Start work on persistent install wizard

gui/qt/installwizard.py

@@ -20,6 +20,11 @@ from electrum.wizard import (WizardBase, UserCancelled,
                              MSG_SHOW_MPK, MSG_VERIFY_SEED,
                              MSG_GENERATING_WAIT)
 
+def clean_text(seed_e):
+    text = unicode(seed_e.toPlainText()).strip()
+    text = ' '.join(text.split())
+    return text
+
 class CosignWidget(QWidget):
     size = 120
 
@@ -69,8 +74,64 @@ class InstallWizard(WindowModalDialog, WizardBase):
         self.setMinimumSize(575, 400)
         self.setMaximumSize(575, 400)
         self.connect(self, QtCore.SIGNAL('accept'), self.accept)
-        self.stack = QStackedLayout()
+        self.title = QLabel()
-        self.setLayout(self.stack)
+        self.main_widget = QWidget()
+        self.cancel_button = QPushButton(_("Cancel"), self)
+        self.next_button = QPushButton(_("Next"), self)
+        self.next_button.setDefault(True)
+        self.logo = QLabel()
+        self.please_wait = QLabel(_("Please wait..."))
+        self.please_wait.setAlignment(Qt.AlignCenter)
+        self.icon_filename = None
+        self.loop = QEventLoop()
+        self.cancel_button.clicked.connect(lambda: self.loop.exit(False))
+        self.next_button.clicked.connect(lambda: self.loop.exit(True))
+        outer_vbox = QVBoxLayout(self)
+        inner_vbox = QVBoxLayout()
+        inner_vbox = QVBoxLayout()
+        inner_vbox.addWidget(self.title)
+        inner_vbox.addWidget(self.main_widget)
+        inner_vbox.addStretch(1)
+        inner_vbox.addWidget(self.please_wait)
+        inner_vbox.addStretch(1)
+        icon_vbox = QVBoxLayout()
+        icon_vbox.addWidget(self.logo)
+        icon_vbox.addStretch(1)
+        hbox = QHBoxLayout()
+        hbox.addLayout(icon_vbox)
+        hbox.addLayout(inner_vbox)
+        hbox.setStretchFactor(inner_vbox, 1)
+        outer_vbox.addLayout(hbox)
+        outer_vbox.addLayout(Buttons(self.cancel_button, self.next_button))
+        self.set_icon(':icons/electrum.png')
+        self.show()
+        self.raise_()
+
+    def set_icon(self, filename):
+        prior_filename, self.icon_filename = self.icon_filename, filename
+        self.logo.setPixmap(QPixmap(filename).scaledToWidth(70))
+        return prior_filename
+
+    def set_main_layout(self, layout, title):
+        self.title.setText(title)
+        prior_layout = self.main_widget.layout()
+        if prior_layout:
+            QWidget().setLayout(prior_layout)
+        self.main_widget.setLayout(layout)
+        self.cancel_button.setEnabled(True)
+        self.next_button.setEnabled(True)
+        self.main_widget.setVisible(True)
+        self.please_wait.setVisible(False)
+        if not self.loop.exec_():
+            raise UserCancelled
+        self.title.setText("")
+        self.cancel_button.setEnabled(False)
+        self.next_button.setEnabled(False)
+        self.main_widget.setVisible(False)
+        self.please_wait.setVisible(True)
+        # For some reason, to refresh the GUI this needs to be called twice
+        self.app.processEvents()
+        self.app.processEvents()
 
     def open_wallet(self, *args):
         '''Wrap the base wizard implementation with try/except blocks
@@ -80,28 +141,35 @@ class InstallWizard(WindowModalDialog, WizardBase):
             wallet = super(InstallWizard, self).open_wallet(*args)
         except UserCancelled:
             self.print_error("wallet creation cancelled by user")
+            self.accept()
         return wallet
 
     def remove_from_recently_open(self, filename):
         self.config.remove_from_recently_open(filename)
 
