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      1 // Copyright (c) 2011 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 #include "content/public/browser/native_web_keyboard_event.h"
      6 
      7 #include "base/logging.h"
      8 #include "content/browser/renderer_host/web_input_event_aura.h"
      9 #include "ui/events/event.h"
     10 
     11 namespace {
     12 
     13 // We need to copy |os_event| in NativeWebKeyboardEvent because it is
     14 // queued in RenderWidgetHost and may be passed and used
     15 // RenderViewHostDelegate::HandledKeybardEvent after the original aura
     16 // event is destroyed.
     17 ui::Event* CopyEvent(ui::Event* event) {
     18   return event ? new ui::KeyEvent(*static_cast<ui::KeyEvent*>(event)) : NULL;
     19 }
     20 
     21 int EventFlagsToWebInputEventModifiers(int flags) {
     22   return
     23       (flags & ui::EF_SHIFT_DOWN ? blink::WebInputEvent::ShiftKey : 0) |
     24       (flags & ui::EF_CONTROL_DOWN ? blink::WebInputEvent::ControlKey : 0) |
     25       (flags & ui::EF_CAPS_LOCK_DOWN ? blink::WebInputEvent::CapsLockOn : 0) |
     26       (flags & ui::EF_ALT_DOWN ? blink::WebInputEvent::AltKey : 0);
     27 }
     28 
     29 }  // namespace
     30 
     31 using blink::WebKeyboardEvent;
     32 
     33 namespace content {
     34 
     35 NativeWebKeyboardEvent::NativeWebKeyboardEvent()
     36     : os_event(NULL),
     37       skip_in_browser(false),
     38       match_edit_command(false) {
     39 }
     40 
     41 NativeWebKeyboardEvent::NativeWebKeyboardEvent(gfx::NativeEvent native_event)
     42     : WebKeyboardEvent(MakeWebKeyboardEvent(
     43           static_cast<ui::KeyEvent*>(native_event))),
     44       os_event(CopyEvent(native_event)),
     45       skip_in_browser(false),
     46       match_edit_command(false) {
     47 }
     48 
     49 NativeWebKeyboardEvent::NativeWebKeyboardEvent(
     50     const NativeWebKeyboardEvent& other)
     51     : WebKeyboardEvent(other),
     52       os_event(CopyEvent(other.os_event)),
     53       skip_in_browser(other.skip_in_browser),
     54       match_edit_command(false) {
     55 }
     56 
     57 NativeWebKeyboardEvent::NativeWebKeyboardEvent(
     58     ui::EventType key_event_type,
     59     bool is_char,
     60     wchar_t character,
     61     int state,
     62     double time_stamp_seconds)
     63     : os_event(NULL),
     64       skip_in_browser(false),
     65       match_edit_command(false) {
     66   switch (key_event_type) {
     67     case ui::ET_KEY_PRESSED:
     68       type = is_char ? blink::WebInputEvent::Char :
     69           blink::WebInputEvent::RawKeyDown;
     70       break;
     71     case ui::ET_KEY_RELEASED:
     72       type = blink::WebInputEvent::KeyUp;
     73       break;
     74     default:
     75       NOTREACHED();
     76   }
     77 
     78   modifiers = EventFlagsToWebInputEventModifiers(state);
     79   timeStampSeconds = time_stamp_seconds;
     80   windowsKeyCode = character;
     81   nativeKeyCode = character;
     82   text[0] = character;
     83   unmodifiedText[0] = character;
     84   isSystemKey =
     85       (state & ui::EF_ALT_DOWN) != 0 && (state & ui::EF_ALTGR_DOWN) == 0;
     86   setKeyIdentifierFromWindowsKeyCode();
     87 }
     88 
     89 NativeWebKeyboardEvent& NativeWebKeyboardEvent::operator=(
     90     const NativeWebKeyboardEvent& other) {
     91   WebKeyboardEvent::operator=(other);
     92   delete os_event;
     93   os_event = CopyEvent(other.os_event);
     94   skip_in_browser = other.skip_in_browser;
     95   match_edit_command = other.match_edit_command;
     96   return *this;
     97 }
     98 
     99 NativeWebKeyboardEvent::~NativeWebKeyboardEvent() {
    100   delete os_event;
    101 }
    102 
    103 }  // namespace content
    104