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// Copyright 2013 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 "chrome/browser/chromeos/input_method/mode_indicator_controller.h"
#include "ash/ime/mode_indicator_view.h"
#include "ash/shell.h"
#include "ash/shell_window_ids.h"
#include "ash/wm/window_util.h"
#include "base/command_line.h"
#include "base/logging.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/browser/chromeos/input_method/input_method_util.h"
#include "chromeos/chromeos_switches.h"
namespace chromeos {
namespace input_method {
namespace {
ModeIndicatorObserverInterface* g_mode_indicator_observer_for_testing_ = NULL;
} // namespace
class ModeIndicatorObserver : public ModeIndicatorObserverInterface {
public:
ModeIndicatorObserver()
: active_widget_(NULL) {}
virtual ~ModeIndicatorObserver() {
if (active_widget_)
active_widget_->RemoveObserver(this);
}
// If other active mode indicator widget is shown, close it immedicately
// without fading animation. Then store this widget as the active widget.
virtual void AddModeIndicatorWidget(views::Widget* widget) OVERRIDE {
DCHECK(widget);
if (active_widget_)
active_widget_->Close();
active_widget_ = widget;
widget->AddObserver(this);
}
// views::WidgetObserver override:
virtual void OnWidgetDestroying(views::Widget* widget) OVERRIDE {
if (widget == active_widget_)
active_widget_ = NULL;
}
private:
views::Widget* active_widget_;
};
ModeIndicatorController::ModeIndicatorController(InputMethodManager* imm)
: imm_(imm),
is_focused_(false),
mi_observer_(new ModeIndicatorObserver) {
DCHECK(imm_);
imm_->AddObserver(this);
}
ModeIndicatorController::~ModeIndicatorController() {
imm_->RemoveObserver(this);
}
void ModeIndicatorController::SetCursorBounds(
const gfx::Rect& cursor_bounds) {
cursor_bounds_ = cursor_bounds;
}
void ModeIndicatorController::FocusStateChanged(bool is_focused) {
is_focused_ = is_focused;
}
// static
void ModeIndicatorController::SetModeIndicatorObserverForTesting(
ModeIndicatorObserverInterface* observer) {
g_mode_indicator_observer_for_testing_ = observer;
}
// static
ModeIndicatorObserverInterface*
ModeIndicatorController::GetModeIndicatorObserverForTesting() {
return g_mode_indicator_observer_for_testing_;
}
void ModeIndicatorController::InputMethodChanged(InputMethodManager* manager,
bool show_message) {
if (!show_message)
return;
ShowModeIndicator();
}
void ModeIndicatorController::InputMethodPropertyChanged(
InputMethodManager* manager) {
// Do nothing.
}
void ModeIndicatorController::ShowModeIndicator() {
// TODO(komatsu): When this is permanently enabled by defalut,
// delete command_line.h and chromeos_switches.h from the header
// files.
if (CommandLine::ForCurrentProcess()->HasSwitch(
switches::kDisableIMEModeIndicator))
return;
// TODO(komatsu): Show the mode indicator in the right bottom of the
// display when the launch bar is hidden and the focus is out. To
// implement it, we should consider to use message center or system
// notification. Note, launch bar can be vertical and can be placed
// right/left side of display.
if (!is_focused_)
return;
// Get the short name of the changed input method (e.g. US, JA, etc.)
const InputMethodDescriptor descriptor = imm_->GetCurrentInputMethod();
const base::string16 short_name =
imm_->GetInputMethodUtil()->GetInputMethodShortName(descriptor);
aura::Window* parent = ash::Shell::GetContainer(
ash::wm::GetActiveWindow()->GetRootWindow(),
ash::internal::kShellWindowId_InputMethodContainer);
ash::ime::ModeIndicatorView* mi_view = new ash::ime::ModeIndicatorView(
parent, cursor_bounds_, short_name);
views::BubbleDelegateView::CreateBubble(mi_view);
views::Widget* mi_widget = mi_view->GetWidget();
if (GetModeIndicatorObserverForTesting())
GetModeIndicatorObserverForTesting()->AddModeIndicatorWidget(mi_widget);
mi_observer_->AddModeIndicatorWidget(mi_widget);
mi_view->ShowAndFadeOut();
}
} // namespace input_method
} // namespace chromeos
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