1 files changed, 93 insertions, 0 deletions
diff --git a/Source/WebCore/Modules/modern-media-controls/media/start-support.js b/Source/WebCore/Modules/modern-media-controls/media/start-support.js
new file mode 100644
index 000000000..bd9d7a312
--- /dev/null
+++ b/Source/WebCore/Modules/modern-media-controls/media/start-support.js
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2016 Apple Inc. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+class StartSupport extends MediaControllerSupport
+{
+
+    // Protected
+
+    get control()
+    {
+        return this.mediaController.controls.startButton;
+    }
+
+    get mediaEvents()
+    {
+        return ["loadedmetadata", "play", "error", "webkitfullscreenchange"];
+    }
+
+    buttonWasPressed(control)
+    {
+        this.mediaController.media.play();
+    }
+
+    handleEvent(event)
+    {
+        if (event.type === "play")
+            this._hasPlayed = true;
+
+        super.handleEvent(event);
+    }
+
+    syncControl()
+    {
+        this.mediaController.controls.showsStartButton = this._shouldShowStartButton();
+    }
+
+    // Private
+
+    _shouldShowStartButton()
+    {
+        const media = this.mediaController.media;
+
+        if (this._hasPlayed || media.played.length)
+            return false;
+
+        if (!media.paused)
+            return false;
+
+        if (media.autoplay)
+            return false;
+
+        if (media instanceof HTMLAudioElement)
+            return false;
+
+        if (media.webkitDisplayingFullscreen)
+            return false;
+
+        if (!media.currentSrc)
+            return false;
+
+        if (media.error)
+            return false;
+
+        const host = this.mediaController.host;
+        if (!media.controls && host && host.allowsInlineMediaPlayback)
+            return false;
+
+        return true;
+    }
+
+}