Multiple intents

// For usage information, see the README.md file.
// This root index file contains the prepare function calls that initialize each intent.
// Each intent entrypoint is respondible for exporting the intent contract implementation.
import { prepareContentPublisher } from "@canva/intents/content";
import { prepareDesignEditor } from "@canva/intents/design";

import contentPublisher from "./intents/content_publisher";
import designEditor from "./intents/design_editor";

prepareContentPublisher(contentPublisher);
prepareDesignEditor(designEditor);

// For usage information, see the README.md file.
import type {
  ContentPublisherIntent,
  GetPublishConfigurationResponse,
  PublishContentRequest,
  PublishContentResponse,
  RenderPreviewUiRequest,
  RenderSettingsUiRequest,
} from "@canva/intents/content";
import { createRoot } from "react-dom/client";
import "@canva/app-ui-kit/styles.css";
import { AppUiProvider, Box, Button } from "@canva/app-ui-kit";
import { Rows, Text } from "@canva/app-ui-kit";
import * as styles from "styles/components.css";
import { requestOpenExternalUrl } from "@canva/platform";

// This example demonstrates how multiple intents can be implemented within a single Canva app.
// For a more detailed example of the Content Publisher Intent, refer to the content_publisher_intent example.

// Define the output types (publishing formats) available to users
// Canva automatically displays a dropdown selector when more than one output type is defined
async function getPublishConfiguration(): Promise<GetPublishConfigurationResponse> {
  return {
    status: "completed",
    outputTypes: [
      {
        id: "post",
        displayName: "Output type: Post",
        mediaSlots: [
          {
            id: "media",
            displayName: "Media",
            fileCount: { exact: 1 },
            accepts: {
              image: {
                format: "png",
                // Social media post aspect ratio range (portrait to landscape)
                aspectRatio: { min: 4 / 5, max: 1.91 / 1 },
              },
            },
          },
        ],
      },
    ],
  };
}

// Render the settings UI where users configure publishing options
function renderSettingsUi(request: RenderSettingsUiRequest) {
  const root = createRoot(document.getElementById("root") as Element);

  const openDocs = async () => {
    await requestOpenExternalUrl({
      url: "https://www.canva.dev/docs/apps/content-publisher/",
    });
  };

  root.render(
    <AppUiProvider>
      <div className={styles.scrollContainer}>
        <Rows spacing="2u">
          <Text>
            This is the content publisher intent portion of the app. Here you
            would render an interface for controlling the publishing settings.
          </Text>
          <Button variant="primary" onClick={openDocs}>
            Open Content Publisher Intent docs
          </Button>
        </Rows>
      </div>
    </AppUiProvider>,
  );
}
// Render the preview UI showing how the content will appear after publishing
function renderPreviewUi(request: RenderPreviewUiRequest) {
  const root = createRoot(document.getElementById("root") as Element);

  // TODO: You should update this value to match the visuals you're hoping to achieve with your export preview
  // Image width + padding + border
  const previewWidth = 400 + 32 + 2;

  root.render(
    <AppUiProvider>
      <Box
        display="flex"
        alignItems="center"
        justifyContent="center"
        flexDirection="column"
        width="full"
        height="full"
      >
        <div style={{ width: previewWidth }}>
          <Box
            display="flex"
            alignItems="center"
            justifyContent="center"
            background="surface"
            borderRadius="large"
            padding="2u"
            border="standard"
          >
            <Rows spacing="2u">
              <Text>
                This is the content publisher intent portion of the app. Here
                you would render a preview for visualizing how the design would
                appear in the publishing platform.
              </Text>
            </Rows>
          </Box>
        </div>
      </Box>
    </AppUiProvider>,
  );
}

// Handle the actual publishing when the user clicks the publish button
// In production, this should make API calls to your platform
async function publishContent(
  request: PublishContentRequest,
): Promise<PublishContentResponse> {
  // Replace this with your actual API integration
  // Example: Upload media to your platform and create a post
  // const uploadedMedia = await uploadToYourPlatform(params.outputMedia);
  // const post = await createPostOnYourPlatform({
  //   media: uploadedMedia,
  //   caption: JSON.parse(params.publishRef).caption
  // });

  return {
    status: "completed",
    externalId: "1234567890", // Your platform's unique identifier for this post
    externalUrl: "https://example.com/posts/1234567890", // Link to view the published content
  };
}

const contentPublisher: ContentPublisherIntent = {
  renderSettingsUi,
  renderPreviewUi,
  getPublishConfiguration,
  publishContent,
};

export default contentPublisher;

import "@canva/app-ui-kit/styles.css";
import type { DesignEditorIntent } from "@canva/intents/design";
import { AppUiProvider } from "@canva/app-ui-kit";
import { createRoot } from "react-dom/client";
import { Button, Rows, Text } from "@canva/app-ui-kit";
import { requestOpenExternalUrl } from "@canva/platform";
import * as styles from "styles/components.css";

// This example demonstrates how multiple intents can be implemented within a single Canva app.
// For a more detailed example of the Design Editor Intent and all its capabilities, refer to other app examples in this starter kit.
async function render() {
  const root = createRoot(document.getElementById("root") as Element);

  const openDocs = async () => {
    await requestOpenExternalUrl({
      url: "https://www.canva.dev/docs/apps/design-editor/",
    });
  };

  // Render the design editor intent UI
  // This is a simple example to demonstrate how multiple intents can be implemented in the same app.
  root.render(
    <AppUiProvider>
      <div className={styles.scrollContainer}>
        <Rows spacing="2u">
          <Text>This is the design editor intent portion of the app.</Text>
          <Button variant="primary" onClick={openDocs}>
            Open Design Editor Intent docs
          </Button>
        </Rows>
      </div>
    </AppUiProvider>,
  );
}

const designEditor: DesignEditorIntent = { render };
export default designEditor;

# Implement Multiple intents

This example demonstrates how to structure an app to implement multiple intents in the same code. The app is a combination of the design editor starter example and the content publisher example.

This example demonstrates our recommeneded code structure for multiple intent apps. The root index file `src/index.tsx` calls the prepare function for each implemented intent.

There's a `src/intents` folder, and within this folder there's one folder for each implemented intent. The index file of these folders implements the intent contract.

For example, `src/index.tsx` calls `prepareDesignEditor` with the `DesignEditorIntent` implementation imported from `src/intents/design_editor/index.tsx`, and calls `prepareContentPublisher` with the `ContentPublisherIntent` implementation imported from `src/intents/content_publisher/index.tsx`.

This example has a `canva-app.json` app config file with both intents enrolled.

For API reference docs and instructions on running this example, see: <https://www.canva.dev/docs/apps/examples/multiple-intents/>.

NOTE: This example differs from what is expected for public apps to pass a Canva review:

- Error handling is simplified for demonstration. Production apps must implement comprehensive error handling with clear user feedback and graceful failure modes
- Accessibility features aren't fully implemented. Production apps must meet WCAG 2.0 AA standards with proper keyboard navigation and ARIA labels
- Internationalization is not implemented. Production apps must support multiple languages using the `@canva/app-i18n-kit` package to pass Canva review requirements