protected override bool OnBeforePopup(CefBrowser browser, CefFrame frame, string targetUrl, string targetFrameName, CefPopupFeatures popupFeatures, CefWindowInfo windowInfo, ref CefClient client, CefBrowserSettings settings, ref bool noJavascriptAccess)
{
bool res = false;
if (!string.IsNullOrEmpty(targetUrl))
{
if (webBrowser.selfRequest != null)
{
CefRequest req = CefRequest.Create();
req.FirstPartyForCookies = webBrowser.selfRequest.FirstPartyForCookies;
req.Options = webBrowser.selfRequest.Options;
/*CefPostData postData = CefPostData.Create();
CefPostDataElement element = CefPostDataElement.Create();
int index = targetUrl.IndexOf("?");
string url = targetUrl.Substring(0, index);
string data = targetUrl.Substring(index + 1);
byte[] bytes = Encoding.UTF8.GetBytes(data);
element.SetToBytes(bytes);
postData.Add(element);
*/
System.Collections.Specialized.NameValueCollection h = new System.Collections.Specialized.NameValueCollection();
h.Add("Content-Type", "application/x-www-form-urlencoded");
req.Set(targetUrl, webBrowser.selfRequest.Method, null, webBrowser.selfRequest.GetHeaderMap());
webBrowser.selfRequest = req;
}
//webBrowser.selfRequest.Set(targetUrl, webBrowser.selfRequest.Method, webBrowser.selfRequest.PostData, webBrowser.selfRequest.GetHeaderMap());
res = webBrowser.OnNewWindow(targetUrl);
if (res)
return res;
}
res = base.OnBeforePopup(browser, frame, targetUrl, targetFrameName, popupFeatures, windowInfo, ref client, settings, ref noJavascriptAccess);
return res;
}
protected override void OnAddressChange(CefBrowser browser, CefFrame frame, string url)
{
if (frame.IsMain)
{
webBrowser.OnUrlChange(url);
}
}
protected override void OnLoadEnd(CefBrowser browser, CefFrame frame, int httpStatusCode)
{
base.OnLoadEnd(browser, frame, httpStatusCode);
webBrowser.OnLoadEnd();
if (frame.IsMain)
{
//browser.SendProcessMessage(CefProcessId.Renderer, CefProcessMessage.Create("VisitorDocument"));
webBrowser.OnDocumentCompleted();
}
}
protected override bool OnContextMenuCommand(CefBrowser browser, CefFrame frame, CefContextMenuParams state, int commandId, CefEventFlags eventFlags)
{
foreach (CommandItem commItem in commandItems)
{
if (commItem.id == commandId)
{
commItem.item.PerformClick();
break;
}
}
return base.OnContextMenuCommand(browser, frame, state, commandId, eventFlags);
}
protected override void OnBeforeContextMenu(CefBrowser browser, CefFrame frame, CefContextMenuParams state, CefMenuModel model)
{
if (!webBrowser.menuVisible)
model.Clear();
int commandId = 1001;
if (webBrowser.ContextMenu != null)
{
foreach (MenuItem item in webBrowser.ContextMenu.MenuItems)
{
if (item.Text == "-")
model.AddSeparator();
else
model.AddItem(commandId, item.Text);
CommandItem commandItem = new CommandItem();
commandItem.id = commandId;
commandItem.item = item;
commandItems.Add(commandItem);
commandId++;
}
}
base.OnBeforeContextMenu(browser, frame, state, model);
}
protected override bool OnBeforeResourceLoad(CefBrowser browser, CefFrame frame, CefRequest request)
{
return base.OnBeforeResourceLoad(browser, frame, request);
}
/// <summary>
/// Called for global uncaught exceptions in a frame. Execution of this
/// callback is disabled by default. To enable set
/// CefSettings.uncaught_exception_stack_size > 0.
