[Pkg-javascript-commits] [dojo] 10/149: Add Blob support for Safari <7

[David Prévot]

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taffit pushed a commit to branch master
in repository dojo.

commit fb7a76cb0a1dd85463dc419d0814d8c8b9877125
Author: Colin Snover <github.com at zetafleet.com>
Date:   Thu Aug 14 02:05:54 2014 +0000

    Add Blob support for Safari <7
    
    Fixes #18218.
---
 request/handlers.js |  4 ++++
 request/xhr.js      | 19 +++++++++++++++++--
 2 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/request/handlers.js b/request/handlers.js
index 59b7d86..5cd4e20 100644
--- a/request/handlers.js
+++ b/request/handlers.js
@@ -62,6 +62,10 @@ define([
 	}
 
 	var handleNativeResponse = function(response) {
+		if(!has('native-xhr2-blob') && response.options.handleAs === 'blob' && typeof Blob !== 'undefined'){
+			return new Blob([ response.xhr.response ], { type: response.xhr.getResponseHeader('Content-Type') });
+		}
+
 		return response.xhr.response;
 	}
 
diff --git a/request/xhr.js b/request/xhr.js
index 247747d..fff0b54 100644
--- a/request/xhr.js
+++ b/request/xhr.js
@@ -31,9 +31,24 @@ define([
 		return has('native-xhr') && typeof new XMLHttpRequest().responseType !== 'undefined';
 	});
 
+	has.add('native-xhr2-blob', function(){
+		if(!has('native-response-type')){ return; }
+		var x = new XMLHttpRequest();
+		x.open('GET', '/', true);
+		x.responseType = 'blob';
+		// will not be set if unsupported
+		var responseType = x.responseType;
+		x.abort();
+		return responseType === 'blob';
+	});
+
 	// Google Chrome doesn't support "json" response type
 	// up to version 30, so it's intentionally not included here
-	var nativeResponseTypes = {'blob': 1, 'document': 1, 'arraybuffer': 1};
+	var nativeResponseTypes = {
+		'blob': has('native-xhr2-blob') ? 'blob' : 'arraybuffer',
+		'document': 'document',
+		'arraybuffer': 'arraybuffer'
+	};
 
 	function handleResponse(response, error){
 		var _xhr = response.xhr;
@@ -197,7 +212,7 @@ define([
 			}
 
 			if(has('native-response-type') && options.handleAs in nativeResponseTypes) {
-				_xhr.responseType = options.handleAs;
+				_xhr.responseType = nativeResponseTypes[options.handleAs];
 			}
 
 			var headers = options.headers,

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