IExtensionHandler Interface

Version 112.3.0

Implement this interface to handle events related to browser extensions. The methods of this class will be called on the CEF UI thread. See LoadExtension(String, String, IExtensionHandler) for information about extension loading.

Namespace: CefSharp
Assembly: CefSharp (in CefSharp.dll) Version: 112.3.0.0 (112.3.0.0)

Syntax

C++

Copy

public interface IExtensionHandler : IDisposable

public interface class IExtensionHandler : IDisposable

The IExtensionHandler type exposes the following members.

Methods

	Name	Description
	CanAccessBrowser	Called when the tabId associated with targetBrowser is specified to an extension API call that accepts a tabId parameter (e.g. chrome.tabs.*).
	Dispose	Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources. (Inherited from IDisposable.)
	GetActiveBrowser	Called when no tabId is specified to an extension API call that accepts a tabId parameter (e.g. chrome.tabs.*).
	GetExtensionResource	Called to retrieve an extension resource that would normally be loaded from disk (e.g. if a file parameter is specified to chrome.tabs.executeScript). Localization substitutions will not be applied to resources handled via this method.
	OnBeforeBackgroundBrowser	Called when an extension needs a browser to host a background script specified via the "background" manifest key. The browser will have no visible window and cannot be displayed. To allow creation of the browser optionally modify newBrowser and settings and return false. To cancel creation of the browser (and consequently cancel load of the background script) return true. Successful creation will be indicated by a call to ILifeSpanHandler.OnAfterCreated, and IBrowserHost.IsBackgroundHost will return true for the resulting browser. See https://developer.chrome.com/extensions/event_pages for more information about extension background script usage.
	OnBeforeBrowser	Called when an extension API (e.g. chrome.tabs.create) requests creation of a new browser. Successful creation will be indicated by a call to OnAfterCreated(IWebBrowser, IBrowser).
	OnExtensionLoaded	Called if the LoadExtension(String, String, IExtensionHandler) request succeeds.
	OnExtensionLoadFailed	Called if the LoadExtension(String, String, IExtensionHandler) request fails.
	OnExtensionUnloaded	Called after the IExtension.Unload request has completed.

Top

Reference

CefSharp Namespace