add management app skeleton and ConfirmDialog

We might rewrite PinDialog as a content for ConfirmDialog in the
future. Also, I'm beginning to hit memory issues on a 64-bit system.

src/apps/homescreen/layout_homescreen.py

@@ -29,7 +29,7 @@ def layout_homescreen(initialize_msg=None):
         features.device_id = 'DEADBEEF'
         features.coins = []
         features.imported = False
-        features.initialized = True
+        features.initialized = False
         features.label = 'My TREZOR'
         features.major_version = 2
         features.minor_version = 0
@@ -39,7 +39,7 @@ def layout_homescreen(initialize_msg=None):
         features.passphrase_cached = False
         features.passphrase_protection = False
         features.vendor = 'bitcointrezor.com'
-        wire.write_msg(features)
+        wire.write(features)
     yield loop.Wait([dispatcher.dispatch(),
                      swipe_to_rotate(),
                      animate_logo()])

src/apps/management/__init__.py

@@ -0,0 +1,17 @@
+from trezor.dispatcher import register
+from trezor.utils import unimport_func
+
+
+@unimport_func
+def dispatch_LoadDevice(mtype, mbuf):
+    from trezor.messages.LoadDevice import LoadDevice
+
+    message = LoadDevice.loads(mbuf)
+
+    from .layout_load_device import layout_load_device
+    return layout_load_device(message)
+
+
+def boot():
+    LoadDevice = 13
+    register(LoadDevice, dispatch_LoadDevice)

src/apps/management/layout_load_device.py

@@ -0,0 +1,37 @@
+from trezor import wire
+from trezor import ui
+from trezor.utils import unimport_gen
+
+
+@unimport_gen
+def confirm():
+    from trezor.ui.confirm import ConfirmDialog, CONFIRMED
+    from trezor.messages.ButtonRequest import ButtonRequest
+    from trezor.messages.ButtonRequestType import Other
+    from trezor.messages.ButtonAck import ButtonAck
+
+    dialog = ConfirmDialog()
+    dialog.render()
+
+    ack = yield from wire.call(ButtonRequest(code=Other), ButtonAck)
+    res = yield from dialog.wait()
+
+    return res == CONFIRMED
+
+
+@unimport_gen
+def layout_load_device(message):
+
+    ui.clear()
+    ui.display.text_center(120, 40, 'Really load device?', ui.BOLD, ui.WHITE, ui.BLACK)
+    ui.display.text_center(120, 100, 'Never do this, please.', ui.NORMAL, ui.WHITE, ui.BLACK)
+
+    confirmed = yield from confirm()
+
+    if confirmed:
+        from trezor.messages.Success import Success
+        wire.write(Success(message='Loaded'))
+    else:
+        from trezor.messages.Failure import Failure
+        from trezor.messages.FailureType import ActionCancelled
+        wire.write(Failure(message='Cancelled', code=ActionCancelled))

src/apps/playground/__init__.py

@@ -2,11 +2,11 @@ from trezor import loop
 from trezor import ui
 from trezor import msg
 from trezor.ui.pin import PinDialog, PIN_CONFIRMED, PIN_CANCELLED
-from trezor.utils import unimport_func
+from trezor.utils import unimport_gen
 from trezor.res import loadres
 
 
-@unimport_func
+@unimport_gen
 def layout_tap_to_confirm(address, amount, currency):
 
     # ui.display.bar(0, 0, 240, 40, ui.GREEN)

src/apps/wallet/layout_get_public_key.py

@@ -1,7 +1,6 @@
 from trezor import wire
 from trezor import ui
 from trezor.ui.button import Button, CONFIRM_BUTTON, CONFIRM_BUTTON_ACTIVE
-from trezor.ui.pin import PinDialog
 from trezor.utils import unimport_gen
 
 

src/main.py

@@ -4,15 +4,17 @@ from trezor import msg
 # Load all applications
 from apps import playground
 from apps import homescreen
+from apps import management
 from apps import wallet
 
 # Initialize all applications
 playground.boot()
 homescreen.boot()
+management.boot()
 wallet.boot()
 
 # just a demo to show how to register USB ifaces
-msg.setup( [ (1, 0xF53C), (2, 0xF1D0) ] )
+msg.setup([(1, 0xF53C), (2, 0xF1D0)])
 
 # Load default homescreen
 from apps.homescreen.layout_homescreen import layout_homescreen

src/trezor/ui/__init__.py

@@ -39,6 +39,10 @@ NORMAL = const(1)
 BOLD   = const(2)
 
 
+def clear(color=BLACK):
+    display.bar(0, 0, 240, 240, color)
+
+
 def in_area(pos: tuple, area: tuple) -> bool:
     x, y = pos
     ax, ay, aw, ah = area

src/trezor/ui/confirm.py

@@ -0,0 +1,42 @@
+from .button import Button, BTN_CLICKED
+from .button import CONFIRM_BUTTON, CONFIRM_BUTTON_ACTIVE
+from .button import CANCEL_BUTTON, CANCEL_BUTTON_ACTIVE
+from trezor import loop
+
+
+CONFIRMED = const(1)
+CANCELLED = const(2)
+
+
+class ConfirmDialog():
+
+    def __init__(self, content=None, confirm='Confirm', cancel='Cancel'):
+        self.content = content
+        self.confirm = Button((0, 240 - 60, 120, 60), confirm,
+                              normal_style=CONFIRM_BUTTON,
+                              active_style=CONFIRM_BUTTON_ACTIVE)
+        self.cancel = Button((120, 240 - 60, 120, 60), cancel,
+                             normal_style=CANCEL_BUTTON,
+                             active_style=CANCEL_BUTTON_ACTIVE)
+
+    def render(self):
+        if self.content is not None:
+            self.content.render()
+        self.confirm.render()
+        self.cancel.render()
+
+    def send(self, event, pos):
+        if self.confirm.send(event, pos) == BTN_CLICKED:
+            return CONFIRMED
+        if self.cancel.send(event, pos) == BTN_CLICKED:
+            return CANCELLED
+        if self.content is not None:
+            return self.content.send(event, pos)
+
+    def wait(self):
+        while True:
+            self.render()
+            event, *pos = yield loop.Select(loop.TOUCH)
+            result = self.send(event, pos)
+            if result is not None:
+                return result

src/trezor/wire.py

@@ -69,7 +69,7 @@ def write_wire_msg(mtype, mbuf):
         data = rep[1:]
 
 
-def read_msg(*types):
+def read(*types):
     mtype, mbuf = yield from read_wire_msg()
     for t in types:
         if t.wire_type == mtype:
@@ -78,13 +78,13 @@ def read_msg(*types):
         raise Exception('Unexpected message')
 
 
-def write_msg(m):
+def write(m):
     mbuf = m.dumps()
     mtype = m.message_type.wire_type
     write_wire_msg(mtype, mbuf)
 
 
 def call(req, *types):
-    write_msg(req)
+    write(req)
-    res = yield from read_msg(*types)
+    res = yield from read(*types)
     return res