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lyx_mirror/development/Win32/pdfview/pdfview.nsi

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/*
Windows PDF view helper
Author: Joost Verburg
This will be installed as pdfview.exe.
The application will launch the default PDF viewer to display the PDF file,
but works around the file locking problems of Adobe Reader.
Source code of pdfopen/pdfclose is available at:
http://magic.aladdin.cs.cmu.edu/2005/07/15/pdfopen-and-pdfclose/
*/
!include LogicLib.nsh
!include FileFunc.nsh
#--------------------------------
# Settings
Caption "PDF Viewer"
OutFile pdfview.exe
Icon "..\packaging\icons\lyx.ico"
SilentInstall silent
#--------------------------------
# Windows Vista settings
RequestExecutionLevel user
#--------------------------------
# Constants
!define FALSE 0
!define TRUE 1
!define FILE_NOTIFY_CHANGE_LAST_WRITE 0x00000010
!define WAIT_TIMEOUT 0x00000102
#--------------------------------
# Variables
Var Character
Var RunAppReturn
Var OriginalFile
Var OriginalFileName
Var OriginalDir
Var PDFFile
Var ViewerFileName
Var Viewer
Var ChangeNotification
Var WaitReturn
Var LockedFile
Var OriginalTimeHigh
Var OriginalTimeLow
Var CurrentTimeHigh
Var CurrentTimeLow
#--------------------------------
# Macros
!macro SystemCall STACK
# Call a Windows API function
Push `${STACK}`
CallInstDLL "$EXEDIR\System.dll" Call
!macroend
!macro HideConsole COMMAND_LINE
# Run an application and hide console output
Push `${COMMAND_LINE}`
CallInstDLL "$EXEDIR\Console.dll" Exec
Pop $RunAppReturn
${If} $RunAppReturn == "error"
MessageBox MB_OK|MB_ICONSTOP "Error opening PDF file $PDFFile."
${EndIf}
!macroend
#--------------------------------
# PDF viewing
Section "View PDF file"
InitPluginsDir # Temporary directory for PDF file
# Command line parameters
${GetParameters} $OriginalFile
# Trim quotes
StrCpy $Character $OriginalFile 1
${If} $Character == '"'
StrCpy $OriginalFile $OriginalFile "" 1
${EndIf}
StrCpy $Character $OriginalFile 1 -1
${If} $Character == '"'
StrCpy $OriginalFile $OriginalFile -1
${EndIf}
GetFullPathName $OriginalFile $OriginalFile
${GetFileName} $OriginalFile $OriginalFileName
${GetParent} $OriginalFile $OriginalDir # tmpbuf
${GetParent} $OriginalDir $OriginalDir # tmpdir
SetOutPath $TEMP # The LyX tmpbuf should not be locked
StrCpy $PDFFile $PLUGINSDIR\$OriginalFileName
# Check whether the file will be opened with Adobe Reader or Adobe Acrobat
!insertmacro SystemCall "shell32::FindExecutable(t '$OriginalFile', t '', t .s)"
Pop $ViewerFileName
${GetFileName} $ViewerFileName $Viewer
${If} $Viewer == ""
MessageBox MB_OK|MB_ICONEXCLAMATION "No PDF viewer is installed. \
Please install a PDF viewer such as Adobe Reader."
Quit
${EndIf}
${If} $Viewer == "AcroRd32.exe"
${OrIf} $Viewer == "Acrobat.exe"
# Using Adobe viewer
# Close existing view
${If} ${FileExists} $PDFFile
!insertmacro HideConsole '"$EXEDIR\pdfclose.exe" --file "$PDFFile"'
${EndIf}
# Copy PDF to temporary file to allow LyX to overwrite the original
CopyFiles /SILENT $OriginalFile $PDFFile
# Open a new view
!insertmacro HideConsole '"$EXEDIR\pdfopen.exe" --back --file "$PDFFile"'
# Monitor for updates of the original file
GetFileTime $OriginalFile $OriginalTimeHigh $OriginalTimeLow
!insertmacro SystemCall "kernel32::FindFirstChangeNotification(t '$OriginalDir', \
i 1, i ${FILE_NOTIFY_CHANGE_LAST_WRITE}) i.s"
Pop $ChangeNotification
${Do}
!insertmacro SystemCall "kernel32::WaitForSingleObject(i $ChangeNotification, i 10000) i.s"
Pop $WaitReturn
# Check whether the lock is still active (if not, Adobe Reader is closed)
FileOpen $LockedFile $PDFFile a
${If} $LockedFile != ""
# Quit this application
FileClose $LockedFile
Delete $PDFFile
!insertmacro SystemCall "kernel32::FindCloseChangeNotification(i $ChangeNotification)"
Quit
${EndIf}
${IfNot} $WaitReturn = ${WAIT_TIMEOUT}
# The LyX temporary directory has been updated
# Check whether it's the PDF file that has been updated
GetFileTime $OriginalFile $CurrentTimeHigh $CurrentTimeLow
${If} $OriginalTimeHigh != $CurrentTimeHigh
${OrIf} $OriginalTimeLow != $CurrentTimeLow
# PDF has been modified, update view
!insertmacro HideConsole '"$EXEDIR\pdfclose.exe" --file "$PDFFile"'
CopyFiles /SILENT $OriginalFile $PDFFile
!insertmacro HideConsole '"$EXEDIR\pdfopen.exe" --back --file "$PDFFile"'
# Time of new file
StrCpy $OriginalTimeHigh $CurrentTimeHigh
StrCpy $OriginalTimeLow $CurrentTimeLow
${EndIf}
#Monitor again
!insertmacro SystemCall "kernel32::FindNextChangeNotification(i $ChangeNotification)"
${EndIf}
${Loop}
${Else}
# Another PDF viewer like GSView is used
# No need for special actions, just forward to ShellExecute
ExecShell open $OriginalFile
${EndIf}
SectionEnd