First release

node_modules/videojs-vtt.js/lib/vttregion.js

@@ -0,0 +1,135 @@
+/**
+ * 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.
+ */
+
+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) {
+          console.warn("Scroll: an invalid or illegal string was specified.");
+        } else {
+          _scroll = setting;
+        }
+      }
+    }
+  });
+}
+
+module.exports = VTTRegion;