Chatbot Popup Widget

The Popup Widget provides a customizable chat interface that pops up on a click or after a set delay.

Quick Start

Add the following code to your HTML to create a basic popup widget:

<script type="module">
  import Agent from 'https://cdn.jsdelivr.net/npm/@agent-embed/js@latest/dist/web.js'
  Agent.initPopup({
    agentName: "your assistant name", //generated on the predictable dialogs app
    autoShowDelay: 3000,
  });
</script>

Size & Positioning

Modal Width Control

The popup's width can be customized while height is automatically managed:

Agent.initPopup({
  agentName: "Customer Support",
  autoShowDelay: 3000,
  theme: {
    width: "400px" // Custom width (default: 512px)
  }
});

Responsive Width Options

// Fixed pixel width
theme: { width: "500px" }

// Responsive viewport-based width
theme: { width: "80vw" }

// Maximum width with fallback
theme: { width: "min(600px, 90vw)" }

Modal Sizing Details

• Height: Fixed at 80% of viewport height (h-[80vh])
• Default Width: 512px on desktop, responsive on mobile
• Positioning: Centered both horizontally and vertically

Responsive Behavior

The Popup widget automatically adapts to different screen sizes:

Mobile Behavior (< 640px)

• Width: Responsive to screen size with padding
• Height: 80% of viewport height
• Positioning: Centered with appropriate margins
• Overlay: Full-screen semi-transparent background

Desktop Behavior (≥ 640px)

• Width: Uses theme.width value (default: 512px)
• Height: 80% of viewport height
• Positioning: Centered both horizontally and vertically

Responsive Considerations

• Scrolling is managed automatically for longer conversations

Programmatic Control

Control the popup widget with these JavaScript methods:

Method	Description
Agent.open()	Opens the popup widget
Agent.close()	Closes the popup widget
Agent.toggle()	Toggles between open and closed states
Agent.reset()	Clears all session data and reinitializes the chatbot for a fresh conversation

Example Usage

<button onclick="Agent.open()">Contact us</button>
<button onclick="Agent.close()">Close chat</button>
<button onclick="Agent.toggle()">Toggle chat</button>
<button onclick="Agent.reset()">Reset chat</button>

Configuration Options

Required Parameters

Parameter	Type	Description
agentName	string	Name of the assistant that will appear in the widget. Uses the specified Predictable Dialogs agent or an agent from your custom backend.
autoShowDelay	number	Time in milliseconds before the popup automatically appears after the page loads.

Widget Behaviour & Styling Parameters (optional)

Parameter	Type	Description
initialPrompt	string	Initial message sent to the AI when conversation starts. Note: Only used when initial responses are disabled on the server.
filterResponse	function	Callback function that processes AI responses before displaying them. Takes the response string as input and returns the modified string. Useful for removing citations or modifying content(see example).
defaultOpen	boolean	When true, the popup will be open by default but can be closed by the user.
isOpen	boolean	When true, the popup will be open by default and cannot be closed by the user.
onClose	function	Callback function that executes when the popup is closed.
onOpen	function	Callback function that executes when the popup is opened.
theme	object	Styling configuration object. Currently supports width property to set popup width (default: '512px' on laptop screens).
apiHost / apiStreamHost	string	URL endpoint for the chat service. Points to Predictable Dialogs backend by default, but can be configured to use your own backend.

Chat Elements Styling Parameters (optional)

To customize the appearance of chat elements—such as message fonts, colors, and bubbles, input—you can use the "Theme" tab in the Predictable Dialogs app dashboard. This lets you make changes in real time, rather than updating code with the props listed below.

Parameter	Type	Description
font	string	Font family name from fonts.bunny.net. Overrides theme font configuration. Example: font="Roboto"
background	object	Background configuration object with type ("Color" | "Image" | "None") and content (color hex or image URL). Overrides theme background configuration. Example: background={{type: "Color", content: "#f0f0f0"}}
bubble	object	Override bubble colors for host and guest messages. Contains optional hostBubbles and guestBubbles objects with color and backgroundColor properties. Overrides theme bubble configuration.
input	object	Input styling configuration with type, styles, and options properties. The styles object contains roundness, inputs (color, backgroundColor, placeholderColor), and buttons (color, backgroundColor) properties. Overrides theme input configuration.

Example with some Optional Parameters

Agent.initPopup({
  agentName: "Customer Support", //Generated on the predictable dialogs app
  autoShowDelay: 5000,
  initialPrompt: 'Tell me a joke',
  filterResponse: function(response) {
    const citationRegex = /【\d+:\d+†[^【】]+】/g;
    return response.replace(citationRegex, "");
  },
  defaultOpen: false,
  onOpen: () => console.log("Widget opened"),
  theme: {
    width: "400px"
  }
});

bubble (optional)

Override bubble colors for host and guest messages.

Type:

{
  hostBubbles?: {
    color: string;
    backgroundColor: string; 
  };
  guestBubbles?: {
    color: string;
    backgroundColor: string;
  };
}

Example:

bubble: {
  hostBubbles: {
    color: "#2b2c2b",
    backgroundColor: "#ff6b35" 
  },
  guestBubbles: {
    color: "#f8faf4",
    backgroundColor: "#0066cc"
  }
}

input (optional)

Override input styling and configuration.

Type:

{
  type: "text input";
  styles?: {
    roundness?: "none" | "medium" | "large";
    inputs?: {
      color?: string;
      backgroundColor?: string;
      placeholderColor?: string;
    };
    buttons?: {
      color?: string;
      backgroundColor?: string;
    };
  };
  options: {
    type: "fixed-bottom" | "floating";
    labels: {
      placeholder?: string;
      button?: string;
    };
    isLong?: boolean;
  };
}

Example:

input: {
  type: "text input",
  styles: {
    roundness: "medium",
    inputs: {
      color: "#e84117",
      backgroundColor: "#f7f7f7",
      placeholderColor: "#ababab"
    },
    buttons: {
      color: "#ffffff",
      backgroundColor: "#050505"
    }
  },
  options: {
    type: "fixed-bottom",
    labels: {
      placeholder: "Whats on your mind?",
      button: "Send me"
    },
    isLong: false
  }
}