// 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/utf_string_conversions.h"
#include "chrome/app/chrome_command_ids.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_commands.h"
#include "chrome/browser/ui/browser_tabstrip.h"
#include "chrome/common/url_constants.h"
#include "chrome/test/base/in_process_browser_test.h"
#include "chrome/test/base/ui_test_utils.h"
#include "content/public/browser/navigation_entry.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/notification_types.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/web_contents.h"
#include "content/public/test/browser_test_utils.h"
#include "googleurl/src/gurl.h"
#include "net/test/test_server.h"

namespace {
const char kTestHtml[] = "files/viewsource/test.html";
}

typedef InProcessBrowserTest ViewSourceTest;

// This test renders a page in view-source and then checks to see if the title
// set in the html was set successfully (it shouldn't because we rendered the
// page in view source).
// Flaky; see http://crbug.com/72201.
IN_PROC_BROWSER_TEST_F(ViewSourceTest, DoesBrowserRenderInViewSource) {
  ASSERT_TRUE(test_server()->Start());

  // First we navigate to our view-source test page.
  GURL url(chrome::kViewSourceScheme + std::string(":") +
      test_server()->GetURL(kTestHtml).spec());
  ui_test_utils::NavigateToURL(browser(), url);

  // Check that the title didn't get set.  It should not be there (because we
  // are in view-source mode).
  EXPECT_NE(ASCIIToUTF16("foo"),
            chrome::GetActiveWebContents(browser())->GetTitle());
}

// This test renders a page normally and then renders the same page in
// view-source mode. This is done since we had a problem at one point during
// implementation of the view-source: prefix being consumed (removed from the
// URL) if the URL was not changed (apart from adding the view-source prefix)
IN_PROC_BROWSER_TEST_F(ViewSourceTest, DoesBrowserConsumeViewSourcePrefix) {
  ASSERT_TRUE(test_server()->Start());

  // First we navigate to google.html.
  GURL url(test_server()->GetURL(kTestHtml));
  ui_test_utils::NavigateToURL(browser(), url);

  // Then we navigate to the same url but with the "view-source:" prefix.
  GURL url_viewsource(chrome::kViewSourceScheme + std::string(":") +
      url.spec());
  ui_test_utils::NavigateToURL(browser(), url_viewsource);

  // The URL should still be prefixed with "view-source:".
  EXPECT_EQ(url_viewsource.spec(),
            chrome::GetActiveWebContents(browser())->GetURL().spec());
}

// Make sure that when looking at the actual page, we can select "View Source"
// from the menu.
IN_PROC_BROWSER_TEST_F(ViewSourceTest, ViewSourceInMenuEnabledOnANormalPage) {
  ASSERT_TRUE(test_server()->Start());

  GURL url(test_server()->GetURL(kTestHtml));
  ui_test_utils::NavigateToURL(browser(), url);

  EXPECT_TRUE(chrome::CanViewSource(browser()));
}

// Make sure that when looking at the page source, we can't select "View Source"
// from the menu.
IN_PROC_BROWSER_TEST_F(ViewSourceTest,
                       ViewSourceInMenuDisabledWhileViewingSource) {
  ASSERT_TRUE(test_server()->Start());

  GURL url_viewsource(chrome::kViewSourceScheme + std::string(":") +
      test_server()->GetURL(kTestHtml).spec());
  ui_test_utils::NavigateToURL(browser(), url_viewsource);

  EXPECT_FALSE(chrome::CanViewSource(browser()));
}

// Tests that reload initiated by the script on the view-source page leaves
// the page in view-source mode.
// Times out on Mac, Windows, ChromeOS Linux: crbug.com/162080
IN_PROC_BROWSER_TEST_F(ViewSourceTest, DISABLED_TestViewSourceReload) {
  ASSERT_TRUE(test_server()->Start());

  GURL url_viewsource(chrome::kViewSourceScheme + std::string(":") +
      test_server()->GetURL(kTestHtml).spec());

  content::WindowedNotificationObserver observer(
      content::NOTIFICATION_LOAD_STOP,
      content::NotificationService::AllSources());
  ui_test_utils::NavigateToURL(browser(), url_viewsource);
  observer.Wait();

  content::RenderViewHost* rvh =
      chrome::GetWebContentsAt(browser(), 0)->GetRenderViewHost();

  ASSERT_TRUE(
      content::ExecuteJavaScript(rvh,
                                 L"",
                                 L"window.location.reload();"));

  content::WindowedNotificationObserver observer2(
      content::NOTIFICATION_LOAD_STOP,
      content::NotificationService::AllSources());
  observer2.Wait();
  ASSERT_TRUE(chrome::GetWebContentsAt(browser(), 0)->GetController().
                  GetActiveEntry()->IsViewSourceMode());
}