Add support for card-level selectActions

[tongyliu]

Implementation status

• JavaScript (available with the Outlook container in the visualizer)
• UWP ([UWP] Add support for card-level selectActions #1346)
• .NET ([.NET] Add support for card-level selectActions #1349)
• iOS ([iOS] Add support for card-level selectActions #1347)
• Android ([Android] Add support for card-level selectActions #1348)
• Documentation

The Problem

Currently, in order to have the entire card be a click target for some action, the card's contents must be wrapped in a container with the selectAction. This is cumbersome for card authors and also breaks full-bleed background images in some renderers.

Proposed Solution

Add a new selectAction field to the top-level AdaptiveCard schema. This field will be identical in type to the existing selectAction fields on containers.

{
    "$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
    "type": "AdaptiveCard",
    "version": "1.x",
    "body": [
        {
            "type": "TextBlock",
            "text": "This is some text"
        }
    ],
    "selectAction": {
        "type": "Action.OpenUrl",
        "title": "cool link",
        "url": "https://www.youtube.com/watch?v=dQw4w9WgXcQ"
    }
}

[matthidinger]

Thanks @tongyliu, this is a good candidate for the next major schema rev.

[tuanh118]

Is there any spec on card's look on mouse hover? Should it change background color and/or border color?

[tuanh118]

Also, do we want to support all 3 types of actions (OpenUrl, Submit, and ShowCard) ? I think only the OpenUrl action makes sense. But in case we want to support more, we might need to discuss more on action trigger's behavior.

[khouzam]

This has been completed.