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//! # Public Channel Select //! [slack api docs 🔗](https://api.slack.com/reference/block-kit/block-elements#channel_select) //! //! This select menu will populate its options with a list of //! public channels visible to the current user in the active workspace. use std::borrow::Cow; use serde::{Deserialize, Serialize}; use validator::Validate; use crate::{compose::Confirm, text, val_helpr::ValidationResult}; /// # Public Channel Select /// [slack api docs 🔗](https://api.slack.com/reference/block-kit/block-elements#channel_select) /// /// This select menu will populate its options with a list of /// public channels visible to the current user in the active workspace. #[derive(Clone, Debug, Deserialize, Hash, PartialEq, Serialize, Validate)] pub struct PublicChannel<'a> { #[validate(custom = "super::validate::placeholder")] placeholder: text::Text, #[validate(length(max = 255))] action_id: Cow<'a, str>, #[serde(skip_serializing_if = "Option::is_none")] #[validate] confirm: Option<Confirm>, #[serde(skip_serializing_if = "Option::is_none")] initial_channel: Option<Cow<'a, str>>, } impl<'a> PublicChannel<'a> { /// Build a new public channel select element /// /// # Examples /// ``` /// use std::convert::TryFrom; /// /// use slack_blocks::{blocks::{Actions, Block}, /// compose::Opt, /// elems::{select, BlockElement}, /// text}; /// /// let select: BlockElement = /// select::PublicChannel::builder().placeholder("Choose your favorite channel!") /// .action_id("fave_channel") /// .build() /// .into(); /// /// let block: Block = Actions::try_from(select).unwrap().into(); /// ``` pub fn builder() -> build::PublicChannelBuilderInit<'a> { build::PublicChannelBuilderInit::new() } /// Construct a Select element, with a data /// source of the Public Channels in the user's /// Workspace. /// /// # Arguments /// - `placeholder` - A [`plain_text` only text object 🔗] that defines /// the placeholder text shown on the menu. /// Maximum length for the `text` in this field is 150 characters. /// /// - `action_id` - An identifier for the action triggered when a menu option is selected. /// You can use this when you receive an interaction payload to [identify the source of the action 🔗]. /// Should be unique among all other `action_id`s used elsewhere by your app. /// Maximum length for this field is 255 characters. /// /// [`plain_text` only text object 🔗]: https://api.slack.comhttps://api.slack.com/reference/block-kit/composition-objects#text /// [identify the source of the action 🔗]: https://api.slack.comhttps://api.slack.com/interactivity/handling#payloads /// /// # Example /// ``` /// use slack_blocks::elems::select; /// use slack_blocks::blocks; /// use slack_blocks::text; /// /// let select = select::PublicChannel::from_placeholder_and_action_id( /// "Pick a Channel...", /// "ABC123" /// ); /// /// let blocks: Vec<blocks::Block> = vec![ /// blocks::Section::from_text(text::Plain::from( /// "Pick a channel to send your poll to...") /// ).into(), /// blocks::Actions::from_action_elements(vec![select.into()]).into(), /// ]; /// /// // <send to slack's API> /// ``` #[deprecated(since = "0.16.10", note = "use elems::select::PublicChannel::builder instead.")] pub fn from_placeholder_and_action_id(placeholder: impl Into<text::Plain>, action_id: impl Into<Cow<'a, str>>) -> Self { Self { placeholder: placeholder.into().into(), action_id: action_id.into(), confirm: None, initial_channel: None } } /// Optional method that allows you to add a /// confirmation dialog that appears after a /// menu item is selected. /// /// # Arguments /// - `confirm` - A [confirm object 🔗] that defines an /// optional confirmation dialog that appears after /// a menu item is selected. /// /// [confirm object 🔗]: https://api.slack.comhttps://api.slack.com/reference/block-kit/composition-objects#confirm /// /// # Example /// ``` /// use slack_blocks::elems::select; /// use slack_blocks::text; /// use slack_blocks::blocks; /// use slack_blocks::compose; /// /// let confirm = compose::Confirm::from_parts( /// "Confirm Poll Channel", /// text::Plain::from( /// "Are you sure this is the channel you want to send this to?" /// ), /// "Yep, I'm sure", /// "No way!" /// ); /// /// let select = select::PublicChannel::from_placeholder_and_action_id( /// "Pick a Channel...", /// "ABC123" /// ) /// .with_confirm(confirm); /// /// let blocks: Vec<blocks::Block> = vec![ /// blocks::Section::from_text(text::Plain::from( /// "Pick a channel to send your poll to..." /// )).into(), /// blocks::Actions::from_action_elements(vec![select.into()]).into(), /// ]; /// /// // <send to slack's API> /// ``` #[deprecated(since = "0.16.10", note = "use elems::select::PublicChannel::builder instead.")] pub fn with_confirm(mut self, confirm: Confirm) -> Self { self.confirm = Some(confirm); self } /// Optional method that allows you to set a pre-selected /// channel in the