[RFC PATCH datacenter-manager] ui: views: map: add hint for map data source

[Dominik Csapak <d.csapak@proxmox.com>]

It's not strictly necessary, as the map data is in the public domain,
but it's probably a good idea to show users where the map data comes
from.

Suggested-by: Shannon Sterz <s.sterz@proxmox.com>
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
---
sending as RFC because I'm not sure if we want this so prominently.

 ui/css/pdm.scss         |  7 +++++++
 ui/src/dashboard/map.rs | 13 +++++++++++--
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/ui/css/pdm.scss b/ui/css/pdm.scss
index 549c006f..e2a70796 100644
--- a/ui/css/pdm.scss
+++ b/ui/css/pdm.scss
@@ -155,3 +155,10 @@
 .dragging-item {
     opacity: 0.5;
 }
+
+.pdm-map-hint {
+    position: absolute;
+    right: 0px;
+    bottom: 0px;
+    padding: var(--pwt-spacer-1);
+}
diff --git a/ui/src/dashboard/map.rs b/ui/src/dashboard/map.rs
index df13b605..b98ffb3b 100644
--- a/ui/src/dashboard/map.rs
+++ b/ui/src/dashboard/map.rs
@@ -186,10 +186,19 @@ impl yew::Component for DashboardMapComp {
             _ => return loading_column().into(),
         };
 
-        WorldMap::new(geojson)
+        let map = WorldMap::new(geojson)
+            .class(css::FlexFit)
+            .points(self.points.clone());
+
+        let link = "<a href='https://www.naturalearthdata.com' rel='noreferrer' target='_blank'>naturalearthdata.com</a>";
+        let text = tr!("Map data from {0}", link);
+
+        Container::new()
             .with_std_props(&props.std_props)
             .listeners(&props.listeners)
-            .points(self.points.clone())
+            .class(css::Display::Flex)
+            .with_child(map)
+            .with_child(span(Html::from_html_unchecked(text.into())).class("pdm-map-hint"))
             .into()
     }
 }
-- 
2.47.3