Struct PreviewMediaRequest 

pub struct PreviewMediaRequest {
    pub items: Vec<PreviewMediaItem>,
    pub start_index: i32,
    pub advance: PreviewMediaAdvance,
    pub show_index_indicator: bool,
    pub callback_id: u64,
    pub presented_callback_id: u64,
    pub change_callback_id: u64,
}

Fields

items: Vec<PreviewMediaItem>

start_index: i32

advance: PreviewMediaAdvance

show_index_indicator: bool

callback_id: u64

Callback_id for the final preview result. Fires once when the session ends (manual/auto/interrupted/error). Payload: serialized PreviewMediaResultObj ({reason, lastIndex}).

presented_callback_id: u64

Callback_id for the “first frame composited” signal. Fires once when the first pixel of the underlying media has been painted to screen. Native MAY skip on degenerate paths (abort before any item rendered, process tear-down, etc.) — the JS-side presented Promise is also woken by a fallback when completed settles, and by a total timeout after that, so it never hangs. The callback payload, when fired, is an empty JSON object {}.

change_callback_id: u64

Stream callback_id for current-item changes. Native fires it with payload {"index": N} whenever the displayed item changes — including the initially displayed item — for swipes, taps, and auto-advance. Consecutive duplicates are tolerated (the JS side dedupes); missing the initial fire is also tolerated (the JS side seeds the snapshot from startIndex).

Trait Implementations

impl Clone for PreviewMediaRequest

fn clone(&self) -> PreviewMediaRequest

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PreviewMediaRequest

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

Formats the value using the given formatter.