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// Copyright 2014 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/window/window_button_order_provider.h"
#include "ui/views/linux_ui/linux_ui.h"
#include "ui/views/linux_ui/window_button_order_observer.h"
namespace views {
namespace {
class WindowButtonOrderObserverDelegate : public WindowButtonOrderProvider,
public WindowButtonOrderObserver {
public:
WindowButtonOrderObserverDelegate();
~WindowButtonOrderObserverDelegate() override;
// WindowButtonOrderObserver:
void OnWindowButtonOrderingChange(
const std::vector<views::FrameButton>& leading_buttons,
const std::vector<views::FrameButton>& trailing_buttons) override;
private:
DISALLOW_COPY_AND_ASSIGN(WindowButtonOrderObserverDelegate);
};
///////////////////////////////////////////////////////////////////////////////
// WindowButtonOrderObserverDelegate, public:
WindowButtonOrderObserverDelegate::WindowButtonOrderObserverDelegate() {
views::LinuxUI* ui = views::LinuxUI::instance();
if (ui)
ui->AddWindowButtonOrderObserver(this);
}
WindowButtonOrderObserverDelegate::~WindowButtonOrderObserverDelegate() {
views::LinuxUI* ui = views::LinuxUI::instance();
if (ui)
ui->RemoveWindowButtonOrderObserver(this);
}
void WindowButtonOrderObserverDelegate::OnWindowButtonOrderingChange(
const std::vector<views::FrameButton>& leading_buttons,
const std::vector<views::FrameButton>& trailing_buttons) {
SetWindowButtonOrder(leading_buttons, trailing_buttons);
}
} // namespace
// static
WindowButtonOrderProvider* WindowButtonOrderProvider::instance_ = NULL;
///////////////////////////////////////////////////////////////////////////////
// WindowButtonOrderProvider, public:
// static
WindowButtonOrderProvider* WindowButtonOrderProvider::GetInstance() {
if (!instance_)
instance_ = new WindowButtonOrderObserverDelegate;
return instance_;
}
///////////////////////////////////////////////////////////////////////////////
// WindowButtonOrderProvider, protected:
WindowButtonOrderProvider::WindowButtonOrderProvider() {
trailing_buttons_.push_back(views::FRAME_BUTTON_MINIMIZE);
trailing_buttons_.push_back(views::FRAME_BUTTON_MAXIMIZE);
trailing_buttons_.push_back(views::FRAME_BUTTON_CLOSE);
}
WindowButtonOrderProvider::~WindowButtonOrderProvider() {
}
void WindowButtonOrderProvider::SetWindowButtonOrder(
const std::vector<views::FrameButton>& leading_buttons,
const std::vector<views::FrameButton>& trailing_buttons) {
leading_buttons_ = leading_buttons;
trailing_buttons_ = trailing_buttons;
}
} // namespace views
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