external atom WebStudioCanvas id "atom:org.quixos.web-studio:canvas";
external atom WebStudioCanvasPlacement id "atom:org.quixos.web-studio:canvas-placement";
external interface WebStudioCanvasInterface revision "interface:org.quixos.web-studio.canvas@1";
external interface WebStudioPlaceable revision "interface:org.quixos.web-studio.placeable@1";

package WebStudioCanvasRuntime id "package:org.quixos.web-studio:canvas-runtime" revision "package:org.quixos.web-studio:canvas-runtime@1" {
  constructor createCanvas id "export:org.quixos.web-studio.canvas-runtime:create-canvas" constructs WebStudioCanvas : unit;
  constructor createPlacement id "export:org.quixos.web-studio.canvas-runtime:create-placement" constructs WebStudioCanvasPlacement : message "org.quixos.web-studio.CreateCanvasPlacement" requires {
    state position id "port:web-studio-placement-constructor:position" : message "org.quixos.web-studio.CanvasPosition" [write];
    state size id "port:web-studio-placement-constructor:size" : message "org.quixos.web-studio.CanvasSize" [write];
    state z id "port:web-studio-placement-constructor:z" : int32 [write];
    edge canvas id "port:web-studio-placement-constructor:canvas" : exactly-one interface WebStudioCanvasInterface [connect];
    edge subject id "port:web-studio-placement-constructor:subject" : exactly-one interface WebStudioPlaceable [connect];
  };
}