blob: bf2641c540c43b5bed132f673e18b4970f3d0cf7 (
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
|
// Copyright (c) 2009 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/cocoa/styled_text_field.h"
#include "base/logging.h"
#import "chrome/browser/cocoa/styled_text_field_cell.h"
@implementation StyledTextField
- (StyledTextFieldCell*)styledTextFieldCell {
DCHECK([[self cell] isKindOfClass:[StyledTextFieldCell class]]);
return static_cast<StyledTextFieldCell*>([self cell]);
}
// Cocoa text fields are edited by placing an NSTextView as subview,
// positioned by the cell's -editWithFrame:inView:... method. Using
// the standard -makeFirstResponder: machinery to reposition the field
// editor results in resetting the field editor's editing state, which
// AutocompleteEditViewMac monitors. This causes problems because
// editing can require the field editor to be repositioned, which
// could disrupt editing. This code repositions the subview directly,
// which causes no editing-state changes.
- (void)resetFieldEditorFrameIfNeeded {
// No action if not editing.
NSText* editor = [self currentEditor];
if (!editor) {
return;
}
// When editing, we should have exactly one subview, which is a
// clipview containing the editor (for purposes of scrolling).
NSArray* subviews = [self subviews];
DCHECK_EQ([subviews count], 1U);
DCHECK([editor isDescendantOf:self]);
if ([subviews count] == 0) {
return;
}
// If the frame is already right, don't make any visible changes.
StyledTextFieldCell* cell = [self styledTextFieldCell];
const NSRect frame([cell drawingRectForBounds:[self bounds]]);
NSView* subview = [subviews objectAtIndex:0];
if (NSEqualRects(frame, [subview frame])) {
return;
}
[subview setFrame:frame];
// Make sure the selection remains visible.
// TODO(shess) This could be janky if it jerks the visible region
// around too much. I believe that text fields only scroll in
// response to selection movement (continuing the selection past the
// edge, or arrowing the cursor around).
[editor scrollRangeToVisible:[editor selectedRange]];
}
- (CGFloat)availableDecorationWidth {
NSAttributedString* as = [self attributedStringValue];
const NSSize size([as size]);
const NSRect bounds([self bounds]);
return NSWidth(bounds) - size.width;
}
@end
|
