Changed combo-box to number inputs for min, max and step values.

plugins/poll/assets/javascripts/controllers/poll-ui-builder.js.es6

@@ -120,9 +120,20 @@ export default Ember.Controller.extend({
     return output;
   },
 
-  @computed("pollOptionsCount", "isNumber")
-  disableInsert(count, isNumber) {
-    return isNumber ? false : (count < 2);
+  @computed("pollOptionsCount", "isNumber", "pollMin", "pollMax")
+  disableInsert(count, isNumber, pollMin, pollMax) {
+    return (pollMin >= pollMax) || (isNumber ? false : (count < 2));
+  },
+
+  @computed("pollMin", "pollMax")
+  minMaxValueValidation(pollMin, pollMax) {
+    let options = { ok: true };
+
+    if (pollMin >= pollMax) {
+      options = { failed: true, reason: I18n.t("poll.ui_builder.help.invalid_values") };
+    }
+
+    return InputValidation.create(options);
   },
 
   @computed("disableInsert")

plugins/poll/assets/javascripts/discourse/templates/modal/poll-ui-builder.hbs

@@ -11,16 +11,17 @@
     {{#if showMinMax}}
       <div class="input-group">
         <label class="input-group-label">{{i18n 'poll.ui_builder.poll_config.min'}}</label>
-        {{combo-box content=pollMinOptions
+        {{input type='number'
                 value=pollMin
                 valueAttribute="value"
                 class="poll-options-min"}}
+        {{input-tip validation=minMaxValueValidation}}
       </div>
 
 
       <div class="input-group">
         <label class="input-group-label">{{i18n 'poll.ui_builder.poll_config.max'}}</label>
-        {{combo-box content=pollMaxOptions
+        {{input type='number'
                 value=pollMax
                 valueAttribute="value"
                 class="poll-options-max"}}
@@ -29,7 +30,7 @@
       {{#if isNumber}}
         <div class="input-group">
           <label class="input-group-label">{{i18n 'poll.ui_builder.poll_config.step'}}</label>
-          {{combo-box content=pollStepOptions
+          {{input type='number'
                   value=pollStep
                   valueAttribute="value"
                   class="poll-options-step"}}

plugins/poll/config/locales/client.en.yml

@@ -74,6 +74,7 @@ en:
         insert: Insert Poll
         help:
           options_count: Enter at least 2 options
+          invalid_values: Minimum value must be smaller than the maximum value.
         poll_type:
           label: Type
           regular: Single Choice