From 404201d876ee2f50e0b7fdf8b6dd733ef9f55fe2 Mon Sep 17 00:00:00 2001
From: Andrew Hoefling <andrew@hoeflingsoftware.com>
Date: Fri, 17 Nov 2017 22:25:55 +0000
Subject: [PATCH] Added display alert to clean up code for DisplayAlerts from
 the Platform class

---
 Ooui.Forms/DisplayAlert.cs   | 106 +++++++++++++++++++++++++++++++++++
 Ooui.Forms/Ooui.Forms.csproj |   1 -
 Ooui.Forms/Platform.cs       |  73 ++----------------------
 3 files changed, 110 insertions(+), 70 deletions(-)
 create mode 100644 Ooui.Forms/DisplayAlert.cs

diff --git a/Ooui.Forms/DisplayAlert.cs b/Ooui.Forms/DisplayAlert.cs
new file mode 100644
index 0000000..dc04911
--- /dev/null
+++ b/Ooui.Forms/DisplayAlert.cs
@@ -0,0 +1,106 @@
+using System.Web;
+using Xamarin.Forms.Internals;
+
+namespace Ooui.Forms
+{
+    public class DisplayAlert
+    {
+        private readonly Button _closeButton;
+        private readonly Button _acceptButton;
+        private readonly Button _cancelButton;
+
+        public DisplayAlert(AlertArguments arguments)
+        {
+            Element = new Div
+            {
+                ClassName = "modal-dialog"
+            };
+
+            var content = new Div
+            {
+                ClassName = "modal-content"
+            };
+
+            var header = new Div
+            {
+                ClassName = "modal-header"
+            };
+
+            _closeButton = new Button
+            {
+                ClassName = "close"
+            };
+
+            _closeButton.AppendChild(new Span(HttpUtility.HtmlDecode("&times;")));
+
+            var h4 = new Heading(4)
+            {
+                Text = arguments.Title
+            };
+
+            header.AppendChild(_closeButton);
+            header.AppendChild(h4);
+
+            content.AppendChild(header);
+            content.AppendChild(new Div()
+            {
+                ClassName = "modal-body",
+                Text = arguments.Message
+            });
+
+            if (!string.IsNullOrEmpty(arguments.Cancel))
+            {
+                var footer = new Div()
+                {
+                    ClassName = "modal-footer"
+                };
+
+                _cancelButton = new Button(arguments.Cancel)
+                {
+                    ClassName = "btn btn-default"
+                };
+
+                footer.AppendChild(_cancelButton);
+
+                if (!string.IsNullOrEmpty(arguments.Accept))
+                {
+                    _acceptButton = new Button(arguments.Accept)
+                    {
+                        ClassName = "btn btn-default"
+                    };
+                    
+                    footer.AppendChild(_acceptButton);
+                }
+
+                content.AppendChild(footer);
+            }
+
+            Element.AppendChild(content);
+        }
+        
+        public event TargetEventHandler Clicked
+        {
+            add
+            {
+                _closeButton.Clicked += value;
+
+                if(_cancelButton != null)
+                    _cancelButton.Clicked += value;
+
+                if(_acceptButton != null)
+                    _acceptButton.Clicked += value;
+            }
+            remove
+            {
+                _closeButton.Clicked -= value;
+
+                if (_cancelButton != null)
+                    _cancelButton.Clicked -= value;
+
+                if (_acceptButton != null)
+                    _acceptButton.Clicked -= value;
+            }
+        }
+        public Element Element { get; private set; } 
+    }
+}
diff --git a/Ooui.Forms/Ooui.Forms.csproj b/Ooui.Forms/Ooui.Forms.csproj
index 5c0c488..e081c10 100644
--- a/Ooui.Forms/Ooui.Forms.csproj
+++ b/Ooui.Forms/Ooui.Forms.csproj
@@ -15,7 +15,6 @@
     <PackageReference Include="Xamarin.Forms" Version="2.4.0.38779" />
   </ItemGroup>
   <ItemGroup>
-    <Folder Include="Renderers\" />
     <Folder Include="Extensions\" />
   </ItemGroup>
   <ItemGroup>
diff --git a/Ooui.Forms/Platform.cs b/Ooui.Forms/Platform.cs
index 9fd5be1..5295ac6 100644
--- a/Ooui.Forms/Platform.cs
+++ b/Ooui.Forms/Platform.cs
@@ -35,79 +35,14 @@ namespace Ooui.Forms
 
             MessagingCenter.Subscribe(this, Page.AlertSignalName, (Page sender, AlertArguments arguments) =>
             {
-                var alert = new Div
-                {
-                    ClassName = "modal-dialog"
-                };
+                var alert = new DisplayAlert(arguments);
+                alert.Clicked += CloseAlert;
 
-                var content = new Div
-                {
-                    ClassName = "modal-content"
-                };
-
-                var header = new Div
-                {
-                    ClassName = "modal-header"
-                };
-
-                var closeButton = new Button
-                {
-                    ClassName = "close"
-                };
-
-                closeButton.AppendChild(new Span(HttpUtility.HtmlDecode("&times;")));
-                closeButton.Clicked += CloseAlert;
-
-                var h4 = new Heading(4)
-                {
-                    Text = arguments.Title
-                };
-
-                header.AppendChild(closeButton);
-                header.AppendChild(h4);
-
-                content.AppendChild(header);
-                content.AppendChild(new Div()
-                {
-                    ClassName = "modal-body",
-                    Text = arguments.Message
-                });
-
-                if (!string.IsNullOrEmpty(arguments.Cancel))
-                {
-                    var footer = new Div()
-                    {
-                        ClassName = "modal-footer"
-                    };
-
-                    var cancel = new Button(arguments.Cancel)
-                    {
-                        ClassName = "btn btn-default"
-                    };
-                    cancel.Clicked += CloseAlert;
-
-                    footer.AppendChild(cancel);
-
-                    if (!string.IsNullOrEmpty(arguments.Accept))
-                    {
-                        var accept = new Button(arguments.Accept)
-                        {
-                            ClassName = "btn btn-default"
-                        };
-                        accept.Clicked += CloseAlert;
-
-                        footer.AppendChild(accept);
-                    }
-
-                    content.AppendChild(footer);
-                }
-
-                alert.AppendChild(content);
-                _renderer.AppendChild(alert);
+                _renderer.AppendChild(alert.Element);
 
                 void CloseAlert(object s, EventArgs e)
                 {
-                    _renderer.RemoveChild(alert);
+                    _renderer.RemoveChild(alert.Element);
                 }
             });
         }