chrome/browser/extensions/api/terminal/terminal_extension_helper.cc

   1 // Copyright (c) 2012 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 #include "chrome/browser/extensions/api/terminal/terminal_extension_helper.h"
   6
   7 #include "chrome/browser/profiles/profile.h"
   8 #include "chrome/common/extensions/extension_constants.h"
   9 #include "extensions/browser/extension_registry.h"
  10 #include "extensions/common/extension.h"
  11
  12 namespace extensions {
  13
  14 namespace {
  15
  16 const char kCroshExtensionEntryPoint[] = "/html/crosh.html";
  17
  18 const Extension* GetTerminalExtension(Profile* profile) {
  19   // Search order for terminal extensions.
  20   // We prefer hterm-dev, then hterm, then the builtin crosh extension.
  21   static const char* const kPossibleAppIds[] = {
  22     extension_misc::kHTermDevAppId,
  23     extension_misc::kHTermAppId,
  24     extension_misc::kCroshBuiltinAppId,
  25   };
  26
  27   // The hterm-dev should be first in the list.
  28   DCHECK_EQ(kPossibleAppIds[0], extension_misc::kHTermDevAppId);
  29
  30   const ExtensionSet& extensions =
  31       ExtensionRegistry::Get(profile)->enabled_extensions();
  32   for (size_t i = 0; i < arraysize(kPossibleAppIds); ++i) {
  33     const extensions::Extension* extension =
  34         extensions.GetByID(kPossibleAppIds[i]);
  35     if (extension)
  36       return extension;
  37   }
  38
  39   return NULL;
  40 }
  41
  42 }  // namespace
  43
  44 GURL TerminalExtensionHelper::GetCroshExtensionURL(Profile* profile) {
  45   GURL url;
  46   const extensions::Extension* extension = GetTerminalExtension(profile);
  47   if (extension)
  48     url = extension->GetResourceURL(kCroshExtensionEntryPoint);
  49   return url;
  50 }
  51
  52 }  // namespace extensions