Files
readest/apps/readest-app/src-tauri/nsis/installer-hooks.nsh
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NSIS

; Readest NSIS Installer Hooks
; Registers/unregisters the thumbnail provider DLL for Windows Explorer thumbnails
!include "LogicLib.nsh"
; CLSID for Readest Thumbnail Provider
!define CLSID_READEST_THUMBNAIL "{A1B2C3D4-E5F6-7890-ABCD-EF1234567890}"
; IThumbnailProvider Shell Extension Handler GUID
!define SHELL_THUMBNAIL_HANDLER "{e357fccd-a995-4576-b01f-234630154e96}"
;------------------------------------------------------------------------------
; NSIS_HOOK_POSTINSTALL - Called after files are installed
;------------------------------------------------------------------------------
!macro NSIS_HOOK_POSTINSTALL
DetailPrint "Registering Readest Thumbnail Provider..."
; Always do manual registration for reliability
; regsvr32 may fail silently if DLL can't find dependencies
; Register CLSID with full DLL path
WriteRegStr HKCR "CLSID\${CLSID_READEST_THUMBNAIL}" "" "Readest Thumbnail Provider"
WriteRegStr HKCR "CLSID\${CLSID_READEST_THUMBNAIL}\InprocServer32" "" "$INSTDIR\readest_thumbnail.dll"
WriteRegStr HKCR "CLSID\${CLSID_READEST_THUMBNAIL}\InprocServer32" "ThreadingModel" "Apartment"
; CRITICAL: Disable process isolation - required because we use IInitializeWithItem, not IInitializeWithStream
; Without this, Windows runs the handler in an isolated process that can't load the DLL properly
WriteRegDWORD HKCR "CLSID\${CLSID_READEST_THUMBNAIL}" "DisableProcessIsolation" 1
; ========== EPUB ==========
; Register thumbnail handler directly on extension (this is what Windows Shell uses)
WriteRegStr HKCR ".epub\ShellEx\${SHELL_THUMBNAIL_HANDLER}" "" "${CLSID_READEST_THUMBNAIL}"
; ========== MOBI ==========
WriteRegStr HKCR ".mobi\ShellEx\${SHELL_THUMBNAIL_HANDLER}" "" "${CLSID_READEST_THUMBNAIL}"
; ========== AZW ==========
WriteRegStr HKCR ".azw\ShellEx\${SHELL_THUMBNAIL_HANDLER}" "" "${CLSID_READEST_THUMBNAIL}"
; ========== AZW3 ==========
WriteRegStr HKCR ".azw3\ShellEx\${SHELL_THUMBNAIL_HANDLER}" "" "${CLSID_READEST_THUMBNAIL}"
; ========== KF8 ==========
WriteRegStr HKCR ".kf8\ShellEx\${SHELL_THUMBNAIL_HANDLER}" "" "${CLSID_READEST_THUMBNAIL}"
; ========== FB2 ==========
WriteRegStr HKCR ".fb2\ShellEx\${SHELL_THUMBNAIL_HANDLER}" "" "${CLSID_READEST_THUMBNAIL}"
; ========== CBZ ==========
WriteRegStr HKCR ".cbz\ShellEx\${SHELL_THUMBNAIL_HANDLER}" "" "${CLSID_READEST_THUMBNAIL}"
; ========== CBR ==========
WriteRegStr HKCR ".cbr\ShellEx\${SHELL_THUMBNAIL_HANDLER}" "" "${CLSID_READEST_THUMBNAIL}"
DetailPrint "Thumbnail provider registered successfully."
Delete "$DESKTOP\Readest.lnk"
Delete "$SMPROGRAMS\Readest\Readest.lnk"
RMDir "$SMPROGRAMS\Readest"
; Create new shortcuts pointing to current installation
CreateShortcut "$DESKTOP\Readest.lnk" "$INSTDIR\Readest.exe"
CreateDirectory "$SMPROGRAMS\Readest"
CreateShortcut "$SMPROGRAMS\Readest\Readest.lnk" "$INSTDIR\Readest.exe"
DetailPrint "Shortcuts updated."
; Refresh shell to apply changes - SHCNE_ASSOCCHANGED
System::Call 'shell32::SHChangeNotify(i 0x08000000, i 0, p 0, p 0)'
!macroend
;------------------------------------------------------------------------------
; NSIS_HOOK_PREUNINSTALL - Called before files are removed
;------------------------------------------------------------------------------
!macro NSIS_HOOK_PREUNINSTALL
DetailPrint "Unregistering Readest Thumbnail Provider..."
; Remove CLSID
DeleteRegKey HKCR "CLSID\${CLSID_READEST_THUMBNAIL}"
; Remove ShellEx from extensions
DeleteRegKey HKCR ".epub\ShellEx\${SHELL_THUMBNAIL_HANDLER}"
DeleteRegKey HKCR ".mobi\ShellEx\${SHELL_THUMBNAIL_HANDLER}"
DeleteRegKey HKCR ".azw\ShellEx\${SHELL_THUMBNAIL_HANDLER}"
DeleteRegKey HKCR ".azw3\ShellEx\${SHELL_THUMBNAIL_HANDLER}"
DeleteRegKey HKCR ".kf8\ShellEx\${SHELL_THUMBNAIL_HANDLER}"
DeleteRegKey HKCR ".fb2\ShellEx\${SHELL_THUMBNAIL_HANDLER}"
DeleteRegKey HKCR ".cbz\ShellEx\${SHELL_THUMBNAIL_HANDLER}"
DeleteRegKey HKCR ".cbr\ShellEx\${SHELL_THUMBNAIL_HANDLER}"
; Delete the DLL file
Delete "$INSTDIR\readest_thumbnail.dll"
; Refresh shell
System::Call 'shell32::SHChangeNotify(i 0x08000000, i 0, p 0, p 0)'
!macroend