Enum SessionHistoryDiff 

pub enum SessionHistoryDiff {
    BrowsingContext {
        browsing_context_id: BrowsingContextId,
        old_reloader: NeedsToReload,
        new_reloader: NeedsToReload,
    },
    Pipeline {
        pipeline_reloader: NeedsToReload,
        old_history_state_id: Option<HistoryStateId>,
        old_url: ServoUrl,
        new_history_state_id: HistoryStateId,
        new_url: ServoUrl,
    },
    Hash {
        pipeline_reloader: NeedsToReload,
        old_url: ServoUrl,
        new_url: ServoUrl,
    },
}

Represents a the difference between two adjacent session history entries.

Variants

BrowsingContext

Represents a diff where the active pipeline of an entry changed.

Fields

browsing_context_id: BrowsingContextId

The browsing context whose pipeline changed

old_reloader: NeedsToReload

The previous pipeline (used when traversing into the past)

new_reloader: NeedsToReload

The next pipeline (used when traversing into the future)

Pipeline

Represents a diff where the active state of a pipeline changed.

Fields

pipeline_reloader: NeedsToReload

The pipeline whose history state changed.

old_history_state_id: Option<HistoryStateId>

The old history state id.

old_url: ServoUrl

The old url

new_history_state_id: HistoryStateId

The new history state id.

new_url: ServoUrl

The new url

Hash

Fields

pipeline_reloader: NeedsToReload

old_url: ServoUrl

new_url: ServoUrl

Implementations

impl SessionHistoryDiff

pub fn alive_old_pipeline(&self) -> Option<PipelineId>

Returns the old pipeline id if that pipeline is still alive, otherwise returns None

pub fn alive_new_pipeline(&self) -> Option<PipelineId>

Returns the new pipeline id if that pipeline is still alive, otherwise returns None

pub fn replace_reloader( &mut self, replaced_reloader: &NeedsToReload, reloader: &NeedsToReload, )

Replaces all occurances of the replaced pipeline with a new pipeline

Trait Implementations

impl Debug for SessionHistoryDiff

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.