package slack // https://api.slack.com/reference/messaging/block-elements const ( METCheckboxGroups MessageElementType = "checkboxes" METImage MessageElementType = "image" METButton MessageElementType = "button" METOverflow MessageElementType = "overflow" METDatepicker MessageElementType = "datepicker" METPlainTextInput MessageElementType = "plain_text_input" METRadioButtons MessageElementType = "radio_buttons" MixedElementImage MixedElementType = "mixed_image" MixedElementText MixedElementType = "mixed_text" OptTypeStatic string = "static_select" OptTypeExternal string = "external_select" OptTypeUser string = "users_select" OptTypeConversations string = "conversations_select" OptTypeChannels string = "channels_select" MultiOptTypeStatic string = "multi_static_select" MultiOptTypeExternal string = "multi_external_select" MultiOptTypeUser string = "multi_users_select" MultiOptTypeConversations string = "multi_conversations_select" MultiOptTypeChannels string = "multi_channels_select" ) type MessageElementType string type MixedElementType string // BlockElement defines an interface that all block element types should implement. type BlockElement interface { ElementType() MessageElementType } type MixedElement interface { MixedElementType() MixedElementType } type Accessory struct { ImageElement *ImageBlockElement ButtonElement *ButtonBlockElement OverflowElement *OverflowBlockElement DatePickerElement *DatePickerBlockElement PlainTextInputElement *PlainTextInputBlockElement RadioButtonsElement *RadioButtonsBlockElement SelectElement *SelectBlockElement MultiSelectElement *MultiSelectBlockElement CheckboxGroupsBlockElement *CheckboxGroupsBlockElement UnknownElement *UnknownBlockElement } // NewAccessory returns a new Accessory for a given block element func NewAccessory(element BlockElement) *Accessory { switch element.(type) { case *ImageBlockElement: return &Accessory{ImageElement: element.(*ImageBlockElement)} case *ButtonBlockElement: return &Accessory{ButtonElement: element.(*ButtonBlockElement)} case *OverflowBlockElement: return &Accessory{OverflowElement: element.(*OverflowBlockElement)} case *DatePickerBlockElement: return &Accessory{DatePickerElement: element.(*DatePickerBlockElement)} case *PlainTextInputBlockElement: return &Accessory{PlainTextInputElement: element.(*PlainTextInputBlockElement)} case *RadioButtonsBlockElement: return &Accessory{RadioButtonsElement: element.(*RadioButtonsBlockElement)} case *SelectBlockElement: return &Accessory{SelectElement: element.(*SelectBlockElement)} case *MultiSelectBlockElement: return &Accessory{MultiSelectElement: element.(*MultiSelectBlockElement)} case *CheckboxGroupsBlockElement: return &Accessory{CheckboxGroupsBlockElement: element.(*CheckboxGroupsBlockElement)} default: return &Accessory{UnknownElement: element.(*UnknownBlockElement)} } } // BlockElements is a convenience struct defined to allow dynamic unmarshalling of // the "elements" value in Slack's JSON response, which varies depending on BlockElement type type BlockElements struct { ElementSet []BlockElement `json:"elements,omitempty"` } // UnknownBlockElement any block element that this library does not directly support. // See the "Rich Elements" section at the following URL: // https://api.slack.com/changelog/2019-09-what-they-see-is-what-you-get-and-more-and-less // New block element types may be introduced by Slack at any time; this is a catch-all for any such block elements. type UnknownBlockElement struct { Type MessageElementType `json:"type"` Elements BlockElements } // ElementType returns the type of the Element func (s UnknownBlockElement) ElementType() MessageElementType { return s.Type } // ImageBlockElement An element to insert an image - this element can be used // in section and context blocks only. If you want a block with only an image // in it, you're looking for the image block. // // More Information: https://api.slack.com/reference/messaging/block-elements#image type ImageBlockElement struct { Type MessageElementType `json:"type"` ImageURL string `json:"image_url"` AltText string `json:"alt_text"` } // ElementType returns the type of the Element func (s ImageBlockElement) ElementType() MessageElementType { return s.Type } func (s ImageBlockElement) MixedElementType() MixedElementType { return MixedElementImage } // NewImageBlockElement returns a new instance of an image block element func NewImageBlockElement(imageURL, altText string) *ImageBlockElement { return &ImageBlockElement{ Type: METImage, ImageURL: imageURL, AltText: altText, } } type Style string const ( StyleDefault Style = "default" StylePrimary Style = "primary" StyleDanger Style = "danger" ) // ButtonBlockElement defines an interactive element that inserts a button. The // button can be a trigger for anything from opening a simple link to starting // a complex workflow. // // More Information: https://api.slack.com/reference/messaging/block-elements#button type ButtonBlockElement struct { Type MessageElementType `json:"type,omitempty"` Text *TextBlockObject `json:"text"` ActionID string `json:"action_id,omitempty"` URL string `json:"url,omitempty"` Value string `json:"value,omitempty"` Confirm *ConfirmationBlockObject `json:"confirm,omitempty"` Style Style `json:"style,omitempty"` } // ElementType returns the type of the element func (s ButtonBlockElement) ElementType() MessageElementType { return s.Type } // WithStyling adds styling to the button object and returns the modified ButtonBlockElement func (s *ButtonBlockElement) WithStyle(style Style) *ButtonBlockElement { s.Style = style return s } // NewButtonBlockElement returns an instance of a new button element to be used within a block func NewButtonBlockElement(actionID, value string, text *TextBlockObject) *ButtonBlockElement { return &ButtonBlockElement{ Type: METButton, ActionID: actionID, Text: text, Value: value, } } // OptionsResponse defines the response used for select block typahead. // // More Information: https://api.slack.com/reference/block-kit/block-elements#external_multi_select type OptionsResponse struct { Options []*OptionBlockObject `json:"options,omitempty"` } // OptionGroupsResponse defines the response used for select block typahead. // // More Information: https://api.slack.com/reference/block-kit/block-elements#external_multi_select type OptionGroupsResponse struct { OptionGroups []*OptionGroupBlockObject `json:"option_groups,omitempty"` } // SelectBlockElement defines the simplest form of select menu, with a static list // of options passed in when defining the element. // // More Information: https://api.slack.com/reference/messaging/block-elements#select type SelectBlockElement struct { Type string `json:"type,omitempty"` Placeholder *TextBlockObject `json:"placeholder,omitempty"` ActionID string `json:"action_id,omitempty"` Options []*OptionBlockObject `json:"options,omitempty"` OptionGroups []*OptionGroupBlockObject `json:"option_groups,omitempty"` InitialOption *OptionBlockObject `json:"initial_option,omitempty"` InitialUser string `json:"initial_user,omitempty"` InitialConversation string `json:"initial_conversation,omitempty"` InitialChannel string `json:"initial_channel,omitempty"` DefaultToCurrentConversation bool `json:"default_to_current_conversation,omitempty"` ResponseURLEnabled bool `json:"response_url_enabled,omitempty"` MinQueryLength *int `json:"min_query_length,omitempty"` Confirm *ConfirmationBlockObject `json:"confirm,omitempty"` } // ElementType returns the type of the Element func (s SelectBlockElement) ElementType() MessageElementType { return MessageElementType(s.Type) } // NewOptionsSelectBlockElement returns a new instance of SelectBlockElement for use with // the Options object only. func NewOptionsSelectBlockElement(optType string, placeholder *TextBlockObject, actionID string, options ...*OptionBlockObject) *SelectBlockElement { return &SelectBlockElement{ Type: optType, Placeholder: placeholder, ActionID: actionID, Options: options, } } // NewOptionsGroupSelectBlockElement returns a new instance of SelectBlockElement for use with // the Options object only. func NewOptionsGroupSelectBlockElement( optType string, placeholder *TextBlockObject, actionID string, optGroups ...*OptionGroupBlockObject, ) *SelectBlockElement { return &SelectBlockElement{ Type: optType, Placeholder: placeholder, ActionID: actionID, OptionGroups: optGroups, } } // MultiSelectBlockElement defines a multiselect menu, with a static list // of options passed in when defining the element. // // More Information: https://api.slack.com/reference/messaging/block-elements#multi_select type MultiSelectBlockElement struct { Type string `json:"type,omitempty"` Placeholder *TextBlockObject `json:"placeholder,omitempty"` ActionID string `json:"action_id,omitempty"` Options []*OptionBlockObject `json:"options,omitempty"` OptionGroups []*OptionGroupBlockObject `json:"option_groups,omitempty"` InitialOptions []*OptionBlockObject `json:"initial_options,omitempty"` InitialUsers []string `json:"initial_users,omitempty"` InitialConversations []string `json:"initial_conversations,omitempty"` InitialChannels []string `json:"initial_channels,omitempty"` MinQueryLength *int `json:"min_query_length,omitempty"` Confirm *ConfirmationBlockObject `json:"confirm,omitempty"` } // ElementType returns the type of the Element func (s MultiSelectBlockElement) ElementType() MessageElementType { return MessageElementType(s.Type) } // NewOptionsMultiSelectBlockElement returns a new instance of SelectBlockElement for use with // the Options object only. func NewOptionsMultiSelectBlockElement(optType string, placeholder *TextBlockObject, actionID string, options ...*OptionBlockObject) *MultiSelectBlockElement { return &MultiSelectBlockElement{ Type: optType, Placeholder: placeholder, ActionID: actionID, Options: options, } } // NewOptionsGroupMultiSelectBlockElement returns a new instance of MultiSelectBlockElement for use with // the Options object only. func NewOptionsGroupMultiSelectBlockElement( optType string, placeholder *TextBlockObject, actionID string, optGroups ...