"

 COPYRIGHT (c) 1997 by eXept Software AG

              All Rights Reserved

 This software is furnished under a license and may be used

 only in accordance with the terms of that license and with the

 inclusion of the above copyright notice. This software may not

 be provided or otherwise made available to, or used by, any

 other person. No title to or ownership of the software is

 hereby transferred.

"

SelectionBrowser subclass:#FileSelectionBrowser

	instanceVariableNames:'selectedFileFilter directoryView listOfFileFilters directory'

	classVariableNames:''

	poolDictionaries:''

	category:'Interface-Dialogs'

!

!FileSelectionBrowser class methodsFor:'documentation'!

copyright

"

 COPYRIGHT (c) 1997 by eXept Software AG

              All Rights Reserved

 This software is furnished under a license and may be used

 only in accordance with the terms of that license and with the

 inclusion of the above copyright notice. This software may not

 be provided or otherwise made available to, or used by, any

 other person. No title to or ownership of the software is

 hereby transferred.

"

!

documentation

"

    The FileSelectionBrowser allows you to browse in file directories

    and to select files in order to load file contents or to save

    something to files.

    [start with:]

        FileSelectionBrowser open

    [author:]

        Thomas Zwick, eXept Software AG

"

! !

!FileSelectionBrowser class methodsFor:'instance creation'!

request: aTitle fileName: aFileName inDirectory: dir withFileFilters: fileFilters

    ^self new

        title: aTitle;

        fileName: aFileName;

        directory: dir;

        listOfFileFilters: fileFilters;

        open

    "

    self 

        request: 'Select Your Profile File' 

        fileName: '.profile' 

        inDirectory: Filename homeDirectory 

        withFileFilters: #('.*')

    "

    "Modified: / 17.8.1998 / 10:15:50 / cg"

!

request: aTitle fileName: aFileName withFileFilters: fileFilters

    ^self new

        title: aTitle;

        fileName: aFileName;

        listOfFileFilters: fileFilters;

        open

    "

    self 

        request: 'Select Your Profile File' 

        fileName: '/etc/fstab' 

        withFileFilters: #('*')  

    "

    "Modified: / 17.8.1998 / 10:15:50 / cg"

!

request: aTitle pathName: aPath withFileFilters: fileFilters

    ^self new

        title: aTitle;

        directory: aPath;

        listOfFileFilters: fileFilters;

        open

    "

    self 

        request: 'Select A File' 

        pathName: '/etc' 

        withFileFilters: #('*.conf')

    "

    "Modified: / 17.8.1998 / 10:15:50 / cg"

!

request: aTitle withFileFilters: fileFilters

    ^ self new

        title: aTitle;

        listOfFileFilters: fileFilters;

        open

    "

    self request: 'Select A File' withFileFilters: #('.*')

    "

    "Modified: / 17.8.1998 / 10:15:49 / cg"

!

requestFileName

    ^self new title: 'Select A File'; open

    "

    self requestFileName

    "

    "Modified: / 17.8.1998 / 10:15:48 / cg"

! !

!FileSelectionBrowser class methodsFor:'accessing'!

loadImageFileNameFilters

    ^ OrderedCollection 

        withAll: #(

                    '*.xpm ; *.xbm ; *.gif ; *.tif ; *.tiff ; *.bmp ; *.jpeg ; *.jpg'

                    '*'

                  )

    "Modified: / 12.9.1998 / 17:23:42 / cg"

!

projectFileNameFilters

    ^Array withAll: #(

                      '*.st ; *.*o ; *.s ; *.c ; Make* ; *.project'

                      '*'

                     )

    "Modified: / 12.9.1998 / 17:23:22 / cg"

!

saveImageFileNameFilters

    ^ OrderedCollection 

        withAll: #(

                    '*.xpm ; *.xbm ; *.gif ; *.tif ; *.tiff ; *.bmp'

                    '*'

                  )

    "Modified: / 12.9.1998 / 17:23:54 / cg"

! !

!FileSelectionBrowser class methodsFor:'interface specs'!

windowSpec

    "This resource specification was automatically generated

     by the UIPainter of ST/X."

    "Do not manually edit this!! If it is corrupted,

     the UIPainter may not be able to read the specification."

