Struct style::properties::ComputedValues

pub struct ComputedValues { /* fields omitted */ }

The struct that Servo uses to represent computed values.

This struct contains an immutable atomically-reference-counted pointer to every kind of style struct.

When needed, the structs may be copied in order to get mutated.

Methods

impl ComputedValues

pub fn is_style_if_visited(&self) -> bool

Whether we're a visited style.

pub fn rules(&self) -> &StrongRuleNode

Gets a reference to the rule node. Panic if no rule node exists.

pub fn visited_style(&self) -> Option<&ComputedValues>

Returns the visited style, if any.

pub fn visited_rules(&self) -> Option<&StrongRuleNode>

Returns the visited rules, if applicable.

pub fn is_in_display_none_subtree(&self) -> bool

Returns whether we're in a display: none subtree.

pub fn custom_properties(&self) -> Option<&Arc<CustomPropertiesMap>>

Gets a reference to the custom properties map (if one exists).

impl ComputedValues

pub fn new(
    _: &Device,
    _: Option<&ComputedValues>,
    _: Option<&PseudoElement>,
    custom_properties: Option<Arc<CustomPropertiesMap>>,
    writing_mode: WritingMode,
    flags: ComputedValueFlags,
    rules: Option<StrongRuleNode>,
    visited_style: Option<Arc<ComputedValues>>,
    background: Arc<Background>,
    border: Arc<Border>,
    box_: Arc<Box>,
    color: Arc<Color>,
    column: Arc<Column>,
    counters: Arc<Counters>,
    effects: Arc<Effects>,
    font: Arc<Font>,
    inheritedbox: Arc<InheritedBox>,
    inheritedtable: Arc<InheritedTable>,
    inheritedtext: Arc<InheritedText>,
    list: Arc<List>,
    margin: Arc<Margin>,
    outline: Arc<Outline>,
    padding: Arc<Padding>,
    pointing: Arc<Pointing>,
    position: Arc<Position>,
    table: Arc<Table>,
    text: Arc<Text>
) -> Arc<Self>

Create a new refcounted ComputedValues

Important traits for &'a mut W

impl<'a, W> Write for &'a mut W where
    W: Write + ?Sized, impl<'a, I> Iterator for &'a mut I where
    I: Iterator + ?Sized,  type Item = <I as Iterator>::Item;

pub fn initial_values() -> &'static Self

Get the initial computed values.

Methods from Deref<Target = ComputedValuesInner>

pub fn clone_background(&self) -> Arc<Background>

Clone the Background struct.

pub fn get_background(&self) -> &Background

Get a immutable reference to the Background struct.

pub fn background_arc(&self) -> &Arc<Background>

Gets an immutable reference to the refcounted value that wraps Background.

pub fn mutate_background(&mut self) -> &mut Background

Get a mutable reference to the Background struct.

pub fn clone_border(&self) -> Arc<Border>

Clone the Border struct.

pub fn get_border(&self) -> &Border

Get a immutable reference to the Border struct.

pub fn border_arc(&self) -> &Arc<Border>

Gets an immutable reference to the refcounted value that wraps Border.

pub fn mutate_border(&mut self) -> &mut Border

Get a mutable reference to the Border struct.

pub fn clone_box(&self) -> Arc<Box>

Clone the Box struct.

pub fn get_box(&self) -> &Box

Get a immutable reference to the Box struct.

pub fn box_arc(&self) -> &Arc<Box>

Gets an immutable reference to the refcounted value that wraps Box.

pub fn mutate_box(&mut self) -> &mut Box

Get a mutable reference to the Box struct.

pub fn clone_color(&self) -> Arc<Color>

Clone the Color struct.

pub fn get_color(&self) -> &Color

Get a immutable reference to the Color struct.

pub fn color_arc(&self) -> &Arc<Color>

Gets an immutable reference to the refcounted value that wraps Color.

pub fn mutate_color(&mut self) -> &mut Color

Get a mutable reference to the Color struct.

pub fn clone_column(&self) -> Arc<Column>

Clone the Column struct.

pub fn get_column(&self) -> &Column

Get a immutable reference to the Column struct.

pub fn column_arc(&self) -> &Arc<Column>

Gets an immutable reference to the refcounted value that wraps Column.

pub fn mutate_column(&mut self) -> &mut Column

Get a mutable reference to the Column struct.

pub fn clone_counters(&self) -> Arc<Counters>

Clone the Counters struct.

pub fn get_counters(&self) -> &Counters

Get a immutable reference to the Counters struct.

