src/runtime/web_view.cc

   1 // Copyright 2015 Samsung Electronics Co, Ltd. 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 "runtime/web_view.h"
   6
   7 #include <ewk_chromium.h>
   8 #include <functional>
   9
  10 #include "runtime/native_window.h"
  11
  12 namespace wrt {
  13
  14 namespace {
  15
  16 // TODO(sngn.lee) : It should be declare in common header
  17 const char* kKeyNameBack = "back";
  18 const char* kKeyNameMenu = "menu";
  19
  20 static int ToWebRotation(int r) {
  21   switch (r) {
  22     case 0:
  23     case 180:
  24       return r;
  25     case 90:
  26       return -90;
  27     case 270:
  28       return 90;
  29   }
  30   return r;
  31 }
  32
  33 }  // namespace
  34
  35
  36 WebView::WebView(NativeWindow* window, Ewk_Context* context)
  37     : window_(window),
  38       context_(context),
  39       ewk_view_(NULL),
  40       listener_(NULL),
  41       always_run_(false) {
  42   Initialize();
  43 }
  44
  45 WebView::~WebView() {
  46   window_->RemoveRotationHandler(rotation_handler_id_);
  47 }
  48
  49 void WebView::LoadUrl(const std::string& url) {
  50   ewk_view_url_set(ewk_view_, url.c_str());
  51 }
  52
  53 void WebView::Suspend() {
  54   // change the visibility
  55   ewk_view_visibility_set(ewk_view_, EINA_FALSE);
  56
  57   if (!always_run_) {
  58     // suspend webview
  59     ewk_view_suspend(ewk_view_);
  60   }
  61 }
  62
  63 void WebView::Resume() {
  64   if (!always_run_) {
  65     // resume webview
  66     ewk_view_resume(ewk_view_);
  67   }
  68   // change the visiblity
  69   ewk_view_visibility_set(ewk_view_, EINA_TRUE);
  70 }
  71
  72 void WebView::Reload() {
  73   ewk_view_reload(ewk_view_);
  74 }
  75
  76 void WebView::AlwaysRun(bool run) {
  77   always_run_ = run;
  78 }
  79
  80 bool WebView::EvalJavascript(const std::string& script) {
  81   return ewk_view_script_execute(ewk_view_, script.c_str(), NULL, NULL);
  82 }
  83
  84 void WebView::Initialize() {
  85   ewk_view_ = ewk_view_add_with_context(window_->evas_object(), context_);
  86
  87   // TODO(sngn.lee): To be implemented - orientation lock
  88
  89
  90   auto key_callback = [](void* user_data,
  91                          Evas_Object* /*obj*/,
  92                          void* event_info) -> void {
  93     WebView* self = static_cast<WebView*>(user_data);
  94     Ea_Callback_Type key = static_cast<Ea_Callback_Type>(
  95                               reinterpret_cast<int>(event_info));
  96     self->OnKeyEvent(key);
  97   };
  98   ea_object_event_callback_add(ewk_view_,
  99                                EA_CALLBACK_BACK,
 100                                key_callback,
 101                                this);
 102   ea_object_event_callback_add(ewk_view_,
 103                                EA_CALLBACK_MORE,
 104                                key_callback,
 105                                this);
 106
 107
 108   // load statred callback
 109   auto loadstart_callback = [](void* user_data,
 110                                Evas_Object* /*obj*/,
 111                                void*) {
 112     WebView* self = static_cast<WebView*>(user_data);
 113     if (self->listener_)
 114       self->listener_->OnLoadStart(self);
 115   };
 116   evas_object_smart_callback_add(ewk_view_,
 117                                  "load,started",
 118                                  loadstart_callback,
 119                                  this);
 120   // load finished callback
 121   auto loadfinished_callback = [](void* user_data,
 122                                   Evas_Object*,
 123                                   void*) {
 124     WebView* self = static_cast<WebView*>(user_data);
 125     if (self->listener_)
 126       self->listener_->OnLoadFinished(self);
 127   };
 128   evas_object_smart_callback_add(ewk_view_,
 129                                  "load,finished",
 130                                  loadfinished_callback,
 131                                  this);
 132
 133   // load progress callback
 134   auto loadprogress_callback = [](void* user_data,
 135                                   Evas_Object*,
 136                                   void* event_info) {
