Adds hover-highlighting for relations in the raw membership list

modules/ui/raw_member_editor.js

@@ -15,7 +15,8 @@ import { uiDisclosure } from './disclosure';
 import {
     utilDisplayName,
     utilDisplayType,
-    utilNoAuto
+    utilNoAuto,
+    utilHighlightEntity
 } from '../util';
 
 
@@ -37,8 +38,7 @@ export function uiRawMemberEditor(context) {
         context.map().zoomTo(entity);
 
         // highlight the feature in case it wasn't previously on-screen
-        var selectorPrefix = d.type === 'node' ? 'g.' : 'path.';
-        context.surface().selectAll(selectorPrefix+d.id).classed('highlighted', true);
+        utilHighlightEntity(d.id, true, context);
     }
 
 
@@ -135,12 +135,11 @@ export function uiRawMemberEditor(context) {
                     if (d.member) {
 
                         // highlight the member feature in the map while hovering on the list item
-                        var selectorPrefix = d.type === 'node' ? 'g.' : 'path.';
                         d3_select(this).on('mouseover', function() {
-                            context.surface().selectAll(selectorPrefix+d.id).classed('highlighted', true);
+                            utilHighlightEntity(d.id, true, context);
                         });
                         d3_select(this).on('mouseout', function() {
-                            context.surface().selectAll(selectorPrefix+d.id).classed('highlighted', false);
+                            utilHighlightEntity(d.id, false, context);
                         });
 
                         var label = d3_select(this).append('label')

modules/ui/raw_membership_editor.js

@@ -24,7 +24,7 @@ import { osmEntity, osmRelation } from '../osm';
 import { services } from '../services';
 import { svgIcon } from '../svg';
 import { uiDisclosure } from './disclosure';
-import { utilDisplayName, utilNoAuto } from '../util';
+import { utilDisplayName, utilNoAuto, utilHighlightEntity } from '../util';
 
 
 export function uiRawMembershipEditor(context) {
@@ -173,6 +173,16 @@ export function uiRawMembershipEditor(context) {
                 .append('li')
                 .attr('class', 'member-row member-row-normal form-field');
 
+            enter.each(function(d){
+                // highlight the relation in the map while hovering on the list item
+                d3_select(this).on('mouseover', function() {
+                    utilHighlightEntity(d.relation.id, true, context);
+                });
+                d3_select(this).on('mouseout', function() {
+                    utilHighlightEntity(d.relation.id, false, context);
+                });
+            });
+
             var label = enter
                 .append('label')
                 .attr('class', 'form-label')

modules/ui/selection_list.js

@@ -7,7 +7,7 @@ import { t } from '../util/locale';
 import { modeSelect } from '../modes';
 import { osmEntity } from '../osm';
 import { svgIcon } from '../svg';
-import { utilDisplayName } from '../util';
+import { utilDisplayName, utilHighlightEntity } from '../util';
 
 
 export function uiSelectionList(context, selectedIDs) {
@@ -70,12 +70,11 @@ export function uiSelectionList(context, selectedIDs) {
             enter
                 .each(function(d) {
                 // highlight the feature in the map while hovering on the list item
-                var selectorPrefix = d.type === 'node' ? 'g.' : 'path.';
                 d3_select(this).on('mouseover', function() {
-                    context.surface().selectAll(selectorPrefix+d.id).classed('highlighted', true);
+                    utilHighlightEntity(d.id, true, context);
                 });
                 d3_select(this).on('mouseout', function() {
-                    context.surface().selectAll(selectorPrefix+d.id).classed('highlighted', false);
+                    utilHighlightEntity(d.id, false, context);
                 });
             });
 

modules/util/index.js

@@ -7,12 +7,14 @@ export { utilDisplayType } from './util';
 export { utilEditDistance } from './util';
 export { utilEntitySelector } from './util';
 export { utilEntityOrMemberSelector } from './util';
+export { utilEntityOrDeepMemberSelector } from './util';
 export { utilFastMouse } from './util';
 export { utilFunctor } from './util';
 export { utilGetAllNodes } from './util';
 export { utilGetPrototypeOf } from './util';
 export { utilGetSetValue } from './get_set_value';
 export { utilHashcode } from './util';
+export { utilHighlightEntity } from './util';
 export { utilIdleWorker } from './idle_worker';
 export { utilNoAuto } from './util';
 export { utilPrefixCSSProperty } from './util';

modules/util/util.js

@@ -34,6 +34,32 @@ export function utilEntityOrMemberSelector(ids, graph) {
 }
 
 
+export function utilEntityOrDeepMemberSelector(ids, graph) {
+    var seen = {};
+    var allIDs = [];
+    function addEntityAndMembersIfNotYetSeen(id) {
+        // avoid infinite recursion for circular relations by skipping seen entities
+        if (seen[id]) return;
+        // mark the entity as seen
+        seen[id] = true;
+        // add the id;
+        allIDs.push(id);
+        if (graph.hasEntity(id)) {
+            var entity = graph.entity(id);
+            if (entity.type === 'relation' && entity.members) {
+                entity.members.forEach(function(member){
+                    addEntityAndMembersIfNotYetSeen(member.id);
+                });
+            }
+        }
+    }
+    ids.forEach(function(id) {
+        addEntityAndMembersIfNotYetSeen(id);
+    });
+    return utilEntitySelector(allIDs);
+}
+
+
 export function utilGetAllNodes(ids, graph) {
     var seen = {};
     var nodes = [];
@@ -282,3 +308,10 @@ export function utilHashcode(str) {
     }
     return hash;
 }
+
+// Adds or removes highlight styling for the specified entity's SVG elements in the map.
+export function utilHighlightEntity(id, highlighted, context) {
+    context.surface()
+        .selectAll(utilEntityOrDeepMemberSelector([id], context.graph()))
+        .classed('highlighted', highlighted);
+}