Needed Code Coverage > 75%

config/enterprise-project-scratch-def.json

@@ -1,9 +1,21 @@
 {
-    "orgName": "Acme DF18 Enterprise Company",
+    "orgName": "force-di-scratch-ent",
     "edition": "Enterprise",
+    "features": ["MultiCurrency","AuthorApex"],
     "settings": {
+        "communitiesSettings": {
+            "enableNetworksEnabled": false
+        },
+        "mobileSettings": {
+            "enableS1EncryptedStoragePref2": false
+        },
         "lightningExperienceSettings": {
-            "enableS1DesktopEnabled": true
+                "enableS1DesktopEnabled": true
+        },
+        "securitySettings": {
+            "sessionSettings":{
+                "sessionTimeout": "TwelveHours"
+            }
         }
     }
 }

config/project-scratch-def.json

@@ -1,9 +1,21 @@
 {
-    "orgName": "force-di",
+    "orgName": "force-di-scratch-dev",
     "edition": "Developer",
+    "features": ["MultiCurrency","AuthorApex"],
     "settings": {
+        "communitiesSettings": {
+            "enableNetworksEnabled": false
+        },
+        "mobileSettings": {
+            "enableS1EncryptedStoragePref2": false
+        },
         "lightningExperienceSettings": {
-            "enableS1DesktopEnabled": true
+                "enableS1DesktopEnabled": true
+        },
+        "securitySettings": {
+            "sessionSettings":{
+                "sessionTimeout": "TwelveHours"
+            }
         }
     }
 }

force-di/main/aura/di_injector/di_injector.cmp

@@ -28,6 +28,11 @@
 
 <aura:component controller="di_InjectorController">
     <aura:attribute name="bindingName" type="String" required="true"/>
+    <!-- BJA for container id -->
+    <aura:attribute name="bindingId" type="String" required="false"/>
     <aura:handler name="init" value="{!this}" action="{!c.doInit}"/>
+    <!-- Added by Leon Kempers: Listen to attribute value change -->
+    <aura:handler name="attributeChangeEvent" event="c:di_injectorAttributeChangeEvent" action="{!c.handleChangeEvent}" includeFacets="true" />
+
     {!v.body}
 </aura:component>

force-di/main/aura/di_injector/di_injectorController.js

@@ -30,19 +30,29 @@
         // Resolve the given binding
         var action = cmp.get("c.getBinding");
         action.setParams({ bindingName : cmp.get("v.bindingName") });
+
         action.setCallback(this, function(response) {
             var state = response.getState();
             if (state === "SUCCESS") {
                 var bindingInfo = response.getReturnValue();
                 var injectAttrs = cmp.get("v.body");
+
                 // Construct attributes to pass on to injected component
                 var componentName = null;
                 var componentAttrs = {};
+
+
                 if(bindingInfo.BindingTypeAsString == 'Flow') {
                     componentName = 'c:di_injectorFlowProxy';
                     componentAttrs['flowName'] = bindingInfo.To;
                     componentAttrs['injectorAttributes'] = injectAttrs;
                 } else if(bindingInfo.BindingTypeAsString == 'LightningComponent') {
+                    // Added by Leon Kempers: set aura:id
+                    let bindingId =  cmp.get('v.bindingId');
+                    if (typeof bindingId === 'undefined') {
+                        cmp.set('v.bindingId', 'di_component');
+                    }
+                    componentAttrs['aura:id'] = cmp.get('v.bindingId');
                     componentName = bindingInfo.To;
                     for (var attrIdx in injectAttrs) {
                         var injectAttr = injectAttrs[attrIdx];
@@ -52,6 +62,7 @@
                     console.log("Binding type " + bindingInfo.BindingTypeAsString + ' not supported');
                     return;
                 }
+
                 // Inject the component bound to the given binding
                 $A.createComponent(
                     componentName,
@@ -88,5 +99,32 @@
             }
         });
         $A.enqueueAction(action);
+    },
+
+    // Added by Leon Kempers: Listen to attribute value change
+    //
+    // added a handler to capture the di_injectorAttributeChangeEvent. When it comes in, 
+    // the handleChangeEvent() function looks at the bindingId variable stored in the component, 
+    // finds the component based on this ID, and changes the specified attribute to the 'newValue'.
+    //
+    // The only not-so-pretty thing here is that sometimes (e.g. in case of the spinner) the value 
+    // changed while $A.createComponent was still running (i.e. the Lightning Component hadn't 
+    // been put on the DOM yet). So in that case, we just wait 100ms and try again.
+    handleChangeEvent : function(component, event, helper) {
+
+        let bindingId = component.get('v.bindingId');
+        let auraCmp = component.find(bindingId);
+
+        // Sometimes value will change while the Aura Component hasn't
+        // been added to the DOM yet; wait 100ms and try again
+        if (typeof(auraCmp) === undefined) {
+            setTimeout(function() {
+                this.handleChangeEvent(component, event, helper);
+            }, 100);
+        } else {
+            let name  = event.getParam('name');
+            let newValue  = event.getParam('newValue');
+            auraCmp.set('v.' + name, newValue);
+        }
     }
 })

