEventHandler::handle_insert(DOM::Position position, u32 code_point)
{
// FIXME: Unicode fiasco.
if (is<DOM::Text>(*position.node())) {
auto& node = downcast<DOM::Text>(*position.node());
StringBuilder builder;
builder.append(node.data().substring_view(0, position.offset()));
builder.append_code_point(code_point);