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// 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/ash/user_gesture_handler.h"
#include "ash/wm/window_util.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_list.h"
#include "chrome/browser/ui/browser_window.h"
#include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
#include "content/public/browser/web_contents.h"
namespace {
// Returns the currently-active WebContents belonging to the active browser, or
// NULL if there's no currently-active browser.
content::WebContents* GetActiveWebContents() {
Browser* browser = BrowserList::GetLastActive();
if (!browser)
return NULL;
if (!ash::wm::IsActiveWindow(browser->window()->GetNativeHandle()))
return NULL;
TabContentsWrapper* wrapper = browser->GetSelectedTabContentsWrapper();
if (!wrapper)
return NULL;
return wrapper->web_contents();
}
} // namespace
UserGestureHandler::UserGestureHandler() {}
UserGestureHandler::~UserGestureHandler() {}
bool UserGestureHandler::OnUserGesture(
aura::client::UserGestureClient::Gesture gesture) {
switch (gesture) {
case aura::client::UserGestureClient::GESTURE_BACK: {
content::WebContents* contents = GetActiveWebContents();
if (contents && contents->GetController().CanGoBack()) {
contents->GetController().GoBack();
return true;
}
break;
}
case aura::client::UserGestureClient::GESTURE_FORWARD: {
content::WebContents* contents = GetActiveWebContents();
if (contents && contents->GetController().CanGoForward()) {
contents->GetController().GoForward();
return true;
}
break;
}
default:
break;
}
return false;
}
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