1 // Copyright 2014 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 "content/common/gamepad_param_traits.h" 6 7 #include "base/pickle.h" 8 #include "base/strings/string16.h" 9 #include "base/strings/utf_string_conversions.h" 10 #include "ipc/ipc_message_utils.h" 11 #include "third_party/WebKit/public/platform/WebGamepad.h" 12 13 using blink::WebGamepad; 14 15 namespace { 16 17 void LogWebUCharString( 18 const blink::WebUChar web_string[], 19 const size_t array_size, 20 std::string* log) { 21 base::string16 utf16; 22 utf16.reserve(array_size); 23 for (size_t i = 0; i < array_size && web_string[i]; ++i) { 24 utf16[i] = web_string[i]; 25 } 26 log->append(base::UTF16ToUTF8(utf16)); 27 } 28 29 } 30 31 namespace IPC { 32 33 void ParamTraits<WebGamepad>::Write( 34 Message* m, 35 const WebGamepad& p) { 36 m->WriteData(reinterpret_cast<const char*>(&p), sizeof(WebGamepad)); 37 } 38 39 bool ParamTraits<WebGamepad>::Read( 40 const Message* m, 41 PickleIterator* iter, 42 WebGamepad* p) { 43 int length; 44 const char* data; 45 if (!m->ReadData(iter, &data, &length) || length != sizeof(WebGamepad)) 46 return false; 47 memcpy(p, data, sizeof(WebGamepad)); 48 49 return true; 50 } 51 52 void ParamTraits<WebGamepad>::Log( 53 const WebGamepad& p, 54 std::string* l) { 55 l->append("WebGamepad("); 56 LogParam(p.connected, l); 57 LogWebUCharString(p.id, WebGamepad::idLengthCap, l); 58 l->append(","); 59 LogWebUCharString(p.mapping, WebGamepad::mappingLengthCap, l); 60 l->append(","); 61 LogParam(p.timestamp, l); 62 l->append(","); 63 LogParam(p.axesLength, l); 64 l->append(", ["); 65 for (size_t i = 0; i < arraysize(p.axes); ++i) { 66 l->append(base::StringPrintf("%f%s", p.axes[i], 67 i < (arraysize(p.axes) - 1) ? ", " : "], ")); 68 } 69 LogParam(p.buttonsLength, l); 70 l->append(", ["); 71 for (size_t i = 0; i < arraysize(p.buttons); ++i) { 72 l->append(base::StringPrintf("(%u, %f)%s", 73 p.buttons[i].pressed, p.buttons[i].value, 74 i < (arraysize(p.buttons) - 1) ? ", " : "], ")); 75 } 76 l->append(")"); 77 } 78 79 } // namespace IPC 80