select menu with the channel's ID. /// /// # Arguments /// - `channel` - The ID of any valid public channel to be /// pre-selected when the menu loads. /// /// # Example /// ``` /// use slack_blocks::elems::select; /// use slack_blocks::text; /// use slack_blocks::blocks; /// use slack_blocks::compose; /// /// let confirm = compose::Confirm::from_parts( /// "Confirm Poll Channel", /// text::Plain::from( /// "Are you sure this is the channel you want to send this to?" /// ), /// "Yep, I'm sure", /// "No way!" /// ); /// let channel_general = ("#general", "C12345"); /// let select = select::PublicChannel::from_placeholder_and_action_id( /// "Pick a Channel...", /// "ABC123" /// ) /// .with_confirm(confirm) /// .with_initial_channel(channel_general.1); /// /// let blocks: Vec<blocks::Block> = vec![ /// blocks::Section::from_text(text::Plain::from( /// "Pick a channel to send your poll to..." /// )).into(), /// blocks::Actions::from_action_elements(vec![select.into()]).into(), /// ]; /// /// // <send to slack's API> /// ``` #[deprecated(since = "0.16.10", note = "use elems::select::PublicChannel::builder instead.")] pub fn with_initial_channel(mut self, channel_id: impl Into<Cow<'a, str>>) -> Self { self.initial_channel = Some(channel_id.into()); self } /// Validate that this Public Channel Select element /// agrees with Slack's model requirements /// /// # Errors /// - If `from_placeholder_and_action_id` was called with /// `placeholder` longer than 150 chars /// - If `from_placeholder_and_action_id` was called with /// `action_id` longer than 255 chars /// /// # Example /// ``` /// use slack_blocks::elems::select; /// /// let select = select::PublicChannel::from_placeholder_and_action_id( /// r#"Hey I really would appreciate it if you chose /// a channel relatively soon, so that we can figure out /// where we need to send this poll, ok? it's kind of /// important that you specify where this poll should be /// sent, in case we haven't made that super clear. /// If you understand, could you pick a channel, already??"#, /// "ABC123" /// ); /// /// assert!(matches!(select.validate(), Err(_))) /// ``` pub fn validate(&self) -> ValidationResult { Validate::validate(&self) } } /// Public Channel Select Builder pub mod build { use std::marker::PhantomData; use super::*; use crate::{build::*, elems::select::{multi, select_kind}}; /// Required builder methods #[allow(non_camel_case_types)] pub mod method { /// PublicChannelBuilder.placeholder #[derive(Copy, Clone, Debug)] pub struct placeholder; /// PublicChannelBuilder.action_id #[derive(Copy, Clone, Debug)] pub struct action_id; } /// PublicChannel Select builder /// /// Allows you to construct a PublicChannel Select safely, with compile-time checks /// on required setter methods. /// /// # Required Methods /// `PublicChannelBuilder::build()` is only available if these methods have been called: /// - `placeholder` /// - `action_id` /// /// NOTE: I'm experimenting with an API that deviates from the `from_foo_and_bar`. /// If you're a user of this library, please give me feedback in the repository /// as to which pattern you like more. This will most likely be the new builder pattern /// for every structure in this crate. /// /// # Example /// ``` /// use std::convert::TryFrom; /// /// use slack_blocks::{blocks::{Actions, Block}, /// compose::Opt, /// elems::{select::PublicChannel, BlockElement}}; /// /// let select: BlockElement = /// PublicChannel::builder().placeholder("Choose your favorite channel!") /// .action_id("favorite_channel") /// .build() /// .into(); /// /// let block: Block = /// Actions::try_from(select).expect("actions supports select elements") /// .into(); /// /// // <send block to API> /// ``` #[derive(Debug)] pub struct PublicChannelBuilder<'a, Multi, Placeholder, ActionId> { placeholder: Option<text::Text>, action_id: Option<Cow<'a, str>>, confirm: Option<Confirm>, initial_channel: Option<Cow<'a, str>>, initial_channels: Option<Cow<'a, [String]>>, max_selected_items: Option<u32>, state: PhantomData<(Multi, Placeholder, ActionId)>, } /// Initial state for PublicChannelBuilder. /// /// Users will be able to choose one of the options. /// /// To allow choosing many, use `slack_blocks::elems::select::multi::PublicChannel::builder`. pub type PublicChannelBuilderInit<'a> = PublicChannelBuilder<'a, select_kind::Single, RequiredMethodNotCalled<method::placeholder>, RequiredMethodNotCalled<method::action_id>>; /// Initial state for PublicChannelBuilder. /// /// Users will be able to choose many of the options. pub type MultiPublicChannelBuilderInit<'a> = PublicChannelBuilder<'a, select_kind::Multi, RequiredMethodNotCalled<method::placeholder>, RequiredMethodNotCalled<method::action_id>>; // Methods that are always available impl<'a, M, P, A> PublicChannelBuilder<'a, M, P, A> { /// Construct a new PublicChannelBuilder pub fn new() -> Self { Self { placeholder: None, action_id: None, initial_channel: