Adding Cell.grow back to fix bug.

This can go away once we star to use CodeMirror for TextCells.

IPython/frontend/html/notebook/static/js/cell.js

@@ -1,63 +1,79 b''
 
 //============================================================================
 // Cell
 //============================================================================
 
 var IPython = (function (IPython) {
 
     var utils = IPython.utils;
 
     var Cell = function (notebook) {
         this.notebook = notebook;
         this.selected = false;
         this.element;
         this.create_element();
         if (this.element !== undefined) {
             this.element.data("cell", this);
             this.bind_events();
         }
         this.cell_id = utils.uuid();
     };
 
 
     Cell.prototype.select = function () {
         this.element.addClass('ui-widget-content ui-corner-all');
         this.selected = true;
         // TODO: we need t test across browsers to see if both of these are needed.
         // In the meantime, there should not be any harm in having them both.
         this.element.find('textarea').trigger('focusin');
         this.element.find('textarea').trigger('focus');
     };
 
 
     Cell.prototype.unselect = function () {
         this.element.removeClass('ui-widget-content ui-corner-all');
         this.selected = false;
     };
 
 
     Cell.prototype.bind_events = function () {
         var that = this;
         var nb = that.notebook
         that.element.click(function (event) {
             if (that.selected === false) {
                 nb.select(nb.find_cell_index(that));
             };
         });
         that.element.focusin(function (event) {
             if (that.selected === false) {
                 nb.select(nb.find_cell_index(that));
             };
         });
     };
 
+    Cell.prototype.grow = function(element) {
+        // Grow the cell by hand. This is used upon reloading from JSON, when the
+        // autogrow handler is not called.
+        var dom = element.get(0);
+        var lines_count = 0;
+        // modified split rule from
+        // http://stackoverflow.com/questions/2035910/how-to-get-the-number-of-lines-in-a-textarea/2036424#2036424
+        var lines = dom.value.split(/\r|\r\n|\n/);
+        lines_count = lines.length;
+        if (lines_count >= 1) {
+            dom.rows = lines_count;
+        } else {
+            dom.rows = 1;
+        }
+    };
+
 
     // Subclasses must implement create_element.
     Cell.prototype.create_element = function () {};
 
     IPython.Cell = Cell;
 
     return IPython;
 
 }(IPython));