[37] | 1 | # choosedir.tcl -- |
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| 2 | # |
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| 3 | # Choose directory dialog implementation for Unix/Mac. |
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| 4 | # |
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| 5 | # Copyright (c) 1998-2000 by Scriptics Corporation. |
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| 6 | # All rights reserved. |
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| 7 | # |
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| 8 | # RCS: @(#) $Id: choosedir.tcl,v 1.15 2002/07/22 21:25:39 mdejong Exp $ |
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| 9 | |
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| 10 | # Make sure the tk::dialog namespace, in which all dialogs should live, exists |
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| 11 | namespace eval ::tk::dialog {} |
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| 12 | namespace eval ::tk::dialog::file {} |
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| 13 | |
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| 14 | # Make the chooseDir namespace inside the dialog namespace |
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| 15 | namespace eval ::tk::dialog::file::chooseDir { |
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| 16 | namespace import ::tk::msgcat::* |
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| 17 | } |
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| 18 | |
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| 19 | # ::tk::dialog::file::chooseDir:: -- |
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| 20 | # |
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| 21 | # Implements the TK directory selection dialog. |
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| 22 | # |
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| 23 | # Arguments: |
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| 24 | # args Options parsed by the procedure. |
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| 25 | # |
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| 26 | proc ::tk::dialog::file::chooseDir:: {args} { |
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| 27 | variable ::tk::Priv |
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| 28 | set dataName __tk_choosedir |
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| 29 | upvar ::tk::dialog::file::$dataName data |
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| 30 | ::tk::dialog::file::chooseDir::Config $dataName $args |
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| 31 | |
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| 32 | if {[string equal $data(-parent) .]} { |
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| 33 | set w .$dataName |
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| 34 | } else { |
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| 35 | set w $data(-parent).$dataName |
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| 36 | } |
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| 37 | |
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| 38 | # (re)create the dialog box if necessary |
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| 39 | # |
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| 40 | if {![winfo exists $w]} { |
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| 41 | ::tk::dialog::file::Create $w TkChooseDir |
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| 42 | } elseif {[string compare [winfo class $w] TkChooseDir]} { |
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| 43 | destroy $w |
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| 44 | ::tk::dialog::file::Create $w TkChooseDir |
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| 45 | } else { |
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| 46 | set data(dirMenuBtn) $w.f1.menu |
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| 47 | set data(dirMenu) $w.f1.menu.menu |
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| 48 | set data(upBtn) $w.f1.up |
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| 49 | set data(icons) $w.icons |
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| 50 | set data(ent) $w.f2.ent |
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| 51 | set data(okBtn) $w.f2.ok |
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| 52 | set data(cancelBtn) $w.f3.cancel |
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| 53 | } |
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| 54 | |
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| 55 | # Dialog boxes should be transient with respect to their parent, |
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| 56 | # so that they will always stay on top of their parent window. However, |
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| 57 | # some window managers will create the window as withdrawn if the parent |
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| 58 | # window is withdrawn or iconified. Combined with the grab we put on the |
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| 59 | # window, this can hang the entire application. Therefore we only make |
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| 60 | # the dialog transient if the parent is viewable. |
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| 61 | |
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| 62 | if {[winfo viewable [winfo toplevel $data(-parent)]] } { |
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| 63 | wm transient $w $data(-parent) |
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| 64 | } |
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| 65 | |
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| 66 | trace variable data(selectPath) w [list ::tk::dialog::file::SetPath $w] |
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| 67 | $data(dirMenuBtn) configure \ |
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| 68 | -textvariable ::tk::dialog::file::${dataName}(selectPath) |
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| 69 | |
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| 70 | set data(filter) "*" |
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| 71 | set data(previousEntryText) "" |
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| 72 | ::tk::dialog::file::UpdateWhenIdle $w |
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| 73 | |
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| 74 | # Withdraw the window, then update all the geometry information |
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| 75 | # so we know how big it wants to be, then center the window in the |
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| 76 | # display and de-iconify it. |
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| 77 | |
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| 78 | ::tk::PlaceWindow $w widget $data(-parent) |
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| 79 | wm title $w $data(-title) |
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| 80 | |
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| 81 | # Set a grab and claim the focus too. |
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| 82 | |
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| 83 | ::tk::SetFocusGrab $w $data(ent) |
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| 84 | $data(ent) delete 0 end |
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| 85 | $data(ent) insert 0 $data(selectPath) |
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| 86 | $data(ent) selection range 0 end |
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| 87 | $data(ent) icursor end |
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| 88 | |
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| 89 | # Wait for the user to respond, then restore the focus and |
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| 90 | # return the index of the selected button. Restore the focus |
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| 91 | # before deleting the window, since otherwise the window manager |
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| 92 | # may take the focus away so we can't redirect it. Finally, |
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| 93 | # restore any grab that was in effect. |
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| 94 | |
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| 95 | vwait ::tk::Priv(selectFilePath) |
