Implement midi permissions on top of the new common permission classes

chrome/browser/media/midi_permission_context.cc

 // 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 "chrome/browser/media/midi_permission_context.h"
 
-#include "base/prefs/pref_service.h"
-#include "chrome/browser/content_settings/host_content_settings_map.h"
-#include "chrome/browser/content_settings/permission_queue_controller.h"
 #include "chrome/browser/content_settings/permission_request_id.h"
 #include "chrome/browser/content_settings/tab_specific_content_settings.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/browser/tab_contents/tab_util.h"
-#include "chrome/browser/ui/website_settings/permission_bubble_manager.h"
-#include "chrome/browser/ui/website_settings/permission_bubble_request.h"
-#include "chrome/common/pref_names.h"
-#include "content/public/browser/browser_thread.h"
-#include "content/public/browser/render_process_host.h"
-#include "content/public/browser/render_view_host.h"
-#include "content/public/browser/web_contents.h"
-#include "grit/generated_resources.h"
-#include "grit/theme_resources.h"
-#include "net/base/net_util.h"
-#include "ui/base/l10n/l10n_util.h"
-
-class MidiPermissionRequest : public PermissionBubbleRequest {
- public:
-  MidiPermissionRequest(
-      MidiPermissionContext* context,
-      const PermissionRequestID& id,
-      const GURL& requesting_frame,
-      bool user_gesture,
-      const std::string& display_languages,
-      const base::Callback<void(bool)>& callback);
-  virtual ~MidiPermissionRequest();
-
-  // PermissionBubbleDelegate:
-  virtual int GetIconID() const OVERRIDE;
-  virtual base::string16 GetMessageText() const OVERRIDE;
-  virtual base::string16 GetMessageTextFragment() const OVERRIDE;
-  virtual bool HasUserGesture() const OVERRIDE;
-  virtual GURL GetRequestingHostname() const OVERRIDE;
-  virtual void PermissionGranted() OVERRIDE;
-  virtual void PermissionDenied() OVERRIDE;
-  virtual void Cancelled() OVERRIDE;
-  virtual void RequestFinished() OVERRIDE;
-
- private:
-  MidiPermissionContext* context_;
-  const PermissionRequestID id_;
-  GURL requesting_frame_;
-  bool user_gesture_;
-  std::string display_languages_;
-  const base::Callback<void(bool)>& callback_;
-  bool is_finished_;
-
-  DISALLOW_COPY_AND_ASSIGN(MidiPermissionRequest);
-};
-
-MidiPermissionRequest::MidiPermissionRequest(
-    MidiPermissionContext* context,
-    const PermissionRequestID& id,
-    const GURL& requesting_frame,
-    bool user_gesture,
-    const std::string& display_languages,
-    const base::Callback<void(bool)>& callback)
-    : context_(context),
-      id_(id),
-      requesting_frame_(requesting_frame),
-      user_gesture_(user_gesture),
-      display_languages_(display_languages),
-      callback_(callback),
-      is_finished_(false) {}
-
-MidiPermissionRequest::~MidiPermissionRequest() {
-  DCHECK(is_finished_);
-}
-
-int MidiPermissionRequest::GetIconID() const {
-  return IDR_ALLOWED_MIDI_SYSEX;
-}
-
-base::string16 MidiPermissionRequest::GetMessageText() const {
-  return l10n_util::GetStringFUTF16(
-      IDS_MIDI_SYSEX_INFOBAR_QUESTION,
-      net::FormatUrl(requesting_frame_.GetOrigin(), display_languages_,
-                     net::kFormatUrlOmitUsernamePassword |
-                     net::kFormatUrlOmitTrailingSlashOnBareHostname,
-                     net::UnescapeRule::SPACES, NULL, NULL, NULL));
-}
-
-base::string16 MidiPermissionRequest::GetMessageTextFragment() const {
-  return l10n_util::GetStringUTF16(IDS_MIDI_SYSEX_PERMISSION_FRAGMENT);
-}
-
-bool MidiPermissionRequest::HasUserGesture() const {
-  return user_gesture_;
-}
-
-GURL MidiPermissionRequest::GetRequestingHostname() const {
-  return requesting_frame_;
-}
-
-void MidiPermissionRequest::PermissionGranted() {
-  context_->NotifyPermissionSet(id_, requesting_frame_, callback_, true);
-}
-
-void MidiPermissionRequest::PermissionDenied() {
-  context_->NotifyPermissionSet(id_, requesting_frame_, callback_, false);
-}
-
-void MidiPermissionRequest::Cancelled() {
-}
-
-void MidiPermissionRequest::RequestFinished() {
-  is_finished_ = true;
-  // Deletes 'this'.
-  context_->RequestFinished(this);
-}
+#include "url/gurl.h"
 
