Intercept HTTP requests for documents that GView is capable of displaying (such

as pdf) and redirect the user to the appropriate URL for viewing.

Original patch by skrulx@gmail.com
http://codereview.chromium.org/174016

Review URL: http://codereview.chromium.org/199019

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@25496 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 41 insertions, 0 deletions

diff --git a/chrome/browser/chromeos/gview_request_interceptor.h b/chrome/browser/chromeos/gview_request_interceptor.h
new file mode 100644
index 0000000..ca6d2ae
--- /dev/null
+++ b/chrome/browser/chromeos/gview_request_interceptor.h
@@ -0,0 +1,41 @@
+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_CHROMEOS_GVIEW_REQUEST_INTERCEPTOR_H__
+#define CHROME_BROWSER_CHROMEOS_GVIEW_REQUEST_INTERCEPTOR_H__
+
+#include <string>
+#include "base/hash_tables.h"
+#include "net/url_request/url_request.h"
+
+// This class integrates the Google Document Viewer into ChromeOS,
+// enabling the viewing of supported document types that the user
+// clicks on.  This class will intercept requests to supported
+// document types (such as PDF) and redirect the request to the Google
+// Document Viewer, including the document's original URL as a
+// parameter.
+class GViewRequestInterceptor : public URLRequest::Interceptor {
+ public:
+  GViewRequestInterceptor();
+  virtual ~GViewRequestInterceptor();
+
+  // Always returns NULL because we don't want to attempt a redirect
+  // before seeing the detected mime type of the request.
+  virtual URLRequestJob* MaybeIntercept(URLRequest* request);
+
+  // Determines if the requested document can be viewed by the Google
+  // Document Viewer.  If it can, returns a URLRequestJob that
+  // redirects the browser to the view URL.
+  virtual URLRequestJob* MaybeInterceptResponse(URLRequest* request);
+
+  // Singleton accessor.
+  static URLRequest::Interceptor* GetGViewRequestInterceptor();
+
+ private:
+  // The list of supported mime types.
+  base::hash_set<std::string> supported_mime_types_;
+};
+
+#endif  // CHROME_BROWSER_CHROMEOS_GVIEW_REQUEST_INTERCEPTOR_H__
+