1// Copyright 2013 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#include "content/renderer/media/midi_dispatcher.h" 6 7#include "base/bind.h" 8#include "base/message_loop/message_loop.h" 9#include "content/common/media/midi_messages.h" 10#include "third_party/WebKit/public/platform/WebString.h" 11#include "third_party/WebKit/public/web/WebMIDIPermissionRequest.h" 12#include "third_party/WebKit/public/web/WebSecurityOrigin.h" 13#include "third_party/WebKit/public/web/WebUserGestureIndicator.h" 14 15using blink::WebMIDIPermissionRequest; 16using blink::WebSecurityOrigin; 17 18namespace content { 19 20MidiDispatcher::MidiDispatcher(RenderFrame* render_frame) 21 : RenderFrameObserver(render_frame) { 22} 23 24MidiDispatcher::~MidiDispatcher() {} 25 26bool MidiDispatcher::OnMessageReceived(const IPC::Message& message) { 27 bool handled = true; 28 IPC_BEGIN_MESSAGE_MAP(MidiDispatcher, message) 29 IPC_MESSAGE_HANDLER(MidiMsg_SysExPermissionApproved, 30 OnSysExPermissionApproved) 31 IPC_MESSAGE_UNHANDLED(handled = false) 32 IPC_END_MESSAGE_MAP() 33 return handled; 34} 35 36void MidiDispatcher::requestSysexPermission( 37 const WebMIDIPermissionRequest& request) { 38 int bridge_id = requests_.Add(new WebMIDIPermissionRequest(request)); 39 WebSecurityOrigin security_origin = request.securityOrigin(); 40 GURL url(security_origin.toString()); 41 Send(new MidiHostMsg_RequestSysExPermission(routing_id(), bridge_id, url, 42 blink::WebUserGestureIndicator::isProcessingUserGesture())); 43} 44 45void MidiDispatcher::cancelSysexPermissionRequest( 46 const WebMIDIPermissionRequest& request) { 47 for (Requests::iterator it(&requests_); !it.IsAtEnd(); it.Advance()) { 48 WebMIDIPermissionRequest* value = it.GetCurrentValue(); 49 if (value->equals(request)) { 50 base::string16 origin = request.securityOrigin().toString(); 51 Send(new MidiHostMsg_CancelSysExPermissionRequest( 52 routing_id(), it.GetCurrentKey(), GURL(origin))); 53 // The request will be removed by OnSysExPermissionApproved once 54 // the blink MIDIAccessInitializer object is deleted. 55 break; 56 } 57 } 58} 59 60void MidiDispatcher::OnSysExPermissionApproved(int bridge_id, 61 bool is_allowed) { 62 // |request| can be NULL when the request is canceled. 63 WebMIDIPermissionRequest* request = requests_.Lookup(bridge_id); 64 if (!request) 65 return; 66 request->setIsAllowed(is_allowed); 67 requests_.Remove(bridge_id); 68} 69 70} // namespace content 71