1/* 2 * Copyright (C) 2010 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#import "WebDeviceOrientationClient.h" 27 28#import "WebDeviceOrientationInternal.h" 29#import "WebDeviceOrientationProvider.h" 30#import "WebViewInternal.h" 31#import <objc/objc-runtime.h> 32 33using namespace WebCore; 34 35WebDeviceOrientationClient::WebDeviceOrientationClient(WebView* webView) 36 : m_webView(webView) 37 , m_controller(0) 38{ 39} 40 41void WebDeviceOrientationClient::setController(DeviceOrientationController* controller) 42{ 43 // This is called by the Page constructor before our WebView has the provider set up. 44 // MemoryCache the controller for later use. 45 m_controller = controller; 46} 47 48void WebDeviceOrientationClient::startUpdating() 49{ 50 [getProvider() startUpdating]; 51} 52 53void WebDeviceOrientationClient::stopUpdating() 54{ 55 [getProvider() stopUpdating]; 56} 57 58DeviceOrientation* WebDeviceOrientationClient::lastOrientation() const 59{ 60 return core([getProvider() lastOrientation]); 61} 62 63void WebDeviceOrientationClient::deviceOrientationControllerDestroyed() 64{ 65 delete this; 66} 67 68id<WebDeviceOrientationProvider> WebDeviceOrientationClient::getProvider() const 69{ 70 if (!m_provider) { 71 m_provider = [m_webView _deviceOrientationProvider]; 72 if ([m_provider respondsToSelector:@selector(setController:)]) 73 objc_msgSend(m_provider, @selector(setController:), m_controller); 74 } 75 return m_provider; 76} 77