Class Button

A base class for all buttons.

Available for Google Workspace Add-ons and Google Chat apps.

Methods

Method	Return type	Brief description
`setAuthorizationAction(action)`	`Button`	Sets an authorization action that opens a URL to the authorization flow when the object is clicked.
`setComposeAction(action, composedEmailType)`	`Button`	Sets an action that composes a draft email when the object is clicked.
`setOnClickAction(action)`	`Button`	Sets an action that executes when the object is clicked.
`setOnClickOpenLinkAction(action)`	`Button`	Sets an action that opens a URL in a tab when the object is clicked.
`setOpenLink(openLink)`	`Button`	Sets a URL to be opened when the object is clicked.
`setOverflowMenu(menu)`	`Button`	Sets a pop-up menu to be opened when the object is clicked.

Detailed documentation

`setAuthorizationAction(action)`

Sets an authorization action that opens a URL to the authorization flow when the object is clicked. This opens the URL in a new window. When the user finishes the authorization flow and returns to the application, the add-on reloads.

A UI object can only have one of setOpenLink(openLink), setOnClickAction(action), setOnClickOpenLinkAction(action), setAuthorizationAction(action), or setComposeAction(action, composedEmailType) set.

// ...

const action = CardService.newAuthorizationAction().setAuthorizationUrl('url');
CardService.newTextButton().setText('Authorize').setAuthorizationAction(action);

Parameters

Name	Type	Description
`action`	`AuthorizationAction`	The object that specifies the authorization action to take when this element is clicked.

Return

Button — This object, for chaining.

`setComposeAction(action, composedEmailType)`

Sets an action that composes a draft email when the object is clicked. A UI object can only have one of setOpenLink(openLink), setOnClickAction(action), setOnClickOpenLinkAction(action), setAuthorizationAction(action), or setComposeAction(action, composedEmailType) set.

The Action parameter must specify a callback function that returns a ComposeActionResponse object configured using ComposeActionResponseBuilder.setGmailDraft(draft).

Note: This method doesn't set a compose action that is used to extend the compose UI. Rather, this method connects this UI element to an Action that composes draft messages in Apps Script that are opened in Gmail when the action completes.

// ...

const action = CardService.newAction().setFunctionName('composeEmailCallback');
CardService.newTextButton()
    .setText('Compose Email')
    .setComposeAction(action, CardService.ComposedEmailType.REPLY_AS_DRAFT);

// ...

function composeEmailCallback() {
  const thread = GmailApp.getThreadById(e.threadId);
  const draft = thread.createDraftReply('This is a reply');
  return CardService.newComposeActionResponseBuilder()
      .setGmailDraft(draft)
      .build();
}

Parameters

Name	Type	Description
`action`	`Action`	The object that specifies the compose action to take when this element is clicked.
`composedEmailType`	`ComposedEmailType`	An enum value that specifies whether the composed draft is a standalone or reply draft.

Return

Button — This object, for chaining.

`setOnClickAction(action)`

Sets an action that executes when the object is clicked. A UI object can only have one of setOpenLink(openLink), setOnClickAction(action), setOnClickOpenLinkAction(action), setAuthorizationAction(action), or setComposeAction(action, composedEmailType) set.

The Action parameter must specify a callback function that returns a ActionResponse object.

// ...

const action = CardService.newAction().setFunctionName('notificationCallback');
CardService.newTextButton()
    .setText('Create notification')
    .setOnClickAction(action);

// ...

function notificationCallback() {
  return CardService.newActionResponseBuilder()
      .setNotification(
          CardService.newNotification().setText('Some info to display to user'),
          )
      .build();
}

Parameters

Name	Type	Description
`action`	`Action`	The action to take when this element is clicked.

Return

Button — This object, for chaining.

`setOnClickOpenLinkAction(action)`

Sets an action that opens a URL in a tab when the object is clicked. Use this function when the URL needs to be built or when you need to take other actions in addition to creating the OpenLink object. A UI object can only have one of setOpenLink(openLink), setOnClickAction(action), setOnClickOpenLinkAction(action), setAuthorizationAction(action), or setComposeAction(action, composedEmailType) set.

The Action parameter must specify a callback function that returns a ActionResponse object configured using ActionResponseBuilder.setOpenLink(openLink).

// ...

const action = CardService.newAction().setFunctionName('openLinkCallback');
CardService.newTextButton()
    .setText('Open Link')
    .setOnClickOpenLinkAction(action);

// ...

function openLinkCallback() {
  return CardService.newActionResponseBuilder()
      .setOpenLink(CardService.newOpenLink().setUrl('https://www.google.com'))
      .build();
}

Parameters

Name	Type	Description
`action`	`Action`	The object that specifies the open link action to take when this element is clicked.

Return

Button — This object, for chaining.

`setOpenLink(openLink)`

Sets a URL to be opened when the object is clicked. Use this function when the URL is already known and only needs to be opened. A UI object can only have one of setOpenLink(openLink), setOnClickAction(action), setOnClickOpenLinkAction(action), setAuthorizationAction(action), or setComposeAction(action, composedEmailType) set.

Parameters

Name	Type	Description
`openLink`	`OpenLink`	An `OpenLink` object describing the URL to open.

Return

Button — This object, for chaining.

`setOverflowMenu(menu)`

Sets a pop-up menu to be opened when the object is clicked. Each item in the menu can specify an action to be triggered when clicked. Nested menus are not supported, actions for menu items should not specify an overflow menu.

Only available for Google Chat apps. Not available for Google Workspace Add-ons.

const overflowMenuItem =
    CardService.newOverflowMenuItem()
        .setStartIcon(
            CardService.newIconImage().setIconUrl(
                'https://www.google.com/images/branding/googleg/1x/googleg_standard_color_64dp.png',
                ),
            )
        .setText('Open Link')
        .setOpenLink(
            CardService.newOpenLink().setUrl('https://www.google.com'));

const overflowMenu =
    CardService.newOverflowMenu().addMenuItem(overflowMenuItem).build();

Parameters

Name	Type	Description
`menu`	`OverflowMenu`	The object that specifies the overflow menu to display when this element is clicked.

Return

Button — This object, for chaining.