blob: ceca7d2af15084b12390b262a07e48628b1e135c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#import "chrome/browser/ui/cocoa/url_drop_target.h"
#include "base/basictypes.h"
#import "third_party/mozilla/NSPasteboard+Utils.h"
@interface URLDropTargetHandler(Private)
// Gets the appropriate drag operation given the |NSDraggingInfo|.
- (NSDragOperation)getDragOperation:(id<NSDraggingInfo>)sender;
// Tell the window controller to hide the drop indicator.
- (void)hideIndicator;
@end // @interface URLDropTargetHandler(Private)
@implementation URLDropTargetHandler
+ (NSArray*)handledDragTypes {
return [NSArray arrayWithObjects:kWebURLsWithTitlesPboardType,
NSURLPboardType,
NSStringPboardType,
NSFilenamesPboardType,
nil];
}
- (id)initWithView:(NSView<URLDropTarget>*)view {
if ((self = [super init])) {
view_ = view;
[view_ registerForDraggedTypes:[URLDropTargetHandler handledDragTypes]];
}
return self;
}
// The following four methods implement parts of the |NSDraggingDestination|
// protocol, which the owner should "forward" to its |URLDropTargetHandler|
// (us).
- (NSDragOperation)draggingEntered:(id<NSDraggingInfo>)sender {
return [self getDragOperation:sender];
}
- (NSDragOperation)draggingUpdated:(id<NSDraggingInfo>)sender {
NSDragOperation dragOp = [self getDragOperation:sender];
if (dragOp == NSDragOperationCopy) {
// Just tell the window controller to update the indicator.
NSPoint hoverPoint = [view_ convertPoint:[sender draggingLocation]
fromView:nil];
[[view_ urlDropController] indicateDropURLsInView:view_ at:hoverPoint];
}
return dragOp;
}
- (void)draggingExited:(id<NSDraggingInfo>)sender {
[self hideIndicator];
}
- (BOOL)performDragOperation:(id<NSDraggingInfo>)sender {
[self hideIndicator];
NSPasteboard* pboard = [sender draggingPasteboard];
NSArray* supportedTypes = [NSArray arrayWithObjects:NSStringPboardType, nil];
NSString* bestType = [pboard availableTypeFromArray:supportedTypes];
NSPoint dropPoint =
[view_ convertPoint:[sender draggingLocation] fromView:nil];
// Tell the window controller about the dropped URL(s).
if ([pboard containsURLData]) {
NSArray* urls = nil;
NSArray* titles; // discarded
[pboard getURLs:&urls andTitles:&titles convertingFilenames:YES];
if ([urls count]) {
[[view_ urlDropController] dropURLs:urls inView:view_ at:dropPoint];
return YES;
}
} else if (NSString* text = [pboard stringForType:bestType]) {
// This does not include any URLs, so treat it as plain text if we can
// get NSString.
[[view_ urlDropController] dropText:text inView:view_ at:dropPoint];
return YES;
}
return NO;
}
@end // @implementation URLDropTargetHandler
@implementation URLDropTargetHandler(Private)
- (NSDragOperation)getDragOperation:(id<NSDraggingInfo>)sender {
NSPasteboard* pboard = [sender draggingPasteboard];
NSArray *supportedTypes = [NSArray arrayWithObjects:NSStringPboardType, nil];
NSString *bestType = [pboard availableTypeFromArray:supportedTypes];
if (![pboard containsURLData] && ![pboard stringForType:bestType])
return NSDragOperationNone;
// Only allow the copy operation.
return [sender draggingSourceOperationMask] & NSDragOperationCopy;
}
- (void)hideIndicator {
[[view_ urlDropController] hideDropURLsIndicatorInView:view_];
}
@end // @implementation URLDropTargetHandler(Private)
|
