org.cef.handler

接口 CefKeyboardHandler

所有已知实现类:

CefClient, CefKeyboardHandlerAdapter

public interface CefKeyboardHandler

Implement this interface to handle events related to keyboard input. The methods of this class will be called on the UI thread.

实现此接口以处理与键盘输入相关的事件。将在UI线程上调用此类的方法。

嵌套类概要

嵌套类

限定符和类型	接口和说明
static class	CefKeyboardHandler.CefKeyEvent Structure representing keyboard event information. 表示键盘事件信息的结构。

方法概要

限定符和类型	方法和说明
boolean	onKeyEvent(CefBrowser browser, CefKeyboardHandler.CefKeyEvent event) Called after the renderer and JavaScript in the page has had a chance to handle the event. 在渲染器和页面中的JavaScript有机会处理事件后调用。
boolean	onPreKeyEvent(CefBrowser browser, CefKeyboardHandler.CefKeyEvent event, BoolRef is_keyboard_shortcut) Called before a keyboard event is sent to the renderer. 在将键盘事件发送到渲染器之前调用。

方法详细资料

onKeyEvent

boolean onKeyEvent(CefBrowser browser,
                   CefKeyboardHandler.CefKeyEvent event)

Called after the renderer and JavaScript in the page has had a chance to handle the event.

在渲染器和页面中的JavaScript有机会处理事件后调用。

参数:

browser - the corresponding browser. - 相应的浏览器。

event - contains information about the keyboard event. - 包含有关键盘事件的信息。

返回:

true if the keyboard event was handled or false otherwise. 如果处理了键盘事件，则返回true，否则返回false。

onPreKeyEvent

boolean onPreKeyEvent(CefBrowser browser,
                      CefKeyboardHandler.CefKeyEvent event,
                      BoolRef is_keyboard_shortcut)

Called before a keyboard event is sent to the renderer.

在将键盘事件发送到渲染器之前调用。

参数:

browser - the corresponding browser. - 相应的浏览器。

event - contains information about the keyboard event. - 包含有关键盘事件的信息。

is_keyboard_shortcut - set to true and return false, if the event will be handled in OnKeyEvent() as a keyboard shortcut. - 如果事件将作为键盘快捷键在OnKeyEvent（）中处理，则设置为true并返回false。

返回:

true if the event was handled or false otherwise. 如果事件被处理则为true，否则为false。