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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 <LibWeb/CSS/StyleProperties.h>
29#include <LibWeb/CSS/StyleValue.h>
30#include <LibWeb/DOM/HTMLBlinkElement.h>
31#include <LibWeb/Layout/LayoutNode.h>
32
33namespace Web {
34
35HTMLBlinkElement::HTMLBlinkElement(Document& document, const FlyString& tag_name)
36 : HTMLElement(document, tag_name)
37 , m_timer(Core::Timer::construct())
38{
39 m_timer->set_interval(500);
40 m_timer->on_timeout = [this] { blink(); };
41 m_timer->start();
42}
43
44HTMLBlinkElement::~HTMLBlinkElement()
45{
46}
47
48void HTMLBlinkElement::blink()
49{
50 if (!layout_node())
51 return;
52
53 layout_node()->set_visible(!layout_node()->is_visible());
54 layout_node()->set_needs_display();
55}
56
57}