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LibWeb: Support two-value background-repeat

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The background-repeat value may be specified as either one- or two-value
identifiers (to be interpreted as horizontal and vertical repeat). This
adds two pseudo-properties, background-repeat-x and background-repeat-y,
to handle this. One-value identifiers are mapped to two-value in
accordance with the spec.
This commit is contained in:
Timothy Flynn 2021-04-05 12:05:35 -04:00 • committed by Andreas Kling
parent 0794d879f3
commit 5de0e0068c
12 changed files with 152 additions and 35 deletions
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26
Userland/Libraries/LibWeb/Layout/Box.cpp
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@ -50,7 +50,7 @@ void Box::paint(PaintContext& context, PaintPhase phase)
context.painter().fill_rect(background_rect, computed_values().background_color());
if (background_image() && background_image()->bitmap()) {
paint_background_image(context, *background_image()->bitmap(), computed_values().background_repeat(), move(background_rect));
paint_background_image(context, *background_image()->bitmap(), computed_values().background_repeat_x(), computed_values().background_repeat_y(), move(background_rect));
}
}
@ -87,22 +87,30 @@ void Box::paint(PaintContext& context, PaintPhase phase)
void Box::paint_background_image(
PaintContext& context,
const Gfx::Bitmap& background_image,
CSS::Repeat background_repeat,
CSS::Repeat background_repeat_x,
CSS::Repeat background_repeat_y,
Gfx::IntRect background_rect)
{
switch (background_repeat) {
switch (background_repeat_x) {
case CSS::Repeat::Round:
case CSS::Repeat::Space:
// FIXME: Support 'round' and 'space'. Fall through to 'repeat' since that most closely resembles these.
case CSS::Repeat::Repeat:
// The background rect is already sized to align with 'repeat'.
break;
case CSS::Repeat::RepeatX:
background_rect.set_height(background_image.height());
break;
case CSS::Repeat::RepeatY:
case CSS::Repeat::NoRepeat:
background_rect.set_width(background_image.width());
break;
}
switch (background_repeat_y) {
case CSS::Repeat::Round:
case CSS::Repeat::Space:
// FIXME: Support 'round' and 'space'. Fall through to 'repeat' since that most closely resembles these.
case CSS::Repeat::Repeat:
// The background rect is already sized to align with 'repeat'.
break;
case CSS::Repeat::NoRepeat:
default: // FIXME: Support 'round' and 'square'
background_rect.set_width(background_image.width());
background_rect.set_height(background_image.height());
break;
}