add rz_config, provide id generation scheme control: hash/seq, defaulting to seq

3 files changed, 36 insertions, 6 deletions

diff --git a/src/main.js b/src/main.js
index 67213056..a401c1b2 100644
--- a/src/main.js
+++ b/src/main.js
@@ -1,5 +1,5 @@
-define(['textanalysis.ui', 'buttons', 'history', 'drag_n_drop', 'robot'],
-function(textanalysis_ui, buttons, history, drag_n_drop, robot) {
+define(['textanalysis.ui', 'buttons', 'history', 'drag_n_drop', 'robot', 'model/core', 'rz_config'],
+function(textanalysis_ui, buttons, history, drag_n_drop, robot, model_core, rz_config) {
 
     function expand(obj){
         if (!obj.savesize) {
@@ -16,8 +16,10 @@ function(textanalysis_ui, buttons, history, drag_n_drop, robot) {
         $('#textanalyser').onkeyup = function() { expand(this); };
 
         textanalysis_ui.main();
+
+        model_core.init(rz_config);
     }
-    
+
     return {
         main: main };
     }
diff --git a/src/model/core.js b/src/model/core.js
index ce75e41c..03d5db7b 100644
--- a/src/model/core.js
+++ b/src/model/core.js
@@ -8,12 +8,33 @@ define([], function() {
     /**
      * return a random id
      */
-    var random_id = function() {
-        return Math.random().toString(36).substring(2);
+    var random_id;
+
+    var random_id__hash = function() {
+        return Math.random().toString(36).substring(2, 10);
+    }
+
+    var random_id__seq = function () {
+        var id = 0;
+        function get_next() {
+            var next = id;
+            id += 1;
+            return next;
+        }
+        return get_next;
     }
 
     function random_node_name() {
-        return Math.random().toString(36).substring(2, 10);
+        return random_id__hash();
+    }
+
+    function init(config){
+        if (config['rand_id_generator'] == 'hash') {
+            random_id = random_id__hash;
+        }
+        if (config['rand_id_generator'] == 'seq') {
+            random_id = random_id__seq();
+        }
     }
 
     function Node() {
@@ -141,6 +162,7 @@ define([], function() {
     }
 
     return {
+        init : init,
         random_node_name : random_node_name,
         crete_node_from_spec : crete_node_from_spec,
         crete_link_from_spec : crete_link_from_spec,
diff --git a/src/rz_config.js b/src/rz_config.js
new file mode 100644
index 00000000..6093573a
--- /dev/null
+++ b/src/rz_config.js
@@ -0,0 +1,6 @@
+define(function() {
+
+    return {
+        'rand_id_generator' : 'hash',
+    };
+});