core/debug: reading layouts, inserting synthetic events

core/src/apps/debug/__init__.py

@@ -4,12 +4,13 @@ if not __debug__:
     halt("debug mode inactive")
 
 if __debug__:
-    from trezor import config, log, loop, utils
+    from trezor import config, io, log, loop, ui, utils
     from trezor.messages import MessageType, DebugSwipeDirection
+    from trezor.messages.DebugLinkLayout import DebugLinkLayout
     from trezor.wire import register
 
     if False:
-        from typing import Optional
+        from typing import List, Optional
         from trezor import wire
         from trezor.messages.DebugLinkDecision import DebugLinkDecision
         from trezor.messages.DebugLinkGetState import DebugLinkGetState
@@ -28,6 +29,15 @@ if __debug__:
 
     debuglink_decision_chan = loop.chan()
 
+    layout_change_chan = loop.chan()
+    current_content = []  # type: List[str]
+
+    def notify_layout_change(layout: ui.Layout) -> None:
+        global current_content
+        current_content = layout.read_content()
+        if layout_change_chan.takers:
+            layout_change_chan.publish(current_content)
+
     async def debuglink_decision_dispatcher() -> None:
         from trezor.ui import confirm, swipe
 
@@ -53,12 +63,21 @@ if __debug__:
 
     async def dispatch_DebugLinkDecision(
         ctx: wire.Context, msg: DebugLinkDecision
-    ) -> None:
-
+    ) -> Optional[DebugLinkLayout]:
         if debuglink_decision_chan.putters:
             log.warning(__name__, "DebugLinkDecision queue is not empty")
 
-        debuglink_decision_chan.publish(msg)
+        if msg.x is not None:
+            evt_down = io.TOUCH_START, msg.x, msg.y
+            evt_up = io.TOUCH_END, msg.x, msg.y
+            loop.synthetic_events.append((io.TOUCH, evt_down))
+            loop.synthetic_events.append((io.TOUCH, evt_up))
+        else:
+            debuglink_decision_chan.publish(msg)
+
+        if msg.wait:
+            content = await layout_change_chan.take()
+            return DebugLinkLayout(lines=content)
 
     async def dispatch_DebugLinkGetState(
         ctx: wire.Context, msg: DebugLinkGetState
@@ -72,6 +91,7 @@ if __debug__:
         m.mnemonic_type = mnemonic.get_type()
         m.passphrase_protection = has_passphrase()
         m.reset_entropy = reset_internal_entropy
+        m.layout_lines = current_content
 
         if msg.wait_word_pos:
             m.reset_word_pos = await reset_word_index.take()

core/src/apps/management/recovery_device/layout.py

@@ -310,6 +310,11 @@ class RecoveryHomescreen(ui.Component):
 
         self.repaint = False
 
+    if __debug__:
+
+        def read_content(self):
+            return [self.__class__.__name__, self.text, self.subtext or ""]
+
 
 async def homescreen_dialog(
     ctx: wire.GenericContext,

core/src/apps/management/reset_device/layout.py

@@ -643,6 +643,11 @@ class MnemonicWordSelect(ui.Layout):
 
         return fn
 
+    if __debug__:
+
+        def read_content(self):
+            return self.text.read_content() + [b.text for b in self.buttons]
+
 
 async def show_reset_device_warning(ctx, backup_type: BackupType = BackupType.Bip39):
     text = Text("Create new wallet", ui.ICON_RESET, new_lines=False)

core/src/trezor/ui/__init__.py

@@ -5,6 +5,9 @@ from trezorui import Display
 
 from trezor import io, loop, res, utils
 
+if __debug__:
+    from apps.debug import notify_layout_change
+
 if False:
     from typing import Any, Awaitable, Generator, Tuple, TypeVar
 
@@ -226,6 +229,11 @@ class Component:
     def on_touch_end(self, x: int, y: int) -> None:
         pass
 
+    if __debug__:
+
+        def read_content(self) -> List[str]:
+            return [self.__class__.__name__]
+
 
 class Result(Exception):
     """
@@ -279,6 +287,8 @@ class Layout(Component):
             # layout channel.  This allows other layouts to cancel us, and the
             # layout tasks to trigger restart by exiting (new tasks are created
             # and we continue, because we are in a loop).
+            if __debug__:
+                notify_layout_change(self)
             while True:
                 await loop.race(layout_chan.take(), *self.create_tasks())
         except Result as result:

core/src/trezor/ui/button.py

@@ -4,7 +4,7 @@ from trezor import ui
 from trezor.ui import display, in_area
 
 if False:
-    from typing import Type, Union, Optional
+    from typing import List, Type, Union
 
 
 class ButtonDefault:
@@ -239,3 +239,8 @@ class Button(ui.Component):
 
     def on_click(self) -> None:
         pass
+
+    if __debug__:
+
+        def read_content(self) -> List[str]:
+            return ["<Button: {}>".format(self.text)]

core/src/trezor/ui/confirm.py

@@ -8,7 +8,7 @@ if __debug__:
     from apps.debug import swipe_signal
 
 if False:
-    from typing import Any, Optional, Tuple
+    from typing import Any, Optional, List, Tuple
     from trezor.ui.button import ButtonContent, ButtonStyleType
     from trezor.ui.loader import LoaderStyleType
 
