mirror of
https://github.com/servo/servo.git
synced 2025-08-03 12:40:06 +01:00
Auto merge of #11377 - servo:style-attr-ser-rebase, r=SimonSapin
Update style attributes on CSSStyleDeclaration changes Rebase of #9410. Fixes #9410, fixes #9307. <!-- Reviewable:start --> --- This change is [<img src="https://reviewable.io/review_button.svg" height="35" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/11377) <!-- Reviewable:end -->
This commit is contained in:
commit
52f17a8814
5 changed files with 554 additions and 116 deletions
|
@ -173,13 +173,18 @@ impl Attr {
|
|||
pub fn set_value(&self, mut value: AttrValue, owner: &Element) {
|
||||
assert!(Some(owner) == self.owner().r());
|
||||
owner.will_mutate_attr();
|
||||
mem::swap(&mut *self.value.borrow_mut(), &mut value);
|
||||
self.swap_value(&mut value);
|
||||
if self.identifier.namespace == ns!() {
|
||||
vtable_for(owner.upcast())
|
||||
.attribute_mutated(self, AttributeMutation::Set(Some(&value)));
|
||||
}
|
||||
}
|
||||
|
||||
/// Used to swap the attribute's value without triggering mutation events
|
||||
pub fn swap_value(&self, value: &mut AttrValue) {
|
||||
mem::swap(&mut *self.value.borrow_mut(), value);
|
||||
}
|
||||
|
||||
pub fn identifier(&self) -> &AttrIdentifier {
|
||||
&self.identifier
|
||||
}
|
||||
|
|
|
@ -13,14 +13,13 @@ use dom::element::{Element, StylePriority};
|
|||
use dom::node::{Node, NodeDamage, window_from_node};
|
||||
use dom::window::Window;
|
||||
use std::ascii::AsciiExt;
|
||||
use std::borrow::ToOwned;
|
||||
use std::cell::Ref;
|
||||
use std::slice;
|
||||
use string_cache::Atom;
|
||||
use style::parser::ParserContextExtraData;
|
||||
use style::properties::{PropertyDeclaration, Shorthand};
|
||||
use style::properties::{is_supported_property, parse_one_declaration};
|
||||
use style::selector_impl::PseudoElement;
|
||||
use util::str::str_join;
|
||||
|
||||
// http://dev.w3.org/csswg/cssom/#the-cssstyledeclaration-interface
|
||||
#[dom_struct]
|
||||
|
@ -50,29 +49,6 @@ macro_rules! css_properties(
|
|||
);
|
||||
);
|
||||
|
||||
fn serialize_shorthand(shorthand: Shorthand, declarations: &[Ref<PropertyDeclaration>]) -> String {
|
||||
// https://drafts.csswg.org/css-variables/#variables-in-shorthands
|
||||
if let Some(css) = declarations[0].with_variables_from_shorthand(shorthand) {
|
||||
if declarations[1..]
