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| 1 // Copyright 2015 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 "bindings/core/v8/ScriptController.h" | |
| 6 #include "bindings/core/v8/ScriptSourceCode.h" | |
| 7 #include "core/dom/Document.h" | |
| 8 #include "core/dom/Element.h" | |
| 9 #include "core/frame/FrameView.h" | |
| 10 #include "core/frame/LocalFrame.h" | |
| 11 #include "core/html/HTMLIFrameElement.h" | |
| 12 #include "core/layout/api/LayoutViewItem.h" | |
| 13 #include "core/layout/compositing/CompositedLayerMapping.h" | |
| 14 #include "core/page/FocusController.h" | |
| 15 #include "core/page/Page.h" | |
| 16 #include "core/paint/PaintLayer.h" | |
| 17 #include "platform/graphics/paint/TransformPaintPropertyNode.h" | |
| 18 #include "platform/testing/RuntimeEnabledFeaturesTestHelpers.h" | |
| 19 #include "platform/testing/URLTestHelpers.h" | |
| 20 #include "platform/testing/UnitTestHelpers.h" | |
| 21 #include "public/platform/WebDisplayItemList.h" | |
| 22 #include "public/platform/WebLayer.h" | |
| 23 #include "public/web/WebFrameContentDumper.h" | |
| 24 #include "public/web/WebHitTestResult.h" | |
| 25 #include "public/web/WebSettings.h" | |
| 26 #include "testing/gtest/include/gtest/gtest.h" | |
| 27 #include "web/WebLocalFrameImpl.h" | |
| 28 #include "web/WebRemoteFrameImpl.h" | |
| 29 #include "web/tests/sim/SimCompositor.h" | |
| 30 #include "web/tests/sim/SimDisplayItemList.h" | |
| 31 #include "web/tests/sim/SimRequest.h" | |
| 32 #include "web/tests/sim/SimTest.h" | |
| 33 | |
| 34 using testing::_; | |
| 35 | |
| 36 namespace blink { | |
| 37 | |
| 38 using namespace HTMLNames; | |
| 39 | |
| 40 // NOTE: This test uses <iframe sandbox> to create cross origin iframes. | |
| 41 | |
| 42 namespace { | |
| 43 | |
| 44 class MockWebDisplayItemList : public WebDisplayItemList { | |
| 45 public: | |
| 46 ~MockWebDisplayItemList() override {} | |
| 47 | |
| 48 MOCK_METHOD2(AppendDrawingItem, | |
| 49 void(const WebRect&, sk_sp<const PaintRecord>)); | |
| 50 }; | |
| 51 | |
| 52 void PaintRecursively(GraphicsLayer* layer, WebDisplayItemList* display_items) { | |
| 53 if (layer->DrawsContent()) { | |
| 54 layer->SetNeedsDisplay(); | |
| 55 layer->ContentLayerDelegateForTesting()->PaintContents( | |
| 56 display_items, ContentLayerDelegate::kPaintDefaultBehaviorForTest); | |
| 57 } | |
| 58 for (const auto& child : layer->Children()) | |
| 59 PaintRecursively(child, display_items); | |
| 60 } | |
| 61 | |
| 62 } // namespace | |
| 63 | |
| 64 class FrameThrottlingTest : public SimTest, | |
| 65 public ::testing::WithParamInterface<bool>, | |
| 66 private ScopedRootLayerScrollingForTest { | |
| 67 protected: | |
| 68 FrameThrottlingTest() : ScopedRootLayerScrollingForTest(GetParam()) { | |
| 69 WebView().Resize(WebSize(640, 480)); | |
| 70 } | |
| 71 | |
| 72 SimDisplayItemList CompositeFrame() { | |
| 73 SimDisplayItemList display_items = Compositor().BeginFrame(); | |
| 74 // Ensure intersection observer notifications get delivered. | |
| 75 testing::RunPendingTasks(); | |
| 76 return display_items; | |
| 77 } | |
| 78 | |
| 79 // Number of rectangles that make up the root layer's touch handler region. | |
| 80 size_t TouchHandlerRegionSize() { | |
| 81 size_t result = 0; | |
| 82 PaintLayer* layer = | |
| 83 WebView().MainFrameImpl()->GetFrame()->ContentLayoutObject()->Layer(); | |
| 84 GraphicsLayer* own_graphics_layer = | |
| 85 layer->GraphicsLayerBacking(&layer->GetLayoutObject()); | |
| 86 if (own_graphics_layer) { | |
| 87 result += | |
| 88 own_graphics_layer->PlatformLayer()->TouchEventHandlerRegion().size(); | |
| 89 } | |
| 90 GraphicsLayer* child_graphics_layer = layer->GraphicsLayerBacking(); | |
| 91 if (child_graphics_layer && child_graphics_layer != own_graphics_layer) { | |
| 92 result += child_graphics_layer->PlatformLayer() | |
| 93 ->TouchEventHandlerRegion() | |
| 94 .size(); | |
| 95 } | |
| 96 return result; | |
| 97 } | |
| 98 }; | |
| 99 | |
| 100 INSTANTIATE_TEST_CASE_P(All, FrameThrottlingTest, ::testing::Bool()); | |
| 101 | |
| 102 TEST_P(FrameThrottlingTest, ThrottleInvisibleFrames) { | |
| 103 SimRequest main_resource("https://example.com/", "text/html"); | |
| 104 | |
| 105 LoadURL("https://example.com/"); | |
| 106 main_resource.Complete("<iframe sandbox id=frame></iframe>"); | |
| 107 | |
| 108 auto* frame_element = | |
| 109 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 110 auto* frame_document = frame_element->contentDocument(); | |
| 111 | |
| 112 // Initially both frames are visible. | |
| 113 EXPECT_FALSE(GetDocument().View()->IsHiddenForThrottling()); | |
| 114 EXPECT_FALSE(frame_document->View()->IsHiddenForThrottling()); | |
| 115 | |
| 116 // Moving the child fully outside the parent makes it invisible. | |
| 117 frame_element->setAttribute(styleAttr, "transform: translateY(480px)"); | |
| 118 CompositeFrame(); | |
| 119 EXPECT_FALSE(GetDocument().View()->IsHiddenForThrottling()); | |
| 120 EXPECT_TRUE(frame_document->View()->IsHiddenForThrottling()); | |
| 121 | |
| 122 // A partially visible child is considered visible. | |
| 123 frame_element->setAttribute(styleAttr, | |
| 124 "transform: translate(-50px, 0px, 0px)"); | |
| 125 CompositeFrame(); | |
| 126 EXPECT_FALSE(GetDocument().View()->IsHiddenForThrottling()); | |
| 127 EXPECT_FALSE(frame_document->View()->IsHiddenForThrottling()); | |
| 128 } | |
| 129 | |
| 130 TEST_P(FrameThrottlingTest, HiddenSameOriginFramesAreNotThrottled) { | |
| 131 SimRequest main_resource("https://example.com/", "text/html"); | |
| 132 SimRequest frame_resource("https://example.com/iframe.html", "text/html"); | |
| 133 | |
| 134 LoadURL("https://example.com/"); | |
| 135 main_resource.Complete("<iframe id=frame src=iframe.html></iframe>"); | |
| 136 frame_resource.Complete("<iframe id=innerFrame></iframe>"); | |
| 137 | |
| 138 auto* frame_element = | |
| 139 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 140 auto* frame_document = frame_element->contentDocument(); | |
| 141 | |
| 142 HTMLIFrameElement* inner_frame_element = | |
| 143 toHTMLIFrameElement(frame_document->getElementById("innerFrame")); | |
| 144 auto* inner_frame_document = inner_frame_element->contentDocument(); | |
| 145 | |
| 146 EXPECT_FALSE(GetDocument().View()->CanThrottleRendering()); | |
| 147 EXPECT_FALSE(frame_document->View()->CanThrottleRendering()); | |
| 148 EXPECT_FALSE(inner_frame_document->View()->CanThrottleRendering()); | |
| 149 | |
| 150 // Hidden same origin frames are not throttled. | |
| 151 frame_element->setAttribute(styleAttr, "transform: translateY(480px)"); | |
| 152 CompositeFrame(); | |
| 153 EXPECT_FALSE(GetDocument().View()->CanThrottleRendering()); | |
| 154 EXPECT_FALSE(frame_document->View()->CanThrottleRendering()); | |
| 155 EXPECT_FALSE(inner_frame_document->View()->CanThrottleRendering()); | |
| 156 } | |
| 157 | |
| 158 TEST_P(FrameThrottlingTest, HiddenCrossOriginFramesAreThrottled) { | |
