scummvm/backends/platform/ios7/ios7_keyboard.mm
2020-08-29 16:31:37 +01:00

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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "backends/platform/ios7/ios7_keyboard.h"
#include "common/keyboard.h"
@interface UITextInputTraits
- (void)setAutocorrectionType:(int)type;
- (void)setAutocapitalizationType:(int)type;
- (void)setEnablesReturnKeyAutomatically:(BOOL)val;
@end
@interface TextInputHandler : UITextView {
SoftKeyboard *softKeyboard;
UIToolbar *toolbar;
UIScrollView *scrollView;
}
- (id)initWithKeyboard:(SoftKeyboard *)keyboard;
- (void)dealloc;
- (void)attachAccessoryView;
- (void)detachAccessoryView;
@end
@implementation TextInputHandler
- (id)initWithKeyboard:(SoftKeyboard *)keyboard {
self = [super initWithFrame:CGRectMake(0.0f, 0.0f, 0.0f, 0.0f)];
softKeyboard = keyboard;
[self setAutocorrectionType:UITextAutocorrectionTypeNo];
[self setAutocapitalizationType:UITextAutocapitalizationTypeNone];
[self setEnablesReturnKeyAutomatically:NO];
// Hide the input assistent bar. The API is only available since IOS 9.0.
// The code only compils with the iOS 9.0+ SDK, and only works on iOS 9.0
// or above.
#ifdef __IPHONE_9_0
#if __has_builtin(__builtin_available)
if ( @available(iOS 9,*) ) {
#else
if ( [self respondsToSelector:@selector(inputAssistantItem)] ) {
#endif
UITextInputAssistantItem* item = [self inputAssistantItem];
if (item) {
item.leadingBarButtonGroups = @[];
item.trailingBarButtonGroups = @[];
}
}
#endif
toolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 0.0f, 0.0f)];
toolbar.barTintColor = keyboard.backgroundColor;
toolbar.tintColor = keyboard.tintColor;
toolbar.translucent = NO;
toolbar.items = @[
// GMM button
[[[UIBarButtonItem alloc] initWithTitle:@"\u2630" style:UIBarButtonItemStylePlain target:self action:@selector(mainMenuKey)] autorelease],
// Escape key
[[[UIBarButtonItem alloc] initWithTitle:@"Esc" style:UIBarButtonItemStylePlain target:self action:@selector(escapeKey)] autorelease],
// Tab key
[[[UIBarButtonItem alloc] initWithTitle:@"Tab" style:UIBarButtonItemStylePlain target:self action:@selector(tabKey)] autorelease],
// Return key
[[[UIBarButtonItem alloc] initWithTitle:@"\u23ce" style:UIBarButtonItemStylePlain target:self action:@selector(returnKey)] autorelease],
// Function keys
[[[UIBarButtonItem alloc] initWithTitle:@"F1" style:UIBarButtonItemStylePlain target:self action:@selector(fn1Key)] autorelease],
[[[UIBarButtonItem alloc] initWithTitle:@"F2" style:UIBarButtonItemStylePlain target:self action:@selector(fn2Key)] autorelease],
[[[UIBarButtonItem alloc] initWithTitle:@"F3" style:UIBarButtonItemStylePlain target:self action:@selector(fn3Key)] autorelease],
[[[UIBarButtonItem alloc] initWithTitle:@"F4" style:UIBarButtonItemStylePlain target:self action:@selector(fn4Key)] autorelease],
[[[UIBarButtonItem alloc] initWithTitle:@"F5" style:UIBarButtonItemStylePlain target:self action:@selector(fn5Key)] autorelease],
[[[UIBarButtonItem alloc] initWithTitle:@"F6" style:UIBarButtonItemStylePlain target:self action:@selector(fn6Key)] autorelease],
[[[UIBarButtonItem alloc] initWithTitle:@"F7" style:UIBarButtonItemStylePlain target:self action:@selector(fn7Key)] autorelease],
[[[UIBarButtonItem alloc] initWithTitle:@"F8" style:UIBarButtonItemStylePlain target:self action:@selector(fn8Key)] autorelease],