    "

     UIPainter new openOnClass:FileSelectionBrowser andSelector:#windowSpec

     FileSelectionBrowser new openInterface:#windowSpec

     FileSelectionBrowser open

    "

    <resource: #canvas>

    ^ 

     #(#FullSpec

        #name: #windowSpec

        #window: 

       #(#WindowSpec

          #label: 'File Selection Browser'

          #name: 'File Selection Browser'

          #min: #(#Point 10 10)

          #max: #(#Point 1152 900)

          #bounds: #(#Rectangle 18 51 618 401)

        )

        #component: 

       #(#SpecCollection

          #collection: #(

           #(#VariableHorizontalPanelSpec

              #name: 'panel'

              #layout: #(#LayoutFrame 0 0.0 0 0.0 0 1.0 -40 1.0)

              #component: 

             #(#SpecCollection

                #collection: #(

                 #(#ViewSpec

                    #name: 'view1'

                    #component: 

                   #(#SpecCollection

                      #collection: #(

                       #(#FileSelectionTreeSpec

                          #name: 'directoryTreeView'

                          #layout: #(#LayoutFrame 0 0.0 0 0.0 0 1.0 -25 1.0)

                          #model: #selectionOfDirectory

                          #hasHorizontalScrollBar: true

                          #hasVerticalScrollBar: true

                          #miniScrollerHorizontal: true

                          #showDirectoryIndicatorForRoot: false

                          #showDirectoryIndicator: true

                          #valueChangeSelector: #readDirectory

                          #hierarchicalList: #rootOfDirectory

                          #highlightMode: #line

                          #itemClass: 'Directory'

                        )

                       #(#InputFieldSpec

                          #name: 'directoryInputField'

                          #layout: #(#LayoutFrame 2 0.0 -22 1 0 1.0 0 1)

                          #model: #selectionOfDirectory

                          #immediateAccept: false

                          #acceptOnPointerLeave: false

                        )

                       )

                    )

                  )

                 #(#ViewSpec

                    #name: 'view2'

                    #component: 

                   #(#SpecCollection

                      #collection: #(

                       #(#InputFieldSpec

                          #name: 'EditField'

                          #layout: #(#LayoutFrame 1 0.0 -22 1 -2 1.0 0 1)

                          #model: #valueOfFileName

                          #acceptOnReturn: false

                          #acceptOnTab: false

                          #acceptOnPointerLeave: false

                        )

                       #(#SubCanvasSpec

                          #name: 'subCanvas1'

                          #layout: #(#LayoutFrame 1 0.0 0 0.0 0 1.0 -25 1.0)

                          #clientHolder: #directoryView

                        )

                       )

                    )

                  )

                 )

              )

              #handles: #(#Any 0.5 1.0)

            )

           #(#UISubSpecification

              #name: 'SubSpecification'

              #layout: #(#LayoutFrame 2 0.0 -32 1 0 1.0 0 1.0)

              #majorKey: #ToolApplicationModel

              #minorKey: #windowSpecForCommitWithoutChannels

            )

           )

        )

      )

! !

!FileSelectionBrowser methodsFor:'accessing'!

directory: aDirectory

    directory := (aDirectory ? Filename currentDirectory) asFilename asAbsoluteFilename pathName

    "Modified: / 17.8.1998 / 10:15:53 / cg"

!

directoryView

    "return the directory view on the right side (a subcanvas)"

    ^directoryView ? (directoryView := DirectoryView new)

    "Modified: / 23.9.1998 / 16:46:50 / cg"

!

fileName: aFileName

    |prevDir|

    self valueOfFileName value: (aFileName ? '') asFilename baseName.

    prevDir := directory.

    directory := directory ? ((aFileName ? '') asFilename asAbsoluteFilename directoryName).

    "/ on systems with volumes, we might have to update

    "/ the root here.

    (prevDir isNil

    or:[directory asFilename volume ~= prevDir asFilename volume]) ifTrue:[

        self setRootForFile:directory asFilename.

    ].

    "Modified: / 24.9.1998 / 23:41:08 / cg"

!

listOfFileFilters: anArray

    listOfFileFilters := anArray

! !

!FileSelectionBrowser methodsFor:'accessing - views'!

directoryInputField

    ^builder componentAt: #directoryInputField

!

directoryTreeView

    ^builder componentAt: #directoryTreeView

! !

!FileSelectionBrowser methodsFor:'aspects'!

rootOfDirectory

    |holder|

    (holder := builder bindingAt:#rootOfDirectory) isNil ifTrue:[

        builder 

            aspectAt:#rootOfDirectory 

            put: (holder :=  Filename rootDirectory name asValue).

    ].

    ^ holder

    "Modified: / 5.10.1998 / 12:46:10 / cg"

!

selectionOfDirectory

    |holder|

    (holder := builder bindingAt:#selectionOfDirectory) isNil ifTrue:[

        builder aspectAt:#selectionOfDirectory put: (holder := ValueHolder new)

    ].

