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// 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
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