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devenv.py
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devenv.py
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#appModules/devenv.py
#A part of NonVisual Desktop Access (NVDA)
#This file is covered by the GNU General Public License.
#See the file COPYING for more details.
#Copyright (C) 2010 Soronel Haetir <soronel.haetir@gmail.com>
#
# Suggestions from James Teh <jamie@nvaccess.org> have been used.
#
# Visual Studio 2005/2008 support for NVDA.
# I believe this code should work for VS2002/2003 as well but have no way of testing that.
# I have confirmed this script requires at least Visual Studio Standard, as the Express editions
# don't register themselves with the running object table.
# I have tried several means of getting around this, so far without success.
#
# I started with revision 3493 of the main NVDA branch for this work.
#
# !!! IMPORTANT !!!
#
# I had to modify many of the members of IVsTextManager and IVsTextView to cut down on dependencies.
# Specifically any interface pointers other than IVsTextView have been changed to IUnknown
# Also, many structure and enumerations have been replaced with c_int.
#
# If NVDA becomes more dependant on the Visual Studio SDK interfaces the embedded wrappers
# should be dropped in favor of the type library.
#
# !!! END OF IMPORTANT INFORMATION !!!
#
# The Visual Studio 2008 SDK is required if you wish
# to generate python type wrappers. It can be downloaded at:
# http://www.microsoft.com/downloads/details.aspx?familyid=59EC6EC3-4273-48A3-BA25-DC925A45584D&displaylang=en
# Use the MIDL compiler to build textmgr.tlb.
# From \Program Files\Microsoft Visual Studio 2008 SDK\VisualStudioIntegration\Common\IDL:
# midl /I ..\inc textmgr.idl
# and then copy the resulting typelib to your sources\typelibs directory.
#
import ctypes
import objbase
from comtypes import IUnknown, IServiceProvider , GUID, COMMETHOD, HRESULT, BSTR
from ctypes import POINTER, c_int, c_short, c_ushort, c_ulong
import comtypes.client.dynamic
from comtypes.automation import IDispatch
from logHandler import log
import textInfos.offsets
from NVDAObjects.behaviors import EditableTextWithoutAutoSelectDetection
from NVDAObjects.window import Window
from NVDAObjects.window import DisplayModelEditableText
import appModuleHandler
#
# A few helpful constants
#
VsRootWindowClassName="wndclass_desked_gsk"
VsTextEditPaneClassName="VsTextEditPane"
SVsTextManager = GUID('{F5E7E71D-1401-11D1-883B-0000F87579D2}')
VsVersion_None = 0
VsVersion_2002 = 1
VsVersion_2003 = 2
VsVersion_2005 = 3
VsVersion_2008 = 4
# Possible values of the VS .Type property of VS windows.
# According to the docs this property should not be used but I have not been able to determine all of the needed values
# of the .Kind property which is the suggested alternative.
#
# I don't have a type library or header defining the VsWindowType enumeration so only .Type values
# I've actually encountered are defined.
# Known missing values are:
# CodeWindow, Designer, Browser, Watch, Locals,
# SolutionExplorer, Properties, Find, FindReplace, Toolbox, LinkedWindowFrame, MainWindow, Preview,
# ColorPalettte, ToolWindowTaskList, Autos, CallStack, Threads, DocumentOutline, RunningDocuments
# Most of these host controls which should hopefully be the "real" window by the time any text needs to be rendered.
VsWindowTypeCommand = 15
VsWindowTypeDocument = 16
VsWindowTypeOutput = 17
# Scroll bar selector
SB_HORZ = 0
SB_VERT = 1
class AppModule(appModuleHandler.AppModule):
def chooseNVDAObjectOverlayClasses(self, obj, clsList):
# Only use this overlay class if the top level automation object for the IDE can be retrieved,
# as it will not work otherwise.
if obj.windowClassName == VsTextEditPaneClassName and self._getDTE():
try:
clsList.remove(DisplayModelEditableText)
except ValueError:
pass
clsList.insert(0, VsTextEditPane)
def _getDTE(self):
