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LibWeb: Support animated backgrounds

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This commit is contained in:
Moustafa Raafat 2022-10-30 15:43:42 +00:00 • committed by Andrew Kaster
parent bfdb30c74a
commit 6ff9a88c3b
3 changed files with 54 additions and 14 deletions
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49
Userland/Libraries/LibWeb/CSS/StyleValue.cpp
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@ -16,6 +16,7 @@
#include <LibWeb/Loader/ResourceLoader.h>
#include <LibWeb/Page/Page.h>
#include <LibWeb/Painting/GradientPainting.h>
#include <LibWeb/Platform/Timer.h>
namespace Web::CSS {
@ -1650,9 +1651,6 @@ ImageStyleValue::ImageStyleValue(AK::URL const& url)
void ImageStyleValue::load_any_resources(DOM::Document& document)
{
if (m_bitmap)
return;
if (resource())
return;
@ -1665,10 +1663,41 @@ void ImageStyleValue::resource_did_load()
{
if (!m_document)
return;
m_bitmap = resource()->bitmap();
// FIXME: Do less than a full repaint if possible?
if (m_document && m_document->browsing_context())
m_document->browsing_context()->set_needs_display();
if (resource()->is_animated() && resource()->frame_count() > 1) {
m_timer = Platform::Timer::create();
m_timer->set_interval(resource()->frame_duration(0));
m_timer->on_timeout = [this] { animate(); };
m_timer->start();
}
}
void ImageStyleValue::animate()
{
m_current_frame_index = (m_current_frame_index + 1) % resource()->frame_count();
auto current_frame_duration = resource()->frame_duration(m_current_frame_index);
if (current_frame_duration != m_timer->interval())
m_timer->restart(current_frame_duration);
if (m_current_frame_index == resource()->frame_count() - 1) {
++m_loops_completed;
if (m_loops_completed > 0 && m_loops_completed == resource()->loop_count())
m_timer->stop();
}
if (on_animate)
on_animate();
}
Gfx::Bitmap const* ImageStyleValue::bitmap(size_t frame_index) const
{
if (!resource())
return nullptr;
return resource()->bitmap(frame_index);
}
String ImageStyleValue::to_string() const
@ -1685,22 +1714,22 @@ bool ImageStyleValue::equals(StyleValue const& other) const
Optional<int> ImageStyleValue::natural_width() const
{
if (m_bitmap)
return m_bitmap->width();
if (resource())
return bitmap(0)->width();
return {};
}
Optional<int> ImageStyleValue::natural_height() const
{
if (m_bitmap)
return m_bitmap->height();
if (resource())
return bitmap(0)->height();
return {};
}
void ImageStyleValue::paint(PaintContext& context, Gfx::IntRect const& dest_rect, CSS::ImageRendering image_rendering) const
{
if (m_bitmap)
context.painter().draw_scaled_bitmap(dest_rect, *m_bitmap, m_bitmap->rect(), 1.0f, to_gfx_scaling_mode(image_rendering));
if (resource())
context.painter().draw_scaled_bitmap(dest_rect, *bitmap(m_current_frame_index), bitmap(0)->rect(), 1.0f, to_gfx_scaling_mode(image_rendering));
}
static void serialize_color_stop_list(StringBuilder& builder, auto const& color_stop_list)