1 files changed, 102 insertions, 0 deletions
diff --git a/Source/WebCore/Modules/modern-media-controls/controls/icon-service.js b/Source/WebCore/Modules/modern-media-controls/controls/icon-service.js
new file mode 100644
index 000000000..417e9f51d
--- /dev/null
+++ b/Source/WebCore/Modules/modern-media-controls/controls/icon-service.js
@@ -0,0 +1,102 @@
+/*
+ * 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.
+ */
+
+const Icons = {
+    Airplay         : "airplay",
+    AirplayPlacard  : "airplay-placard",
+    EnterFullscreen : "enter-fullscreen",
+    EnterPiP        : "pip-in",
+    ExitFullscreen  : "exit-fullscreen",
+    Forward         : "forward",
+    InvalidPlacard  : "invalid-placard",
+    Pause           : "pause",
+    PiPPlacard      : "pip-placard",
+    Play            : "play",
+    Rewind          : "rewind",
+    ScaleToFill     : "scale-to-fill",
+    ScaleToFit      : "scale-to-fit",
+    SkipBack        : "interval-skip-back",
+    Start           : "start",
+    Tracks          : "media-selection",
+    Volume          : "volume",
+    VolumeDown      : "volume-down",
+    VolumeMuted     : "volume-mute",
+    VolumeUp        : "volume-up"
+};
+
+const IconsWithFullscreenVariants = [Icons.Airplay, Icons.Tracks, Icons.Pause, Icons.EnterPiP, Icons.Play, Icons.VolumeDown, Icons.VolumeUp];
+const IconsWithCompactVariants = [Icons.Play, Icons.Pause, Icons.SkipBack, Icons.Volume, Icons.VolumeMuted, Icons.EnterFullscreen];
+
+const iconService = new class IconService {
+
+    constructor()
+    {
+        this.images = {};
+    }
+
+    // Public
+
+    imageForIconNameAndLayoutTraits(iconName, layoutTraits)
+    {
+        const [fileName, platform] = this._fileNameAndPlatformForIconNameAndLayoutTraits(iconName, layoutTraits);
+        const path = `${platform}/${fileName}.png`;
+
+        let image = this.images[path];
+        if (image)
+            return image;
+
+        image = this.images[path] = new Image;
+
+        if (this.mediaControlsHost)
+            image.src = "data:image/png;base64," + this.mediaControlsHost.base64StringForIconAndPlatform(fileName, platform);
+        else
+            image.src = `${this.directoryPath}/${path}`;
+
+        return image;
+    }
+
+    // Private
+
+    _fileNameAndPlatformForIconNameAndLayoutTraits(iconName, layoutTraits)
+    {
+        let platform;
+        if (layoutTraits & LayoutTraits.macOS)
+            platform = "macOS";
+        else if (layoutTraits & LayoutTraits.iOS)
+            platform = "iOS";
+        else
+            throw "Could not identify icon's platform from layout traits.";
+
+        if (layoutTraits & LayoutTraits.Fullscreen && IconsWithFullscreenVariants.includes(iconName))
+            iconName += "-fullscreen";
+        else if (layoutTraits & LayoutTraits.Compact && IconsWithCompactVariants.includes(iconName))
+            iconName += "-compact";
+
+        const fileName = `${iconName}@${window.devicePixelRatio}x`;
+
+        return [fileName, platform];
+    }
+
+};