cyf
91 lines
3.5 KiB
C#
91 lines
3.5 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 context menu events. The methods of this
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/// class will be called on the UI thread.
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/// </summary>
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public abstract unsafe partial class CefContextMenuHandler
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{
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private void on_before_context_menu(cef_context_menu_handler_t* self, cef_browser_t* browser, cef_frame_t* frame, cef_context_menu_params_t* @params, cef_menu_model_t* model)
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{
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CheckSelf(self);
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var mBrowser = CefBrowser.FromNative(browser);
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var mFrame = CefFrame.FromNative(frame);
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var mState = CefContextMenuParams.FromNative(@params);
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var mModel = CefMenuModel.FromNative(model);
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OnBeforeContextMenu(mBrowser, mFrame, mState, mModel);
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mState.Dispose();
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mModel.Dispose();
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}
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/// <summary>
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/// Called before a context menu is displayed. |params| provides information
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/// about the context menu state. |model| initially contains the default
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/// context menu. The |model| can be cleared to show no context menu or
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/// modified to show a custom menu. Do not keep references to |params| or
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/// |model| outside of this callback.
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/// </summary>
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protected virtual void OnBeforeContextMenu(CefBrowser browser, CefFrame frame, CefContextMenuParams state, CefMenuModel model)
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{
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}
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private int on_context_menu_command(cef_context_menu_handler_t* self, cef_browser_t* browser, cef_frame_t* frame, cef_context_menu_params_t* @params, int command_id, CefEventFlags event_flags)
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{
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CheckSelf(self);
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var mBrowser = CefBrowser.FromNative(browser);
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var mFrame = CefFrame.FromNative(frame);
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var mState = CefContextMenuParams.FromNative(@params);
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var result = OnContextMenuCommand(mBrowser, mFrame, mState, command_id, event_flags);
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mState.Dispose();
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return result ? 1 : 0;
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}
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/// <summary>
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/// Called to execute a command selected from the context menu. Return true if
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/// the command was handled or false for the default implementation. See
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/// cef_menu_id_t for the command ids that have default implementations. All
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/// user-defined command ids should be between MENU_ID_USER_FIRST and
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/// MENU_ID_USER_LAST. |params| will have the same values as what was passed to
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/// OnBeforeContextMenu(). Do not keep a reference to |params| outside of this
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/// callback.
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/// </summary>
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protected virtual bool OnContextMenuCommand(CefBrowser browser, CefFrame frame, CefContextMenuParams state, int commandId, CefEventFlags eventFlags)
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{
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return false;
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}
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private void on_context_menu_dismissed(cef_context_menu_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 mBrowser = CefBrowser.FromNative(browser);
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var mFrame = CefFrame.FromNative(frame);
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OnContextMenuDismissed(mBrowser, mFrame);
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}
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/// <summary>
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/// Called when the context menu is dismissed irregardless of whether the menu
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/// was empty or a command was selected.
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/// </summary>
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protected virtual void OnContextMenuDismissed(CefBrowser browser, CefFrame frame)
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{
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}
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}
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}
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