chrome/browser/extensions/extension_commands_global_registry.cc

   1 // Copyright (c) 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 #include "chrome/browser/extensions/extension_commands_global_registry.h"
   6
   7 #include "base/lazy_instance.h"
   8 #include "chrome/browser/extensions/api/commands/command_service.h"
   9 #include "chrome/browser/extensions/global_shortcut_listener.h"
  10 #include "chrome/browser/profiles/profile.h"
  11 #include "extensions/common/extension.h"
  12
  13 namespace extensions {
  14
  15 ExtensionCommandsGlobalRegistry::ExtensionCommandsGlobalRegistry(
  16     Profile* profile)
  17     : ExtensionKeybindingRegistry(
  18           profile, ExtensionKeybindingRegistry::ALL_EXTENSIONS, NULL),
  19       profile_(profile) {
  20   Init();
  21 }
  22
  23 ExtensionCommandsGlobalRegistry::~ExtensionCommandsGlobalRegistry() {
  24   for (EventTargets::const_iterator iter = event_targets_.begin();
  25        iter != event_targets_.end(); ++iter) {
  26     GlobalShortcutListener::GetInstance()->UnregisterAccelerator(
  27         iter->first, this);
  28   }
  29 }
  30
  31 static base::LazyInstance<
  32     ProfileKeyedAPIFactory<ExtensionCommandsGlobalRegistry> >
  33 g_factory = LAZY_INSTANCE_INITIALIZER;
  34
  35 // static
  36 ProfileKeyedAPIFactory<ExtensionCommandsGlobalRegistry>*
  37 ExtensionCommandsGlobalRegistry::GetFactoryInstance() {
  38   return &g_factory.Get();
  39 }
  40
  41 // static
  42 ExtensionCommandsGlobalRegistry*
  43 ExtensionCommandsGlobalRegistry::Get(Profile* profile) {
  44   return ProfileKeyedAPIFactory<
  45       ExtensionCommandsGlobalRegistry>::GetForProfile(profile);
  46 }
  47
  48 void ExtensionCommandsGlobalRegistry::AddExtensionKeybinding(
  49     const extensions::Extension* extension,
  50     const std::string& command_name) {
  51   // This object only handles named commands, not browser/page actions.
  52   if (ShouldIgnoreCommand(command_name))
  53     return;
  54
  55   extensions::CommandService* command_service =
  56       extensions::CommandService::Get(profile_);
  57   // Add all the active global keybindings, if any.
  58   extensions::CommandMap commands;
  59   if (!command_service->GetNamedCommands(
  60           extension->id(),
  61           extensions::CommandService::ACTIVE_ONLY,
  62           extensions::CommandService::GLOBAL,
  63           &commands))
  64     return;
  65
  66   extensions::CommandMap::const_iterator iter = commands.begin();
  67   for (; iter != commands.end(); ++iter) {
  68     if (!command_name.empty() && (iter->second.command_name() != command_name))
  69       continue;
  70     const ui::Accelerator& accelerator = iter->second.accelerator();
  71
  72     VLOG(0) << "Adding global keybinding for " << extension->name().c_str()
  73             << " " << command_name.c_str()
  74             << " key: " << accelerator.GetShortcutText();
  75
  76     if (event_targets_.find(accelerator) == event_targets_.end()) {
  77       if (!GlobalShortcutListener::GetInstance()->RegisterAccelerator(
  78               accelerator, this))
  79         continue;
  80     }
  81
  82     event_targets_[accelerator].push_back(
  83         std::make_pair(extension->id(), iter->second.command_name()));
  84     // Shortcuts except media keys have only one target in the list. See comment
  85     // about |event_targets_|.
  86     if (!extensions::CommandService::IsMediaKey(accelerator))
  87       DCHECK_EQ(1u, event_targets_[accelerator].size());
  88   }
  89 }
  90
  91 void ExtensionCommandsGlobalRegistry::RemoveExtensionKeybindingImpl(
  92     const ui::Accelerator& accelerator,
  93     const std::string& command_name) {
  94   VLOG(0) << "Removing keybinding for " << command_name.c_str();
  95
  96   GlobalShortcutListener::GetInstance()->UnregisterAccelerator(
  97       accelerator, this);
  98 }
  99
 100 void ExtensionCommandsGlobalRegistry::OnKeyPressed(
 101     const ui::Accelerator& accelerator) {
 102   ExtensionKeybindingRegistry::NotifyEventTargets(accelerator);
 103 }
 104
 105 }  // namespace extensions