Add javascript injection with a bridge object to the website

Core/FormBrowser.cs

@@ -4,6 +4,8 @@
 using System.Linq;
 using TweetDick.Configuration;
 using CefSharp;
+using System.IO;
+using System.Text;
 
 namespace TweetDick.Core{
     public partial class FormBrowser : Form{
@@ -14,12 +16,17 @@ private static UserConfig Config{
         }
 
         private readonly ChromiumWebBrowser browser;
+        private readonly TweetDeckBridge bridge;
 
         public FormBrowser(){
             InitializeComponent();
 
+            bridge = new TweetDeckBridge(this);
+
             browser = new ChromiumWebBrowser("https://tweetdeck.twitter.com/");
             browser.LoadingStateChanged += Browser_LoadingStateChanged;
+            browser.RegisterJsObject("$TD",bridge);
+
             Controls.Add(browser);
         }
 
@@ -54,6 +61,9 @@ private void Browser_LoadingStateChanged(object sender, LoadingStateChangedEvent
             if (!e.IsLoading){
                 Invoke(new Action(SetupWindow));
                 browser.LoadingStateChanged -= Browser_LoadingStateChanged;
+
+                string js = File.ReadAllText("code.js",Encoding.UTF8);
+                browser.ExecuteScriptAsync(js);
             }
         }
 

Core/TweetDeckBridge.cs

@@ -0,0 +1,14 @@
+using System.Windows.Forms;
+namespace TweetDick.Core{
+    class TweetDeckBridge{
+        private readonly FormBrowser form;
+
+        public TweetDeckBridge(FormBrowser form){
+            this.form = form;
+        }
+
+        public void Log(string data){
+            System.Diagnostics.Debug.WriteLine(data);
+        }
+    }
+}

Resources/code.js

@@ -0,0 +1,31 @@
+(function($,$TD){
+  //
+  // Variable: Says whether TweetDick events was initialized.
+  //
+  var isInitialized = false;
+  
+  //
+  // Function: Initializes TweetDick events. Called after the website app is loaded.
+  //
+  var initializeTweetDick = function(){
+    isInitialized = true;
+  };
+  
+  //
+  // Block: Observe the app <div> element and initialize TweetDick whenever possible.
+  //
+  var app = $("body").children(".js-app");
+  
+  new MutationObserver(function(mutations){
+    if (mutations.some(mutation => mutation.attributeName === "class")){
+      if (isInitialized && app.hasClass("is-hidden")){
+        isInitialized = false;
+      }
+      else if (!isInitialized && !app.hasClass("is-hidden")){
+        initializeTweetDick();
+      }
+    }
+  }).observe(app[0],{
+    attributes: true
+  });
+})($,$TD);

TweetDick.csproj

@@ -97,6 +97,7 @@
     <Compile Include="Core\FormBackgroundWork.Designer.cs">
       <DependentUpon>FormBackgroundWork.cs</DependentUpon>
     </Compile>
+    <Compile Include="Core\TweetDeckBridge.cs" />
     <Compile Include="Migration\FormMigrationQuestion.cs">
       <SubType>Form</SubType>
     </Compile>
@@ -146,6 +147,12 @@
       <EmbedInteropTypes>True</EmbedInteropTypes>
     </COMReference>
   </ItemGroup>
+  <ItemGroup>
+    <ContentWithTargetPath Include="Resources\code.js">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+      <TargetPath>code.js</TargetPath>
+    </ContentWithTargetPath>
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <Import Project="packages\cef.redist.x86.3.2526.1362\build\cef.redist.x86.targets" Condition="Exists('packages\cef.redist.x86.3.2526.1362\build\cef.redist.x86.targets')" />
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">