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LibWeb: Add a blinking text cursor :^)

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Each Web::Frame now has a cursor that sits at a DOM::Position. It will
blink and look like a nice regular text cursor.

It doesn't really do anything yet, but it will eventually.
This commit is contained in:
Andreas Kling 2020-08-02 11:52:35 +02:00
parent e496a74bb3
commit 2c679d0c8b
5 changed files with 66 additions and 0 deletions
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28
Libraries/LibWeb/Page/Frame.cpp
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@ -40,6 +40,7 @@ Frame::Frame(DOM::Element& host_element, Frame& main_frame)
, m_event_handler({}, *this)
, m_host_element(host_element.make_weak_ptr())
{
setup();
}
Frame::Frame(Page& page)
@ -48,12 +49,23 @@ Frame::Frame(Page& page)
, m_loader(*this)
, m_event_handler({}, *this)
{
setup();
}
Frame::~Frame()
{
}
void Frame::setup()
{
m_cursor_blink_timer = Core::Timer::construct(500, [this] {
if (m_cursor_position.node() && m_cursor_position.node()->layout_node()) {
m_cursor_blink_state = !m_cursor_blink_state;
m_cursor_position.node()->layout_node()->set_needs_display();
}
});
}
void Frame::set_document(DOM::Document* document)
{
if (m_document == document)
@ -168,4 +180,20 @@ Gfx::IntPoint Frame::to_main_frame_position(const Gfx::IntPoint& a_position)
return position;
}
void Frame::set_cursor_position(const DOM::Position & position)
{
if (m_cursor_position == position)
return;
if (m_cursor_position.node() && m_cursor_position.node()->layout_node())
m_cursor_position.node()->layout_node()->set_needs_display();
m_cursor_position = position;
if (m_cursor_position.node() && m_cursor_position.node()->layout_node())
m_cursor_position.node()->layout_node()->set_needs_display();
dbg() << "Cursor position: " << m_cursor_position;
}
}