Replace usages of Historian.hasBroadcastOrigin()

static/script-tests/tests/application-exit.js

@@ -192,4 +192,46 @@
             }
         );
     };
+
+    this.ApplicationExitTest.prototype.testHasBroadcastOriginWithNoBroadcastUrlParameterReturnsFalse = function(queue) {
+        queuedApplicationInit(
+            queue,
+            'lib/mockapplication',
+            [
+                'antie/devices/browserdevice'
+            ],
+            function(application, BrowserDevice) {
+                // Configure BrowserDevice.getWindowLocation() to return canned data
+                this.sandbox.stub(BrowserDevice.prototype, 'getWindowLocation', function() {
+                    return {
+                        href: 'http://www.test.com/',
+                        search: '?'
+                    };
+                });
+
+                assertFalse(application.hasBroadcastOrigin());
+            }
+        );
+    };
+
+    this.ApplicationExitTest.prototype.testHasBroadcastOriginWithNoBroadcastUrlParameterReturnsFalse = function(queue) {
+        queuedApplicationInit(
+            queue,
+            'lib/mockapplication',
+            [
+                'antie/devices/browserdevice'
+            ],
+            function(application, BrowserDevice) {
+                // Configure BrowserDevice.getWindowLocation() to return canned data
+                this.sandbox.stub(BrowserDevice.prototype, 'getWindowLocation', function() {
+                    return {
+                        href: 'http://www.test.com/?broadcast=true',
+                        search: '?broadcast=true'
+                    };
+                });
+
+                assert(application.hasBroadcastOrigin());
+            }
+        );
+    };
 }());

static/script/application.js

@@ -495,13 +495,23 @@ define('antie/application',
                 return this.getDevice().getHistorian().hasHistory();
             },
 
+            /**
+             * Returns a Boolean value to indicate whether the application has a parameter in its URL indicating
+             * it was launched with broadcast trust. Use isBroadcastSourceSupported() on {@link antie.devices.Device}
+             * to see whether a broadcast API is also available for your device.
+             * @returns {Boolean} True if the URL query contains a broadcast=true entry.
+             */
+            hasBroadcastOrigin: function () {
+                return this.getCurrentAppURLParameters().broadcast === 'true';
+            },
+
             /**
              * Exits the application by using the configured exit strategy for the device, even if there is a parent TAL
              * application in the history stack. Will exit to broadcast if the first TAL application was launched from
              * broadcast and a broadcast exit modifier is loaded.
              */
             exit: function exit () {
-                if (this.getDevice().getHistorian().hasBroadcastOrigin()) {
+                if (this.hasBroadcastOrigin()) {
                     this.getDevice().exitToBroadcast();
                 } else {
                     this.getDevice().exit();

static/script/devices/broadcastsource/astrasource.js

@@ -115,7 +115,7 @@ define(
     });
 
     Device.prototype.isBroadcastSourceSupported = function() {
-      return RuntimeContext.getCurrentApplication().getCurrentAppURLParameters().broadcast === 'true';
+      return RuntimeContext.getCurrentApplication().hasBroadcastOrigin();
     };
 
     /**

static/script/devices/broadcastsource/hbbtvsource.js

@@ -270,7 +270,7 @@ define(
         });
 
         Device.prototype.isBroadcastSourceSupported = function() {
-            return RuntimeContext.getCurrentApplication().getCurrentAppURLParameters().broadcast === 'true';
+            return RuntimeContext.getCurrentApplication().hasBroadcastOrigin();
         };
 
         /**