|
||||
.iter()
|
||||
.all(|d| d.with_variables_from_shorthand(shorthand) == Some(css)) {
|
||||
css.to_owned()
|
||||
} else {
|
||||
String::new()
|
||||
}
|
||||
} else {
|
||||
if declarations.iter().any(|d| d.with_variables()) {
|
||||
String::new()
|
||||
} else {
|
||||
let str_iter = declarations.iter().map(|d| d.value());
|
||||
// FIXME: this needs property-specific code, which probably should be in style/
|
||||
// "as appropriate according to the grammar of shorthand "
|
||||
// https://drafts.csswg.org/cssom/#serialize-a-css-value
|
||||
str_join(str_iter, " ")
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl CSSStyleDeclaration {
|
||||
pub fn new_inherited(owner: &Element,
|
||||
pseudo: Option<PseudoElement>,
|
||||
|
@ -172,7 +148,19 @@ impl CSSStyleDeclarationMethods for CSSStyleDeclaration {
|
|||
}
|
||||
|
||||
// Step 2.3
|
||||
return DOMString::from(serialize_shorthand(shorthand, &list));
|
||||
// Work around closures not being Clone
|
||||
#[derive(Clone)]
|
||||
struct Map<'a, 'b: 'a>(slice::Iter<'a, Ref<'b, PropertyDeclaration>>);
|
||||
impl<'a, 'b> Iterator for Map<'a, 'b> {
|
||||
type Item = &'a PropertyDeclaration;
|
||||
fn next(&mut self) -> Option<Self::Item> {
|
||||
self.0.next().map(|r| &**r)
|
||||
}
|
||||
}
|
||||
|
||||
// TODO: important is hardcoded to false because method does not implement it yet
|
||||
let serialized_value = shorthand.serialize_shorthand_value_to_string(Map(list.iter()), false);
|
||||
return DOMString::from(serialized_value);
|
||||
}
|
||||
|
||||
// Step 3 & 4
|
||||
|
@ -255,10 +243,8 @@ impl CSSStyleDeclarationMethods for CSSStyleDeclaration {
|
|||
let element = self.owner.upcast::<Element>();
|
||||
|
||||
// Step 8
|
||||
for decl in declarations {
|
||||
// Step 9
|
||||
element.update_inline_style(decl, priority);
|
||||
}
|
||||
// Step 9
|
||||
element.update_inline_style(declarations, priority);
|
||||
|
||||
let node = element.upcast::<Node>();
|
||||
node.dirty(NodeDamage::NodeStyleDamaged);
|
||||
|
@ -317,20 +303,20 @@ impl CSSStyleDeclarationMethods for CSSStyleDeclaration {
|
|||
// Step 3
|
||||
let value = self.GetPropertyValue(property.clone());
|
||||
|
||||
let elem = self.owner.upcast::<Element>();
|
||||
let element = self.owner.upcast::<Element>();
|
||||
|
||||
match Shorthand::from_name(&property) {
|
||||
// Step 4
|
||||
Some(shorthand) => {
|
||||
for longhand in shorthand.longhands() {
|
||||
elem.remove_inline_style_property(longhand)
|
||||
element.remove_inline_style_property(longhand)
|
||||
}
|
||||
}
|
||||
// Step 5
|
||||
None => elem.remove_inline_style_property(&property),
|
||||
None => element.remove_inline_style_property(&property),
|
||||
}
|
||||
|
||||
let node = elem.upcast::<Node>();
|
||||
let node = element.upcast::<Node>();
|
||||
node.dirty(NodeDamage::NodeStyleDamaged);
|
||||
|
||||
// Step 6
|
||||
|
|
|
@ -5,7 +5,7 @@
|
|||
//! Element nodes.
|
||||
|
||||
use app_units::Au;
|
||||
use cssparser::Color;
|
||||
use cssparser::{Color, ToCss};
|
||||
use devtools_traits::AttrInfo;
|
||||
use dom::activation::Activatable;
|
||||
use dom::attr::AttrValue;
|
||||
|
@ -698,89 +698,145 @@ impl Element {
|
|||
}
|
||||
}
|
||||
|
||||
pub fn remove_inline_style_property(&self, property: &str) {
|
||||
let mut inline_declarations = self.style_attribute.borrow_mut();
|
||||
if let &mut Some(ref mut declarations) = &mut *inline_declarations {
|
||||
let index = declarations.normal
|
||||
.iter()
|
||||
.position(|decl| decl.matches(property));
|
||||
if let Some(index) = index {
|
||||
Arc::make_mut(&mut declarations.normal).remove(index);
|
||||
return;
|
||||
}
|
||||
// this sync method is called upon modification of the style_attribute property,
|
||||
// therefore, it should not trigger subsequent mutation events
|
||||
fn sync_property_with_attrs_style(&self) {
|
||||
let style_str = if let &Some(ref declarations) = &*self.style_attribute().borrow() {
|
||||
declarations.to_css_string()
|
||||
} else {
|
||||
String::new()
|
||||
};
|
||||
|
||||
let index = declarations.important
|
||||
.iter()
|
||||
.position(|decl| decl.matches(property));
|
||||
if let Some(index) = index {
|
||||
Arc::make_mut(&mut declarations.important).remove(index);
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
let mut new_style = AttrValue::String(style_str);
|
||||
|
||||
pub fn update_inline_style(&self,
|
||||
property_decl: PropertyDeclaration,
|
||||
style_priority: StylePriority) {
|
||||
let mut inline_declarations = self.style_attribute().borrow_mut();
|
||||
if let &mut Some(ref mut declarations) = &mut *inline_declarations {
|
||||
let existing_declarations = if style_priority == StylePriority::Important {
|
||||
&mut declarations.important
|
||||
} else {
|
||||
&mut declarations.normal
|
||||
};
|
||||
|
||||
// Usually, the reference count will be 1 here. But transitions could make it greater
|
||||
// than that.
