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helloworld.html
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helloworld.html
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<!--
Copyright 2018 Google LLC
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
https://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<!-- [START picker_hello_world] -->
<!DOCTYPE html>
<html>
<head>
<title>Picker API Quickstart</title>
<meta charset="utf-8" />
</head>
<body>
<p>Picker API API Quickstart</p>
<!--Add buttons to initiate auth sequence and sign out-->
<button id="authorize_button" onclick="handleAuthClick()">Authorize</button>
<button id="signout_button" onclick="handleSignoutClick()">Sign Out</button>
<pre id="content" style="white-space: pre-wrap;"></pre>
<script type="text/javascript">
/* exported gapiLoaded */
/* exported gisLoaded */
/* exported handleAuthClick */
/* exported handleSignoutClick */
// Authorization scopes required by the API; multiple scopes can be
// included, separated by spaces.
const SCOPES = 'https://www.googleapis.com/auth/drive.metadata.readonly';
// TODO(developer): Set to client ID and API key from the Developer Console
const CLIENT_ID = '<YOUR_CLIENT_ID>';
const API_KEY = '<YOUR_API_KEY>';
// TODO(developer): Replace with your own project number from console.developers.google.com.
const APP_ID = '<YOUR_APP_ID>';
let tokenClient;
let accessToken = null;
let pickerInited = false;
let gisInited = false;
document.getElementById('authorize_button').style.visibility = 'hidden';
document.getElementById('signout_button').style.visibility = 'hidden';
/**
* Callback after api.js is loaded.
*/
function gapiLoaded() {
gapi.load('client:picker', initializePicker);
}
/**
* Callback after the API client is loaded. Loads the
* discovery doc to initialize the API.
*/
async function initializePicker() {
await gapi.client.load('https://www.googleapis.com/discovery/v1/apis/drive/v3/rest');
pickerInited = true;
maybeEnableButtons();
}
/**
* Callback after Google Identity Services are loaded.
*/
function gisLoaded() {
tokenClient = google.accounts.oauth2.initTokenClient({
client_id: CLIENT_ID,
scope: SCOPES,
callback: '', // defined later
});
gisInited = true;
maybeEnableButtons();
}
/**
* Enables user interaction after all libraries are loaded.
*/
function maybeEnableButtons() {
if (pickerInited && gisInited) {
document.getElementById('authorize_button').style.visibility = 'visible';
}
}
/**
* Sign in the user upon button click.
*/
function handleAuthClick() {
tokenClient.callback = async (response) => {
if (response.error !== undefined) {
throw (response);
}
accessToken = response.access_token;
document.getElementById('signout_button').style.visibility = 'visible';
document.getElementById('authorize_button').innerText = 'Refresh';
await createPicker();
};
if (accessToken === null) {
// Prompt the user to select a Google Account and ask for consent to share their data
// when establishing a new session.
tokenClient.requestAccessToken({prompt: 'consent'});
} else {
// Skip display of account chooser and consent dialog for an existing session.
tokenClient.requestAccessToken({prompt: ''});
}
}
/**
* Sign out the user upon button click.
*/
function handleSignoutClick() {
if (accessToken) {
accessToken = null;
google.accounts.oauth2.revoke(accessToken);
document.getElementById('content').innerText = '';
document.getElementById('authorize_button').innerText = 'Authorize';
document.getElementById('signout_button').style.visibility = 'hidden';
}
}
/**
* Create and render a Picker object for searching images.
*/
function createPicker() {
const view = new google.picker.View(google.picker.ViewId.DOCS);
view.setMimeTypes('image/png,image/jpeg,image/jpg');
const picker = new google.picker.PickerBuilder()
.enableFeature(google.picker.Feature.NAV_HIDDEN)
.enableFeature(google.picker.Feature.MULTISELECT_ENABLED)
.setDeveloperKey(API_KEY)
.setAppId(APP_ID)
.setOAuthToken(accessToken)
.addView(view)
.addView(new google.picker.DocsUploadView())
.setCallback(pickerCallback)
.build();
picker.setVisible(true);
}
/**
* Displays the file details of the user's selection.
* @param {object} data - Containers the user selection from the picker
*/
async function pickerCallback(data) {
if (data.action === google.picker.Action.PICKED) {
let text = `Picker response: \n${JSON.stringify(data, null, 2)}\n`;
const document = data[google.picker.Response.DOCUMENTS][0];
const fileId = document[google.picker.Document.ID];
console.log(fileId);
const res = await gapi.client.drive.files.get({
'fileId': fileId,
'fields': '*',
});
text += `Drive API response for first document: \n${JSON.stringify(res.result, null, 2)}\n`;
window.document.getElementById('content').innerText = text;
}
}
</script>
<script async defer src="https://apis.google.com/js/api.js" onload="gapiLoaded()"></script>
<script async defer src="https://accounts.google.com/gsi/client" onload="gisLoaded()"></script>
</body>
</html>
<!-- [END picker_hello_world] -->