    ^ holder

!

setRootForFile:aFilename

    |f root parent|

    f := aFilename asFilename.

    root := Filename rootDirectoryOnVolume:f volume.

    self directory:aFilename.

    "/ on some systems, the root itself is not readable,

    "/ but subdirs are (WIN32-network drives and VMS)

    "/ to avoid trouble in the treeView, search for the

    "/ last readable directory and fake that as the trees root.

    (root exists and:[root isDirectory and:[root isReadable]])

    ifFalse:[

        "/ search backward from aFilename for the last readable dir.

        root := f.

        parent := root directory.

        [parent ~= root

         and:[parent exists 

         and:[parent isDirectory 

         and:[parent isReadable]]]]

        whileTrue:[

            root := parent.

            parent := root directory.

        ].

    ].

    self rootOfDirectory value:root pathName

    "Created: / 23.9.1998 / 16:36:28 / cg"

    "Modified: / 5.10.1998 / 12:46:06 / cg"

!

valueOfFileName

    |holder|

    (holder := builder bindingAt:#valueOfFileName) isNil ifTrue:[

        builder aspectAt:#valueOfFileName put:(holder :=  ValueHolder new).

    ].

    ^ holder

! !

!FileSelectionBrowser methodsFor:'callbacks'!

fileDoubleClicked: aFileName

    self valueOfFileName value: aFileName.

    accept value: true.

    self closeRequest

!

readDirectory

    self directoryTreeView selection notNil 

    ifTrue: 

    [

        directoryView directory: self selectionOfDirectory value.

        directoryView readDirectory.  

        self class lastSelection notNil ifTrue: [self class lastSelection: self selectionOfDirectory value]

    ]

    "Modified: / 24.9.1998 / 21:58:50 / cg"

! !

!FileSelectionBrowser methodsFor:'misc'!

entryCompletion

    |completedDirectory f dir treeView inputField|

    treeView := self directoryTreeView.

    inputField := self directoryInputField.

    f := inputField contents.

    dir := f asFilename directoryName.

    (completedDirectory := Filename 

        filenameCompletionFor:f

        directory:dir

        directoriesOnly:true 

        filesOnly:false 

        ifMultiple:

        [:dir | 

            treeView selection notNil ifTrue:[

                treeView selectedNodeExpand: true

            ]

        ]) asFilename exists

    ifTrue:

    [

        "/ volume changed ... (win32 or VMS)

        completedDirectory asFilename volume ~= directory asFilename volume ifTrue:[

            self setRootForFile:completedDirectory asFilename.

        ].

        treeView selectPathname: completedDirectory.

        inputField contents: completedDirectory.

"/            self directoryTreeView selectPathname: completedDirectory.

        self readDirectory

    ] ifFalse: [

        inputField flash

    ]

    "Created: / 24.9.1998 / 21:33:37 / cg"

    "Modified: / 24.9.1998 / 22:20:23 / cg"

! !

!FileSelectionBrowser methodsFor:'startup / release'!

closeCancel

    directoryView release.

    super closeCancel

!

closeRequest

    directoryView release.

    super closeRequest

!

open

    super open.

    accept value ifTrue:[

        ^ (self selectionOfDirectory value ? '') asFilename 

                constructString:(self valueOfFileName value ? '')

    ].

    ^ nil

    "Modified: / 17.8.1998 / 10:15:55 / cg"

!

postBuildWith:aBuilder

    |nm file|

    directoryView listOfFileFilters: listOfFileFilters ? #('*').

    directoryView fileSelectAction: [:aFileName |self valueOfFileName value: aFileName asFilename baseName].

    directoryView fileDoubleClickAction: [:aFileName |self fileDoubleClicked: aFileName asFilename baseName].

    directoryView fileFilterSelectAction: [:fileFilter|

"/        CG: obscure code - isn't the code below the same as ?

"/        self valueOfFileName value:((self valueOfFileName value ? 'unknown') 

"/                                    asFilename

"/                                        withSuffix:(fileFilter asFilename suffix))

        self valueOfFileName value: (

            ((self valueOfFileName value ? 'unknown') readStream upTo: $.), '.',

            (fileFilter copy reverse readStream upTo: $.) reverse)

    ]. 

    nm := directory.

    nm isNil ifTrue:[

        nm := self class lastSelection.

        nm isNil ifTrue:[

            nm := Filename currentDirectory asAbsoluteFilename name.

        ].

    ].

    self directoryTreeView selectPathname:nm.