cyf
106 lines
4.3 KiB
C#
106 lines
4.3 KiB
C#
namespace Cef3
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{
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Runtime.InteropServices;
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using Cef3.Interop;
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/// <summary>
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/// Implement this interface to handle events related to browser load status. The
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/// methods of this class will be called on the browser process UI thread or
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/// render process main thread (TID_RENDERER).
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/// </summary>
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public abstract unsafe partial class CefLoadHandler
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{
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private void on_loading_state_change(cef_load_handler_t* self, cef_browser_t* browser, int isLoading, int canGoBack, int canGoForward)
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{
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CheckSelf(self);
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var mBrowser = CefBrowser.FromNative(browser);
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OnLoadingStateChange(mBrowser, isLoading != 0, canGoBack != 0, canGoForward != 0);
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}
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/// <summary>
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/// Called when the loading state has changed. This callback will be executed
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/// twice -- once when loading is initiated either programmatically or by user
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/// action, and once when loading is terminated due to completion, cancellation
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/// of failure.
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/// </summary>
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protected virtual void OnLoadingStateChange(CefBrowser browser, bool isLoading, bool canGoBack, bool canGoForward)
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{
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}
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private void on_load_start(cef_load_handler_t* self, cef_browser_t* browser, cef_frame_t* frame)
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{
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CheckSelf(self);
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var m_browser = CefBrowser.FromNative(browser);
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var m_frame = CefFrame.FromNative(frame);
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OnLoadStart(m_browser, m_frame);
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}
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/// <summary>
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/// Called when the browser begins loading a frame. The |frame| value will
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/// never be empty -- call the IsMain() method to check if this frame is the
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/// main frame. Multiple frames may be loading at the same time. Sub-frames may
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/// start or continue loading after the main frame load has ended. This method
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/// may not be called for a particular frame if the load request for that frame
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/// fails. For notification of overall browser load status use
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/// OnLoadingStateChange instead.
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/// </summary>
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protected virtual void OnLoadStart(CefBrowser browser, CefFrame frame)
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{
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}
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private void on_load_end(cef_load_handler_t* self, cef_browser_t* browser, cef_frame_t* frame, int httpStatusCode)
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{
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CheckSelf(self);
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var m_browser = CefBrowser.FromNative(browser);
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var m_frame = CefFrame.FromNative(frame);
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OnLoadEnd(m_browser, m_frame, httpStatusCode);
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}
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/// <summary>
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/// Called when the browser is done loading a frame. The |frame| value will
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/// never be empty -- call the IsMain() method to check if this frame is the
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/// main frame. Multiple frames may be loading at the same time. Sub-frames may
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/// start or continue loading after the main frame load has ended. This method
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/// will always be called for all frames irrespective of whether the request
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/// completes successfully.
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/// </summary>
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protected virtual void OnLoadEnd(CefBrowser browser, CefFrame frame, int httpStatusCode)
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{
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}
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private void on_load_error(cef_load_handler_t* self, cef_browser_t* browser, cef_frame_t* frame, CefErrorCode errorCode, cef_string_t* errorText, cef_string_t* failedUrl)
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{
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CheckSelf(self);
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var m_browser = CefBrowser.FromNative(browser);
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var m_frame = CefFrame.FromNative(frame);
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var m_errorText = cef_string_t.ToString(errorText);
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var m_failedUrl = cef_string_t.ToString(failedUrl);
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OnLoadError(m_browser, m_frame, errorCode, m_errorText, m_failedUrl);
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}
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/// <summary>
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/// Called when the resource load for a navigation fails or is canceled.
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/// |errorCode| is the error code number, |errorText| is the error text and
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/// |failedUrl| is the URL that failed to load. See net\base\net_error_list.h
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/// for complete descriptions of the error codes.
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/// </summary>
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protected virtual void OnLoadError(CefBrowser browser, CefFrame frame, CefErrorCode errorCode, string errorText, string failedUrl)
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{
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}
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}
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}
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