From 1493a310af6f9ae4b599fe5ca65bb91f0e9c4f9c Mon Sep 17 00:00:00 2001
From: Zach Fox <fox@highfidelity.io>
Date: Mon, 7 Aug 2017 17:02:24 -0700
Subject: [PATCH] Beginning of stack stuff

---
 .../resources/qml/hifi/commerce/Checkout.qml  |  9 ++--
 scripts/system/marketplaces/marketplaces.js   | 51 ++++++++++++++++++-
 2 files changed, 56 insertions(+), 4 deletions(-)

diff --git a/interface/resources/qml/hifi/commerce/Checkout.qml b/interface/resources/qml/hifi/commerce/Checkout.qml
index dcf659c78c..941846a484 100644
--- a/interface/resources/qml/hifi/commerce/Checkout.qml
+++ b/interface/resources/qml/hifi/commerce/Checkout.qml
@@ -240,7 +240,9 @@ Rectangle {
             anchors.leftMargin: 20;
             width: parent.width/2 - anchors.leftMargin*2;
             text: "Cancel"
-            //onClicked: deleteAttachment(root.attachment);
+            onClicked: {
+                sendToScript({method: 'checkout_cancelClicked'});
+            }
         }
 
         // "Buy" button
@@ -255,7 +257,9 @@ Rectangle {
             anchors.rightMargin: 20;
             width: parent.width/2 - anchors.rightMargin*2;
             text: "Buy"
-            //onClicked: deleteAttachment(root.attachment);
+            onClicked: {
+                sendToScript({method: 'checkout_buyClicked'});
+            }
         }
     }
     //
@@ -281,7 +285,6 @@ Rectangle {
     function fromScript(message) {
         switch (message.method) {
             case 'updateCheckoutQML':
-                console.log("ZRF:", JSON.stringify(message));
                 itemNameText.text = message.params.itemName;
                 itemAuthorText.text = message.params.itemAuthor;
                 itemPriceText.text = message.params.itemPrice;
diff --git a/scripts/system/marketplaces/marketplaces.js b/scripts/system/marketplaces/marketplaces.js
index b3020d1d82..503eb69cc3 100644
--- a/scripts/system/marketplaces/marketplaces.js
+++ b/scripts/system/marketplaces/marketplaces.js
@@ -131,7 +131,8 @@
     }
 
     function onScreenChanged(type, url) {
-        onMarketplaceScreen = type === "Web" && url === MARKETPLACE_URL_INITIAL
+        onMarketplaceScreen = type === "Web" && url === MARKETPLACE_URL_INITIAL;
+        wireEventBridge(type === "QML" && url === MARKETPLACE_CHECKOUT_QML_PATH);
         // for toolbar mode: change button to active when window is first openend, false otherwise.
         marketplaceButton.editProperties({ isActive: onMarketplaceScreen });
         if (type === "Web" && url.indexOf(MARKETPLACE_URL) !== -1) {
@@ -154,4 +155,52 @@
         Entities.canWriteAssetsChanged.disconnect(onCanWriteAssetsChanged);
     });
 
+
+
+    // Function Name: wireEventBridge()
+    //
+    // Description:
+    //   -Used to connect/disconnect the script's response to the tablet's "fromQml" signal. Set the "on" argument to enable or
+    //    disable to event bridge.
+    //
+    // Relevant Variables:
+    //   -hasEventBridge: true/false depending on whether we've already connected the event bridge.
+    var hasEventBridge = false;
+    function wireEventBridge(on) {
+        if (!tablet) {
+            print("Warning in wireEventBridge(): 'tablet' undefined!");
+            return;
+        }
+        if (on) {
+            if (!hasEventBridge) {
+                tablet.fromQml.connect(fromQml);
+                hasEventBridge = true;
+            }
+        } else {
+            if (hasEventBridge) {
+                tablet.fromQml.disconnect(fromQml);
+                hasEventBridge = false;
+            }
+        }
+    }
+
+    // Function Name: fromQml()
+    //
+    // Description:
+    //   -Called when a message is received from Checkout.qml. The "message" argument is what is sent from the Checkout QML
+    //    in the format "{method, params}", like json-rpc.
+    function fromQml(message) {
+        switch (message.method) {
+            case 'checkout_cancelClicked':
+                print('fromQml: ' + JSON.stringify(message));
+                tablet.popFromStack();
+                break;
+            case 'checkout_buyClicked':
+                tablet.popFromStack();
+                break;
+            default:
+                print('Unrecognized message from Checkout.qml: ' + JSON.stringify(message));
+        }
+    }
+
 }()); // END LOCAL_SCOPE