1 files changed, 157 insertions, 17 deletions

diff --git a/js/custom-search.js b/js/custom-search.js
index 73897035d..e5c172d3b 100644
--- a/js/custom-search.js
+++ b/js/custom-search.js
@@ -40,7 +40,7 @@ function custom_search_new_row() {
     var row = document.getElementById('custom_search_last_row');
     var clone = row.cloneNode(true);
     
-    _cs_fix_ids(clone);
+    _cs_fix_row_ids(clone);
    
     // We only want one copy of the buttons, in the new row. So the old
     // ones get deleted.
@@ -55,13 +55,28 @@ function custom_search_new_row() {
     // Always make sure there's only one row with this id.
     row.id = null;
     row.parentNode.appendChild(clone);
+    cs_reconfigure(row);
     fix_query_string(row);
     return clone;
 }
 
+var _cs_source_any_all;
 function custom_search_open_paren() {
     var row = document.getElementById('custom_search_last_row');
 
+    // create a copy of j_top and use that as the source, so we can modify
+    // j_top if required
+    if (!_cs_source_any_all) {
+        var j_top = document.getElementById('j_top');
+        _cs_source_any_all = j_top.cloneNode(true);
+    }
+
+    // find the parent any/all select, and remove the grouped option
+    var structure = _cs_build_structure(row);
+    var old_id = _cs_get_row_id(row);
+    var parent_j = document.getElementById(_cs_get_join(structure, 'f' + old_id));
+    _cs_remove_and_g(parent_j);
+
     // If there's an "Any/All" select in this row, it needs to stay as
     // part of the parent paren set.
     var old_any_all = _remove_any_all(row);
@@ -78,21 +93,20 @@ function custom_search_open_paren() {
     var not_for_paren = new_not[0].cloneNode(true);
 
     // Preserve the values when modifying the row.
-    var id = _cs_fix_ids(row, true);
+    var id = _cs_fix_row_ids(row, true);
     var prev_id = id - 1;
 
     var paren_row = row.cloneNode(false);
     paren_row.id = null;
     paren_row.innerHTML = '(<input type="hidden" name="f' + prev_id
-                        + '" value="OP">';
+                        + '" id="f' + prev_id + '" value="OP">';
     paren_row.insertBefore(not_for_paren, paren_row.firstChild);
     row.parentNode.insertBefore(paren_row, row);
-    
+
     // New paren set needs a new "Any/All" select.
     var any_all_container = document.createElement('div');
     YAHOO.util.Dom.addClass(any_all_container, ANY_ALL_SELECT_CLASS);
-    var j_top = document.getElementById('j_top');
-    var any_all = j_top.cloneNode(true);
+    var any_all = _cs_source_any_all.cloneNode(true);
     any_all.name = 'j' + prev_id;
     any_all.id = any_all.name;
     any_all_container.appendChild(any_all);
@@ -104,6 +118,7 @@ function custom_search_open_paren() {
     YAHOO.util.Dom.setStyle(row, 'margin-left', new_margin + 'em');
     YAHOO.util.Dom.removeClass('cp_container', 'bz_default_hidden');
 
+    cs_reconfigure(any_all_container);
     fix_query_string(any_all_container);
 }
 
@@ -112,7 +127,7 @@ function custom_search_close_paren() {
     
     // We need to up the new row's id by one more, because we're going
     // to insert a "CP" before it.
-    var id = _cs_fix_ids(new_row);
+    var id = _cs_fix_row_ids(new_row);
 
     var margin = YAHOO.util.Dom.getStyle(new_row, 'margin-left');
     var int_match = margin.match(/\d+/);
@@ -122,7 +137,7 @@ function custom_search_close_paren() {
     var paren_row = new_row.cloneNode(false);
     paren_row.id = null;
     paren_row.innerHTML = ')<input type="hidden" name="f' + (id - 1)
-                        + '" value="CP">';
+                        + '" id="f' + (id - 1) + '" value="CP">';
   
     new_row.parentNode.insertBefore(paren_row, new_row);
 
@@ -130,6 +145,7 @@ function custom_search_close_paren() {
         YAHOO.util.Dom.addClass('cp_container', 'bz_default_hidden');
     }
 
+    cs_reconfigure(new_row);
     fix_query_string(new_row);
 }
 
@@ -172,19 +188,17 @@ function redirect_html4_browsers() {
     document.location = url;
 }
 
-function _cs_fix_ids(parent, preserve_values) {
+function _cs_fix_row_ids(row, preserve_values) {
     // Update the label of the checkbox.
-    var label = YAHOO.util.Dom.getElementBy(function() { return true },
-                                            'label', parent);
+    var label = YAHOO.util.Dom.getElementBy(function() { return true }, 'label', row);
     var id_match = label.htmlFor.match(/\d+$/);
     var id = parseInt(id_match[0]) + 1;
     label.htmlFor = label.htmlFor.replace(/\d+$/, id);
 
-    // Sets all the inputs in the parent back to their default
+    // Sets all the inputs in the row back to their default
     // and fixes their id.
     var fields =
-        YAHOO.util.Dom.getElementsByClassName('custom_search_form_field', null,
-                                              parent);
+        YAHOO.util.Dom.getElementsByClassName('custom_search_form_field', null, row);
     for (var i = 0; i < fields.length; i++) {
         var field = fields[i];
 
