// Copyright 2017 The Chromium Embedded Framework 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 "libcef/browser/extensions/browser_platform_delegate_background.h"

#include <utility>

#include "libcef/browser/alloy/alloy_browser_host_impl.h"
#include "libcef/browser/thread_util.h"
#include "libcef/features/runtime_checks.h"

#include "content/public/browser/render_view_host.h"
#include "content/public/browser/render_widget_host.h"

CefBrowserPlatformDelegateBackground::CefBrowserPlatformDelegateBackground(
    std::unique_ptr<CefBrowserPlatformDelegateNative> native_delegate)
    : native_delegate_(std::move(native_delegate)) {
  REQUIRE_ALLOY_RUNTIME();
  native_delegate_->set_windowless_handler(this);
}

bool CefBrowserPlatformDelegateBackground::CreateHostWindow() {
  // Nothing to do here.
  return true;
}

void CefBrowserPlatformDelegateBackground::CloseHostWindow() {
  // No host window, so continue browser destruction now. Do it asynchronously
  // so the call stack has a chance to unwind.
  CEF_POST_TASK(
      CEF_UIT, base::BindOnce(&AlloyBrowserHostImpl::WindowDestroyed,
                              AlloyBrowserHostImpl::FromBaseChecked(browser_)));
}

CefWindowHandle CefBrowserPlatformDelegateBackground::GetHostWindowHandle()
    const {
  return kNullWindowHandle;
}

SkColor CefBrowserPlatformDelegateBackground::GetBackgroundColor() const {
  return native_delegate_->GetBackgroundColor();
}

void CefBrowserPlatformDelegateBackground::WasResized() {
  // Nothing to do here.
}

void CefBrowserPlatformDelegateBackground::SendKeyEvent(
    const CefKeyEvent& event) {
  // Nothing to do here.
}

void CefBrowserPlatformDelegateBackground::SendMouseClickEvent(
    const CefMouseEvent& event,
    CefBrowserHost::MouseButtonType type,
    bool mouseUp,
    int clickCount) {
  // Nothing to do here.
}

void CefBrowserPlatformDelegateBackground::SendMouseMoveEvent(
    const CefMouseEvent& event,
    bool mouseLeave) {
  // Nothing to do here.
}

void CefBrowserPlatformDelegateBackground::SendMouseWheelEvent(
    const CefMouseEvent& event,
    int deltaX,
    int deltaY) {
  // Nothing to do here.
}

void CefBrowserPlatformDelegateBackground::SendTouchEvent(
    const CefTouchEvent& event) {
  // Nothing to do here.
}

void CefBrowserPlatformDelegateBackground::SetFocus(bool setFocus) {
  // Nothing to do here.
}

gfx::Point CefBrowserPlatformDelegateBackground::GetScreenPoint(
    const gfx::Point& view_pt,
    bool want_dip_coords) const {
  // Nothing to do here.
  return view_pt;
}

void CefBrowserPlatformDelegateBackground::ViewText(const std::string& text) {
  native_delegate_->ViewText(text);
}

bool CefBrowserPlatformDelegateBackground::HandleKeyboardEvent(
    const content::NativeWebKeyboardEvent& event) {
  // Nothing to do here.
  return false;
}

CefEventHandle CefBrowserPlatformDelegateBackground::GetEventHandle(
    const content::NativeWebKeyboardEvent& event) const {
  return native_delegate_->GetEventHandle(event);
}

std::unique_ptr<CefMenuRunner>
CefBrowserPlatformDelegateBackground::CreateMenuRunner() {
  // No default menu implementation for background browsers.
  return nullptr;
}

CefWindowHandle CefBrowserPlatformDelegateBackground::GetParentWindowHandle()
    const {
  return GetHostWindowHandle();
}

gfx::Point CefBrowserPlatformDelegateBackground::GetParentScreenPoint(
    const gfx::Point& view,
    bool want_dip_coords) const {
  return GetScreenPoint(view, want_dip_coords);
}