Struct BrowsingContext 

pub struct BrowsingContext {
    pub bc_group_id: BrowsingContextGroupId,
    pub id: BrowsingContextId,
    pub webview_id: WebViewId,
    pub viewport_details: ViewportDetails,
    pub is_private: bool,
    pub inherited_secure_context: Option<bool>,
    pub throttled: bool,
    pub pipeline_id: PipelineId,
    pub parent_pipeline_id: Option<PipelineId>,
    pub pipelines: FxHashSet<PipelineId>,
}

The constellation’s view of a browsing context. Each browsing context has a session history, caused by navigation and traversing the history. Each browsing context has its current entry, plus past and future entries. The past is sorted chronologically, the future is sorted reverse chronologically: in particular prev.pop() is the latest past entry, and next.pop() is the earliest future entry.

Fields

bc_group_id: BrowsingContextGroupId

The browsing context group id where the top-level of this bc is found.

id: BrowsingContextId

The browsing context id.

webview_id: WebViewId

The top-level browsing context ancestor

viewport_details: ViewportDetails

The ViewportDetails of the frame that this BrowsingContext represents.

is_private: bool

Whether this browsing context is in private browsing mode.

inherited_secure_context: Option<bool>

Whether this browsing context inherits a secure context.

throttled: bool

Whether this browsing context should be throttled, using less resources by stopping animations and running timers at a heavily limited rate.

pipeline_id: PipelineId

The pipeline for the current session history entry.

parent_pipeline_id: Option<PipelineId>

The parent pipeline that contains this browsing context. None if this is a top level browsing context.

pipelines: FxHashSet<PipelineId>

All the pipelines that have been presented or will be presented in this browsing context.

Implementations

impl BrowsingContext

pub fn new( bc_group_id: BrowsingContextGroupId, id: BrowsingContextId, webview_id: WebViewId, pipeline_id: PipelineId, parent_pipeline_id: Option<PipelineId>, viewport_details: ViewportDetails, is_private: bool, inherited_secure_context: Option<bool>, throttled: bool, ) -> BrowsingContext

Create a new browsing context. Note this just creates the browsing context, it doesn’t add it to the constellation’s set of browsing contexts.

pub fn update_current_entry(&mut self, pipeline_id: PipelineId)

pub fn is_top_level(&self) -> bool

Is this a top-level browsing context?