@@ -196,15 +210,141 @@ function _cs_fix_ids(parent, preserve_values) {
                 field.value = '';
             }
         }
-        
-        // Update the numeric id for the new row.
+
+        // Update the numeric id for the row.
         field.name = field.name.replace(/\d+$/, id);
         field.id = field.name;
     }
-    
+
     return id;
 }
 
+function _cs_build_structure(form_member) {
+    // build a map of the structure of the custom fields
+    var form = YAHOO.util.Dom.getAncestorByTagName(form_member, 'form');
+    var last_id = _get_last_cs_row_id(form);
+    var structure = [ 'j_top' ];
+    var nested = [ structure ];
+    for (var id = 1; id <= last_id; id++) {
+        var f = form['f' + id];
+        if (!f || !f.parentNode.parentNode) continue;
+
+        if (f.value == 'OP') {
+            var j = [ 'j' + id ];
+            nested[nested.length - 1].push(j);
+            nested.push(j);
+            continue;
+        } else if (f.value == 'CP') {
+            nested.pop();
+            continue;
+        } else {
+            nested[nested.length - 1].push('f' + id);
+        }
+    }
+    return structure;
+}
+
+function cs_reconfigure(form_member) {
+    var structure = _cs_build_structure(form_member);
+    _cs_add_listeners(structure);
+    _cs_trigger_j_listeners(structure);
+    fix_query_string(form_member);
+
+    var j = _cs_get_join(structure, 'f' + _get_last_cs_row_id());
+    document.getElementById('op_button').disabled = document.getElementById(j).value == 'AND_G';
+}
+
+function _cs_add_listeners(parents) {
+    for (var i = 0, l = parents.length; i < l; i++) {
+        if (typeof(parents[i]) == 'object') {
+            // nested
+            _cs_add_listeners(parents[i]);
+        } else if (i == 0) {
+            // joiner
+            YAHOO.util.Event.removeListener(parents[i], 'change', _cs_j_change);
+            YAHOO.util.Event.addListener(parents[i], 'change', _cs_j_change, parents);
+        } else {
+            // field
+            YAHOO.util.Event.removeListener(parents[i], 'change', _cs_f_change);
+            YAHOO.util.Event.addListener(parents[i], 'change', _cs_f_change, parents);
+        }
+    }
+}
+
+function _cs_trigger_j_listeners(fields) {
+    var has_children = false;
+    for (var i = 0, l = fields.length; i < l; i++) {
+        if (typeof(fields[i]) == 'undefined') {
+            continue;
+        } else if (typeof(fields[i]) == 'object') {
+            // nested
+            _cs_trigger_j_listeners(fields[i]);
+            has_children = true;
+        } else if (i == 0) {
+            _cs_j_change(undefined, fields);
+        }
+    }
+    if (has_children) {
+        _cs_remove_and_g(document.getElementById(fields[0]));
+    }
+}
+
+function _cs_get_join(parents, field) {
+    for (var i = 0, l = parents.length; i < l; i++) {
+        if (typeof(parents[i]) == 'object') {
+            // nested
+            var result = _cs_get_join(parents[i], field);
+            if (result) return result;
+        } else if (parents[i] == field) {
+            return parents[0];
+        }
+    }
+    return false;
+}
+
+function _cs_remove_and_g(join_field) {
+    var index = bz_optionIndex(join_field, 'AND_G');
+    join_field.options[index] = null;
+    join_field.options[bz_optionIndex(join_field, 'AND')].innerHTML = cs_and_label;
+    join_field.options[bz_optionIndex(join_field, 'OR')].innerHTML = cs_or_label;
+}
+
+function _cs_j_change(evt, fields, field) {
+    var j = document.getElementById(fields[0]);
+    if (j && j.value == 'AND_G') {
+        for (var i = 1, l = fields.length; i < l; i++) {
+            if (typeof(fields[i]) == 'object') continue;
+            if (!field) {
+                field = document.getElementById(fields[i]).value;
+            } else {
+                document.getElementById(fields[i]).value = field;
+            }
+        }
+        if (evt) {
+            fix_query_string(j);
+        }
+        if ('f' + _get_last_cs_row_id() == fields[fields.length - 1]) {
+            document.getElementById('op_button').style.display = 'none';
+        }
+    } else {
+        document.getElementById('op_button').style.display = '';
+    }
+}
+
+function _cs_f_change(evt, args) {
+    var field = YAHOO.util.Event.getTarget(evt);
+    _cs_j_change(evt, args, field.value);
+}
+
+function _get_last_cs_row_id() {
+    return _cs_get_row_id('custom_search_last_row');
+}
+
+function _cs_get_row_id(row) {
+    var label = YAHOO.util.Dom.getElementBy(function() { return true }, 'label', row);
+    return parseInt(label.htmlFor.match(/\d+$/)[0]);
+}
+
 function _remove_any_all(parent) {
     var any_all = YAHOO.util.Dom.getElementsByClassName(
         ANY_ALL_SELECT_CLASS, null, parent);