Improve video player startup and ensure it's always closed with the main app

Closes #154

Configuration/UserConfig.cs

@@ -61,6 +61,7 @@ namespace TweetDuck.Configuration{
         public bool SwitchAccountSelectors { get; set; } = true;
         public bool BestImageQuality       { get; set; } = true;
         public bool EnableSpellCheck       { get; set; } = false;
+        public int VideoPlayerVolume       { get; set; } = 50;
         private int _zoomLevel                           = 100;
         private bool _muteNotifications;
         

Core/Bridge/TweetDeckBridge.cs

@@ -114,6 +114,10 @@ namespace TweetDuck.Core.Bridge{
             form.InvokeAsyncSafe(() => form.OnTweetScreenshotReady(html, width, height));
         }
 
+        public void PlayVideo(string url){
+            form.InvokeAsyncSafe(() => form.PlayVideo(url));
+        }
+
         public void FixClipboard(){
             form.InvokeAsyncSafe(WindowsUtils.ClipboardStripHtmlStyles);
         }

Core/Controls/FlatProgressBar.cs

@@ -23,7 +23,7 @@ namespace TweetDuck.Core.Controls{
 
             Rectangle rect = e.ClipRectangle;
             rect.Width = (int)(rect.Width*((double)Value/Maximum));
-            e.Graphics.FillRectangle(brush,rect);
+            e.Graphics.FillRectangle(brush, rect);
         }
 
         protected override void Dispose(bool disposing){

Core/FormBrowser.cs

@@ -2,7 +2,6 @@
 using CefSharp.WinForms;
 using System;
 using System.Drawing;
-using System.Linq;
 using System.Windows.Forms;
 using TweetDuck.Configuration;
 using TweetDuck.Core.Bridge;
@@ -12,6 +11,7 @@ using TweetDuck.Core.Handling.General;
 using TweetDuck.Core.Notification;
 using TweetDuck.Core.Notification.Screenshot;
 using TweetDuck.Core.Other;
+using TweetDuck.Core.Other.Management;
 using TweetDuck.Core.Other.Settings;
 using TweetDuck.Core.Utils;
 using TweetDuck.Plugins;
@@ -58,15 +58,18 @@ namespace TweetDuck.Core{
 
         private TweetScreenshotManager notificationScreenshotManager;
         private SoundNotification soundNotification;
+        private VideoPlayer videoPlayer;
 
-        public FormBrowser(PluginManager pluginManager, UpdaterSettings updaterSettings){
+        public FormBrowser(UpdaterSettings updaterSettings){
             InitializeComponent();
 
             Text = Program.BrandName;
 
-            this.plugins = pluginManager;
+            this.plugins = new PluginManager(Program.PluginPath, Program.PluginConfigFilePath);
             this.plugins.Reloaded += plugins_Reloaded;
+            this.plugins.Executed += plugins_Executed;
             this.plugins.PluginChangedState += plugins_PluginChangedState;
+            this.plugins.Reload();
 
             this.contextMenu = ContextMenuBrowser.CreateMenu(this);
             this.memoryUsageTracker = new MemoryUsageTracker("TDGF_tryRunCleanup");
@@ -114,6 +117,7 @@ namespace TweetDuck.Core{
 
                 notificationScreenshotManager?.Dispose();
                 soundNotification?.Dispose();
+                videoPlayer?.Dispose();
             };
 
             this.trayIcon.ClickRestore += trayIcon_ClickRestore;
@@ -132,16 +136,6 @@ namespace TweetDuck.Core{
             RestoreWindow();
         }
 
-        private bool TryBringToFront<T>() where T : Form{
-            T form = Application.OpenForms.OfType<T>().FirstOrDefault();
-
-            if (form != null){
-                form.BringToFront();
-                return true;
-            }
-            else return false;
-        }
-
         private void ShowChildForm(Form form){
             form.VisibleChanged += (sender, args) => form.MoveToCenter(this);
             form.Show(this);
@@ -207,12 +201,7 @@ namespace TweetDuck.Core{
                 TweetDeckBridge.RestoreSessionData(e.Frame);
                 ScriptLoader.ExecuteFile(e.Frame, "code.js");
                 ReinjectCustomCSS(Config.CustomBrowserCSS);
-
-                if (plugins.HasAnyPlugin(PluginEnvironment.Browser)){
-                    ScriptLoader.ExecuteFile(e.Frame, PluginManager.PluginBrowserScriptFile);
-                    ScriptLoader.ExecuteFile(e.Frame, PluginManager.PluginGlobalScriptFile);
-                    plugins.ExecutePlugins(e.Frame, PluginEnvironment.Browser, true);
-                }
+                plugins.ExecutePlugins(e.Frame, PluginEnvironment.Browser);
 
                 TweetDeckBridge.ResetStaticProperties();
 
@@ -328,7 +317,19 @@ namespace TweetDuck.Core{
         }
         
         private void plugins_Reloaded(object sender, PluginErrorEventArgs e){
-            ReloadToTweetDeck();
+            if (e.HasErrors){
+                FormMessage.Error("Error Loading Plugins", "The following plugins will not be available until the issues are resolved:\n\n"+string.Join("\n\n", e.Errors), FormMessage.OK);
+            }
+
+            if (isLoaded){
+                ReloadToTweetDeck();
+            }
+        }
+        
+        private static void plugins_Executed(object sender, PluginErrorEventArgs e){
+            if (e.HasErrors){
+                FormMessage.Error("Error Executing Plugins", "Failed to execute the following plugins:\n\n"+string.Join("\n\n", e.Errors), FormMessage.OK);
+            }
         }
 
         private void plugins_PluginChangedState(object sender, PluginChangedStateEventArgs e){
@@ -337,11 +338,7 @@ namespace TweetDuck.Core{
 
         private void updates_UpdateAccepted(object sender, UpdateAcceptedEventArgs e){
             this.InvokeAsyncSafe(() => {
-                foreach(Form form in Application.OpenForms.Cast<Form>().Reverse()){
-                    if (form is FormSettings || form is FormPlugins || form is FormAbout){
-                        form.Close();
-                    }
-                }
+                FormManager.CloseAllDialogs();
             
                 updates.BeginUpdateDownload(this, e.UpdateInfo, update => {
                     if (update.DownloadStatus == UpdateDownloadStatus.Done){
@@ -392,12 +389,28 @@ namespace TweetDuck.Core{
                         BrowserProcesses.Link(m.LParam.ToInt32(), processId);
                     }
 
+                    return;
+                }
+                else if (m.Msg == Program.VideoPlayerMessage){
+                    int volume = m.WParam.ToInt32();
+
+                    if (Handle == m.LParam && volume != Config.VideoPlayerVolume){
+                        Config.VideoPlayerVolume = volume;
+                        Config.Save();
+                    }
+
                     return;
                 }
             }
             
             if (isBrowserReady && m.Msg == NativeMethods.WM_PARENTNOTIFY && (m.WParam.ToInt32() & 0xFFFF) == NativeMethods.WM_XBUTTONDOWN){
-                browser.ExecuteScriptAsync("TDGF_onMouseClickExtra", (m.WParam.ToInt32() >> 16) & 0xFFFF);
+                if (videoPlayer != null && videoPlayer.Running){
+                    videoPlayer.Close();
+                }
+                else{
+                    browser.ExecuteScriptAsync("TDGF_onMouseClickExtra", (m.WParam.ToInt32() >> 16) & 0xFFFF);
+                }
+
                 return;
             }
 
@@ -443,7 +456,7 @@ namespace TweetDuck.Core{
         }
 
         public void OpenSettings(Type startTab){
-            if (!TryBringToFront<FormSettings>()){
+            if (!FormManager.TryBringToFront<FormSettings>()){
                 bool prevEnableUpdateCheck = Config.EnableUpdateCheck;
 