 137     WebView* self = static_cast<WebView*>(user_data);
 138     double* progress = static_cast<double*>(event_info);
 139     if (self->listener_)
 140       self->listener_->OnLoadProgress(self, *progress);
 141   };
 142   evas_object_smart_callback_add(ewk_view_,
 143                                  "load,progress",
 144                                  loadprogress_callback,
 145                                  this);
 146   // rendered callback
 147   auto rendered_callback = [](void* user_data,
 148                               Evas_Object*,
 149                               void*) {
 150     WebView* self = static_cast<WebView*>(user_data);
 151     if (self->listener_)
 152       self->listener_->OnRendered(self);
 153   };
 154   evas_object_smart_callback_add(ewk_view_,
 155                                  "frame,rendered",
 156                                  rendered_callback,
 157                                  this);
 158
 159   // "policy,navigation,decide"
 160   auto navigation_decide_callback = [](void* user_data,
 161                                        Evas_Object*,
 162                                        void* event_info) {
 163     WebView* self = static_cast<WebView*>(user_data);
 164     Ewk_Policy_Decision* policy =
 165             static_cast<Ewk_Policy_Decision*>(event_info);
 166     const char* url = ewk_policy_decision_url_get(policy);
 167
 168     if (self->listener_) {
 169       if (self->listener_->OnDidNavigation(self, url))
 170         ewk_policy_decision_use(policy);
 171       else
 172         ewk_policy_decision_ignore(policy);
 173     } else {
 174       ewk_policy_decision_use(policy);
 175     }
 176   };
 177   evas_object_smart_callback_add(ewk_view_,
 178                                  "policy,navigation,decide",
 179                                  navigation_decide_callback,
 180                                  this);
 181
 182   // policy,newwindow,decide
 183   auto newwindow_decide_callback = [](void* user_data,
 184                                       Evas_Object*,
 185                                       void* event_info) {
 186     WebView* self = static_cast<WebView*>(user_data);
 187     Ewk_Policy_Decision* policy =
 188             static_cast<Ewk_Policy_Decision*>(event_info);
 189
 190     const char* url = ewk_policy_decision_url_get(policy);
 191
 192     if (self->listener_) {
 193       if (self->listener_->OnDidNavigation(self, url) &&
 194          self->listener_->OnDidOpenWindow(self, url)) {
 195          ewk_policy_decision_use(policy);
 196       } else {
 197         ewk_policy_decision_ignore(policy);
 198       }
 199     } else {
 200       ewk_policy_decision_use(policy);
 201     }
 202   };
 203   evas_object_smart_callback_add(ewk_view_,
 204                                  "policy,newwindow,decide",
 205                                  newwindow_decide_callback,
 206                                  this);
 207
 208   ewk_view_orientation_send(ewk_view_, ToWebRotation(window_->rotation()));
 209   rotation_handler_id_ = window_->AddRotationHandler(
 210                                   std::bind(&WebView::OnRotation,
 211                                   this,
 212                                   std::placeholders::_1));
 213   // Show webview
 214   evas_object_show(ewk_view_);
 215 }
 216
 217 std::string WebView::GetUrl() {
 218   return std::string(ewk_view_url_get(ewk_view_));
 219 }
 220
 221 Evas_Object* WebView::evas_object() const {
 222   return ewk_view_;
 223 }
 224
 225 void WebView::OnRotation(int degree) {
 226   ewk_view_orientation_send(ewk_view_, ToWebRotation(degree));
 227 }
 228
 229 void WebView::OnKeyEvent(Ea_Callback_Type key_type) {
 230   std::string keyname;
 231   if (key_type == EA_CALLBACK_BACK) {
 232     if (EINA_TRUE == ewk_view_text_selection_clear(ewk_view_)) {
 233       return;
 234     }
 235     keyname = kKeyNameBack;
 236   } else if (key_type == EA_CALLBACK_MORE) {
 237     keyname = kKeyNameMenu;
 238   } else {
 239     return;
 240   }
 241
 242   if (listener_)
 243     listener_->OnHardwareKey(this, keyname);
 244 }
 245
 246
 247 }  // namespace wrt
 248