 MidiPermissionContext::MidiPermissionContext(Profile* profile)
-    : profile_(profile),
-      shutting_down_(false),
-      weak_factory_(this) {
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+    : PermissionContextBase(profile, CONTENT_SETTINGS_TYPE_MIDI_SYSEX) {
 }
 
 MidiPermissionContext::~MidiPermissionContext() {
-  DCHECK(!permission_queue_controller_);
-  DCHECK(pending_requests_.empty());
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
 }
 
-void MidiPermissionContext::Shutdown() {
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
-  permission_queue_controller_.reset();
-  shutting_down_ = true;
-}
 
-void MidiPermissionContext::RequestMidiSysExPermission(
-    content::WebContents* web_contents,
-    int bridge_id,
-    const GURL& requesting_frame,
-    bool user_gesture,
-    const base::Callback<void(bool)>& result_callback,
-    base::Closure* cancel_callback) {
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
-  DCHECK(!shutting_down_);
-
-  // TODO(toyoshim): Support Extension's manifest declared permission.
-  // See http://crbug.com/266338.
-
-  int render_process_id = web_contents->GetRenderProcessHost()->GetID();
-  int render_view_id = web_contents->GetRenderViewHost()->GetRoutingID();
-  if (cancel_callback) {
-    *cancel_callback = base::Bind(
-        &MidiPermissionContext::CancelMidiSysExPermissionRequest,
-        weak_factory_.GetWeakPtr(), render_process_id, render_view_id,
-        bridge_id);
-  }
-
-  const PermissionRequestID id(
-      render_process_id, render_view_id, bridge_id, GURL());
-
-  GURL embedder = web_contents->GetURL();
-  // |requesting_frame| can be empty and invalid when the frame is a local
-  // file. Here local files should be granted to show an infobar.
-  // Any user's action will not be stored to content settings data base.
-  if ((!requesting_frame.is_valid() && !requesting_frame.is_empty()) ||
-      !embedder.is_valid()) {
-    LOG(WARNING) << "Attempt to use MIDI sysex from an invalid URL: "
-                 << requesting_frame << "," << embedder
-                 << " (Web MIDI is not supported in popups)";
-    PermissionDecided(id, requesting_frame, embedder, result_callback, false);
-    return;
-  }
-
-  DecidePermission(web_contents, id, requesting_frame, embedder, user_gesture,
-                   result_callback);
-}
-
-void MidiPermissionContext::CancelMidiSysExPermissionRequest(
-    int render_process_id,
-    int render_view_id,
-    int bridge_id) {
-  CancelPendingInfobarRequest(
-      PermissionRequestID(
-          render_process_id, render_view_id, bridge_id, GURL()));
-}
-
-void MidiPermissionContext::DecidePermission(
-    content::WebContents* web_contents,
-    const PermissionRequestID& id,
-    const GURL& requesting_frame,
-    const GURL& embedder,
-    bool user_gesture,
-    const base::Callback<void(bool)>& callback) {
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
-
-  ContentSetting content_setting =
-      profile_->GetHostContentSettingsMap()->GetContentSetting(
-          requesting_frame,
-          embedder,
-          CONTENT_SETTINGS_TYPE_MIDI_SYSEX,
-          std::string());
-  switch (content_setting) {
-    case CONTENT_SETTING_BLOCK:
-      PermissionDecided(id, requesting_frame, embedder, callback, false);
-      break;
-    case CONTENT_SETTING_ALLOW:
-      PermissionDecided(id, requesting_frame, embedder, callback, true);
-      break;
-    default:
-      if (PermissionBubbleManager::Enabled()) {
-        PermissionBubbleManager* bubble_manager =
-            PermissionBubbleManager::FromWebContents(web_contents);
-        if (bubble_manager) {
