accounts: import/export

Allow import/export of accounts in the preferences.
PathPasswordWC is a generic modal window asking for a path and a
password. It is used for both export and import UI.

Tuleap: #335
Change-Id: Ic478140e64b51d10672ef466509326fc17be2712
diff --git a/src/PathPasswordWC.mm b/src/PathPasswordWC.mm
new file mode 100644
index 0000000..e2adf4e
--- /dev/null
+++ b/src/PathPasswordWC.mm
@@ -0,0 +1,110 @@
+/*
+ *  Copyright (C) 2016 Savoir-faire Linux Inc.
+ *  Author: Alexandre Lision <alexandre.lision@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
+ */
+#import "PathPasswordWC.h"
+
+#import "views/ITProgressIndicator.h"
+
+@interface PathPasswordWC() <NSTextFieldDelegate>{
+
+    __unsafe_unretained IBOutlet NSView* errorContainer;
+    __unsafe_unretained IBOutlet NSTextField* errorLabel;
+
+    __unsafe_unretained IBOutlet ITProgressIndicator* progressView;
+
+    __unsafe_unretained IBOutlet NSView* pathPasswordContainer;
+    __unsafe_unretained IBOutlet NSSecureTextField* passwordField;
+    __unsafe_unretained IBOutlet NSPathControl* path;
+
+}
+
+@end
+
+@implementation PathPasswordWC {
+    struct {
+        unsigned int didComplete:1;
+        unsigned int didCompleteWithActionCode:1;
+    } delegateRespondsTo;
+}
+
+- (id)initWithDelegate:(id <PathPasswordDelegate>) del actionCode:(NSInteger) code
+{
+    if ((self = [super initWithWindowNibName:@"PathPasswordWindow"]) != nil) {
+        [self setDelegate:del];
+        self.actionCode = code;
+    }
+    return self;
+}
+
+- (void)windowDidLoad
+{
+    [super windowDidLoad];
+    [path setURL: [NSURL fileURLWithPath:NSHomeDirectory()]];
+    [progressView setNumberOfLines:30];
+    [progressView setWidthOfLine:2];
+    [progressView setLengthOfLine:5];
+    [progressView setInnerMargin:20];
+    [progressView setHidden:YES];
+}
+
+- (void)setDelegate:(id <PathPasswordDelegate>)aDelegate
+{
+    if (self.delegate != aDelegate) {
+        _delegate = aDelegate;
+        delegateRespondsTo.didComplete = [self.delegate respondsToSelector:@selector(didCompleteWithPath:Password:)];
+        delegateRespondsTo.didCompleteWithActionCode = [self.delegate respondsToSelector:@selector(didCompleteWithPath:Password:ActionCode:)];
+    }
+}
+
+- (void) setAllowFileSelection:(BOOL) b
+{
+    _allowFileSelection = b;
+    [path setAllowedTypes:_allowFileSelection ? nil : [NSArray arrayWithObject:@"public.folder"]];
+}
+
+- (IBAction) cancelPressed:(id)sender
+{
+    [NSApp endSheet:self.window];
+    [self.window orderOut:self];
+}
+
+- (IBAction)completeAction:(id)sender
+{
+    if (delegateRespondsTo.didComplete)
+        [self.delegate didCompleteWithPath:path.URL Password:passwordField.stringValue];
+    else if (delegateRespondsTo.didCompleteWithActionCode)
+        [self.delegate didCompleteWithPath:path.URL Password:passwordField.stringValue ActionCode:self.actionCode];
+}
+
+- (void)showLoading
+{
+    [progressView setHidden:NO];
+    [pathPasswordContainer setHidden:YES];
+    [errorContainer setHidden:YES];
+    [progressView setAnimates:YES];
+}
+
+- (void)showError:(NSString*) error
+{
+    [progressView setHidden:YES];
+    [pathPasswordContainer setHidden:YES];
+    [errorContainer setHidden:NO];
+    [errorLabel setStringValue:error];
+}
+
+@end