Implement Sprint 8: template builder keyboard accessibility (WCAG 2.1 AA)

- 8-A: Keyboard alternative for drag-and-drop field placement
  - Default field items: tabindex/role=button + Enter/Space to emit add-default-field
  - Field type grid buttons: keyboard click (event.detail===0) adds field directly (skips draw mode)
  - builder.vue: addDefaultField() handles keyboard-triggered field insertion + announces via aria-live
- 8-B: Context menu keyboard trigger on placed field areas
  - area.vue: tabindex=0 + areaLabel computed + onAreaKeydown handler
  - ContextMenu key / Shift+F10 synthesizes MouseEvent('contextmenu') at element center
- 8-C: Field settings dropdown focus trap
  - label @focus renders dropdown for keyboard users
  - @keydown.escape.stop closes dropdown
- 8-D: Live region announcements for field add/remove
  - announcePolite() called in addField(), addDefaultField() (builder.vue), and removeField() (fields.vue)
  - i18n: field_type_added + field_removed keys added in all 7 languages (en/es/it/pt/fr/de/nl)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/javascript/template_builder/area.vue

@@ -3,9 +3,12 @@
     class="absolute overflow-visible group field-area-container"
     :style="positionStyle"
     :class="{ 'z-[1]': isMoved || isDragged }"
+    tabindex="0"
+    :aria-label="areaLabel"
     @pointerdown.stop
     @mousedown="startMouseMove"
     @touchstart="startTouchDrag"
+    @keydown="onAreaKeydown"
   >
     <div
       v-if="isSelected || isDraw || isInMultiSelection"
@@ -602,6 +605,12 @@ export default {
     defaultName () {
       return this.buildDefaultName(this.field)
     },
+    areaLabel () {
+      const typeName = this.fieldNames[this.field.type] || this.field.type
+      const name = (this.defaultField ? (this.defaultField.title || this.field.title || this.field.name) : this.field.name) || this.defaultName
+
+      return `${typeName}: ${name}`
+    },
     fontClasses () {
       if (!this.field.preferences) {
         return { 'items-center': true }
@@ -709,6 +718,22 @@ export default {
   },
   methods: {
     buildDefaultName: Field.methods.buildDefaultName,
+    onAreaKeydown (event) {
+      if (event.key === 'ContextMenu' || (event.shiftKey && event.key === 'F10')) {
+        event.preventDefault()
+        event.stopPropagation()
+
+        const rect = this.$el.getBoundingClientRect()
+        const contextEvent = new MouseEvent('contextmenu', {
+          bubbles: true,
+          cancelable: true,
+          clientX: Math.round(rect.left + rect.width / 2),
+          clientY: Math.round(rect.top + rect.height / 2)
+        })
+
+        this.$el.dispatchEvent(contextEvent)
+      }
+    },
     closeDropdown () {
       this.$el.getRootNode().activeElement.blur()
     },

app/javascript/template_builder/builder.vue

@@ -496,6 +496,7 @@
             :editable="editable"
             :show-tour-start-form="showTourStartForm"
             @add-field="addField"
+            @add-default-field="addDefaultField"
             @set-draw="[drawField = $event.field, drawOption = $event.option]"
             @select-submitter="selectedSubmitter = $event"
             @set-draw-type="[drawFieldType = $event, showDrawField = true]"
@@ -594,6 +595,7 @@ import { IconPlus, IconUsersPlus, IconDeviceFloppy, IconChevronDown, IconEye, Ic
 import { v4 } from 'uuid'
 import { ref, computed, toRaw } from 'vue'
 import * as i18n from './i18n'
+import { announcePolite } from '../elements/aria_announce'
 
 export default {
   name: 'TemplateBuilder',
@@ -1471,6 +1473,37 @@ export default {
       this.insertField(field)
 
       this.save()
+
+      announcePolite(this.t('field_type_added').replace('{type}', this.t(field.type || type)))
+    },
+    addDefaultField (defaultFieldItem) {
+      const type = defaultFieldItem.type
+      const field = {
+        name: defaultFieldItem.name || '',
+        uuid: v4(),
+        required: type !== 'checkbox',
+        areas: [],
+        submitter_uuid: this.selectedSubmitter.uuid,
+        type
+      }
+
+      if (['select', 'multiple', 'radio'].includes(type)) {
+        field.options = defaultFieldItem.options?.map((o) => ({ value: o.value ?? o, uuid: v4() })) || [{ value: '', uuid: v4() }, { value: '', uuid: v4() }]
+      }
+
+      if (type === 'stamp') {
+        field.readonly = true
+      }
+
+      if (type === 'date') {
+        field.preferences = { format: this.defaultDateFormat }
+      }
+
+      this.insertField(field)
+
+      this.save()
+
+      announcePolite(this.t('field_type_added').replace('{type}', this.t(type)))
     },
     startFieldDraw ({ name, type }) {
       const existingField = this.template.fields?.find((f) => f.submitter_uuid === this.selectedSubmitter.uuid && name && name === f.name)

app/javascript/template_builder/field.vue

@@ -107,12 +107,14 @@
             class="dropdown dropdown-end field-settings-dropdown"
             @mouseenter="renderDropdown = true"
             @touchstart="renderDropdown = true"
+            @keydown.escape.stop="closeDropdown"
           >
             <label
               tabindex="0"
               :title="t('settings')"
               :aria-label="t('settings')"
               class="cursor-pointer text-transparent group-hover:text-base-content"
+              @focus="renderDropdown = true"
             >
               <IconSettings
                 :width="18"

