chrome/browser/global_keyboard_shortcuts_mac.h

   1 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_GLOBAL_KEYBOARD_SHORTCUTS_MAC_H_
   6 #define CHROME_BROWSER_GLOBAL_KEYBOARD_SHORTCUTS_MAC_H_
   7
   8 #include "base/basictypes.h"
   9
  10 struct KeyboardShortcutData {
  11   bool command_key;
  12   bool shift_key;
  13   bool cntrl_key;
  14   bool opt_key;
  15   // Either one of vkey_code or key_char must be specified.  For keys
  16   // whose virtual key code is hardware-dependent (kVK_ANSI_*) key_char
  17   // should be specified instead.
  18   // Set 0 for the one you do not want to specify.
  19   int vkey_code;  // Virtual Key code for the command.
  20   unichar key_char;  // Key event characters for the command as reported by
  21                      // [NSEvent charactersIgnoringModifiers].
  22   int chrome_command;  // The chrome command # to execute for this shortcut.
  23 };
  24
  25 // Check if a given keycode + modifiers (or keychar + modifiers if the
  26 // |key_char| is specified) correspond to a given Chrome command.
  27 // returns: Command number (as passed to
  28 // BrowserCommandController::ExecuteCommand) or -1 if there was no match.
  29 //
  30 // |performKeyEquivalent:| bubbles events up from the window to the views.  If
  31 // we let it bubble up to the Omnibox, then the Omnibox handles cmd-left/right
  32 // just fine, but it swallows cmd-1 and doesn't give us a chance to intercept
  33 // this. Hence, we need three types of keyboard shortcuts: shortcuts that are
  34 // intercepted before the Omnibox handles events, shortcuts that are
  35 // intercepted after the Omnibox had a chance but did not handle them, and
  36 // shortcuts that are only handled when tab contents is focused.
  37 //
  38 // This means cmd-left doesn't work if you hit cmd-l tab, which focusses
  39 // something that's neither omnibox nor tab contents. This behavior is
  40 // consistent with safari and camino, and I think it's the best we can do
  41 // without rewriting event dispatching ( http://crbug.com/251069 ).
  42
  43 // This returns shortcuts that should work no matter what component of the
  44 // browser is focused. They are executed by the window, before any view has the
  45 // opportunity to override the shortcut (with the exception of the tab contents,
  46 // which first checks if the current web page wants to handle the shortcut).
  47 int CommandForWindowKeyboardShortcut(
  48     bool command_key, bool shift_key, bool cntrl_key, bool opt_key,
  49     int vkey_code, unichar key_char);
  50
  51 // This returns shortcuts that should work no matter what component of the
  52 // browser is focused. They are executed by the window, after any view has the
  53 // opportunity to override the shortcut
  54 int CommandForDelayedWindowKeyboardShortcut(
  55     bool command_key, bool shift_key, bool cntrl_key, bool opt_key,
  56     int vkey_code, unichar key_char);
  57
  58 // This returns shortcuts that should work only if the tab contents have focus
  59 // (e.g. cmd-left, which shouldn't do history navigation if e.g. the omnibox has
  60 // focus).
  61 int CommandForBrowserKeyboardShortcut(
  62     bool command_key, bool shift_key, bool cntrl_key, bool opt_key,
  63     int vkey_code, unichar key_char);
  64
  65 // Returns a keyboard event character for the given |event|.  In most cases
  66 // this returns the first character of [NSEvent charactersIgnoringModifiers],
  67 // but when [NSEvent character] has different printable ascii character
  68 // we may return the first character of [NSEvent characters] instead.
  69 // (E.g. for dvorak-qwerty layout we want [NSEvent characters] rather than
  70 // [charactersIgnoringModifiers] for command keys.  Similarly, on german
  71 // layout we want '{' character rather than '8' for opt-8.)
  72 unichar KeyCharacterForEvent(NSEvent* event);
  73
  74 // For testing purposes.
  75 const KeyboardShortcutData* GetWindowKeyboardShortcutTable(size_t* num_entries);
  76 const KeyboardShortcutData*
  77     GetDelayedWindowKeyboardShortcutTable(size_t* num_entries);
  78 const KeyboardShortcutData*
  79     GetBrowserKeyboardShortcutTable(size_t* num_entries);
  80
  81 #endif  // #ifndef CHROME_BROWSER_GLOBAL_KEYBOARD_SHORTCUTS_MAC_H_