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 "extensions/common/extension.h"
11
12 namespace extensions {
13
ExtensionCommandsGlobalRegistry(content::BrowserContext * context)14 ExtensionCommandsGlobalRegistry::ExtensionCommandsGlobalRegistry(
15 content::BrowserContext* context)
16 : ExtensionKeybindingRegistry(context,
17 ExtensionKeybindingRegistry::ALL_EXTENSIONS,
18 NULL),
19 browser_context_(context) {
20 Init();
21 }
22
~ExtensionCommandsGlobalRegistry()23 ExtensionCommandsGlobalRegistry::~ExtensionCommandsGlobalRegistry() {
24 if (!IsEventTargetsEmpty()) {
25 GlobalShortcutListener* global_shortcut_listener =
26 GlobalShortcutListener::GetInstance();
27
28 // Resume GlobalShortcutListener before we clean up if the shortcut handling
29 // is currently suspended.
30 if (global_shortcut_listener->IsShortcutHandlingSuspended())
31 global_shortcut_listener->SetShortcutHandlingSuspended(false);
32
33 global_shortcut_listener->UnregisterAccelerators(this);
34 }
35 }
36
37 static base::LazyInstance<
38 BrowserContextKeyedAPIFactory<ExtensionCommandsGlobalRegistry> > g_factory =
39 LAZY_INSTANCE_INITIALIZER;
40
41 // static
42 BrowserContextKeyedAPIFactory<ExtensionCommandsGlobalRegistry>*
GetFactoryInstance()43 ExtensionCommandsGlobalRegistry::GetFactoryInstance() {
44 return g_factory.Pointer();
45 }
46
47 // static
Get(content::BrowserContext * context)48 ExtensionCommandsGlobalRegistry* ExtensionCommandsGlobalRegistry::Get(
49 content::BrowserContext* context) {
50 return BrowserContextKeyedAPIFactory<ExtensionCommandsGlobalRegistry>::Get(
51 context);
52 }
53
54 // static
SetShortcutHandlingSuspended(bool suspended)55 void ExtensionCommandsGlobalRegistry::SetShortcutHandlingSuspended(
56 bool suspended) {
57 GlobalShortcutListener::GetInstance()->SetShortcutHandlingSuspended(
58 suspended);
59 }
60
AddExtensionKeybinding(const extensions::Extension * extension,const std::string & command_name)61 void ExtensionCommandsGlobalRegistry::AddExtensionKeybinding(
62 const extensions::Extension* extension,
63 const std::string& command_name) {
64 // This object only handles named commands, not browser/page actions.
65 if (ShouldIgnoreCommand(command_name))
66 return;
67
68 extensions::CommandService* command_service =
69 extensions::CommandService::Get(browser_context_);
70 // Add all the active global keybindings, if any.
71 extensions::CommandMap commands;
72 if (!command_service->GetNamedCommands(
73 extension->id(),
74 extensions::CommandService::ACTIVE_ONLY,
75 extensions::CommandService::GLOBAL,
76 &commands))
77 return;
78
79 extensions::CommandMap::const_iterator iter = commands.begin();
80 for (; iter != commands.end(); ++iter) {
81 if (!command_name.empty() && (iter->second.command_name() != command_name))
82 continue;
83 const ui::Accelerator& accelerator = iter->second.accelerator();
84
85 VLOG(0) << "Adding global keybinding for " << extension->name().c_str()
86 << " " << command_name.c_str()
87 << " key: " << accelerator.GetShortcutText();
88
89 if (!IsAcceleratorRegistered(accelerator)) {
90 if (!GlobalShortcutListener::GetInstance()->RegisterAccelerator(
91 accelerator, this))
92 continue;
93 }
94
95 AddEventTarget(accelerator, extension->id(), iter->second.command_name());
96 }
97 }
98
RemoveExtensionKeybindingImpl(const ui::Accelerator & accelerator,const std::string & command_name)99 void ExtensionCommandsGlobalRegistry::RemoveExtensionKeybindingImpl(
100 const ui::Accelerator& accelerator,
101 const std::string& command_name) {
102 VLOG(0) << "Removing keybinding for " << command_name.c_str();
103
104 GlobalShortcutListener::GetInstance()->UnregisterAccelerator(
105 accelerator, this);
106 }
107
OnKeyPressed(const ui::Accelerator & accelerator)108 void ExtensionCommandsGlobalRegistry::OnKeyPressed(
109 const ui::Accelerator& accelerator) {
110 ExtensionKeybindingRegistry::NotifyEventTargets(accelerator);
111 }
112
113 } // namespace extensions
114