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 "ipc_message_start_ewk.h"
  14 #include "net/url_request/url_request.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<std::unique_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   content::RenderProcessHost* host =
  38       content::RenderProcessHost::FromID(renderer_id);
  39   if (!host)
  40     return false;
  41
  42   return host->Send(message);
  43 }
  44 }
  45
  46 class WrtWidgetHostMessageFilter : public content::BrowserMessageFilter {
  47  public:
  48   explicit WrtWidgetHostMessageFilter(WrtWidgetHost* wrt_widget_host);
  49
  50  private:
  51   bool OnMessageReceived(const IPC::Message& message) override;
  52
  53   WrtWidgetHost* wrt_widget_host_;
  54 };
  55
  56 WrtWidgetHostMessageFilter::WrtWidgetHostMessageFilter(
  57     WrtWidgetHost* wrt_widget_host)
  58     : content::BrowserMessageFilter(EwkMsgStart),
  59       wrt_widget_host_(wrt_widget_host) {
  60 }
  61
  62 bool WrtWidgetHostMessageFilter::OnMessageReceived(const IPC::Message& message) {
  63   bool handled = true;
  64   IPC_BEGIN_MESSAGE_MAP(WrtWidgetHostMessageFilter, message)
  65     IPC_MESSAGE_FORWARD(WrtMsg_ParseUrlResponse, wrt_widget_host_, WrtWidgetHost::OnUrlRetrieved)
  66     IPC_MESSAGE_UNHANDLED(handled = false)
  67   IPC_END_MESSAGE_MAP()
  68   return handled;
  69 }
  70
  71 WrtWidgetHost* WrtWidgetHost::Get() {
  72   // TODO(z.kostrzewa) LazyInstance is thread-safe but creating
  73   // WrtWidgetHost is not - make it thread-safe.
  74 #if !defined(EWK_BRINGUP)  // FIXME: m67 bringup
  75   // FIXME: ‘New’ is not a member of
  76   // ‘base::internal::ErrorMustSelectLazyOrDestructorAtExitForLazyInstance<std::unique_ptr<WrtWidgetHost>
  77   // >’
  78   if (!g_wrt_widget_host.Get().get())
  79     g_wrt_widget_host.Get().reset(new WrtWidgetHost);
  80   return g_wrt_widget_host.Get().get();
  81 #endif
  82 }
  83
  84 WrtWidgetHost::WrtWidgetHost()
  85     : message_filter_(new WrtWidgetHostMessageFilter(this)) {
  86 }
  87
  88 void WrtWidgetHost::GetUrlForRequest(
  89     net::URLRequest* request,
  90     base::Callback<void(const GURL&)> callback) {
  91   // TODO(z.kostrzewa) Check on which thread(s) callbacks_ is touched
  92   // and provide synchronization if required (either via a lock or
  93   // by assuring that it is referenced only on one thread)
  94   int callback_id = callback_id_generator_.GetNext();
  95   callbacks_[callback_id] = callback;
  96
  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
 103   callbacks_.erase(callback_id);
 104   callback.Run(GURL());
 105 }
 106
 107 void WrtWidgetHost::SendWrtMessage(
 108     const Ewk_Wrt_Message_Data& message) {
 109   SendToAllRenderers(new WrtMsg_SendWrtMessage(message));
 110 }
 111
 112 // It's only used by the wrt_file_protocol_handler which is not going to be used in the future
 113 // Candidate for deletion.
 114 bool WrtWidgetHost::InWrt() const {
 115   return false;
 116 }
 117
 118 // It's only used by the wrt_file_protocol_handler which is not going to be used in the future
 119 // Candidate for deletion.
 120 std::string WrtWidgetHost::TizenAppId() const {
 121   return std::string();
 122 }
 123
 124 void WrtWidgetHost::OnUrlRetrieved(int callback_id, const GURL& url) {
 125   callbacks_type::iterator it = callbacks_.find(callback_id);
 126   if (callbacks_.end() == it)
 127     return;
 128
 129   callbacks_type::mapped_type callback = it->second;
 130   callbacks_.erase(callback_id);
 131   callback.Run(url);
 132 }
 133