add defaultcheck input type

data/presets/forms/bridge.json

@@ -1,4 +1,4 @@
 {
     "key": "bridge",
-    "type": "check"
-}
+    "type": "defaultcheck"
+}

data/presets/forms/tunnel.json

@@ -1,4 +1,4 @@
 {
     "key": "tunnel",
-    "type": "check"
-}
+    "type": "defaultcheck"
+}

js/id/ui/preset.js

@@ -1,14 +1,10 @@
 iD.ui.preset = function(context) {
     var event = d3.dispatch('change', 'setTags', 'close'),
         entity,
-        type,
-        hidden,
-        sections,
         tags,
         keys,
         preset;
 
-    // generate form fields for a given field.
     function input(d) {
         var i = iD.ui.preset[d.type](d, context)
             .on('close', event.close)
@@ -30,7 +26,7 @@ iD.ui.preset = function(context) {
         selection.html('');
         keys = [];
 
-        sections = selection.selectAll('div.preset-section')
+        var sections = selection.selectAll('div.preset-section')
             .data(preset.form)
             .enter()
             .append('div')
@@ -72,7 +68,6 @@ iD.ui.preset = function(context) {
     presets.entity = function(_) {
         if (!arguments.length) return entity;
         entity = _;
-        type = entity.type === 'node' ? entity.type : entity.geometry();
         return presets;
     };
 

js/id/ui/preset/defaultcheck.js

@@ -0,0 +1,23 @@
+iD.ui.preset.defaultcheck = function(form) {
+
+    var event = d3.dispatch('change', 'close'),
+        input;
+
+    var check = function(selection) {
+
+        input = selection.append('input')
+            .attr('type', 'checkbox')
+            .attr('id', 'input-' + form.key)
+            .on('change', function() {
+                var t = {};
+                t[form.key] = input.property('checked') ? form.value || 'yes' : undefined;
+                event.change(t);
+            });
+    };
+
+    check.tags = function(tags) {
+        input.property('checked', !!tags[form.key] && tags[form.key] !== 'no');
+    };
+
+    return d3.rebind(check, event, 'on');
+};