Drag to Undo/Redo a Digital Ink Canvas Using a Visible History Palette

A system implemented in a collaborative environment in which multiple appliances can share a common network connection to participate in a collaboration in which assets can be shared amongst the multiple appliances, the system comprising:

• a first appliance;
• one or more processors associated with the first appliance;
• one or more computer-readable media storing computer-executable instructions which, when executed by the one or more processors implement an undo/redo module configured to perform operations comprising:
• displaying, on a digital ink canvas on the first appliance that is taking part in a collaboration with one or more other appliances in which assets can be shared amongst the appliances, a history palette that provides a navigable user interface, the history palette comprising a plurality of history entries that provide respective visual representations of different states of the digital ink canvas, wherein selection of a history entry causes a corresponding visual representation to be rendered on the digital ink canvas, wherein the digital ink canvas accepts user input to render a visible digital stroke, and wherein content of the history palette, including selection of a visual representation of a history entry, is configured to be shared with said one or more other appliances in the collaboration, wherein the history palette is configured to include individual history entries that show states across multiple different types of applications with which one or more presenters may interact;
• receiving, with the first appliance, user input sufficient to cause the history palette to be navigated to a selected visual representation;
• and
• responsive to navigating to the selected visual representation of a history entry, rendering content associated with the selected visual representation on the digital ink canvas and causing content associated with the selected visual representation of the history entry to be shared with said one or more other appliances.

One or more non-transitory computer-readable media storing computer-executable instructions which, when executed by the one or more processors, perform operations comprising:

• participating, by a first appliance, in a collaboration with one or more other appliances, said participating taking place via one or more networks that enable said appliance and said one or more other appliances to share assets, said first appliance comprising a digital ink canvas that accepts user input to render a visible digital stroke;
• and
• displaying, on the digital ink canvas, a history palette that provides a navigable user interface, the history palette comprising a plurality of history entries that provide respective visual representations of different states of the digital ink canvas, at least some visual representations including respective individual digital strokes that have been rendered on the digital ink canvas in chronological order in which the individual digital strokes were rendered on the digital ink canvas, wherein the history palette is configured to include individual history entries that show states across multiple different types of applications with which one or more presenters may interact;
• wherein selection of a history entry causes a corresponding visual representation to be rendered on the digital ink canvas, and for the selected history entry selection to be shared with said one or more other appliances sufficient to cause content associated with said selected history entry to be rendered on corresponding respective digital ink canvasses on said one or more other appliances and
• wherein content of the history palette is shared with said one or more other appliances in the collaboration.