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Update prefs API to return an Option<bool>.

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This allows for situations where there is no reasonable default
to apply for the pref value e.g. when we are just listing values
This commit is contained in:
James Graham 2015-09-04 15:21:35 +01:00
parent cc1eb3f741
commit a208379f46
7 changed files with 12 additions and 12 deletions
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8
components/style/properties.mako.rs
View file

@ -494,7 +494,7 @@ pub mod longhands {
% for value in values[:-1]:
"${value}" => {
% if value in experimental_values:
if !::util::prefs::get_pref("layout.${value}.enabled", false) {
if !::util::prefs::get_pref("layout.${value}.enabled").unwrap_or(false) {
return Err(())
}
% endif
@ -504,7 +504,7 @@ pub mod longhands {
% for value in values[-1:]:
"${value}" => {
% if value in experimental_values:
if !::util::prefs::get_pref("layout.${value}.enabled", false) {
if !::util::prefs::get_pref("layout.${value}.enabled".unwrap_or(false) {
return Err(())
}
% endif
@ -5796,7 +5796,7 @@ impl PropertyDeclaration {
% if property.derived_from is None:
"${property.name}" => {
% if property.experimental:
if !::util::prefs::get_pref("${property.experimental}", false) {
if !::util::prefs::get_pref("${property.experimental}").unwrap_or(false) {
return PropertyDeclarationParseResult::ExperimentalProperty
}
% endif
@ -5815,7 +5815,7 @@ impl PropertyDeclaration {
% for shorthand in SHORTHANDS:
"${shorthand.name}" => {
% if shorthand.experimental:
if !::util::prefs::get_pref("${shorthand.experimental}", false) {
if !::util::prefs::get_pref("${shorthand.experimental}").unwrap_or(false) {
return PropertyDeclarationParseResult::ExperimentalProperty
}
% endif

2
components/style/stylesheets.rs
View file

@ -429,7 +429,7 @@ impl<'a, 'b> AtRuleParser for NestedRuleParser<'a, 'b> {
Ok(AtRuleType::WithBlock(AtRulePrelude::FontFace))
},
"viewport" => {
if ::util::prefs::get_pref("layout.viewport.enabled", false) {
if ::util::prefs::get_pref("layout.viewport.enabled").unwrap_or(false) {
Ok(AtRuleType::WithBlock(AtRulePrelude::Viewport))
} else {
Err(())