Get rid of legacy keycodes mapping

src/pyj/complete.pyj

@@ -4,7 +4,6 @@ from __python__ import hash_literals, bound_methods
 
 from dom import ensure_id
 from elementmaker import E
-from keycodes import get_key
 from session import local_storage
 from popups import CompletionPopup
 from utils import uniq
@@ -34,15 +33,14 @@ class EditWithComplete:
             return True
 
     def onkeydown(self, event):
-        k = get_key(event)
-        if self.completion_popup.is_visible and self.completion_popup.handle_keydown(k):
+        if self.completion_popup.is_visible and self.completion_popup.handle_keydown(event):
             event.preventDefault(), event.stopPropagation()
             return
-        if k is 'enter':
+        if event.key is 'Enter':
             if self.onenterkey:
                 event.preventDefault(), event.stopPropagation()
                 self.onenterkey()
-        elif k is 'tab':
+        elif event.key is 'Tab':
             if self.completion_popup.is_visible:
                 if self.apply_completion(self.completion_popup.current_text):
                     self.completion_popup.hide()

src/pyj/keycodes.pyj

@@ -1,58 +0,0 @@
-# vim:fileencoding=utf-8
-# License: GPL v3 Copyright: 2016, Kovid Goyal <kovid at kovidgoyal.net>
-from __python__ import hash_literals
-
-KEYCODE_MAP = K = Object.create(None)
-K[8] = 'backspace'
-K[9] = 'tab'
-K[13] = 'enter'
-K[16] = 'shift'
-K[17] = 'ctrl'
-K[18] = 'alt'
-K[19] = 'pause'
-K[20] = 'capslock'
-K[27] = 'escape'
-K[32] = 'space'
-K[33] = 'pageup'
-K[34] = 'pagedown'
-K[35] = 'end'
-K[36] = 'home'
-K[37] = 'left'
-K[38] = 'up'
-K[39] = 'right'
-K[40] = 'down'
-K[45] = 'insert'
-K[46] = 'delete'
-K[91] = 'meta_l'
-K[92] = 'meta_r'
-K[93] = 'select'
-K[106] = 'numpad*'
-K[107] = 'numpad+'
-K[109] = 'numpad-'
-K[111] = 'numpad/'
-K[144] = 'numlock'
-K[145] = 'scrolllock'
-K[186] = ';'
-K[187] = '+'
-K[188] = ','
-K[189] = '-'
-K[190] = '.'
-K[191] = '/'
-K[192] = '`'
-K[219] = '['
-K[220] = '\\'
-K[221] = ']'
-K[222] = "'"
-
-for i in range(10):
-    KEYCODE_MAP[48 + i] = i + ''
-    KEYCODE_MAP[96 + i] = 'numpad' + i
-
-for i, c in enumerate(str.ascii_lowercase):
-    KEYCODE_MAP[65 + i] = c
-
-for i in range(1, 13):
-    KEYCODE_MAP[111 + i] = 'f' + 1
-
-def get_key(key_event):
-    return KEYCODE_MAP[key_event.keyCode]

src/pyj/popups.pyj

@@ -128,14 +128,15 @@ class CompletionPopup:
         if c:
             c.classList.remove(self.CURRENT_ITEM_CLASS)
 
-    def handle_keydown(self, key):
-        if key is 'escape':
+    def handle_keydown(self, event):
+        key = event.key
+        if key is 'Escape' or key is 'Esc':
             self.hide()
             return True
-        if key is 'up':
+        if key is 'ArrowUp':
             self.move_highlight(True)
             return True
-        if key is 'down':
+        if key is 'ArrowDown':
             self.move_highlight(False)
             return True
         return False

src/pyj/read_book/search.pyj

@@ -8,7 +8,6 @@ from gettext import gettext as _
 from book_list.theme import get_color
 from complete import create_search_bar
 from dom import add_extra_css, build_rule, svgicon
-from keycodes import get_key
 from read_book.globals import ui_operations
 from read_book.resources import text_from_serialized_html
 
@@ -44,8 +43,7 @@ class SearchOverlay:
         c.firstChild.addEventListener('keydown', self.onkeydown)
 
     def onkeydown(self, event):
-        k = get_key(event)
-        if k is 'escape':
+        if event.key is 'Escape' or event.key is 'Esc':
             self.hide()
             event.preventDefault(), event.stopPropagation()