WIP: Implement binding layer for Blink-in-JavaScript

Source/core/frame/WindowBase64.js

Index: Source/core/frame/WindowBase64.js
diff --git a/Source/core/svg/SVGLengthListTearOff.h b/Source/core/frame/WindowBase64.js
similarity index 56%
copy from Source/core/svg/SVGLengthListTearOff.h
copy to Source/core/frame/WindowBase64.js
index b28dc8c94e6171147890fb606b6d1c0e53bed86f..649dc26feb5aea12a7afb259c2ba2310051c270c 100644
--- a/Source/core/svg/SVGLengthListTearOff.h
+++ b/Source/core/frame/WindowBase64.js
@@ -28,31 +28,51 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef SVGLengthListTearOff_h
-#define SVGLengthListTearOff_h
+"use strict";
 
-#include "core/svg/SVGLengthList.h"
-#include "core/svg/properties/NewSVGListPropertyTearOffHelper.h"
+installClass("WindowBase64", function() {
+  // FIXME: This base64 encoding/decoding implementation is just copied from http://tociyuki.flop.jp/archive/base64.js.
+  // Fix the implementation per the spec.
+  var base64list = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
 
-namespace WebCore {
-
-class SVGLengthListTearOff FINAL :
-    public NewSVGListPropertyTearOffHelper<SVGLengthListTearOff, SVGLengthList>,
-    public ScriptWrappable {
-public:
-    static PassRefPtr<SVGLengthListTearOff> create(PassRefPtr<SVGLengthList> target, SVGElement* contextElement, PropertyIsAnimValType propertyIsAnimVal, const QualifiedName& attributeName = nullQName())
-    {
-        return adoptRef(new SVGLengthListTearOff(target, contextElement, propertyIsAnimVal, attributeName));
+  function atob(str) {
+    console.log(this === window);
+    var t = '', p = -6, a = 0, i = 0, v = 0, c;
+    while (i < str.length || p > -6) {
+      if (p < 0) {
+        if (i < str.length) {
+          c = str.charCodeAt(i++);
+          v += 8;
+        } else {
+          c = 0;
+        }
+        a = ((a & 255) << 8) | (c & 255);
+        p += 8;
+      }
+      t += base64list.charAt(v > 0 ? (a >> p) & 63 : 64);
+      p -= 6;
+      v -= 6;
     }
+    return t;
+  }
 
-private:
-    SVGLengthListTearOff(PassRefPtr<SVGLengthList> target, SVGElement* contextElement, PropertyIsAnimValType propertyIsAnimVal, const QualifiedName& attributeName = nullQName())
-        : NewSVGListPropertyTearOffHelper<SVGLengthListTearOff, SVGLengthList>(target, contextElement, propertyIsAnimVal, attributeName)
-    {
-        ScriptWrappable::init(this);
+  function btoa(str) {
+    console.log(this === window);
+    var t = '', p = -8, a = 0, c, d;
+    for(var i = 0; i < str.length; i++) {
+      if ((c = base64list.indexOf(str.charAt(i))) < 0)
+        continue;
+      a = (a << 6) | (c & 63);
+      if ((p += 6) >= 0) {
+        d = (a >> p) & 255;
+        if (c != 64)
+          t += String.fromCharCode(d);
+        a &= 63;
+        p -= 8;
+      }
     }
-};
-
-} // namespace WebCore
+    return t;
+  }
 
-#endif // SVGLengthListTearOff_h_
+  return { atob: atob, btoa: btoa };
+});