*OptionGroupBlockObject, ) *MultiSelectBlockElement { return &MultiSelectBlockElement{ Type: optType, Placeholder: placeholder, ActionID: actionID, OptionGroups: optGroups, } } // OverflowBlockElement defines the fields needed to use an overflow element. // And Overflow Element is like a cross between a button and a select menu - // when a user clicks on this overflow button, they will be presented with a // list of options to choose from. // // More Information: https://api.slack.com/reference/messaging/block-elements#overflow type OverflowBlockElement struct { Type MessageElementType `json:"type"` ActionID string `json:"action_id,omitempty"` Options []*OptionBlockObject `json:"options"` Confirm *ConfirmationBlockObject `json:"confirm,omitempty"` } // ElementType returns the type of the Element func (s OverflowBlockElement) ElementType() MessageElementType { return s.Type } // NewOverflowBlockElement returns an instance of a new Overflow Block Element func NewOverflowBlockElement(actionID string, options ...*OptionBlockObject) *OverflowBlockElement { return &OverflowBlockElement{ Type: METOverflow, ActionID: actionID, Options: options, } } // DatePickerBlockElement defines an element which lets users easily select a // date from a calendar style UI. Date picker elements can be used inside of // section and actions blocks. // // More Information: https://api.slack.com/reference/messaging/block-elements#datepicker type DatePickerBlockElement struct { Type MessageElementType `json:"type"` ActionID string `json:"action_id,omitempty"` Placeholder *TextBlockObject `json:"placeholder,omitempty"` InitialDate string `json:"initial_date,omitempty"` Confirm *ConfirmationBlockObject `json:"confirm,omitempty"` } // ElementType returns the type of the Element func (s DatePickerBlockElement) ElementType() MessageElementType { return s.Type } // NewDatePickerBlockElement returns an instance of a date picker element func NewDatePickerBlockElement(actionID string) *DatePickerBlockElement { return &DatePickerBlockElement{ Type: METDatepicker, ActionID: actionID, } } // PlainTextInputBlockElement creates a field where a user can enter freeform // data. // Plain-text input elements are currently only available in modals. // // More Information: https://api.slack.com/reference/block-kit/block-elements#input type PlainTextInputBlockElement struct { Type MessageElementType `json:"type"` ActionID string `json:"action_id,omitempty"` Placeholder *TextBlockObject `json:"placeholder,omitempty"` InitialValue string `json:"initial_value,omitempty"` Multiline bool `json:"multiline,omitempty"` MinLength int `json:"min_length,omitempty"` MaxLength int `json:"max_length,omitempty"` } // ElementType returns the type of the Element func (s PlainTextInputBlockElement) ElementType() MessageElementType { return s.Type } // NewPlainTextInputBlockElement returns an instance of a plain-text input // element func NewPlainTextInputBlockElement(placeholder *TextBlockObject, actionID string) *PlainTextInputBlockElement { return &PlainTextInputBlockElement{ Type: METPlainTextInput, ActionID: actionID, Placeholder: placeholder, } } // CheckboxGroupsBlockElement defines an element which allows users to choose // one or more items from a list of possible options. // // More Information: https://api.slack.com/reference/block-kit/block-elements#checkboxes type CheckboxGroupsBlockElement struct { Type MessageElementType `json:"type"` ActionID string `json:"action_id,omitempty"` Options []*OptionBlockObject `json:"options"` InitialOptions []*OptionBlockObject `json:"initial_options,omitempty"` Confirm *ConfirmationBlockObject `json:"confirm,omitempty"` } // ElementType returns the type of the Element func (c CheckboxGroupsBlockElement) ElementType() MessageElementType { return c.Type } // NewCheckboxGroupsBlockElement returns an instance of a radio block element func NewCheckboxGroupsBlockElement(actionID string, options ...*OptionBlockObject) *CheckboxGroupsBlockElement { return &CheckboxGroupsBlockElement{ Type: METCheckboxGroups, ActionID: actionID, Options: options, } } // RadioButtonsBlockElement defines an element which lets users choose one item // from a list of possible options. // // More Information: https://api.slack.com/reference/block-kit/block-elements#radio type RadioButtonsBlockElement struct { Type MessageElementType `json:"type"` ActionID string `json:"action_id,omitempty"` Options []*OptionBlockObject `json:"options"` InitialOption *OptionBlockObject `json:"initial_option,omitempty"` Confirm *ConfirmationBlockObject `json:"confirm,omitempty"` } // ElementType returns the type of the Element func (s RadioButtonsBlockElement) ElementType() MessageElementType { return s.Type } // NewRadioButtonsBlockElement returns an instance of a radio buttons element. func NewRadioButtonsBlockElement(actionID string, options ...*OptionBlockObject) *RadioButtonsBlockElement { return &RadioButtonsBlockElement{ Type: METRadioButtons, ActionID: actionID, Options: options, } }