@@ -74,6 +74,11 @@ class Confirm(ui.Layout):
     def on_cancel(self) -> None:
         raise ui.Result(CANCELLED)
 
+    if __debug__:
+
+        def read_content(self) -> List[str]:
+            return self.content.read_content()
+
 
 class Pageable:
     def __init__(self) -> None:
@@ -201,6 +206,11 @@ class InfoConfirm(ui.Layout):
     def on_info(self) -> None:
         raise ui.Result(INFO)
 
+    if __debug__:
+
+        def read_content(self) -> List[str]:
+            return self.content.read_content()
+
 
 class HoldToConfirm(ui.Layout):
     DEFAULT_CONFIRM = "Hold To Confirm"
@@ -250,3 +260,8 @@ class HoldToConfirm(ui.Layout):
 
     def on_confirm(self) -> None:
         raise ui.Result(CONFIRMED)
+
+    if __debug__:
+
+        def read_content(self) -> List[str]:
+            return self.content.read_content()

core/src/trezor/ui/container.py

@@ -1,5 +1,8 @@
 from trezor import ui
 
+if False:
+    from typing import List
+
 
 class Container(ui.Component):
     def __init__(self, *children: ui.Component):
@@ -8,3 +11,8 @@ class Container(ui.Component):
     def dispatch(self, event: int, x: int, y: int) -> None:
         for child in self.children:
             child.dispatch(event, x, y)
+
+    if __debug__:
+
+        def read_content(self) -> List[str]:
+            return sum((c.read_content() for c in self.children), [])

core/src/trezor/ui/scroll.py

@@ -6,10 +6,10 @@ from trezor.ui.confirm import CANCELLED, CONFIRMED
 from trezor.ui.swipe import SWIPE_DOWN, SWIPE_UP, SWIPE_VERTICAL, Swipe
 
 if __debug__:
-    from apps.debug import swipe_signal
+    from apps.debug import swipe_signal, notify_layout_change
 
 if False:
-    from typing import Tuple, List
+    from typing import List, Tuple
 
 
 def render_scrollbar(pages: int, page: int) -> None:
@@ -89,6 +89,9 @@ class Paginated(ui.Layout):
         self.pages[self.page].dispatch(ui.REPAINT, 0, 0)
         self.repaint = True
 
+        if __debug__:
+            notify_layout_change(self)
+
         self.on_change()
 
     def create_tasks(self) -> Tuple[loop.Task, ...]:
@@ -98,6 +101,11 @@ class Paginated(ui.Layout):
         if self.one_by_one:
             raise ui.Result(self.page)
 
+    if __debug__:
+
+        def read_content(self) -> List[str]:
+            return self.pages[self.page].read_content()
+
 
 class PageWithButtons(ui.Component):
     def __init__(
@@ -154,6 +162,11 @@ class PageWithButtons(ui.Component):
         else:
             self.paginated.on_down()
 
+    if __debug__:
+
+        def read_content(self) -> List[str]:
+            return self.content.read_content()
+
 
 class PaginatedWithButtons(ui.Layout):
     def __init__(
@@ -191,3 +204,8 @@ class PaginatedWithButtons(ui.Layout):
     def on_change(self) -> None:
         if self.one_by_one:
             raise ui.Result(self.page)
+
+    if __debug__:
+
+        def read_content(self) -> List[str]:
+            return self.pages[self.page].read_content()

core/src/trezor/ui/text.py

@@ -171,6 +171,12 @@ class Text(ui.Component):
             render_text(self.content, self.new_lines, self.max_lines)
             self.repaint = False
 
+    if __debug__:
+
+        def read_content(self) -> List[str]:
+            lines = [w for w in self.content if isinstance(w, str)]
+            return [self.header_text] + lines[: self.max_lines]
+
 
 LABEL_LEFT = const(0)
 LABEL_CENTER = const(1)
@@ -209,6 +215,11 @@ class Label(ui.Component):
                 )
             self.repaint = False
 
+    if __debug__:
+
+        def read_content(self) -> List[str]:
+            return [self.content]
+
 
 def text_center_trim_left(
     x: int, y: int, text: str, font: int = ui.NORMAL, width: int = ui.WIDTH - 16