Improved messages delete

Closes #620

app/js/controllers.js

@@ -1239,9 +1239,13 @@ angular.module('myApp.controllers', ['myApp.i18n'])
         angular.forEach($scope.selectedMsgs, function (t, messageID) {
           selectedMessageIDs.push(messageID);
         });
-        AppMessagesManager.deleteMessages(selectedMessageIDs).then(function () {
-          selectedCancel();
-        });
+        if (selectedMessageIDs.length) {
+          ErrorService.confirm({type: 'MESSAGES_DELETE', count: selectedMessageIDs.length}).then(function () {
+            AppMessagesManager.deleteMessages(selectedMessageIDs).then(function () {
+              selectedCancel();
+            });
+          });
+        }
       }
     }
 

app/js/locales/en-us.json

@@ -132,6 +132,7 @@
 	"confirm_modal_clipboard_file_send": "Are you sure to send file(s) from clipboard?",
 	"confirm_modal_clipboard_X_files_send": "{'one': 'Are you sure to send file from clipboard?', 'other': 'Are you sure to send {} files from clipboard?'}",
 	"confirm_modal_message_delete": "Are you sure you want to delete the message?",
+	"confirm_modal_X_messages_delete": "{'one': 'Are you sure you want to delete the message?', 'other': 'Are you sure you want to delete {} messages?'}",
 	"confirm_modal_photo_delete": "Are you sure you want to delete the photo?",
 	"confirm_modal_contacts_import": "Telegram will now sync your contacts in order to find your friends.",
 	"confirm_modal_login_phone_correct": "Is this phone number correct?",
@@ -149,6 +150,7 @@
 	"confirm_modal_clipboard_files_send_submit": "Send",
 	"confirm_modal_clipboard_file_send_submit": "Send",
 	"confirm_modal_message_delete_submit": "Delete",
+	"confirm_modal_messages_delete_submit": "Delete",
 	"confirm_modal_photo_delete_submit": "Delete",
 	"confirm_modal_forward_message_submit": "Forward message",
 	"confirm_modal_share_photo_submit": "Forward photo",

app/partials/desktop/confirm_modal.html

@@ -15,6 +15,11 @@
       </span>
       <span ng-switch-when="FILE_CLIPBOARD_PASTE" my-i18n="confirm_modal_clipboard_file_send"></span>
       <span ng-switch-when="MESSAGE_DELETE" my-i18n="confirm_modal_message_delete"></span>
+      <span ng-switch-when="MESSAGES_DELETE">
+        <ng-pluralize count="count"
+                     when="confirm_modal_X_messages_delete">
+        </ng-pluralize>
+      </span>
       <span ng-switch-when="PHOTO_DELETE" my-i18n="confirm_modal_photo_delete"></span>
       <span ng-switch-when="CONTACTS_IMPORT_PERFORM" my-i18n="confirm_modal_contacts_import"></span>
       <div ng-switch-when="LOGIN_PHONE_CORRECT">
@@ -56,6 +61,7 @@
       <span ng-switch-when="FILES_CLIPBOARD_PASTE" my-i18n="confirm_modal_clipboard_files_send_submit"></span>
       <span ng-switch-when="FILE_CLIPBOARD_PASTE" my-i18n="confirm_modal_clipboard_file_send_submit"></span>
       <span ng-switch-when="MESSAGE_DELETE" my-i18n="confirm_modal_message_delete_submit"></span>
+      <span ng-switch-when="MESSAGES_DELETE" my-i18n="confirm_modal_messages_delete_submit"></span>
       <span ng-switch-when="PHOTO_DELETE" my-i18n="confirm_modal_photo_delete_submit"></span>
       <span ng-switch-when="FORWARD_PEER" my-i18n="confirm_modal_forward_message_submit"></span>
       <span ng-switch-when="PHOTO_SHARE_PEER" my-i18n="confirm_modal_share_photo_submit"></span>