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// Copyright (c) 2012 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/base/ime/fake_input_method.h"
#include "base/logging.h"
#include "base/strings/string16.h"
#include "ui/base/events/event.h"
#include "ui/base/events/event_constants.h"
#include "ui/base/events/event_utils.h"
#include "ui/base/glib/glib_integers.h"
#include "ui/base/ime/input_method_delegate.h"
#include "ui/base/ime/text_input_client.h"
#include "ui/base/keycodes/keyboard_code_conversion.h"
#if defined(USE_X11)
#include <X11/X.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include "ui/base/keycodes/keyboard_code_conversion_x.h"
#endif
namespace {
#if defined(USE_X11)
uint32 EventFlagsFromXFlags(unsigned int flags) {
return (flags & LockMask ? ui::EF_CAPS_LOCK_DOWN : 0U) |
(flags & ControlMask ? ui::EF_CONTROL_DOWN : 0U) |
(flags & ShiftMask ? ui::EF_SHIFT_DOWN : 0U) |
(flags & Mod1Mask ? ui::EF_ALT_DOWN : 0U);
}
#endif
} // namespace
namespace ui {
FakeInputMethod::FakeInputMethod(internal::InputMethodDelegate* delegate)
: delegate_(NULL),
text_input_client_(NULL) {
SetDelegate(delegate);
}
FakeInputMethod::~FakeInputMethod() {
}
void FakeInputMethod::SetDelegate(internal::InputMethodDelegate* delegate) {
delegate_ = delegate;
}
void FakeInputMethod::SetFocusedTextInputClient(TextInputClient* client) {
text_input_client_ = client;
FOR_EACH_OBSERVER(InputMethodObserver, observers_,
OnTextInputStateChanged(client));
}
TextInputClient* FakeInputMethod::GetTextInputClient() const {
return text_input_client_;
}
bool FakeInputMethod::DispatchKeyEvent(const base::NativeEvent& native_event) {
bool handled = false;
#if defined(OS_WIN)
if (native_event.message == WM_CHAR) {
if (text_input_client_) {
text_input_client_->InsertChar(ui::KeyboardCodeFromNative(native_event),
ui::EventFlagsFromNative(native_event));
handled = true;
}
} else {
handled = delegate_->DispatchKeyEventPostIME(native_event);
}
#elif defined(USE_X11)
DCHECK(native_event);
if (native_event->type == KeyRelease) {
// On key release, just dispatch it.
handled = delegate_->DispatchKeyEventPostIME(native_event);
} else {
const uint32 state = EventFlagsFromXFlags(native_event->xkey.state);
// Send a RawKeyDown event first,
handled = delegate_->DispatchKeyEventPostIME(native_event);
if (text_input_client_) {
// then send a Char event via ui::TextInputClient.
const KeyboardCode key_code = ui::KeyboardCodeFromNative(native_event);
uint16 ch = 0;
if (!(state & ui::EF_CONTROL_DOWN))
ch = ui::GetCharacterFromXEvent(native_event);
if (!ch)
ch = ui::GetCharacterFromKeyCode(key_code, state);
if (ch)
text_input_client_->InsertChar(ch, state);
}
}
#else
// TODO(yusukes): Support other platforms. Call InsertChar() when necessary.
handled = delegate_->DispatchKeyEventPostIME(native_event);
#endif
return handled;
}
bool FakeInputMethod::DispatchFabricatedKeyEvent(const ui::KeyEvent& event) {
bool handled = delegate_->DispatchFabricatedKeyEventPostIME(
event.type(), event.key_code(), event.flags());
if (event.type() == ET_KEY_PRESSED && text_input_client_) {
uint16 ch = event.GetCharacter();
if (ch)
text_input_client_->InsertChar(ch, event.flags());
}
return handled;
}
void FakeInputMethod::Init(bool focused) {}
void FakeInputMethod::OnFocus() {}
void FakeInputMethod::OnBlur() {}
bool FakeInputMethod::OnUntranslatedIMEMessage(const base::NativeEvent& event,
NativeEventResult* result) {
return false;
}
void FakeInputMethod::OnTextInputTypeChanged(const TextInputClient* client) {
FOR_EACH_OBSERVER(InputMethodObserver, observers_,
OnTextInputStateChanged(client));
}
void FakeInputMethod::OnCaretBoundsChanged(const TextInputClient* client) {}
void FakeInputMethod::CancelComposition(const TextInputClient* client) {}
void FakeInputMethod::OnInputLocaleChanged() {}
std::string FakeInputMethod::GetInputLocale() {
return "";
}
base::i18n::TextDirection FakeInputMethod::GetInputTextDirection() {
return base::i18n::UNKNOWN_DIRECTION;
}
bool FakeInputMethod::IsActive() {
return true;
}
ui::TextInputType FakeInputMethod::GetTextInputType() const {
return ui::TEXT_INPUT_TYPE_NONE;
}
bool FakeInputMethod::CanComposeInline() const {
return true;
}
void FakeInputMethod::AddObserver(InputMethodObserver* observer) {
observers_.AddObserver(observer);
}
void FakeInputMethod::RemoveObserver(InputMethodObserver* observer) {
observers_.RemoveObserver(observer);
}
} // namespace ui
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