Ensuring the PNG support dont break the library initialization under older browsers

Author: diegocr

bower.json

@@ -1,6 +1,6 @@
 {
   "name": "jspdf",
-  "version": "1.0.118",
+  "version": "1.0.119",
   "homepage": "https://github.com/mrrio/jspdf",
   "description": "PDF Document creation from JavaScript",
   "main": "dist/jspdf.min.js",

dist/jspdf.debug.js

@@ -1,7 +1,7 @@
 /** @preserve
  * jsPDF - PDF Document creation from JavaScript
- * Version 1.0.118-git Built on 2014-04-28T19:38
- *                           CommitID ce42cbafba
+ * Version 1.0.119-git Built on 2014-04-29T03:48
+ *                           CommitID 119a246e55
  *
  * Copyright (c) 2010-2014 James Hall, https://github.com/MrRio/jsPDF
  *               2010 Aaron Spike, https://github.com/acspike
@@ -556,7 +556,7 @@ var jsPDF = (function(global) {
 				bch = ch >> 8; // divide by 256
 				if (bch >> 8) {
 					/* something left after dividing by 256 second time */
-					throw new Error("Character at position " + i.toString(10) + " of string '"
+					throw new Error("Character at position " + i + " of string '"
 						+ text + "' exceeds 16bits. Cannot be encoded into UCS-2 BE");
 				}
 				newtext.push(bch);
@@ -624,10 +624,10 @@ var jsPDF = (function(global) {
 			out(drawColor);
 			// resurrecting non-default line caps, joins
 			if (lineCapID !== 0) {
-				out(lineCapID.toString(10) + ' J');
+				out(lineCapID + ' J');
 			}
 			if (lineJoinID !== 0) {
-				out(lineJoinID.toString(10) + ' j');
+				out(lineJoinID + ' j');
 			}
 			events.publish('addPage', { pageNumber : page });
 		},
@@ -1576,7 +1576,7 @@ var jsPDF = (function(global) {
 				throw new Error("Line cap style of '" + style + "' is not recognized. See or extend .CapJoinStyles property for valid styles");
 			}
 			lineCapID = id;
-			out(id.toString(10) + ' J');
+			out(id + ' J');
 
 			return this;
 		};
@@ -1597,7 +1597,7 @@ var jsPDF = (function(global) {
 				throw new Error("Line join style of '" + style + "' is not recognized. See or extend .CapJoinStyles property for valid styles");
 			}
 			lineJoinID = id;
-			out(id.toString(10) + ' j');
+			out(id + ' j');
 
 			return this;
 		};
@@ -1693,7 +1693,7 @@ var jsPDF = (function(global) {
 	 * pdfdoc.mymethod() // <- !!!!!!
 	 */
 	jsPDF.API = {events:[]};
-	jsPDF.version = "1.0.118-debug 2014-04-28T19:38:diegocr";
+	jsPDF.version = "1.0.119-debug 2014-04-29T03:48:diegocr";
 
 	if (typeof define === 'function') {
 		define(function() {
@@ -1703,7 +1703,7 @@ var jsPDF = (function(global) {
 		global.jsPDF = jsPDF;
 	}
 	return jsPDF;
-}(self));
+}(typeof self !== "undefined" && self || typeof window !== "undefined" && window || this));
 /**
  * jsPDF addHTML PlugIn
  * Copyright (c) 2014 Diego Casorran
@@ -7552,7 +7552,7 @@ var Deflater = (function(obj) {
 */
 
 
-(function() {
+(function(global) {
   var PNG;
 
   PNG = (function() {
@@ -7895,9 +7895,12 @@ var Deflater = (function(obj) {
       return ret;
     };
 
-    scratchCanvas = document.createElement('canvas');
-
-    scratchCtx = scratchCanvas.getContext('2d');
+    try {
+        scratchCanvas = global.document.createElement('canvas');
+        scratchCtx = scratchCanvas.getContext('2d');
+    } catch(e) {
+        return -1;
+    }
 
     makeImage = function(imageData) {
       var img;
@@ -7991,9 +7994,9 @@ var Deflater = (function(obj) {
 
   })();
 
-  window.PNG = PNG;
+  global.PNG = PNG;
 
-}).call(this);
+})(typeof window !== "undefined" && window || this);
 /*
  * Extracted from pdf.js
  * https://github.com/andreasgal/pdf.js
@@ -8118,6 +8121,9 @@ var DecodeStream = (function() {
 })();
 
 var FlateStream = (function() {
+  if (typeof Uint32Array === 'undefined') {
+    return undefined;
+  }
   var codeLenCodeMap = new Uint32Array([
     16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15
   ]);
@@ -8645,4 +8651,4 @@ var FlateStream = (function() {
 		};
 	}
 
-})(this);
+})(typeof self !== "undefined" && self || typeof window !== "undefined" && window || this);

dist/jspdf.min.js

@@ -1703,4 +1703,4 @@ var jsPDF = (function(global) {
 		global.jsPDF = jsPDF;
 	}
 	return jsPDF;
-}(self));
+}(typeof self !== "undefined" && self || typeof window !== "undefined" && window || this));

jspdf.js

@@ -122,6 +122,9 @@ var DecodeStream = (function() {
 })();
 
 var FlateStream = (function() {
+  if (typeof Uint32Array === 'undefined') {
+    return undefined;
+  }
   var codeLenCodeMap = new Uint32Array([
     16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15
   ]);

libs/png_support/png.js

@@ -186,4 +186,4 @@
 		};
 	}
 
-})(this);
+})(typeof self !== "undefined" && self || typeof window !== "undefined" && window || this);