fixed validation of the LocalizationPart (#8464)

src/Orchard.Web/Modules/Orchard.Localization/Drivers/LocalizationPartDriver.cs

@@ -14,6 +14,7 @@ namespace Orchard.Localization.Drivers {
         private readonly ICultureManager _cultureManager;
         private readonly ILocalizationService _localizationService;
         private readonly IContentManager _contentManager;
+        private string _selectedLanguage = string.Empty;
 
         public LocalizationPartDriver(ICultureManager cultureManager, ILocalizationService localizationService, IContentManager contentManager) {
             _cultureManager = cultureManager;
@@ -59,12 +60,25 @@ namespace Orchard.Localization.Drivers {
                 RetrieveMissingCultures(masterContentItem.As<LocalizationPart>(), true) :
                 RetrieveMissingCultures(part, part.Culture != null);
 
+            // if localizationpart is present remove it from the list of missingcultures
+            if (part.Culture != null && missingCultures.Contains(part.Culture.Culture)) {
+                missingCultures.Remove(part.Culture.Culture);
+            }
+
+            bool displayLanguageSelection = true;
+            if (string.IsNullOrEmpty(_selectedLanguage)) {
+                if (part.Culture != null && !string.IsNullOrEmpty(part.Culture.Culture)) {
+                    displayLanguageSelection = false;
+                }
+            }
+
             var model = new EditLocalizationViewModel {
                 SelectedCulture = GetCulture(part),
                 MissingCultures = missingCultures,
                 ContentItem = part,
                 MasterContentItem = masterContentItem,
-                ContentLocalizations = new ContentLocalizationsViewModel(part) { Localizations = localizations }
+                ContentLocalizations = new ContentLocalizationsViewModel(part) { Localizations = localizations },
+                DisplayLanguageSelection = displayLanguageSelection
             };
 
             return ContentShape("Parts_Localization_ContentTranslations_Edit",
@@ -73,15 +87,16 @@ namespace Orchard.Localization.Drivers {
 
         protected override DriverResult Editor(LocalizationPart part, IUpdateModel updater, dynamic shapeHelper) {
             var model = new EditLocalizationViewModel();
-            if (updater != null && updater.TryUpdateModel(model, TemplatePrefix, null, null)
-                // GetCulture(part) is checked against null value, because the content
-                // culture has to be set only if it's not set already.
-                && GetCulture(part) == null
+            updater.TryUpdateModel(model, TemplatePrefix, null, null);
+            // GetCulture(part) is checked against null value, because the content
+            // culture has to be set only if it's not set already.
+            if (GetCulture(part) == null
                 // model.SelectedCulture is checked against null value, because the editor
                 // group may not contain LocalizationPart when the content item is saved for
                 // the first time.
                 && !string.IsNullOrEmpty(model.SelectedCulture)) {
                 _localizationService.SetContentCulture(part, model.SelectedCulture);
+                _selectedLanguage = model.SelectedCulture;
             }
 
             return Editor(part, shapeHelper);

src/Orchard.Web/Modules/Orchard.Localization/ViewModels/EditLocalizationViewModel.cs

@@ -8,5 +8,6 @@ namespace Orchard.Localization.ViewModels {
         public IContent ContentItem { get; set; }
         public IContent MasterContentItem { get; set; }
         public ContentLocalizationsViewModel ContentLocalizations { get; set; }
+        public bool DisplayLanguageSelection { get; set; }
     }
 }

src/Orchard.Web/Modules/Orchard.Localization/Views/EditorTemplates/Parts/Localization.ContentTranslations.Edit.cshtml

@@ -7,7 +7,7 @@
 <fieldset class="localization culture-selection">
     <label for="@Html.FieldIdFor(m => m.SelectedCulture)">@T("Content Localization")</label>
     <div>
-        @if (!string.IsNullOrEmpty(Model.SelectedCulture)) {
+        @if ((!string.IsNullOrEmpty(Model.SelectedCulture) && ViewData.ModelState.IsValid) || !Model.DisplayLanguageSelection) {
             @T("This is the <em>{0}</em> variation of the content",
                 Html.Encode(Model.SelectedCulture))
 