# Return the already fetched instance if there is one.
try:
if self._DTE:
return self._DTE
except AttributeError:
pass
# Retrieve and cache the top level automation object for the IDE
DTEVersion = VsVersion_None
bctx = objbase.CreateBindCtx()
ROT = objbase.GetRunningObjectTable()
for mon in ROT:
# Test for the strings Visual Studio may have registered with.
displayName = mon.GetDisplayName(bctx, None)
if "!VisualStudio.DTE.9.0:%d"%self.processID==displayName:
DTEVersion=VsVersion_2008
elif "!VisualStudio.DTE.8.0:%d"%self.processID==displayName:
DTEVersion = VsVersion_2005
elif "!VisualStudio.DTE.7.1:%d"%self.processID==displayName:
DTEVersion = VsVersion_2003
elif "!VisualStudio.DTE:%d"%self.processID==displayName:
DTEVersion = VsVersion_2002
if DTEVersion != VsVersion_None:
self._DTEVersion = DTEVersion
self._DTE = comtypes.client.dynamic.Dispatch(ROT.GetObject(mon).QueryInterface(IDispatch))
break
else:
# None found.
log.debugWarning("No top level automation object found")
self._DTE = None
self._DTEVersion = VsVersion_None
# Loop has completed
return self._DTE
def _getTextManager(self):
try:
if self._textManager:
return self._textManager
except AttributeError:
pass
serviceProvider = self._getDTE().QueryInterface(comtypes.IServiceProvider)
self._textManager = serviceProvider.QueryService(SVsTextManager, IVsTextManager)
return self._textManager
class VsTextEditPaneTextInfo(textInfos.offsets.OffsetsTextInfo):
def _InformUnsupportedWindowType(self,type):
log.error("An unsupported window type `%d' was encountered, please inform the NVDA development team." %type)
raise NotImplementedError
def _getSelectionObject(self):
Selection = None
if self._window.Type == VsWindowTypeDocument:
Selection = self._window.Selection
elif self._window.Type == VsWindowTypeOutput:
Selection = self._window.Object.ActivePane.TextDocument.Selection
elif self._window.Type==VsWindowTypeCommand:
Selection = self._window.Object.TextDocument.Selection
else:
self._InformUnsupportedWindowType(self._window.Type)
return Selection
def _createEditPoint(self):
return self._getSelectionObject().ActivePoint.CreateEditPoint()
def _getOffsetFromPoint(self,x,y):
yMinUnit, yMaxUnit, yVisible, yFirstVisible = self._textView.GetScrollInfo(SB_VERT)
hMinUnit, hMaxUnit, hVisible, hFirstVisible = self._textView.GetScrollInfo(SB_HORZ)
# These should probably be cached as they are fairly unlikely to change, but ...
lineHeight = self._textView.GetLineHeight()
charWidth = self._window.Width / hVisible
offsetLine = (y - self._window.Top) / lineHeight + yFirstVisible
offsetChar = (x - self._window.Left) / charWidth + hFirstVisible
return self._textView.GetNearestPosition(offsetLine, offsetChar)[0]
def __init__(self, obj, position):
self._window = obj._window
self._textView = obj._textView
