Struct NewsPanel 

pub struct NewsPanel { /* private fields */ }

News or highlights fed by the host’s Datafeed::news.

Keep it on the chart’s symbol with set_symbol; the user switches between that symbol’s stories and the whole market’s. With set_symbols they can add symbols, and with set_topics and set_providers narrow the stories by topic and provider; offering the values again keeps the choices still offered. Each change asks the feed again with the complete selection, and only the answer to the latest request is shown. A story opens to its text, with actions to show the chart at its time and to open its link. Call poll each frame, then show while the panel is open.

Implementations

impl NewsPanel

pub fn new() -> Self

A headlines panel without a feed.

pub fn highlights() -> Self

A highlights panel without a feed: summaries shown under their headlines.

pub fn set_feed(&mut self, feed: Arc<dyn Datafeed>)

Ask feed for stories from now on, starting at once.

pub fn set_symbol(&mut self, symbol: &str)

Follow symbol, such as the chart’s. A new symbol asks again while its stories are shown.

pub fn set_symbols(&mut self, symbols: impl IntoIterator<Item = String>)

Offer symbols as further symbols to show stories about, next to the followed one. None is selected at first; choices still offered stay selected.

pub fn set_topics(&mut self, topics: impl IntoIterator<Item = String>)

Offer topics, in the values the feed supports, as a filter. None is selected at first, which lists every topic; choices still offered stay selected.

pub fn set_providers(&mut self, providers: impl IntoIterator<Item = String>)

Offer providers, in the identifiers the feed uses, as a filter. None is selected at first, which lists every provider; choices still offered stay selected.

pub fn refresh(&mut self)

Ask the feed again, such as when the host learns of new stories.

pub fn poll(&mut self, ctx: &Context)

Receive the feed’s answer and wake the UI when the next one arrives.

pub fn show(&mut self, ui: &mut Ui) -> NewsAction

Render the stories, or the open story, after poll.

Trait Implementations

impl Default for NewsPanel

fn default() -> Self

Returns the “default value” for a type.