Pro 4260 export modal (#4)

* Style modal

* Backend route for related modules

* Export modal related types

* Export modal styling

* Export modal checkboxes layout

* Add icon for export button
Search relationships in widgets

* Export modal with fixed size

* Modal export: add section for page's children

i18n/en.json

@@ -1,5 +1,12 @@
 {
   "export": "Export",
   "exporting": "Exporting",
-  "exportModalDescription": "You've selected {{ count }} {{ type }} for export"
+  "exportModalDescription": "You've selected {{ count }} {{ type }} for export",
+  "exportModalRelatedDocumentDescription": "Include the following document types where applicable",
+  "exportModalSettingsLabel": "Export Settings",
+  "exportModalDocumentFormat": "Document Format",
+  "exportModalIncludeRelated": "Include related documents",
+  "exportModalIncludeChildren": "Include children of this page",
+  "exportModalIncludeRelatedSettings": "Related Documents Settings",
+  "exportModalNoRelatedTypes": "No Related Types"
 }

index.js

@@ -13,6 +13,45 @@ module.exports = {
       ns: 'aposImportExport',
       browser: true
     }
+  },
+
+  init(self) {
+    self.apos.asset.iconMap['apos-import-export-download-icon'] = 'Download';
+  },
+
+  apiRoutes(self) {
+    return {
+      get: {
+        async related(req) {
+          if (!req.user) {
+            throw self.apos.error('forbidden');
+          }
+
+          const type = self.apos.launder.string(req.query.type);
+          if (!type) {
+            throw self.apos.error('invalid');
+          }
+
+          const { schema = [] } = self.apos.modules[type];
+          const relatedTypes = schema.flatMap(searchRelationships).filter(Boolean);
+
+          return [ ...new Set(relatedTypes) ];
+
+          function searchRelationships(obj) {
+            if (obj.type === 'relationship') {
+              return obj.withType;
+            } else if (obj.type === 'array' || obj.type === 'object') {
+              return obj.schema.flatMap(searchRelationships);
+            } else if (obj.type === 'area') {
+              return Object.keys(obj.options.widgets).flatMap(widget => {
+                const { schema = [] } = self.apos.modules[`${widget}-widget`];
+                return schema.map(searchRelationships);
+              });
+            }
+          }
+        }
+      }
+    };
   }
 };
 

modules/@apostrophecms/import-export-doc-type/index.js

@@ -8,7 +8,7 @@ module.exports = {
       action: 'export',
       context: 'update',
       label: 'aposImportExport:export',
-      modal: 'AposExportPiecesModal'
+      modal: 'AposExportModal'
     };
 
     if (self.options.export === false) {

modules/@apostrophecms/import-export-piece-type/index.js

@@ -15,7 +15,7 @@ module.exports = {
           messages: {
             progress: 'aposImportExport:exporting'
           },
-          modal: 'AposExportPiecesModal'
+          modal: 'AposExportModal'
         }
       },
       group: {