Switch to canvas-prebuilt. Refs assetgraph/assetgraph-builder#627

lib/index.js

@@ -1,7 +1,8 @@
 (function () {
     var Canvas,
+        Image,
         getCanvasImageData = function (imageBuffer, callback) {
-            var canvasImage = new Canvas.Image();
+            var canvasImage = new Image();
 
             canvasImage.onerror = function () {
                 callback(new Error('error while reading from input stream'));
@@ -108,7 +109,9 @@
 
     if (typeof exports === 'object') {
         // Assume nodejs
-        Canvas = require('canvas');
+        var canvasPrebuilt = require('canvas-prebuilt');
+        Canvas = canvasPrebuilt.Canvas;
+        Image = canvasPrebuilt.Image;
         module.exports = histogram;
     } else {
         // Polyfill canvas constructor
@@ -119,7 +122,7 @@
 
             return canvas;
         };
-        Canvas.Image = Image;
+        Image = window.Image;
 
         if (typeof define === 'function') {
             // AMD module

package.json

@@ -34,7 +34,7 @@
   ],
   "main": "lib/index.js",
   "dependencies": {
-    "canvas": "^1.6.7"
+    "canvas-prebuilt": "2.0.0-alpha.14"
   },
   "devDependencies": {
     "coveralls": "^2.11.9",
@@ -53,9 +53,8 @@
   },
   "scripts": {
     "lint": "jshint .",
-    "phantom": "phantomjs ./node_modules/mocha-phantomjs-core/mocha-phantomjs-core.js test/global.html spec \"`node -pe 'JSON.stringify({useColors:true,grep:process.env.grep})'`\"",
-    "test": "npm run lint && mocha && npm run phantom",
-    "preversion": "uglifyjs lib/index.js -m -c > histogram.min.js && git add histogram.min.js",
+    "test": "npm run lint && mocha && mocha-phantomjs test/global.html",
+    "preversion": "npm t && uglifyjs lib/index.js -m -c > histogram.min.js && git add histogram.min.js",
     "travis": "npm run lint && npm run coverage",
     "coverage": "istanbul cover _mocha"
   }