merge: Address technical dept in topology view (#162)

This pull request aims to address some of the technical debt in the topology 
view of the OpenDC frontend.

* Add support for panning of the datacenter topology
* Isolate world coordinate space (world objects do not depend on camera scale or position)
* Split transpiled modules into a separate chunk to reduce deduplication
* Encode state in topology actions to reduce global state
* Restructure components per page
* Enable more ESLint rules through `eslint:recommended` ruleset
* Move page components in separate files.

1 files changed, 73 insertions, 0 deletions

diff --git a/opendc-web/opendc-web-ui/src/components/topologies/sidebar/rack/MachineListComponent.js b/opendc-web/opendc-web-ui/src/components/topologies/sidebar/rack/MachineListComponent.js
new file mode 100644
index 00000000..de7a2140
--- /dev/null
+++ b/opendc-web/opendc-web-ui/src/components/topologies/sidebar/rack/MachineListComponent.js
@@ -0,0 +1,73 @@
+import PropTypes from 'prop-types'
+import React from 'react'
+import MachineComponent from './MachineComponent'
+import {
+    Badge,
+    Button,
+    DataList,
+    DataListAction,
+    DataListCell,
+    DataListItem,
+    DataListItemCells,
+    DataListItemRow,
+} from '@patternfly/react-core'
+import { AngleRightIcon, PlusIcon } from '@patternfly/react-icons'
+import { Machine } from '../../../../shapes'
+
+function MachineListComponent({ machines = [], onSelect, onAdd }) {
+    return (
+        <DataList aria-label="Rack Units">
+            {machines.map((machine, index) =>
+                machine ? (
+                    <DataListItem key={index} onClick={() => onSelect(index + 1)}>
+                        <DataListItemRow>
+                            <DataListItemCells
+                                dataListCells={[
+                                    <DataListCell isIcon key="icon">
+                                        <Badge isRead>{machines.length - index}U</Badge>
+                                    </DataListCell>,
+                                    <DataListCell key="primary content">
+                                        <MachineComponent onClick={() => onSelect(index + 1)} machine={machine} />
+                                    </DataListCell>,
+                                ]}
+                            />
+                            <DataListAction id="goto" aria-label="Goto Machine" aria-labelledby="goto">
+                                <Button isSmall variant="plain" className="pf-u-p-0">
+                                    <AngleRightIcon />
+                                </Button>
+                            </DataListAction>
+                        </DataListItemRow>
+                    </DataListItem>
+                ) : (
+                    <DataListItem key={index}>
+                        <DataListItemRow>
+                            <DataListItemCells
+                                dataListCells={[
+                                    <DataListCell isIcon key="icon">
+                                        <Badge isRead>{machines.length - index}U</Badge>
+                                    </DataListCell>,
+                                    <DataListCell key="add" className="text-secondary">
+                                        Empty Slot
+                                    </DataListCell>,
+                                ]}
+                            />
+                            <DataListAction id="add" aria-label="Add Machine" aria-labelledby="add">
+                                <Button isSmall variant="plain" className="pf-u-p-0" onClick={() => onAdd(index + 1)}>
+                                    <PlusIcon />
+                                </Button>
+                            </DataListAction>
+                        </DataListItemRow>
+                    </DataListItem>
+                )
+            )}
+        </DataList>
+    )
+}
+
+MachineListComponent.propTypes = {
+    machines: PropTypes.arrayOf(Machine),
+    onSelect: PropTypes.func.isRequired,
+    onAdd: PropTypes.func.isRequired,
+}
+
+export default MachineListComponent