| 159 // Create a document with doubly nested iframes. | |
| 160 SimRequest main_resource("https://example.com/", "text/html"); | |
| 161 SimRequest frame_resource("https://example.com/iframe.html", "text/html"); | |
| 162 | |
| 163 LoadURL("https://example.com/"); | |
| 164 main_resource.Complete("<iframe id=frame src=iframe.html></iframe>"); | |
| 165 frame_resource.Complete("<iframe id=innerFrame sandbox></iframe>"); | |
| 166 | |
| 167 auto* frame_element = | |
| 168 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 169 auto* frame_document = frame_element->contentDocument(); | |
| 170 | |
| 171 auto* inner_frame_element = | |
| 172 toHTMLIFrameElement(frame_document->getElementById("innerFrame")); | |
| 173 auto* inner_frame_document = inner_frame_element->contentDocument(); | |
| 174 | |
| 175 EXPECT_FALSE(GetDocument().View()->CanThrottleRendering()); | |
| 176 EXPECT_FALSE(frame_document->View()->CanThrottleRendering()); | |
| 177 EXPECT_FALSE(inner_frame_document->View()->CanThrottleRendering()); | |
| 178 | |
| 179 // Hidden cross origin frames are throttled. | |
| 180 frame_element->setAttribute(styleAttr, "transform: translateY(480px)"); | |
| 181 CompositeFrame(); | |
| 182 EXPECT_FALSE(GetDocument().View()->CanThrottleRendering()); | |
| 183 EXPECT_FALSE(frame_document->View()->CanThrottleRendering()); | |
| 184 EXPECT_TRUE(inner_frame_document->View()->CanThrottleRendering()); | |
| 185 } | |
| 186 | |
| 187 TEST_P(FrameThrottlingTest, HiddenCrossOriginZeroByZeroFramesAreNotThrottled) { | |
| 188 // Create a document with doubly nested iframes. | |
| 189 SimRequest main_resource("https://example.com/", "text/html"); | |
| 190 SimRequest frame_resource("https://example.com/iframe.html", "text/html"); | |
| 191 | |
| 192 LoadURL("https://example.com/"); | |
| 193 main_resource.Complete("<iframe id=frame src=iframe.html></iframe>"); | |
| 194 frame_resource.Complete( | |
| 195 "<iframe id=innerFrame width=0 height=0 sandbox></iframe>"); | |
| 196 | |
| 197 auto* frame_element = | |
| 198 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 199 auto* frame_document = frame_element->contentDocument(); | |
| 200 | |
| 201 auto* inner_frame_element = | |
| 202 toHTMLIFrameElement(frame_document->getElementById("innerFrame")); | |
| 203 auto* inner_frame_document = inner_frame_element->contentDocument(); | |
| 204 | |
| 205 EXPECT_FALSE(GetDocument().View()->CanThrottleRendering()); | |
| 206 EXPECT_FALSE(frame_document->View()->CanThrottleRendering()); | |
| 207 EXPECT_FALSE(inner_frame_document->View()->CanThrottleRendering()); | |
| 208 | |
| 209 // The frame is not throttled because its dimensions are 0x0. | |
| 210 frame_element->setAttribute(styleAttr, "transform: translateY(480px)"); | |
| 211 CompositeFrame(); | |
| 212 EXPECT_FALSE(GetDocument().View()->CanThrottleRendering()); | |
| 213 EXPECT_FALSE(frame_document->View()->CanThrottleRendering()); | |
| 214 EXPECT_FALSE(inner_frame_document->View()->CanThrottleRendering()); | |
| 215 } | |
| 216 | |
| 217 TEST_P(FrameThrottlingTest, ThrottledLifecycleUpdate) { | |
| 218 SimRequest main_resource("https://example.com/", "text/html"); | |
| 219 | |
| 220 LoadURL("https://example.com/"); | |
| 221 main_resource.Complete("<iframe sandbox id=frame></iframe>"); | |
| 222 | |
| 223 auto* frame_element = | |
| 224 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 225 auto* frame_document = frame_element->contentDocument(); | |
| 226 | |
| 227 // Enable throttling for the child frame. | |
| 228 frame_element->setAttribute(styleAttr, "transform: translateY(480px)"); | |
| 229 CompositeFrame(); | |
| 230 EXPECT_TRUE(frame_document->View()->CanThrottleRendering()); | |
| 231 EXPECT_EQ(DocumentLifecycle::kPaintClean, | |
| 232 frame_document->Lifecycle().GetState()); | |
| 233 | |
| 234 // Mutating the throttled frame followed by a beginFrame will not result in | |
| 235 // a complete lifecycle update. | |
| 236 // TODO(skyostil): these expectations are either wrong, or the test is | |
| 237 // not exercising the code correctly. PaintClean means the entire lifecycle | |
| 238 // ran. | |
| 239 frame_element->setAttribute(widthAttr, "50"); | |
| 240 CompositeFrame(); | |
| 241 EXPECT_EQ(DocumentLifecycle::kPaintClean, | |
| 242 frame_document->Lifecycle().GetState()); | |
| 243 | |
| 244 // A hit test will not force a complete lifecycle update. | |
| 245 WebView().HitTestResultAt(WebPoint(0, 0)); | |
| 246 EXPECT_EQ(DocumentLifecycle::kPaintClean, | |
| 247 frame_document->Lifecycle().GetState()); | |
| 248 } | |
| 249 | |
| 250 TEST_P(FrameThrottlingTest, UnthrottlingFrameSchedulesAnimation) { | |
| 251 SimRequest main_resource("https://example.com/", "text/html"); | |
| 252 | |
| 253 LoadURL("https://example.com/"); | |
| 254 main_resource.Complete("<iframe sandbox id=frame></iframe>"); | |
| 255 | |
| 256 auto* frame_element = | |
| 257 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 258 | |
| 259 // First make the child hidden to enable throttling. | |
| 260 frame_element->setAttribute(styleAttr, "transform: translateY(480px)"); | |
| 261 CompositeFrame(); | |
| 262 EXPECT_TRUE(frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 263 EXPECT_FALSE(Compositor().NeedsBeginFrame()); | |
| 264 | |
| 265 // Then bring it back on-screen. This should schedule an animation update. | |
| 266 frame_element->setAttribute(styleAttr, ""); | |
| 267 CompositeFrame(); | |
| 268 EXPECT_TRUE(Compositor().NeedsBeginFrame()); | |
| 269 } | |
| 270 | |
| 271 TEST_P(FrameThrottlingTest, MutatingThrottledFrameDoesNotCauseAnimation) { | |
| 272 SimRequest main_resource("https://example.com/", "text/html"); | |
| 273 SimRequest frame_resource("https://example.com/iframe.html", "text/html"); | |
| 274 | |
| 275 LoadURL("https://example.com/"); | |
| 276 main_resource.Complete("<iframe id=frame sandbox src=iframe.html></iframe>"); | |
| 277 frame_resource.Complete("<style> html { background: red; } </style>"); | |
| 278 | |
| 279 // Check that the frame initially shows up. | |
| 280 auto display_items1 = CompositeFrame(); | |
| 281 EXPECT_TRUE(display_items1.Contains(SimCanvas::kRect, "red")); | |
| 282 | |
| 283 auto* frame_element = | |
| 284 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 285 | |
| 286 // Move the frame offscreen to throttle it. | |
| 287 frame_element->setAttribute(styleAttr, "transform: translateY(480px)"); | |
| 288 CompositeFrame(); | |
| 289 EXPECT_TRUE(frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 290 | |
| 291 // Mutating the throttled frame should not cause an animation to be scheduled. | |
| 292 frame_element->contentDocument()->documentElement()->setAttribute( | |
| 293 styleAttr, "background: green"); | |
| 294 EXPECT_FALSE(Compositor().NeedsBeginFrame()); | |
| 295 | |
| 296 // Move the frame back on screen to unthrottle it. | |
| 297 frame_element->setAttribute(styleAttr, ""); | |
| 298 EXPECT_TRUE(Compositor().NeedsBeginFrame()); | |
