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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/views/ime/input_method_base.h"
#include "base/logging.h"
#include "ui/base/events/event.h"
#include "ui/base/ime/text_input_client.h"
#include "ui/views/view.h"
#include "ui/views/widget/widget.h"
namespace views {
InputMethodBase::InputMethodBase() : delegate_(NULL), widget_(NULL) {}
InputMethodBase::~InputMethodBase() {
widget_->GetFocusManager()->RemoveFocusChangeListener(this);
widget_ = NULL;
}
void InputMethodBase::SetDelegate(internal::InputMethodDelegate* delegate) {
DCHECK(delegate);
delegate_ = delegate;
}
void InputMethodBase::Init(Widget* widget) {
DCHECK(widget);
DCHECK(widget->GetFocusManager());
DCHECK(!widget_) << "The input method is already initialized.";
widget_ = widget;
// Alert the InputMethod of the Widget's currently focused view.
View* focused = widget->GetFocusManager()->GetFocusedView();
if (focused)
OnWillChangeFocus(NULL, focused);
widget->GetFocusManager()->AddFocusChangeListener(this);
}
views::View* InputMethodBase::GetFocusedView() const {
return widget_->GetFocusManager()->GetFocusedView();
}
void InputMethodBase::OnTextInputTypeChanged(View* view) {}
ui::TextInputClient* InputMethodBase::GetTextInputClient() const {
return (widget_->IsActive() && GetFocusedView()) ?
GetFocusedView()->GetTextInputClient() : NULL;
}
ui::TextInputType InputMethodBase::GetTextInputType() const {
ui::TextInputClient* client = GetTextInputClient();
return client ? client->GetTextInputType() : ui::TEXT_INPUT_TYPE_NONE;
}
bool InputMethodBase::IsMock() const {
return false;
}
void InputMethodBase::OnWillChangeFocus(View* focused_before, View* focused) {}
void InputMethodBase::OnDidChangeFocus(View* focused_before, View* focused) {}
bool InputMethodBase::IsViewFocused(View* view) const {
return widget_->IsActive() && view && GetFocusedView() == view;
}
bool InputMethodBase::IsTextInputTypeNone() const {
return GetTextInputType() == ui::TEXT_INPUT_TYPE_NONE;
}
void InputMethodBase::OnInputMethodChanged() const {
ui::TextInputClient* client = GetTextInputClient();
if (client && client->GetTextInputType() != ui::TEXT_INPUT_TYPE_NONE)
client->OnInputMethodChanged();
}
void InputMethodBase::DispatchKeyEventPostIME(const ui::KeyEvent& key) const {
if (delegate_)
delegate_->DispatchKeyEventPostIME(key);
}
bool InputMethodBase::GetCaretBoundsInWidget(gfx::Rect* rect) const {
DCHECK(rect);
ui::TextInputClient* client = GetTextInputClient();
if (!client || client->GetTextInputType() == ui::TEXT_INPUT_TYPE_NONE)
return false;
gfx::Rect caret_bounds = client->GetCaretBounds();
gfx::Point caret_origin = caret_bounds.origin();
View::ConvertPointFromScreen(GetFocusedView(), &caret_origin);
caret_bounds.set_origin(caret_origin);
*rect = GetFocusedView()->ConvertRectToWidget(caret_bounds);
// Convert coordinates if the focused view is inside a child Widget.
if (GetFocusedView()->GetWidget() != widget_)
return Widget::ConvertRect(GetFocusedView()->GetWidget(), widget_, rect);
return true;
}
} // namespace views
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