qml: add export TX and scan of TX

electrum/gui/qml/components/ExportTxDialog.qml

@@ -0,0 +1,101 @@
+import QtQuick 2.6
+import QtQuick.Layouts 1.0
+import QtQuick.Controls 2.14
+import QtQuick.Controls.Material 2.0
+
+import "controls"
+
+ElDialog {
+    id: dialog
+
+    property QtObject txdetails
+
+    property string text
+    property string text_qr
+    // if text_qr is undefined text will be used
+    property string text_help
+
+    title: qsTr('Export Transaction')
+
+    parent: Overlay.overlay
+    modal: true
+    standardButtons: Dialog.Close
+
+    width: parent.width
+    height: parent.height
+
+    Overlay.modal: Rectangle {
+        color: "#aa000000"
+    }
+
+    Flickable {
+        anchors.fill: parent
+        contentHeight: rootLayout.height
+        clip:true
+        interactive: height < contentHeight
+
+        ColumnLayout {
+            id: rootLayout
+            width: parent.width
+            spacing: constants.paddingMedium
+
+            Item {
+                Layout.fillWidth: true
+                Layout.preferredHeight: qr.height
+                Layout.topMargin: constants.paddingSmall
+                Layout.bottomMargin: constants.paddingSmall
+                QRImage {
+                    id: qr
+                    qrdata: dialog.text_qr
+                    anchors.centerIn: parent
+                }
+            }
+
+            Label {
+                visible: dialog.text_help
+                text: dialog.text_help
+                wrapMode: Text.Wrap
+                Layout.fillWidth: true
+            }
+
+            Rectangle {
+                height: 1
+                Layout.preferredWidth: qr.width
+                Layout.alignment: Qt.AlignHCenter
+                color: Material.accentColor
+            }
+
+            RowLayout {
+                Layout.fillWidth: true
+                Layout.alignment: Qt.AlignHCenter
+
+                FlatButton {
+                    text: qsTr('Copy')
+                    icon.source: '../../icons/copy_bw.png'
+                    onClicked: AppController.textToClipboard(dialog.text)
+                }
+                FlatButton {
+                    text: qsTr('Share')
+                    icon.source: '../../icons/share.png'
+                    onClicked: {
+                        AppController.doShare(dialog.text, dialog.title)
+                    }
+                }
+            }
+        }
+    }
+
+    Connections {
+        target: dialog.enter
+        function onRunningChanged() {
+            if (!dialog.enter.running) {
+                qr.render = true
+            }
+        }
+    }
+
+    Component.onCompleted: {
+        text = dialog.txdetails.serializedTx(false)
+        text_qr = dialog.txdetails.serializedTx(true)
+    }
+}

electrum/gui/qml/components/SendDialog.qml

@@ -12,6 +12,8 @@ ElDialog {
 
     property InvoiceParser invoiceParser
 
+    signal txFound(data: string)
+
     parent: Overlay.overlay
     modal: true
     standardButtons: Dialog.Close
@@ -28,6 +30,15 @@ ElDialog {
         qrscan.restart()
     }
 
+    function dispatch(data) {
+        if (bitcoin.isRawTx(data)) {
+            // app.stack.push(Qt.resolvedUrl('TxDetails.qml'), { rawtx: text })
+            txFound(data)
+        } else {
+            invoiceParser.recipient = data
+        }
+    }
+
     ColumnLayout {
         anchors.fill: parent
         spacing: 0
@@ -37,7 +48,7 @@ ElDialog {
             Layout.preferredWidth: parent.width
             Layout.fillHeight: true
 
-            onFound: invoiceParser.recipient = scanData
+            onFound: dialog.dispatch(scanData)
         }
 
         FlatButton {
@@ -47,7 +58,7 @@ ElDialog {
             onClicked: {
                 var _mid = manualInputDialog.createObject(mainView)
                 _mid.accepted.connect(function() {
-                    invoiceParser.recipient = _mid.recipient
+                    dialog.dispatch(_mid.recipient)
                 })
                 _mid.open()
             }
@@ -57,7 +68,7 @@ ElDialog {
             Layout.fillWidth: true
             icon.source: '../../icons/paste.png'
             text: qsTr('Paste from clipboard')
-            onClicked: invoiceParser.recipient = AppController.clipboardToText()
+            onClicked: dialog.dispatch(AppController.clipboardToText())
         }
     }
 
