rewrite server connect wizard to new wizard style

'last' property on WizardComponents is now queried from UI, not from the wizard.
This allows the content of the WizardComponent itself to be taken into account.

electrum/gui/qml/components/NewWalletWizard.qml

@@ -15,9 +15,7 @@ Wizard {
 
     property string path
 
-    enter: null // disable transition
-
-    property QtObject wiz: Daemon.newWalletWizard
+    wiz: Daemon.newWalletWizard
 
     Component.onCompleted: {
         var view = wiz.start_wizard()

electrum/gui/qml/components/ServerConnectWizard.qml

@@ -11,6 +11,8 @@ Wizard {
 
     enter: null // disable transition
 
+    wiz: Daemon.serverConnectWizard
+
     onAccepted: {
         var proxy = wizard_data['proxy']
         if (proxy && proxy['enabled'] == true) {
@@ -25,29 +27,7 @@ Wizard {
     }
 
     Component.onCompleted: {
-        var start = _loadNextComponent(autoconnect)
-        start.next.connect(function() {autoconnectDone()})
-    }
-
-    function autoconnectDone() {
-        var page = _loadNextComponent(proxyconfig, wizard_data)
-        page.next.connect(function() {proxyconfigDone()})
-    }
-
-    function proxyconfigDone() {
-        var page = _loadNextComponent(serverconfig, wizard_data)
-    }
-
-    property Component autoconnect: Component {
-        WCAutoConnect {}
-    }
-
-    property Component proxyconfig: Component {
-        WCProxyConfig {}
+        var view = wiz.start_wizard()
+        _loadNextComponent(view)
     }
-
-    property Component serverconfig: Component {
-        WCServerConfig {}
-    }
-
 }

electrum/gui/qml/components/wizard/WCAutoConnect.qml

@@ -1,14 +1,12 @@
 import QtQuick.Layouts 1.0
 import QtQuick.Controls 2.1
 
-import ".."
 import "../controls"
 
 WizardComponent {
     valid: true
-    last: serverconnectgroup.checkedButton.connecttype === 'auto'
 
-    onAccept: {
+    function apply() {
         wizard_data['autoconnect'] = serverconnectgroup.checkedButton.connecttype === 'auto'
     }
 
@@ -22,17 +20,18 @@ WizardComponent {
 
         ButtonGroup {
             id: serverconnectgroup
+            onCheckedButtonChanged: checkIsLast()
         }
 
         RadioButton {
             ButtonGroup.group: serverconnectgroup
             property string connecttype: 'auto'
             text: qsTr('Auto connect')
+            checked: true
         }
         RadioButton {
             ButtonGroup.group: serverconnectgroup
             property string connecttype: 'manual'
-            checked: true
             text: qsTr('Select servers manually')
         }
 

electrum/gui/qml/components/wizard/Wizard.qml

@@ -12,6 +12,7 @@ Dialog {
 
     property var wizard_data
     property alias pages: pages
+    property QtObject wiz
 
     function _setWizardData(wdata) {
         wizard_data = {}
@@ -49,7 +50,6 @@ Dialog {
             if (newview.view) {
                 console.log('next view: ' + newview.view)
                 var newpage = _loadNextComponent(newview.view, newview.wizard_data)
-                newpage.last = wiz.isLast(newview.wizard_data)
             } else {
                 console.log('END')
             }
@@ -57,7 +57,6 @@ Dialog {
         page.prev.connect(function() {
             var wdata = wiz.prev()
             console.log('prev view data: ' + JSON.stringify(wdata))
-            page.last = wiz.isLast(wdata)
         })
         Object.assign(page.wizard_data, wdata) // deep copy
         page.ready = true // signal page it can access wizard_data

electrum/gui/qml/components/wizard/WizardComponent.qml

@@ -8,4 +8,19 @@ Item {
     property bool valid
     property bool last: false
     property bool ready: false
+
+    onAccept: {
+        apply()
+    }
+
+    function apply() { }
+    function checkIsLast() {
+        apply()
+        last = wizard.wiz.isLast(wizard_data)
+    }
+
+    Component.onCompleted: {
+        checkIsLast()
+    }
+
 }

electrum/gui/qml/qeapp.py

@@ -29,7 +29,7 @@ from .qechannelopener import QEChannelOpener
 from .qelnpaymentdetails import QELnPaymentDetails
 from .qechanneldetails import QEChannelDetails
 from .qeswaphelper import QESwapHelper
-from .qewizard import QENewWalletWizard
+from .qewizard import QENewWalletWizard, QEServerConnectWizard
 
