chrome/browser/ui/webui/print_preview/print_preview_ui_browsertest.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/command_line.h"
   6 #include "base/prefs/pref_service.h"
   7 #include "base/strings/utf_string_conversions.h"
   8 #include "chrome/app/chrome_command_ids.h"
   9 #include "chrome/browser/content_settings/host_content_settings_map.h"
  10 #include "chrome/browser/profiles/profile.h"
  11 #include "chrome/browser/ui/browser.h"
  12 #include "chrome/browser/ui/browser_commands.h"
  13 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  14 #include "chrome/common/chrome_switches.h"
  15 #include "chrome/common/pref_names.h"
  16 #include "chrome/common/url_constants.h"
  17 #include "chrome/test/base/in_process_browser_test.h"
  18 #include "chrome/test/base/ui_test_utils.h"
  19 #include "content/public/browser/web_contents.h"
  20 #include "content/public/browser/web_contents_observer.h"
  21 #include "content/public/test/browser_test_utils.h"
  22 #include "content/public/test/test_navigation_observer.h"
  23 #include "content/public/test/test_utils.h"
  24
  25 #if defined(OS_WIN) && defined(USE_AURA)
  26 #include "content/public/browser/web_contents_view.h"
  27 #include "ui/aura/root_window.h"
  28 #include "ui/aura/window.h"
  29 #endif
  30
  31 namespace {
  32
  33 class PrintPreviewTest : public InProcessBrowserTest {
  34  public:
  35   PrintPreviewTest() {}
  36
  37 #if !defined(GOOGLE_CHROME_BUILD)
  38   virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
  39     command_line->AppendSwitch(switches::kEnablePrintPreview);
  40   }
  41 #endif
  42
  43   void Print() {
  44     content::TestNavigationObserver nav_observer(NULL);
  45     nav_observer.StartWatchingNewWebContents();
  46     chrome::ExecuteCommand(browser(), IDC_PRINT);
  47     nav_observer.Wait();
  48     nav_observer.StopWatchingNewWebContents();
  49   }
  50 };
  51
  52 IN_PROC_BROWSER_TEST_F(PrintPreviewTest, PrintCommands) {
  53   // We start off at about:blank page.
  54   // Make sure there is 1 tab and print is enabled.
  55   ASSERT_EQ(1, browser()->tab_strip_model()->count());
  56
  57   ASSERT_TRUE(chrome::IsCommandEnabled(browser(), IDC_PRINT));
  58
  59   // Make sure advanced print command (Ctrl+Shift+p) is enabled.
  60   ASSERT_TRUE(chrome::IsCommandEnabled(browser(), IDC_ADVANCED_PRINT));
  61
  62   // Create the print preview dialog.
  63   Print();
  64
  65   // Make sure print is disabled.
  66   ASSERT_FALSE(chrome::IsCommandEnabled(browser(), IDC_PRINT));
  67
  68   // Make sure advanced print command (Ctrl+Shift+p) is enabled.
  69   ASSERT_TRUE(chrome::IsCommandEnabled(browser(), IDC_ADVANCED_PRINT));
  70
  71   content::TestNavigationObserver reload_observer(
  72       browser()->tab_strip_model()->GetActiveWebContents());
  73   chrome::Reload(browser(), CURRENT_TAB);
  74   reload_observer.Wait();
  75
  76   ASSERT_TRUE(chrome::IsCommandEnabled(browser(), IDC_PRINT));
  77
  78   // Make sure advanced print command (Ctrl+Shift+p) is enabled.
  79   ASSERT_TRUE(chrome::IsCommandEnabled(browser(), IDC_ADVANCED_PRINT));
  80 }
  81
  82 #if defined(OS_WIN) && defined(USE_AURA)
  83
  84 BOOL CALLBACK EnumerateChildren(HWND hwnd, LPARAM l_param) {
  85   HWND* child = reinterpret_cast<HWND*>(l_param);
  86   *child = hwnd;
  87   // The first child window is the plugin, then its children. So stop
  88   // enumerating after the first callback.
  89   return FALSE;
  90 }
  91
  92 // This test verifies that constrained windows aren't covered by windowed NPAPI
  93 // plugins. The code which fixes this is in WebContentsViewAura::WindowObserver.
  94 IN_PROC_BROWSER_TEST_F(PrintPreviewTest, WindowedNPAPIPluginHidden) {
  95   browser()->profile()->GetPrefs()->SetBoolean(prefs::kPluginsAlwaysAuthorize,
  96                                                true);
  97
  98   // First load the page and wait for the NPAPI plugin's window to display.
  99   base::string16 expected_title(base::ASCIIToUTF16("ready"));
 100   content::WebContents* tab =
 101       browser()->tab_strip_model()->GetActiveWebContents();
 102   content::TitleWatcher title_watcher(tab, expected_title);
 103
 104   GURL url = ui_test_utils::GetTestUrl(
 105       base::FilePath().AppendASCII("printing"),
 106       base::FilePath().AppendASCII("npapi_plugin.html"));
 107   ui_test_utils::NavigateToURL(browser(), url);
 108
 109   EXPECT_EQ(expected_title, title_watcher.WaitAndGetTitle());
 110
 111   // Now get the region of the plugin before and after the print preview is
 112   // shown. They should be different.
 113   HWND hwnd = tab->GetView()->GetNativeView()->GetDispatcher()->host()->
 114       GetAcceleratedWidget();
 115   HWND child = NULL;
 116   EnumChildWindows(hwnd, EnumerateChildren,reinterpret_cast<LPARAM>(&child));
 117
 118   RECT region_before, region_after;
 119   int result = GetWindowRgnBox(child, &region_before);
 120   ASSERT_EQ(result, SIMPLEREGION);
 121
 122   // Now print preview.
 123   Print();
 124
 125   result = GetWindowRgnBox(child, &region_after);
 126   if (result == NULLREGION) {
 127     // Depending on the browser window size, the plugin could be full covered.
 128     return;
 129   }
 130
 131   if (result == COMPLEXREGION) {
 132     // Complex region, by definition not equal to the initial region.
 133     return;
 134   }
 135
 136   ASSERT_EQ(result, SIMPLEREGION);
 137   bool rects_equal =
 138       region_before.left == region_after.left &&
 139       region_before.top == region_after.top &&
 140       region_before.right == region_after.right &&
 141       region_before.bottom == region_after.bottom;
 142   ASSERT_FALSE(rects_equal);
 143 }
 144
 145 IN_PROC_BROWSER_TEST_F(PrintPreviewTest, NoCrashOnCloseWithOtherTabs) {
 146   // Now print preview.
 147   Print();
 148
 149   ui_test_utils::NavigateToURLWithDisposition(
 150       browser(), GURL("about:blank"), NEW_FOREGROUND_TAB,
 151       ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
 152
 153   browser()->tab_strip_model()->ActivateTabAt(0, true);
 154
 155   // Navigate main tab to hide print preview.
 156   ui_test_utils::NavigateToURL(browser(), GURL("about:blank"));
 157
 158   browser()->tab_strip_model()->ActivateTabAt(1, true);
 159 }
 160 #endif
 161
 162 }  // namespace