super(VsTextEditPaneTextInfo, self).__init__(obj, position)
def _getCaretOffset(self):
return self._createEditPoint().AbsoluteCharOffset
def _setCaretOffset(self,offset):
self._getSelectionObject().MoveToAbsoluteOffset(offset)
def _setSelectionOffsets(self,start,end):
Selection = self._getSelectionObject()
Selection.MoveToAbsoluteOffset(start)
Selection.MoveToAbsoluteOffset(end,True)
def _getSelectionOffsets(self):
selection = self._getSelectionObject()
startPos = selection.ActivePoint.CreateEditPoint().AbsoluteCharOffset - 1
endPos = selection.AnchorPoint.CreateEditPoint().AbsoluteCharOffset - 1
return (startPos,endPos)
def _getTextRange(self,start,end):
editPointStart = self._createEditPoint()
editPointStart.StartOfDocument()
if start:
editPointStart.MoveToAbsoluteOffset(start)
else:
start = 1
return editPointStart.GetText(end-start)
def _getWordOffsets(self,startOffset):
editPointStart = self._createEditPoint()
editPointEnd = editPointStart.CreateEditPoint()
editPointEnd.WordRight()
return editPointStart.AbsoluteCharOffset,editPointEnd.AbsoluteCharOffset
def _getLineOffsets(self,offset):
editPointStart = self._createEditPoint()
editPointStart.MoveToAbsoluteOffset(offset)
editPointStart.StartOfLine()
editPointEnd = editPointStart.CreateEditPoint()
editPointEnd.EndOfLine()
return (editPointStart.AbsoluteCharOffset,editPointEnd.AbsoluteCharOffset)
def _getLineNumFromOffset(self,offset):
editPoint = self._createEditPoint()
editPoint.MoveToAbsoluteOffset(offset)
return editPoint.Line
def _getStoryLength(self):
editPoint = self._createEditPoint()
editPoint.EndOfDocument()
return editPoint.AbsoluteCharOffset
class VsTextEditPane(EditableTextWithoutAutoSelectDetection,Window):
TextInfo = VsTextEditPaneTextInfo
def initOverlayClass(self):
self._window = self.appModule._getDTE().ActiveWindow
self.location = (self._window.Top,self._window.Left,self._window.Width,self._window.Height)
self._textView = self.appModule._getTextManager().GetActiveView(True, None)
def event_valueChange(self):
pass
class IVsTextView(IUnknown):
_case_insensitive_ = True
_iid_ = GUID('{BB23A14B-7C61-469A-9890-A95648CED5E6}')
_idlflags_ = []
class IVsTextManager(comtypes.IUnknown):
_case_insensitive_ = True
_iid_ = GUID('{909F83E3-B3FC-4BBF-8820-64378744B39B}')
_idlflags_ = []
IVsTextManager._methods_ = [
COMMETHOD([], HRESULT, 'RegisterView',
( ['in'], POINTER(IVsTextView), 'pView' ),
( ['in'], POINTER(IUnknown), 'pBuffer' )),
COMMETHOD([], HRESULT, 'UnregisterView',
( ['in'], POINTER(IVsTextView), 'pView' )),
COMMETHOD([], HRESULT, 'EnumViews',
( ['in'], POINTER(IUnknown), 'pBuffer' ),
( ['out'], POINTER(POINTER(IUnknown)), 'ppEnum' )),
COMMETHOD([], HRESULT, 'CreateSelectionAction',
( ['in'], POINTER(IUnknown), 'pBuffer' ),
