implement pinch to zoom

node_modules/transition-property/Makefile

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+webpack:
+	@webpack-dev-server 'mocha!./test/test.js' --hot --inline
+
+test:
+	@karma start
+
+.PHONY: test

node_modules/transition-property/Readme.md

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+# transition-property
+
+## Install
+
+    npm i transition-property -S
+
+## Usage
+
+``` js
+var transitionProperty = require('transition-property')
+el.style[transitionProperty] = '100ms -webkit-transform linear'
+```

node_modules/transition-property/index.js

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+var styles = [
+  'webkitTransition',
+  'MozTransition',
+  'OTransition',
+  'msTransition',
+  'transition'
+]
+
+var el = document.createElement('p')
+var style
+
+for (var i = 0; i < styles.length; i++) {
+  if (null != el.style[styles[i]]) {
+    style = styles[i]
+    break
+  }
+}
+el = null
+
+module.exports = style

node_modules/transition-property/karma.conf.js

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+// Karma configuration
+// npm i karma karma-cli karma-firefox-launcher karma-mocha karma-webpack karma-wrap-preprocessor mocha --save-dev
+// node_modules/.bin/karma start --single-run
+module.exports = function(config) {
+  config.set({
+
+    // base path that will be used to resolve all patterns (eg. files, exclude)
+    basePath: '',
+
+
+    // frameworks to use
+    // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
+    frameworks: ['mocha'],
+
+
+    // list of files / patterns to load in the browser
+    files: [
+      'test/test.js'
+    ],
+
+    // list of files to exclude
+    exclude: [
+    ],
+
+    // preprocess matching files before serving them to the browser
+    // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
+    preprocessors: {
+      'test/test.js': ['webpack']
+    },
+
+    // test results reporter to use
+    // possible values: 'dots', 'progress'
+    // available reporters: https://npmjs.org/browse/keyword/karma-reporter
+    reporters: ['progress'],
+
+
+    // web server port
+    port: 9876,
+
+
+    // enable / disable colors in the output (reporters and logs)
+    colors: true,
+
+
+    // level of logging
+    // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
+    logLevel: config.LOG_INFO,
+
+
+    // enable / disable watching file and executing tests whenever any file changes
+    autoWatch: true,
+
+    webpack: {
+      module: {
+        loaders: [
+          {test: /\.html$/, loader: 'html'}
+        ]
+      }
+    },
+
+    // start these browsers
+    // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
+    browsers: ['Firefox'],
+
+    webpackMiddleware: {
+        noInfo: true
+    },
+    // Continuous Integration mode
+    // if true, Karma captures browsers, runs the tests and exits
+    singleRun: true
+  });
+};
+

node_modules/transition-property/package.json

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+{
+  "name": "transition-property",
+  "version": "1.0.1",
+  "description": "transition property detect",
+  "main": "index.js",
+  "directories": {
+    "test": "test"
+  },
+  "scripts": {
+    "test": "make test"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+ssh://git@github.com/chemzqm/transition-property.git"
+  },
+  "keywords": [
+    "transition",
+    "property"
+  ],
+  "author": "chemzqm@gmail.com",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/chemzqm/transition-property/issues"
+  },
+  "homepage": "https://github.com/chemzqm/transition-property#readme",
+  "devDependencies": {
+    "mocha": "^2.3.3",
+    "mocha-loader": "^0.7.1",
+    "webpack": "^1.12.3",
+    "webpack-dev-server": "^1.12.1"
+  }
+}

node_modules/transition-property/test/test.js

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+/*global describe, it*/
+var assert = require('assert')
+var prop = require('..')
+
+describe('transition-property', function() {
+  it('should be transition', function () {
+    assert.equal(/transition/.test(prop))
+  })
+})