情况说明：Python 3.7，GTK 3.0，PyGObjects 3.34.0 Webkit2 4.0
我有一个对话框窗口，其中的GtkNotebook包含2个标签。1.选项卡包含可编辑的Webkit Web视图，2.选项卡包含textview。类构造函数中提供的参数之一是有效的HTML代码段，它是字符串变量
因此，我希望在任何窗口中进行的任何更改都会自动反映在其他窗口中。
当前问题：使用提供的解决方案here，在切换记事本选项卡时，将放弃在Webview中进行的任何先前更改。调试显示，通过上述调用获得的html不包含更改。
任何想法在逻辑或处理本身中可能缺少什么？
供参考，对话框代码如下：
# -*- coding: utf-8 -*-
import gi
gi.require_version('Gtk', '3.0')
gi.require_version('WebKit2', '4.0')
from gi.repository import Gtk, WebKit2
class DescriptionDialog:
def __init__(self, *args):
# GTK Builder
self._builder = args[0]
self._builder.add_from_file("UI/GUI/description.glade")
self.dialog = self._builder.get_object("descriptionDialog")
self._textView = self._builder.get_object("textview1")
self.webViewContainer = self._builder.get_object("WebViewContainer")
self.browserHolder = WebKit2.WebView()
self.browserHolder.set_editable(True)
self.webViewContainer.add(self.browserHolder)
self.browserHolder.show()
# valid html snippet, held as string
self.__buffer_orig__ = args[2]
self.buffer = args[2]
self.browserHolder.load_html(self.buffer)
self._builder.connect_signals(
{
"onDialogClose": self.onDialogClose,
"pageChangeNotebook": self.onPageChange
})
self.dialog.set_transient_for(self._builder.get_object("MainWindow"))
self.textBuffer = self._builder.get_object("textbuffer1")
self.textBuffer.set_text(self.buffer)
self.dialog.show()
def onDialogClose(self, handler):
self.dialog.hide()
def onPageChange(self, notebook=None, scrolledWindow=None, pageNumber=0):
if pageNumber == 0:
self.buffer = self.textBuffer.get_text(self.textBuffer.get_start_iter(), self.textBuffer.get_end_iter(), True)
self.browserHolder.load_html(self.buffer)
if pageNumber == 1:
self.browserHolder.get_main_resource().get_data(None, self.getDataFromResource, None)
def getDataFromResource(self, resource, result, userData=None):
# Changed html is not returned here
self.buffer = str(resource.get_data_finish(result).decode("utf-8"))
self.textBuffer.set_text(self.buffer)
对于其他找到此线程的互联网用户。目前，在给定的版本中，这是我得出的工作结果。此实现的主要思想如下-使用支持WebView的Javascript引擎获取<body>标签的内容。然后，解析Javascript结果以供以后使用此值。
def onPageChange(self, notebook=None, scrolledWindow=None, pageNumber=0):
if pageNumber == 0:
self.buffer = self.textBuffer.get_text(self.textBuffer.get_start_iter(), self.textBuffer.get_end_iter(), True)
self.browserHolder.load_html(self.buffer)
if pageNumber == 1:
# use JavaScript to get the html contained in rendered body tag
script = "document.body.innerHTML;"
# Execute JavasScript via WebKit2.WebView bindings.
# Result can be obtained asynchronously, via callback method
self.browserHolder.run_javascript(script, None, self.getJSStatus, None)
def getJSStatus(self, resource, result, userData=None):
# Sample adapted and simplified from here:
# https://lazka.github.io/pgi-docs/#WebKit2-4.0/classes/WebView.html#WebKit2.WebView.run_javascript_finish
# Get the JavaScript result
data = self.browserHolder.run_javascript_finish(result)
# Get value from result, and convert it to string
self.buffer = data.get_js_value().to_string()
self.textBuffer.set_text(self.buffer)