/xbmc/dialogs/GUIDialogTextViewer.cpp

  1/*
  2 *  Copyright (C) 2005-2018 Team Kodi
  3 *  This file is part of Kodi - https://kodi.tv
  4 *
  5 *  SPDX-License-Identifier: GPL-2.0-or-later
  6 *  See LICENSES/README.md for more information.
  7 */
  8
  9#include "GUIDialogTextViewer.h"
 10
 11#include "GUIUserMessages.h"
 12#include "ServiceBroker.h"
 13#include "filesystem/File.h"
 14#include "guilib/GUIComponent.h"
 15#include "guilib/GUIWindowManager.h"
 16#include "input/actions/Action.h"
 17#include "input/actions/ActionIDs.h"
 18#include "utils/URIUtils.h"
 19#include "utils/log.h"
 20
 21using namespace XFILE;
 22
 23#define CONTROL_HEADING  1
 24#define CONTROL_TEXTAREA 5
 25
 26CGUIDialogTextViewer::CGUIDialogTextViewer(void)
 27    : CGUIDialog(WINDOW_DIALOG_TEXT_VIEWER, "DialogTextViewer.xml")
 28{
 29  m_loadType = KEEP_IN_MEMORY;
 30}
 31
 32CGUIDialogTextViewer::~CGUIDialogTextViewer(void) = default;
 33
 34bool CGUIDialogTextViewer::OnAction(const CAction &action)
 35{
 36  if (action.GetID() == ACTION_TOGGLE_FONT)
 37  {
 38    UseMonoFont(!m_mono);
 39    return true;
 40  }
 41
 42  return CGUIDialog::OnAction(action);
 43}
 44
 45bool CGUIDialogTextViewer::OnMessage(CGUIMessage& message)
 46{
 47  switch ( message.GetMessage() )
 48  {
 49  case GUI_MSG_WINDOW_INIT:
 50    {
 51      CGUIDialog::OnMessage(message);
 52      SetHeading();
 53      SetText();
 54      UseMonoFont(m_mono);
 55      return true;
 56    }
 57    break;
 58  case GUI_MSG_NOTIFY_ALL:
 59    {
 60      if (message.GetParam1() == GUI_MSG_UPDATE)
 61      {
 62        SetText();
 63        SetHeading();
 64        return true;
 65      }
 66    }
 67    break;
 68  default:
 69    break;
 70  }
 71  return CGUIDialog::OnMessage(message);
 72}
 73
 74void CGUIDialogTextViewer::SetText()
 75{
 76  CGUIMessage msg(GUI_MSG_LABEL_SET, GetID(), CONTROL_TEXTAREA);
 77  msg.SetLabel(m_strText);
 78  OnMessage(msg);
 79}
 80
 81void CGUIDialogTextViewer::SetHeading()
 82{
 83  CGUIMessage msg(GUI_MSG_LABEL_SET, GetID(), CONTROL_HEADING);
 84  msg.SetLabel(m_strHeading);
 85  OnMessage(msg);
 86}
 87
 88void CGUIDialogTextViewer::UseMonoFont(bool use)
 89{
 90  m_mono = use;
 91  CGUIMessage msg(GUI_MSG_SET_TYPE, GetID(), CONTROL_TEXTAREA, use ? 1 : 0);
 92  OnMessage(msg);
 93}
 94
 95void CGUIDialogTextViewer::OnDeinitWindow(int nextWindowID)
 96{
 97  CGUIDialog::OnDeinitWindow(nextWindowID);
 98
 99  // reset text area
100  CGUIMessage msgReset(GUI_MSG_LABEL_RESET, GetID(), CONTROL_TEXTAREA);
101  OnMessage(msgReset);
102
103  // reset heading
104  SET_CONTROL_LABEL(CONTROL_HEADING, "");
105}
106
107void CGUIDialogTextViewer::ShowForFile(const std::string& path, bool useMonoFont)
108{
109  CFile file;
110  if (file.Open(path))
111  {
112    std::string data;
113    try
114    {
115      data.resize(file.GetLength()+1);
116      file.Read(&data[0], file.GetLength());
117      CGUIDialogTextViewer* pDialog = CServiceBroker::GetGUI()->GetWindowManager().GetWindow<CGUIDialogTextViewer>(WINDOW_DIALOG_TEXT_VIEWER);
118      pDialog->SetHeading(URIUtils::GetFileName(path));
119      pDialog->SetText(data);
120      pDialog->UseMonoFont(useMonoFont);
121      pDialog->Open();
122    }
123    catch(const std::bad_alloc&)
124    {
125      CLog::Log(LOGERROR, "Not enough memory to load text file %s", path.c_str());
126    }
127    catch(...)
128    {
129      CLog::Log(LOGERROR, "Exception while trying to view text file %s", path.c_str());
130    }
131  }
132}