merge: Add PatternFly 4 web interface (#161)

This pull requests adds the new web interface based on the PatternFly 4 design framework.
This framework enables us to develop more quickly the interfaces necessary in OpenDC. 

* Remove the OpenDC landing page from the web interface module
* Add support for the PatternFly 4 framework in Next.js
* Relax topology schema requirements
* Migrate UI components to PatternFly 4

1 files changed, 54 insertions, 0 deletions

diff --git a/opendc-web/opendc-web-ui/src/components/app/map/layers/ObjectHoverLayer.js b/opendc-web/opendc-web-ui/src/components/app/map/layers/ObjectHoverLayer.js
new file mode 100644
index 00000000..9a087bd5
--- /dev/null
+++ b/opendc-web/opendc-web-ui/src/components/app/map/layers/ObjectHoverLayer.js
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2021 AtLarge Research
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+import React from 'react'
+import { useDispatch, useSelector } from 'react-redux'
+import { addRackToTile } from '../../../../redux/actions/topology/room'
+import ObjectHoverLayerComponent from '../../../../components/app/map/layers/ObjectHoverLayerComponent'
+import { findTileWithPosition } from '../../../../util/tile-calculations'
+
+const ObjectHoverLayer = (props) => {
+    const state = useSelector((state) => {
+        return {
+            mapPosition: state.map.position,
+            mapScale: state.map.scale,
+            isEnabled: () => state.construction.inRackConstructionMode,
+            isValid: (x, y) => {
+                if (state.interactionLevel.mode !== 'ROOM') {
+                    return false
+                }
+
+                const currentRoom = state.objects.room[state.interactionLevel.roomId]
+                const tiles = currentRoom.tiles.map((tileId) => state.objects.tile[tileId])
+                const tile = findTileWithPosition(tiles, x, y)
+
+                return !(tile === null || tile.rack)
+            },
+        }
+    })
+
+    const dispatch = useDispatch()
+    const onClick = (x, y) => dispatch(addRackToTile(x, y))
+    return <ObjectHoverLayerComponent {...props} {...state} onClick={onClick} />
+}
+
+export default ObjectHoverLayer