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      1 // Copyright 2014 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 "apps/app_window_geometry_cache.h"
      6 #include "base/memory/scoped_ptr.h"
      7 #include "base/prefs/mock_pref_change_callback.h"
      8 #include "base/strings/string_number_conversions.h"
      9 #include "chrome/browser/extensions/test_extension_prefs.h"
     10 #include "chrome/test/base/testing_profile.h"
     11 #include "content/public/test/test_browser_thread.h"
     12 #include "content/public/test/test_utils.h"
     13 #include "extensions/browser/extension_prefs.h"
     14 #include "extensions/common/extension_builder.h"
     15 #include "extensions/common/value_builder.h"
     16 #include "testing/gtest/include/gtest/gtest.h"
     17 
     18 using content::BrowserThread;
     19 
     20 namespace apps {
     21 
     22 namespace {
     23 const char kWindowId[] = "windowid";
     24 const char kWindowId2[] = "windowid2";
     25 
     26 // Create a very simple extension with id.
     27 scoped_refptr<extensions::Extension> CreateExtension(const std::string& id) {
     28   return extensions::ExtensionBuilder()
     29       .SetManifest(extensions::DictionaryBuilder().Set("name", "test").Set(
     30           "version", "0.1"))
     31       .SetID(id)
     32       .Build();
     33 }
     34 
     35 }  // namespace
     36 
     37 // Base class for tests.
     38 class AppWindowGeometryCacheTest : public testing::Test {
     39  public:
     40   AppWindowGeometryCacheTest()
     41       : profile_(new TestingProfile),
     42         ui_thread_(BrowserThread::UI, &ui_message_loop_) {
     43     prefs_.reset(new extensions::TestExtensionPrefs(
     44         ui_message_loop_.message_loop_proxy().get()));
     45     cache_.reset(new AppWindowGeometryCache(profile_.get(), prefs_->prefs()));
     46     cache_->SetSyncDelayForTests(0);
     47   }
     48 
     49   void AddGeometryAndLoadExtension(const std::string& extension_id,
     50                                    const std::string& window_id,
     51                                    const gfx::Rect& bounds,
     52                                    const gfx::Rect& screen_bounds,
     53                                    ui::WindowShowState state);
     54 
     55   // Spins the UI threads' message loops to make sure any task
     56   // posted to sync the geometry to the value store gets a chance to run.
     57   void WaitForSync();
     58 
     59   void LoadExtension(const std::string& extension_id);
     60   void UnloadExtension(const std::string& extension_id);
     61 
     62  protected:
     63   scoped_ptr<TestingProfile> profile_;
     64   base::MessageLoopForUI ui_message_loop_;
     65   content::TestBrowserThread ui_thread_;
     66   scoped_ptr<extensions::TestExtensionPrefs> prefs_;
     67   scoped_ptr<AppWindowGeometryCache> cache_;
     68 };
     69 
     70 void AppWindowGeometryCacheTest::AddGeometryAndLoadExtension(
     71     const std::string& extension_id,
     72     const std::string& window_id,
     73     const gfx::Rect& bounds,
     74     const gfx::Rect& screen_bounds,
     75     ui::WindowShowState state) {
     76   scoped_ptr<base::DictionaryValue> dict(new base::DictionaryValue);
     77   base::DictionaryValue* value = new base::DictionaryValue;
     78   value->SetInteger("x", bounds.x());
     79   value->SetInteger("y", bounds.y());
     80   value->SetInteger("w", bounds.width());
     81   value->SetInteger("h", bounds.height());
     82   value->SetInteger("screen_bounds_x", screen_bounds.x());
     83   value->SetInteger("screen_bounds_y", screen_bounds.y());
     84   value->SetInteger("screen_bounds_w", screen_bounds.width());
     85   value->SetInteger("screen_bounds_h", screen_bounds.height());
     86   value->SetInteger("state", state);
     87   dict->SetWithoutPathExpansion(window_id, value);
     88   prefs_->prefs()->SetGeometryCache(extension_id, dict.Pass());
     89   LoadExtension(extension_id);
     90 }
     91 
     92 void AppWindowGeometryCacheTest::WaitForSync() {
     93   content::RunAllPendingInMessageLoop();
     94 }
     95 
     96 void AppWindowGeometryCacheTest::LoadExtension(
     97     const std::string& extension_id) {
     98   cache_->LoadGeometryFromStorage(extension_id);
     99   WaitForSync();
    100 }
    101 
    102 void AppWindowGeometryCacheTest::UnloadExtension(
    103     const std::string& extension_id) {
    104   scoped_refptr<extensions::Extension> extension =
    105       CreateExtension(extension_id);
    106   cache_->OnExtensionUnloaded(
    107       profile_.get(),
    108       extension.get(),
    109       extensions::UnloadedExtensionInfo::REASON_DISABLE);
    110   WaitForSync();
    111 }
    112 
    113 // Test getting geometry from an empty store.
