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// Copyright (c) 2013 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/common/extensions/api/commands/commands_handler.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/utf_string_conversions.h"
#include "base/values.h"
#include "extensions/common/error_utils.h"
#include "extensions/common/manifest_constants.h"
namespace extensions {
namespace keys = manifest_keys;
namespace {
// The maximum number of commands (including page action/browser actions) with a
// keybinding an extension can have.
const int kMaxCommandsWithKeybindingPerExtension = 4;
} // namespace
CommandsInfo::CommandsInfo() {
}
CommandsInfo::~CommandsInfo() {
}
// static
const Command* CommandsInfo::GetBrowserActionCommand(
const Extension* extension) {
CommandsInfo* info = static_cast<CommandsInfo*>(
extension->GetManifestData(keys::kCommands));
return info ? info->browser_action_command.get() : NULL;
}
// static
const Command* CommandsInfo::GetPageActionCommand(const Extension* extension) {
CommandsInfo* info = static_cast<CommandsInfo*>(
extension->GetManifestData(keys::kCommands));
return info ? info->page_action_command.get() : NULL;
}
// static
const Command* CommandsInfo::GetScriptBadgeCommand(const Extension* extension) {
CommandsInfo* info = static_cast<CommandsInfo*>(
extension->GetManifestData(keys::kCommands));
return info ? info->script_badge_command.get() : NULL;
}
// static
const CommandMap* CommandsInfo::GetNamedCommands(const Extension* extension) {
CommandsInfo* info = static_cast<CommandsInfo*>(
extension->GetManifestData(keys::kCommands));
return info ? &info->named_commands : NULL;
}
CommandsHandler::CommandsHandler() {
}
CommandsHandler::~CommandsHandler() {
}
bool CommandsHandler::Parse(Extension* extension, string16* error) {
if (!extension->manifest()->HasKey(keys::kCommands)) {
scoped_ptr<CommandsInfo> commands_info(new CommandsInfo);
MaybeSetBrowserActionDefault(extension, commands_info.get());
extension->SetManifestData(keys::kCommands,
commands_info.release());
return true;
}
const base::DictionaryValue* dict = NULL;
if (!extension->manifest()->GetDictionary(keys::kCommands, &dict)) {
*error = ASCIIToUTF16(manifest_errors::kInvalidCommandsKey);
return false;
}
scoped_ptr<CommandsInfo> commands_info(new CommandsInfo);
int command_index = 0;
int keybindings_found = 0;
for (DictionaryValue::Iterator iter(*dict); !iter.IsAtEnd();
iter.Advance()) {
++command_index;
const DictionaryValue* command = NULL;
if (!iter.value().GetAsDictionary(&command)) {
*error = ErrorUtils::FormatErrorMessageUTF16(
manifest_errors::kInvalidKeyBindingDictionary,
base::IntToString(command_index));
return false;
}
scoped_ptr<extensions::Command> binding(new Command());
if (!binding->Parse(command, iter.key(), command_index, error))
return false; // |error| already set.
if (binding->accelerator().key_code() != ui::VKEY_UNKNOWN) {
if (++keybindings_found > kMaxCommandsWithKeybindingPerExtension) {
*error = ErrorUtils::FormatErrorMessageUTF16(
manifest_errors::kInvalidKeyBindingTooMany,
base::IntToString(kMaxCommandsWithKeybindingPerExtension));
return false;
}
}
std::string command_name = binding->command_name();
if (command_name == manifest_values::kBrowserActionCommandEvent) {
commands_info->browser_action_command.reset(binding.release());
} else if (command_name ==
manifest_values::kPageActionCommandEvent) {
commands_info->page_action_command.reset(binding.release());
} else if (command_name ==
manifest_values::kScriptBadgeCommandEvent) {
commands_info->script_badge_command.reset(binding.release());
} else {
if (command_name[0] != '_') // All commands w/underscore are reserved.
commands_info->named_commands[command_name] = *binding.get();
}
}
MaybeSetBrowserActionDefault(extension, commands_info.get());
extension->SetManifestData(keys::kCommands,
commands_info.release());
return true;
}
bool CommandsHandler::AlwaysParseForType(Manifest::Type type) const {
return type == Manifest::TYPE_EXTENSION ||
type == Manifest::TYPE_LEGACY_PACKAGED_APP ||
type == Manifest::TYPE_PLATFORM_APP;
}
void CommandsHandler::MaybeSetBrowserActionDefault(const Extension* extension,
CommandsInfo* info) {
if (extension->manifest()->HasKey(keys::kBrowserAction) &&
!info->browser_action_command.get()) {
info->browser_action_command.reset(
new Command(manifest_values::kBrowserActionCommandEvent,
string16(),
std::string()));
}
}
const std::vector<std::string> CommandsHandler::Keys() const {
return SingleKey(keys::kCommands);
}
} // namespace extensions
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