                 FormSettings form = new FormSettings(this, plugins, updates, startTab);
@@ -476,13 +489,13 @@ namespace TweetDuck.Core{
         }
 
         public void OpenAbout(){
-            if (!TryBringToFront<FormAbout>()){
+            if (!FormManager.TryBringToFront<FormAbout>()){
                 ShowChildForm(new FormAbout());
             }
         }
 
         public void OpenPlugins(){
-            if (!TryBringToFront<FormPlugins>()){
+            if (!FormManager.TryBringToFront<FormPlugins>()){
                 ShowChildForm(new FormPlugins(plugins));
             }
         }
@@ -506,6 +519,28 @@ namespace TweetDuck.Core{
             soundNotification.Play(Config.NotificationSoundPath);
         }
 
+        public void PlayVideo(string url){
+            if (string.IsNullOrEmpty(url)){
+                videoPlayer?.Close();
+                return;
+            }
+
+            if (videoPlayer == null){
+                videoPlayer = new VideoPlayer(this);
+
+                videoPlayer.ProcessExited += (sender, args) => {
+                    browser.GetBrowser().GetHost().SendFocusEvent(true);
+                    HideVideoOverlay();
+                };
+            }
+            
+            videoPlayer.Launch(url);
+        }
+
+        public void HideVideoOverlay(){
+            browser.ExecuteScriptAsync("$('#td-video-player-overlay').remove()");
+        }
+
         public void OnTweetScreenshotReady(string html, int width, int height){
             if (notificationScreenshotManager == null){
                 notificationScreenshotManager = new TweetScreenshotManager(this, plugins);

Core/FormManager.cs

@@ -0,0 +1,25 @@
+using System.Linq;
+using System.Windows.Forms;
+using TweetDuck.Core.Other;
+
+namespace TweetDuck.Core{
+    static class FormManager{
+        public static bool TryBringToFront<T>() where T : Form{
+            T form = Application.OpenForms.OfType<T>().FirstOrDefault();
+
+            if (form != null){
+                form.BringToFront();
+                return true;
+            }
+            else return false;
+        }
+
+        public static void CloseAllDialogs(){
+            foreach(Form form in Application.OpenForms.Cast<Form>().Reverse()){
+                if (form is FormSettings || form is FormPlugins || form is FormAbout){
+                    form.Close();
+                }
+            }
+        }
+    }
+}

Core/Notification/FormNotificationBase.cs

@@ -7,6 +7,7 @@ using TweetDuck.Configuration;
 using TweetDuck.Core.Controls;
 using TweetDuck.Core.Handling;
 using TweetDuck.Core.Handling.General;
+using TweetDuck.Core.Other.Management;
 using TweetDuck.Core.Utils;
 
 namespace TweetDuck.Core.Notification{

Core/Notification/FormNotificationMain.cs

@@ -17,10 +17,7 @@ namespace TweetDuck.Core.Notification{
         private const int TimerBarHeight = 4;
 
         private static readonly string NotificationScriptIdentifier = ScriptLoader.GetRootIdentifier(NotificationScriptFile);
-        private static readonly string PluginScriptIdentifier = ScriptLoader.GetRootIdentifier(PluginManager.PluginNotificationScriptFile);
-
         private static readonly string NotificationJS = ScriptLoader.LoadResource(NotificationScriptFile);
-        private static readonly string PluginJS = ScriptLoader.LoadResource(PluginManager.PluginNotificationScriptFile);
         
         private readonly PluginManager plugins;
 
@@ -169,12 +166,7 @@ namespace TweetDuck.Core.Notification{
             if (e.Frame.IsMain && NotificationJS != null && browser.Address != "about:blank"){
                 e.Frame.ExecuteJavaScriptAsync(PropertyBridge.GenerateScript(PropertyBridge.Environment.Notification));
                 ScriptLoader.ExecuteScript(e.Frame, NotificationJS, NotificationScriptIdentifier);
-
-                if (plugins.HasAnyPlugin(PluginEnvironment.Notification)){
-                    ScriptLoader.ExecuteScript(e.Frame, PluginJS, PluginScriptIdentifier);
-                    ScriptLoader.ExecuteFile(e.Frame, PluginManager.PluginGlobalScriptFile);
-                    plugins.ExecutePlugins(e.Frame, PluginEnvironment.Notification, false);
-                }
+                plugins.ExecutePlugins(e.Frame, PluginEnvironment.Notification);
             }
         }
 

Core/Other/Management/BrowserProcesses.cs

@@ -1,8 +1,9 @@
 using System.Collections.Generic;
 using System.Diagnostics;
 using CefSharp;
+using TweetDuck.Core.Utils;
 
-namespace TweetDuck.Core.Utils{
+namespace TweetDuck.Core.Other.Management{
     static class BrowserProcesses{
         private static readonly Dictionary<int, int> PIDs = new Dictionary<int, int>();
 

Core/Other/Management/MemoryUsageTracker.cs

@@ -5,7 +5,7 @@ using System.Windows.Forms;
 using CefSharp;
 using Timer = System.Timers.Timer;
 
-namespace TweetDuck.Core.Utils{
+namespace TweetDuck.Core.Other.Management{
     sealed class MemoryUsageTracker : IDisposable{
         private const int IntervalMemoryCheck = 60000*30; // 30 minutes
         private const int IntervalCleanupAttempt = 60000*5; // 5 minutes

Core/Other/Management/VideoPlayer.cs

@@ -0,0 +1,114 @@
+using System;
+using System.Diagnostics;
+using System.IO;
+using System.Windows.Forms;
+using TweetDuck.Core.Controls;
+using TweetDuck.Core.Utils;
+
+namespace TweetDuck.Core.Other.Management{
+    sealed class VideoPlayer : IDisposable{
+        private readonly string PlayerExe = Path.Combine(Program.ProgramPath, "TweetDuck.Video.exe");
+
+        public bool Running{
+            get{
+                if (currentProcess == null){
+                    return false;
+                }
+
+                currentProcess.Refresh();
+                return !currentProcess.HasExited;
+            }
+        }
+
+        public event EventHandler ProcessExited;
+
+        private readonly Form owner;
+        private Process currentProcess;
+        private string lastUrl;
+
+        public VideoPlayer(Form owner){
+            this.owner = owner;
+            this.owner.FormClosing += owner_FormClosing;
+        }
+
+        public void Launch(string url){
+            Close();
+
+            lastUrl = url;
+
+            try{
+                if ((currentProcess = Process.Start(new ProcessStartInfo{
+                    FileName = PlayerExe,
+                    Arguments = $"{owner.Handle} {Program.UserConfig.VideoPlayerVolume} \"{url}\"",
+                    UseShellExecute = false,
+                    RedirectStandardOutput = true
+                })) != null){
+                    currentProcess.EnableRaisingEvents = true;
+                    currentProcess.Exited += process_Exited;
+
+                    #if DEBUG
+                    currentProcess.BeginOutputReadLine();
+                    currentProcess.OutputDataReceived += (sender, args) => Debug.WriteLine("VideoPlayer: "+args.Data);
+                    #endif
+                }
+            }catch(Exception e){
+                Program.Reporter.HandleException("Video Playback Error", "Error launching video player.", true, e);
+            }
+        }
+
+        public void Close(){
+            if (currentProcess != null){
+                currentProcess.Exited -= process_Exited;
+
+                try{
+                    currentProcess.Kill();
+                }catch{
+                    // kill me instead then
+                }
+
+                currentProcess.Dispose();
+                currentProcess = null;
+
+                owner.InvokeAsyncSafe(TriggerProcessExitEventUnsafe);
+            }
+        }
+
+        public void Dispose(){
+            ProcessExited = null;
+            Close();
+        }
+
+        private void owner_FormClosing(object sender, FormClosingEventArgs e){
+            if (currentProcess != null){
+                currentProcess.Exited -= process_Exited;
+            }
+        }
+
+        private void process_Exited(object sender, EventArgs e){
+            switch(currentProcess.ExitCode){
+                case 3: // CODE_LAUNCH_FAIL
+                    if (FormMessage.Error("Video Playback Error", "Error launching video player, this may be caused by missing Windows Media Player. Do you want to open the video in a browser?", FormMessage.Yes, FormMessage.No)){
+                        BrowserUtils.OpenExternalBrowser(lastUrl);
+                    }
+
+                    break;
+
+                case 4: // CODE_MEDIA_ERROR
+                    if (FormMessage.Error("Video Playback Error", "The video could not be loaded, most likely due to unknown format. Do you want to open the video in a browser?", FormMessage.Yes, FormMessage.No)){
+                        BrowserUtils.OpenExternalBrowser(lastUrl);
+                    }
+
+                    break;
+            }
+
+            currentProcess.Dispose();
+            currentProcess = null;
+            
+            owner.InvokeAsyncSafe(TriggerProcessExitEventUnsafe);
+        }
+
+        private void TriggerProcessExitEventUnsafe(){
+            ProcessExited?.Invoke(this, new EventArgs());
+        }
+    }
+}

