src/gui/qt_moc.gypi

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# This file provides a common rule for Qt moc command.
{
  'conditions': [['use_qt=="YES"', {

  'variables': {
    'includes': ['qt_vars.gypi'],
    'conditions': [
      ['qt_dir', {
        'moc_path': '<(qt_dir)/bin/moc<(EXECUTABLE_SUFFIX)',
      }, {
        'conditions': [
          ['pkg_config_command', {
            'moc_path': '<!(<(pkg_config_command) --variable=moc_location QtGui)',
          }, {
            'moc_path': '<(qt_dir_env)/bin/moc<(EXECUTABLE_SUFFIX)',
          }],
        ],
      }],
    ],
  },
  'rules': [
    {
      'rule_name': 'qtmoc',
      'extension': 'h',
      'outputs': [
        '<(gen_out_dir)/<(subdir)/moc_<(RULE_INPUT_ROOT).cc',
      ],
      'action': [
        '<(moc_path)',
        # Specify include path as a workaround of b/4905149
        '-p', '<(relative_dir)/<(subdir)',
        '-o', '<(gen_out_dir)/<(subdir)/moc_<(RULE_INPUT_ROOT).cc',
        '<(RULE_INPUT_PATH)',
      ],
      'message': 'Generatinc moc files from <(RULE_INPUT_PATH)',
    },
  ],

  }]],  # End of use_qt=="YES"
}