[[[UIBarButtonItem alloc] initWithTitle:@"F9" style:UIBarButtonItemStylePlain target:self action:@selector(fn9Key)] autorelease],
[[[UIBarButtonItem alloc] initWithTitle:@"F10" style:UIBarButtonItemStylePlain target:self action:@selector(fn10Key)] autorelease],
[[[UIBarButtonItem alloc] initWithTitle:@"F11" style:UIBarButtonItemStylePlain target:self action:@selector(fn11Key)] autorelease],
[[[UIBarButtonItem alloc] initWithTitle:@"F12" style:UIBarButtonItemStylePlain target:self action:@selector(fn12Key)] autorelease],
// Arrow keys
[[[UIBarButtonItem alloc] initWithTitle:@"\u2190" style:UIBarButtonItemStylePlain target:self action:@selector(leftArrowKey)] autorelease],
[[[UIBarButtonItem alloc] initWithTitle:@"\u2191" style:UIBarButtonItemStylePlain target:self action:@selector(upArrowKey)] autorelease],
[[[UIBarButtonItem alloc] initWithTitle:@"\u2192" style:UIBarButtonItemStylePlain target:self action:@selector(rightArrowKey)] autorelease],
[[[UIBarButtonItem alloc] initWithTitle:@"\u2193" style:UIBarButtonItemStylePlain target:self action:@selector(downArrowKey)] autorelease],
// Spacer at the end
[[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil] autorelease],
];
self.inputAccessoryView = toolbar;
[toolbar sizeToFit];
scrollView = [[UIScrollView alloc] init];
scrollView.frame = toolbar.frame;
scrollView.bounds = toolbar.bounds;
scrollView.autoresizingMask = toolbar.autoresizingMask;
scrollView.showsVerticalScrollIndicator = false;
scrollView.showsHorizontalScrollIndicator = false;
toolbar.autoresizingMask = UIViewAutoresizingNone;
[scrollView addSubview:toolbar];
self.inputAccessoryView = scrollView;
return self;
}
-(void)dealloc {
[toolbar release];
[scrollView release];
[super dealloc];
}
- (void)attachAccessoryView {
self.inputAccessoryView.hidden = NO;
// Alternatively we could add/remove instead of show/hide the inpute accessory view
// self.inputAccessoryView = scrollView;
// [self reloadInputViews];
// We need at least a width of 768 pt for the toolbar. If we add more buttons this may need to be increased.
toolbar.frame = CGRectMake(0, 0, MAX(768, [[UIScreen mainScreen] bounds].size.width), toolbar.frame.size.height);
toolbar.bounds = toolbar.frame;
scrollView.contentSize = toolbar.frame.size;
}
- (void)detachAccessoryView {
self.inputAccessoryView.hidden = YES;
// Alternatively we could add/remove instead of show/hide the inpute accessory view
// self.inputAccessoryView = nil;
// [self reloadInputViews];
}
- (NSArray *)keyCommands {
UIKeyCommand *upArrow = [UIKeyCommand keyCommandWithInput: UIKeyInputUpArrow modifierFlags: 0 action: @selector(upArrow:)];
UIKeyCommand *downArrow = [UIKeyCommand keyCommandWithInput: UIKeyInputDownArrow modifierFlags: 0 action: @selector(downArrow:)];
UIKeyCommand *leftArrow = [UIKeyCommand keyCommandWithInput: UIKeyInputLeftArrow modifierFlags: 0 action: @selector(leftArrow:)];
UIKeyCommand *rightArrow = [UIKeyCommand keyCommandWithInput: UIKeyInputRightArrow modifierFlags: 0 action: @selector(rightArrow:)];
return [[NSArray alloc] initWithObjects: upArrow, downArrow, leftArrow, rightArrow, nil];
}
- (void) upArrow: (UIKeyCommand *) keyCommand {
[softKeyboard handleKeyPress:Common::KEYCODE_UP];
}
- (void) downArrow: (UIKeyCommand *) keyCommand {
[softKeyboard handleKeyPress:Common::KEYCODE_DOWN];
}
- (void) leftArrow: (UIKeyCommand *) keyCommand {
[softKeyboard handleKeyPress:Common::KEYCODE_LEFT];
}