pub fn counters_arc(&self) -> &Arc<Counters>

Gets an immutable reference to the refcounted value that wraps Counters.

pub fn mutate_counters(&mut self) -> &mut Counters

Get a mutable reference to the Counters struct.

pub fn clone_effects(&self) -> Arc<Effects>

Clone the Effects struct.

pub fn get_effects(&self) -> &Effects

Get a immutable reference to the Effects struct.

pub fn effects_arc(&self) -> &Arc<Effects>

Gets an immutable reference to the refcounted value that wraps Effects.

pub fn mutate_effects(&mut self) -> &mut Effects

Get a mutable reference to the Effects struct.

pub fn clone_font(&self) -> Arc<Font>

Clone the Font struct.

pub fn get_font(&self) -> &Font

Get a immutable reference to the Font struct.

pub fn font_arc(&self) -> &Arc<Font>

Gets an immutable reference to the refcounted value that wraps Font.

pub fn mutate_font(&mut self) -> &mut Font

Get a mutable reference to the Font struct.

pub fn clone_inheritedbox(&self) -> Arc<InheritedBox>

Clone the InheritedBox struct.

pub fn get_inheritedbox(&self) -> &InheritedBox

Get a immutable reference to the InheritedBox struct.

pub fn inheritedbox_arc(&self) -> &Arc<InheritedBox>

Gets an immutable reference to the refcounted value that wraps InheritedBox.

pub fn mutate_inheritedbox(&mut self) -> &mut InheritedBox

Get a mutable reference to the InheritedBox struct.

pub fn clone_inheritedtable(&self) -> Arc<InheritedTable>

Clone the InheritedTable struct.

pub fn get_inheritedtable(&self) -> &InheritedTable

Get a immutable reference to the InheritedTable struct.

pub fn inheritedtable_arc(&self) -> &Arc<InheritedTable>

Gets an immutable reference to the refcounted value that wraps InheritedTable.

pub fn mutate_inheritedtable(&mut self) -> &mut InheritedTable

Get a mutable reference to the InheritedTable struct.

pub fn clone_inheritedtext(&self) -> Arc<InheritedText>

Clone the InheritedText struct.

pub fn get_inheritedtext(&self) -> &InheritedText

Get a immutable reference to the InheritedText struct.

pub fn inheritedtext_arc(&self) -> &Arc<InheritedText>

Gets an immutable reference to the refcounted value that wraps InheritedText.

pub fn mutate_inheritedtext(&mut self) -> &mut InheritedText

Get a mutable reference to the InheritedText struct.

pub fn clone_list(&self) -> Arc<List>

Clone the List struct.

pub fn get_list(&self) -> &List

Get a immutable reference to the List struct.

pub fn list_arc(&self) -> &Arc<List>

Gets an immutable reference to the refcounted value that wraps List.

pub fn mutate_list(&mut self) -> &mut List

Get a mutable reference to the List struct.

pub fn clone_margin(&self) -> Arc<Margin>

Clone the Margin struct.

pub fn get_margin(&self) -> &Margin

Get a immutable reference to the Margin struct.

pub fn margin_arc(&self) -> &Arc<Margin>

Gets an immutable reference to the refcounted value that wraps Margin.

pub fn mutate_margin(&mut self) -> &mut Margin

Get a mutable reference to the Margin struct.

pub fn clone_outline(&self) -> Arc<Outline>

Clone the Outline struct.

pub fn get_outline(&self) -> &Outline

Get a immutable reference to the Outline struct.

pub fn outline_arc(&self) -> &Arc<Outline>

Gets an immutable reference to the refcounted value that wraps Outline.

pub fn mutate_outline(&mut self) -> &mut Outline

Get a mutable reference to the Outline struct.

pub fn clone_padding(&self) -> Arc<Padding>

Clone the Padding struct.

pub fn get_padding(&self) -> &Padding

Get a immutable reference to the Padding struct.

pub fn padding_arc(&self) -> &Arc<Padding>

Gets an immutable reference to the refcounted value that wraps Padding.

pub fn mutate_padding(&mut self) -> &mut Padding

Get a mutable reference to the Padding struct.

pub fn clone_pointing(&self) -> Arc<Pointing>

Clone the Pointing struct.

pub fn get_pointing(&self) -> &Pointing

Get a immutable reference to the Pointing struct.

pub fn pointing_arc(&self) -> &Arc<Pointing>

Gets an immutable reference to the refcounted value that wraps Pointing.

