MessageComposerViewModel
ViewModel responsible for handling the composing and sending of messages.
It relays all its core actions to a shared data source, as a central place for all the Composer logic. Additionally, all the core data that can be reused across our SDKs is available through shared data sources, while implementation-specific data is stored in respective in the ViewModel.
Parameters
The controller used to relay all the actions and fetch all the state.
Properties
If the message will be shown in the channel after it is sent.
Represents the list of commands to be displayed in the command suggestion list popup.
Represents the remaining time until the user is allowed to send the next message.
Represents the list of links that can be previewed.
Represents the list of users that can be used to autocomplete the current mention input.
The full UI state that has all the required data.
Current message mode, either MessageMode.Normal or MessageMode.MessageThread. Used to determine if we're sending a thread reply or a regular message.
Holds information about the abilities the current user is able to exercise in the given channel.
Represents the currently selected attachments, that are shown within the composer UI.
Represents the list of validation errors for the current text input and the currently selected attachments.
Functions
Stores the selected attachments from the attachment picker. These will be shown in the UI, within the composer component. We upload and send these attachments once the user taps on the send button.
Builds a new Message to send to our API. Based on the internal state, we use the current action's message and apply the given changes.
Dismisses all message actions from the UI and clears the input based on the internal state.
Updates the UI state when leaving the thread, to switch back to the MessageMode.Normal message mode, by calling setMessageMode.
Handles the selected messageAction.
Removes a selected attachment from the list, when the user taps on the cancel/delete button.
Switches the message composer to the command input mode.
Autocompletes the current text input with the mention from the selected user.
Sends a given message using our Stream API. Based on the internal state, we either edit an existing message, or we send a new message, using our API.
Called when the "Also send as a direct message" checkbox is checked or unchecked.
Called when the input changes and the internal state needs to be updated.
Called when the message mode changes and the internal state needs to be updated.
Sets the typing updates buffer.
Toggles the visibility of the command suggestion list popup.