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
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
// 26 august 2014
#include "objc_darwin.h"
#include <Cocoa/Cocoa.h>
// We would be able to just use plain old NSPopover here, but alas that steals focus.
// NSPopovers are intended for interactive content, and Apple seems to be diligent in enforcing this rule, as the known techniques for preventing a NSPopover from stealing focus no longer work in 10.9.
// Let's just fake it with a window.
// TODO better would be to use NSImageNameInvalidDataFreestandingTemplate somehow
@interface goWarningPopover : NSWindow {
@public
id onBegin;
id onEnd;
id textfield;
NSTextView *tv;
}
@end
@implementation goWarningPopover
- (id)init
{
self = [super initWithContentRect:NSZeroRect
styleMask:NSBorderlessWindowMask
backing:NSBackingStoreBuffered
defer:YES];
[self setOpaque:NO];
[self setHasShadow:YES];
[self setExcludedFromWindowsMenu:YES];
[self setMovableByWindowBackground:NO];
[self setLevel:NSPopUpMenuWindowLevel];
[self setHidesOnDeactivate:YES];
self->onBegin = nil;
self->onEnd = nil;
return self;
}
- (void)close
{
if (self->onBegin != nil) {
[[NSNotificationCenter defaultCenter] removeObserver:self->onBegin];
self->onBegin = nil;
}
if (self->onEnd != nil) {
[[NSNotificationCenter defaultCenter] removeObserver:self->onEnd];
self->onEnd = nil;
}
if (self->tv != nil)
[self->tv removeObserver:self forKeyPath:@"delegate"];
[super close];
}
- (BOOL)canBecomeKeyWindow
{
return NO;
}
- (BOOL)canBecomeMainWindow
{
return NO;
}
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context
{
if ([self->tv delegate] == self->textfield)
[self orderFront:self];
else
[self orderOut:self];
}
@end
@interface goWarningView : NSView {
@public
NSImageView *icon;
NSTextField *label;
}
@end
@implementation goWarningView
- (void)sizeToFitAndArrange
{
[self->label sizeToFit];
CGFloat labelheight, imageheight;
CGFloat targetwidth, imagewidth;
labelheight = [self->label frame].size.height;
imageheight = [[self->icon image] size].height;
imagewidth = [[self->icon image] size].width;
targetwidth = (imagewidth * labelheight) / imageheight;
[self->icon setFrameSize:NSMakeSize(targetwidth, labelheight)];
[self setFrameSize:NSMakeSize(targetwidth + [self->label frame].size.width, labelheight)];
[self->icon setFrameOrigin:NSMakePoint(0, 0)];
[self->label setFrameOrigin:NSMakePoint(targetwidth, 0)];
}
- (BOOL)acceptsFirstResponder
{
return NO;
}
@end
id newWarningPopover(char *text)
{
goWarningView *wv;
wv = [[goWarningView alloc] initWithFrame:NSZeroRect];
wv->icon = [[NSImageView alloc] initWithFrame:NSZeroRect];
[wv->icon setImage:[NSImage imageNamed:NSImageNameCaution]];
[wv->icon setImageFrameStyle:NSImageFrameNone];
[wv->icon setImageAlignment:NSImageAlignCenter];
[wv->icon setImageScaling:NSImageScaleProportionallyUpOrDown];
[wv->icon setEditable:NO];
[wv->icon setAnimates:NO];
[wv->icon setAllowsCutCopyPaste:NO];
[wv->icon setRefusesFirstResponder:YES];
wv->label = (NSTextField *) newLabel();
textfieldSetText((id) wv->label, text);
[wv->label setRefusesFirstResponder:YES];
[wv addSubview:wv->icon];
[wv addSubview:wv->label];
[wv sizeToFitAndArrange];
goWarningPopover *popover;
popover = [[goWarningPopover alloc] init]; // explicitly use our initializer
[[popover contentView] addSubview:wv];
[popover setContentSize:[wv frame].size];
return (id) popover;
}
void warningPopoverShow(id popover, id control)
{
goWarningPopover *p = (goWarningPopover *) popover;
NSView *v = (NSView *) control;
NSRect vr;
NSPoint vo;
// note that the frame is a rect of the superview
vr = [[v superview] convertRect:[v frame] toView:nil];
vo = [[v window] convertRectToScreen:vr].origin;
[p setFrameOrigin:NSMakePoint(vo.x, vo.y - [p frame].size.height)];
p->textfield = control;
p->tv = (NSTextView *) [[v window] fieldEditor:NO forObject:nil];
// thanks to http://stackoverflow.com/a/25562783/3408572 for suggesting KVO here
[p->tv addObserver:p forKeyPath:@"delegate" options:NSKeyValueObservingOptionNew context:NULL];
[p orderFront:p];
}
|
