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      1 // Copyright (c) 2011 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 "chrome/browser/ui/views/extensions/browser_action_drag_data.h"
      6 
      7 #include "base/logging.h"
      8 #include "base/pickle.h"
      9 #include "base/string_util.h"
     10 #include "chrome/browser/profiles/profile.h"
     11 
     12 const char* BrowserActionDragData::kClipboardFormatString =
     13     "chromium/x-browser-actions";
     14 
     15 BrowserActionDragData::BrowserActionDragData()
     16     : profile_id_(0), index_(-1) {
     17 }
     18 
     19 BrowserActionDragData::BrowserActionDragData(
     20     const std::string& id, int index)
     21     : profile_id_(0), id_(id), index_(index) {
     22 }
     23 
     24 bool BrowserActionDragData::IsFromProfile(Profile* profile) const {
     25   return (profile_id_ == profile->GetRuntimeId());
     26 }
     27 
     28 #if defined(TOOLKIT_VIEWS)
     29 void BrowserActionDragData::Write(
     30     Profile* profile, ui::OSExchangeData* data) const {
     31   DCHECK(data);
     32   Pickle data_pickle;
     33   WriteToPickle(profile, &data_pickle);
     34   data->SetPickledData(GetBrowserActionCustomFormat(), data_pickle);
     35 }
     36 
     37 bool BrowserActionDragData::Read(const ui::OSExchangeData& data) {
     38   if (!data.HasCustomFormat(GetBrowserActionCustomFormat()))
     39     return false;
     40 
     41   Pickle drag_data_pickle;
     42   if (!data.GetPickledData(GetBrowserActionCustomFormat(), &drag_data_pickle))
     43     return false;
     44 
     45   if (!ReadFromPickle(&drag_data_pickle))
     46     return false;
     47 
     48   return true;
     49 }
     50 
     51 // static
     52 ui::OSExchangeData::CustomFormat
     53     BrowserActionDragData::GetBrowserActionCustomFormat() {
     54   static ui::OSExchangeData::CustomFormat format;
     55   static bool format_valid = false;
     56 
     57   if (!format_valid) {
     58     format_valid = true;
     59     format = ui::OSExchangeData::RegisterCustomFormat(
     60         BrowserActionDragData::kClipboardFormatString);
     61   }
     62   return format;
     63 }
     64 #endif
     65 
     66 void BrowserActionDragData::WriteToPickle(
     67     Profile* profile, Pickle* pickle) const {
     68   ProfileId profile_id = profile->GetRuntimeId();
     69   pickle->WriteBytes(&profile_id, sizeof(profile_id));
     70   pickle->WriteString(id_);
     71   pickle->WriteSize(index_);
     72 }
     73 
     74 bool BrowserActionDragData::ReadFromPickle(Pickle* pickle) {
     75   void* data_iterator = NULL;
     76 
     77   const char* tmp;
     78   if (!pickle->ReadBytes(&data_iterator, &tmp, sizeof(profile_id_)))
     79     return false;
     80   memcpy(&profile_id_, tmp, sizeof(profile_id_));
     81 
     82   if (!pickle->ReadString(&data_iterator, &id_))
     83     return false;
     84 
     85   if (!pickle->ReadSize(&data_iterator, &index_))
     86     return false;
     87 
     88   return true;
     89 }
     90