| 299 | |
| 300 // The first frame we composite after unthrottling won't contain the | |
| 301 // frame's new contents because unthrottling happens at the end of the | |
| 302 // lifecycle update. We need to do another composite to refresh the frame's | |
| 303 // contents. | |
| 304 auto display_items2 = CompositeFrame(); | |
| 305 EXPECT_FALSE(display_items2.Contains(SimCanvas::kRect, "green")); | |
| 306 EXPECT_TRUE(Compositor().NeedsBeginFrame()); | |
| 307 | |
| 308 auto display_items3 = CompositeFrame(); | |
| 309 EXPECT_TRUE(display_items3.Contains(SimCanvas::kRect, "green")); | |
| 310 } | |
| 311 | |
| 312 TEST_P(FrameThrottlingTest, SynchronousLayoutInThrottledFrame) { | |
| 313 // Create a hidden frame which is throttled. | |
| 314 SimRequest main_resource("https://example.com/", "text/html"); | |
| 315 SimRequest frame_resource("https://example.com/iframe.html", "text/html"); | |
| 316 | |
| 317 LoadURL("https://example.com/"); | |
| 318 main_resource.Complete("<iframe id=frame sandbox src=iframe.html></iframe>"); | |
| 319 frame_resource.Complete("<div id=div></div>"); | |
| 320 | |
| 321 auto* frame_element = | |
| 322 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 323 | |
| 324 frame_element->setAttribute(styleAttr, "transform: translateY(480px)"); | |
| 325 CompositeFrame(); | |
| 326 | |
| 327 // Change the size of a div in the throttled frame. | |
| 328 auto* div_element = frame_element->contentDocument()->getElementById("div"); | |
| 329 div_element->setAttribute(styleAttr, "width: 50px"); | |
| 330 | |
| 331 // Querying the width of the div should do a synchronous layout update even | |
| 332 // though the frame is being throttled. | |
| 333 EXPECT_EQ(50, div_element->clientWidth()); | |
| 334 } | |
| 335 | |
| 336 TEST_P(FrameThrottlingTest, UnthrottlingTriggersRepaint) { | |
| 337 // Create a hidden frame which is throttled. | |
| 338 SimRequest main_resource("https://example.com/", "text/html"); | |
| 339 SimRequest frame_resource("https://example.com/iframe.html", "text/html"); | |
| 340 | |
| 341 LoadURL("https://example.com/"); | |
| 342 main_resource.Complete("<iframe id=frame sandbox src=iframe.html></iframe>"); | |
| 343 frame_resource.Complete("<style> html { background: green; } </style>"); | |
| 344 | |
| 345 // Move the frame offscreen to throttle it. | |
| 346 auto* frame_element = | |
| 347 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 348 frame_element->setAttribute(styleAttr, "transform: translateY(480px)"); | |
| 349 EXPECT_FALSE( | |
| 350 frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 351 CompositeFrame(); | |
| 352 EXPECT_TRUE(frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 353 | |
| 354 // Scroll down to unthrottle the frame. The first frame we composite after | |
| 355 // scrolling won't contain the frame yet, but will schedule another repaint. | |
| 356 WebView() | |
| 357 .MainFrameImpl() | |
| 358 ->GetFrameView() | |
| 359 ->LayoutViewportScrollableArea() | |
| 360 ->SetScrollOffset(ScrollOffset(0, 480), kProgrammaticScroll); | |
| 361 auto display_items = CompositeFrame(); | |
| 362 EXPECT_FALSE(display_items.Contains(SimCanvas::kRect, "green")); | |
| 363 | |
| 364 // Now the frame contents should be visible again. | |
| 365 auto display_items2 = CompositeFrame(); | |
| 366 EXPECT_TRUE(display_items2.Contains(SimCanvas::kRect, "green")); | |
| 367 } | |
| 368 | |
| 369 TEST_P(FrameThrottlingTest, UnthrottlingTriggersRepaintInCompositedChild) { | |
| 370 // Create a hidden frame with a composited child layer. | |
| 371 SimRequest main_resource("https://example.com/", "text/html"); | |
| 372 SimRequest frame_resource("https://example.com/iframe.html", "text/html"); | |
| 373 | |
| 374 LoadURL("https://example.com/"); | |
| 375 main_resource.Complete("<iframe id=frame sandbox src=iframe.html></iframe>"); | |
| 376 frame_resource.Complete( | |
| 377 "<style>" | |
| 378 "div { " | |
| 379 " width: 100px;" | |
| 380 " height: 100px;" | |
| 381 " background-color: green;" | |
| 382 " transform: translateZ(0);" | |
| 383 "}" | |
| 384 "</style><div></div>"); | |
| 385 | |
| 386 // Move the frame offscreen to throttle it. | |
| 387 auto* frame_element = | |
| 388 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 389 frame_element->setAttribute(styleAttr, "transform: translateY(480px)"); | |
| 390 EXPECT_FALSE( | |
| 391 frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 392 CompositeFrame(); | |
| 393 EXPECT_TRUE(frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 394 | |
| 395 // Scroll down to unthrottle the frame. The first frame we composite after | |
| 396 // scrolling won't contain the frame yet, but will schedule another repaint. | |
| 397 WebView() | |
| 398 .MainFrameImpl() | |
| 399 ->GetFrameView() | |
| 400 ->LayoutViewportScrollableArea() | |
| 401 ->SetScrollOffset(ScrollOffset(0, 480), kProgrammaticScroll); | |
| 402 auto display_items = CompositeFrame(); | |
| 403 EXPECT_FALSE(display_items.Contains(SimCanvas::kRect, "green")); | |
| 404 | |
| 405 // Now the composited child contents should be visible again. | |
| 406 auto display_items2 = CompositeFrame(); | |
| 407 EXPECT_TRUE(display_items2.Contains(SimCanvas::kRect, "green")); | |
| 408 } | |
| 409 | |
| 410 TEST_P(FrameThrottlingTest, ChangeStyleInThrottledFrame) { | |
| 411 // Create a hidden frame which is throttled. | |
| 412 SimRequest main_resource("https://example.com/", "text/html"); | |
| 413 SimRequest frame_resource("https://example.com/iframe.html", "text/html"); | |
| 414 | |
| 415 LoadURL("https://example.com/"); | |
| 416 main_resource.Complete("<iframe id=frame sandbox src=iframe.html></iframe>"); | |
| 417 frame_resource.Complete("<style> html { background: red; } </style>"); | |
| 418 | |
| 419 // Move the frame offscreen to throttle it. | |
| 420 auto* frame_element = | |
| 421 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 422 frame_element->setAttribute(styleAttr, "transform: translateY(480px)"); | |
| 423 EXPECT_FALSE( | |
| 424 frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 425 CompositeFrame(); | |
| 426 EXPECT_TRUE(frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 427 | |
| 428 // Change the background color of the frame's contents from red to green. | |
| 429 frame_element->contentDocument()->body()->setAttribute(styleAttr, | |
| 430 "background: green"); | |
| 431 | |
| 432 // Scroll down to unthrottle the frame. | |
| 433 WebView() | |
| 434 .MainFrameImpl() | |
| 435 ->GetFrameView() | |
| 436 ->LayoutViewportScrollableArea() | |
| 437 ->SetScrollOffset(ScrollOffset(0, 480), kProgrammaticScroll); | |
| 438 auto display_items = CompositeFrame(); | |
| 439 EXPECT_FALSE(display_items.Contains(SimCanvas::kRect, "red")); | |
| 440 EXPECT_FALSE(display_items.Contains(SimCanvas::kRect, "green")); | |
| 441 | |
| 442 // Make sure the new style shows up instead of the old one. | |
| 443 auto display_items2 = CompositeFrame(); | |
