chrome/browser/ui/webui/media_router/media_router_webui_message_handler.h

   1 // Copyright 2015 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 #ifndef CHROME_BROWSER_UI_WEBUI_MEDIA_ROUTER_MEDIA_ROUTER_WEBUI_MESSAGE_HANDLER_H_
   6 #define CHROME_BROWSER_UI_WEBUI_MEDIA_ROUTER_MEDIA_ROUTER_WEBUI_MESSAGE_HANDLER_H_
   7
   8 #include <vector>
   9
  10 #include "base/macros.h"
  11 #include "chrome/browser/media/router/issue.h"
  12 #include "chrome/browser/ui/webui/media_router/media_cast_mode.h"
  13 #include "chrome/browser/ui/webui/media_router/media_sink_with_cast_modes.h"
  14 #include "content/public/browser/web_ui_message_handler.h"
  15
  16 namespace base {
  17 class DictionaryValue;
  18 class ListValue;
  19 }  // namespace base
  20
  21 namespace media_router {
  22
  23 class Issue;
  24 class MediaRoute;
  25 class MediaRouterUI;
  26
  27 // The handler for Javascript messages related to the media router dialog.
  28 class MediaRouterWebUIMessageHandler : public content::WebUIMessageHandler {
  29  public:
  30   explicit MediaRouterWebUIMessageHandler(MediaRouterUI* media_router_ui);
  31   ~MediaRouterWebUIMessageHandler() override;
  32
  33   // Methods to update the status displayed by the dialog.
  34   void UpdateSinks(const std::vector<MediaSinkWithCastModes>& sinks);
  35   void UpdateRoutes(const std::vector<MediaRoute>& routes);
  36   void UpdateCastModes(const CastModeSet& cast_modes,
  37                        const std::string& source_host);
  38   void OnCreateRouteResponseReceived(const MediaSink::Id& sink_id,
  39                                      const MediaRoute* route);
  40
  41   // Does not take ownership of |issue|. Note that |issue| can be nullptr, when
  42   // there are no more issues.
  43   void UpdateIssue(const Issue* issue);
  44
  45  private:
  46   // WebUIMessageHandler implementation.
  47   void RegisterMessages() override;
  48
  49   // Handlers for JavaScript messages.
  50   // In all cases, |args| consists of a single DictionaryValue containing the
  51   // actual parameters.
  52   // See media_router_ui_interface.js for documentation on parameters.
  53   void OnRequestInitialData(const base::ListValue* args);
  54   void OnCreateRoute(const base::ListValue* args);
  55   void OnActOnIssue(const base::ListValue* args);
  56   void OnCloseRoute(const base::ListValue* args);
  57   void OnCloseDialog(const base::ListValue* args);
  58
  59   // Performs an action for an Issue of |type|.
  60   // |args| contains additional parameter that varies based on |type|.
  61   // Returns |true| if the action was successfully performed.
  62   bool ActOnIssueType(const IssueAction::Type& type,
  63                       const base::DictionaryValue* args);
  64
  65   // Keeps track of whether a command to close the dialog has been issued.
  66   bool dialog_closing_;
  67
  68   MediaRouterUI* media_router_ui_;
  69
  70   DISALLOW_COPY_AND_ASSIGN(MediaRouterWebUIMessageHandler);
  71 };
  72
  73 }  // namespace media_router
  74
  75 #endif  // CHROME_BROWSER_UI_WEBUI_MEDIA_ROUTER_MEDIA_ROUTER_WEBUI_MESSAGE_HANDLER_H_