adds a button to select module dependencies of selected modules.

jade.js

@@ -652,11 +652,43 @@ jade_defs.top_level = function(jade) {
         dialog('Select modules to load',contents,upload,offset);
     };
 
+    // given a single module name M, generate a set of all the module
+    // names that M depends on.
+    function module_deps(mname) {
+        var depNames = []; 
+
+        var allMods = jade.model.json_modules().json;
+        var allModNames = Object.keys(allMods);
+
+        var findSubMods = function(modName) {
+            curMod = allMods[modName];
+            if (curMod === undefined) throw "module name not found: " + modName;
+
+            schems = curMod.schematic;            
+            if (schems === undefined) return; // atomic unit of jade universe?
+
+            schems.forEach(function(el) {
+                subName = el[0];
+                // is this schematic element a sub module?
+                if (allModNames.indexOf(subName) == -1) return; // nope.
+                // has it been processed already?
+                if (depNames.indexOf(subName) != -1) return; // yep.
+                // don't export built-ins?
+                if (subName.startsWith("/gate")) return; 
+
+                depNames.push(subName);
+                findSubMods(subName);
+            });
+        };
+        findSubMods(mname);
+        return depNames;
+    }
+
     // let user select which modules to export to their Downloads directory
     function export_modules(j) {
         var all_modules = jade.model.json_modules().json;
         var mnames = Object.keys(all_modules).sort();
-
+        
         var win;
         var contents = module_table(mnames);
 
@@ -675,9 +707,37 @@ jade_defs.top_level = function(jade) {
             // close dialog box
             window_close(win[0]);
         });
+
+        // add a button to checkoff all module dependencies
+        var depsButton = $('<a "_blank"><button>select module depencies</button></a>');
+        depsButton.on('click',function (e) {
+            var selected = {};
+            var deps = [];
+            $('input',contents).each(function (index,input) {
+                input = $(input);
+                var mname = input.attr('name');
+                if (input[0].checked) {
+                    deps = deps.concat(module_deps(mname));
+                }
+            });
+            $('input',contents).each(function (index,input) {
+                input = $(input);
+                var mname = input.attr('name');
+                if (deps.indexOf(mname) != -1) {
+                    input[0].checked = true;
+                }
+            });
+
+        });
+
+        var doDeps = $('<td></td>').attr('colspan',$('#select-all',contents).attr('colspan')).append(depsButton);
+        contents.append($('<tr align="center"></tr>').append(doDeps));
+
         var doit = $('<td></td>').attr('colspan',$('#select-all',contents).attr('colspan')).append(a);
         contents.append($('<tr align="center"></tr>').append(doit));
-
+
+
+
         var offset = $('.jade-tabs-div',j.top_level).offset();
         win = jade_window('Export modules', contents, offset);
     };