src/chrome/browser/extensions/page_action_controller.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/page_action_controller.h"
   6
   7 #include <set>
   8
   9 #include "base/lazy_instance.h"
  10 #include "base/metrics/histogram.h"
  11 #include "chrome/browser/extensions/api/extension_action/extension_action_api.h"
  12 #include "chrome/browser/extensions/component_loader.h"
  13 #include "chrome/browser/extensions/extension_action.h"
  14 #include "chrome/browser/extensions/extension_action_manager.h"
  15 #include "chrome/browser/extensions/extension_tab_util.h"
  16 #include "chrome/browser/extensions/tab_helper.h"
  17 #include "chrome/browser/profiles/profile.h"
  18 #include "chrome/browser/sessions/session_id.h"
  19 #include "content/public/browser/invalidate_type.h"
  20 #include "content/public/browser/navigation_details.h"
  21 #include "content/public/browser/web_contents.h"
  22 #include "extensions/browser/extension_registry.h"
  23 #include "extensions/common/extension_set.h"
  24
  25 namespace extensions {
  26
  27 // Keeps track of the profiles for which we've sent UMA statistics.
  28 base::LazyInstance<std::set<Profile*> > g_reported_for_profiles =
  29     LAZY_INSTANCE_INITIALIZER;
  30
  31 PageActionController::PageActionController(content::WebContents* web_contents)
  32     : content::WebContentsObserver(web_contents) {}
  33
  34 PageActionController::~PageActionController() {}
  35
  36 std::vector<ExtensionAction*> PageActionController::GetCurrentActions() const {
  37   ExtensionRegistry* registry = GetExtensionRegistry();
  38   if (!registry)
  39     return std::vector<ExtensionAction*>();
  40
  41   // Accumulate the list of all page actions to display.
  42   std::vector<ExtensionAction*> current_actions;
  43
  44   ExtensionActionManager* extension_action_manager =
  45       ExtensionActionManager::Get(GetProfile());
  46
  47   const ExtensionSet& enabled_set = registry->enabled_extensions();
  48   for (ExtensionSet::const_iterator i = enabled_set.begin();
  49        i != enabled_set.end();
  50        ++i) {
  51     ExtensionAction* action =
  52         extension_action_manager->GetPageAction(*i->get());
  53     if (action)
  54       current_actions.push_back(action);
  55   }
  56
  57   if (!g_reported_for_profiles.Get().count(GetProfile())) {
  58     UMA_HISTOGRAM_COUNTS_100("PageActionController.ExtensionsWithPageActions",
  59                              current_actions.size());
  60     g_reported_for_profiles.Get().insert(GetProfile());
  61   }
  62
  63   return current_actions;
  64 }
  65
  66 LocationBarController::Action PageActionController::OnClicked(
  67     const std::string& extension_id, int mouse_button) {
  68   ExtensionRegistry* registry = GetExtensionRegistry();
  69   if (!registry)
  70     return ACTION_NONE;
  71
  72   const Extension* extension =
  73       registry->enabled_extensions().GetByID(extension_id);
  74   CHECK(extension);
  75   ExtensionAction* page_action =
  76       ExtensionActionManager::Get(GetProfile())->GetPageAction(*extension);
  77   CHECK(page_action);
  78   int tab_id = ExtensionTabUtil::GetTabId(web_contents());
  79
  80   extensions::TabHelper::FromWebContents(web_contents())->
  81       active_tab_permission_granter()->GrantIfRequested(extension);
  82
  83   switch (mouse_button) {
  84     case 1:  // left
  85     case 2:  // middle
  86       if (page_action->HasPopup(tab_id))
  87         return ACTION_SHOW_POPUP;
  88
  89       ExtensionActionAPI::PageActionExecuted(
  90           GetProfile(), *page_action, tab_id,
  91           web_contents()->GetURL().spec(), mouse_button);
  92       return ACTION_NONE;
  93
  94     case 3:  // right
  95       return extension->ShowConfigureContextMenus() ?
  96           ACTION_SHOW_CONTEXT_MENU : ACTION_NONE;
  97   }
  98
  99   return ACTION_NONE;
 100 }
 101
 102 void PageActionController::NotifyChange() {
 103   web_contents()->NotifyNavigationStateChanged(
 104       content::INVALIDATE_TYPE_PAGE_ACTIONS);
 105 }
 106
 107 void PageActionController::DidNavigateMainFrame(
 108     const content::LoadCommittedDetails& details,
 109     const content::FrameNavigateParams& params) {
 110   if (details.is_in_page)
 111     return;
 112
 113   const std::vector<ExtensionAction*> current_actions = GetCurrentActions();
 114
 115   if (current_actions.empty())
 116     return;
 117
 118   for (size_t i = 0; i < current_actions.size(); ++i) {
 119     current_actions[i]->ClearAllValuesForTab(
 120         SessionID::IdForTab(web_contents()));
 121   }
 122
 123   NotifyChange();
 124 }
 125
 126 Profile* PageActionController::GetProfile() const {
 127   content::WebContents* web_contents = this->web_contents();
 128   if (web_contents)
 129     return Profile::FromBrowserContext(web_contents->GetBrowserContext());
 130
 131   return NULL;
 132 }
 133
 134 ExtensionRegistry* PageActionController::GetExtensionRegistry() const {
 135   Profile* profile = this->GetProfile();
 136   return profile ? ExtensionRegistry::Get(profile) : NULL;
 137 }
 138
 139 }  // namespace extensions