force-di/main/aura/di_injectorAttribute/di_injectorAttribute.cmp

@@ -16,4 +16,18 @@
                     description="Specific data type the value represents. Helps when mapping values to things like input variables of flows."
                     required="false"/>
 
+    <!-- Added by Leon Kempers: Register attribute value change 
+
+        fix the issue where attribute values passed to a Lightning Component were only 
+        set upon initialization, and subsequent changes were not handled
+
+         added a change handler for the "value" attribute, and registered the 
+         di_injectorAttributeChangeEvent. When the "value" attribute changes, it fires 
+         the di_injectorAttributeChangeEvent, and passes along the name and the new value 
+         of the changed attribute
+    -->
+    <aura:handler name="change" value="{!v.value}" action="{!c.handleValueChange}"/>
+    <aura:registerevent name="attributeChangeEvent" type="c:di_injectorAttributeChangeEvent" />
+
+
 </aura:component>

force-di/main/aura/di_injectorAttribute/di_injectorAttributeController.js

@@ -0,0 +1,11 @@
+({
+    // Leon Kempers - handle dynamic value change via event
+	handleValueChange : function(component, event, helper) {
+        let name = component.get('v.name');
+		let newValue = event.getParam('value');
+
+        let changeEvent = component.getEvent('attributeChangeEvent');
+        changeEvent.setParams({ 'name' : name, 'newValue' : newValue });
+        changeEvent.fire();
+	}
+})

force-di/main/aura/di_injectorAttributeChangeEvent/di_injectorAttributeChangeEvent.evt

@@ -0,0 +1,8 @@
+<!--
+    Added Event - Leon Kempers
+    Component Event to indicate when an attribute value has changed
+-->
+<aura:event type="COMPONENT" description="Event for sending information to encapsulated component">
+    <aura:attribute name="name" type="String" />
+    <aura:attribute name="newValue" type="String" />
+</aura:event>

force-di/main/aura/di_injectorAttributeChangeEvent/di_injectorAttributeChangeEvent.evt-meta.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<AuraDefinitionBundle xmlns="http://soap.sforce.com/2006/04/metadata">
+    <apiVersion>48.0</apiVersion>
+    <description>A Lightning Event Bundle</description>
+</AuraDefinitionBundle>

force-di/main/classes/di_Binding.cls

@@ -275,7 +275,6 @@ public abstract class di_Binding implements Comparable {
         {
             if ( this.bindings == null ) 
             {
-                System.debug('// di_Binding.Resolver :: Loading Bindings //');
                 // Ask each module to configure and aggregate the resulting bindings
                 this.bindings = new List<di_Binding>();
                 for (di_Module module : modules) 

force-di/main/classes/di_Injector.cls

@@ -33,11 +33,13 @@ public class di_Injector {
     public static final di_Injector Org =
         new di_Injector(
             new List<di_Module> {
-                new CustomMetadataModule()});
+        new CustomMetadataModule()
+    });
 
