From 5565dc1b1421807f242d0e402895aecbd0749851 Mon Sep 17 00:00:00 2001
From: Alon Levy <alon@pobox.com>
Date: Mon, 4 May 2015 20:02:08 +0300
Subject: client: update selected type prompt based on cursor

---
 src/client/textanalysis.js            | 12 ++++++++----
 src/client/textanalysis.ui.js         | 12 +++++++++++-
 src/client/view/textanalyser_input.js |  4 ++++
 3 files changed, 23 insertions(+), 5 deletions(-)

(limited to 'src/client')

diff --git a/src/client/textanalysis.js b/src/client/textanalysis.js
index 354ac760..22a11527 100644
--- a/src/client/textanalysis.js
+++ b/src/client/textanalysis.js
@@ -12,10 +12,8 @@ var separator_string = rz_config.separator_string;
 var typeindex = 0,
     nodetypes = model_types.nodetypes,
     nodetypes_count = nodetypes.length,
-    default_nodetype = nodetypes[0],
-    node_name_to_type = {};
-
-util.assert(nodetypes.indexOf(default_nodetype) !== -1);
+    node_name_to_type = {},
+    nodetype_to_index = _.object(nodetypes, _.range(nodetypes.length));
 
 var _get_lastnode,
     get_lastnode = function (editgraph, cursor) {
@@ -619,6 +617,11 @@ function init(main_graph)
         .onValue(auto_suggest__update_from_graph);
 }
 
+function selected_type_set(typename)
+{
+    typeindex = nodetype_to_index[typename] || 0;
+}
+
 return {
     init:init,
     textAnalyser:textAnalyser,
@@ -643,6 +646,7 @@ return {
         typeindex = (typeindex + nodetypes_count - 1) % nodetypes_count;
         return selectedType();
     },
+    selected_type_set: selected_type_set,
     selected_type: selectedType,
 };
 });
diff --git a/src/client/textanalysis.ui.js b/src/client/textanalysis.ui.js
index 0e126d9b..13c861d0 100644
--- a/src/client/textanalysis.ui.js
+++ b/src/client/textanalysis.ui.js
@@ -118,7 +118,8 @@ function analyzeSentence(spec)
 
 function changeType(up)
 {
-    var lastnode = textanalysis.lastnode(rz_core.edit_graph, input.selectionStart()),
+    var cursor = input.selectionStart(),
+        lastnode = textanalysis.lastnode(rz_core.edit_graph, cursor),
         nodetype,
         id,
         name;
@@ -145,6 +146,15 @@ var main = function ()
                 finalize: false,
             }));
         });
+    input.on_cursor.onValue(function (cursor) {
+        var lastnode = textanalysis.lastnode(rz_core.edit_graph, cursor);
+
+        if (lastnode === null) {
+            return;
+        }
+        textanalysis.selected_type_set(lastnode.type);
+        typeselection.showChosenType(lastnode.id, lastnode.type);
+    });
     input.on_type.onValue(function (up) {
             if (textanalysis.lastnode(rz_core.edit_graph, input.selectionStart())) {
                 changeType(up);
diff --git a/src/client/view/textanalyser_input.js b/src/client/view/textanalyser_input.js
index bf96db1b..89602008 100644
--- a/src/client/view/textanalyser_input.js
+++ b/src/client/view/textanalyser_input.js
@@ -74,6 +74,7 @@ function textanalyser_input(spec) {
             spec: spec,
             on_analysis__input: new Bacon.Bus(),
             on_analysis__output: new Bacon.Bus(),
+            on_cursor: new Bacon.Bus(),
             on_resize: new Bacon.Bus(),
             element: $(element_name),
             selectionStart: selectionStart,
@@ -149,6 +150,9 @@ function textanalyser_input(spec) {
         e.preventDefault();
     });
 
+    ta.on_cursor.plug(element.asEventStream('input keyup click selectionchange').map(function() {
+        return selectionStart();}).skipDuplicates());
+
     ta.on_analysis__input.plug(element.asEventStream('input').map(current_value).map(function (val) {
         return update_element(val);
     }));
-- 
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