allow custom jsfiles array, r=tschaub (closes #2947)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@11136 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers.js

@@ -30,6 +30,27 @@
      */
     var scriptName = (!singleFile) ? "lib/OpenLayers.js" : "OpenLayers.js";
 
+    /*
+     * If window.OpenLayers isn't set when this script (OpenLayers.js) is
+     * evaluated (and if singleFile is false) then this script will load
+     * *all* OpenLayers scripts. If window.OpenLayers is set to an array
+     * then this script will attempt to load scripts for each string of
+     * the array, using the string as the src of the script.
+     *
+     * Example:
+     * (code)
+     *     <script type="text/javascript">
+     *         window.OpenLayers = [
+     *             "OpenLayers/Util.js",
+     *             "OpenLayers/BaseTypes.js"
+     *         ];
+     *     </script>
+     *     <script type="text/javascript" src="../lib/OpenLayers.js"></script>
+     * (end)
+     * In this example OpenLayers.js will load Util.js and BaseTypes.js only.
+     */
+    var jsFiles = window.OpenLayers;
+
     /**
      * Namespace: OpenLayers
      * The OpenLayers object provides a namespace for all things OpenLayers
@@ -60,6 +81,7 @@
             return (function() { return l; });
         })()
     };
+
     /**
      * OpenLayers.singleFile is a flag indicating this file is being included
      * in a Single File Library build of the OpenLayers Library.
@@ -71,7 +93,8 @@
      * OpenLayers library code as it will be appended at the end of this file.
      */
     if(!singleFile) {
-        var jsfiles = new Array(
+        if (!jsFiles) {
+            jsFiles = [
                 "OpenLayers/BaseTypes/Class.js",
                 "OpenLayers/Util.js",
                 "OpenLayers/BaseTypes.js",
@@ -314,17 +337,20 @@
                 "OpenLayers/Symbolizer/Raster.js",
                 "OpenLayers/Lang.js",
                 "OpenLayers/Lang/en.js"
-        ); // etc.
+            ]; // etc.
+        }
 
         // use "parser-inserted scripts" for guaranteed execution order
         // http://hsivonen.iki.fi/script-execution/
-        var allScriptTags = new Array(jsfiles.length);
+        var scriptTags = new Array(jsFiles.length);
         var host = OpenLayers._getScriptLocation() + "lib/";
-        for (var i=0, len=jsfiles.length; i<len; i++) {
-            allScriptTags[i] = "<script src='" + host + jsfiles[i] +
+        for (var i=0, len=jsFiles.length; i<len; i++) {
+            scriptTags[i] = "<script src='" + host + jsFiles[i] +
                                    "'></script>"; 
         }
-        document.write(allScriptTags.join(""));
+        if (scriptTags.length > 0) {
+            document.write(scriptTags.join(""));
+        }
     }
 })();
 

tests/Util.html

@@ -5,16 +5,20 @@
     var custom$ = function() {};
     window.$ = custom$;
   </script>
-  <script src="../lib/OpenLayers/SingleFile.js"></script>
-  <script src="../lib/OpenLayers/BaseTypes/Class.js"></script>
-  <script src="../lib/OpenLayers/Util.js"></script>
-  <script src="../lib/OpenLayers/BaseTypes.js"></script>
-  <script src="../lib/OpenLayers/BaseTypes/Element.js"></script>
-  <script src="../lib/OpenLayers/BaseTypes/LonLat.js"></script>
-  <script src="../lib/OpenLayers/BaseTypes/Pixel.js"></script>
-  <script src="../lib/OpenLayers/BaseTypes/Size.js"></script>
-  <script src="../lib/OpenLayers/Lang.js"></script>
-  <script src="../lib/OpenLayers/Console.js"></script>
+  <script>
+    var OpenLayers = [
+        "OpenLayers/BaseTypes/Class.js",
+        "OpenLayers/Util.js",
+        "OpenLayers/BaseTypes.js",
+        "OpenLayers/BaseTypes/Element.js",
+        "OpenLayers/BaseTypes/LonLat.js",
+        "OpenLayers/BaseTypes/Pixel.js",
+        "OpenLayers/BaseTypes/Size.js",
+        "OpenLayers/Lang.js",
+        "OpenLayers/Console.js"
+    ];
+  </script>
+  <script src="../lib/OpenLayers.js"></script>
   <script type="text/javascript">
     var isMozilla = (navigator.userAgent.indexOf("compatible") == -1);
     var map; 

tests/list-tests.html

@@ -163,6 +163,7 @@
     <li>OpenLayers2.html</li>
     <li>OpenLayers3.html</li>
     <li>OpenLayers4.html</li>
+    <li>OpenLayersJsFiles.html</li>
     <li>Popup.html</li>
     <li>Popup/Anchored.html</li>
     <li>Popup/AnchoredBubble.html</li>