| 444 EXPECT_TRUE(display_items2.Contains(SimCanvas::kRect, "green")); | |
| 445 } | |
| 446 | |
| 447 TEST_P(FrameThrottlingTest, ChangeOriginInThrottledFrame) { | |
| 448 // Create a hidden frame which is throttled. | |
| 449 SimRequest main_resource("http://example.com/", "text/html"); | |
| 450 SimRequest frame_resource("http://sub.example.com/iframe.html", "text/html"); | |
| 451 LoadURL("http://example.com/"); | |
| 452 main_resource.Complete( | |
| 453 "<iframe style='position: absolute; top: 10000px' id=frame " | |
| 454 "src=http://sub.example.com/iframe.html></iframe>"); | |
| 455 frame_resource.Complete(""); | |
| 456 | |
| 457 auto* frame_element = | |
| 458 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 459 | |
| 460 CompositeFrame(); | |
| 461 | |
| 462 EXPECT_TRUE(frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 463 EXPECT_TRUE( | |
| 464 frame_element->contentDocument()->GetFrame()->IsCrossOriginSubframe()); | |
| 465 EXPECT_FALSE(frame_element->contentDocument() | |
| 466 ->View() | |
| 467 ->GetLayoutView() | |
| 468 ->NeedsPaintPropertyUpdate()); | |
| 469 | |
| 470 NonThrowableExceptionState exception_state; | |
| 471 | |
| 472 // Security policy requires setting domain on both frames. | |
| 473 GetDocument().setDomain(String("example.com"), exception_state); | |
| 474 frame_element->contentDocument()->setDomain(String("example.com"), | |
| 475 exception_state); | |
| 476 | |
| 477 EXPECT_FALSE( | |
| 478 frame_element->contentDocument()->GetFrame()->IsCrossOriginSubframe()); | |
| 479 EXPECT_FALSE( | |
| 480 frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 481 EXPECT_TRUE(frame_element->contentDocument() | |
| 482 ->View() | |
| 483 ->GetLayoutView() | |
| 484 ->NeedsPaintPropertyUpdate()); | |
| 485 } | |
| 486 | |
| 487 TEST_P(FrameThrottlingTest, ThrottledFrameWithFocus) { | |
| 488 WebView().GetSettings()->SetJavaScriptEnabled(true); | |
| 489 WebView().GetSettings()->SetAcceleratedCompositingEnabled(true); | |
| 490 RuntimeEnabledFeatures::setCompositedSelectionUpdateEnabled(true); | |
| 491 | |
| 492 // Create a hidden frame which is throttled and has a text selection. | |
| 493 SimRequest main_resource("https://example.com/", "text/html"); | |
| 494 SimRequest frame_resource("https://example.com/iframe.html", "text/html"); | |
| 495 | |
| 496 LoadURL("https://example.com/"); | |
| 497 main_resource.Complete( | |
| 498 "<iframe id=frame sandbox=allow-scripts src=iframe.html></iframe>"); | |
| 499 frame_resource.Complete( | |
| 500 "some text to select\n" | |
| 501 "<script>\n" | |
| 502 "var range = document.createRange();\n" | |
| 503 "range.selectNode(document.body);\n" | |
| 504 "window.getSelection().addRange(range);\n" | |
| 505 "</script>\n"); | |
| 506 | |
| 507 // Move the frame offscreen to throttle it. | |
| 508 auto* frame_element = | |
| 509 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 510 frame_element->setAttribute(styleAttr, "transform: translateY(480px)"); | |
| 511 EXPECT_FALSE( | |
| 512 frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 513 CompositeFrame(); | |
| 514 EXPECT_TRUE(frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 515 | |
| 516 // Give the frame focus and do another composite. The selection in the | |
| 517 // compositor should be cleared because the frame is throttled. | |
| 518 EXPECT_FALSE(Compositor().HasSelection()); | |
| 519 GetDocument().GetPage()->GetFocusController().SetFocusedFrame( | |
| 520 frame_element->contentDocument()->GetFrame()); | |
| 521 GetDocument().body()->setAttribute(styleAttr, "background: green"); | |
| 522 CompositeFrame(); | |
| 523 EXPECT_FALSE(Compositor().HasSelection()); | |
| 524 } | |
| 525 | |
| 526 TEST_P(FrameThrottlingTest, ScrollingCoordinatorShouldSkipThrottledFrame) { | |
| 527 WebView().GetSettings()->SetAcceleratedCompositingEnabled(true); | |
| 528 | |
| 529 // Create a hidden frame which is throttled. | |
| 530 SimRequest main_resource("https://example.com/", "text/html"); | |
| 531 SimRequest frame_resource("https://example.com/iframe.html", "text/html"); | |
| 532 | |
| 533 LoadURL("https://example.com/"); | |
| 534 main_resource.Complete("<iframe id=frame sandbox src=iframe.html></iframe>"); | |
| 535 frame_resource.Complete( | |
| 536 "<style> html { background-image: linear-gradient(red, blue); " | |
| 537 "background-attachment: fixed; } </style>"); | |
| 538 | |
| 539 // Move the frame offscreen to throttle it. | |
| 540 auto* frame_element = | |
| 541 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 542 frame_element->setAttribute(styleAttr, "transform: translateY(480px)"); | |
| 543 EXPECT_FALSE( | |
| 544 frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 545 CompositeFrame(); | |
| 546 EXPECT_TRUE(frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 547 | |
| 548 // Change style of the frame's content to make it in VisualUpdatePending | |
| 549 // state. | |
| 550 frame_element->contentDocument()->body()->setAttribute(styleAttr, | |
| 551 "background: green"); | |
| 552 // Change root frame's layout so that the next lifecycle update will call | |
| 553 // ScrollingCoordinator::updateAfterCompositingChangeIfNeeded(). | |
| 554 GetDocument().body()->setAttribute(styleAttr, "margin: 20px"); | |
| 555 EXPECT_EQ(DocumentLifecycle::kVisualUpdatePending, | |
| 556 frame_element->contentDocument()->Lifecycle().GetState()); | |
| 557 | |
| 558 DocumentLifecycle::AllowThrottlingScope throttling_scope( | |
| 559 GetDocument().Lifecycle()); | |
| 560 // This will call ScrollingCoordinator::updateAfterCompositingChangeIfNeeded() | |
| 561 // and should not cause assert failure about | |
| 562 // isAllowedToQueryCompositingState() in the throttled frame. | |
| 563 GetDocument().View()->UpdateAllLifecyclePhases(); | |
| 564 testing::RunPendingTasks(); | |
| 565 EXPECT_EQ(DocumentLifecycle::kVisualUpdatePending, | |
| 566 frame_element->contentDocument()->Lifecycle().GetState()); | |
| 567 // The fixed background in the throttled sub frame should not cause main | |
| 568 // thread scrolling. | |
| 569 EXPECT_FALSE(GetDocument() | |
| 570 .View() | |
| 571 ->LayoutViewportScrollableArea() | |
| 572 ->ShouldScrollOnMainThread()); | |
| 573 | |
| 574 // Make the frame visible by changing its transform. This doesn't cause a | |
| 575 // layout, but should still unthrottle the frame. | |
| 576 frame_element->setAttribute(styleAttr, "transform: translateY(0px)"); | |
| 577 CompositeFrame(); | |
| 578 EXPECT_FALSE( | |
| 579 frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 580 // The fixed background in the throttled sub frame should be considered. | |
| 581 EXPECT_TRUE(frame_element->contentDocument() | |
| 582 ->View() | |
| 583 ->LayoutViewportScrollableArea() | |
| 584 ->ShouldScrollOnMainThread()); | |
| 585 EXPECT_FALSE(GetDocument() | |
| 586 .View() | |
| 587 ->LayoutViewportScrollableArea() | |
| 588 ->ShouldScrollOnMainThread()); | |
