mirror of
https://github.com/RGBCube/serenity
synced 2025-05-15 14:34:59 +00:00
dcbb83a33e
Give the Paintable class some basic helpers for traversing the paint tree. Note that they actually piggy-back on the layout tree for links between nodes.
65 lines
2 KiB
C++
65 lines
2 KiB
C++
/*
|
|
* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <LibWeb/DOM/Document.h>
|
|
#include <LibWeb/Layout/BlockContainer.h>
|
|
#include <LibWeb/Painting/Paintable.h>
|
|
|
|
namespace Web::Painting {
|
|
|
|
Paintable::DispatchEventOfSameName Paintable::handle_mousedown(Badge<EventHandler>, Gfx::IntPoint const&, unsigned, unsigned)
|
|
{
|
|
return DispatchEventOfSameName::Yes;
|
|
}
|
|
|
|
Paintable::DispatchEventOfSameName Paintable::handle_mouseup(Badge<EventHandler>, Gfx::IntPoint const&, unsigned, unsigned)
|
|
{
|
|
return DispatchEventOfSameName::Yes;
|
|
}
|
|
|
|
Paintable::DispatchEventOfSameName Paintable::handle_mousemove(Badge<EventHandler>, Gfx::IntPoint const&, unsigned, unsigned)
|
|
{
|
|
return DispatchEventOfSameName::Yes;
|
|
}
|
|
|
|
bool Paintable::handle_mousewheel(Badge<EventHandler>, Gfx::IntPoint const&, unsigned, unsigned, int wheel_delta_x, int wheel_delta_y)
|
|
{
|
|
if (auto* containing_block = this->containing_block()) {
|
|
if (!containing_block->is_scrollable())
|
|
return false;
|
|
auto new_offset = containing_block->scroll_offset();
|
|
new_offset.translate_by(wheel_delta_x, wheel_delta_y);
|
|
// FIXME: This const_cast is gross.
|
|
// FIXME: Scroll offset shouldn't live in the layout tree.
|
|
const_cast<Layout::BlockContainer*>(containing_block)->set_scroll_offset(new_offset);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
Optional<HitTestResult> Paintable::hit_test(Gfx::FloatPoint const&, HitTestType) const
|
|
{
|
|
return {};
|
|
}
|
|
|
|
Paintable const* Paintable::first_child() const
|
|
{
|
|
auto* layout_child = m_layout_node.first_child();
|
|
for (; layout_child && !layout_child->paintable(); layout_child = layout_child->next_sibling())
|
|
;
|
|
return layout_child ? layout_child->paintable() : nullptr;
|
|
}
|
|
|
|
Paintable const* Paintable::next_sibling() const
|
|
{
|
|
auto* layout_node = m_layout_node.next_sibling();
|
|
for (; layout_node && !layout_node->paintable(); layout_node = layout_node->next_sibling())
|
|
;
|
|
return layout_node ? layout_node->paintable() : nullptr;
|
|
}
|
|
|
|
}
|