/// </summary>
protected virtual void OnUncaughtException(CefBrowser browser, CefFrame frame, CefV8Context context, CefV8Exception exception, CefV8StackTrace stackTrace)
{
}
/// <summary>
/// Called on the IO thread before a resource is loaded. To allow the resource
/// to load normally return NULL. To specify a handler for the resource return
/// a CefResourceHandler object. The |request| object should not be modified in
/// this callback.
/// </summary>
protected virtual CefResourceHandler GetResourceHandler(CefBrowser browser, CefFrame frame, CefRequest request)
{
return null;
}
/// <summary>
/// Called when the resource load for a navigation fails or is canceled.
/// |errorCode| is the error code number, |errorText| is the error text and
/// |failedUrl| is the URL that failed to load. See net\base\net_error_list.h
/// for complete descriptions of the error codes.
/// </summary>
protected virtual void OnLoadError(CefBrowser browser, CefFrame frame, CefErrorCode errorCode, string errorText, string failedUrl)
{
}
/// <summary>
/// Called on the IO thread when a resource load is redirected. The |old_url|
/// parameter will contain the old URL. The |new_url| parameter will contain
/// the new URL and can be changed if desired.
/// </summary>
protected virtual void OnResourceRedirect(CefBrowser browser, CefFrame frame, string oldUrl, ref string newUrl)
{
}
/// <summary>
/// Called on the UI thread before browser navigation. Return true to cancel
/// the navigation or false to allow the navigation to proceed. The |request|
/// object cannot be modified in this callback.
/// CefLoadHandler::OnLoadingStateChange will be called twice in all cases.
/// If the navigation is allowed CefLoadHandler::OnLoadStart and
/// CefLoadHandler::OnLoadEnd will be called. If the navigation is canceled
/// CefLoadHandler::OnLoadError will be called with an |errorCode| value of
/// ERR_ABORTED.
/// </summary>
protected virtual bool OnBeforeBrowse(CefBrowser browser, CefFrame frame, CefRequest request, bool isRedirect)
{
return false;
}
/// <summary>
/// Called when the context menu is dismissed irregardless of whether the menu
/// was empty or a command was selected.
/// </summary>
protected virtual void OnContextMenuDismissed(CefBrowser browser, CefFrame frame)
{
}
/// <summary>
/// Called to execute a command selected from the context menu. Return true if
/// the command was handled or false for the default implementation. See
/// cef_menu_id_t for the command ids that have default implementations. All
/// user-defined command ids should be between MENU_ID_USER_FIRST and
/// MENU_ID_USER_LAST. |params| will have the same values as what was passed to
/// OnBeforeContextMenu(). Do not keep a reference to |params| outside of this
/// callback.
/// </summary>
protected virtual bool OnContextMenuCommand(CefBrowser browser, CefFrame frame, CefContextMenuParams state, int commandId, CefEventFlags eventFlags)
{
return false;
}
/// <summary>
/// Called before a context menu is displayed. |params| provides information
/// about the context menu state. |model| initially contains the default
/// context menu. The |model| can be cleared to show no context menu or
/// modified to show a custom menu. Do not keep references to |params| or
/// |model| outside of this callback.
/// </summary>
protected virtual void OnBeforeContextMenu(CefBrowser browser, CefFrame frame, CefContextMenuParams state, CefMenuModel model)
{
}
/// <summary>
/// Called to execute a command selected from the context menu. Return true if
/// the command was handled or false for the default implementation. See
/// cef_menu_id_t for the command ids that have default implementations. All
/// user-defined command ids should be between MENU_ID_USER_FIRST and
/// MENU_ID_USER_LAST. |params| will have the same values as what was passed to
/// OnBeforeContextMenu(). Do not keep a reference to |params| outside of this
/// callback.
/// </summary>
protected virtual bool OnContextMenuCommand(CefBrowser browser, CefFrame frame, CefContextMenuParams state, int commandId, CefEventFlags eventFlags)
{
return(false);
}
/// <summary>
/// Called when a frame's address has changed.
