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 "ipc/ipc_message_macros.h"
  12 #include "ipc_message_start_ewk.h"
  13 #include "net/url_request/url_request.h"
  14 #include "url/gurl.h"
  15
  16 namespace {
  17 // TODO(z.kostrzewa) I would prefer not make it a singleton, check out
  18 // if it can't be a member of ContentMainDelegateEfl (but keep the static
  19 // getter, maybe?).
  20 base::LazyInstance<std::unique_ptr<WrtWidgetHost> > g_wrt_widget_host =
  21     LAZY_INSTANCE_INITIALIZER;
  22
  23 bool SendToAllRenderers(IPC::Message* message) {
  24   bool result = false;
  25   content::RenderProcessHost::iterator it =
  26       content::RenderProcessHost::AllHostsIterator();
  27   while (!it.IsAtEnd()) {
  28     if (it.GetCurrentValue()->Send(message))
  29       result = true;
  30     it.Advance();
  31   }
  32   return result;
  33 }
  34
  35 bool SendToRenderer(int renderer_id, IPC::Message* message) {
  36   content::RenderProcessHost* host =
  37       content::RenderProcessHost::FromID(renderer_id);
  38   if (!host)
  39     return false;
  40
  41   return host->Send(message);
  42 }
  43 }
  44
  45 class WrtWidgetHostMessageFilter : public content::BrowserMessageFilter {
  46  public:
  47   explicit WrtWidgetHostMessageFilter(WrtWidgetHost* wrt_widget_host);
  48
  49  private:
  50   bool OnMessageReceived(const IPC::Message& message) override;
  51
  52   WrtWidgetHost* wrt_widget_host_;
  53 };
  54
  55 WrtWidgetHostMessageFilter::WrtWidgetHostMessageFilter(
  56     WrtWidgetHost* wrt_widget_host)
  57     : content::BrowserMessageFilter(EwkMsgStart),
  58       wrt_widget_host_(wrt_widget_host) {
  59 }
  60
  61 bool WrtWidgetHostMessageFilter::OnMessageReceived(const IPC::Message& message) {
  62   bool handled = true;
  63   IPC_BEGIN_MESSAGE_MAP(WrtWidgetHostMessageFilter, message)
  64     IPC_MESSAGE_FORWARD(WrtMsg_ParseUrlResponse, wrt_widget_host_, WrtWidgetHost::OnUrlRetrieved)
  65     IPC_MESSAGE_UNHANDLED(handled = false)
  66   IPC_END_MESSAGE_MAP()
  67   return handled;
  68 }
  69
  70 WrtWidgetHost* WrtWidgetHost::Get() {
  71   // TODO(z.kostrzewa) LazyInstance is thread-safe but creating
  72   // WrtWidgetHost is not - make it thread-safe.
  73 #if !defined(EWK_BRINGUP)  // FIXME: m67 bringup
  74   // FIXME: ‘New’ is not a member of
  75   // ‘base::internal::ErrorMustSelectLazyOrDestructorAtExitForLazyInstance<std::unique_ptr<WrtWidgetHost>
  76   // >’
  77   if (!g_wrt_widget_host.Get().get())
  78     g_wrt_widget_host.Get().reset(new WrtWidgetHost);
  79   return g_wrt_widget_host.Get().get();
  80 #endif
  81 }
  82
  83 WrtWidgetHost::WrtWidgetHost()
  84     : message_filter_(new WrtWidgetHostMessageFilter(this)) {
  85 }
  86
  87 void WrtWidgetHost::GetUrlForRequest(
  88     net::URLRequest* request,
  89     base::Callback<void(const GURL&)> callback) {
  90   // TODO(z.kostrzewa) Check on which thread(s) callbacks_ is touched
  91   // and provide synchronization if required (either via a lock or
  92   // by assuring that it is referenced only on one thread)
  93   int callback_id = callback_id_generator_.GetNext();
  94   callbacks_[callback_id] = callback;
  95
  96 #if !defined(EWK_BRINGUP)  // FIXME: m85 bringup
  97   int renderer_id, frame_id;
  98   if (content::ResourceRequestInfo::GetRenderFrameForRequest(request, &renderer_id,
  99                                                              &frame_id))
 100     if (SendToRenderer(renderer_id, new WrtMsg_ParseUrl(callback_id, request->url())))
 101       return;
 102 #endif
 103
 104   callbacks_.erase(callback_id);
 105   callback.Run(GURL());
 106 }
 107
 108 void WrtWidgetHost::SendWrtMessage(
 109     const Ewk_Wrt_Message_Data& message) {
 110   SendToAllRenderers(new WrtMsg_SendWrtMessage(message));
 111 }
 112
 113 // It's only used by the wrt_file_protocol_handler which is not going to be used in the future
 114 // Candidate for deletion.
 115 bool WrtWidgetHost::InWrt() const {
 116   return false;
 117 }
 118
 119 // It's only used by the wrt_file_protocol_handler which is not going to be used in the future
 120 // Candidate for deletion.
 121 std::string WrtWidgetHost::TizenAppId() const {
 122   return std::string();
 123 }
 124
 125 void WrtWidgetHost::OnUrlRetrieved(int callback_id, const GURL& url) {
 126   callbacks_type::iterator it = callbacks_.find(callback_id);
 127   if (callbacks_.end() == it)
 128     return;
 129
 130   callbacks_type::mapped_type callback = it->second;
 131   callbacks_.erase(callback_id);
 132   callback.Run(url);
 133 }
 134