| 589 } | |
| 590 | |
| 591 TEST_P(FrameThrottlingTest, ScrollingCoordinatorShouldSkipThrottledLayer) { | |
| 592 WebView().GetSettings()->SetJavaScriptEnabled(true); | |
| 593 WebView().GetSettings()->SetAcceleratedCompositingEnabled(true); | |
| 594 WebView().GetSettings()->SetPreferCompositingToLCDTextEnabled(true); | |
| 595 | |
| 596 // Create a hidden frame which is throttled and has a touch handler inside a | |
| 597 // composited layer. | |
| 598 SimRequest main_resource("https://example.com/", "text/html"); | |
| 599 SimRequest frame_resource("https://example.com/iframe.html", "text/html"); | |
| 600 | |
| 601 LoadURL("https://example.com/"); | |
| 602 main_resource.Complete( | |
| 603 "<iframe id=frame sandbox=allow-scripts src=iframe.html></iframe>"); | |
| 604 frame_resource.Complete( | |
| 605 "<div id=div style='transform: translateZ(0)' ontouchstart='foo()'>touch " | |
| 606 "handler</div>"); | |
| 607 | |
| 608 // Move the frame offscreen to throttle it. | |
| 609 auto* frame_element = | |
| 610 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 611 frame_element->setAttribute(styleAttr, "transform: translateY(480px)"); | |
| 612 EXPECT_FALSE( | |
| 613 frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 614 CompositeFrame(); | |
| 615 EXPECT_TRUE(frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 616 | |
| 617 // Change style of the frame's content to make it in VisualUpdatePending | |
| 618 // state. | |
| 619 frame_element->contentDocument()->body()->setAttribute(styleAttr, | |
| 620 "background: green"); | |
| 621 // Change root frame's layout so that the next lifecycle update will call | |
| 622 // ScrollingCoordinator::updateAfterCompositingChangeIfNeeded(). | |
| 623 GetDocument().body()->setAttribute(styleAttr, "margin: 20px"); | |
| 624 EXPECT_EQ(DocumentLifecycle::kVisualUpdatePending, | |
| 625 frame_element->contentDocument()->Lifecycle().GetState()); | |
| 626 | |
| 627 DocumentLifecycle::AllowThrottlingScope throttling_scope( | |
| 628 GetDocument().Lifecycle()); | |
| 629 // This will call ScrollingCoordinator::updateAfterCompositingChangeIfNeeded() | |
| 630 // and should not cause assert failure about | |
| 631 // isAllowedToQueryCompositingState() in the throttled frame. | |
| 632 GetDocument().View()->UpdateAllLifecyclePhases(); | |
| 633 testing::RunPendingTasks(); | |
| 634 EXPECT_EQ(DocumentLifecycle::kVisualUpdatePending, | |
| 635 frame_element->contentDocument()->Lifecycle().GetState()); | |
| 636 } | |
| 637 | |
| 638 TEST_P(FrameThrottlingTest, | |
| 639 ScrollingCoordinatorShouldSkipCompositedThrottledFrame) { | |
| 640 WebView().GetSettings()->SetAcceleratedCompositingEnabled(true); | |
| 641 WebView().GetSettings()->SetPreferCompositingToLCDTextEnabled(true); | |
| 642 | |
| 643 // Create a hidden frame which is throttled. | |
| 644 SimRequest main_resource("https://example.com/", "text/html"); | |
| 645 SimRequest frame_resource("https://example.com/iframe.html", "text/html"); | |
| 646 | |
| 647 LoadURL("https://example.com/"); | |
| 648 main_resource.Complete("<iframe id=frame sandbox src=iframe.html></iframe>"); | |
| 649 frame_resource.Complete("<div style='height: 2000px'></div>"); | |
| 650 | |
| 651 // Move the frame offscreen to throttle it. | |
| 652 auto* frame_element = | |
| 653 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 654 frame_element->setAttribute(styleAttr, "transform: translateY(480px)"); | |
| 655 EXPECT_FALSE( | |
| 656 frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 657 CompositeFrame(); | |
| 658 EXPECT_TRUE(frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 659 | |
| 660 // Change style of the frame's content to make it in VisualUpdatePending | |
| 661 // state. | |
| 662 frame_element->contentDocument()->body()->setAttribute(styleAttr, | |
| 663 "background: green"); | |
| 664 // Change root frame's layout so that the next lifecycle update will call | |
| 665 // ScrollingCoordinator::updateAfterCompositingChangeIfNeeded(). | |
| 666 GetDocument().body()->setAttribute(styleAttr, "margin: 20px"); | |
| 667 EXPECT_EQ(DocumentLifecycle::kVisualUpdatePending, | |
| 668 frame_element->contentDocument()->Lifecycle().GetState()); | |
| 669 | |
| 670 DocumentLifecycle::AllowThrottlingScope throttling_scope( | |
| 671 GetDocument().Lifecycle()); | |
| 672 // This will call ScrollingCoordinator::updateAfterCompositingChangeIfNeeded() | |
| 673 // and should not cause assert failure about | |
| 674 // isAllowedToQueryCompositingState() in the throttled frame. | |
| 675 CompositeFrame(); | |
| 676 EXPECT_EQ(DocumentLifecycle::kVisualUpdatePending, | |
| 677 frame_element->contentDocument()->Lifecycle().GetState()); | |
| 678 | |
| 679 // Make the frame visible by changing its transform. This doesn't cause a | |
| 680 // layout, but should still unthrottle the frame. | |
| 681 frame_element->setAttribute(styleAttr, "transform: translateY(0px)"); | |
| 682 CompositeFrame(); // Unthrottle the frame. | |
| 683 CompositeFrame(); // Handle the pending visual update of the unthrottled | |
| 684 // frame. | |
| 685 EXPECT_EQ(DocumentLifecycle::kPaintClean, | |
| 686 frame_element->contentDocument()->Lifecycle().GetState()); | |
| 687 EXPECT_TRUE( | |
| 688 frame_element->contentDocument()->View()->UsesCompositedScrolling()); | |
| 689 } | |
| 690 | |
| 691 TEST_P(FrameThrottlingTest, UnthrottleByTransformingWithoutLayout) { | |
| 692 WebView().GetSettings()->SetAcceleratedCompositingEnabled(true); | |
| 693 | |
| 694 // Create a hidden frame which is throttled. | |
| 695 SimRequest main_resource("https://example.com/", "text/html"); | |
| 696 SimRequest frame_resource("https://example.com/iframe.html", "text/html"); | |
| 697 | |
| 698 LoadURL("https://example.com/"); | |
| 699 main_resource.Complete("<iframe id=frame sandbox src=iframe.html></iframe>"); | |
| 700 frame_resource.Complete(""); | |
| 701 | |
| 702 // Move the frame offscreen to throttle it. | |
| 703 auto* frame_element = | |
| 704 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 705 frame_element->setAttribute(styleAttr, "transform: translateY(480px)"); | |
| 706 EXPECT_FALSE( | |
| 707 frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 708 CompositeFrame(); | |
| 709 EXPECT_TRUE(frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 710 | |
| 711 // Make the frame visible by changing its transform. This doesn't cause a | |
| 712 // layout, but should still unthrottle the frame. | |
| 713 frame_element->setAttribute(styleAttr, "transform: translateY(0px)"); | |
| 714 CompositeFrame(); | |
| 715 EXPECT_FALSE( | |
| 716 frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 717 } | |
| 718 | |
| 719 TEST_P(FrameThrottlingTest, ThrottledTopLevelEventHandlerIgnored) { | |
| 720 WebView().GetSettings()->SetAcceleratedCompositingEnabled(true); | |
| 721 WebView().GetSettings()->SetJavaScriptEnabled(true); | |
| 722 EXPECT_EQ(0u, TouchHandlerRegionSize()); | |