-    # Called by plugins
+    def request_seed(self, title, is_valid=None):
-    def confirm(self, msg, icon=None):
+        is_valid = is_valid or Wallet.is_any
-        '''Returns True or False'''
+        slayout = seed_dialog.SeedLayout(None)
-        vbox = QVBoxLayout()
+        self.next_button.setEnabled(False)
-        self.set_layout(vbox)
+        def sanitized_seed():
-        if icon:
+            return clean_text(slayout.seed_edit())
-            logo = QLabel()
+        def set_enabled():
-            logo.setPixmap(icon)
+            self.next_button.setEnabled(is_valid(sanitized_seed()))
-            vbox.addWidget(logo)
+        slayout.seed_edit().textChanged.connect(set_enabled)
-        label = QLabel(msg)
+        self.set_main_layout(slayout.layout(), title)
-        label.setWordWrap(True)
+        return sanitized_seed()
-        vbox.addWidget(label)
+
-        vbox.addStretch(1)
+    def show_seed(self, seed):
-        vbox.addLayout(Buttons(CancelButton(self, _("Cancel")),
+        title =  _("Your wallet generation seed is:")
-                               OkButton(self, _("Next"))))
+        slayout = seed_dialog.SeedLayout(seed)
-        if not self.exec_():
+        self.set_main_layout(slayout.layout(), title)
-            raise UserCancelled
+
+    def verify_seed(self, seed, is_valid=None):
+        while True:
+            r = self.request_seed(MSG_VERIFY_SEED, is_valid)
+            if prepare_seed(r) == prepare_seed(seed):
+                return
+            self.show_error(_('Incorrect seed'))
 
     def show_and_verify_seed(self, seed, is_valid=None):
         """Show the user their seed.  Ask them to re-enter it.  Return
@@ -179,55 +247,17 @@ class InstallWizard(WindowModalDialog, WizardBase):
         actions = [_("Create a new wallet"),
                    _("Restore a wallet or import keys")]
 
-        main_label = QLabel(_("Electrum could not find an existing wallet."))
+        title = _("Electrum could not find an existing wallet.")
         actions_clayout = ChoicesLayout(_("What do you want to do?"), actions)
         wallet_clayout = ChoicesLayout(_("Wallet kind:"), wallet_kinds)
 
         vbox = QVBoxLayout()
-        vbox.addWidget(main_label)
         vbox.addLayout(actions_clayout.layout())
         vbox.addLayout(wallet_clayout.layout())
-        vbox.addStretch(1)
+        self.set_main_layout(vbox, title)
-
-        OK = OkButton(self, _('Next'))
-        vbox.addLayout(Buttons(CancelButton(self), OK))
-        self.set_layout(vbox)
-        OK.setDefault(True)
-        self.raise_()
-
-        if not self.exec_():
-            raise UserCancelled
-
         action = ['create', 'restore'][actions_clayout.selected_index()]
         return action, wallet_clayout.selected_index()
 
-    def verify_seed(self, seed, is_valid=None):
-        while True:
-            r = self.request_seed(MSG_VERIFY_SEED, is_valid)
-            if prepare_seed(r) == prepare_seed(seed):
-                return
-            self.show_error(_('Incorrect seed'))
-
-    def get_seed_text(self, seed_e):
-        text = unicode(seed_e.toPlainText()).strip()
-        text = ' '.join(text.split())
-        return text
-
-    def request_seed(self, msg, is_valid=None):
-        is_valid = is_valid or Wallet.is_any
-        vbox, seed_e = seed_dialog.enter_seed_box(msg, self)
-        vbox.addStretch(1)
-        button = OkButton(self, _('Next'))
-        vbox.addLayout(Buttons(CancelButton(self), button))
-        button.setEnabled(False)
-        def set_enabled():
-            button.setEnabled(is_valid(self.get_seed_text(seed_e)))
-        seed_e.textChanged.connect(set_enabled)
-        self.set_layout(vbox)
-        if not self.exec_():
-            raise UserCancelled
-        return self.get_seed_text(seed_e)
-
     def request_many(self, n, xpub_hot=None):
         vbox = QVBoxLayout()
         scroll = QScrollArea()
@@ -263,7 +293,7 @@ class InstallWizard(WindowModalDialog, WizardBase):
         vbox.addLayout(Buttons(CancelButton(self), button))
         button.setEnabled(False)
         def get_texts():
-            return [self.get_seed_text(entry) for entry in entries]
+            return [clean_text(entry) for entry in entries]
         def set_enabled():
             texts = get_texts()
             is_valid = Wallet.is_xpub if xpub_hot else Wallet.is_any
@@ -360,10 +390,3 @@ class InstallWizard(WindowModalDialog, WizardBase):
         n = int(n_edit.value())
         wallet_type = '%dof%d'%(m,n)
         return wallet_type
-
-    def show_seed(self, seed):
-        vbox = seed_dialog.show_seed_box_msg(seed, None)
-        vbox.addLayout(Buttons(CancelButton(self), OkButton(self, _("Next"))))
-        self.set_layout(vbox)
-        if not self.exec_():
-            raise UserCancelled

gui/qt/seed_dialog.py

@@ -43,14 +43,27 @@ def icon_filename(sid):
     else:
         return ":icons/seed.png"
 
