1 files changed, 103 insertions, 0 deletions
diff --git a/kvmd/keyboard/printer.py b/kvmd/keyboard/printer.py
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+++ b/kvmd/keyboard/printer.py
@@ -0,0 +1,103 @@
+# ========================================================================== #
+#                                                                            #
+#    KVMD - The main Pi-KVM daemon.                                          #
+#                                                                            #
+#    Copyright (C) 2018  Maxim Devaev <[email protected]>                    #
+#                                                                            #
+#    This program is free software: you can redistribute it and/or modify    #
+#    it under the terms of the GNU General Public License as published by    #
+#    the Free Software Foundation, either version 3 of the License, or       #
+#    (at your option) any later version.                                     #
+#                                                                            #
+#    This program is distributed in the hope that it will be useful,         #
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of          #
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the           #
+#    GNU General Public License for more details.                            #
+#                                                                            #
+#    You should have received a copy of the GNU General Public License       #
+#    along with this program.  If not, see <https://www.gnu.org/licenses/>.  #
+#                                                                            #
+# ========================================================================== #
+
+
+import string
+
+from typing import Tuple
+from typing import Generator
+
+from .mappings import KEYMAP
+
+
+# =====
+_LOWER_CHARS = {
+    "\n": "Enter",
+    "\t": "Tab",
+    " ": "Space",
+    "`": "Backquote",
+    "\\": "Backslash",
+    "[": "BracketLeft",
+    "]": "BracketLeft",
+    ",": "Comma",
+    ".": "Period",
+    "-": "Minus",
+    "'": "Quote",
+    ";": "Semicolon",
+    "/": "Slash",
+    "=": "Equal",
+    **{str(number): f"Digit{number}" for number in range(0, 10)},
+    **{ch: f"Key{ch.upper()}" for ch in string.ascii_lowercase},
+}
+assert not set(_LOWER_CHARS.values()).difference(KEYMAP)
+
+_UPPER_CHARS = {
+    "~": "Backquote",
+    "|": "Backslash",
+    "{": "BracketLeft",
+    "}": "BracketRight",
+    "<": "Comma",
+    ">": "Period",
+    "!": "Digit1",
+    "@": "Digit2",
+    "#": "Digit3",
+    "$": "Digit4",
+    "%": "Digit5",
+    "^": "Digit6",
+    "&": "Digit7",
+    "*": "Digit8",
+    "(": "Digit9",
+    ")": "Digit0",
+    "_": "Minus",
+    "\"": "Quote",
+    ":": "Semicolon",
+    "?": "Slash",
+    "+": "Equal",
+    **{ch: f"Key{ch}" for ch in string.ascii_uppercase},
+}
+assert not set(_UPPER_CHARS.values()).difference(KEYMAP)
+
+
+# =====
+def text_to_web_keys(text: str, shift_key: str="ShiftLeft") -> Generator[Tuple[str, bool], None, None]:
+    assert shift_key in ["ShiftLeft", "ShiftRight"]
+
+    shifted = False
+    for ch in text:
+        upper = False
+        key = _LOWER_CHARS.get(ch)
+        if key is None:
+            if (key := _UPPER_CHARS.get(ch)) is None:
+                continue
+            upper = True
+
+        if upper and not shifted:
+            yield (shift_key, True)
+            shifted = True
+        elif not upper and shifted:
+            yield (shift_key, False)
+            shifted = False
+
+        yield (key, True)
+        yield (key, False)
+
+    if shifted:
+        yield (shift_key, False)