( ['out'], POINTER(POINTER(IUnknown)), 'ppAction' )),
COMMETHOD([], HRESULT, 'MapFilenameToLanguageSID',
( ['in'], POINTER(c_ushort), 'pszFileName' ),
( ['out'], POINTER(GUID), 'pguidLangSID' )),
COMMETHOD([], HRESULT, 'GetRegisteredMarkerTypeID',
( ['in'], POINTER(GUID), 'pguidMarker' ),
( ['out'], POINTER(c_int), 'piMarkerTypeID' )),
COMMETHOD([], HRESULT, 'GetMarkerTypeInterface',
( ['in'], c_int, 'iMarkerTypeID' ),
( ['out'], POINTER(POINTER(IUnknown)), 'ppMarkerType' )),
COMMETHOD([], HRESULT, 'GetMarkerTypeCount',
( ['out'], POINTER(c_int), 'piMarkerTypeCount' )),
COMMETHOD([], HRESULT, 'GetActiveView',
( ['in'], c_int, 'fMustHaveFocus' ),
( ['in'], POINTER(IUnknown), 'pBuffer' ),
( ['out'], POINTER(POINTER(IVsTextView)), 'ppView' )),
COMMETHOD([], HRESULT, 'GetUserPreferences',
( ['out'], POINTER(c_int), 'pViewPrefs' ),
( ['out'], POINTER(c_int), 'pFramePrefs' ),
( ['in', 'out'], POINTER(c_int), 'pLangPrefs' ),
( ['in', 'out'], POINTER(c_int), 'pColorPrefs' )),
COMMETHOD([], HRESULT, 'SetUserPreferences',
( ['in'], POINTER(c_int), 'pViewPrefs' ),
( ['in'], POINTER(c_int), 'pFramePrefs' ),
( ['in'], POINTER(c_int), 'pLangPrefs' ),
( ['in'], POINTER(c_int), 'pColorPrefs' )),
COMMETHOD([], HRESULT, 'SetFileChangeAdvise',
( ['in'], POINTER(c_ushort), 'pszFileName' ),
( ['in'], c_int, 'fStart' )),
COMMETHOD([], HRESULT, 'SuspendFileChangeAdvise',
( ['in'], POINTER(c_ushort), 'pszFileName' ),
( ['in'], c_int, 'fSuspend' )),
COMMETHOD([], HRESULT, 'NavigateToPosition',
( ['in'], POINTER(IUnknown), 'pBuffer' ),
( ['in'], POINTER(GUID), 'guidDocViewType' ),
( ['in'], c_int, 'iPos' ),
( ['in'], c_int, 'iLen' )),
COMMETHOD([], HRESULT, 'NavigateToLineAndColumn',
( ['in'], POINTER(IUnknown), 'pBuffer' ),
( ['in'], POINTER(GUID), 'guidDocViewType' ),
( ['in'], c_int, 'iStartRow' ),
( ['in'], c_int, 'iStartIndex' ),
( ['in'], c_int, 'iEndRow' ),
( ['in'], c_int, 'iEndIndex' )),
COMMETHOD([], HRESULT, 'GetBufferSccStatus',
( ['in'], POINTER(IUnknown), 'pBufData' ),
( ['out'], POINTER(c_int), 'pbNonEditable' )),
COMMETHOD([], HRESULT, 'RegisterBuffer',
( ['in'], POINTER(IUnknown), 'pBuffer' )),
COMMETHOD([], HRESULT, 'UnregisterBuffer',
( ['in'], POINTER(IUnknown), 'pBuffer' )),
COMMETHOD([], HRESULT, 'EnumBuffers',
( ['out'], POINTER(POINTER(IUnknown)), 'ppEnum' )),
COMMETHOD([], HRESULT, 'GetPerLanguagePreferences',
( ['out'], POINTER(c_int), 'pLangPrefs' )),
COMMETHOD([], HRESULT, 'SetPerLanguagePreferences',
( ['in'], POINTER(c_int), 'pLangPrefs' )),
COMMETHOD([], HRESULT, 'AttemptToCheckOutBufferFromScc',
( ['in'], POINTER(IUnknown), 'pBufData' ),
( ['out'], POINTER(c_int), 'pfCheckoutSucceeded' )),
COMMETHOD([], HRESULT, 'GetShortcutManager',
( ['out'], POINTER(POINTER(IUnknown)), 'ppShortcutMgr' )),
COMMETHOD([], HRESULT, 'RegisterIndependentView',