- (void) rightArrow: (UIKeyCommand *) keyCommand {
[softKeyboard handleKeyPress:Common::KEYCODE_RIGHT];
}
- (void) mainMenuKey {
[softKeyboard handleMainMenuKey];
}
- (void) escapeKey {
[softKeyboard handleKeyPress:Common::KEYCODE_ESCAPE];
}
- (void) tabKey {
[softKeyboard handleKeyPress:Common::KEYCODE_TAB];
}
- (void) fn1Key {
[softKeyboard handleKeyPress:Common::KEYCODE_F1];
}
- (void) fn2Key {
[softKeyboard handleKeyPress:Common::KEYCODE_F2];
}
- (void) fn3Key {
[softKeyboard handleKeyPress:Common::KEYCODE_F3];
}
- (void) fn4Key {
[softKeyboard handleKeyPress:Common::KEYCODE_F4];
}
- (void) fn5Key {
[softKeyboard handleKeyPress:Common::KEYCODE_F5];
}
- (void) fn6Key {
[softKeyboard handleKeyPress:Common::KEYCODE_F6];
}
- (void) fn7Key {
[softKeyboard handleKeyPress:Common::KEYCODE_F7];
}
- (void) fn8Key {
[softKeyboard handleKeyPress:Common::KEYCODE_F8];
}
- (void) fn9Key {
[softKeyboard handleKeyPress:Common::KEYCODE_F9];
}
- (void) fn10Key {
[softKeyboard handleKeyPress:Common::KEYCODE_F10];
}
- (void) fn11Key {
[softKeyboard handleKeyPress:Common::KEYCODE_F11];
}
- (void) fn12Key {
[softKeyboard handleKeyPress:Common::KEYCODE_F12];
}
- (void) leftArrowKey {
[softKeyboard handleKeyPress:Common::KEYCODE_LEFT];
}
- (void) upArrowKey {
[softKeyboard handleKeyPress:Common::KEYCODE_UP];
}
- (void) rightArrowKey {
[softKeyboard handleKeyPress:Common::KEYCODE_RIGHT];
}
- (void) downArrowKey {
[softKeyboard handleKeyPress:Common::KEYCODE_DOWN];
}
- (void) returnKey {
[softKeyboard handleKeyPress:Common::KEYCODE_RETURN];
}
@end
@implementation SoftKeyboard
- (id)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
inputDelegate = nil;
inputView = [[TextInputHandler alloc] initWithKeyboard:self];
inputView.delegate = self;
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(prepareKeyboard:) name:UIKeyboardWillShowNotification object:nil];
return self;
}
- (void)dealloc {
[[NSNotificationCenter defaultCenter] removeObserver:self];
[super dealloc];
}
- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text {
unichar c;
if (text.length) {
c = [text characterAtIndex:0];
}
else {
c = '\b';
}
[inputDelegate handleKeyPress:c];
return YES;
}
- (UITextView *)inputView {
return inputView;
}
- (void)setInputDelegate:(id)delegate {
inputDelegate = delegate;
}
- (void)handleKeyPress:(unichar)c {
[inputDelegate handleKeyPress:c];
}
- (void)handleMainMenuKey {
[inputDelegate handleMainMenuKey];
}
- (void)prepareKeyboard:(NSNotification *)notification {
// Check if a hardware keyboard is connected, and only show the accessory view if there isn't one.
// If there is a hardware keyboard, the software one will only contains the text assistance bar
// and will be small (less than 100 pt, but use a bit more in case it changes with future iOS versions).
// This only works with iOS 9 and above. For ealier version the keyboard size is fixed and instead it
// only shows part of the keyboard (which could be detected with the origin position, but that would
// depend on the current orientation and screen resolution).
NSDictionary* info = [notification userInfo];
CGRect keyboardEndFrame = [[info objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue];
if (keyboardEndFrame.size.height < 140)
[inputView detachAccessoryView];
else
[inputView attachAccessoryView];
}
- (void)showKeyboard {
[inputView becomeFirstResponder];
}
- (void)hideKeyboard {
[inputView endEditing:YES];
}
@end