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// Copyright (c) 2009 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/extensions/extension_toolbar_model.h"
#include "chrome/browser/extensions/extensions_service.h"
#include "chrome/common/extensions/extension.h"
#include "chrome/common/notification_service.h"
ExtensionToolbarModel::ExtensionToolbarModel(ExtensionsService* service)
: service_(service) {
DCHECK(service_);
registrar_.Add(this, NotificationType::EXTENSION_LOADED,
Source<Profile>(service_->profile()));
registrar_.Add(this, NotificationType::EXTENSION_UNLOADED,
Source<Profile>(service_->profile()));
registrar_.Add(this, NotificationType::EXTENSION_UNLOADED_DISABLED,
Source<Profile>(service_->profile()));
registrar_.Add(this, NotificationType::EXTENSIONS_READY,
Source<Profile>(service_->profile()));
}
ExtensionToolbarModel::~ExtensionToolbarModel() {
}
void ExtensionToolbarModel::AddObserver(Observer* observer) {
observers_.AddObserver(observer);
}
void ExtensionToolbarModel::RemoveObserver(Observer* observer) {
observers_.RemoveObserver(observer);
}
void ExtensionToolbarModel::Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details) {
if (type == NotificationType::EXTENSIONS_READY) {
for (size_t i = 0; i < service_->extensions()->size(); ++i) {
Extension* extension = service_->GetExtensionById(
service_->extensions()->at(i)->id(), false);
AddExtension(extension);
}
return;
}
if (!service_->is_ready())
return;
Extension* extension = Details<Extension>(details).ptr();
if (type == NotificationType::EXTENSION_LOADED) {
AddExtension(extension);
} else if (type == NotificationType::EXTENSION_UNLOADED ||
type == NotificationType::EXTENSION_UNLOADED_DISABLED) {
RemoveExtension(extension);
} else {
NOTREACHED() << "Received unexpected notification";
}
}
void ExtensionToolbarModel::AddExtension(Extension* extension) {
// We only care about extensions with browser actions.
if (!extension->browser_action())
return;
toolitems_.push_back(extension);
FOR_EACH_OBSERVER(Observer, observers_,
BrowserActionAdded(extension, toolitems_.size() - 1));
}
void ExtensionToolbarModel::RemoveExtension(Extension* extension) {
ExtensionList::iterator pos = std::find(begin(), end(), extension);
if (pos != end()) {
toolitems_.erase(pos);
FOR_EACH_OBSERVER(Observer, observers_,
BrowserActionRemoved(extension));
}
}
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