| 723 | |
| 724 // Create a frame which is throttled and has two different types of | |
| 725 // top-level touchstart handlers. | |
| 726 SimRequest main_resource("https://example.com/", "text/html"); | |
| 727 SimRequest frame_resource("https://example.com/iframe.html", "text/html"); | |
| 728 | |
| 729 LoadURL("https://example.com/"); | |
| 730 main_resource.Complete( | |
| 731 "<iframe id=frame sandbox=allow-scripts src=iframe.html></iframe>"); | |
| 732 frame_resource.Complete( | |
| 733 "<script>" | |
| 734 "window.addEventListener('touchstart', function(){}, {passive: false});" | |
| 735 "document.addEventListener('touchstart', function(){}, {passive: false});" | |
| 736 "</script>"); | |
| 737 auto* frame_element = | |
| 738 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 739 frame_element->setAttribute(styleAttr, "transform: translateY(480px)"); | |
| 740 CompositeFrame(); // Throttle the frame. | |
| 741 CompositeFrame(); // Update touch handler regions. | |
| 742 | |
| 743 // The touch handlers in the throttled frame should have been ignored. | |
| 744 EXPECT_EQ(0u, TouchHandlerRegionSize()); | |
| 745 | |
| 746 // Unthrottling the frame makes the touch handlers active again. Note that | |
| 747 // both handlers get combined into the same rectangle in the region, so | |
| 748 // there is only one rectangle in total. | |
| 749 frame_element->setAttribute(styleAttr, "transform: translateY(0px)"); | |
| 750 CompositeFrame(); // Unthrottle the frame. | |
| 751 CompositeFrame(); // Update touch handler regions. | |
| 752 EXPECT_EQ(1u, TouchHandlerRegionSize()); | |
| 753 } | |
| 754 | |
| 755 TEST_P(FrameThrottlingTest, ThrottledEventHandlerIgnored) { | |
| 756 WebView().GetSettings()->SetAcceleratedCompositingEnabled(true); | |
| 757 WebView().GetSettings()->SetJavaScriptEnabled(true); | |
| 758 EXPECT_EQ(0u, TouchHandlerRegionSize()); | |
| 759 | |
| 760 // Create a frame which is throttled and has a non-top-level touchstart | |
| 761 // handler. | |
| 762 SimRequest main_resource("https://example.com/", "text/html"); | |
| 763 SimRequest frame_resource("https://example.com/iframe.html", "text/html"); | |
| 764 | |
| 765 LoadURL("https://example.com/"); | |
| 766 main_resource.Complete( | |
| 767 "<iframe id=frame sandbox=allow-scripts src=iframe.html></iframe>"); | |
| 768 frame_resource.Complete( | |
| 769 "<div id=d>touch handler</div>" | |
| 770 "<script>" | |
| 771 "document.querySelector('#d').addEventListener('touchstart', " | |
| 772 "function(){});" | |
| 773 "</script>"); | |
| 774 auto* frame_element = | |
| 775 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 776 frame_element->setAttribute(styleAttr, "transform: translateY(480px)"); | |
| 777 CompositeFrame(); // Throttle the frame. | |
| 778 CompositeFrame(); // Update touch handler regions. | |
| 779 | |
| 780 // The touch handler in the throttled frame should have been ignored. | |
| 781 EXPECT_EQ(0u, TouchHandlerRegionSize()); | |
| 782 | |
| 783 // Unthrottling the frame makes the touch handler active again. | |
| 784 frame_element->setAttribute(styleAttr, "transform: translateY(0px)"); | |
| 785 CompositeFrame(); // Unthrottle the frame. | |
| 786 CompositeFrame(); // Update touch handler regions. | |
| 787 EXPECT_EQ(1u, TouchHandlerRegionSize()); | |
| 788 } | |
| 789 | |
| 790 TEST_P(FrameThrottlingTest, DumpThrottledFrame) { | |
| 791 WebView().GetSettings()->SetJavaScriptEnabled(true); | |
| 792 | |
| 793 // Create a frame which is throttled. | |
| 794 SimRequest main_resource("https://example.com/", "text/html"); | |
| 795 SimRequest frame_resource("https://example.com/iframe.html", "text/html"); | |
| 796 | |
| 797 LoadURL("https://example.com/"); | |
| 798 main_resource.Complete( | |
| 799 "main <iframe id=frame sandbox=allow-scripts src=iframe.html></iframe>"); | |
| 800 frame_resource.Complete(""); | |
| 801 auto* frame_element = | |
| 802 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 803 frame_element->setAttribute(styleAttr, "transform: translateY(480px)"); | |
| 804 CompositeFrame(); | |
| 805 EXPECT_TRUE(frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 806 | |
| 807 LocalFrame* local_frame = ToLocalFrame(frame_element->ContentFrame()); | |
| 808 local_frame->GetScriptController().ExecuteScriptInMainWorld( | |
| 809 "document.body.innerHTML = 'throttled'"); | |
| 810 EXPECT_FALSE(Compositor().NeedsBeginFrame()); | |
| 811 | |
| 812 // The dumped contents should not include the throttled frame. | |
| 813 DocumentLifecycle::AllowThrottlingScope throttling_scope( | |
| 814 GetDocument().Lifecycle()); | |
| 815 WebString result = WebFrameContentDumper::DeprecatedDumpFrameTreeAsText( | |
| 816 WebView().MainFrameImpl(), 1024); | |
| 817 EXPECT_NE(std::string::npos, result.Utf8().find("main")); | |
| 818 EXPECT_EQ(std::string::npos, result.Utf8().find("throttled")); | |
| 819 } | |
| 820 | |
| 821 TEST_P(FrameThrottlingTest, PaintingViaContentLayerDelegateIsThrottled) { | |
| 822 WebView().GetSettings()->SetAcceleratedCompositingEnabled(true); | |
| 823 WebView().GetSettings()->SetPreferCompositingToLCDTextEnabled(true); | |
| 824 | |
| 825 // Create a hidden frame which is throttled. | |
| 826 SimRequest main_resource("https://example.com/", "text/html"); | |
| 827 SimRequest frame_resource("https://example.com/iframe.html", "text/html"); | |
| 828 | |
| 829 LoadURL("https://example.com/"); | |
| 830 main_resource.Complete("<iframe id=frame sandbox src=iframe.html></iframe>"); | |
| 831 frame_resource.Complete("throttled"); | |
| 832 CompositeFrame(); | |
| 833 | |
| 834 // Move the frame offscreen to throttle it and make sure it is backed by a | |
| 835 // graphics layer. | |
| 836 auto* frame_element = | |
| 837 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 838 frame_element->setAttribute(styleAttr, | |
| 839 "transform: translateY(480px) translateZ(0px)"); | |
| 840 EXPECT_FALSE( | |
| 841 frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 842 CompositeFrame(); | |
| 843 EXPECT_TRUE(frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 844 | |
| 845 // If painting of the iframe is throttled, we should only receive two | |
| 846 // drawing items. | |
| 847 MockWebDisplayItemList display_items; | |
| 848 EXPECT_CALL(display_items, AppendDrawingItem(_, _)).Times(2); | |
| 849 | |
| 850 GraphicsLayer* layer = WebView().RootGraphicsLayer(); | |
| 851 PaintRecursively(layer, &display_items); | |
| 852 } | |
| 853 | |
| 854 TEST_P(FrameThrottlingTest, ThrottleSubtreeAtomically) { | |
| 855 // Create two nested frames which are throttled. | |
| 856 SimRequest main_resource("https://example.com/", "text/html"); | |
| 857 SimRequest frame_resource("https://example.com/iframe.html", "text/html"); | |
| 858 SimRequest child_frame_resource("https://example.com/child-iframe.html", | |
| 859 "text/html"); | |
| 860 | |
| 861 LoadURL("https://example.com/"); | |
| 862 main_resource.Complete("<iframe id=frame sandbox src=iframe.html></iframe>"); | |