    114 TEST_F(AppWindowGeometryCacheTest, GetGeometryEmptyStore) {
    115   const std::string extension_id = prefs_->AddExtensionAndReturnId("ext1");
    116   ASSERT_FALSE(cache_->GetGeometry(extension_id, kWindowId, NULL, NULL, NULL));
    117 }
    118 
    119 // Test getting geometry for an unknown extension.
    120 TEST_F(AppWindowGeometryCacheTest, GetGeometryUnkownExtension) {
    121   const std::string extension_id1 = prefs_->AddExtensionAndReturnId("ext1");
    122   const std::string extension_id2 = prefs_->AddExtensionAndReturnId("ext2");
    123   AddGeometryAndLoadExtension(extension_id1,
    124                               kWindowId,
    125                               gfx::Rect(4, 5, 31, 43),
    126                               gfx::Rect(0, 0, 1600, 900),
    127                               ui::SHOW_STATE_NORMAL);
    128   ASSERT_FALSE(cache_->GetGeometry(extension_id2, kWindowId, NULL, NULL, NULL));
    129 }
    130 
    131 // Test getting geometry for an unknown window in a known extension.
    132 TEST_F(AppWindowGeometryCacheTest, GetGeometryUnkownWindow) {
    133   const std::string extension_id = prefs_->AddExtensionAndReturnId("ext1");
    134   AddGeometryAndLoadExtension(extension_id,
    135                               kWindowId,
    136                               gfx::Rect(4, 5, 31, 43),
    137                               gfx::Rect(0, 0, 1600, 900),
    138                               ui::SHOW_STATE_NORMAL);
    139   ASSERT_FALSE(cache_->GetGeometry(extension_id, kWindowId2, NULL, NULL, NULL));
    140 }
    141 
    142 // Test that loading geometry, screen_bounds and state from the store works
    143 // correctly.
    144 TEST_F(AppWindowGeometryCacheTest, GetGeometryAndStateFromStore) {
    145   const std::string extension_id = prefs_->AddExtensionAndReturnId("ext1");
    146   gfx::Rect bounds(4, 5, 31, 43);
    147   gfx::Rect screen_bounds(0, 0, 1600, 900);
    148   ui::WindowShowState state = ui::SHOW_STATE_NORMAL;
    149   AddGeometryAndLoadExtension(
    150       extension_id, kWindowId, bounds, screen_bounds, state);
    151   gfx::Rect new_bounds;
    152   gfx::Rect new_screen_bounds;
    153   ui::WindowShowState new_state = ui::SHOW_STATE_DEFAULT;
    154   ASSERT_TRUE(cache_->GetGeometry(
    155       extension_id, kWindowId, &new_bounds, &new_screen_bounds, &new_state));
    156   ASSERT_EQ(bounds, new_bounds);
    157   ASSERT_EQ(screen_bounds, new_screen_bounds);
    158   ASSERT_EQ(state, new_state);
    159 }
    160 
    161 // Test corrupt bounds will not be loaded.