Core/Other/Settings/TabSettingsAdvanced.cs

@@ -87,7 +87,7 @@ namespace TweetDuck.Core.Other.Settings{
             };
 
             form.FormClosed += (sender2, args2) => {
-                NativeMethods.SetFormDisabled(ParentForm, false);
+                RestoreParentForm();
 
                 if (form.DialogResult == DialogResult.OK){
                     Config.CustomCefArgs = form.CefArgs;
@@ -109,7 +109,7 @@ namespace TweetDuck.Core.Other.Settings{
             };
 
             form.FormClosed += (sender2, args2) => {
-                NativeMethods.SetFormDisabled(ParentForm, false);
+                RestoreParentForm();
 
                 if (form.DialogResult == DialogResult.OK){
                     Config.CustomBrowserCSS = form.BrowserCSS;
@@ -143,5 +143,11 @@ namespace TweetDuck.Core.Other.Settings{
                 }
             }
         }
+
+        private void RestoreParentForm(){
+            if (ParentForm != null){ // when the parent is closed first, ParentForm is null in FormClosed event
+                NativeMethods.SetFormDisabled(ParentForm, false);
+            }
+        }
     }
 }

Plugins/Enums/PluginEnvironment.cs

@@ -17,7 +17,20 @@ namespace TweetDuck.Plugins.Enums{
             }
         }
 
-        public static string GetScriptFile(this PluginEnvironment environment){
+        public static bool IncludesDisabledPlugins(this PluginEnvironment environment){
+            return environment == PluginEnvironment.Browser;
+        }
+
+        public static string GetScriptIdentifier(this PluginEnvironment environment){
+            switch(environment){
+                case PluginEnvironment.None: return "root:plugins";
+                case PluginEnvironment.Browser: return "root:plugins.browser";
+                case PluginEnvironment.Notification: return "root:plugins.notification";
+                default: return null;
+            }
+        }
+
+        public static string GetPluginScriptFile(this PluginEnvironment environment){
             switch(environment){
                 case PluginEnvironment.Browser: return "browser.js";
                 case PluginEnvironment.Notification: return "notification.js";
@@ -25,7 +38,7 @@ namespace TweetDuck.Plugins.Enums{
             }
         }
 
-        public static string GetScriptVariables(this PluginEnvironment environment){
+        public static string GetPluginScriptVariables(this PluginEnvironment environment){
             switch(environment){
                 case PluginEnvironment.Browser: return "$,$TD,$TDP,TD";
                 case PluginEnvironment.Notification: return "$TD,$TDP";

Plugins/Plugin.cs

@@ -84,7 +84,7 @@ namespace TweetDuck.Plugins{
 
         public string GetScriptPath(PluginEnvironment environment){
             if (Environments.HasFlag(environment)){
-                string file = environment.GetScriptFile();
+                string file = environment.GetPluginScriptFile();
                 return file != null ? Path.Combine(pathRoot, file) : string.Empty;
             }
             else{
@@ -152,7 +152,7 @@ namespace TweetDuck.Plugins{
 
         private static bool LoadEnvironments(string path, Plugin plugin, out string error){
             foreach(string file in Directory.EnumerateFiles(path, "*.js", SearchOption.TopDirectoryOnly).Select(Path.GetFileName)){
-                plugin.Environments |= PluginEnvironmentExtensions.Values.FirstOrDefault(env => file.Equals(env.GetScriptFile(), StringComparison.Ordinal));
+                plugin.Environments |= PluginEnvironmentExtensions.Values.FirstOrDefault(env => file.Equals(env.GetPluginScriptFile(), StringComparison.Ordinal));
             }
 
             if (plugin.Environments == PluginEnvironment.None){

Plugins/PluginManager.cs

@@ -9,12 +9,14 @@ using TweetDuck.Resources;
 
 namespace TweetDuck.Plugins{
     sealed class PluginManager{
-        public const string PluginBrowserScriptFile = "plugins.browser.js";
-        public const string PluginNotificationScriptFile = "plugins.notification.js";
-        public const string PluginGlobalScriptFile = "plugins.js";
-
         private const int InvalidToken = 0;
 
+        private static readonly Dictionary<PluginEnvironment, string> PluginSetupScripts = new Dictionary<PluginEnvironment, string>(4){
+            { PluginEnvironment.None, ScriptLoader.LoadResource("plugins.js") },
+            { PluginEnvironment.Browser, ScriptLoader.LoadResource("plugins.browser.js") },
+            { PluginEnvironment.Notification, ScriptLoader.LoadResource("plugins.notification.js") }
+        };
+
         public string PathOfficialPlugins => Path.Combine(rootPath, "official");
         public string PathCustomPlugins => Path.Combine(rootPath, "user");
 
@@ -97,7 +99,17 @@ namespace TweetDuck.Plugins{
             Reloaded?.Invoke(this, new PluginErrorEventArgs(loadErrors));
         }
 
-        public void ExecutePlugins(IFrame frame, PluginEnvironment environment, bool includeDisabled){
+        public void ExecutePlugins(IFrame frame, PluginEnvironment environment){
+            if (HasAnyPlugin(environment)){
+                ScriptLoader.ExecuteScript(frame, PluginSetupScripts[environment], environment.GetScriptIdentifier());
+                ScriptLoader.ExecuteScript(frame, PluginSetupScripts[PluginEnvironment.None], PluginEnvironment.None.GetScriptIdentifier());
+                ExecutePluginScripts(frame, environment);
+            }
+        }
+
+        private void ExecutePluginScripts(IFrame frame, PluginEnvironment environment){
+            bool includeDisabled = environment.IncludesDisabledPlugins();
+
             if (includeDisabled){
                 ScriptLoader.ExecuteScript(frame, PluginScriptGenerator.GenerateConfig(Config), "gen:pluginconfig");
             }

Plugins/PluginScriptGenerator.cs

@@ -8,7 +8,7 @@ namespace TweetDuck.Plugins{
 
         public static string GeneratePlugin(string pluginIdentifier, string pluginContents, int pluginToken, PluginEnvironment environment){
             return PluginGen
-                .Replace("%params", environment.GetScriptVariables())
+                .Replace("%params", environment.GetPluginScriptVariables())
                 .Replace("%id", pluginIdentifier)
                 .Replace("%token", pluginToken.ToString())
                 .Replace("%contents", pluginContents);

Program.cs

@@ -13,8 +13,6 @@ using TweetDuck.Core.Other;
 using TweetDuck.Core.Other.Settings.Export;
 using TweetDuck.Core.Utils;
 using TweetDuck.Data;
-using TweetDuck.Plugins;
-using TweetDuck.Plugins.Events;
 using TweetDuck.Updates;
 
 namespace TweetDuck{
@@ -22,8 +20,8 @@ namespace TweetDuck{
         public const string BrandName = "TweetDuck";
         public const string Website = "https://tweetduck.chylex.com";
 
