Hide overlay play button if it can't be shown without clipping

third_party/WebKit/Source/core/html/shadow/MediaControlsTest.cpp

 // Copyright 2015 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 "core/html/shadow/MediaControls.h"
 
 #include <limits>
 #include <memory>
 #include "core/HTMLNames.h"
 #include "core/css/StylePropertySet.h"
@@ skipping 142 matching lines @@
 
     // If scripts are not enabled, controls will always be shown.
     m_pageHolder->frame().settings()->setScriptEnabled(true);
   }
 
   void simulateRouteAvailabe() {
     m_mediaControls->mediaElement().remoteRouteAvailabilityChanged(
         WebRemotePlaybackAvailability::DeviceAvailable);
   }
 
-  void ensureLayout() {
-    // Force a relayout, so that the controls know the width.  Otherwise,
-    // they don't know if, for example, the cast button will fit.
-    m_mediaControls->mediaElement().clientWidth();
+  void ensureSizing() {
+    // Fire the size-change callback to ensure that the controls have
+    // been properly notified of the video size.
+    m_mediaControls->notifyElementSizeChanged(
+        m_mediaControls->mediaElement().getBoundingClientRect());
   }
 
   void simulateHideMediaControlsTimerFired() {
     m_mediaControls->hideMediaControlsTimerFired(nullptr);
   }
 
   void simulateLoadedMetadata() { m_mediaControls->onLoadedMetadata(); }
 
   MediaControls& mediaControls() { return *m_mediaControls; }
   Document& document() { return m_pageHolder->document(); }
@@ skipping 50 matching lines @@
   Document& document = this->document();
   int oldElementCount = document.styleEngine().styleForElementCount();
   // Also assert that there are no layouts yet.
   ASSERT_EQ(0, oldElementCount);
   mediaControls().reset();
   int newElementCount = document.styleEngine().styleForElementCount();
   ASSERT_EQ(oldElementCount, newElementCount);
 }
 
 TEST_F(MediaControlsTest, CastButtonRequiresRoute) {
-  ensureLayout();
+  ensureSizing();
   mediaControls().mediaElement().setBooleanAttribute(HTMLNames::controlsAttr,
                                                      true);
 
   Element* castButton = getElementByShadowPseudoId(
       mediaControls(), "-internal-media-controls-cast-button");
   ASSERT_NE(nullptr, castButton);
 
   ASSERT_FALSE(isElementVisible(*castButton));
 
   simulateRouteAvailabe();
   ASSERT_TRUE(isElementVisible(*castButton));
 }
 
 TEST_F(MediaControlsTest, CastButtonDisableRemotePlaybackAttr) {
-  ensureLayout();
+  ensureSizing();
   mediaControls().mediaElement().setBooleanAttribute(HTMLNames::controlsAttr,
                                                      true);
 
   Element* castButton = getElementByShadowPseudoId(
       mediaControls(), "-internal-media-controls-cast-button");
   ASSERT_NE(nullptr, castButton);
 
   ASSERT_FALSE(isElementVisible(*castButton));
   simulateRouteAvailabe();
   ASSERT_TRUE(isElementVisible(*castButton));
@@ skipping 66 matching lines @@
   mediaControls().show();
   mediaControls().toggleOverflowMenu();
   EXPECT_TRUE(isElementVisible(*overflowList));
 
   simulateHideMediaControlsTimerFired();
   EXPECT_TRUE(isElementVisible(*overflowList));
   EXPECT_TRUE(isElementVisible(*panel));
 }
 
 TEST_F(MediaControlsTest, DownloadButtonDisplayed) {
-  ensureLayout();
+  ensureSizing();
 
   Element* downloadButton = getElementByShadowPseudoId(
       mediaControls(), "-internal-media-controls-download-button");
   ASSERT_NE(nullptr, downloadButton);
 
   mediaControls().mediaElement().setSrc("https://example.com/foo.mp4");
   testing::runPendingTasks();
   simulateLoadedMetadata();
 
   // Download button should normally be displayed.
   EXPECT_TRUE(isElementVisible(*downloadButton));
 }
 
 TEST_F(MediaControlsTest, DownloadButtonNotDisplayedEmptyUrl) {
-  ensureLayout();
+  ensureSizing();
 
   Element* downloadButton = getElementByShadowPseudoId(
       mediaControls(), "-internal-media-controls-download-button");
   ASSERT_NE(nullptr, downloadButton);
 
   // Download button should not be displayed when URL is empty.
   mediaControls().mediaElement().setSrc("");
   testing::runPendingTasks();
   simulateLoadedMetadata();
   EXPECT_FALSE(isElementVisible(*downloadButton));
 }
 
 TEST_F(MediaControlsTest, DownloadButtonNotDisplayedInfiniteDuration) {
-  ensureLayout();
+  ensureSizing();
 
   Element* downloadButton = getElementByShadowPseudoId(
       mediaControls(), "-internal-media-controls-download-button");
   ASSERT_NE(nullptr, downloadButton);
 
   mediaControls().mediaElement().setSrc("https://example.com/foo.mp4");
   testing::runPendingTasks();
 
   // Download button should not be displayed when duration is infinite.
   mediaControls().mediaElement().durationChanged(
       std::numeric_limits<double>::infinity(), false /* requestSeek */);
   simulateLoadedMetadata();
   EXPECT_FALSE(isElementVisible(*downloadButton));
 }
 
 TEST_F(MediaControlsTest, DownloadButtonNotDisplayedHLS) {
-  ensureLayout();
+  ensureSizing();
 
   Element* downloadButton = getElementByShadowPseudoId(
       mediaControls(), "-internal-media-controls-download-button");
   ASSERT_NE(nullptr, downloadButton);
 
   // Download button should not be displayed for HLS streams.
   mediaControls().mediaElement().setSrc("https://example.com/foo.m3u8");
   testing::runPendingTasks();
   simulateLoadedMetadata();
   EXPECT_FALSE(isElementVisible(*downloadButton));
 }
 
 }  // namespace blink