|
||||
let existing_declarations = Arc::make_mut(existing_declarations);
|
||||
for declaration in &mut *existing_declarations {
|
||||
if declaration.name() == property_decl.name() {
|
||||
*declaration = property_decl;
|
||||
return;
|
||||
}
|
||||
}
|
||||
existing_declarations.push(property_decl);
|
||||
if let Some(style_attr) = self.attrs.borrow().iter().find(|a| a.name() == &atom!("style")) {
|
||||
style_attr.swap_value(&mut new_style);
|
||||
return;
|
||||
}
|
||||
|
||||
let (important, normal) = if style_priority == StylePriority::Important {
|
||||
(vec![property_decl], vec![])
|
||||
} else {
|
||||
(vec![], vec![property_decl])
|
||||
};
|
||||
// explicitly not calling the push_new_attribute convenience method
|
||||
// in order to avoid triggering mutation events
|
||||
let window = window_from_node(self);
|
||||
let attr = Attr::new(&window,
|
||||
atom!("style"),
|
||||
new_style,
|
||||
atom!("style"),
|
||||
ns!(),
|
||||
Some(atom!("style")),
|
||||
Some(self));
|
||||
|
||||
*inline_declarations = Some(PropertyDeclarationBlock {
|
||||
important: Arc::new(important),
|
||||
normal: Arc::new(normal),
|
||||
});
|
||||
assert!(attr.GetOwnerElement().r() == Some(self));
|
||||
self.attrs.borrow_mut().push(JS::from_ref(&attr));
|
||||
}
|
||||
|
||||
pub fn remove_inline_style_property(&self, property: &str) {
|
||||
fn remove(element: &Element, property: &str) {
|
||||
let mut inline_declarations = element.style_attribute.borrow_mut();
|
||||
if let &mut Some(ref mut declarations) = &mut *inline_declarations {
|
||||
let index = declarations.normal
|
||||
.iter()
|
||||
.position(|decl| decl.matches(property));
|
||||
if let Some(index) = index {
|
||||
Arc::make_mut(&mut declarations.normal).remove(index);
|
||||
return;
|
||||
}
|
||||
|
||||
let index = declarations.important
|
||||
.iter()
|
||||
.position(|decl| decl.matches(property));
|
||||
if let Some(index) = index {
|
||||
Arc::make_mut(&mut declarations.important).remove(index);
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
remove(self, property);
|
||||
self.sync_property_with_attrs_style();
|
||||
}
|
||||
|
||||
pub fn update_inline_style(&self,
|
||||
declarations: Vec<PropertyDeclaration>,
|
||||
style_priority: StylePriority) {
|
||||
|
||||
fn update(element: &Element, mut declarations: Vec<PropertyDeclaration>, style_priority: StylePriority) {
|
||||
let mut inline_declarations = element.style_attribute().borrow_mut();
|
||||
if let &mut Some(ref mut existing_declarations) = &mut *inline_declarations {
|
||||
let existing_declarations = if style_priority == StylePriority::Important {
|
||||
&mut existing_declarations.important
|
||||
} else {
|
||||
&mut existing_declarations.normal
|
||||
};
|
||||
|
||||
// Usually, the reference count will be 1 here. But transitions could make it greater
|
||||
// than that.