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| 96 | |
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| 97 | ::tk::RestoreFocusGrab $w $data(ent) withdraw |
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| 98 | |
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| 99 | # Cleanup traces on selectPath variable |
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| 100 | # |
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| 101 | |
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| 102 | foreach trace [trace vinfo data(selectPath)] { |
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| 103 | trace vdelete data(selectPath) [lindex $trace 0] [lindex $trace 1] |
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| 104 | } |
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| 105 | $data(dirMenuBtn) configure -textvariable {} |
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| 106 | |
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| 107 | # Return value to user |
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| 108 | # |
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| 109 | |
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| 110 | return $Priv(selectFilePath) |
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| 111 | } |
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| 112 | |
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| 113 | # ::tk::dialog::file::chooseDir::Config -- |
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| 114 | # |
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| 115 | # Configures the Tk choosedir dialog according to the argument list |
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| 116 | # |
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| 117 | proc ::tk::dialog::file::chooseDir::Config {dataName argList} { |
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| 118 | upvar ::tk::dialog::file::$dataName data |
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| 119 | |
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| 120 | # 0: Delete all variable that were set on data(selectPath) the |
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| 121 | # last time the file dialog is used. The traces may cause troubles |
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| 122 | # if the dialog is now used with a different -parent option. |
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| 123 | # |
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| 124 | foreach trace [trace vinfo data(selectPath)] { |
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| 125 | trace vdelete data(selectPath) [lindex $trace 0] [lindex $trace 1] |
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| 126 | } |
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| 127 | |
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| 128 | # 1: the configuration specs |
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| 129 | # |
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| 130 | set specs { |
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| 131 | {-mustexist "" "" 0} |
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| 132 | {-initialdir "" "" ""} |
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| 133 | {-parent "" "" "."} |
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| 134 | {-title "" "" ""} |
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| 135 | } |
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| 136 | |
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| 137 | # 2: default values depending on the type of the dialog |
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| 138 | # |
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| 139 | if {![info exists data(selectPath)]} { |
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| 140 | # first time the dialog has been popped up |
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| 141 | set data(selectPath) [pwd] |
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| 142 | } |
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| 143 | |
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| 144 | # 3: parse the arguments |
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| 145 | # |
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| 146 | tclParseConfigSpec ::tk::dialog::file::$dataName $specs "" $argList |
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| 147 | |
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| 148 | if {$data(-title) == ""} { |
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| 149 | set data(-title) "[mc "Choose Directory"]" |
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| 150 | } |
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| 151 | |
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| 152 | # Stub out the -multiple value for the dialog; it doesn't make sense for |
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| 153 | # choose directory dialogs, but we have to have something there because we |
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| 154 | # share so much code with the file dialogs. |
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| 155 | set data(-multiple) 0 |
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| 156 | |
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| 157 | # 4: set the default directory and selection according to the -initial |
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| 158 | # settings |
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| 159 | # |
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| 160 | if {$data(-initialdir) != ""} { |
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| 161 | # Ensure that initialdir is an absolute path name. |
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| 162 | if {[file isdirectory $data(-initialdir)]} { |
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| 163 | set old [pwd] |
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| 164 | cd $data(-initialdir) |
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| 165 | set data(selectPath) [pwd] |
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| 166 | cd $old |
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| 167 | } else { |
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| 168 | set data(selectPath) [pwd] |
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| 169 | } |
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| 170 | } |
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| 171 | |
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| 172 | if {![winfo exists $data(-parent)]} { |
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| 173 | error "bad window path name \"$data(-parent)\"" |
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| 174 | } |
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| 175 | } |
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| 176 | |
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| 177 | # Gets called when user presses Return in the "Selection" entry or presses OK. |
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| 178 | # |
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| 179 | proc ::tk::dialog::file::chooseDir::OkCmd {w} { |
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| 180 | upvar ::tk::dialog::file::[winfo name $w] data |
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| 181 | |
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| 182 | # This is the brains behind selecting non-existant directories. Here's |
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| 183 | # the flowchart: |
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| 184 | # 1. If the icon list has a selection, join it with the current dir, |
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| 185 | # and return that value. |
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| 186 | # 1a. If the icon list does not have a selection ... |
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| 187 | # 2. If the entry is empty, do nothing. |
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| 188 | # 3. If the entry contains an invalid directory, then... |
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| 189 | # 3a. If the value is the same as last time through here, end dialog. |
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| 190 | # 3b. If the value is different than last time, save it and return. |
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| 191 | # 4. If entry contains a valid directory, then... |
