first commit

.clang-format

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+AlignEscapedNewlinesLeft: true
+AlignTrailingComments: true
+AllowAllParametersOfDeclarationOnNextLine: true
+AllowShortFunctionsOnASingleLine: None
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakBeforeMultilineStrings: true
+AlwaysBreakTemplateDeclarations: true
+BinPackParameters: true
+BreakBeforeBinaryOperators: false
+BreakBeforeBraces: Allman
+BreakBeforeTernaryOperators: true
+BreakConstructorInitializersBeforeComma: false
+ColumnLimit: 80
+CommentPragmas: \*
+ConstructorInitializerAllOnOneLineOrOnePerLine: true
+ConstructorInitializerIndentWidth: 2
+ContinuationIndentWidth: 2
+Cpp11BracedListStyle: true
+DerivePointerBinding: false
+ExperimentalAutoDetectBinPacking: false
+#ForEachMacros:
+IndentCaseLabels: true
+IndentFunctionDeclarationAfterType: true
+IndentWidth: 2
+KeepEmptyLinesAtTheStartOfBlocks: true
+#Language: Cpp
+MaxEmptyLinesToKeep: 1
+NamespaceIndentation: None
+ObjCSpaceAfterProperty: true
+ObjCSpaceBeforeProtocolList: false
+PenaltyBreakBeforeFirstCallParameter: 1
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+PenaltyBreakFirstLessLess: 120
+PenaltyBreakString: 1000
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+SpaceBeforeAssignmentOperators: true
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+Standard: Cpp11
+TabWidth: 8
+UseTab: Never

.gitignore

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+/build/
+/node_modules/

.syntastic_cpp_config

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+-std=c++11
+-Inode_modules/nan

README.md

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+# system-icon
+
+Get associated file/folder icon for Node.js.
+
+## Installation
+
+```bash
+$ npm install --save system-icon
+```
+
+## Usage
+
+Get icon for file or folder path:
+
+```js
+const {writeFileSync} = require('fs');
+const {
+  getIconForPath,
+  ICON_SIZE_MEDIUM
+} = require('system-icon');
+
+getIconForPath("/path/to/file_or_folder", ICON_SIZE_MEDIUM, (err, result) => {
+  if (err) {
+    console.error(err);
+  } else {
+    writeFileSync("icon.png", result);
+  }
+});
+```
+
+Get icon for file extension:
+
+```js
+const {writeFileSync} = require('fs');
+const {
+  getIconForExtension,
+  ICON_SIZE_MEDIUM
+} = require('system-icon');
+
+getIconForExtension(".ext", ICON_SIZE_MEDIUM, (err, result) => {
+  if (err) {
+    console.error(err);
+  } else {
+    writeFileSync("icon.png", result);
+  }
+});
+```
+
+## API
+
+### Constants
+
+#### Size constants
+
+The correspondence between the size constants and the icon size actually obtainable on each platform is as follows:
+
+| Constant                | Windows | macOS   |
+| ----------------------- | ------- | ------- |
+| `ICON_SIZE_EXTRA_SMALL` |  16x16  |  16x16  |
+| `ICON_SIZE_SMALL`       |  32x32  |  32x32  |
+| `ICON_SIZE_MEDIUM`      |  64x64  |  64x64  |
+| `ICON_SIZE_LARGE`       | 256x256 | 256x256 |
+| `ICON_SIZE_EXTRA_LARGE` | 256x256 | 512x512 |
+
+### Functions
+
+#### getIconForPath(path, size, callback)
+
+Gets associated icon for file or folder path, and returns it in the PNG format.
+
+#### getIconForExtension(extension, size, callback)
+
+Gets associated icon for file extension, and returns it in the PNG format.
+
+## License
+
+MIT