| 863 frame_resource.Complete( | |
| 864 "<iframe id=child-frame sandbox src=child-iframe.html></iframe>"); | |
| 865 child_frame_resource.Complete(""); | |
| 866 | |
| 867 // Move both frames offscreen, but don't run the intersection observers yet. | |
| 868 auto* frame_element = | |
| 869 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 870 auto* child_frame_element = toHTMLIFrameElement( | |
| 871 frame_element->contentDocument()->getElementById("child-frame")); | |
| 872 frame_element->setAttribute(styleAttr, "transform: translateY(480px)"); | |
| 873 Compositor().BeginFrame(); | |
| 874 EXPECT_FALSE( | |
| 875 frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 876 EXPECT_FALSE( | |
| 877 child_frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 878 | |
| 879 // Only run the intersection observer for the parent frame. Both frames | |
| 880 // should immediately become throttled. This simulates the case where a task | |
| 881 // such as BeginMainFrame runs in the middle of dispatching intersection | |
| 882 // observer notifications. | |
| 883 frame_element->contentDocument() | |
| 884 ->View() | |
| 885 ->UpdateRenderThrottlingStatusForTesting(); | |
| 886 EXPECT_TRUE(frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 887 EXPECT_TRUE( | |
| 888 child_frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 889 | |
| 890 // Both frames should still be throttled after the second notification. | |
| 891 child_frame_element->contentDocument() | |
| 892 ->View() | |
| 893 ->UpdateRenderThrottlingStatusForTesting(); | |
| 894 EXPECT_TRUE(frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 895 EXPECT_TRUE( | |
| 896 child_frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 897 | |
| 898 // Move the frame back on screen but don't update throttling yet. | |
| 899 frame_element->setAttribute(styleAttr, "transform: translateY(0px)"); | |
| 900 Compositor().BeginFrame(); | |
| 901 EXPECT_TRUE(frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 902 EXPECT_TRUE( | |
| 903 child_frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 904 | |
| 905 // Update throttling for the child. It should remain throttled because the | |
| 906 // parent is still throttled. | |
| 907 child_frame_element->contentDocument() | |
| 908 ->View() | |
| 909 ->UpdateRenderThrottlingStatusForTesting(); | |
| 910 EXPECT_TRUE(frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 911 EXPECT_TRUE( | |
| 912 child_frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 913 | |
| 914 // Updating throttling on the parent should unthrottle both frames. | |
| 915 frame_element->contentDocument() | |
| 916 ->View() | |
| 917 ->UpdateRenderThrottlingStatusForTesting(); | |
| 918 EXPECT_FALSE( | |
| 919 frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 920 EXPECT_FALSE( | |
| 921 child_frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 922 } | |
| 923 | |
| 924 TEST_P(FrameThrottlingTest, SkipPaintingLayersInThrottledFrames) { | |
| 925 WebView().GetSettings()->SetAcceleratedCompositingEnabled(true); | |
| 926 WebView().GetSettings()->SetPreferCompositingToLCDTextEnabled(true); | |
| 927 | |
| 928 SimRequest main_resource("https://example.com/", "text/html"); | |
| 929 SimRequest frame_resource("https://example.com/iframe.html", "text/html"); | |
| 930 | |
| 931 LoadURL("https://example.com/"); | |
| 932 main_resource.Complete("<iframe id=frame sandbox src=iframe.html></iframe>"); | |
| 933 frame_resource.Complete( | |
| 934 "<div id=div style='transform: translateZ(0); background: " | |
| 935 "red'>layer</div>"); | |
| 936 auto display_items = CompositeFrame(); | |
| 937 EXPECT_TRUE(display_items.Contains(SimCanvas::kRect, "red")); | |
| 938 | |
| 939 auto* frame_element = | |
| 940 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 941 frame_element->setAttribute(styleAttr, "transform: translateY(480px)"); | |
| 942 CompositeFrame(); | |
| 943 EXPECT_TRUE(frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 944 | |
| 945 auto* frame_document = frame_element->contentDocument(); | |
| 946 EXPECT_EQ(DocumentLifecycle::kPaintClean, | |
| 947 frame_document->Lifecycle().GetState()); | |
| 948 | |
| 949 // Simulate the paint for a graphics layer being externally invalidated | |
| 950 // (e.g., by video playback). | |
| 951 frame_document->View() | |
| 952 ->GetLayoutViewItem() | |
| 953 .InvalidatePaintForViewAndCompositedLayers(); | |
| 954 | |
| 955 // The layer inside the throttled frame should not get painted. | |
| 956 auto display_items2 = CompositeFrame(); | |
| 957 EXPECT_FALSE(display_items2.Contains(SimCanvas::kRect, "red")); | |
| 958 } | |
| 959 | |
| 960 TEST_P(FrameThrottlingTest, SynchronousLayoutInAnimationFrameCallback) { | |
| 961 WebView().GetSettings()->SetJavaScriptEnabled(true); | |
| 962 | |
| 963 // Prepare a page with two cross origin frames (from the same origin so they | |
| 964 // are able to access eachother). | |
| 965 SimRequest main_resource("https://example.com/", "text/html"); | |
| 966 SimRequest first_frame_resource("https://thirdparty.com/first.html", | |
| 967 "text/html"); | |
| 968 SimRequest second_frame_resource("https://thirdparty.com/second.html", | |
| 969 "text/html"); | |
| 970 LoadURL("https://example.com/"); | |
| 971 main_resource.Complete( | |
| 972 "<iframe id=first name=first " | |
| 973 "src='https://thirdparty.com/first.html'></iframe>\n" | |
| 974 "<iframe id=second name=second " | |
| 975 "src='https://thirdparty.com/second.html'></iframe>"); | |
| 976 | |
| 977 // The first frame contains just a simple div. This frame will be made | |
| 978 // throttled. | |
| 979 first_frame_resource.Complete("<div id=d>first frame</div>"); | |
| 980 | |
| 981 // The second frame just used to execute a requestAnimationFrame callback. | |
| 982 second_frame_resource.Complete(""); | |
| 983 | |
| 984 // Throttle the first frame. | |
| 985 auto* first_frame_element = | |
| 986 toHTMLIFrameElement(GetDocument().getElementById("first")); | |
| 987 first_frame_element->setAttribute(styleAttr, "transform: translateY(480px)"); | |
| 988 CompositeFrame(); | |
| 989 EXPECT_TRUE( | |
| 990 first_frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 991 | |
| 992 // Run a animation frame callback in the second frame which mutates the | |
| 993 // contents of the first frame and causes a synchronous style update. This | |
| 994 // should not result in an unexpected lifecycle state even if the first | |
| 995 // frame is throttled during the animation frame callback. | |
| 996 auto* second_frame_element = | |
| 997 toHTMLIFrameElement(GetDocument().getElementById("second")); | |
| 998 LocalFrame* local_frame = ToLocalFrame(second_frame_element->ContentFrame()); | |
| 999 local_frame->GetScriptController().ExecuteScriptInMainWorld( | |
| 1000 "window.requestAnimationFrame(function() {\n" | |
| 1001 " var throttledFrame = window.parent.frames.first;\n" | |