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| 192 | # 4a. If the value is the same as the current directory, end dialog. |
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| 193 | # 4b. If the value is different from the current directory, change to |
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| 194 | # that directory. |
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| 195 | |
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| 196 | set selection [tk::IconList_Curselection $data(icons)] |
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| 197 | if { [llength $selection] != 0 } { |
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| 198 | set iconText [tk::IconList_Get $data(icons) [lindex $selection 0]] |
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| 199 | set iconText [file join $data(selectPath) $iconText] |
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| 200 | ::tk::dialog::file::chooseDir::Done $w $iconText |
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| 201 | } else { |
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| 202 | set text [$data(ent) get] |
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| 203 | if { [string equal $text ""] } { |
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| 204 | return |
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| 205 | } |
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| 206 | set text [eval file join [file split [string trim $text]]] |
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| 207 | if { ![file exists $text] || ![file isdirectory $text] } { |
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| 208 | # Entry contains an invalid directory. If it's the same as the |
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| 209 | # last time they came through here, reset the saved value and end |
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| 210 | # the dialog. Otherwise, save the value (so we can do this test |
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| 211 | # next time). |
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| 212 | if { [string equal $text $data(previousEntryText)] } { |
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| 213 | set data(previousEntryText) "" |
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| 214 | ::tk::dialog::file::chooseDir::Done $w $text |
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| 215 | } else { |
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| 216 | set data(previousEntryText) $text |
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| 217 | } |
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| 218 | } else { |
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| 219 | # Entry contains a valid directory. If it is the same as the |
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| 220 | # current directory, end the dialog. Otherwise, change to that |
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| 221 | # directory. |
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| 222 | if { [string equal $text $data(selectPath)] } { |
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| 223 | ::tk::dialog::file::chooseDir::Done $w $text |
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| 224 | } else { |
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| 225 | set data(selectPath) $text |
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| 226 | } |
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| 227 | } |
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| 228 | } |
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| 229 | return |
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| 230 | } |
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| 231 | |
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| 232 | proc ::tk::dialog::file::chooseDir::DblClick {w} { |
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| 233 | upvar ::tk::dialog::file::[winfo name $w] data |
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| 234 | set selection [tk::IconList_Curselection $data(icons)] |
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| 235 | if { [llength $selection] != 0 } { |
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| 236 | set filenameFragment \ |
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| 237 | [tk::IconList_Get $data(icons) [lindex $selection 0]] |
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| 238 | set file $data(selectPath) |
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| 239 | if {[file isdirectory $file]} { |
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| 240 | ::tk::dialog::file::ListInvoke $w [list $filenameFragment] |
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| 241 | return |
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| 242 | } |
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| 243 | } |
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| 244 | } |
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| 245 | |
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| 246 | # Gets called when user browses the IconList widget (dragging mouse, arrow |
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| 247 | # keys, etc) |
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| 248 | # |
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| 249 | proc ::tk::dialog::file::chooseDir::ListBrowse {w text} { |
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| 250 | upvar ::tk::dialog::file::[winfo name $w] data |
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| 251 | |
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| 252 | if {[string equal $text ""]} { |
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| 253 | return |
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| 254 | } |
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| 255 | |
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| 256 | set file [::tk::dialog::file::JoinFile $data(selectPath) $text] |
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| 257 | $data(ent) delete 0 end |
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| 258 | $data(ent) insert 0 $file |
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| 259 | } |
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| 260 | |
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| 261 | # ::tk::dialog::file::chooseDir::Done -- |
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| 262 | # |
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| 263 | # Gets called when user has input a valid filename. Pops up a |
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| 264 | # dialog box to confirm selection when necessary. Sets the |
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| 265 | # Priv(selectFilePath) variable, which will break the "vwait" |
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| 266 | # loop in tk_chooseDirectory and return the selected filename to the |
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| 267 | # script that calls tk_getOpenFile or tk_getSaveFile |
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| 268 | # |
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| 269 | proc ::tk::dialog::file::chooseDir::Done {w {selectFilePath ""}} { |
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| 270 | upvar ::tk::dialog::file::[winfo name $w] data |
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| 271 | variable ::tk::Priv |
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| 272 | |
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| 273 | if {[string equal $selectFilePath ""]} { |
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| 274 | set selectFilePath $data(selectPath) |
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| 275 | } |
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| 276 | if { $data(-mustexist) } { |
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| 277 | if { ![file exists $selectFilePath] || \ |
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| 278 | ![file isdir $selectFilePath] } { |
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| 279 | return |
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| 280 | } |
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| 281 | } |
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| 282 | set Priv(selectFilePath) $selectFilePath |
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| 283 | } |
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