Merge pull request #2933 from deepak1556/external_protocol_patch

protocol: allowing default clients to handle external unhandled protocols

atom/browser/atom_browser_client.cc

@@ -11,6 +11,7 @@
 #include "atom/browser/atom_access_token_store.h"
 #include "atom/browser/atom_browser_context.h"
 #include "atom/browser/atom_browser_main_parts.h"
+#include "atom/browser/atom_browser_resource_dispatcher_host_delegate.h"
 #include "atom/browser/atom_quota_permission_context.h"
 #include "atom/browser/atom_speech_recognition_manager_delegate.h"
 #include "atom/browser/browser.h"
@@ -30,6 +31,7 @@
 #include "content/public/browser/client_certificate_delegate.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
+#include "content/public/browser/resource_dispatcher_host.h"
 #include "content/public/browser/site_instance.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/web_preferences.h"
@@ -226,6 +228,13 @@ void AtomBrowserClient::SelectClientCertificate(
                                               delegate.Pass());
 }
 
+void AtomBrowserClient::ResourceDispatcherHostCreated() {
+  resource_dispatcher_host_delegate_.reset(
+      new AtomResourceDispatcherHostDelegate);
+  content::ResourceDispatcherHost::Get()->SetDelegate(
+      resource_dispatcher_host_delegate_.get());
+}
+
 brightray::BrowserMainParts* AtomBrowserClient::OverrideCreateBrowserMainParts(
     const content::MainFunctionParams&) {
   v8::V8::Initialize();  // Init V8 before creating main parts.

atom/browser/atom_browser_client.h

@@ -23,6 +23,8 @@ class SSLCertRequestInfo;
 
 namespace atom {
 
+class AtomResourceDispatcherHostDelegate;
+
 class AtomBrowserClient : public brightray::BrowserClient,
                           public content::RenderProcessHostObserver {
  public:
@@ -56,6 +58,7 @@ class AtomBrowserClient : public brightray::BrowserClient,
       content::WebContents* web_contents,
       net::SSLCertRequestInfo* cert_request_info,
       scoped_ptr<content::ClientCertificateDelegate> delegate) override;
+  void ResourceDispatcherHostCreated() override;
 
   // brightray::BrowserClient:
   brightray::BrowserMainParts* OverrideCreateBrowserMainParts(
@@ -68,6 +71,9 @@ class AtomBrowserClient : public brightray::BrowserClient,
   // pending_render_process => current_render_process.
   std::map<int, int> pending_processes_;
 
+  scoped_ptr<AtomResourceDispatcherHostDelegate>
+      resource_dispatcher_host_delegate_;
+
   DISALLOW_COPY_AND_ASSIGN(AtomBrowserClient);
 };
 

atom/browser/atom_browser_resource_dispatcher_host_delegate.cc

@@ -0,0 +1,54 @@
+// Copyright (c) 2015 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#include "atom/browser/atom_browser_resource_dispatcher_host_delegate.h"
+
+#include "atom/common/platform_util.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/web_contents.h"
+#include "content/public/browser/render_view_host.h"
+#include "net/base/escape.h"
+
+using content::BrowserThread;
+
+namespace atom {
+
+namespace {
+
+void HandleExternalProtocolInUI(const GURL& url,
+                                int render_process_id,
+                                int render_view_id) {
+  auto web_contents = content::WebContents::FromRenderViewHost(
+      content::RenderViewHost::FromID(render_process_id, render_view_id));
+  if (!web_contents)
+    return;
+
+  GURL escaped_url(net::EscapeExternalHandlerValue(url.spec()));
+  platform_util::OpenExternal(escaped_url);
+}
+
+}  // namespace
+
+AtomResourceDispatcherHostDelegate::AtomResourceDispatcherHostDelegate() {
+}
+
+AtomResourceDispatcherHostDelegate::~AtomResourceDispatcherHostDelegate() {
+}
+
+bool AtomResourceDispatcherHostDelegate::HandleExternalProtocol(
+    const GURL& url,
+    int render_process_id,
+    int render_view_id,
+    bool is_main_frame,
+    ui::PageTransition transition,
+    bool has_user_gesture) {
+  BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
+      base::Bind(&HandleExternalProtocolInUI,
+                 url,
+                 render_process_id,
+                 render_view_id));
+  return true;
+}
+
+}  // namespace atom

atom/browser/atom_browser_resource_dispatcher_host_delegate.h

@@ -0,0 +1,29 @@
+// Copyright (c) 2015 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#ifndef ATOM_BROWSER_ATOM_BROWSER_RESOURCE_DISPATCHER_HOST_DELEGATE_H_
+#define ATOM_BROWSER_ATOM_BROWSER_RESOURCE_DISPATCHER_HOST_DELEGATE_H_
+
+#include "content/public/browser/resource_dispatcher_host_delegate.h"
+
+namespace atom {
+
+class AtomResourceDispatcherHostDelegate
+    : public content::ResourceDispatcherHostDelegate {
+ public:
+  AtomResourceDispatcherHostDelegate();
+  ~AtomResourceDispatcherHostDelegate();
+
+  // content::ResourceDispatcherHostDelegate:
+  bool HandleExternalProtocol(const GURL& url,
+                              int render_process_id,
+                              int render_view_id,
+                              bool is_main_frame,
+                              ui::PageTransition transition,
+                              bool has_user_gesture) override;
+};
+
+}  // namespace atom
+
+#endif  // ATOM_BROWSER_ATOM_BROWSER_RESOURCE_DISPATCHER_HOST_DELEGATE_H_

filenames.gypi

@@ -125,6 +125,8 @@
       'atom/browser/atom_browser_main_parts.h',
       'atom/browser/atom_browser_main_parts_linux.cc',
       'atom/browser/atom_browser_main_parts_mac.mm',
+      'atom/browser/atom_browser_resource_dispatcher_host_delegate.cc',
+      'atom/browser/atom_browser_resource_dispatcher_host_delegate.h',
       'atom/browser/atom_javascript_dialog_manager.cc',
       'atom/browser/atom_javascript_dialog_manager.h',
       'atom/browser/atom_quota_permission_context.cc',