WKFormSelectControl.mm   [plain text]

/*
* Copyright (C) 2014 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/

#import "config.h"
#import "WKFormSelectControl.h"

#if PLATFORM(IOS_FAMILY)

#import "UIKitSPI.h"
#import "WKContentView.h"
#import "WKContentViewInteraction.h"
#import "WKFormPopover.h"
#import "WKFormSelectPicker.h"
#import "WKFormSelectPopover.h"
#import "WebPageProxy.h"
#import <UIKit/UIPickerView.h>
#import <wtf/RetainPtr.h>

using namespace WebKit;

static const CGFloat minimumOptionFontSize = 12;

CGFloat adjustedFontSize(CGFloat textWidth, UIFont *font, CGFloat initialFontSize, const Vector<OptionItem>& items)
{
CGFloat adjustedSize = initialFontSize;
for (size_t i = 0; i < items.size(); ++i) {
const OptionItem& item = items[i];
if (item.text.isEmpty())
continue;

CGFloat actualFontSize = initialFontSize;
[(NSString *)item.text _legacy_sizeWithFont:font minFontSize:minimumOptionFontSize actualFontSize:&actualFontSize forWidth:textWidth lineBreakMode:NSLineBreakByWordWrapping];

if (actualFontSize > 0 && actualFontSize < adjustedSize)
adjustedSize = actualFontSize;
}
return adjustedSize;
}

@implementation WKFormSelectControl {
RetainPtr<NSObject<WKFormControl>> _control;
}

- (instancetype)initWithView:(WKContentView *)view
{
bool hasGroups = false;
for (size_t i = 0; i < view.focusedElementInformation.selectOptions.size(); ++i) {
if (view.focusedElementInformation.selectOptions[i].isGroup) {
hasGroups = true;
break;
}
}

RetainPtr<NSObject <WKFormControl>> control;
if (currentUserInterfaceIdiomIsPad())
control = adoptNS([[WKSelectPopover alloc] initWithView:view hasGroups:hasGroups]);
else if (view.focusedElementInformation.isMultiSelect || hasGroups)
control = adoptNS([[WKMultipleSelectPicker alloc] initWithView:view]);
else
control = adoptNS([[WKSelectSinglePicker alloc] initWithView:view]);

return [super initWithView:view control:WTFMove(control)];
}

@end

@implementation WKFormSelectControl(WKTesting)

- (void)selectRow:(NSInteger)rowIndex inComponent:(NSInteger)componentIndex extendingSelection:(BOOL)extendingSelection
{
if ([self.control respondsToSelector:@selector(selectRow:inComponent:extendingSelection:)])
[id<WKSelectTesting>(self.control) selectRow:rowIndex inComponent:componentIndex extendingSelection:extendingSelection];
}

- (NSString *)selectFormPopoverTitle
{
if (![self.control isKindOfClass:[WKSelectPopover class]])
return nil;
return [(WKSelectPopover *)self.control tableViewController].title;
}

@end

#endif // PLATFORM(IOS_FAMILY)