| // Copyright 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 "content/browser/media/midi_dispatcher_host.h" |
| |
| #include "base/bind.h" |
| #include "content/browser/child_process_security_policy_impl.h" |
| #include "content/browser/frame_host/render_frame_host_impl.h" |
| #include "content/common/media/midi_messages.h" |
| #include "content/public/browser/browser_context.h" |
| #include "content/public/browser/browser_thread.h" |
| #include "content/public/browser/content_browser_client.h" |
| #include "content/public/browser/render_frame_host.h" |
| #include "content/public/browser/render_process_host.h" |
| #include "content/public/browser/web_contents.h" |
| #include "url/gurl.h" |
| |
| namespace content { |
| |
| MidiDispatcherHost::PendingPermission::PendingPermission( |
| int render_process_id, |
| int render_frame_id, |
| int bridge_id) |
| : render_process_id(render_process_id), |
| render_frame_id(render_frame_id), |
| bridge_id(bridge_id) { |
| } |
| |
| MidiDispatcherHost::PendingPermission::~PendingPermission() { |
| } |
| |
| MidiDispatcherHost::MidiDispatcherHost(WebContents* web_contents) |
| : WebContentsObserver(web_contents), |
| weak_factory_(this) { |
| } |
| |
| MidiDispatcherHost::~MidiDispatcherHost() { |
| } |
| |
| bool MidiDispatcherHost::OnMessageReceived(const IPC::Message& message, |
| RenderFrameHost* render_frame_host) { |
| bool handled = true; |
| IPC_BEGIN_MESSAGE_MAP_WITH_PARAM(MidiDispatcherHost, message, |
| render_frame_host) |
| IPC_MESSAGE_HANDLER(MidiHostMsg_RequestSysExPermission, |
| OnRequestSysExPermission) |
| IPC_MESSAGE_HANDLER(MidiHostMsg_CancelSysExPermissionRequest, |
| OnCancelSysExPermissionRequest) |
| IPC_MESSAGE_UNHANDLED(handled = false) |
| IPC_END_MESSAGE_MAP() |
| return handled; |
| } |
| |
| void MidiDispatcherHost::OnRequestSysExPermission( |
| RenderFrameHost* render_frame_host, |
| int bridge_id, |
| const GURL& origin, |
| bool user_gesture) { |
| int render_process_id = render_frame_host->GetProcess()->GetID(); |
| int render_frame_id = render_frame_host->GetRoutingID(); |
| |
| PendingPermission pending_permission( |
| render_process_id, render_frame_id, bridge_id); |
| pending_permissions_.push_back(pending_permission); |
| |
| GetContentClient()->browser()->RequestMidiSysExPermission( |
| web_contents(), |
| bridge_id, |
| origin, |
| user_gesture, |
| base::Bind(&MidiDispatcherHost::WasSysExPermissionGranted, |
| weak_factory_.GetWeakPtr(), |
| render_process_id, render_frame_id, bridge_id), |
| &pending_permissions_.back().cancel); |
| } |
| |
| void MidiDispatcherHost::OnCancelSysExPermissionRequest( |
| RenderFrameHost* render_frame_host, |
| int bridge_id, |
| const GURL& requesting_frame) { |
| int render_process_id = render_frame_host->GetProcess()->GetID(); |
| int render_frame_id = render_frame_host->GetRoutingID(); |
| |
| for (size_t i = 0; i < pending_permissions_.size(); ++i) { |
| if (pending_permissions_[i].render_process_id == render_process_id && |
| pending_permissions_[i].render_frame_id == render_frame_id && |
| pending_permissions_[i].bridge_id == bridge_id) { |
| if (!pending_permissions_[i].cancel.is_null()) |
| pending_permissions_[i].cancel.Run(); |
| pending_permissions_.erase(pending_permissions_.begin() + i); |
| return; |
| } |
| } |
| } |
| |
| void MidiDispatcherHost::WasSysExPermissionGranted(int render_process_id, |
| int render_frame_id, |
| int bridge_id, |
| bool is_allowed) { |
| for (size_t i = 0; i < pending_permissions_.size(); ++i) { |
| if (pending_permissions_[i].render_process_id == render_process_id && |
| pending_permissions_[i].render_frame_id == render_frame_id && |
| pending_permissions_[i].bridge_id == bridge_id) { |
| RenderFrameHost* render_frame_host = |
| RenderFrameHost::FromID(render_process_id, render_frame_id); |
| if (render_frame_host) { |
| render_frame_host->Send(new MidiMsg_SysExPermissionApproved( |
| render_frame_id, bridge_id, is_allowed)); |
| } |
| |
| if (is_allowed) { |
| ChildProcessSecurityPolicyImpl::GetInstance()-> |
| GrantSendMidiSysExMessage(render_process_id); |
| } |
| |
| pending_permissions_.erase(pending_permissions_.begin() + i); |
| return; |
| } |
| } |
| } |
| |
| } // namespace content |