-        public const string VersionTag = "1.8.5";
-        public const string VersionFull = "1.8.5.0";
+        public const string VersionTag = "1.8.5.1";
+        public const string VersionFull = "1.8.5.1";
 
         public static readonly Version Version = new Version(VersionTag);
         public static readonly bool IsPortable = File.Exists("makeportable");
@@ -46,6 +44,7 @@ namespace TweetDuck{
 
         public static uint WindowRestoreMessage;
         public static uint SubProcessMessage;
+        public static uint VideoPlayerMessage;
 
         private static readonly LockManager LockManager = new LockManager(Path.Combine(StoragePath, ".lock"));
         private static bool HasCleanedUp;
@@ -73,6 +72,7 @@ namespace TweetDuck{
             
             WindowRestoreMessage = NativeMethods.RegisterWindowMessage("TweetDuckRestore");
             SubProcessMessage = NativeMethods.RegisterWindowMessage("TweetDuckSubProcess");
+            VideoPlayerMessage = NativeMethods.RegisterWindowMessage("TweetDuckVideoPlayer");
 
             if (!WindowsUtils.CheckFolderWritePermission(StoragePath)){
                 FormMessage.Warning("Permission Error", "TweetDuck does not have write permissions to the storage folder: "+StoragePath, FormMessage.OK);
@@ -148,18 +148,13 @@ namespace TweetDuck{
 
             Application.ApplicationExit += (sender, args) => ExitCleanup();
 
-            PluginManager plugins = new PluginManager(PluginPath, PluginConfigFilePath);
-            plugins.Reloaded += plugins_Reloaded;
-            plugins.Executed += plugins_Executed;
-            plugins.Reload();
-
             UpdaterSettings updaterSettings = new UpdaterSettings{
                 AllowPreReleases = Arguments.HasFlag(Arguments.ArgDebugUpdates),
                 DismissedUpdate = UserConfig.DismissedUpdate,
                 InstallerDownloadFolder = InstallerPath
             };
 
-            FormBrowser mainForm = new FormBrowser(plugins, updaterSettings);
+            FormBrowser mainForm = new FormBrowser(updaterSettings);
             Application.Run(mainForm);
 
             if (mainForm.UpdateInstallerPath != null){
@@ -174,18 +169,6 @@ namespace TweetDuck{
             }
         }
 
-        private static void plugins_Reloaded(object sender, PluginErrorEventArgs e){
-            if (e.HasErrors){
-                FormMessage.Error("Error Loading Plugins", "The following plugins will not be available until the issues are resolved:\n\n"+string.Join("\n\n", e.Errors), FormMessage.OK);
-            }
-        }
-
-        private static void plugins_Executed(object sender, PluginErrorEventArgs e){
-            if (e.HasErrors){
-                FormMessage.Error("Error Executing Plugins", "Failed to execute the following plugins:\n\n"+string.Join("\n\n", e.Errors), FormMessage.OK);
-            }
-        }
-
         private static string GetDataStoragePath(){
             string custom = Arguments.GetValue(Arguments.ArgDataFolder, null);
 

Resources/Scripts/code.js

@@ -714,11 +714,12 @@
     addRule(".keyboard-shortcut-list { vertical-align: top; }"); // fix keyboard navigation alignment
     addRule(".account-inline .username { vertical-align: 10%; }"); // move usernames a bit higher
     addRule(".character-count-compose { width: 40px !important; }"); // fix strangely wide character count element
+    addRule(".is-video a:not([href*='youtu']) .icon-bg-dot, .is-gif .icon-bg-dot { color: #9f51cf; }"); // change play icon on mp4s
     
     addRule(".column-nav-link .attribution { position: absolute; }"); // fix cut off account names
     addRule(".txt-base-smallest .sprite-verified-mini { width: 13px !important; height: 13px !important; background-position: -223px -99px !important; }"); // fix cut off badge icon when zoomed in
     
-    addRule(".btn, .mdl, .mdl-content, .app-search-fake, .app-search-input, .popover, .lst-modal, .media-item { border-radius: 1px !important; }"); // square-ify buttons, inputs, dialogs, menus, media previews
+    addRule(".btn, .mdl, .mdl-content, .app-search-fake, .app-search-input, .popover, .lst-modal, .media-item, .tooltip-inner { border-radius: 1px !important; }"); // square-ify buttons, inputs, dialogs, menus, media previews
     addRule(".dropdown-menu, .list-item-last, .quoted-tweet { border-radius: 0 !important; }"); // square-ify dropdowns, quoted tweets, and account selectors
     addRule(".prf-header { border-radius: 0; }"); // fix user account header border
     
@@ -758,8 +759,9 @@
     addRule(".js-column-header .column-header-link { padding: 0; }"); // fix column header tooltip hover box
     addRule(".js-column-header .column-header-link .icon { padding: 9px 4px; width: calc(1em + 8px); height: 100%; box-sizing: border-box; }"); // fix column header tooltip hover box
     
-    addRule(".is-video a:not([href*='youtu']), .is-gif .js-media-gif-container { cursor: alias; }"); // change cursor on unsupported videos
-    addRule(".is-video a:not([href*='youtu']) .icon-bg-dot, .is-gif .icon-bg-dot { color: #bd3d37; }"); // change play icon color on unsupported videos
+    addRule("#td-compose-drawer-pin { margin: 17px 4px 0 0; transition: transform 0.1s ease; fill: #fff; float: right; cursor: pointer; }"); // replace 'stay open' checkbox with a pin icon
+    addRule(".js-docked-compose footer { display: none; }"); // replace 'stay open' checkbox with a pin icon
+    addRule(".compose-content { bottom: 0 !important; }"); // replace 'stay open' checkbox with a pin icon
     
     window.TDGF_reinjectCustomCSS = function(styles){
       $("#tweetduck-custom-css").remove();
@@ -789,20 +791,47 @@
   }
   
   //
-  // Block: Setup unsupported video element hook.
+  // Block: Setup video player hooks.
   //
   (function(){
-    var cancelModal = false;
+    var playVideo = function(url){
+      $('<div id="td-video-player-overlay" class="ovl" style="display:block"></div>').on("click contextmenu", function(){
+        $TD.playVideo(null);
+        $(this).remove();
+      }).appendTo(app);
+      
+      $TD.playVideo(url);
+    };
+    
+    app.delegate(".js-gif-play", "click", function(e){
+      let src = !e.ctrlKey && $(this).closest(".js-media-gif-container").find("video").attr("src");
+      
+      if (src){
+        playVideo(src);
+      }
+      else{
+        let parent = $(e.target).closest(".js-tweet").first();
+        let link = (parent.hasClass("tweet-detail") ? parent.find("a[rel='url']") : parent.find("time").first().children("a")).first();
+        $TD.openBrowser(link.attr("href"));
+      }
+      
+      e.stopPropagation();
+    });
+    
+    TD.mustaches["status/media_thumb.mustache"] = TD.mustaches["status/media_thumb.mustache"].replace("is-gif", "is-gif is-paused");
+    TD.mustaches["media/native_video.mustache"] = '<div class="js-media-gif-container media-item nbfc is-video" style="background-image:url({{imageSrc}})"><video class="js-media-gif media-item-gif full-width block {{#isPossiblySensitive}}is-invisible{{/isPossiblySensitive}}" loop src="{{videoUrl}}"></video><a class="js-gif-play pin-all is-actionable">{{> media/video_overlay}}</a></div>';
     
     if (!ensurePropertyExists(TD, "components", "MediaGallery", "prototype", "_loadTweet") ||
         !ensurePropertyExists(TD, "components", "BaseModal", "prototype", "setAndShowContainer") ||
         !ensurePropertyExists(TD, "ui", "Column", "prototype", "playGifIfNotManuallyPaused"))return;
     
