jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this
9 * list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <LibCore/Timer.h>
28#include <LibHTML/CSS/StyleProperties.h>
29#include <LibHTML/CSS/StyleValue.h>
30#include <LibHTML/DOM/HTMLBlinkElement.h>
31#include <LibHTML/Layout/LayoutNode.h>
32
33HTMLBlinkElement::HTMLBlinkElement(Document& document, const String& tag_name)
34 : HTMLElement(document, tag_name)
35 , m_timer(Core::Timer::construct())
36{
37 m_timer->set_interval(500);
38 m_timer->on_timeout = [this] { blink(); };
39 m_timer->start();
40}
41
42HTMLBlinkElement::~HTMLBlinkElement()
43{
44}
45
46void HTMLBlinkElement::blink()
47{
48 if (!layout_node())
49 return;
50
51 layout_node()->set_visible(!layout_node()->is_visible());
52 layout_node()->set_needs_display();
53}