/// </summary>
protected virtual void OnAddressChange(CefBrowser browser, CefFrame frame, string url)
{
}
protected override CefResourceHandler Create(CefBrowser browser, CefFrame frame, string schemeName, CefRequest request)
{
return new RequestResourceHandler();
}
/// <summary>
/// Called when the browser begins loading a frame. The |frame| value will
/// never be empty -- call the IsMain() method to check if this frame is the
/// main frame. Multiple frames may be loading at the same time. Sub-frames may
/// start or continue loading after the main frame load has ended. This method
/// may not be called for a particular frame if the load request for that frame
/// fails. For notification of overall browser load status use
/// OnLoadingStateChange instead.
/// </summary>
protected virtual void OnLoadStart(CefBrowser browser, CefFrame frame)
{
}
/// <summary>
/// Called when the browser begins loading a frame. The |frame| value will
/// never be empty -- call the IsMain() method to check if this frame is the
/// main frame. Multiple frames may be loading at the same time. Sub-frames may
/// start or continue loading after the main frame load has ended. This method
/// may not be called for a particular frame if the load request for that frame
/// fails. For notification of overall browser load status use
/// OnLoadingStateChange instead.
/// </summary>
protected virtual void OnLoadStart(CefBrowser browser, CefFrame frame)
{
}
/// <summary>
/// Returns the frame for this context. This method will return an empty
/// reference for WebWorker contexts.
/// </summary>
public CefFrame GetFrame()
{
return(CefFrame.FromNativeOrNull(
cef_v8context_t.get_frame(_self)
));
}
/// <summary>
/// Called immediately before the V8 context for a frame is released. No
/// references to the context should be kept after this method is called.
/// </summary>
protected virtual void OnContextReleased(CefBrowser browser, CefFrame frame, CefV8Context context)
{
}
/// <summary> /// Return a new resource handler instance to handle the request or an empty /// reference to allow default handling of the request. |browser| and |frame| /// will be the browser window and frame respectively that originated the /// request or NULL if the request did not originate from a browser window /// (for example, if the request came from CefURLRequest). The |request| object /// passed to this method will not contain cookie data. /// </summary> protected abstract CefResourceHandler Create(CefBrowser browser, CefFrame frame, string schemeName, CefRequest request);
/// <summary>
/// Called when the context menu is dismissed irregardless of whether the menu
/// was empty or a command was selected.
/// </summary>
protected virtual void OnContextMenuDismissed(CefBrowser browser, CefFrame frame)
{
}
protected override bool OnBeforeNavigation(CefBrowser browser, CefFrame frame, CefRequest request, CefNavigationType navigation_type, bool isRedirect)
{
return base.OnBeforeNavigation(browser, frame, request, navigation_type, isRedirect);
}
/// <summary>
/// Called on the IO thread when the browser needs credentials from the user.
/// |isProxy| indicates whether the host is a proxy server. |host| contains the
/// hostname and |port| contains the port number. Return true to continue the
/// request and call CefAuthCallback::Continue() when the authentication
/// information is available. Return false to cancel the request.
/// </summary>
protected virtual bool GetAuthCredentials(CefBrowser browser, CefFrame frame, bool isProxy, string host, int port, string realm, string scheme, CefAuthCallback callback)
{
return false;
}
/// <summary>
/// Called when a new node in the the browser gets focus. The |node| value may
/// be empty if no specific node has gained focus. The node object passed to
/// this method represents a snapshot of the DOM at the time this method is
/// executed. DOM objects are only valid for the scope of this method. Do not
/// keep references to or attempt to access any DOM objects outside the scope
/// of this method.
/// </summary>
protected virtual void OnFocusedNodeChanged(CefBrowser browser, CefFrame frame, CefDomNode node)
{
}
/// <summary>
/// Called on the IO thread before a resource request is loaded. The |request|
/// object may be modified. To cancel the request return true otherwise return
/// false.
