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vaev-driver: Handle correctly HTML/BODY backgrounds. #34
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| module; | ||
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| #include <karm-image/loader.h> | ||
| #include <karm-text/loader.h> | ||
| #include <karm-text/prose.h> | ||
| #include <vaev-dom/document.h> | ||
| #include <vaev-style/computer.h> | ||
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| export module Vaev.Layout:backgroundCanvas; | ||
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| import :values; | ||
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| namespace Vaev::Layout { | ||
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| // NOTE This handle only Gfx::Colors but there's a lot more to handle eg Images, Gradients, etc. | ||
| Gfx::Color _colorToGfx(Color color) { | ||
| if (auto isRes = color.is<Gfx::Color>()) { | ||
| return *isRes; | ||
| } else { | ||
| logWarn("color was not a Gfx color"); | ||
| return Gfx::WHITE; | ||
| } | ||
| } | ||
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| void _patchBackgrounds(MutSlice<Layout::Box>& children) { | ||
| for (auto& child : children) { | ||
| if (child.origin->tagName == Html::BODY) { | ||
| child.style->backgrounds.cow().color = Gfx::ALPHA; | ||
| } | ||
| } | ||
| } | ||
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| export Gfx::Color fixupBackgrounds(Style::Computer& c, Gc::Ref<Dom::Document> doc, Layout::Tree& tree) { | ||
| auto el = doc->documentElement(); | ||
| if (!el) { | ||
| return Gfx::WHITE; | ||
| } | ||
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| auto style = c.computeFor(Style::Computed::initial(), *el); | ||
| if (style->backgrounds->color != Gfx::ALPHA) { | ||
| tree.root.style->backgrounds.cow().color = Gfx::ALPHA; | ||
| return _colorToGfx(style->backgrounds->color); | ||
| } | ||
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| for (auto child = el->firstChild(); child; child = child->nextSibling()) { | ||
| if (auto isRes = child->is<Dom::Element>()) { | ||
| if (isRes->tagName != Html::BODY) { | ||
| continue; | ||
| } | ||
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| auto childStyle = c.computeFor(*style, *isRes); | ||
| if (childStyle->backgrounds->color != Gfx::ALPHA) { | ||
| auto children = tree.root.children(); | ||
| _patchBackgrounds(children); | ||
| return _colorToGfx(childStyle->backgrounds->color); | ||
| } else { | ||
| return Gfx::WHITE; | ||
| } | ||
| } | ||
| } | ||
|
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| return Gfx::WHITE; | ||
| } | ||
|
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| } // namespace Vaev::Layout |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,109 @@ | ||
| <test name="html-body-bg"> | ||
| <container> | ||
| <html lang="en" xmlns="http://www.w3.org/1999/xhtml"> | ||
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| <head> | ||
| <style> | ||
| body { | ||
| height: 100svh; | ||
| width: 100vw; | ||
| margin: 0; | ||
| } | ||
|
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| html { | ||
| height: 100svh; | ||
| width: 100vw; | ||
| } | ||
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| #ref { | ||
| height: 100svh; | ||
| width: 100vw; | ||
| background-color: #b98af1; | ||
| } | ||
| </style> | ||
| </head> | ||
|
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| <body> | ||
| <slot/> | ||
| </body> | ||
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| </html> | ||
| </container> | ||
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| <rendering> | ||
| <div id="ref" style="height: 100svh;width: 100vw;background-color: #b98af1;"></div> | ||
| </rendering> | ||
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| <rendering> | ||
| <style> | ||
| html { | ||
| background-color: #b98af1; | ||
| } | ||
| </style> | ||
| </rendering> | ||
|
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| <rendering> | ||
| <style> | ||
| body { | ||
| background-color: #b98af1; | ||
| } | ||
| </style> | ||
| </rendering> | ||
|
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| <rendering> | ||
| <style> | ||
| html { | ||
| background-color: #b98af1; | ||
| } | ||
|
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| body { | ||
| background-color: #ff2b8d; | ||
| display: none; | ||
| } | ||
| </style> | ||
| </rendering> | ||
| </test> | ||
| <test name="html-body-bg-delete-bg"> | ||
| <container> | ||
| <html lang="en" xmlns="http://www.w3.org/1999/xhtml"> | ||
|
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| <head> | ||
| <style> | ||
| body { | ||
| height: 100svh; | ||
| width: 100vw; | ||
| margin: 0; | ||
| } | ||
|
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| html { | ||
| height: 100svh; | ||
| width: 100vw; | ||
| } | ||
|
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| #ref { | ||
| height: 100svh; | ||
| width: 100vw; | ||
| background-color: rgba(185, 138, 241, 0.4); | ||
| } | ||
| </style> | ||
| </head> | ||
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| <body> | ||
| <slot/> | ||
| </body> | ||
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| </html> | ||
| </container> | ||
|
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| <rendering> | ||
| <div id="ref" style="height: 100svh;width: 100vw"></div> | ||
| </rendering> | ||
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| <rendering> | ||
| <style> | ||
| body { | ||
| background-color: rgba(185, 138, 241, 0.4); | ||
| } | ||
| </style> | ||
| </rendering> | ||
| </test> |
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