Media Controls: move simple buttons to modules/.

third_party/WebKit/Source/modules/media_controls/elements/MediaControlPlayButtonElement.cpp

+// Copyright 2017 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 "modules/media_controls/elements/MediaControlPlayButtonElement.h"
+
+#include "core/InputTypeNames.h"
+#include "core/events/Event.h"
+#include "core/html/HTMLMediaElement.h"
+#include "core/html/media/HTMLMediaSource.h"
+#include "modules/media_controls/MediaControlsImpl.h"
+#include "public/platform/Platform.h"
+
+namespace blink {
+
+MediaControlPlayButtonElement::MediaControlPlayButtonElement(
+    MediaControlsImpl& media_controls)
+    : MediaControlInputElement(media_controls, kMediaPlayButton) {
+  EnsureUserAgentShadowRoot();
+  setType(InputTypeNames::button);
+  SetShadowPseudoId(AtomicString("-webkit-media-controls-play-button"));
+}
+
+bool MediaControlPlayButtonElement::WillRespondToMouseClickEvents() {
+  return true;
+}
+
+void MediaControlPlayButtonElement::UpdateDisplayType() {
+  SetDisplayType(MediaElement().paused() ? kMediaPlayButton
+                                         : kMediaPauseButton);
+  UpdateOverflowString();
+}
+
+WebLocalizedString::Name
+MediaControlPlayButtonElement::GetOverflowStringName() {
+  if (MediaElement().paused())
+    return WebLocalizedString::kOverflowMenuPlay;
+  return WebLocalizedString::kOverflowMenuPause;
+}
+
+bool MediaControlPlayButtonElement::HasOverflowButton() {
+  return true;
+}
+
+void MediaControlPlayButtonElement::DefaultEventHandler(Event* event) {
+  if (event->type() == EventTypeNames::click) {
+    if (MediaElement().paused()) {
+      Platform::Current()->RecordAction(
+          UserMetricsAction("Media.Controls.Play"));
+    } else {
+      Platform::Current()->RecordAction(
+          UserMetricsAction("Media.Controls.Pause"));
+    }
+
+    // Allow play attempts for plain src= media to force a reload in the error
+    // state. This allows potential recovery for transient network and decoder
+    // resource issues.
+    const String& url = MediaElement().currentSrc().GetString();
+    if (MediaElement().error() && !HTMLMediaElement::IsMediaStreamURL(url) &&
+        !HTMLMediaSource::Lookup(url))
+      MediaElement().load();
+
+    MediaElement().TogglePlayState();
+    UpdateDisplayType();
+    event->SetDefaultHandled();
+  }
+  MediaControlInputElement::DefaultEventHandler(event);
+}
+
+}  // namespace blink