/// </summary>
protected virtual bool OnBeforeResourceLoad(CefBrowser browser, CefFrame frame, CefRequest request)
{
return false;
}
/// <summary> /// Return a new resource handler instance to handle the request or an empty /// reference to allow default handling of the request. |browser| and |frame| /// will be the browser window and frame respectively that originated the /// request or NULL if the request did not originate from a browser window /// (for example, if the request came from CefURLRequest). The |request| object /// passed to this method will not contain cookie data. /// </summary> protected abstract CefResourceHandler Create(CefBrowser browser, CefFrame frame, string schemeName, CefRequest request);
protected override void OnContextCreated(CefBrowser browser, CefFrame frame, CefV8Context context)
{
/*缓存数据库*/
string extensionCode =
"var cachedb;" +
"if(!cachedb)" +
" cachedb={};" +
"(function() {" +
" cachedb.Connect = function(dbName) {" +
" native function Connect(dbName);" +
" return Connect(dbName);" +
" };" +
" cachedb.Execute = function(commandText) {" +
" native function Execute(commandText);" +
" return Execute(commandText);" +
" };" +
" cachedb.Query = function(commandText) {" +
" native function Query(commandText);" +
" return Query(commandText);" +
" };" +
" cachedb.Close = function() {" +
" native function Close();" +
" return Close();" +
" };"+
"})();";
CefV8Handler ExtendsionHandler = new CwbJsExtendHandler(browser);
CefRuntime.RegisterExtension("v8/cachedb", extensionCode, ExtendsionHandler);
/*屏幕分辨率设置*/
int w = webBrowser.screenWidth;
int h = webBrowser.screenHeight;
if (w > 0 && h > 0)
{
string jscode =
"Object.defineProperty(window.screen, 'height', {" +
" get: function() {"+
" return "+h+";"+
" }"+
"});"+
"Object.defineProperty(window.screen, 'width', {"+
" get: function() {"+
" return "+w+";"+
" }"+
"});";
frame.ExecuteJavaScript(jscode,frame.Url,0);
}
/*注册执行C#方法*/
CefV8Value globalValue = context.GetGlobal();
CefV8Handler callHandler = new CwbJsExtendHandler(browser);
CefV8Value callMethod = CefV8Value.CreateFunction("CallCSharpMethod", callHandler);
globalValue.SetValue("CallCSharpMethod", callMethod, CefV8PropertyAttribute.None);
base.OnContextCreated(browser, frame, context);
}
/// <summary>
/// Called when the browser is done loading a frame. The |frame| value will
/// never be empty -- call the IsMain() method to check if this frame is the
/// main frame. Multiple frames may be loading at the same time. Sub-frames may
/// start or continue loading after the main frame load has ended. This method
/// will always be called for all frames irrespective of whether the request
/// completes successfully.
/// </summary>
protected virtual void OnLoadEnd(CefBrowser browser, CefFrame frame, int httpStatusCode)
{
}
protected override void OnLoadStart(CefBrowser browser, CefFrame frame)
{
base.OnLoadStart(browser, frame);
webBrowser.OnLoadStart();
}
/// <summary>
/// Called before browser navigation. Return true to cancel the navigation or
/// false to allow the navigation to proceed. The |request| object cannot be
/// modified in this callback.
/// </summary>
protected virtual bool OnBeforeNavigation(CefBrowser browser, CefFrame frame, CefRequest request, CefNavigationType navigation_type, bool isRedirect)
{
return(false);
}
protected override void OnLoadError(CefBrowser browser, CefFrame frame, CefErrorCode errorCode, string errorText, string failedUrl)
{
base.OnLoadError(browser, frame, errorCode, errorText, failedUrl);
if (errorCode == CefErrorCode.Aborted) return;
webBrowser.OnLoadError(errorCode, errorText, failedUrl);
}
/// <summary>
/// Called immediately before the V8 context for a frame is released. No
/// references to the context should be kept after this method is called.