+    var cancelModal = false;
+    
     TD.components.MediaGallery.prototype._loadTweet = appendToFunction(TD.components.MediaGallery.prototype._loadTweet, function(){
       let media = this.chirp.getMedia().find(media => media.mediaId === this.clickedMediaEntityId);
 
       if (media && media.isVideo && media.service !== "youtube"){
-        $TD.openBrowser(this.clickedLink);
+        playVideo(media.chooseVideoVariant().url);
         cancelModal = true;
       }
     });
@@ -815,15 +844,6 @@
     });
     
     TD.ui.Column.prototype.playGifIfNotManuallyPaused = function(){};
-    TD.mustaches["status/media_thumb.mustache"] = TD.mustaches["status/media_thumb.mustache"].replace("is-gif", "is-gif is-paused");
-    
-    app.delegate(".js-gif-play", "click", function(e){
-      let parent = $(e.target).closest(".js-tweet").first();
-      let link = (parent.hasClass("tweet-detail") ? parent.find("a[rel='url']") : parent.find("time").first().children("a")).first();
-      
-      $TD.openBrowser(link.attr("href"));
-      e.stopPropagation();
-    });
   })();
   
   //
@@ -842,6 +862,34 @@
     media.SERVICES["youtube"] = media.YOUTUBE_RE;
   }
   
+  //
+  // Block: Add a pin icon to make tweet compose drawer stay open.
+  //
+  onAppReady.push(function(){
+    let ele = $(`<svg id="td-compose-drawer-pin" viewBox="0 0 24 24" class="icon js-show-tip" data-original-title="Stay open" data-tooltip-position="left">
+       <path d="M9.884,16.959l3.272,0.001l-0.82,4.568l-1.635,0l-0.817,-4.569Z"/>
+       <rect x="8.694" y="7.208" width="5.652" height="7.445"/>
+       <path d="M16.877,17.448c0,-1.908 -1.549,-3.456 -3.456,-3.456l-3.802,0c-1.907,0 -3.456,1.548 -3.456,3.456l10.714,0Z"/>
+       <path d="M6.572,5.676l2.182,2.183l5.532,0l2.182,-2.183l0,-1.455l-9.896,0l0,1.455Z"/>
+       </svg>`
+    ).appendTo(".js-docked-compose .js-compose-header");
+    
+    ele.click(function(){
+      if (TD.settings.getComposeStayOpen()){
+        ele.css("transform", "rotate(0deg)");
+        TD.settings.setComposeStayOpen(false);
+      }
+      else{
+        ele.css("transform", "rotate(90deg)");
+        TD.settings.setComposeStayOpen(true);
+      }
+    });
+    
+    if (TD.settings.getComposeStayOpen()){
+      ele.css("transform", "rotate(90deg)");
+    }
+  });
+  
   //
   // Block: Fix DM reply input box not getting focused after opening a conversation.
   //

Resources/Scripts/update.js

@@ -125,6 +125,10 @@
   font-size: 23px;
 }
 
+#tweetduck-changelog h2 + br {
+  display: none;
+}
+
 #tweetduck-changelog h3 {
   margin: 0 0 5px 7px;
   font-size: 18px;
@@ -281,7 +285,7 @@
              .replace(/`(.*?)`/g, "<code>$1</code>")
              .replace(/\[(.*?)\]\((.*?)\)/g, "<a href='$2'>$1</a>")
              .replace(/^([a-z0-9].*?)$/gmi, "<p>$1</p>")
-             .replace(/\n\r?\n/g, "<br>");
+             .replace(/\n\r?\n\r?/g, "<br>");
   };
   
   //

TweetDuck.csproj

@@ -88,6 +88,7 @@
     <Compile Include="Core\Controls\NumericUpDownEx.cs">
       <SubType>Component</SubType>
     </Compile>
+    <Compile Include="Core\FormManager.cs" />
     <Compile Include="Core\Handling\General\BrowserProcessHandler.cs" />
     <Compile Include="Core\Handling\ContextMenuBase.cs" />
     <Compile Include="Core\Handling\ContextMenuBrowser.cs" />
@@ -142,6 +143,7 @@
     <Compile Include="Core\Other\FormPlugins.Designer.cs">
       <DependentUpon>FormPlugins.cs</DependentUpon>
     </Compile>
+    <Compile Include="Core\Other\Management\VideoPlayer.cs" />
     <Compile Include="Core\Other\Settings\Dialogs\DialogSettingsCSS.cs">
       <SubType>Form</SubType>
     </Compile>
@@ -166,7 +168,7 @@
     <Compile Include="Core\Other\Settings\Dialogs\DialogSettingsRestart.Designer.cs">
       <DependentUpon>DialogSettingsRestart.cs</DependentUpon>
     </Compile>
-    <Compile Include="Core\Utils\BrowserProcesses.cs" />
+    <Compile Include="Core\Other\Management\BrowserProcesses.cs" />
     <Compile Include="Core\Utils\StringUtils.cs" />
     <Compile Include="Core\Utils\TwitterUtils.cs" />
     <Compile Include="Data\CombinedFileStream.cs" />
@@ -211,7 +213,7 @@
     <Compile Include="Data\Serialization\SingleTypeConverter.cs" />
     <Compile Include="Data\TwoKeyDictionary.cs" />
     <Compile Include="Data\WindowState.cs" />
-    <Compile Include="Core\Utils\MemoryUsageTracker.cs" />
+    <Compile Include="Core\Other\Management\MemoryUsageTracker.cs" />
     <Compile Include="Core\Utils\WindowsUtils.cs" />
     <Compile Include="Core\Bridge\TweetDeckBridge.cs" />
     <Compile Include="Core\Other\FormSettings.cs">
@@ -345,6 +347,10 @@
       <Project>{b10b0017-819e-4f71-870f-8256b36a26aa}</Project>
       <Name>TweetDuck.Browser</Name>
     </ProjectReference>
+    <ProjectReference Include="video\TweetDuck.Video\TweetDuck.Video.csproj">
+      <Project>{278b2d11-402d-44b6-b6a1-8fa67db65565}</Project>
+      <Name>TweetDuck.Video</Name>
+    </ProjectReference>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <PropertyGroup>

TweetDuck.sln

@@ -10,6 +10,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "UnitTests", "tests\UnitTest
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TweetLib.Audio", "lib\TweetLib.Audio\TweetLib.Audio.csproj", "{E9E1FD1B-F480-45B7-9970-BE2ECFD309AC}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TweetDuck.Video", "video\TweetDuck.Video\TweetDuck.Video.csproj", "{278B2D11-402D-44B6-B6A1-8FA67DB65565}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|x86 = Debug|x86
@@ -32,6 +34,10 @@ Global
 		{E9E1FD1B-F480-45B7-9970-BE2ECFD309AC}.Debug|x86.Build.0 = Debug|x86
 		{E9E1FD1B-F480-45B7-9970-BE2ECFD309AC}.Release|x86.ActiveCfg = Release|x86
 		{E9E1FD1B-F480-45B7-9970-BE2ECFD309AC}.Release|x86.Build.0 = Release|x86
+		{278B2D11-402D-44B6-B6A1-8FA67DB65565}.Debug|x86.ActiveCfg = Debug|x86
+		{278B2D11-402D-44B6-B6A1-8FA67DB65565}.Debug|x86.Build.0 = Debug|x86
+		{278B2D11-402D-44B6-B6A1-8FA67DB65565}.Release|x86.ActiveCfg = Release|x86
+		{278B2D11-402D-44B6-B6A1-8FA67DB65565}.Release|x86.Build.0 = Release|x86
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

bld/gen_full.iss

@@ -21,7 +21,6 @@ DefaultDirName={pf}\{#MyAppName}
 DefaultGroupName={#MyAppName}
 OutputBaseFilename={#MyAppName}
 VersionInfoVersion={#MyAppVersion}
-LicenseFile=.\Resources\LICENSE
 SetupIconFile=.\Resources\icon.ico
 Uninstallable=TDIsUninstallable
 UninstallDisplayName={#MyAppName}

bld/gen_port.iss

@@ -21,7 +21,6 @@ DefaultDirName={sd}\{#MyAppName}
 DefaultGroupName={#MyAppName}
 OutputBaseFilename={#MyAppName}.Portable
 VersionInfoVersion={#MyAppVersion}
-LicenseFile=.\Resources\LICENSE
 SetupIconFile=.\Resources\icon.ico
 Uninstallable=no
 UsePreviousAppDir=no

bld/gen_upd.iss

@@ -23,7 +23,6 @@ DefaultDirName={pf}\{#MyAppName}
 DefaultGroupName={#MyAppName}
 OutputBaseFilename={#MyAppName}.Update
 VersionInfoVersion={#MyAppVersion}
-LicenseFile=.\Resources\LICENSE
 SetupIconFile=.\Resources\icon.ico
 Uninstallable=TDIsUninstallable
 UninstallDisplayName={#MyAppName}
@@ -59,6 +58,9 @@ Type: filesandordirs; Name: "{app}\scripts"
 Type: filesandordirs; Name: "{localappdata}\{#MyAppName}\Cache"
 Type: filesandordirs; Name: "{localappdata}\{#MyAppName}\GPUCache"
 