( ['in'], POINTER(IUnknown), 'punk' ),
( ['in'], POINTER(IUnknown), 'pBuffer' )),
COMMETHOD([], HRESULT, 'UnregisterIndependentView',
( ['in'], POINTER(IUnknown), 'punk' ),
( ['in'], POINTER(IUnknown), 'pBuffer' )),
COMMETHOD([], HRESULT, 'IgnoreNextFileChange',
( ['in'], POINTER(IUnknown), 'pBuffer' )),
COMMETHOD([], HRESULT, 'AdjustFileChangeIgnoreCount',
( ['in'], POINTER(IUnknown), 'pBuffer' ),
( ['in'], c_int, 'fIgnore' )),
COMMETHOD([], HRESULT, 'GetBufferSccStatus2',
( ['in'], POINTER(c_ushort), 'pszFileName' ),
( ['out'], POINTER(c_int), 'pbNonEditable' ),
( ['out'], POINTER(c_int), 'piStatusFlags' )),
COMMETHOD([], HRESULT, 'AttemptToCheckOutBufferFromScc2',
( ['in'], POINTER(c_ushort), 'pszFileName' ),
( ['out'], POINTER(c_int), 'pfCheckoutSucceeded' ),
( ['out'], POINTER(c_int), 'piStatusFlags' )),
COMMETHOD([], HRESULT, 'EnumLanguageServices',
( ['out'], POINTER(POINTER(IUnknown)), 'ppEnum' )),
COMMETHOD([], HRESULT, 'EnumIndependentViews',
( ['in'], POINTER(IUnknown), 'pBuffer' ),
( ['out'], POINTER(POINTER(IUnknown)), 'ppEnum' )),
]
IVsTextView._methods_ = [
COMMETHOD([], HRESULT, 'Initialize',
( ['in'], POINTER(IUnknown), 'pBuffer' ),
( ['in'], comtypes.wireHWND, 'hwndParent' ),
( ['in'], c_ulong, 'InitFlags' ),
( ['in'], POINTER(c_int), 'pInitView' )),
COMMETHOD([], HRESULT, 'CloseView'),
COMMETHOD([], HRESULT, 'GetCaretPos',
( ['out'], POINTER(c_int), 'piLine' ),
( ['out'], POINTER(c_int), 'piColumn' )),
COMMETHOD([], HRESULT, 'SetCaretPos',
( ['in'], c_int, 'iLine' ),
( ['in'], c_int, 'iColumn' )),
COMMETHOD([], HRESULT, 'GetSelectionSpan',
( ['out'], POINTER(c_int), 'pSpan' )),
COMMETHOD([], HRESULT, 'GetSelection',
( ['out'], POINTER(c_int), 'piAnchorLine' ),
( ['out'], POINTER(c_int), 'piAnchorCol' ),
( ['out'], POINTER(c_int), 'piEndLine' ),
( ['out'], POINTER(c_int), 'piEndCol' )),
COMMETHOD([], HRESULT, 'SetSelection',
( ['in'], c_int, 'iAnchorLine' ),
( ['in'], c_int, 'iAnchorCol' ),
( ['in'], c_int, 'iEndLine' ),
( ['in'], c_int, 'iEndCol' )),
COMMETHOD([], c_int, 'GetSelectionMode'),
COMMETHOD([], HRESULT, 'SetSelectionMode',
( ['in'], c_int, 'iSelMode' )),
COMMETHOD([], HRESULT, 'ClearSelection',
( ['in'], c_int, 'fMoveToAnchor' )),
COMMETHOD([], HRESULT, 'CenterLines',
( ['in'], c_int, 'iTopLine' ),
( ['in'], c_int, 'iCount' )),
COMMETHOD([], HRESULT, 'GetSelectedText',
( ['out'], POINTER(BSTR), 'pbstrText' )),
COMMETHOD([], HRESULT, 'GetSelectionDataObject',
( ['out'], POINTER(POINTER(IUnknown)), 'ppIDataObject' )),
COMMETHOD([], HRESULT, 'GetTextStream',
( ['in'], c_int, 'iTopLine' ),
( ['in'], c_int, 'iTopCol' ),
( ['in'], c_int, 'iBottomLine' ),
( ['in'], c_int, 'iBottomCol' ),
( ['out'], POINTER(BSTR), 'pbstrText' )),
COMMETHOD([], HRESULT, 'GetBuffer',
( ['out'], POINTER(POINTER(IUnknown)), 'ppBuffer' )),
