r-shinychat 0.3.0

Breaking changes

• chat_mod_server() now returns a list of reactives for last_input and last_turn, as well functions to update_user_input(), append() and clear() the chat. (#130, #143, #145)

New features

• Added chat_restore() which adds Shiny bookmarking hooks to save and restore the {ellmer} chat client. (#28, #82)

• Added update_chat_user_input() for programmatically updating the user input of a chat UI element. (#78)

• shinychat now shows tool call request and results in the UI, and the feature is enabled by default in chat_app() and the chat module (chat_mod_server()). When using chat_append() with chat_ui(), set stream = "content" when you call the $stream_async() method on the ellmer::Chat client to ensure tool calls are included in the chat stream output. Learn more in the tool calling UI article. (#52)

• Added chat_append(icon=...) and chat_ui(icon_assistant=...) for customizing the icon that appears next to assistant responses. (#88)

Improvements

• chat_app() now correctly restores the chat client state when refreshing the app, e.g. by reloading the page. (#71)

• External links in chat messages in chat_ui() now open in a new tab by default, with a confirmation dialog. (#120)

Bug fixes

• The chat input no longer submits incomplete text when the user has activated IME completions (e.g. while typing in Japanese or Chinese). (#85)

Internal changes

• We consolidated the <shiny-chat-message> and <shiny-user-message> components into a single <shiny-chat-message> component with a data-role attribute to indicate whether it's an "assistant" or "user" message. This likely has minimal impact on your apps, other than custom styles. You should update any shiny-user-message rules to use shiny-chat-message[data-role="user"]. (#101)

• The chat UI's send input button is now identified by the class .shiny-chat-btn-send. (@DeepanshKhurana, #138)