+[InstallDelete]
+Type: files; Name: "{app}\plugins\official\emoji-keyboard\emoji-instructions.txt"
+
 [Code]
 function TDIsUninstallable: Boolean; forward;
 function TDGetRunArgs(Param: String): String; forward;

subprocess/Properties/AssemblyInfo.cs

@@ -31,5 +31,5 @@ using System.Runtime.InteropServices;
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.0.1.0")]
-[assembly: AssemblyFileVersion("1.0.1.0")]
+[assembly: AssemblyVersion("1.1.0.0")]
+[assembly: AssemblyFileVersion("1.1.0.0")]

video/TweetDuck.Video/ControlWMP.cs

@@ -0,0 +1,17 @@
+using System.ComponentModel;
+using System.Windows.Forms;
+using WMPLib;
+
+namespace TweetDuck.Video{
+    [DesignTimeVisible(true)]
+    [Clsid("{6bf52a52-394a-11d3-b153-00c04f79faa6}")]
+    class ControlWMP : AxHost{
+        public WindowsMediaPlayer Ocx { get; private set; }
+
+        public ControlWMP() : base("6bf52a52-394a-11d3-b153-00c04f79faa6"){}
+
+        protected override void AttachInterfaces(){
+            Ocx = (WindowsMediaPlayer)GetOcx();
+        }
+    }
+}

video/TweetDuck.Video/FlatProgressBar.cs

@@ -0,0 +1,33 @@
+using System.Drawing;
+using System.Windows.Forms;
+
+namespace TweetDuck.Video{
+    sealed class FlatProgressBar : ProgressBar{
+        private readonly SolidBrush brush;
+
+        public FlatProgressBar(){
+            brush = new SolidBrush(Color.White);
+
+            SetStyle(ControlStyles.UserPaint, true);
+            SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
+        }
+
+        protected override void OnPaint(PaintEventArgs e){
+            if (brush.Color != ForeColor){
+                brush.Color = ForeColor;
+            }
+
+            Rectangle rect = e.ClipRectangle;
+            rect.Width = (int)(rect.Width*((double)Value/Maximum));
+            e.Graphics.FillRectangle(brush, rect);
+        }
+
+        protected override void Dispose(bool disposing){
+            base.Dispose(disposing);
+
+            if (disposing){
+                brush.Dispose();
+            }
+        }
+    }
+}

video/TweetDuck.Video/FormPlayer.Designer.cs

@@ -0,0 +1,142 @@
+namespace TweetDuck.Video {
+    partial class FormPlayer {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing) {
+            if (disposing && (components != null)) {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent() {
+            this.components = new System.ComponentModel.Container();
+            this.timerSync = new System.Windows.Forms.Timer(this.components);
+            this.trackBarVolume = new System.Windows.Forms.TrackBar();
+            this.tablePanel = new System.Windows.Forms.TableLayoutPanel();
+            this.progressSeek = new TweetDuck.Video.FlatProgressBar();
+            this.labelTime = new System.Windows.Forms.Label();
+            this.timerData = new System.Windows.Forms.Timer(this.components);
+            ((System.ComponentModel.ISupportInitialize)(this.trackBarVolume)).BeginInit();
+            this.tablePanel.SuspendLayout();
+            this.SuspendLayout();
+            // 
+            // timerSync
+            // 
+            this.timerSync.Interval = 15;
+            this.timerSync.Tick += new System.EventHandler(this.timerSync_Tick);
+            // 
+            // trackBarVolume
+            // 
+            this.trackBarVolume.AutoSize = false;
+            this.trackBarVolume.BackColor = System.Drawing.SystemColors.Control;
+            this.trackBarVolume.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.trackBarVolume.Location = new System.Drawing.Point(158, 5);
+            this.trackBarVolume.Margin = new System.Windows.Forms.Padding(3, 5, 3, 3);
+            this.trackBarVolume.Maximum = 100;
+            this.trackBarVolume.Name = "trackBarVolume";
+            this.trackBarVolume.Size = new System.Drawing.Size(94, 26);
+            this.trackBarVolume.SmallChange = 5;
+            this.trackBarVolume.TabIndex = 2;
+            this.trackBarVolume.TickFrequency = 10;
+            this.trackBarVolume.TickStyle = System.Windows.Forms.TickStyle.None;
+            this.trackBarVolume.Value = 50;
+            this.trackBarVolume.ValueChanged += new System.EventHandler(this.trackBarVolume_ValueChanged);
+            this.trackBarVolume.MouseDown += new System.Windows.Forms.MouseEventHandler(this.trackBarVolume_MouseDown);
+            this.trackBarVolume.MouseUp += new System.Windows.Forms.MouseEventHandler(this.trackBarVolume_MouseUp);
+            // 
+            // tablePanel
+            // 
+            this.tablePanel.BackColor = System.Drawing.SystemColors.Control;
+            this.tablePanel.ColumnCount = 3;
+            this.tablePanel.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 100F));
+            this.tablePanel.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Absolute, 75F));
+            this.tablePanel.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Absolute, 100F));
+            this.tablePanel.Controls.Add(this.trackBarVolume, 2, 0);
+            this.tablePanel.Controls.Add(this.progressSeek, 0, 0);
+            this.tablePanel.Controls.Add(this.labelTime, 1, 0);
+            this.tablePanel.Dock = System.Windows.Forms.DockStyle.Bottom;
+            this.tablePanel.Location = new System.Drawing.Point(0, 86);
+            this.tablePanel.Name = "tablePanel";
+            this.tablePanel.RowCount = 1;
+            this.tablePanel.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 100F));
+            this.tablePanel.Size = new System.Drawing.Size(255, 34);
+            this.tablePanel.TabIndex = 1;
+            // 
+            // progressSeek
+            // 
+            this.progressSeek.BackColor = System.Drawing.Color.White;
+            this.progressSeek.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.progressSeek.ForeColor = System.Drawing.Color.LimeGreen;
+            this.progressSeek.Location = new System.Drawing.Point(9, 10);
+            this.progressSeek.Margin = new System.Windows.Forms.Padding(9, 10, 9, 11);
+            this.progressSeek.Maximum = 5000;
+            this.progressSeek.Name = "progressSeek";
+            this.progressSeek.Size = new System.Drawing.Size(62, 13);
+            this.progressSeek.Style = System.Windows.Forms.ProgressBarStyle.Continuous;
+            this.progressSeek.TabIndex = 0;
+            this.progressSeek.MouseDown += new System.Windows.Forms.MouseEventHandler(this.progressSeek_MouseDown);
+            // 
+            // labelTime
+            // 
+            this.labelTime.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.labelTime.Location = new System.Drawing.Point(80, 2);
+            this.labelTime.Margin = new System.Windows.Forms.Padding(0, 2, 0, 5);
+            this.labelTime.Name = "labelTime";
+            this.labelTime.Size = new System.Drawing.Size(75, 27);
+            this.labelTime.TabIndex = 1;
+            this.labelTime.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
+            // 
+            // timerData
+            // 
+            this.timerData.Interval = 500;
+            this.timerData.Tick += new System.EventHandler(this.timerData_Tick);
+            // 
+            // FormPlayer
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.BackColor = System.Drawing.Color.Black;
+            this.ClientSize = new System.Drawing.Size(255, 120);
+            this.ControlBox = false;
+            this.Controls.Add(this.tablePanel);
+            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
+            this.Location = new System.Drawing.Point(-32000, -32000);
+            this.MaximizeBox = false;
+            this.MinimizeBox = false;
+            this.Name = "FormPlayer";
+            this.ShowIcon = false;
+            this.ShowInTaskbar = false;
+            this.StartPosition = System.Windows.Forms.FormStartPosition.Manual;
+            this.Text = "TweetDuck Video";
+            this.Load += new System.EventHandler(this.FormPlayer_Load);
+            ((System.ComponentModel.ISupportInitialize)(this.trackBarVolume)).EndInit();
+            this.tablePanel.ResumeLayout(false);
+            this.ResumeLayout(false);
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.Timer timerSync;
+        private System.Windows.Forms.TrackBar trackBarVolume;
+        private System.Windows.Forms.TableLayoutPanel tablePanel;
+        private FlatProgressBar progressSeek;
+        private System.Windows.Forms.Label labelTime;
+        private System.Windows.Forms.Timer timerData;
+    }
+}
+

