// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chrome/browser/ui/views/new_tab_footer/footer_web_view.h"

#include "base/metrics/histogram_functions.h"
#include "base/time/time.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/browser_element_identifiers.h"
#include "chrome/browser/ui/browser_window/public/browser_window_interface.h"
#include "chrome/browser/ui/webui/top_chrome/webui_contents_wrapper.h"
#include "chrome/browser/ui/webui/webui_embedding_context.h"
#include "chrome/common/webui_url_constants.h"
#include "chrome/grit/generated_resources.h"
#include "ui/base/metadata/metadata_impl_macros.h"
#include "ui/base/mojom/menu_source_type.mojom.h"
#include "ui/views/view_class_properties.h"

namespace new_tab_footer {

NewTabFooterWebView::NewTabFooterWebView(BrowserWindowInterface* browser)
    : views::WebView(browser->GetProfile()), browser_(browser) {
  SetProperty(views::kElementIdentifierKey, kNtpFooterViewElementId);
}

NewTabFooterWebView::~NewTabFooterWebView() {
  if (!contents_wrapper_) {
    return;
  }
  contents_wrapper_->web_contents()->WasHidden();
  contents_wrapper_->SetHost(nullptr);
  contents_wrapper_ = nullptr;
}

void NewTabFooterWebView::ShowUI(
    base::TimeTicks load_start,
    GURL url,
    base::WeakPtr<content::WebContents> attached_tab_contents) {
  attached_tab_url_ = url;
  attached_tab_contents_ = attached_tab_contents;
  ShowUI();
  base::UmaHistogramMediumTimes("NewTabPage.Footer.ShownTime",
                                base::TimeTicks::Now() - load_start);
}

void NewTabFooterWebView::ShowUI() {
  if (!contents_wrapper_) {
    contents_wrapper_ = std::make_unique<WebUIContentsWrapperT<NewTabFooterUI>>(
        GURL(chrome::kChromeUINewTabFooterURL), browser_->GetProfile(),
        IDS_NEW_TAB_FOOTER_NAME,
        /*esc_closes_ui=*/false);
    contents_wrapper_->SetHost(weak_factory_.GetWeakPtr());
    SetWebContents(contents_wrapper_->web_contents());
    webui::SetBrowserWindowInterface(contents_wrapper_->web_contents(),
                                     browser_);
  }

  if (!contents_wrapper_->GetWebUIController()) {
    return;
  }

  contents_wrapper_->GetWebUIController()->AttachedTabStateUpdated(
      attached_tab_url_);
  SetVisible(true);
  contents_wrapper_->web_contents()->WasShown();
}

void NewTabFooterWebView::CloseUI() {
  SetVisible(false);
  if (contents_wrapper_) {
    contents_wrapper_->web_contents()->WasHidden();
  }
}

void NewTabFooterWebView::ShowCustomContextMenu(
    gfx::Point point,
    std::unique_ptr<ui::MenuModel> menu_model) {
  ConvertPointToScreen(this, &point);
  context_menu_model_ = std::move(menu_model);
  context_menu_runner_ = std::make_unique<views::MenuRunner>(
      context_menu_model_.get(),
      views::MenuRunner::HAS_MNEMONICS | views::MenuRunner::CONTEXT_MENU,
      base::BindRepeating(&NewTabFooterWebView::HideCustomContextMenu,
                          weak_factory_.GetWeakPtr()));
  context_menu_runner_->RunMenuAt(
      GetWidget(), nullptr, gfx::Rect(point, gfx::Size()),
      views::MenuAnchorPosition::kTopLeft, ui::mojom::MenuSourceType::kMouse,
      contents_wrapper_->web_contents()->GetContentNativeView());
}

void NewTabFooterWebView::HideCustomContextMenu() {
  if (context_menu_runner_ && context_menu_runner_->IsRunning()) {
    context_menu_runner_->Cancel();
  }
  context_menu_runner_.reset();
  context_menu_model_.reset();
}

bool NewTabFooterWebView::HandleKeyboardEvent(
    content::WebContents* source,
    const input::NativeWebKeyboardEvent& event) {
  return unhandled_keyboard_event_handler_.HandleKeyboardEvent(
      event, GetFocusManager());
}

content::WebContents* NewTabFooterWebView::OpenURLFromTab(
    content::WebContents* source,
    const content::OpenURLParams& params,
    base::OnceCallback<void(content::NavigationHandle&)>
        navigation_handle_callback) {
  if (!attached_tab_contents_) {
    return nullptr;
  }
  return attached_tab_contents_->OpenURL(params,
                                         std::move(navigation_handle_callback));
}

BEGIN_METADATA(NewTabFooterWebView)
END_METADATA

}  // namespace new_tab_footer