    162 TEST_F(AppWindowGeometryCacheTest, CorruptBounds) {
    163   const std::string extension_id = prefs_->AddExtensionAndReturnId("ext1");
    164   gfx::Rect bounds;
    165   gfx::Rect screen_bounds(0, 0, 1600, 900);
    166   ui::WindowShowState state = ui::SHOW_STATE_NORMAL;
    167   AddGeometryAndLoadExtension(
    168       extension_id, kWindowId, bounds, screen_bounds, state);
    169   gfx::Rect new_bounds;
    170   gfx::Rect new_screen_bounds;
    171   ui::WindowShowState new_state = ui::SHOW_STATE_DEFAULT;
    172   ASSERT_FALSE(cache_->GetGeometry(
    173       extension_id, kWindowId, &new_bounds, &new_screen_bounds, &new_state));
    174   ASSERT_TRUE(new_bounds.IsEmpty());
    175   ASSERT_TRUE(new_screen_bounds.IsEmpty());
    176   ASSERT_EQ(new_state, ui::SHOW_STATE_DEFAULT);
    177 }
    178 
    179 // Test corrupt screen bounds will not be loaded.
    180 TEST_F(AppWindowGeometryCacheTest, CorruptScreenBounds) {
    181   const std::string extension_id = prefs_->AddExtensionAndReturnId("ext1");
    182   gfx::Rect bounds(4, 5, 31, 43);
    183   gfx::Rect screen_bounds;
    184   ui::WindowShowState state = ui::SHOW_STATE_NORMAL;
    185   AddGeometryAndLoadExtension(
    186       extension_id, kWindowId, bounds, screen_bounds, state);
    187   gfx::Rect new_bounds;
    188   gfx::Rect new_screen_bounds;
    189   ui::WindowShowState new_state = ui::SHOW_STATE_DEFAULT;
    190   ASSERT_FALSE(cache_->GetGeometry(
    191       extension_id, kWindowId, &new_bounds, &new_screen_bounds, &new_state));
    192   ASSERT_TRUE(new_bounds.IsEmpty());
    193   ASSERT_TRUE(new_screen_bounds.IsEmpty());
    194   ASSERT_EQ(new_state, ui::SHOW_STATE_DEFAULT);
    195 }
    196 
    197 // Test corrupt state will not be loaded.
    198 TEST_F(AppWindowGeometryCacheTest, CorruptState) {
    199   const std::string extension_id = prefs_->AddExtensionAndReturnId("ext1");
    200   gfx::Rect bounds(4, 5, 31, 43);
    201   gfx::Rect screen_bounds(0, 0, 1600, 900);
    202   ui::WindowShowState state = ui::SHOW_STATE_DEFAULT;
    203   AddGeometryAndLoadExtension(
    204       extension_id, kWindowId, bounds, screen_bounds, state);
    205   gfx::Rect new_bounds;
    206   gfx::Rect new_screen_bounds;
    207   ui::WindowShowState new_state = ui::SHOW_STATE_DEFAULT;
    208   ASSERT_FALSE(cache_->GetGeometry(
    209       extension_id, kWindowId, &new_bounds, &new_screen_bounds, &new_state));
    210   ASSERT_TRUE(new_bounds.IsEmpty());
    211   ASSERT_TRUE(new_screen_bounds.IsEmpty());
    212   ASSERT_EQ(new_state, ui::SHOW_STATE_DEFAULT);
    213 }
    214 
    215 // Test saving geometry, screen_bounds and state to the cache and state store,
    216 // and reading it back.
