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Issue #3050 - Map scrollbar-width to an element attribute.

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By mapping this to an attribute, this allows browser themes to respond to
the various available scrollbar width settings in CSS.
This commit is contained in:
Moonchild 2022-01-10 19:51:48 +00:00 • committed by roytam1
commit 4bdd388989
2 changed files with 24 additions and 0 deletions
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23
layout/generic/nsGfxScrollFrame.cpp
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@ -4457,6 +4457,7 @@ ScrollFrameHelper::CreateAnonymousContent(
kNameSpaceID_XUL,
nsIDOMNode::ELEMENT_NODE);
NS_ENSURE_TRUE(nodeInfo, NS_ERROR_OUT_OF_MEMORY);
StyleScrollbarWidth scrollWidth = mOuter->StyleUserInterface()->mScrollbarWidth;
if (canHaveHorizontal) {
RefPtr<NodeInfo> ni = nodeInfo;
@ -4473,6 +4474,17 @@ ScrollFrameHelper::CreateAnonymousContent(
NS_LITERAL_STRING("horizontal"), false);
mHScrollbarContent->SetAttr(kNameSpaceID_None, nsGkAtoms::clickthrough,
NS_LITERAL_STRING("always"), false);
// Map scrollbar-width to an attribute for browser themes.
if (scrollWidth == StyleScrollbarWidth::None) {
mHScrollbarContent->SetAttr(kNameSpaceID_None, nsGkAtoms::scrollbarwidth,
NS_LITERAL_STRING("none"), false);
} else if (scrollWidth == StyleScrollbarWidth::Thin) {
mHScrollbarContent->SetAttr(kNameSpaceID_None, nsGkAtoms::scrollbarwidth,
NS_LITERAL_STRING("thin"), false);
} else {
mHScrollbarContent->SetAttr(kNameSpaceID_None, nsGkAtoms::scrollbarwidth,
NS_LITERAL_STRING("auto"), false);
}
if (mIsRoot) {
mHScrollbarContent->SetAttr(kNameSpaceID_None, nsGkAtoms::root_,
NS_LITERAL_STRING("true"), false);
@ -4496,6 +4508,17 @@ ScrollFrameHelper::CreateAnonymousContent(
NS_LITERAL_STRING("vertical"), false);
mVScrollbarContent->SetAttr(kNameSpaceID_None, nsGkAtoms::clickthrough,
NS_LITERAL_STRING("always"), false);
// Map scrollbar-width to an attribute for browser themes.
if (scrollWidth == StyleScrollbarWidth::None) {
mVScrollbarContent->SetAttr(kNameSpaceID_None, nsGkAtoms::scrollbarwidth,
NS_LITERAL_STRING("none"), false);
} else if (scrollWidth == StyleScrollbarWidth::Thin) {
mVScrollbarContent->SetAttr(kNameSpaceID_None, nsGkAtoms::scrollbarwidth,
NS_LITERAL_STRING("thin"), false);
} else {
mVScrollbarContent->SetAttr(kNameSpaceID_None, nsGkAtoms::scrollbarwidth,
NS_LITERAL_STRING("auto"), false);
}
if (mIsRoot) {
mVScrollbarContent->SetAttr(kNameSpaceID_None, nsGkAtoms::root_,
NS_LITERAL_STRING("true"), false);