COMMETHOD([], HRESULT, 'SetBuffer',
( ['in'], POINTER(IUnknown), 'pBuffer' )),
COMMETHOD([], comtypes.wireHWND, 'GetWindowHandle'),
COMMETHOD([], HRESULT, 'GetScrollInfo',
( ['in'], c_int, 'iBar' ),
( ['out'], POINTER(c_int), 'piMinUnit' ),
( ['out'], POINTER(c_int), 'piMaxUnit' ),
( ['out'], POINTER(c_int), 'piVisibleUnits' ),
( ['out'], POINTER(c_int), 'piFirstVisibleUnit' )),
COMMETHOD([], HRESULT, 'SetScrollPosition',
( ['in'], c_int, 'iBar' ),
( ['in'], c_int, 'iFirstVisibleUnit' )),
COMMETHOD([], HRESULT, 'AddCommandFilter',
( ['in'], POINTER(IUnknown), 'pNewCmdTarg' ),
( ['out'], POINTER(POINTER(IUnknown)), 'ppNextCmdTarg' )),
COMMETHOD([], HRESULT, 'RemoveCommandFilter',
( ['in'], POINTER(IUnknown), 'pCmdTarg' )),
COMMETHOD([], HRESULT, 'UpdateCompletionStatus',
( ['in'], POINTER(IUnknown), 'pCompSet' ),
( ['in'], c_ulong, 'dwFlags' )),
COMMETHOD([], HRESULT, 'UpdateTipWindow',
( ['in'], POINTER(IUnknown), 'pTipWindow' ),
( ['in'], c_ulong, 'dwFlags' )),
COMMETHOD([], HRESULT, 'GetWordExtent',
( ['in'], c_int, 'iLine' ),
( ['in'], c_int, 'iCol' ),
( ['in'], c_ulong, 'dwFlags' ),
( ['out'], POINTER(c_int), 'pSpan' )),
COMMETHOD([], HRESULT, 'RestrictViewRange',
( ['in'], c_int, 'iMinLine' ),
( ['in'], c_int, 'iMaxLine' ),
( ['in'], POINTER(IUnknown), 'pClient' )),
COMMETHOD([], HRESULT, 'ReplaceTextOnLine',
( ['in'], c_int, 'iLine' ),
( ['in'], c_int, 'iStartCol' ),
( ['in'], c_int, 'iCharsToReplace' ),
( ['in'], POINTER(c_ushort), 'pszNewText' ),
( ['in'], c_int, 'iNewLen' )),
COMMETHOD([], HRESULT, 'GetLineAndColumn',
( ['in'], c_int, 'iPos' ),
( ['out'], POINTER(c_int), 'piLine' ),
( ['out'], POINTER(c_int), 'piIndex' )),
COMMETHOD([], HRESULT, 'GetNearestPosition',
( ['in'], c_int, 'iLine' ),
( ['in'], c_int, 'iCol' ),
( ['out'], POINTER(c_int), 'piPos' ),
( ['out'], POINTER(c_int), 'piVirtualSpaces' )),
COMMETHOD([], HRESULT, 'UpdateViewFrameCaption'),
COMMETHOD([], HRESULT, 'CenterColumns',
( ['in'], c_int, 'iLine' ),
( ['in'], c_int, 'iLeftCol' ),
( ['in'], c_int, 'iColCount' )),
COMMETHOD([], HRESULT, 'EnsureSpanVisible',
( ['in'], c_int, 'span' )),
COMMETHOD([], HRESULT, 'PositionCaretForEditing',
( ['in'], c_int, 'iLine' ),
( ['in'], c_int, 'cIndentLevels' )),
COMMETHOD([], HRESULT, 'GetPointOfLineColumn',
( ['in'], c_int, 'iLine' ),
( ['in'], c_int, 'iCol' ),
( ['retval', 'out'], POINTER(ctypes.wintypes.tagPOINT), 'ppt' )),
COMMETHOD([], HRESULT, 'GetLineHeight',
( ['retval', 'out'], POINTER(c_int), 'piLineHeight' )),
COMMETHOD([], HRESULT, 'HighlightMatchingBrace',
( ['in'], c_ulong, 'dwFlags' ),
( ['in'], c_ulong, 'cSpans' ),
( ['in'], POINTER(c_int), 'rgBaseSpans' )),
COMMETHOD([], HRESULT, 'SendExplicitFocus'),
COMMETHOD([], HRESULT, 'SetTopLine',
( ['in'], c_int, 'iBaseLine' )),
]