    217 TEST_F(AppWindowGeometryCacheTest, SaveGeometryAndStateToStore) {
    218   const std::string extension_id = prefs_->AddExtensionAndReturnId("ext1");
    219   const std::string window_id(kWindowId);
    220 
    221   // inform cache of extension
    222   LoadExtension(extension_id);
    223 
    224   // update geometry stored in cache
    225   gfx::Rect bounds(4, 5, 31, 43);
    226   gfx::Rect screen_bounds(0, 0, 1600, 900);
    227   ui::WindowShowState state = ui::SHOW_STATE_NORMAL;
    228   cache_->SaveGeometry(extension_id, window_id, bounds, screen_bounds, state);
    229 
    230   // make sure that immediately reading back geometry works
    231   gfx::Rect new_bounds;
    232   gfx::Rect new_screen_bounds;
    233   ui::WindowShowState new_state = ui::SHOW_STATE_DEFAULT;
    234   ASSERT_TRUE(cache_->GetGeometry(
    235       extension_id, window_id, &new_bounds, &new_screen_bounds, &new_state));
    236   ASSERT_EQ(bounds, new_bounds);
    237   ASSERT_EQ(screen_bounds, new_screen_bounds);
    238   ASSERT_EQ(state, new_state);
    239 
    240   // unload extension to force cache to save data to the state store
    241   UnloadExtension(extension_id);
    242 
    243   // check if geometry got stored correctly in the state store
    244   const base::DictionaryValue* dict =
    245       prefs_->prefs()->GetGeometryCache(extension_id);
    246   ASSERT_TRUE(dict);
    247 
    248   ASSERT_TRUE(dict->HasKey(window_id));
    249   int v;
    250   ASSERT_TRUE(dict->GetInteger(window_id + ".x", &v));
    251   ASSERT_EQ(bounds.x(), v);
    252   ASSERT_TRUE(dict->GetInteger(window_id + ".y", &v));
    253   ASSERT_EQ(bounds.y(), v);
    254   ASSERT_TRUE(dict->GetInteger(window_id + ".w", &v));
    255   ASSERT_EQ(bounds.width(), v);
    256   ASSERT_TRUE(dict->GetInteger(window_id + ".h", &v));
    257   ASSERT_EQ(bounds.height(), v);
    258   ASSERT_TRUE(dict->GetInteger(window_id + ".screen_bounds_x", &v));
    259   ASSERT_EQ(screen_bounds.x(), v);
    260   ASSERT_TRUE(dict->GetInteger(window_id + ".screen_bounds_y", &v));
    261   ASSERT_EQ(screen_bounds.y(), v);
    262   ASSERT_TRUE(dict->GetInteger(window_id + ".screen_bounds_w", &v));
    263   ASSERT_EQ(screen_bounds.width(), v);
    264   ASSERT_TRUE(dict->GetInteger(window_id + ".screen_bounds_h", &v));
    265   ASSERT_EQ(screen_bounds.height(), v);
    266   ASSERT_TRUE(dict->GetInteger(window_id + ".state", &v));
    267   ASSERT_EQ(state, v);
    268 
    269   // reload extension
    270   LoadExtension(extension_id);
    271   // and make sure the geometry got reloaded properly too
    272   ASSERT_TRUE(cache_->GetGeometry(
    273       extension_id, window_id, &new_bounds, &new_screen_bounds, &new_state));
    274   ASSERT_EQ(bounds, new_bounds);
    275   ASSERT_EQ(screen_bounds, new_screen_bounds);
    276   ASSERT_EQ(state, new_state);
    277 }
    278 
    279 // Tests that we won't do writes to the state store for SaveGeometry calls
    280 // which don't change the state we already have.
    281 TEST_F(AppWindowGeometryCacheTest, NoDuplicateWrites) {
    282   using testing::_;
    283   using testing::Mock;
    284 
    285   const std::string extension_id = prefs_->AddExtensionAndReturnId("ext1");
    286   gfx::Rect bounds1(100, 200, 300, 400);
    287   gfx::Rect bounds2(200, 400, 600, 800);
    288   gfx::Rect bounds2_duplicate(200, 400, 600, 800);
    289 
    290   gfx::Rect screen_bounds1(0, 0, 1600, 900);
    291   gfx::Rect screen_bounds2(0, 0, 1366, 768);
    292   gfx::Rect screen_bounds2_duplicate(0, 0, 1366, 768);
    293 
    294   MockPrefChangeCallback observer(prefs_->pref_service());
    295   PrefChangeRegistrar registrar;
    296   registrar.Init(prefs_->pref_service());
    297   registrar.Add("extensions.settings", observer.GetCallback());
    298 
    299   // Write the first bounds - it should do > 0 writes.
