chrome/browser/ui/views/frame/webui_tab_strip_container_view.cc

// Copyright 2019 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/ui/views/frame/webui_tab_strip_container_view.h"

#include "base/logging.h"
#include "chrome/app/chrome_command_ids.h"
#include "chrome/app/vector_icons/vector_icons.h"
#include "chrome/browser/extensions/chrome_extension_web_contents_observer.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/task_manager/web_contents_tags.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_commands.h"
#include "chrome/browser/ui/layout_constants.h"
#include "chrome/browser/ui/view_ids.h"
#include "chrome/browser/ui/views/toolbar/toolbar_button.h"
#include "chrome/common/webui_url_constants.h"
#include "chrome/grit/generated_resources.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/gfx/color_palette.h"
#include "ui/gfx/paint_vector_icon.h"
#include "ui/views/background.h"
#include "ui/views/controls/webview/webview.h"
#include "ui/views/layout/fill_layout.h"
#include "ui/views/layout/flex_layout.h"
#include "ui/views/view_class_properties.h"

WebUITabStripContainerView::WebUITabStripContainerView(Browser* browser)
    : browser_(browser),
      web_view_(
          AddChildView(std::make_unique<views::WebView>(browser->profile()))) {
  SetVisible(false);
  // TODO(crbug.com/1010589) WebContents are initially assumed to be visible by
  // default unless explicitly hidden. The WebContents need to be set to hidden
  // so that the visibility state of the document in JavaScript is correctly
  // initially set to 'hidden', and the 'visibilitychange' events correctly get
  // fired.
  web_view_->GetWebContents()->WasHidden();

  SetLayoutManager(std::make_unique<views::FillLayout>());
  web_view_->LoadInitialURL(GURL(chrome::kChromeUITabStripURL));
  extensions::ChromeExtensionWebContentsObserver::CreateForWebContents(
      web_view_->web_contents());
  task_manager::WebContentsTags::CreateForTabContents(
      web_view_->web_contents());
}

views::NativeViewHost* WebUITabStripContainerView::GetNativeViewHost() {
  return web_view_->holder();
}

std::unique_ptr<ToolbarButton>
WebUITabStripContainerView::CreateNewTabButton() {
  auto new_tab_button = std::make_unique<ToolbarButton>(this);
  new_tab_button->SetID(VIEW_ID_WEBUI_TAB_STRIP_NEW_TAB_BUTTON);
  new_tab_button->SetTooltipText(
      l10n_util::GetStringUTF16(IDS_TOOLTIP_NEW_TAB));
  return new_tab_button;
}

// TODO(crbug.com/992972): Replace this button with tab counter. Consider
// replacing the "toggle" string with a separate show/hide tooltip string.
std::unique_ptr<ToolbarButton>
WebUITabStripContainerView::CreateToggleButton() {
  auto toggle_button = std::make_unique<ToolbarButton>(this);
  toggle_button->SetID(VIEW_ID_WEBUI_TAB_STRIP_TOGGLE_BUTTON);
  toggle_button->SetTooltipText(
      l10n_util::GetStringUTF16(IDS_TOOLTIP_WEBUI_TAB_STRIP_TOGGLE_BUTTON));
  return toggle_button;
}

int WebUITabStripContainerView::GetHeightForWidth(int w) const {
  constexpr int kWebUITabStripHeightDp = 248;
  return kWebUITabStripHeightDp;
}

void WebUITabStripContainerView::ButtonPressed(views::Button* sender,
                                               const ui::Event& event) {
  if (sender->GetID() == VIEW_ID_WEBUI_TAB_STRIP_TOGGLE_BUTTON) {
    // TODO(pbos): Trigger a slide animation here.
    SetVisible(!GetVisible());
    InvalidateLayout();
  } else if (sender->GetID() == VIEW_ID_WEBUI_TAB_STRIP_NEW_TAB_BUTTON) {
    chrome::ExecuteCommand(browser_, IDC_NEW_TAB);
  } else {
    NOTREACHED();
  }
}