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.NET (WPF and Windows Forms) bindings for the Chromium Embedded Framework

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WinForms Example - Split BrowserProcessHandler out into two different examples ScheduleMessagePumpBrowserProcessHandler - contains a simplistic message pump example WinFormsBrowserProcessHandler - contains just a timer that calls Cef.DoMessageLoopWork These are the two options for integrating CEF into WinForms
2019-05-15 21:27:56 +10:00
// Copyright © 2019 The CefSharp Authors. All rights reserved.
//
// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
using System;
using System.Threading.Tasks;
using System.Timers;
using CefSharp.Example.Handlers;
namespace CefSharp.WinForms.Example.Handlers
{
/// <summary>
/// Integreates CEF into the WinForms message loop,
WinForms Example - Improve Cef.DoMessageLoopWork examples Change WinFormsBrowserProcessHandler to use a WinForms timer so it's Diposed when the Form is switch it to using 60fps
2019-06-02 20:34:44 +10:00
/// This implementation is very simplistic, the timer fires roughly <see cref="BrowserProcessHandler.ThirtyTimesPerSecond"/>
WinForms Example - Split BrowserProcessHandler out into two different examples ScheduleMessagePumpBrowserProcessHandler - contains a simplistic message pump example WinFormsBrowserProcessHandler - contains just a timer that calls Cef.DoMessageLoopWork These are the two options for integrating CEF into WinForms
2019-05-15 21:27:56 +10:00
/// times per second calling Cef.DoMessageLoopWork on the WinForms UI Thread. When OnScheduleMessagePumpWork
/// is called with a delay of less than or equal to 0 then Cef.DoMessageLoopWork is called as CEF has signaled
/// that it needs to perform work.
/// See the following link for the CEF reference implementation that containes a more complex example that maybe
/// required in some circumstances.
/// https://bitbucket.org/chromiumembedded/cef/commits/1ff26aa02a656b3bc9f0712591c92849c5909e04?at=2785
/// </summary>
public class ScheduleMessagePumpBrowserProcessHandler : BrowserProcessHandler
{
private Timer timer;
private TaskFactory factory;
public ScheduleMessagePumpBrowserProcessHandler(TaskScheduler scheduler)
{
factory = new TaskFactory(scheduler);
WinForms Example - Improve Cef.DoMessageLoopWork examples Change WinFormsBrowserProcessHandler to use a WinForms timer so it's Diposed when the Form is switch it to using 60fps
2019-06-02 20:34:44 +10:00
timer = new Timer { Interval = ThirtyTimesPerSecond, AutoReset = true };
WinForms Example - Split BrowserProcessHandler out into two different examples ScheduleMessagePumpBrowserProcessHandler - contains a simplistic message pump example WinFormsBrowserProcessHandler - contains just a timer that calls Cef.DoMessageLoopWork These are the two options for integrating CEF into WinForms
2019-05-15 21:27:56 +10:00
timer.Start();
timer.Elapsed += TimerTick;
}
private void TimerTick(object sender, EventArgs e)
{
//Basically execute Cef.DoMessageLoopWork 30 times per second
//Execute DoMessageLoopWork on UI thread
factory.StartNew(() => Cef.DoMessageLoopWork());
}
Core - Add Default Handler implementations Inherit and override only the required methods rather than implement the whole interface
2021-05-11 20:24:48 +10:00
protected override void OnScheduleMessagePumpWork(long delay)
WinForms Example - Split BrowserProcessHandler out into two different examples ScheduleMessagePumpBrowserProcessHandler - contains a simplistic message pump example WinFormsBrowserProcessHandler - contains just a timer that calls Cef.DoMessageLoopWork These are the two options for integrating CEF into WinForms
2019-05-15 21:27:56 +10:00
{
Core - Add Default Handler implementations Inherit and override only the required methods rather than implement the whole interface
2021-05-11 20:24:48 +10:00
//If the delay is greater than the Maximum then use ThirtyTimesPerSecond
//instead - we do this to achieve a minimum number of FPS
if (delay > ThirtyTimesPerSecond)
{
delay = ThirtyTimesPerSecond;
}
WinForms Example - Split BrowserProcessHandler out into two different examples ScheduleMessagePumpBrowserProcessHandler - contains a simplistic message pump example WinFormsBrowserProcessHandler - contains just a timer that calls Cef.DoMessageLoopWork These are the two options for integrating CEF into WinForms
2019-05-15 21:27:56 +10:00
//when delay <= 0 queue the Task up for execution on the UI thread.
if (delay <= 0)
{
//Update the timer to execute almost immediately
factory.StartNew(() => Cef.DoMessageLoopWork());
}
}
Core - Add Default Handler implementations Inherit and override only the required methods rather than implement the whole interface
2021-05-11 20:24:48 +10:00
protected override void Dispose(bool disposing)
WinForms Example - Split BrowserProcessHandler out into two different examples ScheduleMessagePumpBrowserProcessHandler - contains a simplistic message pump example WinFormsBrowserProcessHandler - contains just a timer that calls Cef.DoMessageLoopWork These are the two options for integrating CEF into WinForms
2019-05-15 21:27:56 +10:00
{
Core - Add Default Handler implementations Inherit and override only the required methods rather than implement the whole interface
2021-05-11 20:24:48 +10:00
if(disposing)
WinForms Example - Split BrowserProcessHandler out into two different examples ScheduleMessagePumpBrowserProcessHandler - contains a simplistic message pump example WinFormsBrowserProcessHandler - contains just a timer that calls Cef.DoMessageLoopWork These are the two options for integrating CEF into WinForms
2019-05-15 21:27:56 +10:00
{
Core - Add Default Handler implementations Inherit and override only the required methods rather than implement the whole interface
2021-05-11 20:24:48 +10:00
if (timer != null)
{
timer.Stop();
timer.Dispose();
timer = null;
}
WinForms Example - Split BrowserProcessHandler out into two different examples ScheduleMessagePumpBrowserProcessHandler - contains a simplistic message pump example WinFormsBrowserProcessHandler - contains just a timer that calls Cef.DoMessageLoopWork These are the two options for integrating CEF into WinForms
2019-05-15 21:27:56 +10:00
}
Core - Add Default Handler implementations Inherit and override only the required methods rather than implement the whole interface
2021-05-11 20:24:48 +10:00
base.Dispose(disposing);
WinForms Example - Split BrowserProcessHandler out into two different examples ScheduleMessagePumpBrowserProcessHandler - contains a simplistic message pump example WinFormsBrowserProcessHandler - contains just a timer that calls Cef.DoMessageLoopWork These are the two options for integrating CEF into WinForms
2019-05-15 21:27:56 +10:00
}
}
}
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