1/*
2 * Copyright (C) 2014 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#import "config.h"
27#import "WKFormSelectControl.h"
28
29#if PLATFORM(IOS)
30
31#import "WKContentView.h"
32#import "WKContentViewInteraction.h"
33#import "WKFormPopover.h"
34#import "WebPageProxy.h"
35#import <CoreFoundation/CFUniChar.h>
36#import <UIKit/UIApplication_Private.h>
37#import <UIKit/UIDevice_Private.h>
38#import <UIKit/UIKeyboard_Private.h>
39#import <UIKit/UIPickerView.h>
40#import <UIKit/UIPickerView_Private.h>
41#import <UIKit/UIStringDrawing_Private.h>
42#import <UIKit/UIWebFormAccessory.h>
43#import <wtf/RetainPtr.h>
44
45using namespace WebKit;
46
47static const CGFloat minimumOptionFontSize = 12;
48
49CGFloat adjustedFontSize(CGFloat textWidth, UIFont *font, CGFloat initialFontSize, const Vector<OptionItem>& items)
50{
51    CGFloat adjustedSize = initialFontSize;
52    for (size_t i = 0; i < items.size(); ++i) {
53        const OptionItem& item = items[i];
54        if (item.text.isEmpty())
55            continue;
56
57        CGFloat actualFontSize = initialFontSize;
58        [(NSString *)item.text _legacy_sizeWithFont:font minFontSize:minimumOptionFontSize actualFontSize:&actualFontSize forWidth:textWidth lineBreakMode:NSLineBreakByWordWrapping];
59
60        if (actualFontSize > 0 && actualFontSize < adjustedSize)
61            adjustedSize = actualFontSize;
62    }
63    return adjustedSize;
64}
65
66@implementation WKFormSelectControl {
67    RetainPtr<id<WKFormControl>> _control;
68}
69
70- (instancetype)initWithView:(WKContentView *)view
71{
72    if (!(self = [super init]))
73        return nil;
74
75    bool hasGroups = false;
76    for (size_t i = 0; i < view.assistedNodeInformation.selectOptions.size(); ++i) {
77        if (view.assistedNodeInformation.selectOptions[i].isGroup) {
78            hasGroups = true;
79            break;
80        }
81    }
82
83    if (UICurrentUserInterfaceIdiomIsPad())
84        _control = adoptNS([[WKSelectPopover alloc] initWithView:view hasGroups:hasGroups]);
85    else if (view.assistedNodeInformation.isMultiSelect || hasGroups)
86        _control = adoptNS([[WKMultipleSelectPicker alloc] initWithView:view]);
87    else
88        _control = adoptNS([[WKSelectSinglePicker alloc] initWithView:view]);
89
90    return self;
91}
92
93+ (WKFormSelectControl *)createPeripheralWithView:(WKContentView *)view
94{
95    return [[WKFormSelectControl alloc] initWithView:view];
96}
97
98- (UIView *)assistantView
99{
100    return [_control controlView];
101}
102
103- (void)beginEditing
104{
105    [_control controlBeginEditing];
106}
107
108- (void)endEditing
109{
110    [_control controlEndEditing];
111}
112
113@end
114
115#endif  // PLATFORM(IOS)
116