main.qml Example File

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  import QtQml 2.2
  import QtQuick 2.0
  import QtQuick.Window 2.3 as Window
  import QtWayland.Compositor 1.0
  import QtQml.Models 2.1

  WaylandCompositor {
      id: comp

      ListModel {
          id: emulatedScreens
          ListElement { name: "left";   virtualX: 0;    virtualY: 0; width: 800; height: 600 }
          ListElement { name: "middle"; virtualX: 800;  virtualY: 0; width: 800; height: 600 }
          ListElement { name: "right";  virtualX: 1600; virtualY: 0; width: 800; height: 600 }
      }

      property bool emulated: Qt.application.screens.length < 2

      Instantiator {
          id: screens
          model: emulated ? emulatedScreens : Qt.application.screens

          delegate: Screen {
              surfaceArea.color: "lightsteelblue"
              text: name
              compositor: comp
              screen: modelData
              Component.onCompleted: if (!comp.defaultOutput) comp.defaultOutput = this
              position: Qt.point(virtualX, virtualY)
              windowed: emulated
          }
      }

      Component {
          id: chromeComponent
          Chrome {}
      }

      Component {
          id: moveItemComponent
          Item {}
      }

      Item {
          id: rootItem
      }

      WlShell {
          onWlShellSurfaceCreated: handleShellSurfaceCreated(shellSurface)
      }

      XdgShellV5 {
          onXdgSurfaceCreated: handleShellSurfaceCreated(xdgSurface)
          onXdgPopupCreated: handleShellSurfaceCreated(xdgPopup)
      }

      function createShellSurfaceItem(shellSurface, moveItem, output) {
          var parentSurfaceItem = output.viewsBySurface[shellSurface.parentSurface];
          var parent = parentSurfaceItem || output.surfaceArea;
          var item = chromeComponent.createObject(parent, {
              "shellSurface": shellSurface,
              "moveItem": moveItem,
              "output": output
          });
          if (parentSurfaceItem) {
              item.x += output.position.x;
              item.y += output.position.y;
          }
          output.viewsBySurface[shellSurface.surface] = item;
      }

      function handleShellSurfaceCreated(shellSurface) {
          var moveItem = moveItemComponent.createObject(rootItem, {
              "x": screens.objectAt(0).position.x,
              "y": screens.objectAt(0).position.y,
              "width": Qt.binding(function() { return shellSurface.surface.width; }),
              "height": Qt.binding(function() { return shellSurface.surface.height; })
          });
          for (var i = 0; i < screens.count; ++i)
              createShellSurfaceItem(shellSurface, moveItem, screens.objectAt(i));
      }
  }