add Timer to avoid FutureTime

mix/qml/Block.qml

@@ -232,15 +232,7 @@ ColumnLayout
                                 anchors.leftMargin: 10
                                 text: {
                                     if (index >= 0 && transactions.get(index).logs && transactions.get(index).logs.count)
-                                    {
-                                        for (var k = 0; k < transactions.get(index).logs.count; k++)
-                                        {
-                                            console.log("_________________________")
-                                            console.log(JSON.stringify(transactions.get(index).logs[k]))
-                                            console.log("_________________________")
-                                        }
                                         return transactions.get(index).logs.count
-                                    }
                                     else
                                         return ""
                                 }

mix/qml/BlockChain.qml

@@ -260,14 +260,29 @@ ColumnLayout {
                 sourceImg: "qrc:/qml/img/recycle-icon@2x.png"
             }
 
+            Timer
+            {
+                id: ensureNotFuturetime
+                interval: 1000
+                repeat: false
+                running: false
+            }
+
             ScenarioButton {
                 id: addBlockBtn
                 text: qsTr("Add Block")
                 onClicked:
                 {
+                    if (ensureNotFuturetime.running)
+                        return
+                    if (clientModel.mining || clientModel.running)
+                        return
                     var lastBlock = model.blocks[model.blocks.length - 1]
                     if (lastBlock.status === "pending")
+                    {
+                        ensureNotFuturetime.start()
                         clientModel.mine()
+                    }
                     else
                         addNewBlock()
                 }