Implementation of Blob Constructor with test changes

components/script/dom/blob.rs

@@ -4,11 +4,14 @@
 
 use dom::bindings::codegen::Bindings::BlobBinding;
 use dom::bindings::codegen::Bindings::BlobBinding::BlobMethods;
+use dom::bindings::codegen::UnionTypes::BlobOrString;
 use dom::bindings::error::Fallible;
 use dom::bindings::global::GlobalRef;
 use dom::bindings::js::Root;
 use dom::bindings::reflector::{Reflectable, Reflector, reflect_dom_object};
 use dom::bindings::trace::JSTraceable;
+use encoding::all::UTF_8;
+use encoding::types::{EncoderTrap, Encoding};
 use num::ToPrimitive;
 use std::ascii::AsciiExt;
 use std::borrow::ToOwned;
@@ -120,16 +123,29 @@ impl Blob {
 
     // https://w3c.github.io/FileAPI/#constructorBlob
     pub fn Constructor_(global: GlobalRef,
-                        blobParts: DOMString,
+                        blobParts: Vec<BlobOrString>,
                         blobPropertyBag: &BlobBinding::BlobPropertyBag)
                         -> Fallible<Root<Blob>> {
-        // TODO: accept other blobParts types - ArrayBuffer or ArrayBufferView or Blob
+
+        // TODO: accept other blobParts types - ArrayBuffer or ArrayBufferView
+        let bytes: Vec<u8> = blobParts.iter()
+                                .flat_map(|bPart| {
+                                    match bPart {
+                                        &BlobOrString::String(ref s) => {
+                                            UTF_8.encode(s, EncoderTrap::Replace).unwrap()
+                                        },
+                                        &BlobOrString::Blob(ref b) => {
+                                            b.get_data().get_bytes().to_vec()
+                                        },
+                                    }
+                                })
+                                .collect();
         let typeString = if is_ascii_printable(&blobPropertyBag.type_) {
             &*blobPropertyBag.type_
         } else {
             ""
         };
-        Ok(Blob::new(global, blobParts.into(), &typeString.to_ascii_lowercase()))
+        Ok(Blob::new(global, bytes, &typeString.to_ascii_lowercase()))
     }
 
     pub fn get_data(&self) -> &DataSlice {

components/script/dom/webidls/Blob.webidl

@@ -4,11 +4,9 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 // http://dev.w3.org/2006/webapi/FileAPI/#dfn-Blob
-//[Exposed=Window,Worker][Constructor,
-// Constructor(sequence<(ArrayBuffer or ArrayBufferView or Blob or DOMString)> blobParts,
-//             optional BlobPropertyBag options)]
 [Constructor,
- Constructor(DOMString blobParts, optional BlobPropertyBag options),
+ Constructor(sequence<(/*ArrayBuffer or ArrayBufferView or */Blob or DOMString)> blobParts,
+  optional BlobPropertyBag options),
  Exposed=Window/*,Worker*/]
 interface Blob {
 

tests/wpt/metadata/FileAPI/blob/Blob-constructor.html.ini

@@ -3,22 +3,7 @@
   [Passing non-objects, Dates and RegExps for blobParts should throw a TypeError.]
     expected: FAIL
 
-  [A plain object should be treated as a sequence for the blobParts argument.]
-    expected: FAIL
-
-  [A plain object with a length property should be treated as a sequence for the blobParts argument.]
-    expected: FAIL
-
-  [A Uint8Array object should be treated as a sequence for the blobParts argument.]
-    expected: FAIL
-
-  [The length getter should be invoked and any exceptions should be propagated.]
-    expected: FAIL
-
-  [A platform object that supports indexed properties should be treated as a sequence for the blobParts argument (overwritten 'length'.)]
-    expected: FAIL
-
-  [ToUint32 should be applied to the length and any exceptions should be propagated.]
+  [Passing an platform object that supports indexed properties as the blobParts array should work (window).]
     expected: FAIL
 
   [Getters and value conversions should happen in order until an exception is thrown.]
@@ -30,9 +15,6 @@
   [Changes to the blobParts array should be reflected in the returned Blob (unshift).]
     expected: FAIL
 
-  [ToString should be called on elements of the blobParts array.]
-    expected: FAIL
-
   [ArrayBuffer elements of the blobParts array should be supported.]
     expected: FAIL
 
@@ -42,9 +24,6 @@
   [Passing a Float64Array as element of the blobParts array should work.]
     expected: FAIL
 
-  [Passing an element as the blobParts array should work.]
-    expected: FAIL
-
   [Passing an platform object that supports indexed properties as the blobParts array should work (window with custom toString).]
     expected: FAIL
 
@@ -54,12 +33,6 @@
   [Passing a platform array object as the blobParts array should work (MessagePort[\]).]
     expected: FAIL
 
-  [Passing a platform array object as the blobParts array should work (Attr[\]).]
-    expected: FAIL
-
-  [Array with two blobs]
-    expected: FAIL
-
   [Array with two buffers]
     expected: FAIL
 
@@ -71,10 +44,3 @@
 
   [no-argument Blob constructor without 'new']
     expected: FAIL
-
-  [A plain object with @@iterator should be treated as a sequence for the blobParts argument.]
-    expected: FAIL
-
-  [A plain object with @@iterator and a length property should be treated as a sequence for the blobParts argument.]
-    expected: FAIL
-

tests/wpt/metadata/FileAPI/blob/Blob-slice.html.ini

@@ -1,65 +1,5 @@
 [Blob-slice.html]
   type: testharness
-  [Slicing test: slice (1,0).]
-    expected: FAIL
-
-  [Slicing test: slice (1,2).]
-    expected: FAIL
-
-  [Slicing test: slice (1,3).]
-    expected: FAIL
-
-  [Slicing test: slice (1,4).]
-    expected: FAIL
-
-  [Slicing test: slice (1,5).]
-    expected: FAIL
-
-  [Slicing test: slice (1,6).]
-    expected: FAIL
-
-  [Slicing test: slice (1,7).]
-    expected: FAIL
-
-  [Slicing test: slice (2,1).]
-    expected: FAIL
-
-  [Slicing test: slice (2,2).]
-    expected: FAIL
-
-  [Slicing test: slice (2,3).]
-    expected: FAIL
-
-  [Slicing test: slice (3,0).]
-    expected: FAIL
-
-  [Slicing test: slice (3,1).]
-    expected: FAIL
-
-  [Slicing test: slice (3,2).]
-    expected: FAIL
-
-  [Slicing test: slice (3,3).]
-    expected: FAIL
-
-  [Slicing test: slice (3,4).]
-    expected: FAIL
-
-  [Slicing test: slice (4,0).]
-    expected: FAIL
-
-  [Slicing test: slice (4,1).]
-    expected: FAIL
-
-  [Slicing test: slice (4,2).]
-    expected: FAIL
-
-  [Slicing test: slice (4,3).]
-    expected: FAIL
-
-  [Slicing test: slice (4,4).]
-    expected: FAIL
-
   [Slicing test: slice (5,0).]
     expected: FAIL
 
@@ -158,4 +98,3 @@
 
   [Invalid contentType ("te xt/plain")]
     expected: FAIL
-