@@ -102,4 +113,8 @@ ElDialog {
             onClosed: destroy()
         }
     }
+
+    Bitcoin {
+        id: bitcoin
+    }
 }

electrum/gui/qml/components/TxDetails.qml

@@ -27,6 +27,16 @@ Pane {
 
     property QtObject menu: Menu {
         id: menu
+        MenuItem {
+            icon.color: 'transparent'
+            action: Action {
+                text: qsTr('Export')
+                onTriggered: {
+                    var dialog = exportTxDialog.createObject(root, { txdetails: txdetails })
+                    dialog.open()
+                }
+            }
+        }
         MenuItem {
             icon.color: 'transparent'
             action: Action {
@@ -292,7 +302,7 @@ Pane {
                 RowLayout {
                     width: parent.width
                     Label {
-                        text: root.txid
+                        text: txdetails.txid
                         font.pixelSize: constants.fontSizeLarge
                         font.family: FixedFont
                         Layout.fillWidth: true
@@ -301,10 +311,10 @@ Pane {
                     ToolButton {
                         icon.source: '../../icons/share.png'
                         icon.color: 'transparent'
-                        enabled: root.txid
+                        enabled: txdetails.txid
                         onClicked: {
                             var dialog = app.genericShareDialog.createObject(root,
-                                { title: qsTr('Transaction ID'), text: root.txid }
+                                { title: qsTr('Transaction ID'), text: txdetails.txid }
                             )
                             dialog.open()
                         }
@@ -354,7 +364,7 @@ Pane {
                 Layout.columnSpan: 2
                 Button {
                     text: qsTr('Sign')
-                    enabled: !txdetails.isComplete
+                    enabled: txdetails.canSign
                     onClicked: txdetails.sign()
                 }
                 Button {
@@ -401,4 +411,10 @@ Pane {
         }
     }
 
+    Component {
+        id: exportTxDialog
+        ExportTxDialog {
+            onClosed: destroy()
+        }
+    }
 }

electrum/gui/qml/components/WalletMainView.qml

@@ -278,6 +278,10 @@ Item {
             width: parent.width
             height: parent.height
 
+            onTxFound: {
+                app.stack.push(Qt.resolvedUrl('TxDetails.qml'), { rawtx: data })
+                close()
+            }
             onClosed: destroy()
         }
     }

electrum/gui/qml/qebitcoin.py

@@ -154,7 +154,7 @@ class QEBitcoin(QObject):
         return create_bip21_uri(address, satoshis.satsInt, message, extra_query_params=extra_params)
 
     @pyqtSlot(str, result=bool)
-    def verify_raw_tx(self, rawtx):
+    def isRawTx(self, rawtx):
         try:
             tx_from_any(rawtx)
             return True

electrum/gui/qml/qetxdetails.py

@@ -35,9 +35,9 @@ class QETxDetails(QObject):
     _can_cpfp = False
     _can_save_as_local = False
     _can_remove = False
+    _can_sign = False
     _is_unrelated = False
     _is_complete = False
-
     _is_mined = False
 
     _mempool_depth = ''
@@ -186,6 +186,10 @@ class QETxDetails(QObject):
     def canRemove(self):
         return self._can_remove
 
+    @pyqtProperty(bool, notify=detailsChanged)
+    def canSign(self):
+        return self._can_sign
+
     @pyqtProperty(bool, notify=detailsChanged)
     def isUnrelated(self):
         return self._is_unrelated
@@ -249,6 +253,7 @@ class QETxDetails(QObject):
         self._can_cpfp = txinfo.can_cpfp
         self._can_save_as_local = txinfo.can_save_as_local
         self._can_remove = txinfo.can_remove
+        self._can_sign = not self._is_complete and self._wallet.wallet.can_sign(self._tx)
 
         self.detailsChanged.emit()
 
@@ -326,3 +331,11 @@ class QETxDetails(QObject):
 
         self._wallet.wallet.adb.remove_transaction(txid)
         self._wallet.wallet.save_db()
+
+    @pyqtSlot(result=str)
+    @pyqtSlot(bool, result=str)
+    def serializedTx(self, for_qr=False):
+        if for_qr:
+            return self._tx.to_qr_data()
+        else:
+            return str(self._tx)