// Copyright (c) 2012 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 "base/command_line.h"
#include "base/path_service.h"
#include "base/utf_string_conversions.h"
#include "chrome/browser/api/infobars/confirm_infobar_delegate.h"
#include "chrome/browser/api/infobars/infobar_service.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_commands.h"
#include "chrome/browser/ui/browser_navigator.h"
#include "chrome/browser/ui/browser_tabstrip.h"
#include "chrome/common/chrome_notification_types.h"
#include "chrome/common/chrome_paths.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/url_constants.h"
#include "chrome/test/base/in_process_browser_test.h"
#include "chrome/test/base/test_launcher_utils.h"
#include "chrome/test/base/ui_test_utils.h"
#include "content/public/browser/gpu_data_manager.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/notification_types.h"
#include "content/public/common/content_paths.h"
#include "content/public/common/page_transition_types.h"
#include "content/public/test/browser_test_utils.h"
#include "content/test/gpu/gpu_test_config.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gl/gl_implementation.h"

namespace {

void SimulateGPUCrash(Browser* browser) {
  // None of the ui_test_utils entry points supports what we need to
  // do here: navigate with the PAGE_TRANSITION_FROM_ADDRESS_BAR flag,
  // without waiting for the navigation. It would be painful to change
  // either of the NavigateToURL entry points to support these two
  // constraints, so we use chrome::Navigate directly.
  chrome::NavigateParams params(
      browser,
      GURL(chrome::kChromeUIGpuCrashURL),
      static_cast<content::PageTransition>(
          content::PAGE_TRANSITION_TYPED |
          content::PAGE_TRANSITION_FROM_ADDRESS_BAR));
  params.disposition = NEW_BACKGROUND_TAB;
  chrome::Navigate(&params);
}

} // namespace

class WebGLInfobarTest : public InProcessBrowserTest {
 protected:
  virtual void SetUpCommandLine(CommandLine* command_line) {
    // GPU tests require gpu acceleration.
    // We do not care which GL backend is used.
    command_line->AppendSwitchASCII(switches::kUseGL, "any");
  }
  virtual void SetUpInProcessBrowserTestFixture() {
    FilePath test_dir;
    ASSERT_TRUE(PathService::Get(content::DIR_TEST_DATA, &test_dir));
    gpu_test_dir_ = test_dir.AppendASCII("gpu");
  }
  FilePath gpu_test_dir_;
};

IN_PROC_BROWSER_TEST_F(WebGLInfobarTest, ContextLossRaisesInfobar) {
  // crbug.com/162982, flaky on Mac Retina Release.
  if (GPUTestBotConfig::CurrentConfigMatches("MAC NVIDIA 0x0fd5 RELEASE"))
    return;

  // Load page and wait for it to load.
  content::WindowedNotificationObserver observer(
      content::NOTIFICATION_LOAD_STOP,
      content::NotificationService::AllSources());
  ui_test_utils::NavigateToURL(
      browser(),
      content::GetFileUrlWithQuery(
          gpu_test_dir_.AppendASCII("webgl.html"), "query=kill"));
  observer.Wait();

  content::WindowedNotificationObserver infobar_added(
        chrome::NOTIFICATION_TAB_CONTENTS_INFOBAR_ADDED,
        content::NotificationService::AllSources());
  SimulateGPUCrash(browser());
  infobar_added.Wait();
  EXPECT_EQ(1u,
            InfoBarService::FromWebContents(
                chrome::GetActiveWebContents(browser()))->GetInfoBarCount());
}

IN_PROC_BROWSER_TEST_F(WebGLInfobarTest, ContextLossInfobarReload) {
  // crbug.com/162982, flaky on Mac Retina Release.
  if (GPUTestBotConfig::CurrentConfigMatches("MAC NVIDIA 0x0fd5 RELEASE"))
    return;

  content::DOMMessageQueue message_queue;

  // Load page and wait for it to load.
  content::WindowedNotificationObserver observer(
      content::NOTIFICATION_LOAD_STOP,
      content::NotificationService::AllSources());
  ui_test_utils::NavigateToURL(
      browser(),
      content::GetFileUrlWithQuery(
          gpu_test_dir_.AppendASCII("webgl.html"),
          "query=kill_after_notification"));
  observer.Wait();

  std::string m;
  ASSERT_TRUE(message_queue.WaitForMessage(&m));
  EXPECT_EQ("\"LOADED\"", m);

  message_queue.ClearQueue();

  content::WindowedNotificationObserver infobar_added(
        chrome::NOTIFICATION_TAB_CONTENTS_INFOBAR_ADDED,
        content::NotificationService::AllSources());
  SimulateGPUCrash(browser());
  infobar_added.Wait();
  ASSERT_EQ(1u,
            InfoBarService::FromWebContents(
                chrome::GetActiveWebContents(browser()))->GetInfoBarCount());
  InfoBarDelegate* delegate =
      InfoBarService::FromWebContents(
          chrome::GetActiveWebContents(browser()))->GetInfoBarDelegateAt(0);
  ASSERT_TRUE(delegate);
  ASSERT_TRUE(delegate->AsThreeDAPIInfoBarDelegate());
  delegate->AsConfirmInfoBarDelegate()->Cancel();

  // The page should reload and another message sent to the
  // DomAutomationController.
  m = "";
  ASSERT_TRUE(message_queue.WaitForMessage(&m));
  EXPECT_EQ("\"LOADED\"", m);
}

// There isn't any point in adding a test which calls Accept() on the
// ThreeDAPIInfoBarDelegate; doing so doesn't remove the infobar, and
// there's no concrete event that could be observed in response.