Add chrome to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@15 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 141 insertions, 0 deletions

diff --git a/chrome/views/accelerator.cc b/chrome/views/accelerator.cc
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+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include <string>
+#include <windows.h>
+
+#include "chrome/views/accelerator.h"
+
+#include "base/logging.h"
+#include "base/string_util.h"
+#include "chrome/common/l10n_util.h"
+#include "generated_resources.h"
+
+namespace ChromeViews {
+
+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;
+  }
+
+  std::wstring shortcut;
+  if (!string_id) {
+    // Our fallback is to try translate the key code to a regular char.
+    wchar_t 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
+  // ChromeViews::Menu we use ChromeViews::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 ChromeViews