Version 1

[yaffs-website] / node_modules / videojs-vtt.js / lib / vttregion.js

diff --git a/node_modules/videojs-vtt.js/lib/vttregion.js b/node_modules/videojs-vtt.js/lib/vttregion.js
new file mode 100644 (file)
index 0000000..b3ee040
--- /dev/null
+++ b/node_modules/videojs-vtt.js/lib/vttregion.js
@@ -0,0 +1,138 @@
+/**
+ * Copyright 2013 vtt.js Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+(function(root, vttjs) {
+
+  var scrollSetting = {
+    "": true,
+    "up": true
+  };
+
+  function findScrollSetting(value) {
+    if (typeof value !== "string") {
+      return false;
+    }
+    var scroll = scrollSetting[value.toLowerCase()];
+    return scroll ? value.toLowerCase() : false;
+  }
+
+  function isValidPercentValue(value) {
+    return typeof value === "number" && (value >= 0 && value <= 100);
+  }
+
+  // VTTRegion shim http://dev.w3.org/html5/webvtt/#vttregion-interface
+  function VTTRegion() {
+    var _width = 100;
+    var _lines = 3;
+    var _regionAnchorX = 0;
+    var _regionAnchorY = 100;
+    var _viewportAnchorX = 0;
+    var _viewportAnchorY = 100;
+    var _scroll = "";
+
+    Object.defineProperties(this, {
+      "width": {
+        enumerable: true,
+        get: function() {
+          return _width;
+        },
+        set: function(value) {
+          if (!isValidPercentValue(value)) {
+            throw new Error("Width must be between 0 and 100.");
+          }
+          _width = value;
+        }
+      },
+      "lines": {
+        enumerable: true,
+        get: function() {
+          return _lines;
+        },
+        set: function(value) {
+          if (typeof value !== "number") {
+            throw new TypeError("Lines must be set to a number.");
+          }
+          _lines = value;
+        }
+      },
+      "regionAnchorY": {
+        enumerable: true,
+        get: function() {
+          return _regionAnchorY;
+        },
+        set: function(value) {
+          if (!isValidPercentValue(value)) {
+            throw new Error("RegionAnchorX must be between 0 and 100.");
+          }
+          _regionAnchorY = value;
+        }
+      },
+      "regionAnchorX": {
+        enumerable: true,
+        get: function() {
+          return _regionAnchorX;
+        },
+        set: function(value) {
+          if(!isValidPercentValue(value)) {
+            throw new Error("RegionAnchorY must be between 0 and 100.");
+          }
+          _regionAnchorX = value;
+        }
+      },
+      "viewportAnchorY": {
+        enumerable: true,
+        get: function() {
+          return _viewportAnchorY;
+        },
+        set: function(value) {
+          if (!isValidPercentValue(value)) {
+            throw new Error("ViewportAnchorY must be between 0 and 100.");
+          }
+          _viewportAnchorY = value;
+        }
+      },
+      "viewportAnchorX": {
+        enumerable: true,
+        get: function() {
+          return _viewportAnchorX;
+        },
+        set: function(value) {
+          if (!isValidPercentValue(value)) {
+            throw new Error("ViewportAnchorX must be between 0 and 100.");
+          }
+          _viewportAnchorX = value;
+        }
+      },
+      "scroll": {
+        enumerable: true,
+        get: function() {
+          return _scroll;
+        },
+        set: function(value) {
+          var setting = findScrollSetting(value);
+          // Have to check for false as an empty string is a legal value.
+          if (setting === false) {
+            throw new SyntaxError("An invalid or illegal string was specified.");
+          }
+          _scroll = setting;
+        }
+      }
+    });
+  }
+
+  root.VTTRegion = root.VTTRegion || VTTRegion;
+  vttjs.VTTRegion = VTTRegion;
+}(this, (this.vttjs || {})));