src/xwalk/runtime/renderer/tizen/xwalk_render_view_ext_tizen.cc

   1 // Copyright (c) 2012 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 #include "xwalk/runtime/renderer/tizen/xwalk_render_view_ext_tizen.h"
   6
   7 #include <string>
   8
   9 #include "base/bind.h"
  10 #include "base/strings/utf_string_conversions.h"
  11 #include "content/public/renderer/render_frame.h"
  12 #include "content/public/renderer/render_view.h"
  13 #include "third_party/WebKit/public/web/WebDocument.h"
  14 #include "third_party/WebKit/public/web/WebLocalFrame.h"
  15 #include "third_party/WebKit/public/web/WebScriptSource.h"
  16 #include "third_party/WebKit/public/web/WebView.h"
  17 #include "ui/events/keycodes/keyboard_codes_posix.h"
  18 #include "xwalk/runtime/common/xwalk_common_messages.h"
  19
  20 namespace {
  21 std::string GenerateEventJs(const std::string& name) {
  22   std::string result;
  23   std::string defineJs =
  24     "var event = new Event('tizenhwkey');"
  25     "function defineProps(val) {"
  26     "  Object.defineProperty(event, 'keyName', {"
  27     "    enumerable: false,"
  28     "    configurable: false,"
  29     "    writable: false,"
  30     "    value: val"
  31     "  });"
  32     "}";
  33   std::string nameJs = "defineProps('" + name + "');";
  34   std::string dispatchJs = "document.dispatchEvent(event);";
  35   result += defineJs;
  36   result += nameJs;
  37   result += dispatchJs;
  38
  39   return result;
  40 }
  41 }  // namespace
  42
  43 namespace xwalk {
  44
  45 XWalkRenderViewExtTizen::XWalkRenderViewExtTizen(
  46     content::RenderView* render_view)
  47     : content::RenderViewObserver(render_view) {
  48   render_view_ = render_view;
  49   DCHECK(render_view_);
  50 }
  51
  52 XWalkRenderViewExtTizen::~XWalkRenderViewExtTizen() {
  53 }
  54
  55 // static
  56 void XWalkRenderViewExtTizen::RenderViewCreated(
  57     content::RenderView* render_view) {
  58   new XWalkRenderViewExtTizen(render_view);  // |render_view| takes ownership.
  59 }
  60
  61 bool XWalkRenderViewExtTizen::OnMessageReceived(const IPC::Message& message) {
  62   bool handled = true;
  63   IPC_BEGIN_MESSAGE_MAP(XWalkRenderViewExtTizen, message)
  64     IPC_MESSAGE_HANDLER(ViewMsg_HWKeyPressed,
  65                         OnHWKeyPressed)
  66     IPC_MESSAGE_UNHANDLED(handled = false)
  67   IPC_END_MESSAGE_MAP()
  68   return handled;
  69 }
  70
  71 void XWalkRenderViewExtTizen::OnHWKeyPressed(int keycode) {
  72   std::string event_name;
  73   if (keycode == ui::VKEY_BACK) {
  74     event_name = "back";
  75   } else if (keycode == ui::VKEY_HOME) {
  76     event_name = "menu";
  77   } else {
  78     LOG(INFO) << "Unknown input key code, only support 'back' & 'menu'"
  79                   "at present.";
  80     return;
  81   }
  82
  83   content::RenderFrame* render_frame = render_view_->GetMainRenderFrame();
  84   blink::WebLocalFrame* web_frame = render_frame->GetWebFrame();
  85   blink::WebScriptSource source =
  86       blink::WebScriptSource(base::ASCIIToUTF16(GenerateEventJs(event_name)));
  87   web_frame->executeScript(source);
  88 }
  89
  90 }  // namespace xwalk