Merge TIP 382 implementation to trunk. Still need Carbon migration & Cocoa.

3 files changed, 36 insertions, 38 deletions

diff --git a/doc/getOpenFile.n b/doc/getOpenFile.n
index 0296bfa..7ebae67 100644
--- a/doc/getOpenFile.n
+++ b/doc/getOpenFile.n
@@ -35,6 +35,12 @@ whether the existing file should be overwritten or not.
 The following \fIoption\-value\fR pairs are possible as command line
 arguments to these two commands:
 .TP
+\fB\-confirmoverwrite\fR \fIboolean\fR
+Configures how the Save dialog reacts when the selected file already
+exists, and saving would overwrite it.  A true value requests a
+confirmation dialog be presented to the user.  A false value requests
+that the overwrite take place without confirmation.  Default value is true.
+.TP
 \fB\-defaultextension\fR \fIextension\fR
 .
 Specifies a string that will be appended to the filename if the user
diff --git a/library/tkfbox.tcl b/library/tkfbox.tcl
index 4cdcaf3..6354300 100644
--- a/library/tkfbox.tcl
+++ b/library/tkfbox.tcl
@@ -266,6 +266,12 @@ proc ::tk::dialog::file::Config {dataName type argList} {
 	lappend specs {-multiple "" "" "0"}
     }
 
+    # The "-confirmoverwrite" option is only for the "save" file dialog.
+    #
+    if {$type eq "save"} {
+	lappend specs {-confirmoverwrite "" "" "1"}
+    }
+
     # 2: default values depending on the type of the dialog
     #
     if {![info exists data(selectPath)]} {
@@ -1121,7 +1127,7 @@ proc ::tk::dialog::file::Done {w {selectFilePath ""}} {
 	set Priv(selectFile) $data(selectFile)
 	set Priv(selectPath) $data(selectPath)
 
-	if {($data(type) eq "save") && [file exists $selectFilePath]} {
+	if {($data(type) eq "save") && $data(-confirmoverwrite) && [file exists $selectFilePath]} {
 	    set reply [tk_messageBox -icon warning -type yesno -parent $w \
 		    -message [mc "File \"%1\$s\" already exists.\nDo you want\
 		    to overwrite it?" $selectFilePath]]
diff --git a/win/tkWinDialog.c b/win/tkWinDialog.c
index 4dc8d9e..9ed5875 100644
--- a/win/tkWinDialog.c
+++ b/win/tkWinDialog.c
@@ -576,6 +576,7 @@ GetFileName(
     OFNData ofnData;
     int cdlgerr;
     int filterIndex = 0, result = TCL_ERROR, winCode, oldMode, i, multi = 0;
+    int inValue, confirmOverwrite = 1;
     const char *extension = NULL, *title = NULL;
     Tk_Window tkwin = clientData;
     HWND hWnd;
@@ -587,16 +588,20 @@ GetFileName(
 	    Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
     static const char *const saveOptionStrings[] = {
 	"-defaultextension", "-filetypes", "-initialdir", "-initialfile",
-	"-parent", "-title", "-typevariable", NULL
+	"-parent", "-title", "-typevariable",
+	"-confirmoverwrite",
+	NULL
     };
     static const char *const openOptionStrings[] = {
 	"-defaultextension", "-filetypes", "-initialdir", "-initialfile",
-	"-multiple", "-parent", "-title", "-typevariable", NULL
+	"-parent", "-title", "-typevariable",
+	"-multiple",
+	NULL
     };
-    const char *const *optionStrings;
     enum options {
-	FILE_DEFAULT,	FILE_TYPES,	FILE_INITDIR,	FILE_INITFILE,
-	FILE_MULTIPLE,	FILE_PARENT,	FILE_TITLE,     FILE_TYPEVARIABLE
+	FILE_DEFAULT,	FILE_TYPES,	FILE_INITDIR, FILE_INITFILE,
+	FILE_PARENT,	FILE_TITLE, FILE_TYPEVARIABLE,
+	FILE_MULTIPLE_OR_CONFIRMOW
     };
 
     file[0] = '\0';
@@ -604,16 +609,6 @@ GetFileName(
     Tcl_DStringInit(&utfFilterString);
     Tcl_DStringInit(&utfDirString);
 
-    /*
-     * Parse the arguments.
-     */
-
-    if (open) {
-	optionStrings = openOptionStrings;
-    } else {
-	optionStrings = saveOptionStrings;
-    }
-
     for (i = 1; i < objc; i += 2) {
 	int index;
 	const char *string;
@@ -622,26 +617,12 @@ GetFileName(
 	optionPtr = objv[i];
 	valuePtr = objv[i + 1];
 
-	if (Tcl_GetIndexFromObj(interp, optionPtr, optionStrings,
+	if (Tcl_GetIndexFromObj(interp, optionPtr,
+		open ? openOptionStrings : saveOptionStrings,
 		"option", 0, &index) != TCL_OK) {
 	    goto end;
 	}
 
-	/*
-	 * We want to maximize code sharing between the open and save file
-	 * dialog implementations; in particular, the switch statement below.
-	 * We use different sets of option strings from the GetIndexFromObj
-	 * call above, but a single enumeration for both. The save file dialog
-	 * doesn't support -multiple, but it falls in the middle of the
-	 * enumeration. Ultimately, this means that when the index found by
-	 * GetIndexFromObj is >= FILE_MULTIPLE, when doing a save file dialog,
-	 * we have to increment the index, so that it matches the open file
-	 * dialog enumeration.
-	 */
-
-	if (!open && index >= FILE_MULTIPLE) {
-	    index++;
-	}
 	if (i + 1 == objc) {
 	    string = Tcl_GetString(optionPtr);
 	    Tcl_AppendResult(interp, "value for \"", string, "\" missing",
@@ -676,11 +657,6 @@ GetFileName(
 		    sizeof(file), NULL, NULL, NULL);
 	    Tcl_DStringFree(&ds);
 	    break;
-	case FILE_MULTIPLE:
-	    if (Tcl_GetBooleanFromObj(interp, valuePtr, &multi) != TCL_OK) {
-		return TCL_ERROR;
-	    }
-	    break;
 	case FILE_PARENT:
 	    tkwin = Tk_NameToWindow(interp, string, tkwin);
 	    if (tkwin == NULL) {
@@ -695,6 +671,16 @@ GetFileName(
 	    initialTypeObj = Tcl_ObjGetVar2(interp, typeVariableObj, NULL,
 		    TCL_GLOBAL_ONLY);
 	    break;
+	case FILE_MULTIPLE_OR_CONFIRMOW:
+	    if (Tcl_GetBooleanFromObj(interp, valuePtr, &inValue) != TCL_OK) {
+		return TCL_ERROR;
+	    }
+	    if (open) {
+		multi = inValue;
+	    } else {
+		confirmOverwrite = inValue;
+	    }
+	    break;
 	}
     }
 
@@ -723,7 +709,7 @@ GetFileName(
 
     if (open != 0) {
 	ofn.Flags |= OFN_FILEMUSTEXIST;
-    } else {
+    } else if (confirmOverwrite) {
 	ofn.Flags |= OFN_OVERWRITEPROMPT;
     }
     if (tsdPtr->debugFlag != 0) {