components/nacl/common/nacl_browser_delegate.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef COMPONENTS_NACL_COMMON_NACL_BROWSER_DELEGATE_H_
   6 #define COMPONENTS_NACL_COMMON_NACL_BROWSER_DELEGATE_H_
   7
   8 #include <string>
   9
  10 #include "base/callback_forward.h"
  11
  12 namespace base {
  13 class FilePath;
  14 }
  15
  16 namespace ppapi {
  17 namespace host {
  18 class HostFactory;
  19 }
  20 }
  21
  22 namespace content {
  23 class BrowserPpapiHost;
  24 }
  25
  26 // Encapsulates the dependencies of NaCl code on chrome/, to avoid a direct
  27 // dependency on chrome/.
  28 class NaClBrowserDelegate {
  29  public:
  30   virtual ~NaClBrowserDelegate() {}
  31
  32   // Show an infobar to the user.
  33   virtual void ShowNaClInfobar(int render_process_id, int render_view_id,
  34                                int error_id) = 0;
  35   // Returns whether dialogs are allowed. This is used to decide if to add the
  36   // command line switch kNoErrorDialogs.
  37   virtual bool DialogsAreSuppressed() = 0;
  38   // Returns true on success, false otherwise. On success |cache_dir| contains
  39   // the cache directory. On failure, it is not changed.
  40   virtual bool GetCacheDirectory(base::FilePath* cache_dir) = 0;
  41   // Returns true on success, false otherwise. On success |plugin_dir| contains
  42   // the directory where the plugins are located. On failure, it is not
  43   // changed.
  44   virtual bool GetPluginDirectory(base::FilePath* plugin_dir) = 0;
  45   // Returns true on success, false otherwise. On success |pnacl_dir| contains
  46   // the directory where the PNaCl files are located. On failure, it is not
  47   // changed.
  48   virtual bool GetPnaclDirectory(base::FilePath* pnacl_dir) = 0;
  49   // Returns true on success, false otherwise. On success |user_dir| contains
  50   // the user data directory. On failure, it is not changed.
  51   virtual bool GetUserDirectory(base::FilePath* user_dir) = 0;
  52   // Returns the version as a string. This string is used to invalidate
  53   // validator cache entries when Chromium is upgraded
  54   virtual std::string GetVersionString() const = 0;
  55   // Returns a HostFactory that hides the details of its embedder.
  56   virtual ppapi::host::HostFactory* CreatePpapiHostFactory(
  57       content::BrowserPpapiHost* ppapi_host) = 0;
  58   // Install PNaCl if this operation is supported. On success, the |installed|
  59   // callback should be called with true, and on failure (or not supported),
  60   // the |installed| callback should be called with false.
  61   // TODO(jvoung): Add the progress callback as well.
  62   virtual void TryInstallPnacl(
  63       const base::Callback<void(bool)>& installed) = 0;
  64 };
  65
  66 #endif  // COMPONENTS_NACL_COMMON_NACL_BROWSER_DELEGATE_H_