Trait script_layout_interface::Layout

pub trait Layout {
    // Required methods
    fn handle_constellation_msg(&mut self, msg: LayoutControlMsg);
    fn handle_font_cache_msg(&mut self);
    fn device(&self) -> &Device;
    fn waiting_for_web_fonts_to_load(&self) -> bool;
    fn current_epoch(&self) -> Epoch;
    fn load_web_fonts_from_stylesheet(&self, stylesheet: ServoArc<Stylesheet>);
    fn add_stylesheet(
        &mut self,
        stylesheet: ServoArc<Stylesheet>,
        before_stylsheet: Option<ServoArc<Stylesheet>>
    );
    fn exit_now(&mut self);
    fn collect_reports(&self, reports_chan: ReportsChan);
    fn set_quirks_mode(&mut self, quirks_mode: QuirksMode);
    fn remove_stylesheet(&mut self, stylesheet: ServoArc<Stylesheet>);
    fn reflow(&mut self, script_reflow: ScriptReflow);
    fn register_paint_worklet_modules(
        &mut self,
        name: Atom,
        properties: Vec<Atom>,
        painter: Box<dyn Painter>
    );
    fn query_content_box(&self, node: OpaqueNode) -> Option<Rect<Au>>;
    fn query_content_boxes(&self, node: OpaqueNode) -> Vec<Rect<Au>>;
    fn query_client_rect(&self, node: OpaqueNode) -> Rect<i32>;
    fn query_element_inner_text(&self, node: TrustedNodeAddress) -> String;
    fn query_inner_window_dimension(
        &self,
        context: BrowsingContextId
    ) -> Option<Size2D<f32, CSSPixel>>;
    fn query_nodes_from_point(
        &self,
        point: Point2D<f32>,
        query_type: NodesFromPointQueryType
    ) -> Vec<UntrustedNodeAddress>;
    fn query_offset_parent(&self, node: OpaqueNode) -> OffsetParentResponse;
    fn query_resolved_style(
        &self,
        node: TrustedNodeAddress,
        pseudo: Option<PseudoElement>,
        property_id: PropertyId,
        animations: DocumentAnimationSet,
        animation_timeline_value: f64
    ) -> String;
    fn query_resolved_font_style(
        &self,
        node: TrustedNodeAddress,
        value: &str,
        animations: DocumentAnimationSet,
        animation_timeline_value: f64
    ) -> Option<ServoArc<Font>>;
    fn query_scrolling_area(&self, node: Option<OpaqueNode>) -> Rect<i32>;
    fn query_text_indext(
        &self,
        node: OpaqueNode,
        point: Point2D<f32>
    ) -> Option<usize>;
}

Required Methods

fn handle_constellation_msg(&mut self, msg: LayoutControlMsg)

Handle a single message from the Constellation.

fn handle_font_cache_msg(&mut self)

Handle a a single mesasge from the FontCacheThread.

fn device(&self) -> &Device

Get a reference to this Layout’s Stylo Device used to handle media queries and resolve font metrics.

fn waiting_for_web_fonts_to_load(&self) -> bool

Whether or not this layout is waiting for fonts from loaded stylesheets to finish loading.

fn current_epoch(&self) -> Epoch

The currently laid out Epoch that this Layout has finished.

fn load_web_fonts_from_stylesheet(&self, stylesheet: ServoArc<Stylesheet>)

Load all fonts from the given stylesheet, returning the number of fonts that need to be loaded.

fn add_stylesheet( &mut self, stylesheet: ServoArc<Stylesheet>, before_stylsheet: Option<ServoArc<Stylesheet>> )

Add a stylesheet to this Layout. This will add it to the Layout’s Stylist as well as loading all web fonts defined in the stylesheet. The second stylesheet is the insertion point (if it exists, the sheet needs to be inserted before it).

fn exit_now(&mut self)

Inform the layout that its ScriptThread is about to exit.

fn collect_reports(&self, reports_chan: ReportsChan)

Requests that layout measure its memory usage. The resulting reports are sent back via the supplied channel.

fn set_quirks_mode(&mut self, quirks_mode: QuirksMode)

Sets quirks mode for the document, causing the quirks mode stylesheet to be used.

fn remove_stylesheet(&mut self, stylesheet: ServoArc<Stylesheet>)

Removes a stylesheet from the Layout.

fn reflow(&mut self, script_reflow: ScriptReflow)

Requests a reflow.

fn register_paint_worklet_modules( &mut self, name: Atom, properties: Vec<Atom>, painter: Box<dyn Painter> )

Tells layout that script has added some paint worklet modules.

fn query_content_box(&self, node: OpaqueNode) -> Option<Rect<Au>>

fn query_content_boxes(&self, node: OpaqueNode) -> Vec<Rect<Au>>

fn query_client_rect(&self, node: OpaqueNode) -> Rect<i32>

fn query_element_inner_text(&self, node: TrustedNodeAddress) -> String

fn query_inner_window_dimension( &self, context: BrowsingContextId ) -> Option<Size2D<f32, CSSPixel>>

fn query_nodes_from_point( &self, point: Point2D<f32>, query_type: NodesFromPointQueryType ) -> Vec<UntrustedNodeAddress>

fn query_offset_parent(&self, node: OpaqueNode) -> OffsetParentResponse

fn query_resolved_style( &self, node: TrustedNodeAddress, pseudo: Option<PseudoElement>, property_id: PropertyId, animations: DocumentAnimationSet, animation_timeline_value: f64 ) -> String

fn query_resolved_font_style( &self, node: TrustedNodeAddress, value: &str, animations: DocumentAnimationSet, animation_timeline_value: f64 ) -> Option<ServoArc<Font>>

fn query_scrolling_area(&self, node: Option<OpaqueNode>) -> Rect<i32>

fn query_text_indext( &self, node: OpaqueNode, point: Point2D<f32> ) -> Option<usize>

Implementors