/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the Qt VS Tools.
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**
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** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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using EnvDTE;
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using System.Collections.Concurrent;
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using System.Diagnostics;
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using System.Linq;
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using System.Threading;
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using Thread = System.Threading.Thread;
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using System.Windows.Forms;
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using System.Threading.Tasks;
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using Microsoft.VisualStudio.Threading;
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using QtVsTools.VisualStudio;
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namespace QtVsTools.Core
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{
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public static class Messages
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{
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private static OutputWindow Window { get; set; }
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private static OutputWindowPane Pane { get; set; }
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private static OutputWindowPane _BuildPane;
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private static OutputWindowPane BuildPane
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{
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get
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{
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return _BuildPane ?? (_BuildPane = Window.OutputWindowPanes.Cast<OutputWindowPane>()
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.Where(pane => pane.Guid == "{1BD8A850-02D1-11D1-BEE7-00A0C913D1F8}")
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.FirstOrDefault());
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}
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}
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/// <summary>
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/// Show a message on the output pane.
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/// </summary>
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public static void Print(string text, bool clear = false, bool activate = false)
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{
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msgQueue.Enqueue(new Msg()
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{
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Clear = clear,
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Text = text,
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Activate = activate
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});
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FlushMessages();
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}
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static void OutputWindowPane_Print(string text)
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{
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OutputWindowPane_Init();
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Pane.OutputString(text + "\r\n");
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// show buildPane if a build is in progress
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if (Dte.Solution.SolutionBuild.BuildState == vsBuildState.vsBuildStateInProgress)
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BuildPane?.Activate();
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}
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/// <summary>
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/// Activates the message pane of the Qt VS Tools extension.
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/// </summary>
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public static void ActivateMessagePane()
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{
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msgQueue.Enqueue(new Msg()
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{
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Activate = true
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});
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FlushMessages();
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}
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static void OutputWindowPane_Activate()
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{
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OutputWindowPane_Init();
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Pane?.Activate();
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}
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private static string ExceptionToString(System.Exception e)
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{
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return e.Message + "\r\n" + "(" + e.StackTrace.Trim() + ")";
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}
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private static readonly string ErrorString = SR.GetString("Messages_ErrorOccured");
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private static readonly string WarningString = SR.GetString("Messages_Warning");
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private static readonly string SolutionString = SR.GetString("Messages_SolveProblem");
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static public void DisplayCriticalErrorMessage(System.Exception e)
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{
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MessageBox.Show(ErrorString +
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ExceptionToString(e),
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SR.GetString("Resources_QtVsTools"), MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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static public void DisplayCriticalErrorMessage(string msg)
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{
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MessageBox.Show(ErrorString +
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msg,
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SR.GetString("Resources_QtVsTools"), MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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static public void DisplayErrorMessage(System.Exception e)
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{
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MessageBox.Show(ErrorString +
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ExceptionToString(e),
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SR.GetString("Resources_QtVsTools"), MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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static public void DisplayErrorMessage(string msg)
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{
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MessageBox.Show(ErrorString +
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msg,
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SR.GetString("Resources_QtVsTools"), MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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static public void DisplayWarningMessage(System.Exception e, string solution)
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{
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MessageBox.Show(WarningString +
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ExceptionToString(e) +
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SolutionString +
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solution,
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SR.GetString("Resources_QtVsTools"), MessageBoxButtons.OK, MessageBoxIcon.Warning);
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}
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static public void DisplayWarningMessage(string msg)
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{
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MessageBox.Show(WarningString +
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msg,
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SR.GetString("Resources_QtVsTools"), MessageBoxButtons.OK, MessageBoxIcon.Warning);
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}
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public static void ClearPane()
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{
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msgQueue.Enqueue(new Msg()
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{
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Clear = true
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});
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FlushMessages();
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}
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static void OutputWindowPane_Clear()
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{
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OutputWindowPane_Init();
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Pane?.Clear();
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}
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class Msg
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{
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public bool Clear { get; set; } = false;
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public string Text { get; set; } = null;
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public bool Activate { get; set; } = false;
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}
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static bool shuttingDown = false;
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static ConcurrentQueue<Msg> msgQueue = new ConcurrentQueue<Msg>();
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static DTE Dte { get; set; } = null;
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private static void OnBeginShutdown()
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{
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shuttingDown = true;
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}
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private static void OutputWindowPane_Init()
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{
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if (Dte == null)
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Dte = VsServiceProvider.GetService<DTE>();
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var t = Stopwatch.StartNew();
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while (Pane == null && t.ElapsedMilliseconds < 5000) {
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try {
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Window = Dte.Windows.Item(Constants.vsWindowKindOutput).Object as OutputWindow;
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Pane = Window?.OutputWindowPanes.Add(SR.GetString("Resources_QtVsTools"));
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} catch {
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}
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if (Pane == null)
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Thread.Yield();
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}
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Dte.Events.DTEEvents.OnBeginShutdown += OnBeginShutdown;
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}
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public static JoinableTaskFactory JoinableTaskFactory { get; set; }
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static readonly object staticCriticalSection = new object();
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static Task FlushTask { get; set; }
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static EventWaitHandle MessageReady { get; set; }
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static void FlushMessages()
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{
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lock (staticCriticalSection) {
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if (FlushTask == null) {
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MessageReady = new EventWaitHandle(false, EventResetMode.AutoReset);
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FlushTask = Task.Run(async () =>
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{
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while (!shuttingDown) {
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if (!await MessageReady.ToTask(3000))
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continue;
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while (!msgQueue.IsEmpty) {
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Msg msg;
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if (!msgQueue.TryDequeue(out msg)) {
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await Task.Yield();
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continue;
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}
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////////////////////////////////////////////////////////////////////
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// Switch to main (UI) thread
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await JoinableTaskFactory.SwitchToMainThreadAsync();
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if (msg.Clear)
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OutputWindowPane_Clear();
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if (msg.Text != null)
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OutputWindowPane_Print(msg.Text);
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if (msg.Activate)
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OutputWindowPane_Activate();
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////////////////////////////////////////////////////////////////////
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// Switch to background thread
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await TaskScheduler.Default;
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}
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}
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});
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}
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}
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MessageReady.Set();
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}
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}
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}
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