pub fn mutate_pointing(&mut self) -> &mut Pointing

Get a mutable reference to the Pointing struct.

pub fn clone_position(&self) -> Arc<Position>

Clone the Position struct.

pub fn get_position(&self) -> &Position

Get a immutable reference to the Position struct.

pub fn position_arc(&self) -> &Arc<Position>

Gets an immutable reference to the refcounted value that wraps Position.

pub fn mutate_position(&mut self) -> &mut Position

Get a mutable reference to the Position struct.

pub fn clone_table(&self) -> Arc<Table>

Clone the Table struct.

pub fn get_table(&self) -> &Table

Get a immutable reference to the Table struct.

pub fn table_arc(&self) -> &Arc<Table>

Gets an immutable reference to the refcounted value that wraps Table.

pub fn mutate_table(&mut self) -> &mut Table

Get a mutable reference to the Table struct.

pub fn clone_text(&self) -> Arc<Text>

Clone the Text struct.

pub fn get_text(&self) -> &Text

Get a immutable reference to the Text struct.

pub fn text_arc(&self) -> &Arc<Text>

Gets an immutable reference to the refcounted value that wraps Text.

pub fn mutate_text(&mut self) -> &mut Text

Get a mutable reference to the Text struct.

pub fn rules(&self) -> &StrongRuleNode

Gets a reference to the rule node. Panic if no rule node exists.

pub fn has_moz_binding(&self) -> bool

Whether this style has a -moz-binding value. This is always false for Servo for obvious reasons.

pub fn clone_visited_style(&self) -> Option<Arc<ComputedValues>>

Clone the visited style. Used for inheriting parent styles in StyleBuilder::for_derived_style.

pub fn is_display_contents(&self) -> bool

Returns whether this style's display value is equal to contents.

Since this isn't supported in Servo, this is always false for Servo.

pub fn ineffective_content_property(&self) -> bool

Returns whether the "content" property for the given style is completely ineffective, and would yield an empty ::before or ::after pseudo-element.

pub fn is_multicol(&self) -> bool

Whether the current style is multicolumn.

pub fn resolve_color(&self, color: Color) -> RGBA

Resolves the currentColor keyword.

Any color value from computed values (except for the 'color' property itself) should go through this method.

Usage example: let top_color = style.resolve_color(style.Border.border_top_color);

pub fn content_inline_size(&self) -> LengthOrPercentageOrAuto

Get the logical computed inline size.

pub fn content_block_size(&self) -> LengthOrPercentageOrAuto

Get the logical computed block size.

pub fn min_inline_size(&self) -> LengthOrPercentage

Get the logical computed min inline size.

pub fn min_block_size(&self) -> LengthOrPercentage

Get the logical computed min block size.

pub fn max_inline_size(&self) -> LengthOrPercentageOrNone

Get the logical computed max inline size.

pub fn max_block_size(&self) -> LengthOrPercentageOrNone

Get the logical computed max block size.

pub fn logical_padding(&self) -> LogicalMargin<LengthOrPercentage>

Get the logical computed padding for this writing mode.

pub fn border_width_for_writing_mode(
    &self,
    writing_mode: WritingMode
) -> LogicalMargin<Au>

Get the logical border width

pub fn logical_border_width(&self) -> LogicalMargin<Au>

Gets the logical computed border widths for this style.

pub fn logical_margin(&self) -> LogicalMargin<LengthOrPercentageOrAuto>

Gets the logical computed margin from this style.

pub fn logical_position(&self) -> LogicalMargin<LengthOrPercentageOrAuto>

Gets the logical position from this style.

pub fn overrides_transform_style(&self) -> bool

Return true if the effects force the transform style to be Flat

pub fn get_used_transform_style(&self) -> T

https://drafts.csswg.org/css-transforms/#grouping-property-values

pub fn transform_requires_layer(&self) -> bool

Whether given this transform value, the compositor would require a layer.

pub fn computed_value_to_string(
    &self,
    property: PropertyDeclarationId
) -> String

Serializes the computed value of this property as a string.

Trait Implementations

impl Clone for ComputedValues

fn clone(&self) -> ComputedValues

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ComputedValues

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Deref for ComputedValues

type Target = ComputedValuesInner

The resulting type after dereferencing.

fn deref(&self) -> &ComputedValuesInner

Dereferences the value.

impl DerefMut for ComputedValues

fn deref_mut(&mut self) -> &mut ComputedValuesInner

Mutably dereferences the value.