video/TweetDuck.Video/FormPlayer.cs

@@ -0,0 +1,223 @@
+using System;
+using System.Drawing;
+using System.Runtime.InteropServices;
+using System.Windows.Forms;
+using WMPLib;
+
+namespace TweetDuck.Video{
+    partial class FormPlayer : Form{
+        protected override bool ShowWithoutActivation => true;
+
+        private readonly IntPtr ownerHandle;
+        private readonly string videoUrl;
+        
+        private readonly ControlWMP player;
+        private bool wasCursorInside;
+        private bool isPaused;
+        private bool isDragging;
+
+        private WindowsMediaPlayer Player => player.Ocx;
+
+        public FormPlayer(IntPtr handle, int volume, string url){
+            InitializeComponent();
+
+            this.ownerHandle = handle;
+            this.videoUrl = url;
+            
+            player = new ControlWMP{
+                Dock = DockStyle.Fill
+            };
+
+            player.BeginInit();
+            Controls.Add(player);
+            player.EndInit();
+
+            Player.enableContextMenu = false;
+            Player.uiMode = "none";
+            Player.settings.autoStart = false;
+            Player.settings.enableErrorDialogs = false;
+            Player.settings.setMode("loop", true);
+
+            Player.PlayStateChange += player_PlayStateChange;
+            Player.MediaError += player_MediaError;
+            
+            trackBarVolume.Value = volume; // changes player volume too if non-default
+
+            Application.AddMessageFilter(new MessageFilter(this));
+        }
+
+        // Events
+
+        private void FormPlayer_Load(object sender, EventArgs e){
+            Player.URL = videoUrl;
+        }
+
+        private void player_PlayStateChange(int newState){
+            WMPPlayState state = (WMPPlayState)newState;
+
+            if (state == WMPPlayState.wmppsReady){
+                Player.controls.play();
+            }
+            else if (state == WMPPlayState.wmppsPlaying){
+                Player.PlayStateChange -= player_PlayStateChange;
+                
+                timerSync.Start();
+                NativeMethods.SetWindowOwner(Handle, ownerHandle);
+                Cursor.Current = Cursors.Default;
+            }
+        }
+
+        private void player_MediaError(object pMediaObject){
+            Console.Out.WriteLine(((IWMPMedia2)pMediaObject).Error.errorDescription);
+
+            Marshal.ReleaseComObject(pMediaObject);
+            Environment.Exit(Program.CODE_MEDIA_ERROR);
+        }
+
+        private void timerSync_Tick(object sender, EventArgs e){
+            if (NativeMethods.GetWindowRect(ownerHandle, out NativeMethods.RECT rect)){
+                int width = rect.Right-rect.Left+1;
+                int height = rect.Bottom-rect.Top+1;
+
+                IWMPMedia media = Player.currentMedia;
+                IWMPControls controls = Player.controls;
+
+                bool isCursorInside = ClientRectangle.Contains(PointToClient(Cursor.Position));
+
+                ClientSize = new Size(Math.Min(media.imageSourceWidth, width*3/4), Math.Min(media.imageSourceHeight, height*3/4));
+                Location = new Point(rect.Left+(width-ClientSize.Width)/2, rect.Top+(height-ClientSize.Height+SystemInformation.CaptionHeight)/2);
+
+                tablePanel.Visible = isCursorInside || isDragging;
+
+                if (tablePanel.Visible){
+                    labelTime.Text = $"{controls.currentPositionString} / {media.durationString}";
+
+                    int value = (int)Math.Round(progressSeek.Maximum*controls.currentPosition/media.duration);
+
+                    if (value >= progressSeek.Maximum){
+                        progressSeek.Value = progressSeek.Maximum;
+                        progressSeek.Value = progressSeek.Maximum-1;
+                        progressSeek.Value = progressSeek.Maximum;
+                    }
+                    else{
+                        progressSeek.Value = value+1;
+                        progressSeek.Value = value;
+                    }
+                }
+
+                if (controls.currentPosition > media.duration){ // pausing near the end of the video causes WMP to play beyond the end of the video wtf
+                    controls.stop();
+                    controls.currentPosition = 0;
+                    controls.play();
+                }
+                
+                if (isCursorInside && !wasCursorInside){
+                    wasCursorInside = true;
+                }
+                else if (!isCursorInside && wasCursorInside){
+                    wasCursorInside = false;
+
+                    if (!Player.fullScreen){
+                        NativeMethods.SetForegroundWindow(ownerHandle);
+                    }
+                }
+
+                Marshal.ReleaseComObject(media);
+                Marshal.ReleaseComObject(controls);
+            }
+            else{
+                Environment.Exit(Program.CODE_OWNER_GONE);
+            }
+        }
+
+        private void timerData_Tick(object sender, EventArgs e){
+            timerData.Stop();
+            NativeMethods.PostMessage(NativeMethods.HWND_BROADCAST, Program.VideoPlayerMessage, new UIntPtr((uint)trackBarVolume.Value), ownerHandle);
+        }
+
+        private void progressSeek_MouseDown(object sender, MouseEventArgs e){
+            if (e.Button == MouseButtons.Left){
+                IWMPMedia media = Player.currentMedia;
+                IWMPControls controls = Player.controls;
+
+                controls.currentPosition = media.duration*progressSeek.PointToClient(Cursor.Position).X/progressSeek.Width;
+
+                Marshal.ReleaseComObject(media);
+                Marshal.ReleaseComObject(controls);
+            }
+        }
+
+        private void trackBarVolume_ValueChanged(object sender, EventArgs e){
+            IWMPSettings settings = Player.settings;
+            settings.volume = trackBarVolume.Value;
+            
+            Marshal.ReleaseComObject(settings);
+
+            if (timerSync.Enabled){
+                timerData.Stop();
+                timerData.Start();
+            }
+        }
+
+        private void trackBarVolume_MouseDown(object sender, MouseEventArgs e){
+            isDragging = true;
+        }
+
+        private void trackBarVolume_MouseUp(object sender, MouseEventArgs e){
+            isDragging = false;
+        }
+
+        // Controls & messages
+
+        private void TogglePause(){
+            IWMPControls controls = Player.controls;
+
+            if (isPaused){
+                controls.play();
+            }
+            else{
+                controls.pause();
+            }
+
+            isPaused = !isPaused;
+            Marshal.ReleaseComObject(controls);
+        }
+
+        internal class MessageFilter : IMessageFilter{
+            private readonly FormPlayer form;
+
+            private bool IsCursorOverVideo{
+                get{
+                    Point cursor = form.PointToClient(Cursor.Position);
+                    return cursor.Y < form.tablePanel.Location.Y;
+                }
+            }
+
+            public MessageFilter(FormPlayer form){
+                this.form = form;
+            }
+
+            bool IMessageFilter.PreFilterMessage(ref Message m){
+                if (m.Msg == 0x0201){ // WM_LBUTTONDOWN
+                    if (IsCursorOverVideo){
+                        form.TogglePause();
+                        return true;
+                    }
+                }
+                else if (m.Msg == 0x0203 || (m.Msg == 0x0100 && m.WParam.ToInt32() == 0x20)){ // WM_LBUTTONDBLCLK, WM_KEYDOWN, VK_SPACE
+                    if (IsCursorOverVideo){
+                        form.TogglePause();
+                        form.Player.fullScreen = !form.Player.fullScreen;
+                        return true;
+                    }
+                }
+                else if (m.Msg == 0x020B && ((m.WParam.ToInt32() >> 16) & 0xFFFF) == 1){ // WM_XBUTTONDOWN
+                    NativeMethods.SetForegroundWindow(form.ownerHandle);
+                    Environment.Exit(Program.CODE_USER_REQUESTED);
+                }
+
+                return false;
+            }
+        }
+    }
+}