    300   EXPECT_CALL(observer, OnPreferenceChanged(_));
    301   cache_->SaveGeometry(
    302       extension_id, kWindowId, bounds1, screen_bounds1, ui::SHOW_STATE_NORMAL);
    303   WaitForSync();
    304   Mock::VerifyAndClearExpectations(&observer);
    305 
    306   // Write a different bounds - it should also do > 0 writes.
    307   EXPECT_CALL(observer, OnPreferenceChanged(_));
    308   cache_->SaveGeometry(
    309       extension_id, kWindowId, bounds2, screen_bounds1, ui::SHOW_STATE_NORMAL);
    310   WaitForSync();
    311   Mock::VerifyAndClearExpectations(&observer);
    312 
    313   // Write a different screen bounds - it should also do > 0 writes.
    314   EXPECT_CALL(observer, OnPreferenceChanged(_));
    315   cache_->SaveGeometry(
    316       extension_id, kWindowId, bounds2, screen_bounds2, ui::SHOW_STATE_NORMAL);
    317   WaitForSync();
    318   Mock::VerifyAndClearExpectations(&observer);
    319 
    320   // Write a different state - it should also do > 0 writes.
    321   EXPECT_CALL(observer, OnPreferenceChanged(_));
    322   cache_->SaveGeometry(extension_id,
    323                        kWindowId,
    324                        bounds2,
    325                        screen_bounds2,
    326                        ui::SHOW_STATE_MAXIMIZED);
    327   WaitForSync();
    328   Mock::VerifyAndClearExpectations(&observer);
    329 
    330   // Write a bounds, screen bounds and state that's a duplicate of what we
    331   // already have. This should not do any writes.
    332   EXPECT_CALL(observer, OnPreferenceChanged(_)).Times(0);
    333   cache_->SaveGeometry(extension_id,
    334                        kWindowId,
    335                        bounds2_duplicate,
    336                        screen_bounds2_duplicate,
    337                        ui::SHOW_STATE_MAXIMIZED);
    338   WaitForSync();
    339   Mock::VerifyAndClearExpectations(&observer);
    340 }
    341 
    342 // Tests that no more than kMaxCachedWindows windows will be cached.
    343 TEST_F(AppWindowGeometryCacheTest, MaxWindows) {
    344   const std::string extension_id = prefs_->AddExtensionAndReturnId("ext1");
    345   // inform cache of extension
    346   LoadExtension(extension_id);
    347 
    348   gfx::Rect bounds(4, 5, 31, 43);
    349   gfx::Rect screen_bounds(0, 0, 1600, 900);
    350   for (size_t i = 0; i < AppWindowGeometryCache::kMaxCachedWindows + 1; ++i) {
    351     std::string window_id = "window_" + base::IntToString(i);
    352     cache_->SaveGeometry(
    353         extension_id, window_id, bounds, screen_bounds, ui::SHOW_STATE_NORMAL);
    354   }
    355 
    356   // The first added window should no longer have cached geometry.
    357   EXPECT_FALSE(cache_->GetGeometry(extension_id, "window_0", NULL, NULL, NULL));
    358   // All other windows should still exist.
    359   for (size_t i = 1; i < AppWindowGeometryCache::kMaxCachedWindows + 1; ++i) {
    360     std::string window_id = "window_" + base::IntToString(i);
    361     EXPECT_TRUE(cache_->GetGeometry(extension_id, window_id, NULL, NULL, NULL));
    362   }
    363 }
    364 
    365 }  // namespace apps
    366