None, initial_channels: None, max_selected_items: None, confirm: None, state: PhantomData::<_> } } /// Change the marker type params to some other arbitrary marker type params fn cast_state<P2, A2>(self) -> PublicChannelBuilder<'a, M, P2, A2> { PublicChannelBuilder { placeholder: self.placeholder, action_id: self.action_id, confirm: self.confirm, initial_channel: self.initial_channel, initial_channels: self.initial_channels, max_selected_items: self.max_selected_items, state: PhantomData::<_> } } /// Set `placeholder` (**Required**) /// /// A [`plain_text` only text object 🔗] that defines /// the placeholder text shown on the menu. /// Maximum length for the `text` in this field is 150 characters. /// /// [`plain_text` only text object 🔗]: https://api.slack.comhttps://api.slack.com/reference/block-kit/composition-objects#text pub fn placeholder( mut self, text: impl Into<text::Plain>) -> PublicChannelBuilder<'a, M, Set<method::placeholder>, A> { self.placeholder = Some(text.into().into()); self.cast_state() } /// Set `action_id` (**Required**) /// /// An identifier for the action triggered when a menu option is selected. /// You can use this when you receive an interaction payload to [identify the source of the action 🔗]. /// Should be unique among all other `action_id`s used elsewhere by your app. /// Maximum length for this field is 255 characters. /// /// [identify the source of the action 🔗]: https://api.slack.comhttps://api.slack.com/interactivity/handling#payloads pub fn action_id( mut self, text: impl Into<Cow<'a, str>>) -> PublicChannelBuilder<'a, M, P, Set<method::action_id>> { self.action_id = Some(text.into()); self.cast_state() } /// Set `confirm` (Optional) /// /// A [confirm object 🔗] that defines an /// optional confirmation dialog that appears after /// a menu item is selected. /// /// [confirm object 🔗]: https://api.slack.comhttps://api.slack.com/reference/block-kit/composition-objects#confirm pub fn confirm(mut self, confirm: Confirm) -> Self { self.confirm = Some(confirm); self } } impl<'a, M, P, A> PublicChannelBuilder<'a, M, P, A> { /// Set `initial_channel` (Optional) /// /// The ID of any valid conversation to be pre-selected when the menu loads. /// /// If `default_to_current_conversation` is called, this will take precedence. pub fn initial_channel<S>(mut self, channel: S) -> Self where S: Into<Cow<'a, str>> { self.initial_channel = Some(channel.into()); self } /// Set `initial_channel` (Optional, exclusive with `initial_channel_current`) /// /// A collection of IDs of any valid conversations to be pre-selected when the menu loads. pub fn initial_channels<S>(mut self, channels: S) -> Self where S: Into<Cow<'a, [String]>> { self.initial_channels = Some(channels.into()); self.cast_state() } } impl<'a, P, A> PublicChannelBuilder<'a, select_kind::Multi, P, A> { /// Set `max_selected_items` (Optional) /// /// Specifies the maximum number of items that can be selected in the menu. /// /// Minimum number is 1. pub fn max_selected_items(mut self, max: u32) -> Self { self.max_selected_items = Some(max); self } } impl<'a> PublicChannelBuilder<'a, select_kind::Single, Set<method::placeholder>, Set<method::action_id>> { /// All done building, now give me a darn select element! /// /// > `no method name 'build' found for struct 'select::static_::build::PublicChannelBuilder<...>'`? /// Make sure all required setter methods have been called. See docs for `PublicChannelBuilder`. /// /// ```compile_fail /// use slack_blocks::elems::select::PublicChannel; /// /// let sel = PublicChannel::builder().build(); // Won't compile! /// ``` /// /// ``` /// use slack_blocks::elems::select::PublicChannel; /// /// let sel = PublicChannel::builder().placeholder("foo") /// .action_id("bar") /// .build(); /// ``` pub fn build(self) -> PublicChannel<'a> { PublicChannel { placeholder: self.placeholder.unwrap(), action_id: self.action_id.unwrap(), confirm: self.confirm, initial_channel: self.initial_channel } } } impl<'a> PublicChannelBuilder<'a, select_kind::Multi, Set<method::placeholder>, Set<method::action_id>> { /// All done building, now give me a darn select element! /// /// > `no method name 'build' found for struct 'select::static_::build::PublicChannelBuilder<...>'`? /// Make sure all required setter methods have been called. See docs for `PublicChannelBuilder`. /// /// ```compile_fail /// use slack_blocks::elems::select; /// /// let sel = select::multi::PublicChannel::builder().build(); // Won't compile! /// ``` /// /// ``` /// use slack_blocks::elems::select; /// /// let sel = select::multi::PublicChannel::builder().placeholder("foo") /// .action_id("bar") /// .build(); /// ``` pub fn build(self) -> multi::PublicChannel<'a> { multi::PublicChannel { placeholder: self.placeholder.unwrap(), action_id: self.action_id.unwrap(), confirm: self.confirm, initial_channels: self.initial_channels, max_selected_items: self.max_selected_items } } } }