org.cef.handler

接口 CefPrintHandler

所有超级接口:

CefNative

所有已知实现类:

CefPrintHandlerAdapter

public interface CefPrintHandler
extends CefNative

Implement this interface to handle printing on Linux. The methods of this class will be called on the browser process UI thread.

实现此接口以处理Linux上的打印。将在浏览器进程UI线程上调用此类的方法。

方法概要

限定符和类型	方法和说明
java.awt.Dimension	getPdfPaperSize(int deviceUnitsPerInch) Called when PrintToPDF is requested for a browser. 在为浏览器请求PrintToPDF时调用。
boolean	onPrintDialog(boolean has_selection, CefPrintDialogCallback callback) Show the print dialog. 显示打印对话框。
boolean	onPrintJob(java.lang.String document_name, java.lang.String pdf_file_path, CefPrintJobCallback callback) Send the print job to the printer. 将打印作业发送到打印机。
void	onPrintReset() Reset client state related to printing. 重置与打印相关的客户端状态。
void	onPrintSettings(CefPrintSettings settings, boolean get_defaults) Synchronize |settings| with client state. 同步|设置|与客户国家。
void	onPrintStart(CefBrowser browser) Called when printing has started for the specified |browser|. 在指定的浏览器|开始打印时调用。

从接口继承的方法 org.cef.callback.CefNative

getNativeRef, setNativeRef

方法详细资料

getPdfPaperSize

java.awt.Dimension getPdfPaperSize(int deviceUnitsPerInch)

Called when PrintToPDF is requested for a browser. Returns the page size (as measured in microns) to use.

在为浏览器请求PrintToPDF时调用。返回要使用的页面大小（以微米为单位）。

参数:

deviceUnitsPerInch - The DPI of the print. Use this to calculate the page size to use. - 印刷品的DPI。使用此选项计算要使用的页面大小。

返回:

The page size 页面大小

onPrintDialog

boolean onPrintDialog(boolean has_selection,
                      CefPrintDialogCallback callback)

Show the print dialog. Execute |callback| once the dialog is dismissed. Return true if the dialog will be displayed or false to cancel the printing immediately.

显示打印对话框。执行|回调|一旦对话被解雇。如果将显示对话框，则返回true;如果立即取消打印，则返回false。

onPrintJob

boolean onPrintJob(java.lang.String document_name,
                   java.lang.String pdf_file_path,
                   CefPrintJobCallback callback)

Send the print job to the printer. Execute |callback| once the job is completed. Return true if the job will proceed or false to cancel the job immediately.

将打印作业发送到打印机。执行|回调|一旦工作完成。如果作业将继续，则返回true;如果立即取消作业，则返回false。

onPrintReset

void onPrintReset()

Reset client state related to printing.

重置与打印相关的客户端状态。

onPrintSettings

void onPrintSettings(CefPrintSettings settings,
                     boolean get_defaults)

Synchronize |settings| with client state. If |get_defaults| is true then populate |settings| with the default print settings. Do not keep a reference to |settings| outside of this callback.

同步|设置|与客户国家。如果| get_defaults |是的，然后填充|设置|使用默认打印设置。不要保留对| settings |的引用在这个回调之外。

onPrintStart

void onPrintStart(CefBrowser browser)

Called when printing has started for the specified |browser|. This method will be called before the other onPrint*() methods and irrespective of how printing was initiated (e.g. CefBrowser::print(), JavaScript window.print() or PDF extension print button).

在指定的浏览器|开始打印时调用。此方法将在其他onPrint *（）方法之前调用，而不管如何启动打印（例如CefBrowser :: print（），JavaScript window.print（）或PDF扩展打印按钮）。