tizen_src/ewk/efl_integration/wrt/wrt_widget_host.cc

   1 // Copyright (c) 2014,2015 Samsung Electronics. 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 "wrt_widget_host.h"
   6
   7 #include "base/lazy_instance.h"
   8 #include "common/render_messages_ewk.h"
   9 #include "content/public/browser/browser_message_filter.h"
  10 #include "content/public/browser/render_process_host.h"
  11 #include "content/public/browser/resource_request_info.h"
  12 #include "ipc/ipc_message_macros.h"
  13 #include "net/url_request/url_request.h"
  14 #include "tizen_webview/public/tw_wrt.h"
  15 #include "url/gurl.h"
  16
  17 namespace {
  18 // TODO(z.kostrzewa) I would prefer not make it a singleton, check out
  19 // if it can't be a member of ContentMainDelegateEfl (but keep the static
  20 // getter, maybe?).
  21 base::LazyInstance<scoped_ptr<WrtWidgetHost> > g_wrt_widget_host =
  22     LAZY_INSTANCE_INITIALIZER;
  23
  24 bool SendToAllRenderers(IPC::Message* message) {
  25   bool result = false;
  26   content::RenderProcessHost::iterator it =
  27       content::RenderProcessHost::AllHostsIterator();
  28   while (!it.IsAtEnd()) {
  29     if (it.GetCurrentValue()->Send(message))
  30       result = true;
  31     it.Advance();
  32   }
  33   return result;
  34 }
  35
  36 bool SendToRenderer(int renderer_id, IPC::Message* message) {
  37   return content::RenderProcessHost::FromID(renderer_id)->Send(message);
  38 }
  39 }
  40
  41 class WrtWidgetHostMessageFilter : public content::BrowserMessageFilter {
  42  public:
  43   explicit WrtWidgetHostMessageFilter(WrtWidgetHost* wrt_widget_host);
  44
  45  private:
  46   bool OnMessageReceived(const IPC::Message& message) override;
  47
  48   WrtWidgetHost* wrt_widget_host_;
  49 };
  50
  51 WrtWidgetHostMessageFilter::WrtWidgetHostMessageFilter(
  52     WrtWidgetHost* wrt_widget_host)
  53     : content::BrowserMessageFilter(EwkMsgStart),
  54       wrt_widget_host_(wrt_widget_host) {
  55 }
  56
  57 bool WrtWidgetHostMessageFilter::OnMessageReceived(const IPC::Message& message) {
  58   bool handled = true;
  59   IPC_BEGIN_MESSAGE_MAP(WrtWidgetHostMessageFilter, message)
  60     IPC_MESSAGE_FORWARD(WrtMsg_ParseUrlResponse, wrt_widget_host_, WrtWidgetHost::OnUrlRetrieved)
  61     IPC_MESSAGE_UNHANDLED(handled = false)
  62   IPC_END_MESSAGE_MAP()
  63   return handled;
  64 }
  65
  66 WrtWidgetHost* WrtWidgetHost::Get() {
  67   // TODO(z.kostrzewa) LazyInstance is thread-safe but creating
  68   // WrtWidgetHost is not - make it thread-safe.
  69   if (!g_wrt_widget_host.Get().get())
  70     g_wrt_widget_host.Get().reset(new WrtWidgetHost);
  71   return g_wrt_widget_host.Get().get();
  72 }
  73
  74 WrtWidgetHost::WrtWidgetHost()
  75     : message_filter_(new WrtWidgetHostMessageFilter(this)),
  76       in_wrt_(false),
  77       widget_id_(0) {
  78 }
  79
  80 void WrtWidgetHost::GetUrlForRequest(
  81     net::URLRequest* request,
  82     base::Callback<void(const GURL&)> callback) {
  83   // TODO(z.kostrzewa) Check on which thread(s) callbacks_ is touched
  84   // and provide synchronization if required (either via a lock or
  85   // by assuring that it is referenced only on one thread)
  86   int callback_id = callback_id_generator_.GetNext();
  87   callbacks_[callback_id] = callback;
  88
  89   int renderer_id, frame_id;
  90   if (content::ResourceRequestInfo::GetRenderFrameForRequest(request, &renderer_id,
  91                                                              &frame_id))
  92     if (SendToRenderer(renderer_id, new WrtMsg_ParseUrl(callback_id, request->url())))
  93       return;
  94
  95   callbacks_.erase(callback_id);
  96   callback.Run(GURL());
  97 }
  98
  99 void WrtWidgetHost::SetWidgetInfo(int widget_id,
 100                                   double scale,
 101                                   const std::string& theme,
 102                                   const std::string& encoded_bundle) {
 103   // TODO shouldn't it be confirmed by WRT that this is really a launch
 104   // of the widget identified by widget_id?
 105   if (SendToAllRenderers(
 106           new WrtMsg_SetWidgetInfo(widget_id, scale, theme, encoded_bundle))) {
 107     // TODO(z.kostrzewa) This should be determined (somehow) on application
 108     // startup. Can it be done via Application Framework/Package Manager?
 109     in_wrt_ = true;
 110     widget_id_ = widget_id;
 111   }
 112 }
 113
 114 void WrtWidgetHost::SendWrtMessage(
 115     const tizen_webview::WrtIpcMessageData& message) {
 116   SendToAllRenderers(new WrtMsg_SendWrtMessage(message));
 117 }
 118
 119 bool WrtWidgetHost::InWrt() const {
 120   return in_wrt_;
 121 }
 122
 123 int WrtWidgetHost::WidgetId() const {
 124   return widget_id_;
 125 }
 126
 127 void WrtWidgetHost::OnUrlRetrieved(int callback_id, const GURL& url) {
 128   callbacks_type::iterator it = callbacks_.find(callback_id);
 129   if (callbacks_.end() == it)
 130     return;
 131
 132   callbacks_type::mapped_type callback = it->second;
 133   callbacks_.erase(callback_id);
 134   callback.Run(url);
 135 }
 136