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DialogQueue

Struct DialogQueue 

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pub struct DialogQueue { /* private fields */ }
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A FIFO queue of pending dialog requests and a map of posted responses.

Call request to enqueue a dialog; the backend picks it up from pop_pending and posts the result via respond. App code polls with pop_response.

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impl DialogQueue

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pub fn new() -> Self

Create an empty DialogQueue.

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pub fn request(&mut self, kind: DialogKind) -> DialogId

Enqueue a dialog request and return its DialogId.

The id is stable and can be used later to poll the response.

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pub fn pop_pending(&mut self) -> Option<DialogRequest>

Dequeue the oldest pending dialog request, if any.

Back-end adapters call this each frame to discover new dialogs to show.

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pub fn respond(&mut self, id: DialogId, response: DialogResponse)

Post a response for a completed dialog.

The response is stored until the app code polls it with pop_response.

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pub fn pop_response(&mut self, id: DialogId) -> Option<DialogResponse>

Consume and return the response for the given dialog, if one has been posted.

Returns None if the response has not yet been posted or was already consumed.

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pub fn peek_response(&self, id: DialogId) -> Option<&DialogResponse>

Peek at the response without consuming it.

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pub fn is_pending_empty(&self) -> bool

Returns true if there are no pending (unshown) dialog requests.

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pub fn pending_count(&self) -> usize

Returns the number of pending (unshown) dialog requests.

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pub fn is_responses_empty(&self) -> bool

Returns true if there are no ready (unread) responses.

Trait Implementations§

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impl Default for DialogQueue

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fn default() -> Self

Returns the “default value” for a type. Read more

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