Abstract: Implementations relate to sharing user activity data with other users. In some implementations, a method includes evaluating one or more actions of a second user to detect that the second user is interested in one or more attributes of one or more activities performed by a first user and described in activity data of the first user. A request is provided to the first user to share at least a portion of the activity data with the second user. The method receives, in response to the request, an indication from the first user to share a designated portion of the activity data with the second user. The method causes the activity data to be made accessible to the second user, and provides information for presentation via a device to the second user, where the presented information is derived from the shared portion of the activity data.

Abstract: A system including a processor and a memory storing instructions that, when executed, cause the system to: generate a dynamic object having rich content, interactive code and multiple platform operability logic that allows the interactive code to operate on a plurality of platforms; send the dynamic object to one of the plurality of platforms; process the dynamic object on the one of the plurality of platforms; and provide one or more interfaces for user engagement to perform an interaction specified by the dynamic object.

Abstract: A system for generating and providing an inline resharing interface and sharing content includes a processor and a memory storing instructions that, when executed, cause the system to provide items of content for presentation; receive input identifying a selected item from the items of content; generate an inline sharing interface corresponding to the selected item, the inline sharing interface including a portion of original content from the selected item, an comment area, and an addressee area; and provide the inline sharing interface for presentation in place of the selected item.

Abstract: A system including a processor and a memory storing instructions that, when executed, cause the system to: generate a dynamic object having rich content, interactive code and multiple platform operability logic that allows the interactive code to operate on a plurality of platforms; send the dynamic object to one of the plurality of platforms; process the dynamic object on the one of the plurality of platforms; and provide one or more interfaces for user engagement to perform an interaction specified by the dynamic object.

Abstract: A system for supplementing items in an activity stream provides an item for display in an activity stream on a client device. The system also generates an interactive element based on a type of the client device, where the interactive element includes context information about the item. The system also arranges a user selectable control within the interactive element based on a type of the item, where the user selectable control is configured to initiate a response to the item. The system also provides the interactive element for display in association with the item in the activity stream on the client device.

Abstract: A system and method for per-client, per-type customizations to posts in an activity stream comprises an extraction pipeline and a rendering pipeline. The extraction pipeline can include a library of embedded code, data type taxonomy and an embed converter. The data type taxonomy is coupled to an activity source to receive activity information, and to produce a first protocol buffer. The embed converter produces a type-specific protocol buffer from the first protocol buffer and embedded code based in part upon the type of activity and the type of client. The type-specific protocol buffer is provided to the client to process activity information or present activity information. The disclosure also includes a method for processing a post in an activity stream on a per-client, per-type basis.

Abstract: An extension system for rendering custom posts in the activity stream comprises an activity streams front end, an activity streams backend and a custom template storage. The activity streams backend is communicatively coupled to receive activity information from activity sources. Clients send custom metadata to the activity streams backend, including a key for decoding and rendering the proper templates and associated scripts on the activity streams frontend. The activity streams backend encodes this custom key and metadata as part of the activity information. The activity streams front end retrieves the encoded information and decodes the encoded information to produce data and a type. From the type, the activity streams front end accesses the custom template storage to determine the associated custom template and JavaScript. The activity streams front end cooperates with the client to use the data, custom template and JavaScript to render the activity information at the client device.

Abstract: A plurality of content items for a content stream is determined by a system. The system estimates size dimensions for the content items, and determines a multidimensional layout by placing the content items into two or more adjacent containers based on the size dimensions. The system determines a difference in size between the two or more adjacent containers and adjusts an aspect of one or more of the content items to substantially equalize a size of the two or more containers.