CSS prefixer

build/gulp/style-compiler.js

@@ -1,24 +1,45 @@
 var gulp = require('gulp');
 var path = require('path');
 var context = require('./context.js');
+var autoPrefix = require('gulp-autoprefixer');
 
 function runStyleCompiler(command, params, callback) {
-    var spawn = require('child_process').spawn;
-    var process = spawn(
-        'dotnet',
-        ['build/style-compiler/bin/style-compiler.dll', command].concat(params),
-        { stdio: 'inherit' }
-    );
+    var spawn = require('child_process').spawn,
+        process = spawn(
+            'dotnet',
+            ['build/style-compiler/bin/style-compiler.dll', command].concat(params),
+            { stdio: 'inherit' }
+        );
 
     process.on('exit', function(code) {
         if(code === 0) {
-            callback();
+            addCssPrefixes(params, callback);
         } else {
             callback('Style compiler failed');
         }
     });
 }
 
+function addCssPrefixes(params, callback) {
+    var outputPath;
+
+    if(params.length > 0) {
+        outputPath = params.find(param => !!param.match("--output-path"));
+        outputPath = outputPath && outputPath.replace("--output-path=", "");
+    }
+    if(outputPath) {
+        gulp.src(outputPath + "/*.css")
+            .pipe(autoPrefix())
+            .pipe(gulp.dest(function(file) {
+                return file.base;
+            }).on('end', function() {
+                callback();
+            })).on('error', function() {
+                callback('  Autoprefixer failed');
+            });
+    }
+}
+
 function generateCustomTheme(baseTheme, baseColorScheme, baseSizeScheme, customMetaPath, outputPath, callback) {
     var params = [
         '--base-theme=' + baseTheme,

package.json

@@ -61,6 +61,7 @@
     "gulp-typescript": "^3.0.2",
     "gulp-uglify": "^1.5.3",
     "gulp-watch": "^5.0.0",
+    "gulp-autoprefixer": "^5.0.0",
     "handlebars": "4.0.11",
     "hogan.js": "3.0.2",
     "jquery": "3.1.1",
@@ -104,5 +105,11 @@
     "dev": "gulp dev",
     "test-env": "node testing/launch"
   },
+  "browserslist": [
+    "last 1 version",
+    "ios > 6",
+    "ie > 10",
+    "> 1%"
+  ],
   "pre-commit": "lint-staged"
 }