+class SeedLayout(object):
+    def __init__(self, seed, sid=None):
+        if seed:
+            self.vbox = self.seed_and_warning_layout(seed, sid)
+        else:
+            self.vbox = self.seed_layout(seed, sid)
+
+    def layout(self):
+        return self.vbox
 
-def show_seed_box_msg(seedphrase, sid=None):
+    def seed_edit(self):
-    msg =  _("Your wallet generation seed is") + ":"
+        return self.seed_e
-    vbox = show_seed_box(msg, seedphrase, sid)
+
+    def seed_and_warning_layout(self, seed, sid=None):
+        vbox = QVBoxLayout()
+        vbox.addLayout(self.seed_layout(seed, sid))
         msg = ''.join([
             "<p>",
-        _("Please save these %d words on paper (order is important).")%len(seedphrase.split()) + " ",
+            _("Please save these %d words on paper (order is important). "),
-        _("This seed will allow you to recover your wallet in case of computer failure.") + "<br/>",
+            _("This seed will allow you to recover your wallet in case "
+              "of computer failure.") + "<br/>",
             "</p>",
             "<b>" + _("WARNING") + ":</b> ",
             "<ul>",
@@ -58,33 +71,24 @@ def show_seed_box_msg(seedphrase, sid=None):
             "<li>" + _("Never type it on a website.") + "</li>",
             "<li>" + _("Do not send your seed to a printer.") + "</li>",
             "</ul>"
-    ])
+        ]) % len(seed.split())
         label2 = QLabel(msg)
         label2.setWordWrap(True)
         vbox.addWidget(label2)
-    vbox.addStretch(1)
         return vbox
 
-def show_seed_box(msg, seed, sid):
+    def seed_layout(self, seed, sid=None):
-    vbox, seed_e = enter_seed_box(msg, None, sid=sid, text=seed)
-    return vbox
-
-def enter_seed_box(msg, window, sid=None, text=None):
-    vbox = QVBoxLayout()
         logo = QLabel()
         logo.setPixmap(QPixmap(icon_filename(sid)).scaledToWidth(56))
         logo.setMaximumWidth(60)
-    label = QLabel(msg)
+        if not seed:
-    label.setWordWrap(True)
-    if not text:
             seed_e = ScanQRTextEdit()
             seed_e.setTabChangesFocus(True)
         else:
-        seed_e = ShowQRTextEdit(text=text)
+            seed_e = ShowQRTextEdit(text=seed)
-    seed_e.setMaximumHeight(130)
+        seed_e.setMaximumHeight(100)
-    vbox.addWidget(label)
+        self.seed_e = seed_e
-    grid = QGridLayout()
+        hbox = QHBoxLayout()
-    grid.addWidget(logo, 0, 0)
+        hbox.addWidget(logo)
-    grid.addWidget(seed_e, 0, 1)
+        hbox.addWidget(seed_e)
-    vbox.addLayout(grid)
+        return hbox
-    return vbox, seed_e

plugins/trustedcoin/qt.py

@@ -103,9 +103,14 @@ class Plugin(TrustedCoinPlugin):
                              on_finished)
 
     def show_disclaimer(self, wallet, window):
-        icon = QPixmap(':icons/trustedcoin.png')
+        prior_icon = window.set_icon(':icons/trustedcoin.png')
-        window.confirm('\n\n'.join(DISCLAIMER), icon=icon)
+        label = QLabel('\n\n'.join(DISCLAIMER))
+        label.setWordWrap(True)
+        vbox = QVBoxLayout()
+        vbox.addWidget(label)
+        window.set_main_layout(vbox, _("Two-Factor Authentication"))
         self.set_enabled(wallet, True)
+        window.set_icon(prior_icon)
 
     @hook
     def abort_send(self, window):