@@ -47,7 +47,8 @@
                             Html.FieldIdFor(m => m.SelectedCulture),
                             Html.FieldNameFor(m => m.SelectedCulture),
                             Model.MissingCultures,
-                            Model.SelectedCulture),
+                            Model.SelectedCulture,
+                            !ViewData.ModelState.IsValid),
                         Html.ItemEditLink(masterContent));
             }
             else {
@@ -56,9 +57,10 @@
                             Html.FieldIdFor(m => m.SelectedCulture),
                             Html.FieldNameFor(m => m.SelectedCulture),
                             Model.MissingCultures,
-                            Model.SelectedCulture));
+                            Model.SelectedCulture,
+                            !ViewData.ModelState.IsValid));
             }
-        
+
             if (Model.ContentLocalizations.Localizations.Any()) {
                 <dl class="content-localization">
                     <dt>@T("Other translations:")</dt>
@@ -68,37 +70,48 @@
                             Html.ItemEditLink(c.Culture.Culture, c, new { ReturnUrl = returnUrl }), "localizations");
                         }
                         else {
-                        @Html.UnorderedList(Model.ContentLocalizations.Localizations, (c, i) =>
-                            Html.ItemEditLink(c.Culture.Culture, c), "localizations");
+                            @Html.UnorderedList(Model.ContentLocalizations.Localizations, (c, i) =>
+                                Html.ItemEditLink(c.Culture.Culture, c), "localizations");
                         }
                     </dd>
                 </dl>
             }
         }
-        
+
     </div>
 </fieldset>
 
 
 
 @functions{
-    private IHtmlString BuildSelectedCultureList(string id, string name, IEnumerable<string> siteCultures, string culture) {
+    private IHtmlString BuildSelectedCultureList(string id, string name, IEnumerable<string> siteCultures, string culture, bool addSelectedCulture) {
         TagBuilder selectTag = new TagBuilder("select");
         selectTag.Attributes["id"] = id;
         selectTag.Attributes["name"] = name;
 
+        if (addSelectedCulture) {
+            TagBuilder optionTagCulture = new TagBuilder("option");
+            optionTagCulture.Attributes["data-content-dir"] = CultureInfo.GetCultureInfo(culture).TextInfo.IsRightToLeft ? "rtl" : "ltr";
+            optionTagCulture.Attributes["selected"] = "selected";
+            optionTagCulture.SetInnerText(Html.Encode(culture));
+            selectTag.InnerHtml += optionTagCulture.ToString();
+        }
+
         foreach (var siteCulture in siteCultures) {
             TagBuilder optionTag = new TagBuilder("option");
             optionTag.Attributes["data-content-dir"] = CultureInfo.GetCultureInfo(siteCulture).TextInfo.IsRightToLeft ? "rtl" : "ltr";
 
-            if (string.IsNullOrEmpty(culture)) {
-                if (siteCulture == WorkContext.CurrentSite.SiteCulture) {
-                    optionTag.Attributes["selected"] = "selected";
+            // If the form is in error, the culture remains the one previously selected.
+            if (!addSelectedCulture) {
+                if (string.IsNullOrEmpty(culture)) {
+                    if (siteCulture == WorkContext.CurrentSite.SiteCulture) {
+                        optionTag.Attributes["selected"] = "selected";
+                    }
                 }
-            }
-            else {
-                if (siteCulture == culture) {
-                    optionTag.Attributes["selected"] = "selected";
+                else {
+                    if (siteCulture == culture) {
+                        optionTag.Attributes["selected"] = "selected";
+                    }
                 }
             }
             optionTag.SetInnerText(Html.Encode(siteCulture));