Coding style.

- Divide input onto on_keyboard_input and on_mouse_input methods.
- Also let on_mouse_input see the original term code in case
  terminal.decode_mouse_input() is not enough.

eris/__main__.py

@@ -659,7 +659,8 @@ class Help:
     def _exit_help(self):
         self.screen._is_help_visible = False
 
-    def _on_mouse_event(self, event, appearance_changed_event):
+    def on_mouse_input(self, term_code, appearance_changed_event):
+        event = terminal.decode_mouse_input(term_code)
         if event[1] == 4:  # Mouse wheel up
             self.view.portal.scroll_up()
             appearance_changed_event.set()
@@ -667,12 +668,9 @@ class Help:
             self.view.portal.scroll_down()
             appearance_changed_event.set()
 
-    def on_input_event(self, event, appearance_changed_event):
-        if type(event) == tuple:
-            self._on_mouse_event(event, appearance_changed_event)
-            return
+    def on_keyboard_input(self, term_code, appearance_changed_event):
         try:
-            action = self.key_map[event.lower()]
+            action = self.key_map[term_code.lower()]
         except KeyError:
             pass
         else:
@@ -944,7 +942,14 @@ class Screen:
                   self._is_summary_focused or y <= view_height and
                   not self._is_summary_focused)))
 
-    def _on_mouse_event(self, event):
+    def on_mouse_input(self, term_code):
+        if self._is_help_visible:
+            self._help_widget.on_mouse_input(
+                term_code, self._appearance_changed_event)
+            return
+        event = terminal.decode_mouse_input(term_code)
+        if event[0] not in ["mouse press", "mouse drag"]:
+            return
         x, y = event[2:4]
         if event[0] == "mouse drag":
             last_x, last_y = self._last_mouse_position
@@ -967,23 +972,18 @@ class Screen:
                     self._select_entry_at_position(
                         x, y, view_width, view_height)
         self._last_mouse_position = x, y
+        self._appearance_changed_event.set()
 
-    def on_input_event(self, event):
+    def on_keyboard_input(self, term_code):
         if self._is_help_visible:
-            self._help_widget.on_input_event(
-                event, self._appearance_changed_event)
+            self._help_widget.on_keyboard_input(
+                term_code, self._appearance_changed_event)
             return
-        if type(event) == tuple:
-            if event[0] in ["mouse press", "mouse drag"]:
-                self._on_mouse_event(event)
-                self._appearance_changed_event.set()
-                return
-        else:
-            action = (self._key_map.get(event) or
-                      self._key_map.get(event.lower()))
-            if action is not None:
-                action(self)
-                self._appearance_changed_event.set()
+        action = (self._key_map.get(term_code) or
+                  self._key_map.get(term_code.lower()))
+        if action is not None:
+            action(self)
+            self._appearance_changed_event.set()
 
     def _fix_listing(self):
         widget = self._summary.get_selection()

eris/fill3.py

@@ -471,12 +471,12 @@ async def update_screen(screen_widget, appearance_changed_event):
 
 
 def on_terminal_input(screen_widget):
-    code = sys.stdin.read()
-    if code.startswith(terminal.ESC + "[M"):  # mouse
-        for part in code.split(terminal.ESC + "[M")[1:]:
-            screen_widget.on_input_event(terminal.decode_mouse(part))
+    term_code = sys.stdin.read()
+    if term_code.startswith(terminal.MOUSE):
+        for part in term_code.split(terminal.MOUSE)[1:]:
+            screen_widget.on_mouse_input(part)
     else:
-        return screen_widget.on_input_event(code)  # keyboard
+        return screen_widget.on_keyboard_input(term_code)
 
 
 @contextlib.contextmanager
@@ -512,17 +512,23 @@ def context(loop, appearance_changed_event, screen_widget, exit_loop=None):
 class _Screen:
 
     def __init__(self, appearance_changed_event):
-        self.appearance_changed_event = appearance_changed_event
+        self._appearance_changed_event = appearance_changed_event
         self.content = Filler(Text("Hello World"))
 
     def appearance(self, dimensions):
         return self.content.appearance(dimensions)
 
-    def on_input_event(self, event):
-        if event == "q":
+    def on_keyboard_input(self, term_code):
+        if term_code == "q":
             asyncio.get_event_loop().stop()
-        self.content = Filler(Text(repr(event)))
-        self.appearance_changed_event.set()
+        else:
+            self.content = Filler(Text(repr(term_code)))
+            self._appearance_changed_event.set()
+
+    def on_mouse_input(self, term_code):
+        mouse_code = terminal.decode_mouse_input(term_code)
+        self.content = Filler(Text(repr(term_code) + " " + repr(mouse_code)))
+        self._appearance_changed_event.set()
 
 
 def _main():

eris/terminal.py

@@ -9,6 +9,8 @@ import termios
 
 
 ESC = "\x1b"
+MOUSE = ESC + "[M"
+
 normal = "[m"
 bold = "[1m"
 italic = "[3m"
@@ -78,8 +80,8 @@ def interactive():
         termios.tcsetattr(sys.stdin, termios.TCSADRAIN, old_termios_settings)
 
 
-def decode_mouse(code):
-    keys = [ord(byte) for byte in code]
+def decode_mouse_input(term_code):
+    keys = [ord(byte) for byte in term_code]
     b = keys[0] - 32
     x, y = (keys[1] - 33) % 256, (keys[2] - 33) % 256
     button = ((b & 64) / 64 * 3) + (b & 3) + 1