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- import os, urllib
- from subprocess import list2cmdline
-
- import wx
-
- from pwiki.StringOps import mbcsEnc
-
- WIKIDPAD_PLUGIN = (("InsertionByKey", 1), ("Options", 1))
-
- def describeInsertionKeys(ver, app):
- """
- API function for "InsertionByKey" plugins
- Returns a sequence of tuples describing the supported
- insertion keys. Each tuple has the form (insKey, exportTypes, handlerFactory)
- where insKey is the insertion key handled, exportTypes is a sequence of
- strings describing the supported export types and handlerFactory is
- a factory function (normally a class) taking the wxApp object as
- parameter and returning a handler object fulfilling the protocol
- for "insertion by key" (see EqnHandler as example).
-
- ver -- API version (can only be 1 currently)
- app -- wxApp object
- """
- return ((u"eqn", ("html_single", "html_previewWX", "html_preview",
- "html_multi"), EqnHandler),)
-
-
- class EqnHandler:
- """
- Class fulfilling the "insertion by key" protocol.
- """
- def __init__(self, app):
- self.app = app
- self.mimetexExe = None
-
- def taskStart(self, exporter, exportType):
- """
- This is called before any call to createContent() during an
- export task.
- An export task can be a single HTML page for
- preview or a single page or a set of pages for export.
- exporter -- Exporter object calling the handler
- exportType -- string describing the export type
-
- Calls to createContent() will only happen after a
- call to taskStart() and before the call to taskEnd()
- """
- # Find MimeTeX executable by configuration setting
- self.mimetexExe = self.app.getGlobalConfig().get("main",
- "plugin_mimeTex_exePath", "")
-
-
- def taskEnd(self):
- """
- Called after export task ended and after the last call to
- createContent().
- """
- pass
-
-
- def createContent(self, exporter, exportType, insToken):
- """
- Handle an insertion and create the appropriate content.
-
- exporter -- Exporter object calling the handler
- exportType -- string describing the export type
- insToken -- insertion token to create content for (see also
- PageAst.Insertion)
-
- An insertion token has the following member variables:
- key: insertion key (unistring)
- value: value of an insertion (unistring)
- appendices: sequence of strings with the appendices
-
- Meaning and type of return value is solely defined by the type
- of the calling exporter.
-
- For HtmlXmlExporter a unistring is returned with the HTML code
- to insert instead of the insertion.
- """
- bstr = urllib.quote(mbcsEnc(insToken.value, "replace")[0])
-
- if not bstr:
- # Nothing in, nothing out
- return u""
-
- if self.mimetexExe == "":
- # No path to MimeTeX executable -> show message
- return "<pre>[Please set path to MimeTeX executable]</pre>"
-
- # Prepare CGI environment. MimeTeX needs only "QUERY_STRING" environment
- # variable
- os.environ["QUERY_STRING"] = bstr
-
- cmdline = list2cmdline((self.mimetexExe,))
-
- # Run MimeTeX process
- childIn, childOut = os.popen2(cmdline, "b")
-
- # Read stdout of process entirely
- response = childOut.read()
-
- # Cut off HTTP header (may need changes for non-Windows OS)
- try:
- response = response[(response.index("\n\n") + 2):]
- except ValueError:
- return "<pre>[Invalid response from MimeTeX]</pre>"
-
- # Get exporters temporary file set (manages creation and deletion of
- # temporary files)
- tfs = exporter.getTempFileSet()
-
- # Create .gif file out of returned data and retrieve URL for the file
- pythonUrl = (exportType != "html_previewWX")
- url = tfs.createTempUrl(response, ".gif", pythonUrl=pythonUrl)
-
- # Return appropriate HTML code for the image
- if exportType == "html_previewWX":
- # Workaround for internal HTML renderer
- return u'<img src="%s" border="0" align="bottom" /> ' % url
- else:
- return u'<img src="%s" border="0" align="bottom" />' % url
-
-
- def getExtraFeatures(self):
- """
- Returns a list of bytestrings describing additional features supported
- by the plugin. Currently not specified further.
- """
- return ()
-
-
-
-
- def registerOptions(ver, app):
- """
- API function for "Options" plugins
- Register configuration options and their GUI presentation
- ver -- API version (can only be 1 currently)
- app -- wxApp object
- """
- # Register option
- app.getDefaultGlobalConfigDict()[("main", "plugin_mimeTex_exePath")] = u""
- # Register panel in options dialog
- app.addOptionsDlgPanel(MimeTexOptionsPanel, u" MimeTeX")
-
-
- class MimeTexOptionsPanel(wx.Panel):
- def __init__(self, parent, optionsDlg, app):
- """
- Called when "Options" dialog is opened to show the panel.
- Transfer here all options from the configuration file into the
- text fields, check boxes, ...
- """
- wx.Panel.__init__(self, parent)
- self.app = app
-
- pt = self.app.getGlobalConfig().get("main", "plugin_mimeTex_exePath", "")
-
- self.tfPath = wx.TextCtrl(self, -1, pt)
-
- mainsizer = wx.BoxSizer(wx.VERTICAL)
-
- inputsizer = wx.BoxSizer(wx.HORIZONTAL)
- inputsizer.Add(wx.StaticText(self, -1, "Path to MimeTeX:"), 0,
- wx.ALL | wx.EXPAND, 5)
- inputsizer.Add(self.tfPath, 1, wx.ALL | wx.EXPAND, 5)
- mainsizer.Add(inputsizer, 0, wx.EXPAND)
-
- self.SetSizer(mainsizer)
- self.Fit()
-
- def setVisible(self, vis):
- """
- Called when panel is shown or hidden. The actual wxWindow.Show()
- function is called automatically.
-
- If a panel is visible and becomes invisible because another panel is
- selected, the plugin can veto by returning False.
- When becoming visible, the return value is ignored.
- """
- return True
-
- def checkOk(self):
- """
- Called when "OK" is pressed in dialog. The plugin should check here if
- all input values are valid. If not, it should return False, then the
- Options dialog automatically shows this panel.
-
- There should be a visual indication about what is wrong (e.g. red
- background in text field). Be sure to reset the visual indication
- if field is valid again.
- """
- return True
-
- def handleOk(self):
- """
- This is called if checkOk() returned True for all panels. Transfer here
- all values from text fields, checkboxes, ... into the configuration
- file.
- """
- pt = self.tfPath.GetValue()
-
- self.app.getGlobalConfig().set("main", "plugin_mimeTex_exePath", pt)
-
-
-