flow like the river

VISUALIZACION/node_modules/autoprefixer/lib/hacks/flex.js

@@ -0,0 +1,64 @@
+(function() {
+  var Declaration, Flex, flexSpec, list,
+    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
+    hasProp = {}.hasOwnProperty;
+
+  flexSpec = require('./flex-spec');
+
+  Declaration = require('../declaration');
+
+  list = require('postcss/lib/list');
+
+  Flex = (function(superClass) {
+    extend(Flex, superClass);
+
+    function Flex() {
+      return Flex.__super__.constructor.apply(this, arguments);
+    }
+
+    Flex.names = ['flex', 'box-flex'];
+
+    Flex.oldValues = {
+      'auto': '1',
+      'none': '0'
+    };
+
+    Flex.prototype.prefixed = function(prop, prefix) {
+      var ref, spec;
+      ref = flexSpec(prefix), spec = ref[0], prefix = ref[1];
+      if (spec === 2009) {
+        return prefix + 'box-flex';
+      } else {
+        return Flex.__super__.prefixed.apply(this, arguments);
+      }
+    };
+
+    Flex.prototype.normalize = function() {
+      return 'flex';
+    };
+
+    Flex.prototype.set = function(decl, prefix) {
+      var components, spec;
+      spec = flexSpec(prefix)[0];
+      if (spec === 2009) {
+        decl.value = list.space(decl.value)[0];
+        decl.value = Flex.oldValues[decl.value] || decl.value;
+        return Flex.__super__.set.call(this, decl, prefix);
+      } else if (spec === 2012) {
+        components = list.space(decl.value);
+        if (components.length === 3 && components[2] === '0') {
+          decl.value = components.slice(0, 2).concat('0px').join(' ');
+        }
+        return Flex.__super__.set.call(this, decl, prefix);
+      } else {
+        return Flex.__super__.set.apply(this, arguments);
+      }
+    };
+
+    return Flex;
+
+  })(Declaration);
+
+  module.exports = Flex;
+
+}).call(this);