Crea e gestisci presentazioni

Questa pagina descrive come eseguire determinate attività di alto livello che riguardano le presentazioni, ad esempio:

  • Creare una presentazione
  • Copiare un file di presentazione esistente

I paragrafi che seguono descrivono queste attività nel dettaglio.

Creare una presentazione vuota

Per creare una presentazione, utilizza il metodo create nella raccolta presentations, come mostrato nell'esempio seguente.

Questo esempio crea una presentazione vuota con un titolo specificato.

Apps Script

slides/api/Snippets.gs
/**
 * Creates a presentation
 * @returns {*} the created presentation
 */
function createPresentation() {
  try {
    const presentation = Slides.Presentations.create({
      title: title
    });
    console.log('Created presentation with ID: %s', presentation.presentationId);

    return presentation;
  } catch (err) {
    // TODO (Developer) - Handle exception
    console.log('Failed with error: %s', err.error);
  }
};

Vai

slides/snippets/presentations.go
// Create a presentation and request a PresentationId.
p := &slides.Presentation{
	Title: "Title",
}
presentation, err := slidesService.Presentations.Create(p).Fields(
	"presentationId",
).Do()
if err != nil {
	log.Fatalf("Unable to create presentation. %v", err)
}
fmt.Printf("Created presentation with ID: %s", presentation.PresentationId)

Java

slides/snippets/src/main/java/CreatePresentation.java
import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.slides.v1.Slides;
import com.google.api.services.slides.v1.SlidesScopes;
import com.google.api.services.slides.v1.model.Presentation;
import com.google.auth.http.HttpCredentialsAdapter;
import com.google.auth.oauth2.GoogleCredentials;

import java.io.IOException;
import java.util.Collections;

/* Class to demonstrate the use of Slides Create Presentation API */
public class CreatePresentation {
  /**
   * Creates a new presentation.
   *
   * @param title - the name of the presentation to be created
   * @return presentation id
   * @throws IOException - if credentials file not found.
   */
  public static String createPresentation(String title) throws IOException {
        /* Load pre-authorized user credentials from the environment.
           TODO(developer) - See https://developers.google.com/identity for
            guides on implementing OAuth2 for your application. */
    GoogleCredentials credentials = GoogleCredentials.getApplicationDefault()
        .createScoped(Collections.singleton(SlidesScopes.PRESENTATIONS));
    HttpRequestInitializer requestInitializer = new HttpCredentialsAdapter(
        credentials);

    // Create the slides API client
    Slides service = new Slides.Builder(new NetHttpTransport(),
        GsonFactory.getDefaultInstance(),
        requestInitializer)
        .setApplicationName("Slides samples")
        .build();

    // Creates a blank presentation with a specified title.
    Presentation presentation = new Presentation()
        .setTitle(title);
    presentation = service.presentations().create(presentation)
        .setFields("presentationId")
        .execute();
    // Prints the newly created presentation id.
    System.out.println("Created presentation with ID: " + presentation.getPresentationId());
    return presentation.getPresentationId();
  }
}

JavaScript

slides/snippets/slides_create_presentation.js
function createPresentation(title, callback) {
  try {
    gapi.client.slides.presentations.create({
      title: title,
    }).then((response) => {
      console.log(`Created presentation with ID: ${response.result.presentationId}`);
      if (callback) callback(response);
    });
  } catch (err) {
    document.getElementById('content').innerText = err.message;
    return;
  }
}

Node.js

slides/snippets/slides_create_presentation.js
/**
 * Creates a Google Slide presentation.
 * @param {string} title The presentation title.
 */
async function createPresentation(title) {
  const {GoogleAuth} = require('google-auth-library');
  const {google} = require('googleapis');

  const auth = new GoogleAuth({
    scopes: 'https://www.googleapis.com/auth/presentations',
  });

  const service = google.slides({version: 'v1', auth});
  try {
    const presentation = await service.presentations.create({
      title,
    });
    console.log(
        `Created presentation with ID: ${presentation.data.presentationId}`,
    );
    return presentation;
  } catch (err) {
    // TODO (developer) - Handle exception
    throw err;
  }
}

PHP

slides/snippets/src/SlidesCreatePresentation.php
<?php
use Google\Client;
use Google\Service\Drive;
use Google\Service\Slides;
use Google\Service\Slides\Request;

function createPresentation($title)
{
    /* Load pre-authorized user credentials from the environment.
       TODO(developer) - See https://developers.google.com/identity for
        guides on implementing OAuth2 for your application. */
    $client = new Google\Client();
    $client->useApplicationDefaultCredentials();
    $client->addScope(Google\Service\Drive::DRIVE);
    $service = new Google_Service_Slides($client);
    try {
        $presentation = new Google_Service_Slides_Presentation($title);
        //creating a presentation
        $presentation = $service->presentations->create($presentation);
        printf("Created presentation with ID: %s\n", $presentation->presentationId);
        return $presentation;
    } catch (Exception $e) {
        echo 'Message: ' . $e->getMessage();
    }
}