app/javascript/template_builder/fields.vue

@@ -81,9 +81,14 @@
         <div
           :style="{ backgroundColor }"
           draggable="true"
+          tabindex="0"
+          role="button"
+          :aria-label="field.title || field.name"
           class="border border-base-300 rounded relative group mb-2 default-field fields-list-item"
           @dragstart="onDragstart($event, field)"
           @dragend="$emit('drag-end')"
+          @keydown.enter.prevent="$emit('add-default-field', field)"
+          @keydown.space.prevent="$emit('add-default-field', field)"
         >
           <div class="flex items-center justify-between relative cursor-grab">
             <div class="flex items-center p-1 space-x-1">
@@ -213,7 +218,7 @@
         :aria-pressed="drawFieldType === type"
         @dragstart="onDragstart($event, { type: type })"
         @dragend="$emit('drag-end')"
-        @click="['file', 'payment', 'verification', 'kba'].includes(type) ? $emit('add-field', type) : $emit('set-draw-type', type)"
+        @click="onFieldTypeClick($event, type)"
       >
         <div
           aria-hidden="true"
@@ -367,6 +372,7 @@ import FieldSubmitter from './field_submitter'
 import { IconLock, IconCirclePlus, IconInnerShadowTop, IconSparkles } from '@tabler/icons-vue'
 import IconDrag from './icon_drag'
 import { v4 } from 'uuid'
+import { announcePolite } from '../elements/aria_announce'
 
 export default {
   name: 'TemplateFields',
@@ -480,7 +486,7 @@ export default {
       default: false
     }
   },
-  emits: ['add-field', 'set-draw', 'set-draw-type', 'set-draw-custom-field', 'set-drag', 'drag-end', 'scroll-to-area', 'change-submitter', 'set-drag-placeholder', 'select-submitter'],
+  emits: ['add-field', 'add-default-field', 'set-draw', 'set-draw-type', 'set-draw-custom-field', 'set-drag', 'drag-end', 'scroll-to-area', 'change-submitter', 'set-drag-placeholder', 'select-submitter'],
   data () {
     return {
       fieldPagesLoaded: null,
@@ -561,6 +567,13 @@ export default {
     }
   },
   methods: {
+    onFieldTypeClick (event, type) {
+      if (['file', 'payment', 'verification', 'kba'].includes(type) || event.detail === 0) {
+        this.$emit('add-field', type)
+      } else {
+        this.$emit('set-draw-type', type)
+      }
+    },
     onDragstart (event, field) {
       this.removeDragOverlay(event)
 
@@ -799,6 +812,7 @@ export default {
 
       if (save) {
         this.save()
+        announcePolite(this.t('field_removed'))
       }
     },
     removeCustomField (field) {

app/javascript/template_builder/i18n.js

@@ -214,7 +214,9 @@ const en = {
   fields_selected: '{count} Fields Selected',
   field_added: '{count} Field Added',
   fields_added: '{count} Fields Added',
-  field_name: 'Field name'
+  field_name: 'Field name',
+  field_type_added: '{type} field added',
+  field_removed: 'Field removed'
 }
 
 const es = {
@@ -427,7 +429,9 @@ const es = {
   align_bottom: 'Alinear abajo',
   fields_selected: '{count} Campos Seleccionados',
   field_added: '{count} Campo Añadido',
-  fields_added: '{count} Campos Añadidos'
+  fields_added: '{count} Campos Añadidos',
+  field_type_added: 'Campo {type} añadido',
+  field_removed: 'Campo eliminado'
 }
 
 const it = {
@@ -640,7 +644,9 @@ const it = {
   align_bottom: 'Allinea in basso',
   fields_selected: '{count} Campi Selezionati',
   field_added: '{count} Campo Aggiunto',
-  fields_added: '{count} Campi Aggiunti'
+  fields_added: '{count} Campi Aggiunti',
+  field_type_added: 'Campo {type} aggiunto',
+  field_removed: 'Campo rimosso'
 }
 
 const pt = {
@@ -853,7 +859,9 @@ const pt = {
   align_bottom: 'Alinhar à parte inferior',
   fields_selected: '{count} Campos Selecionados',
   field_added: '{count} Campo Adicionado',
-  fields_added: '{count} Campos Adicionados'
+  fields_added: '{count} Campos Adicionados',
+  field_type_added: 'Campo {type} adicionado',
+  field_removed: 'Campo removido'
 }
 
 const fr = {
@@ -1066,7 +1074,9 @@ const fr = {
   align_bottom: 'Aligner en bas',
   fields_selected: '{count} Champs Sélectionnés',
   field_added: '{count} Champ Ajouté',
-  fields_added: '{count} Champs Ajoutés'
+  fields_added: '{count} Champs Ajoutés',
+  field_type_added: 'Champ {type} ajouté',
+  field_removed: 'Champ supprimé'
 }
 
 const de = {
@@ -1279,7 +1289,9 @@ const de = {
   align_bottom: 'Unten ausrichten',
   fields_selected: '{count} Felder Ausgewählt',
   field_added: '{count} Feld Hinzugefügt',
-  fields_added: '{count} Felder Hinzugefügt'
+  fields_added: '{count} Felder Hinzugefügt',
+  field_type_added: 'Feld {type} hinzugefügt',
+  field_removed: 'Feld entfernt'
 }
 
 const nl = {
@@ -1492,7 +1504,9 @@ const nl = {
   align_bottom: 'Onder uitlijnen',
   fields_selected: '{count} Velden Geselecteerd',
   field_added: '{count} Veld Toegevoegd',
-  fields_added: '{count} Velden Toegevoegd'
+  fields_added: '{count} Velden Toegevoegd',
+  field_type_added: 'Veld {type} toegevoegd',
+  field_removed: 'Veld verwijderd'
 }
 
 export { en, es, it, pt, fr, de, nl }