Move src/chrome/views to src/views. RS=darin http://crbug.com/11387

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@15604 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 130 insertions, 0 deletions

diff --git a/views/accelerator.cc b/views/accelerator.cc
new file mode 100644
index 0000000..b9a474a
--- /dev/null
+++ b/views/accelerator.cc
@@ -0,0 +1,130 @@
+// Copyright (c) 2006-2008 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 "views/accelerator.h"
+
+#include <windows.h>
+
+#include "app/l10n_util.h"
+#include "base/logging.h"
+#include "base/string_util.h"
+#include "grit/generated_resources.h"
+
+namespace views {
+
+std::wstring Accelerator::GetShortcutText() const {
+  int string_id = 0;
+  switch(key_code_) {
+  case VK_TAB:
+    string_id = IDS_TAB_KEY;
+    break;
+  case VK_RETURN:
+    string_id = IDS_ENTER_KEY;
+    break;
+  case VK_ESCAPE:
+    string_id = IDS_ESC_KEY;
+    break;
+  case VK_PRIOR:
+    string_id = IDS_PAGEUP_KEY;
+    break;
+  case VK_NEXT:
+    string_id = IDS_PAGEDOWN_KEY;
+    break;
+  case VK_END:
+    string_id = IDS_END_KEY;
+    break;
+  case VK_HOME:
+    string_id = IDS_HOME_KEY;
+    break;
+  case VK_INSERT:
+    string_id = IDS_INSERT_KEY;
+    break;
+  case VK_DELETE:
+    string_id = IDS_DELETE_KEY;
+    break;
+  case VK_F1:
+    string_id = IDS_F1_KEY;
+    break;
+  case VK_F11:
+    string_id = IDS_F11_KEY;
+    break;
+  }
+
+  std::wstring shortcut;
+  if (!string_id) {
+    // Our fallback is to try translate the key code to a regular character
+    // unless it is one of digits (VK_0 to VK_9). Some keyboard
+    // layouts have characters other than digits assigned in
+    // an unshifted mode (e.g. French AZERY layout has 'a with grave
+    // accent' for '0'). For display in the menu (e.g. Ctrl-0 for the
+    // default zoom level), we leave VK_[0-9] alone without translation.
+    wchar_t key;
+    if (key_code_ >= '0' && key_code_ <= '9')
+      key = key_code_;
+    else
+      key = LOWORD(::MapVirtualKeyW(key_code_, MAPVK_VK_TO_CHAR));
+    shortcut += key;
+  } else {
+    shortcut = l10n_util::GetString(string_id);
+  }
+
+  // Checking whether the character used for the accelerator is alphanumeric.
+  // If it is not, then we need to adjust the string later on if the locale is
+  // right-to-left. See below for more information of why such adjustment is
+  // required.
+  std::wstring shortcut_rtl;
+  bool adjust_shortcut_for_rtl = false;
+  if (l10n_util::GetTextDirection() == l10n_util::RIGHT_TO_LEFT &&
+      shortcut.length() == 1 &&
+      !IsAsciiAlpha(shortcut.at(0)) &&
+      !IsAsciiDigit(shortcut.at(0))) {
+    adjust_shortcut_for_rtl = true;
+    shortcut_rtl.assign(shortcut);
+  }
+
+  if (IsShiftDown())
+    shortcut = l10n_util::GetStringF(IDS_SHIFT_MODIFIER, shortcut);
+
+  // Note that we use 'else-if' in order to avoid using Ctrl+Alt as a shortcut.
+  // See http://blogs.msdn.com/oldnewthing/archive/2004/03/29/101121.aspx for
+  // more information.
+  if (IsCtrlDown())
+    shortcut = l10n_util::GetStringF(IDS_CONTROL_MODIFIER, shortcut);
+  else if (IsAltDown())
+    shortcut = l10n_util::GetStringF(IDS_ALT_MODIFIER, shortcut);
+
+  // For some reason, menus in Windows ignore standard Unicode directionality
+  // marks (such as LRE, PDF, etc.). On RTL locales, we use RTL menus and
+  // therefore any text we draw for the menu items is drawn in an RTL context.
+  // Thus, the text "Ctrl++" (which we currently use for the Zoom In option)
+  // appears as "++Ctrl" in RTL because the Unicode BiDi algorithm puts
+  // punctuations on the left when the context is right-to-left. Shortcuts that
+  // do not end with a punctuation mark (such as "Ctrl+H" do not have this
+  // problem).
+  //
+  // The only way to solve this problem is to adjust the string if the locale
+  // is RTL so that it is drawn correnctly in an RTL context. Instead of
+  // returning "Ctrl++" in the above example, we return "++Ctrl". This will
+  // cause the text to appear as "Ctrl++" when Windows draws the string in an
+  // RTL context because the punctunation no longer appears at the end of the
+  // string.
+  //
+  // TODO(idana) bug# 1232732: this hack can be avoided if instead of using
+  // views::Menu we use views::MenuItemView because the latter is a View
+  // subclass and therefore it supports marking text as RTL or LTR using
+  // standard Unicode directionality marks.
+  if (adjust_shortcut_for_rtl) {
+    int key_length = static_cast<int>(shortcut_rtl.length());
+    DCHECK_GT(key_length, 0);
+    shortcut_rtl.append(L"+");
+
+    // Subtracting the size of the shortcut key and 1 for the '+' sign.
+    shortcut_rtl.append(shortcut, 0, shortcut.length() - key_length - 1);
+    shortcut.swap(shortcut_rtl);
+  }
+
+  return shortcut;
+}
+
+}  // namespace views