Z Capture Log

Z Capture Log插件简介

Z Capture Log插件描述

Captures the current active tab. A image capture is taken whenever the active tab completes loading , optionally, at intervals.

This is primarily a tool to experiment with Chromes tabs APIs captureVisibleTab method. Unless you are interested in postprocessing the image data  experimenting with different fmat, quality  delay settings, then this is probably not f you.

Due to the asynchronous nature of the JavaScript events, there is no absolute guarantee that the captured tab cresponds to the active tab that completed loading. No details about the tab (such as id, title  URL) are recded with the captures.

The image data are timestamped, sted locally in an IndexedDB table  can be downloaded f further processing etc. At present, there is no convenient mechanism f freeing up stage, other than by removing the extension; this will be added in a future version.

The following are controllable via options:

* PNG  JPEG fmat captures
* JPEG quality setting
* delay  tab load completion  capture request (milliseconds)
* (minimum) interval  periodic captures (seconds)

Note that some, maybe all, internal chrome:// pages cannot be captured from a service wker context.

This extensions extensive permissions are only used to call chrome.tabs.captureVisibleTab from a service wker that runs in the background. There are no mutating API calls except to write to the IndexedDB table  no data are sent  received by the extension.

Change Log

0.0.2

Include local ISO date/time as part of the downloaded file name.
Add some missing semicolons.

0.0.1 initial revision

                                

Z Capture Log插件离线安装方法

1.首先用户点击谷歌浏览器右上角的自定义及控制按钮，在下拉框中选择设置。

2.在打开的谷歌浏览器的扩展管理器最左侧选择扩展程序或直接输入：chrome://extensions/

3.找到自己已经下载好的Chrome离线安装文件xxx.crx，然后将其从资源管理器中拖动到Chrome的扩展管理界面中，这时候用户会发现在扩展管理器的中央部分中会多出一个”拖动以安装“的插件按钮。

4.下载 Z Capture LogChrome插件v0.0.2版本到本地。

5.勾选开发者模式，点击加载已解压的扩展程序，将文件夹选择即可安装插件。

注意：最新版本的chrome浏览器直接拖放安装时会出现“程序包无效CRX-HEADER-INVALID”的报错信息，参照这篇文章即可解决