Python

slides/snippets/slides_create_presentation.py
import google.auth
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError


def create_presentation(title):
  """
  Creates the Presentation the user has access to.
  Load pre-authorized user credentials from the environment.
  TODO(developer) - See https://developers.google.com/identity
  for guides on implementing OAuth2 for the application.
  """
  creds, _ = google.auth.default()
  # pylint: disable=maybe-no-member
  try:
    service = build("slides", "v1", credentials=creds)

    body = {"title": title}
    presentation = service.presentations().create(body=body).execute()
    print(
        f"Created presentation with ID:{(presentation.get('presentationId'))}"
    )
    return presentation

  except HttpError as error:
    print(f"An error occurred: {error}")
    print("presentation not created")
    return error


if __name__ == "__main__":
  # Put the title of the presentation

  create_presentation("finalp")

Ruby

slides/snippets/lib/file_snippets.rb
body = Google::Apis::SlidesV1::Presentation.new
body.title = title
presentation = slides_service.create_presentation(body)
puts "Created presentation with ID: #{presentation.presentation_id}"

Lavorare con le cartelle di Google Drive

Non esiste alcuna opzione per creare una presentazione direttamente all'interno di una cartella Drive specificata utilizzando l'API Google Slides. Per impostazione predefinita, il file creato viene salvato nella cartella principale dell'utente su Drive.

Tuttavia, esistono due alternative al salvataggio di un file in una cartella di Drive:

  • Dopo aver creato il file, spostalo in una cartella specifica utilizzando il metodo files.update dell'API Drive. Per ulteriori informazioni sullo spostamento dei file, vedi Spostare i file tra le cartelle.
  • Aggiungi una presentazione vuota a una cartella utilizzando il metodo files.create dell'API Drive, specificando application/vnd.google-apps.presentation come mimeType. Per ulteriori informazioni sulla creazione di file, consulta Creare un file in una cartella.

Per entrambe le alternative, devi aggiungere gli ambiti dell'API Drive appropriati per autorizzare la chiamata.

Per spostare o creare un file all'interno di una cartella del Drive condiviso, consulta Implementare il supporto del Drive condiviso.

Copiare un file di presentazione esistente

Per copiare una presentazione, utilizza il metodo files().copy dell'API Drive.

L'esempio seguente copia una presentazione esistente utilizzando una stringa fornita sia per il titolo della presentazione sia per il nome del nuovo file di Drive.

Apps Script

slides/api/Snippets.gs
/**
 * create a presentation and copy it
 * @param {string} presentationId - ID of presentation to copy
 * @returns {*} the copy's presentation id
 */
function copyPresentation(presentationId) {
  const copyTitle = 'Copy Title';

  let copyFile = {
    title: copyTitle,
    parents: [{id: 'root'}]
  };
  try {
    copyFile = Drive.Files.copy(copyFile, presentationId);
    // (optional) copyFile.id can be returned directly
    const presentationCopyId = copyFile.id;

    return presentationCopyId;
  } catch (err) {
    // TODO (Developer) - Handle exception
    console.log('Failed with error: %s', err.error);
  }
};

Vai

slides/snippets/presentations.go
// Copy a presentation.
file := drive.File{
	Title: title,
}
presentationCopyFile, err := driveService.Files.Copy(id, &file).Do()
if err != nil {
	log.Fatalf("Unable to copy presentation. %v", err)
}
presentationCopyId := presentationCopyFile.Id

Java

slides/snippets/src/main/java/CopyPresentation.java
import com.google.api.client.googleapis.json.GoogleJsonError;
import com.google.api.client.googleapis.json.GoogleJsonResponseException;
import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.drive.Drive;
import com.google.api.services.drive.model.File;
import com.google.api.services.slides.v1.SlidesScopes;
import com.google.auth.http.HttpCredentialsAdapter;
import com.google.auth.oauth2.GoogleCredentials;

import java.io.IOException;
import java.util.Collections;

/* Class to demonstrate the use of Slides Copy Presentation API */
public class CopyPresentation {
  /**
   * Copy an existing presentation.
   *
   * @param presentationId - id of the presentation.
   * @param copyTitle      - New title of the presentation.
   * @return presentation id
   * @throws IOException - if credentials file not found.
   */
  public static String copyPresentation(String presentationId, String copyTitle)
      throws IOException {
        /* Load pre-authorized user credentials from the environment.
           TODO(developer) - See https://developers.google.com/identity for
            guides on implementing OAuth2 for your application. */
    GoogleCredentials credentials = GoogleCredentials.getApplicationDefault()
        .createScoped(Collections.singleton(SlidesScopes.DRIVE));
    HttpRequestInitializer requestInitializer = new HttpCredentialsAdapter(
        credentials);