|
||||
let existing_declarations = Arc::make_mut(existing_declarations);
|
||||
|
||||
while let Some(mut incoming_declaration) = declarations.pop() {
|
||||
let mut replaced = false;
|
||||
for existing_declaration in &mut *existing_declarations {
|
||||
if existing_declaration.name() == incoming_declaration.name() {
|
||||
mem::swap(existing_declaration, &mut incoming_declaration);
|
||||
replaced = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if !replaced {
|
||||
// inserting instead of pushing since the declarations are in reverse order
|
||||
existing_declarations.insert(0, incoming_declaration);
|
||||
}
|
||||
}
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
let (important, normal) = if style_priority == StylePriority::Important {
|
||||
(declarations, vec![])
|
||||
} else {
|
||||
(vec![], declarations)
|
||||
};
|
||||
|
||||
*inline_declarations = Some(PropertyDeclarationBlock {
|
||||
important: Arc::new(important),
|
||||
normal: Arc::new(normal),
|
||||
});
|
||||
}
|
||||
|
||||
update(self, declarations, style_priority);
|
||||
self.sync_property_with_attrs_style();
|
||||
}
|
||||
|
||||
pub fn set_inline_style_property_priority(&self,
|
||||
properties: &[&str],
|
||||
style_priority: StylePriority) {
|
||||
let mut inline_declarations = self.style_attribute().borrow_mut();
|
||||
if let &mut Some(ref mut declarations) = &mut *inline_declarations {
|
||||
let (from, to) = if style_priority == StylePriority::Important {
|
||||
(&mut declarations.normal, &mut declarations.important)
|
||||
} else {
|
||||
(&mut declarations.important, &mut declarations.normal)
|
||||
};
|
||||
{
|
||||
let mut inline_declarations = self.style_attribute().borrow_mut();
|
||||
if let &mut Some(ref mut declarations) = &mut *inline_declarations {
|
||||
let (from, to) = if style_priority == StylePriority::Important {
|
||||
(&mut declarations.normal, &mut declarations.important)
|
||||
} else {
|
||||
(&mut declarations.important, &mut declarations.normal)
|
||||
};
|
||||
|
||||
// Usually, the reference counts of `from` and `to` will be 1 here. But transitions
|
||||
// could make them greater than that.
|
||||
let from = Arc::make_mut(from);
|
||||
let to = Arc::make_mut(to);
|
||||
let mut new_from = Vec::new();
|
||||
for declaration in from.drain(..) {
|
||||
let name = declaration.name();
|
||||
if properties.iter().any(|p| name == **p) {
|
||||
to.push(declaration)
|
||||
} else {
|
||||
new_from.push(declaration)
|
||||
}
|
||||
// Usually, the reference counts of `from` and `to` will be 1 here. But transitions
|
||||
// could make them greater than that.
|
||||
let from = Arc::make_mut(from);
|
||||
let to = Arc::make_mut(to);
|
||||
let mut new_from = Vec::new();
|
||||
for declaration in from.drain(..) {
|
||||
let name = declaration.name();
|
||||
if properties.iter().any(|p| name == **p) {
|
||||
to.push(declaration)
|
||||
} else {
|
||||
new_from.push(declaration)
|
||||
}
|
||||
}
|
||||
mem::replace(from, new_from);
|
||||
}
|
||||
mem::replace(from, new_from);
|
||||
}
|
||||
|
||||
self.sync_property_with_attrs_style();
|
||||
}
|
||||
|
||||
pub fn get_inline_style_declaration(&self,
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue