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-rw-r--r--git-gui/lib/branch_checkout.tcl93
1 files changed, 93 insertions, 0 deletions
diff --git a/git-gui/lib/branch_checkout.tcl b/git-gui/lib/branch_checkout.tcl
new file mode 100644
index 000000000000..d06037decc1a
--- /dev/null
+++ b/git-gui/lib/branch_checkout.tcl
@@ -0,0 +1,93 @@
+# git-gui branch checkout support
+# Copyright (C) 2007 Shawn Pearce
+
+class branch_checkout {
+
+field w              ; # widget path
+field w_rev          ; # mega-widget to pick the initial revision
+
+field opt_fetch     1; # refetch tracking branch if used?
+field opt_detach    0; # force a detached head case?
+
+constructor dialog {} {
+	global use_ttk NS
+	make_dialog top w
+	wm withdraw $w
+	wm title $top [mc "%s (%s): Checkout Branch" [appname] [reponame]]
+	if {$top ne {.}} {
+		wm geometry $top "+[winfo rootx .]+[winfo rooty .]"
+	}
+
+	${NS}::label $w.header -text [mc "Checkout Branch"] \
+		-font font_uibold -anchor center
+	pack $w.header -side top -fill x
+
+	${NS}::frame $w.buttons
+	${NS}::button $w.buttons.create -text [mc Checkout] \
+		-default active \
+		-command [cb _checkout]
+	pack $w.buttons.create -side right
+	${NS}::button $w.buttons.cancel -text [mc Cancel] \
+		-command [list destroy $w]
+	pack $w.buttons.cancel -side right -padx 5
+	pack $w.buttons -side bottom -fill x -pady 10 -padx 10
+
+	set w_rev [::choose_rev::new $w.rev [mc Revision]]
+	$w_rev bind_listbox <Double-Button-1> [cb _checkout]
+	pack $w.rev -anchor nw -fill both -expand 1 -pady 5 -padx 5
+
+	${NS}::labelframe $w.options -text [mc Options]
+
+	${NS}::checkbutton $w.options.fetch \
+		-text [mc "Fetch Tracking Branch"] \
+		-variable @opt_fetch
+	pack $w.options.fetch -anchor nw
+
+	${NS}::checkbutton $w.options.detach \
+		-text [mc "Detach From Local Branch"] \
+		-variable @opt_detach
+	pack $w.options.detach -anchor nw
+
+	pack $w.options -anchor nw -fill x -pady 5 -padx 5
+
+	bind $w <Visibility> [cb _visible]
+	bind $w <Key-Escape> [list destroy $w]
+	bind $w <Key-Return> [cb _checkout]\;break
+	wm deiconify $w
+	tkwait window $w
+}
+
+method _checkout {} {
+	set spec [$w_rev get_tracking_branch]
+	if {$spec ne {} && $opt_fetch} {
+		set new {}
+	} elseif {[catch {set new [$w_rev commit_or_die]}]} {
+		return
+	}
+
+	if {$opt_detach} {
+		set ref {}
+	} else {
+		set ref [$w_rev get_local_branch]
+	}
+
+	set co [::checkout_op::new [$w_rev get] $new $ref]
+	$co parent $w
+	$co enable_checkout 1
+	if {$spec ne {} && $opt_fetch} {
+		$co enable_fetch $spec
+	}
+
+	if {[$co run]} {
+		destroy $w
+	} else {
+		$w_rev focus_filter
+	}
+}
+
+method _visible {} {
+	grab $w
+	$w_rev focus_filter
+}
+
+}