allow for drag and drop on iconImageView to update custom icons

2025-12-22 19:59:29 +00:00 · 2017-09-18 11:21:32 +02:00
parent 9ac3caa5b5
commit c444c27a98
9 changed files with 68 additions and 39 deletions
--- a/MacPass/MPIconImageView.m
+++ b/MacPass/MPIconImageView.m
@@ -0,0 +1,138 @@
+//
+//  MPPopupImageView.m
+//  MacPass
+//
+//  Created by Michael Starke on 10.03.13.
+//  Copyright (c) 2013 HicknHack Software GmbH. All rights reserved.
+//
+//  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, see <http://www.gnu.org/licenses/>.
+//
+
+#import "MPIconImageView.h"
+#import "MPModelChangeObserving.h"
+#import "MPDocument.h"
+
+#define MPTRIANGLE_HEIGHT 8
+#define MPTRIANGLE_WIDTH 10
+#define MPTRIANGLE_OFFSET 2
+
+@interface MPIconImageView ()
+
+@property (assign) BOOL showOverlay;
+
+- (void)_setupView;
+
+@end
+
+@implementation MPIconImageView
+
+- (id)initWithFrame:(NSRect)frameRect {
+  self = [super initWithFrame:frameRect];
+  if(self) {
+    [self _setupView];
+  }
+  return self;
+}
+
+- (id)initWithCoder:(NSCoder *)aDecoder {
+  self = [super initWithCoder:aDecoder];
+  if(self) {
+    [self _setupView];
+  }
+  return self;
+}
+
+- (void)drawRect:(NSRect)dirtyRect
+{
+  
+  if(self.showOverlay && self.enabled) {
+    [[NSGraphicsContext currentContext] saveGraphicsState];
+    
+    NSBezierPath *path = [NSBezierPath bezierPathWithRoundedRect:[self bounds] xRadius:4 yRadius:4];
+    
+    NSShadow *shadow = [[NSShadow alloc] init];
+    shadow.shadowBlurRadius = 6;
+    shadow.shadowOffset = NSMakeSize(0, 0);
+    shadow.shadowColor =  [NSColor colorWithCalibratedWhite:0.2 alpha:1];
+    [shadow set];
+    
+    [path addClip];
+    [[NSColor colorWithCalibratedWhite:1 alpha:0.2] setFill];
+    [path fill];
+    NSBezierPath *strokePath = [NSBezierPath bezierPathWithRoundedRect:NSInsetRect([self bounds], -3, -3) xRadius:4 yRadius:4];
+    strokePath.lineWidth = 6;
+    [strokePath stroke];
+    [NSGraphicsContext.currentContext restoreGraphicsState];
+  }
+  [super drawRect:dirtyRect];
+}
+
+- (void)mouseEntered:(NSEvent *)theEvent {
+  self.showOverlay = YES;
+  self.needsDisplay = YES;
+  [super mouseEntered:theEvent];
+}
+
+- (void)mouseExited:(NSEvent *)theEvent {
+  self.showOverlay = NO;
+  self.needsDisplay = YES;
+  [super mouseExited:theEvent];
+}
+
+- (void)mouseDown:(NSEvent *)theEvent {
+  if(self.enabled) {
+    [self sendAction:self.action to:self.target];
+  }
+}
+
+- (void)_setupView {
+  [self registerForDraggedTypes:@[(NSString *)kUTTypeURL, (NSString *)kUTTypeFileURL]];
+  /* Add tracking area for mouse events */
+  NSTrackingArea *trackingArea = [[NSTrackingArea alloc] initWithRect:[self bounds]
+                                                              options:(NSTrackingMouseEnteredAndExited | NSTrackingActiveInKeyWindow)
+                                                                owner:self
+                                                             userInfo:nil];
+  [self addTrackingArea:trackingArea];
+}
+
+- (NSDragOperation)draggingEntered:(id<NSDraggingInfo>)sender {
+  return NSDragOperationCopy;
+}
+
+- (void)setImage:(NSImage *)image {
+  /*
+    setImage is only called via drag'n'drop. We are bound so we ignore this.
+   */
+}
+
+- (BOOL)performDragOperation:(id<NSDraggingInfo>)sender {
+  NSPasteboard *pBoard = [sender draggingPasteboard];
+  NSArray *urls = [pBoard readObjectsForClasses:@[NSURL.class] options:@{ NSPasteboardURLReadingFileURLsOnlyKey : @YES }];
+  if(urls.count != 1) {
+    return NO;
+  }
+  
+  KPKIcon *icon = [[KPKIcon alloc] initWithImageAtURL:urls.firstObject];
+  if(icon.image) {
+    MPDocument *document = [NSDocumentController sharedDocumentController].currentDocument;
+    [document.tree.metaData addCustomIcon:icon];
+  }
+  [self.modelChangeObserver willChangeModelProperty];
+  self.node.iconUUID = icon.uuid;
+  [self.modelChangeObserver didChangeModelProperty];
+  return YES;
+}
+
+@end