/// </summary>
protected virtual void OnContextReleased(CefBrowser browser, CefFrame frame, CefV8Context context)
{
}
protected override bool OnBeforeBrowse(CefBrowser browser, CefFrame frame, CefRequest request, bool isRedirect)
{
webBrowser.selfRequest = request;
return base.OnBeforeBrowse(browser, frame, request, isRedirect);
}
/// <summary>
/// Called for global uncaught exceptions in a frame. Execution of this
/// callback is disabled by default. To enable set
/// CefSettings.uncaught_exception_stack_size > 0.
/// </summary>
protected virtual void OnUncaughtException(CefBrowser browser, CefFrame frame, CefV8Context context, CefV8Exception exception, CefV8StackTrace stackTrace)
{
}
/// <summary>
/// Called on the IO thread before a new popup window is created. The |browser|
/// and |frame| parameters represent the source of the popup request. The
/// |target_url| and |target_frame_name| values may be empty if none were
/// specified with the request. The |popupFeatures| structure contains
/// information about the requested popup window. To allow creation of the
/// popup window optionally modify |windowInfo|, |client|, |settings| and
/// |no_javascript_access| and return false. To cancel creation of the popup
/// window return true. The |client| and |settings| values will default to the
/// source browser's values. The |no_javascript_access| value indicates whether
/// the new browser window should be scriptable and in the same process as the
/// source browser.
/// </summary>
protected virtual bool OnBeforePopup(CefBrowser browser, CefFrame frame, string targetUrl, string targetFrameName, CefPopupFeatures popupFeatures, CefWindowInfo windowInfo, ref CefClient client, CefBrowserSettings settings, ref bool noJavascriptAccess)
{
return false;
}
/// <summary>
/// Called when a new node in the the browser gets focus. The |node| value may
/// be empty if no specific node has gained focus. The node object passed to
/// this method represents a snapshot of the DOM at the time this method is
/// executed. DOM objects are only valid for the scope of this method. Do not
/// keep references to or attempt to access any DOM objects outside the scope
/// of this method.
/// </summary>
protected virtual void OnFocusedNodeChanged(CefBrowser browser, CefFrame frame, CefDomNode node)
{
}
/// <summary>
/// Called when the resource load for a navigation fails or is canceled.
/// |errorCode| is the error code number, |errorText| is the error text and
/// |failedUrl| is the URL that failed to load. See net\base\net_error_list.h
/// for complete descriptions of the error codes.
/// </summary>
protected virtual void OnLoadError(CefBrowser browser, CefFrame frame, CefErrorCode errorCode, string errorText, string failedUrl)
{
}
/// <summary>
/// Called before a context menu is displayed. |params| provides information
/// about the context menu state. |model| initially contains the default
/// context menu. The |model| can be cleared to show no context menu or
/// modified to show a custom menu. Do not keep references to |params| or
/// |model| outside of this callback.
/// </summary>
protected virtual void OnBeforeContextMenu(CefBrowser browser, CefFrame frame, CefContextMenuParams state, CefMenuModel model)
{
}
/// <summary>
/// Called when the browser is done loading a frame. The |frame| value will
/// never be empty -- call the IsMain() method to check if this frame is the
/// main frame. Multiple frames may be loading at the same time. Sub-frames may
/// start or continue loading after the main frame load has ended. This method
/// will always be called for all frames irrespective of whether the request
/// completes successfully.
/// </summary>
protected virtual void OnLoadEnd(CefBrowser browser, CefFrame frame, int httpStatusCode)
{
}
/// <summary>
/// Called before browser navigation. Return true to cancel the navigation or
/// false to allow the navigation to proceed. The |request| object cannot be
/// modified in this callback.
/// </summary>
protected virtual bool OnBeforeNavigation(CefBrowser browser, CefFrame frame, CefRequest request, CefNavigationType navigation_type, bool isRedirect)
{
return false;
}