     /**
      * Bindings visible to this Injector
      **/
+    @TestVisible
     public di_Binding.Resolver Bindings {get; private set;}
 
     /**
@@ -84,7 +86,6 @@ public class di_Injector {
         if ( String.isBlank(developerName) ) {
             throw new InjectorException('Request for Binding cannot take "developerName" parameter of null');
         }
-
         List<di_Binding> bindingsFound = this.Bindings.byName( developerName.toLowerCase().trim() ).get();
         if ( bindingsFound == null || bindingsFound.isEmpty() ) {
             throw new InjectorException('Binding for "' + developerName + '" not found');
@@ -121,8 +122,8 @@ public class di_Injector {
         }
 
         List<di_Binding> bindingsFound = this.Bindings.bySObject( bindingSObjectType )
-                                            .byName( developerName.toLowerCase().trim() )
-                                            .get();
+                                         .byName( developerName.toLowerCase().trim() )
+                                         .get();
 
         if ( bindingsFound == null || bindingsFound.isEmpty() || bindingsFound[0] == null) {
             throw new InjectorException('Binding for "' + developerName + '" and SObjectType "' + bindingSObjectType + '" not found');
@@ -152,23 +153,23 @@ public class di_Injector {
                                                         , BindingObject__r.QualifiedApiName
                                                         , BindingObjectAlternate__c
                                                         , BindingSequence__c
-                                                        FROM di_Binding__mdt];
-            for(di_Binding__mdt records :bindingMDTRec){
+                                                     FROM di_Binding__mdt];
+            for(di_Binding__mdt records :bindingMDTRec) {
                 recordList.add(new di_BindingConfigWrapper(records));
             }
             // When we want to mock data from metadata for injecting dependencies.
-            if(di_Injector.mock_BindingConfigurationWrappersOuter != null){
+            if(di_Injector.mock_BindingConfigurationWrappersOuter != null) {
                 recordList = di_Injector.mock_BindingConfigurationWrappersOuter;
             }
             return recordList;
         }
         public override void configure() {
             // TODO: Support Namespace
-            for(di_BindingConfigWrapper bindingConfig :getDIBinding()){
+            for(di_BindingConfigWrapper bindingConfig :getDIBinding()) {
                 bind(bindingConfig.DeveloperName);
                 type(bindingConfig.Type);
                 if( String.isNotBlank(bindingConfig.BindingObject)
-                    || String.isNotBlank(bindingConfig.BindingObjectAlternate)){
+                    || String.isNotBlank(bindingConfig.BindingObjectAlternate)) {
                     bindingObjectApiName =  String.isNotBlank(bindingConfig.BindingObject)
                                             ? bindingConfig.bindingObjectQualifiedApiName.toLowerCase().trim()
                                             : bindingConfig.BindingObjectAlternate.toLowerCase().trim();
@@ -178,7 +179,7 @@ public class di_Injector {
                     }
                     bind(results[0].getSObjectType()); // if it is getting here, then it is finding a SObject to add to the binding
                 }
-                if(bindingConfig.BindingSequence != null){
+                if(bindingConfig.BindingSequence != null) {
                     sequence(Integer.valueOf(bindingConfig.BindingSequence));
                 }
                 data(bindingConfig);

force-di/main/classes/di_InjectorComponentController.cls

@@ -22,13 +22,14 @@
  *  OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  *  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-**/
+ **/
 
 public with sharing class di_InjectorComponentController {
 
-    public String BindingNameValue {set;get;}
-
-    public Object ParametersValue {set;get;}
+    public String BindingNameValue {set; get;}
+    // BJA - container id for lightning-- allows consumers to reference into (optional)
+    public String BindingIdValue {set; get;}
+    public Object ParametersValue {set; get;}
 
     public ApexPages.Component getInject() {
         ApexPages.Component cmp = null;
@@ -56,7 +57,7 @@ public with sharing class di_InjectorComponentController {
         return new Component.di_injectorFlowProxy(
             flowName = flowName,
             inputVariables = params
-        );
+            );
     }
 
 }