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Diffstat (limited to 'chromium/ui/events/keycodes/keyboard_code_conversion.cc')
-rw-r--r--chromium/ui/events/keycodes/keyboard_code_conversion.cc115
1 files changed, 115 insertions, 0 deletions
diff --git a/chromium/ui/events/keycodes/keyboard_code_conversion.cc b/chromium/ui/events/keycodes/keyboard_code_conversion.cc
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+++ b/chromium/ui/events/keycodes/keyboard_code_conversion.cc
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+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ui/events/keycodes/keyboard_code_conversion.h"
+
+#include "ui/events/event_constants.h"
+
+namespace ui {
+
+uint16 GetCharacterFromKeyCode(KeyboardCode key_code, int flags) {
+ const bool ctrl = (flags & EF_CONTROL_DOWN) != 0;
+ const bool shift = (flags & EF_SHIFT_DOWN) != 0;
+ const bool upper = shift ^ ((flags & EF_CAPS_LOCK_DOWN) != 0);
+
+ // Following Windows behavior to map ctrl-a ~ ctrl-z to \x01 ~ \x1A.
+ if (key_code >= VKEY_A && key_code <= VKEY_Z)
+ return key_code - VKEY_A + (ctrl ? 1 : (upper ? 'A' : 'a'));
+
+ // Other ctrl characters
+ if (ctrl) {
+ if (shift) {
+ // following graphics chars require shift key to input.
+ switch (key_code) {
+ // ctrl-@ maps to \x00 (Null byte)
+ case VKEY_2:
+ return 0;
+ // ctrl-^ maps to \x1E (Record separator, Information separator two)
+ case VKEY_6:
+ return 0x1E;
+ // ctrl-_ maps to \x1F (Unit separator, Information separator one)
+ case VKEY_OEM_MINUS:
+ return 0x1F;
+ // Returns 0 for all other keys to avoid inputting unexpected chars.
+ default:
+ return 0;
+ }
+ } else {
+ switch (key_code) {
+ // ctrl-[ maps to \x1B (Escape)
+ case VKEY_OEM_4:
+ return 0x1B;
+ // ctrl-\ maps to \x1C (File separator, Information separator four)
+ case VKEY_OEM_5:
+ return 0x1C;
+ // ctrl-] maps to \x1D (Group separator, Information separator three)
+ case VKEY_OEM_6:
+ return 0x1D;
+ // ctrl-Enter maps to \x0A (Line feed)
+ case VKEY_RETURN:
+ return 0x0A;
+ // Returns 0 for all other keys to avoid inputting unexpected chars.
+ default:
+ return 0;
+ }
+ }
+ }
+
+ // For IME support.
+ if (key_code == ui::VKEY_PROCESSKEY)
+ return 0xE5;
+
+ // Normal characters
+ if (key_code >= VKEY_0 && key_code <= VKEY_9) {
+ return shift ? ")!@#$%^&*("[key_code - VKEY_0] :
+ static_cast<uint16>(key_code);
+ } else if (key_code >= VKEY_NUMPAD0 && key_code <= VKEY_NUMPAD9) {
+ return key_code - VKEY_NUMPAD0 + '0';
+ }
+
+ switch (key_code) {
+ case VKEY_TAB:
+ return '\t';
+ case VKEY_RETURN:
+ return '\r';
+ case VKEY_MULTIPLY:
+ return '*';
+ case VKEY_ADD:
+ return '+';
+ case VKEY_SUBTRACT:
+ return '-';
+ case VKEY_DECIMAL:
+ return '.';
+ case VKEY_DIVIDE:
+ return '/';
+ case VKEY_SPACE:
+ return ' ';
+ case VKEY_OEM_1:
+ return shift ? ':' : ';';
+ case VKEY_OEM_PLUS:
+ return shift ? '+' : '=';
+ case VKEY_OEM_COMMA:
+ return shift ? '<' : ',';
+ case VKEY_OEM_MINUS:
+ return shift ? '_' : '-';
+ case VKEY_OEM_PERIOD:
+ return shift ? '>' : '.';
+ case VKEY_OEM_2:
+ return shift ? '?' : '/';
+ case VKEY_OEM_3:
+ return shift ? '~' : '`';
+ case VKEY_OEM_4:
+ return shift ? '{' : '[';
+ case VKEY_OEM_5:
+ return shift ? '|' : '\\';
+ case VKEY_OEM_6:
+ return shift ? '}' : ']';
+ case VKEY_OEM_7:
+ return shift ? '"' : '\'';
+ default:
+ return 0;
+ }
+}
+
+} // namespace ui