-          scoped_ptr<MidiPermissionRequest> request_ptr(
-              new MidiPermissionRequest(
-                  this, id, requesting_frame, user_gesture,
-                  profile_->GetPrefs()->GetString(prefs::kAcceptLanguages),
-                  callback));
-          MidiPermissionRequest* request = request_ptr.get();
-          bool inserted = pending_requests_.add(
-              id.ToString(), request_ptr.Pass()).second;
-          DCHECK(inserted) << "Duplicate id " << id.ToString();
-          bubble_manager->AddRequest(request);
-        }
-        return;
-      }
-
-      // TODO(gbillock): Delete this and the infobar delegate when
-      // we're using only bubbles. crbug.com/337458
-      GetQueueController()->CreateInfoBarRequest(
-          id, requesting_frame, embedder, std::string(), base::Bind(
-              &MidiPermissionContext::NotifyPermissionSet,
-              base::Unretained(this), id, requesting_frame, callback));
-  }
-}
-
-void MidiPermissionContext::PermissionDecided(
-    const PermissionRequestID& id,
-    const GURL& requesting_frame,
-    const GURL& embedder,
-    const base::Callback<void(bool)>& callback,
-    bool allowed) {
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
-  NotifyPermissionSet(id, requesting_frame, callback, allowed);
-}
-
-void MidiPermissionContext::NotifyPermissionSet(
-    const PermissionRequestID& id,
-    const GURL& requesting_frame,
-    const base::Callback<void(bool)>& callback,
-    bool allowed) {
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
-
+void MidiPermissionContext::UpdateTabContext(const PermissionRequestID& id,
+                                             const GURL& requesting_frame,
+                                             bool allowed) {
   TabSpecificContentSettings* content_settings =
       TabSpecificContentSettings::Get(id.render_process_id(),
                                       id.render_view_id());
   if (content_settings) {
     if (allowed)
       content_settings->OnMidiSysExAccessed(requesting_frame);
     else
       content_settings->OnMidiSysExAccessBlocked(requesting_frame);
   }
-
-  callback.Run(allowed);
 }
-
-PermissionQueueController* MidiPermissionContext::GetQueueController() {
-  if (!permission_queue_controller_) {
-    permission_queue_controller_.reset(
-        new PermissionQueueController(profile_,
-                                      CONTENT_SETTINGS_TYPE_MIDI_SYSEX));
-  }
-  return permission_queue_controller_.get();
-}
-
-void MidiPermissionContext::RequestFinished(
-    MidiPermissionRequest* request) {
-  base::ScopedPtrHashMap<std::string, MidiPermissionRequest>::iterator it;
-  for (it = pending_requests_.begin(); it != pending_requests_.end(); it++) {
-    if (it->second == request) {
-      pending_requests_.take_and_erase(it);
-      return;
-    }
-  }
-
-  NOTREACHED() << "Missing request";
-}
-
-void MidiPermissionContext::CancelPendingInfobarRequest(
-    const PermissionRequestID& id) {
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
-  if (shutting_down_)
-    return;
-
-  if (PermissionBubbleManager::Enabled()) {
-    MidiPermissionRequest* cancelling = pending_requests_.get(id.ToString());
-    content::WebContents* web_contents = tab_util::GetWebContentsByID(
-        id.render_process_id(), id.render_view_id());
-    if (cancelling != NULL && web_contents != NULL &&
-        PermissionBubbleManager::FromWebContents(web_contents) != NULL) {
-      PermissionBubbleManager::FromWebContents(web_contents)->
-          CancelRequest(cancelling);
-    }
-    return;
-  }
-
-  GetQueueController()->CancelInfoBarRequest(id);
-}