// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chrome/browser/ui/views/extensions/extension_keybinding_registry_views.h"

#include "chrome/browser/extensions/api/commands/command_service.h"
#include "chrome/browser/extensions/extension_keybinding_registry.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/extensions/accelerator_priority.h"
#include "extensions/common/extension.h"
#include "ui/views/focus/focus_manager.h"

// static
void extensions::ExtensionKeybindingRegistry::SetShortcutHandlingSuspended(
    bool suspended) {
  views::FocusManager::set_shortcut_handling_suspended(suspended);
}

ExtensionKeybindingRegistryViews::ExtensionKeybindingRegistryViews(
    Profile* profile,
    views::FocusManager* focus_manager,
    ExtensionFilter extension_filter,
    Delegate* delegate)
    : ExtensionKeybindingRegistry(profile, extension_filter, delegate),
      profile_(profile),
      focus_manager_(focus_manager) {
  Init();
}

ExtensionKeybindingRegistryViews::~ExtensionKeybindingRegistryViews() {
  focus_manager_->UnregisterAccelerators(this);
}

void ExtensionKeybindingRegistryViews::AddExtensionKeybinding(
    const extensions::Extension* extension,
    const std::string& command_name) {
  // This object only handles named commands, not browser/page actions.
  if (ShouldIgnoreCommand(command_name))
    return;

  extensions::CommandService* command_service =
      extensions::CommandService::Get(profile_);
  // Add all the active keybindings (except page actions and browser actions,
  // which are handled elsewhere).
  extensions::CommandMap commands;
  if (!command_service->GetNamedCommands(
          extension->id(),
          extensions::CommandService::ACTIVE_ONLY,
          extensions::CommandService::REGULAR,
          &commands))
    return;
  extensions::CommandMap::const_iterator iter = commands.begin();
  for (; iter != commands.end(); ++iter) {
    if (!command_name.empty() && (iter->second.command_name() != command_name))
      continue;
    const ui::Accelerator &accelerator = iter->second.accelerator();
    if (!IsAcceleratorRegistered(accelerator)) {
      focus_manager_->RegisterAccelerator(
          accelerator, GetAcceleratorPriority(accelerator, extension), this);
    }

    AddEventTarget(accelerator, extension->id(), iter->second.command_name());
  }
}

void ExtensionKeybindingRegistryViews::RemoveExtensionKeybindingImpl(
    const ui::Accelerator& accelerator,
    const std::string& command_name) {
  focus_manager_->UnregisterAccelerator(accelerator, this);
}

bool ExtensionKeybindingRegistryViews::AcceleratorPressed(
    const ui::Accelerator& accelerator) {
  std::string extension_id, command_name;
  GetFirstTarget(accelerator, &extension_id, &command_name);
  const ui::AcceleratorManager::HandlerPriority priority =
      GetAcceleratorPriorityById(accelerator, extension_id, browser_context());
  // Normal priority shortcuts must be handled via standard browser commands to
  // be processed at the proper time.
  return (priority == ui::AcceleratorManager::kHighPriority) &&
      ExtensionKeybindingRegistry::NotifyEventTargets(accelerator);
}

bool ExtensionKeybindingRegistryViews::CanHandleAccelerators() const {
  return true;
}