video/TweetDuck.Video/NativeMethods.cs

@@ -0,0 +1,46 @@
+using System;
+using System.Runtime.InteropServices;
+
+namespace TweetDuck.Video{
+    static class NativeMethods{
+        public static readonly IntPtr HWND_BROADCAST = new IntPtr(0xFFFF);
+
+        private const int GWL_HWNDPARENT = -8;
+        
+        [DllImport("user32.dll")]
+        public static extern bool PostMessage(IntPtr hWnd, uint msg, UIntPtr wParam, IntPtr lParam);
+
+        [DllImport("user32.dll")]
+        public static extern uint RegisterWindowMessage(string messageName);
+
+        [DllImport("user32.dll")]
+        [return: MarshalAs(UnmanagedType.Bool)]
+        public static extern bool GetWindowRect(IntPtr hWnd, out RECT lpRect);
+
+        [DllImport("user32.dll")]
+        private static extern int SetWindowLong(IntPtr hWnd, int nIndex, IntPtr dwNewLong);
+
+        [DllImport("user32.dll")]
+        public static extern bool SetForegroundWindow(IntPtr hWnd);
+
+        [StructLayout(LayoutKind.Sequential)]
+        public struct RECT{
+            public int Left;
+            public int Top;
+            public int Right;
+            public int Bottom;
+        }
+
+        public static void SetWindowOwner(IntPtr child, IntPtr owner){
+            SetWindowLong(child, GWL_HWNDPARENT, owner);
+            /*
+             * "You must not call SetWindowLong with the GWL_HWNDPARENT index to change the parent of a child window"
+             * 
+             * ...which I'm not sure they're saying because this is completely unsupported and causes demons to come out of sewers
+             * ...or because GWL_HWNDPARENT actually changes the OWNER and is therefore NOT changing the parent of a child window
+             * 
+             * ...so technically, this is following the documentation to the word.
+             */
+        }
+    }
+}

video/TweetDuck.Video/Program.cs

@@ -0,0 +1,45 @@
+using System;
+using System.Globalization;
+using System.Windows.Forms;
+
+namespace TweetDuck.Video{
+    static class Program{
+        // referenced in VideoPlayer
+        // set by task manager -- public const int CODE_PROCESS_KILLED = 1;
+        public const int CODE_INVALID_ARGS = 2;
+        public const int CODE_LAUNCH_FAIL = 3;
+        public const int CODE_MEDIA_ERROR = 4;
+        public const int CODE_OWNER_GONE = 5;
+        public const int CODE_USER_REQUESTED = 6;
+
+        private static uint? message;
+        public static uint VideoPlayerMessage => message ?? (message = NativeMethods.RegisterWindowMessage("TweetDuckVideoPlayer")).Value;
+
+        [STAThread]
+        private static int Main(string[] args){
+            Application.EnableVisualStyles();
+            Application.SetCompatibleTextRenderingDefault(false);
+
+            IntPtr ownerHandle;
+            int defaultVolume;
+            string videoUrl;
+
+            try{
+                ownerHandle = new IntPtr(int.Parse(args[0], NumberStyles.Integer, CultureInfo.InvariantCulture));
+                defaultVolume = int.Parse(args[1], NumberStyles.Integer, CultureInfo.InvariantCulture);
+                videoUrl = new Uri(args[2], UriKind.Absolute).AbsoluteUri;
+            }catch{
+                return CODE_INVALID_ARGS;
+            }
+
+            try{
+                Application.Run(new FormPlayer(ownerHandle, defaultVolume, videoUrl));
+            }catch(Exception e){
+                Console.Out.WriteLine(e.Message);
+                return CODE_LAUNCH_FAIL;
+            }
+
+            return 0;
+        }
+    }
+}

video/TweetDuck.Video/Properties/AssemblyInfo.cs

@@ -0,0 +1,35 @@
+using System.Reflection;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("TweetDuck Video")]
+[assembly: AssemblyDescription("TweetDuck Video")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("TweetDuck.Video")]
+[assembly: AssemblyCopyright("")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible
+// to COM components.  If you need to access a type in this assembly from
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("278b2d11-402d-44b6-b6a1-8fa67db65565")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

video/TweetDuck.Video/TweetDuck.Video.csproj

@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{278B2D11-402D-44B6-B6A1-8FA67DB65565}</ProjectGuid>
+    <OutputType>WinExe</OutputType>
+    <RootNamespace>TweetDuck.Video</RootNamespace>
+    <AssemblyName>TweetDuck.Video</AssemblyName>
+    <TargetFrameworkVersion>v4.5.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+    <ResolveComReferenceSilent>True</ResolveComReferenceSilent>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x86'">
+    <DebugSymbols>true</DebugSymbols>
+    <OutputPath>bin\x86\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <DebugType>full</DebugType>
+    <PlatformTarget>x86</PlatformTarget>
+    <ErrorReport>prompt</ErrorReport>
+    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>true</Prefer32Bit>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x86'">
+    <OutputPath>bin\x86\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <Optimize>true</Optimize>
+    <DebugType>none</DebugType>
+    <PlatformTarget>x86</PlatformTarget>
+    <ErrorReport>prompt</ErrorReport>
+    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>true</Prefer32Bit>
+    <GenerateSerializationAssemblies>Auto</GenerateSerializationAssemblies>
+  </PropertyGroup>
+  <PropertyGroup>
+    <ApplicationIcon>Resources\icon.ico</ApplicationIcon>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Drawing" />
+    <Reference Include="System.Windows.Forms" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="ControlWMP.cs">
+      <SubType>Component</SubType>
+    </Compile>
+    <Compile Include="FlatProgressBar.cs">
+      <SubType>Component</SubType>
+    </Compile>
+    <Compile Include="FormPlayer.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="FormPlayer.Designer.cs">
+      <DependentUpon>FormPlayer.cs</DependentUpon>
+    </Compile>
+    <Compile Include="NativeMethods.cs" />
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <COMReference Include="WMPLib">
+      <Guid>{6BF52A50-394A-11D3-B153-00C04F79FAA6}</Guid>
+      <VersionMajor>1</VersionMajor>
+      <VersionMinor>0</VersionMinor>
+      <Lcid>0</Lcid>
+      <WrapperTool>tlbimp</WrapperTool>
+      <Isolated>False</Isolated>
+      <EmbedInteropTypes>True</EmbedInteropTypes>
+    </COMReference>
+  </ItemGroup>
+  <ItemGroup>
+    <Content Include="Resources\icon.ico" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>