    // Create the drive API client
    Drive driveService = new Drive.Builder(new NetHttpTransport(),
        GsonFactory.getDefaultInstance(),
        requestInitializer)
        .setApplicationName("Slides samples")
        .build();

    String presentationCopyId = null;
    try {
      // Copies an existing presentation using specified presentation title.
      File copyMetadata = new File().setName(copyTitle);
      File presentationCopyFile =
          driveService.files().copy(presentationId, copyMetadata).execute();
      presentationCopyId = presentationCopyFile.getId();
      // Prints the new copied presentation id.
      System.out.println("New copied presentation id " + presentationCopyId);
    } catch (GoogleJsonResponseException e) {
      // TODO(developer) - handle error appropriately
      GoogleJsonError error = e.getDetails();
      if (error.getCode() == 404) {
        System.out.printf("Presentation not found with id '%s'.\n", presentationId);
      } else {
        throw e;
      }
    }
    return presentationCopyId;
  }
}

JavaScript

slides/snippets/slides_copy_presentation.js
function copyPresentation(presentationId, copyTitle, callback) {
  const request = {
    name: copyTitle,
  };
  try {
    gapi.client.drive.files.copy({
      fileId: presentationId,
      resource: request,
    }).then((driveResponse) => {
      const presentationCopyId = driveResponse.result.id;
      if (callback) callback(presentationCopyId);
      console.log('create copy_presentation with id', presentationCopyId);
    });
  } catch (err) {
    document.getElementById('content').innerText = err.message;
    return;
  }
}

Node.js

slides/snippets/slides_copy_presentation.js
/**
 * Copys a Google Slide presentation.
 * @param {string} presentationId The presentation to copy.
 * @param {string} copyTitle The new title.
 */
async function copyPresentation(presentationId, copyTitle) {
  const {GoogleAuth} = require('google-auth-library');
  const {google} = require('googleapis');

  const auth = new GoogleAuth({
    scopes: 'https://www.googleapis.com/auth/drive',
  });

  const service = google.drive({version: 'v2', auth});
  const request = {
    name: copyTitle,
  };

  try {
    const driveResponse = await service.files.copy({
      fileId: presentationId,
      resource: request,
    });
    const presentationCopyId = driveResponse.data.id;
    console.log('Created copied presentation with ID: ' + presentationCopyId);
    return driveResponse;
  } catch (err) {
    // TODO (developer) - handle exception
    throw err;
  }
}

PHP

slides/snippets/src/SlidesCopyPresentation.php
<?php

use Google\Service\Drive;
use Google\Client;
use Google\Service\Drive\DriveFile;



function copyPresentation($presentationId, $copyTitle)
{
    /* Load pre-authorized user credentials from the environment.
   TODO(developer) - See https://developers.google.com/identity for
    guides on implementing OAuth2 for your application. */
    $client = new Google\Client();
    $client->useApplicationDefaultCredentials();
    $client->addScope(Google\Service\Drive::DRIVE);
    $driveService = new Google_Service_Drive($client);
    try {

        $copy = new Google_Service_Drive_DriveFile(array(
            'name' => $copyTitle
        ));
        $driveResponse = $driveService->files->copy($presentationId, $copy);
        $presentationCopyId = $driveResponse->id;
        printf("copyCreated at:%s\n ", $presentationCopyId);
        return $presentationCopyId;
    } catch (Exception $e) {
        echo 'Message: ' . $e->getMessage();
    }
}

Python

slides/snippets/slides_copy_presentation.py
import google.auth
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError


def copy_presentation(presentation_id, copy_title):
  """
  Creates the copy Presentation the user has access to.
  Load pre-authorized user credentials from the environment.
  TODO(developer) - See https://developers.google.com/identity
  for guides on implementing OAuth2 for the application.
  """

  creds, _ = google.auth.default()
  # pylint: disable=maybe-no-member
  try:
    drive_service = build("drive", "v3", credentials=creds)
    body = {"name": copy_title}
    drive_response = (
        drive_service.files().copy(fileId=presentation_id, body=body).execute()
    )
    presentation_copy_id = drive_response.get("id")

  except HttpError as error:
    print(f"An error occurred: {error}")
    print("Presentations  not copied")
    return error

  return presentation_copy_id

Ruby

slides/snippets/lib/file_snippets.rb
body = Google::Apis::SlidesV1::Presentation.new
body.title = copy_title
drive_response = drive_service.copy_file(presentation_id, body)
puts drive_response
presentation_copy_id = drive_response.id

Tieni presente che devi utilizzare un ambito API Drive appropriato per autorizzare la chiamata.