| 1002 " throttledFrame.document.documentElement.style = 'margin: 50px';\n" | |
| 1003 " throttledFrame.document.querySelector('#d').getBoundingClientRect();\n" | |
| 1004 "});\n"); | |
| 1005 CompositeFrame(); | |
| 1006 } | |
| 1007 | |
| 1008 TEST_P(FrameThrottlingTest, AllowOneAnimationFrame) { | |
| 1009 WebView().GetSettings()->SetJavaScriptEnabled(true); | |
| 1010 | |
| 1011 // Prepare a page with two cross origin frames (from the same origin so they | |
| 1012 // are able to access eachother). | |
| 1013 SimRequest main_resource("https://example.com/", "text/html"); | |
| 1014 SimRequest frame_resource("https://thirdparty.com/frame.html", "text/html"); | |
| 1015 LoadURL("https://example.com/"); | |
| 1016 main_resource.Complete( | |
| 1017 "<iframe id=frame style=\"position: fixed; top: -10000px\" " | |
| 1018 "src='https://thirdparty.com/frame.html'></iframe>"); | |
| 1019 | |
| 1020 frame_resource.Complete( | |
| 1021 "<script>" | |
| 1022 "window.requestAnimationFrame(() => { window.didRaf = true; });" | |
| 1023 "</script>"); | |
| 1024 | |
| 1025 auto* frame_element = | |
| 1026 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 1027 CompositeFrame(); | |
| 1028 EXPECT_TRUE(frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 1029 | |
| 1030 LocalFrame* local_frame = ToLocalFrame(frame_element->ContentFrame()); | |
| 1031 v8::HandleScope scope(v8::Isolate::GetCurrent()); | |
| 1032 v8::Local<v8::Value> result = | |
| 1033 local_frame->GetScriptController().ExecuteScriptInMainWorldAndReturnValue( | |
| 1034 ScriptSourceCode("window.didRaf;")); | |
| 1035 EXPECT_TRUE(result->IsTrue()); | |
| 1036 } | |
| 1037 | |
| 1038 TEST_P(FrameThrottlingTest, UpdatePaintPropertiesOnUnthrottling) { | |
| 1039 if (!RuntimeEnabledFeatures::slimmingPaintInvalidationEnabled()) | |
| 1040 return; | |
| 1041 | |
| 1042 SimRequest main_resource("https://example.com/", "text/html"); | |
| 1043 SimRequest frame_resource("https://example.com/iframe.html", "text/html"); | |
| 1044 | |
| 1045 LoadURL("https://example.com/"); | |
| 1046 main_resource.Complete("<iframe id=frame sandbox src=iframe.html></iframe>"); | |
| 1047 frame_resource.Complete("<div id='div'>Inner</div>"); | |
| 1048 CompositeFrame(); | |
| 1049 | |
| 1050 auto* frame_element = | |
| 1051 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 1052 auto* frame_document = frame_element->contentDocument(); | |
| 1053 auto* inner_div = frame_document->getElementById("div"); | |
| 1054 auto* inner_div_object = inner_div->GetLayoutObject(); | |
| 1055 EXPECT_FALSE(frame_document->View()->ShouldThrottleRendering()); | |
| 1056 | |
| 1057 frame_element->setAttribute(HTMLNames::styleAttr, | |
| 1058 "transform: translateY(1000px)"); | |
| 1059 CompositeFrame(); | |
| 1060 EXPECT_TRUE(frame_document->View()->CanThrottleRendering()); | |
| 1061 EXPECT_FALSE(inner_div_object->PaintProperties()); | |
| 1062 | |
| 1063 // Mutating the throttled frame should not cause paint property update. | |
| 1064 inner_div->setAttribute(HTMLNames::styleAttr, "transform: translateY(20px)"); | |
| 1065 EXPECT_FALSE(Compositor().NeedsBeginFrame()); | |
| 1066 EXPECT_TRUE(frame_document->View()->CanThrottleRendering()); | |
| 1067 { | |
| 1068 DocumentLifecycle::AllowThrottlingScope throttling_scope( | |
| 1069 GetDocument().Lifecycle()); | |
| 1070 GetDocument().View()->UpdateAllLifecyclePhases(); | |
| 1071 } | |
| 1072 EXPECT_FALSE(inner_div_object->PaintProperties()); | |
| 1073 | |
| 1074 // Move the frame back on screen to unthrottle it. | |
| 1075 frame_element->setAttribute(HTMLNames::styleAttr, ""); | |
| 1076 // The first update unthrottles the frame, the second actually update layout | |
| 1077 // and paint properties etc. | |
| 1078 CompositeFrame(); | |
| 1079 CompositeFrame(); | |
| 1080 EXPECT_FALSE(frame_document->View()->CanThrottleRendering()); | |
| 1081 EXPECT_EQ( | |
| 1082 TransformationMatrix().Translate(0, 20), | |
| 1083 inner_div->GetLayoutObject()->PaintProperties()->Transform()->Matrix()); | |
| 1084 } | |
| 1085 | |
| 1086 TEST_P(FrameThrottlingTest, DisplayNoneNotThrottled) { | |
| 1087 SimRequest main_resource("https://example.com/", "text/html"); | |
| 1088 | |
| 1089 LoadURL("https://example.com/"); | |
| 1090 main_resource.Complete( | |
| 1091 "<style>iframe { transform: translateY(480px); }</style>" | |
| 1092 "<iframe sandbox id=frame></iframe>"); | |
| 1093 | |
| 1094 auto* frame_element = | |
| 1095 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 1096 auto* frame_document = frame_element->contentDocument(); | |
| 1097 | |
| 1098 // Initially the frame is throttled as it is offscreen. | |
| 1099 CompositeFrame(); | |
| 1100 EXPECT_TRUE(frame_document->View()->CanThrottleRendering()); | |
| 1101 | |
| 1102 // Setting display:none unthrottles the frame. | |
| 1103 frame_element->setAttribute(styleAttr, "display: none"); | |
| 1104 CompositeFrame(); | |
| 1105 EXPECT_FALSE(frame_document->View()->CanThrottleRendering()); | |
| 1106 } | |
| 1107 | |
| 1108 TEST_P(FrameThrottlingTest, DisplayNoneChildrenRemainThrottled) { | |
| 1109 // Create two nested frames which are throttled. | |
| 1110 SimRequest main_resource("https://example.com/", "text/html"); | |
| 1111 SimRequest frame_resource("https://example.com/iframe.html", "text/html"); | |
| 1112 SimRequest child_frame_resource("https://example.com/child-iframe.html", | |
| 1113 "text/html"); | |
| 1114 | |
| 1115 LoadURL("https://example.com/"); | |
| 1116 main_resource.Complete("<iframe id=frame sandbox src=iframe.html></iframe>"); | |
| 1117 frame_resource.Complete( | |
| 1118 "<iframe id=child-frame sandbox src=child-iframe.html></iframe>"); | |
| 1119 child_frame_resource.Complete(""); | |
| 1120 | |
| 1121 // Move both frames offscreen to make them throttled. | |
| 1122 auto* frame_element = | |
| 1123 toHTMLIFrameElement(GetDocument().getElementById("frame")); | |
| 1124 auto* child_frame_element = toHTMLIFrameElement( | |
| 1125 frame_element->contentDocument()->getElementById("child-frame")); | |
| 1126 frame_element->setAttribute(styleAttr, "transform: translateY(480px)"); | |
| 1127 CompositeFrame(); | |
| 1128 EXPECT_TRUE(frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 1129 EXPECT_TRUE( | |
| 1130 child_frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 1131 | |
| 1132 // Setting display:none for the parent frame unthrottles the parent but not | |
| 1133 // the child. This behavior matches Safari. | |
| 1134 frame_element->setAttribute(styleAttr, "display: none"); | |
| 1135 CompositeFrame(); | |
| 1136 EXPECT_FALSE( | |
| 1137 frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 1138 EXPECT_TRUE( | |
| 1139 child_frame_element->contentDocument()->View()->CanThrottleRendering()); | |
| 1140 } | |
| 1141 | |
| 1142 } // namespace blink | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2885313003:
[scheduler] Fix --disable-background-timer-throttling flag. (Closed)
