LT-73 Move queryStudies used to get study metadata from exportStudies to lib as a global function

Packages/viewerbase/lib/exportStudies.js

@@ -9,28 +9,14 @@ exportStudies = function(studiesToExport) {
         return;
     }
 
-    var studiesQueried = [];
+    queryStudies(studiesToExport, exportQueriedStudies);
-    var numberOfStudiesToQuery = studiesToExport.length;
-
-    progressDialog.show("Querying Studies...", numberOfStudiesToQuery);
-
-    studiesToExport.forEach(function(selectedStudy) {
-        getStudyMetadata(selectedStudy.studyInstanceUid, function(study) {
-            studiesQueried.push(study);
-
-            var numberOfStudiesQueried = studiesQueried.length;
-
-            progressDialog.update(numberOfStudiesQueried);
-
-            if (numberOfStudiesQueried === numberOfStudiesToQuery) {
-                exportQueriedStudies(studiesQueried);
-            }
-        });
-    });
 };
 
 function exportQueriedStudies(studiesToExport) {
-    var numberOfFilesToExport = getNumberOfFilesToExport(studiesToExport);
+    var numberOfFilesToExport = 0;
+    studiesToExport.forEach(function(study) {
+        numberOfFilesToExport += getNumberOfFilesInStudy(study);
+    });
 
     progressDialog.show("Exporting Studies...", numberOfFilesToExport);
 
@@ -120,22 +106,6 @@ function exportQueriedStudiesInternal(studiesToExport, numberOfFilesToExport) {
     });
 }
 
-function getNumberOfFilesToExport(studiesToExport) {
-    var numberOFFilesToExport = 0;
-
-    studiesToExport.forEach(function(study) {
-        study.seriesList.forEach(function(series) {
-            series.instances.forEach(function(instance) {
-                if (instance.wadouri) {
-                    numberOFFilesToExport++;
-                }
-            });
-        });
-    });
-
-    return numberOFFilesToExport;
-}
-
 function onExportFailed(err) {
     exportFailed = true;
     progressDialog.close();

Packages/viewerbase/lib/queryStudies.js

@@ -0,0 +1,48 @@
+/**
+ * Queries requested studies to get their metadata from PACS
+ * @param studiesToQuery Studies to query
+ * @param doneCallback Callback to call when the query is done
+ */
+queryStudies = function(studiesToQuery, doneCallback) {
+    if (studiesToQuery.length < 1) {
+        return;
+    }
+
+    var studiesQueried = [];
+    var numberOfStudiesToQuery = studiesToQuery.length;
+
+    progressDialog.show("Querying Studies...", numberOfStudiesToQuery);
+
+    studiesToQuery.forEach(function(studyToQuery) {
+        getStudyMetadata(studyToQuery.studyInstanceUid, function(study) {
+            studiesQueried.push(study);
+
+            var numberOfStudiesQueried = studiesQueried.length;
+
+            progressDialog.update(numberOfStudiesQueried);
+
+            if (numberOfStudiesQueried === numberOfStudiesToQuery) {
+                doneCallback(studiesQueried);
+            }
+        });
+    });
+};
+
+/**
+ * Returns the total number of dicom files in a study
+ * @param study Queried study (includes metadata)
+ * @returns {number}
+ */
+getNumberOfFilesInStudy = function(study) {
+    var numberOFFilesToExport = 0;
+
+    study.seriesList.forEach(function(series) {
+        series.instances.forEach(function(instance) {
+            if (instance.wadouri) {
+                numberOFFilesToExport++;
+            }
+        });
+    });
+
+    return numberOFFilesToExport;
+};

Packages/viewerbase/package.js

@@ -146,6 +146,7 @@ Package.onUse(function(api) {
     api.addFiles('lib/resizeViewportElements.js', 'client');
     api.addFiles('lib/setFocusToActiveViewport.js', 'client');
     api.addFiles('lib/updateAllViewports.js', 'client');
+    api.addFiles('lib/queryStudies.js', 'client');
     api.addFiles('lib/exportStudies.js', 'client');
     api.addFiles('lib/importStudies.js', 'client');
     api.addFiles('lib/encodeQueryData.js', 'server');
@@ -166,6 +167,8 @@ Package.onUse(function(api) {
     api.export('updateOrientationMarkers', 'client');
     api.export('setFocusToActiveViewport', 'client');
     api.export('updateAllViewports', 'client');
+    api.export('queryStudies', 'client');
+    api.export('getNumberOfFilesInStudy', 'client');
     api.export('exportStudies', 'client');
     api.export('importStudies', 'client');
     api.export('getActiveViewportElement', 'client');