"

 COPYRIGHT (c) 1994 by Claus Gittinger

	      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.

"

"{ Package: 'stx:libtool' }"

ComboBoxView subclass:#FilenameEditFieldV2

	instanceVariableNames:'directoriesOnly filesOnly directory acceptOnExpand activeMenu

		completitionList'

	classVariableNames:''

	poolDictionaries:''

	category:'Interface-Tools-File'

!

!FilenameEditFieldV2 class methodsFor:'documentation'!

copyright

"

 COPYRIGHT (c) 1994 by Claus Gittinger

	      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

"

    like a normal editField, but does filename-completion on the last word of

    the contents, when TAB is pressed.

    Filename completion ignores regular files if directoriesOnly is true,

    and ignores directories, if filesOnly is true. Both default to false.

    [author:]

        Claus Gittinger

"

! !

!FilenameEditFieldV2 methodsFor:'accessing'!

acceptOnExpand

    "return the autoAccept on filename expansion flag.

     The default is true, which means that an expand accepts"

    ^ acceptOnExpand

!

acceptOnExpand:aBoolean

    "set/clear autoAccept on filename expansion.

     The default is true, which means that an expand accepts"

    acceptOnExpand := aBoolean

!

contents:someText

    "redefined to add a trailing file-separator if the displayed

     filename is a directory"

    ^ self

        contents:someText 

        addSeparatorToDirectories:true

!

contents:someText addSeparatorToDirectories:doAddSeparator

    "optionally add a trailing file-separator if the displayed

     filename is a directory."

    |f n|

    n := someText.

    doAddSeparator ifTrue:[

        directoriesOnly ifFalse:[

            someText notNil ifTrue:[

                f := someText asFilename.

                (f exists and:[f isDirectory]) ifTrue:[

                    (f name endsWith:f separator) ifFalse:[

                        n := f name copyWith:f separator

                    ]

                ]

            ].

        ].

    ].

    super contents:n

!

directoriesOnly

    "set to expand names for directories only"

    directoriesOnly := true.

!

directory

    ^ directory

    "Modified: 7.9.1995 / 10:12:40 / claus"

!

directory:aFilename

    aFilename isNil ifTrue:[

        directory := Filename currentDirectory

    ] ifFalse:[

        directory := aFilename asFilename

    ]

    "Modified: 7.9.1995 / 10:12:55 / claus"

!

filesOnly

    "set to expand names for files only"

    filesOnly := true.

!

initialText:aString selected:aBoolean

    "move the cursor to the end - thats the most interesting part of

     a filename

    "

    super initialText:aString selected:aBoolean.

    self cursorToEndOfLine.

!

showsDirectoriesOnly

    "return if expanding names for directories only"

    ^ directoriesOnly

    "Modified: 6.9.1995 / 20:35:30 / claus"

!

showsFilesOnly

    "return if expanding names for files only"

    ^ filesOnly

    "Modified: 6.9.1995 / 20:34:57 / claus"

! !

!FilenameEditFieldV2 methodsFor:'event handling'!

keyPress:key x:x y:y

    "handle tab for filename completion.

     Bug: it completes the last word; it should complete the

          word before the cursor."

    <resource: #keyboard ( #Tab #FilenameCompletion ) >

    |oldContents newContents|

    self editor enabled ifTrue:[

        ((key == self editor entryCompletionCharacter)

        or:[key == #FilenameCompletion]) ifTrue:[

            oldContents := self contents.

            oldContents isNil ifTrue:[

                oldContents := ''

            ] ifFalse:[

                oldContents := oldContents asString

            ].

            self editor entryCompletionBlock value:oldContents.

            newContents := self contents.

            newContents isNil ifTrue:[

                newContents := ''

            ] ifFalse:[

                newContents := newContents asString

            ].

            newContents ~= oldContents ifTrue:[

                self textChanged.

                acceptOnExpand ifTrue:[

                    self accept 

                ]

            ].

            ^ self

        ] ifFalse:[

            self list:nil.

            pullDownButton turnOff.

        ]

    ].

    ^ super keyPress:key x:x y:y.

    "Modified: 7.3.1996 / 13:16:49 / cg"

! !

!FilenameEditFieldV2 methodsFor:'initialization'!

initialize

    super initialize.

    acceptOnExpand := true.

    directoriesOnly := filesOnly := false.

    directory := Filename currentDirectory.

"/    self menuButton visibilityChannel:(false asValue).

    self editor entryCompletionBlock: [:contents |

        |newString isMultiMatch canonContents|

        isMultiMatch := false.

        canonContents := Filename canonicalize:contents.

        newString := Filename 

                        filenameCompletionFor:canonContents 

                        directory:directory 

                        directoriesOnly:directoriesOnly 

                        filesOnly:filesOnly 

                        ifMultiple:[:dir | ]

                        forMultipleDo:[:dir :matchSet |

                            matchSet notEmpty ifTrue:[

                                self editor contents:dir name.

                                completitionList := matchSet asList.

                                self action:[: string |  | newFile |

                                ].

                                self pullMenu.

                                completitionList := nil.

                                isMultiMatch := true.

                            ].

                        ].

        isMultiMatch not ifTrue:[

            newString asFilename pathName = canonContents ifTrue:[

                [self flash] fork.

            ].

            self contents:newString addSeparatorToDirectories:isMultiMatch not.

            self cursorToEndOfLine.

        ]

    ].

    "Modified: 7.9.1995 / 10:20:46 / claus"

    "Modified: 7.9.1997 / 23:51:47 / cg"

!

realize

    "move the cursor to the end - thats the most interesting part of

     a filename

    "

    super realize.

    self cursorToEndOfLine.

    "Created: 24.7.1997 / 18:21:51 / cg"

! !

!FilenameEditFieldV2 methodsFor:'menu'!

processEvent:anEvent

    "catch keyEvents in pulled menu (see redefined pullMenu-method)"

    activeMenu notNil ifTrue:[

        anEvent isKeyPressEvent ifTrue:[

            anEvent key isCharacter ifTrue:[

                "/ activeMenu windowGroup removePreEventHook:self.

                self windowGroup focusView:field.

                self windowGroup sensor pushEvent:anEvent.

                WindowGroup leaveSignal raiseRequest.

                self error:'should not be reached'.

            ]

        ].

    ].

    ^ false.

!

pullMenu

    "pull the menu - triggered from the button"

    |menu origin plug|

    completitionList notNil ifTrue:[

        self list:completitionList

    ] ifFalse:[

        self list:(listHolder value collect:[:el| el path]).

    ].

    menu := self createPullDownMenuForList:list.

    menu backgroundColor:self editor backgroundColor.

    origin := device translatePoint:(0 @ self height) fromView:self toView:nil.

    "/ need a callBack when the menu becomes visible, to add an eventHook to

    "/ its windowGroup.

    "/ cannot do this here, since the windowgroup is created later and there is no other

    "/ callback or hook from modal views.

    menu addDependent:(plug := Plug new 

                        respondTo:#'update:with:from:' 

                        with:[:a :b :c | menu windowGroup notNil 

                                                ifTrue:[menu windowGroup addPreEventHook:self].

                                         menu removeDependent:plug]).

    activeMenu := menu.

    menu showAt:origin.

    activeMenu := nil.

    pullDownButton turnOff.

! !

!FilenameEditFieldV2 class methodsFor:'documentation'!

version

! !