 notification = None
 
@@ -219,6 +219,7 @@ class ElectrumQmlApplication(QGuiApplication):
 
         qmlRegisterUncreatableType(QEAmount, 'org.electrum', 1, 0, 'Amount', 'Amount can only be used as property')
         qmlRegisterUncreatableType(QENewWalletWizard, 'org.electrum', 1, 0, 'NewWalletWizard', 'NewWalletWizard can only be used as property')
+        qmlRegisterUncreatableType(QEServerConnectWizard, 'org.electrum', 1, 0, 'ServerConnectWizard', 'ServerConnectWizard can only be used as property')
 
         self.engine = QQmlApplicationEngine(parent=self)
 

electrum/gui/qml/qedaemon.py

@@ -14,7 +14,7 @@ from .auth import AuthMixin, auth_protect
 from .qefx import QEFX
 from .qewallet import QEWallet
 from .qewalletdb import QEWalletDB
-from .qewizard import QENewWalletWizard
+from .qewizard import QENewWalletWizard, QEServerConnectWizard
 
 # wallet list model. supports both wallet basenames (wallet file basenames)
 # and whole Wallet instances (loaded wallets)
@@ -123,6 +123,7 @@ class QEDaemon(AuthMixin, QObject):
     _available_wallets = None
     _current_wallet = None
     _new_wallet_wizard = None
+    _server_connect_wizard = None
     _path = None
     _use_single_password = False
     _password = None
@@ -131,6 +132,7 @@ class QEDaemon(AuthMixin, QObject):
     availableWalletsChanged = pyqtSignal()
     fxChanged = pyqtSignal()
     newWalletWizardChanged = pyqtSignal()
+    serverConnectWizardChanged = pyqtSignal()
 
     walletLoaded = pyqtSignal()
     walletRequiresPassword = pyqtSignal()
@@ -296,3 +298,10 @@ class QEDaemon(AuthMixin, QObject):
             self._new_wallet_wizard = QENewWalletWizard(self)
 
         return self._new_wallet_wizard
+
+    @pyqtProperty(QEServerConnectWizard, notify=serverConnectWizardChanged)
+    def serverConnectWizard(self):
+        if not self._server_connect_wizard:
+            self._server_connect_wizard = QEServerConnectWizard(self)
+
+        return self._server_connect_wizard

electrum/gui/qml/qewizard.py

@@ -4,7 +4,7 @@ from PyQt5.QtCore import pyqtProperty, pyqtSignal, pyqtSlot, QObject
 from PyQt5.QtQml import QQmlApplicationEngine
 
 from electrum.logging import get_logger
-from electrum.gui.wizard import NewWalletWizard
+from electrum.gui.wizard import NewWalletWizard, ServerConnectWizard
 
 class QEAbstractWizard(QObject):
     _logger = get_logger(__name__)
@@ -99,3 +99,17 @@ class QENewWalletWizard(NewWalletWizard, QEAbstractWizard):
         except Exception as e:
             self._logger.error(repr(e))
             self.createError.emit(str(e))
+
+class QEServerConnectWizard(ServerConnectWizard, QEAbstractWizard):
+
+    def __init__(self, daemon, parent = None):
+        ServerConnectWizard.__init__(self, daemon)
+        QEAbstractWizard.__init__(self, parent)
+        self._daemon = daemon
+
+        # attach view names
+        self.navmap_merge({
+            'autoconnect': { 'gui': 'WCAutoConnect' },
+            'proxy_config': { 'gui': 'WCProxyConfig' },
+            'server_config': { 'gui': 'WCServerConfig' },
+        })

electrum/gui/wizard.py

@@ -287,3 +287,27 @@ class NewWalletWizard(AbstractWizard):
 
         db.load_plugins()
         db.write(storage)
+
+class ServerConnectWizard(AbstractWizard):
+
+    _logger = get_logger(__name__)
+
+    def __init__(self, daemon):
+        self.navmap = {
+            'autoconnect': {
+                'next': 'proxy_config',
+                'last': lambda v,d: d['autoconnect']
+            },
+            'proxy_config': {
+                'next': 'server_config'
+            },
+            'server_config': {
+                'last': True
+            }
+        }
+        self._daemon = daemon
+
+    def start(self, initial_data = {}):
+        self.reset()
+        self._current = WizardViewState('autoconnect', initial_data, {})
+        return self._current