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https://github.com/RGBCube/serenity
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fdbad6284c
Just in time for Serenity's 1st birthday, here is the <blink> element! This patch adds a bunch of different mechanisms to enable partial repaints of the layout tree (LayoutNode::set_needs_display())) It also adds LayoutNode::is_visible(), which can be toggled to prevent a LayoutNode from rendering anything (it still takes up space though.)
27 lines
666 B
C++
27 lines
666 B
C++
#include <LibCore/CTimer.h>
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#include <LibHTML/CSS/StyleProperties.h>
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#include <LibHTML/CSS/StyleValue.h>
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#include <LibHTML/DOM/HTMLBlinkElement.h>
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#include <LibHTML/Layout/LayoutNode.h>
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HTMLBlinkElement::HTMLBlinkElement(Document& document, const String& tag_name)
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: HTMLElement(document, tag_name)
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, m_timer(CTimer::construct())
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{
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m_timer->set_interval(500);
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m_timer->on_timeout = [this] { blink(); };
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m_timer->start();
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}
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HTMLBlinkElement::~HTMLBlinkElement()
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{
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}
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void HTMLBlinkElement::blink()
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{
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if (!layout_node())
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return;
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layout_node()->set_visible(!layout_node()->is_visible());
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layout_node()->set_needs_display();
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}
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