addon.cpp

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+#include "system_icon.hpp"
+#include <nan.h>
+
+NAN_METHOD(getIconForExtension)
+{
+  if (info.Length() < 3)
+  {
+    Nan::ThrowTypeError("Wrong number of arguments");
+    return;
+  }
+
+  if (!info[0]->IsString() || !info[1]->IsNumber() || !info[2]->IsFunction())
+  {
+    Nan::ThrowTypeError("Wrong arguments");
+    return;
+  }
+
+  v8::String::Utf8Value extension{info[0]->ToString()};
+  auto size = static_cast<IconSize>(info[1]->Int32Value());
+  auto callback = new Nan::Callback(info[2].As<v8::Function>());
+  Nan::AsyncQueueWorker(
+    new SystemIconAsyncWorker<ExtensionTag>(*extension, size, callback));
+}
+
+NAN_METHOD(getIconForPath)
+{
+  if (info.Length() < 3)
+  {
+    Nan::ThrowTypeError("Wrong number of arguments");
+    return;
+  }
+
+  if (!info[0]->IsString() || !info[1]->IsNumber() || !info[2]->IsFunction())
+  {
+    Nan::ThrowTypeError("Wrong arguments");
+    return;
+  }
+
+  v8::String::Utf8Value path{info[0]->ToString()};
+  auto size = static_cast<IconSize>(info[1]->Int32Value());
+  auto callback = new Nan::Callback(info[2].As<v8::Function>());
+  Nan::AsyncQueueWorker(
+    new SystemIconAsyncWorker<PathTag>(*path, size, callback));
+}
+
+NAN_MODULE_INIT(init)
+{
+  NAN_EXPORT(target, getIconForExtension);
+  NAN_EXPORT(target, getIconForPath);
+
+  Nan::Set(target, Nan::New("ICON_SIZE_EXTRA_SMALL").ToLocalChecked(),
+           Nan::New(static_cast<int>(IconSize::ExtraSmall)));
+  Nan::Set(target, Nan::New("ICON_SIZE_SMALL").ToLocalChecked(),
+           Nan::New(static_cast<int>(IconSize::Small)));
+  Nan::Set(target, Nan::New("ICON_SIZE_MEDIUM").ToLocalChecked(),
+           Nan::New(static_cast<int>(IconSize::Medium)));
+  Nan::Set(target, Nan::New("ICON_SIZE_LARGE").ToLocalChecked(),
+           Nan::New(static_cast<int>(IconSize::Large)));
+  Nan::Set(target, Nan::New("ICON_SIZE_EXTRA_LARGE").ToLocalChecked(),
+           Nan::New(static_cast<int>(IconSize::ExtraLarge)));
+}
+
+NODE_MODULE(system_icon, init);

binding.gyp

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+{
+  'target_defaults': {
+    'conditions': [
+      ['OS=="win"', {
+        'defines': [
+          '_WIN32_WINNT=0x0600',
+        ],
+      }],
+    ],
+    'msbuild_settings': {
+      'ClCompile': {
+        'WarningLevel': 'Level3',
+        'Optimization': 'Full',
+        'FunctionLevelLinking': 'true',
+      },
+      'Lib': {
+        'LinkTimeCodeGeneration': 'true',
+      },
+    },
+    'msvs_settings': {
+      'VCCLCompilerTool': {
+        'WarningLevel': '3',
+        'Optimization': '3',
+        'EnableFunctionLevelLinking': 'true',
+      },
+      'VCLibrarianTool': {
+        'LinkTimeCodeGeneration': 'true',
+      },
+    },
+    'xcode_settings': {
+      'CLANG_CXX_LANGUAGE_STANDARD': 'c++11',
+      'CLANG_CXX_LIBRARY': 'libc++',
+      'CLANG_ENABLE_OBJC_ARC': 'YES',
+      'GCC_OPTIMIZATION_LEVEL': '3',
+      'GCC_VERSION': 'com.apple.compilers.llvm.clang.1_0',
+      'GCC_WARN_SHADOW': 'YES',
+      'GCC_WARN_UNUSED_VARIABLE': 'YES',
+      'WARNING_CFLAGS': ['-Wall'],
+    },
+  },
+  'targets': [
+    {
+      'target_name': 'addon',
+      'include_dirs': [
+        '<!(node -e "require(\'nan\')")',
+      ],
+      'sources': [
+        'addon.cpp',
+      ],
+      'conditions': [
+        ['OS=="mac"', {
+          'link_settings': {
+            'libraries': [
+              '-framework AppKit',
+            ],
+          },
+          'sources': [
+            'system_icon_mac.mm',
+          ],
+        }],
+        ['OS=="win"', {
+          'link_settings': {
+            'libraries': [
+              'Gdiplus.lib',
+            ],
+          },
+          'sources': [
+            'system_icon_win.cpp',
+          ],
+        }],
+        ['OS!="mac" and OS!="win"', {
+          'sources': [
+            'system_icon.cpp',
+          ],
+        }],
+      ],
+    },
+  ],
+}

index.js

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+module.exports = require('bindings')('addon');

package.json

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+{
+  "name": "system-icon",
+  "description": "Get associated file/folder icon",
+  "version": "0.0.0",
+  "author": "Masaki Tojo",
+  "bugs": {
+    "url": "https://github.com/mtojo/node-system-icon/issues"
+  },
+  "devDependencies": {
+    "bindings": "~1.3.0",
+    "nan": "~2.8.0"
+  },
+  "engines": {
+    "node": ">=6.0.0"
+  },
+  "homepage": "https://github.com/mtojo/node-system-icon",
+  "license": "MIT",
+  "main": "index.js",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/mtojo/node-system-icon.git"
+  },
+  "scripts": {
+    "install": "node-gyp rebuild"
+  }
+}

system_icon.cpp

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+#include "system_icon.hpp"
+
+template <>
+void SystemIconAsyncWorker<ExtensionTag>::Execute()
+{
+  // Do nothing.
+}
+
+template <>
+void SystemIconAsyncWorker<PathTag>::Execute()
+{
+  // Do nothing.
+}