| /* |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, |
| software distributed under the License is distributed on an |
| "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| KIND, either express or implied. See the License for the |
| specific language governing permissions and limitations |
| under the License. |
| */ |
| |
| #import "CDVKeyboard.h" |
| #import <Cordova/CDVAvailability.h> |
| |
| #ifndef __CORDOVA_3_2_0 |
| #warning "The keyboard plugin is only supported in Cordova 3.2 or greater, it may not work properly in an older version. If you do use this plugin in an older version, make sure the HideKeyboardFormAccessoryBar and KeyboardShrinksView preference values are false." |
| #endif |
| |
| @interface CDVKeyboard () |
| |
| @property (nonatomic, readwrite, assign) BOOL keyboardIsVisible; |
| |
| @end |
| |
| @implementation CDVKeyboard |
| |
| @dynamic shrinkView, hideFormAccessoryBar; |
| |
| - (id)settingForKey:(NSString*)key |
| { |
| return [self.commandDelegate.settings objectForKey:[key lowercaseString]]; |
| } |
| |
| - (void)pluginInitialize |
| { |
| // SETTINGS //////////////////////// |
| |
| NSString* setting = nil; |
| |
| setting = @"HideKeyboardFormAccessoryBar"; |
| if ([self settingForKey:setting]) { |
| self.hideFormAccessoryBar = [(NSNumber*)[self settingForKey:setting] boolValue]; |
| } |
| |
| setting = @"KeyboardShrinksView"; |
| if ([self settingForKey:setting]) { |
| self.shrinkView = [(NSNumber*)[self settingForKey:setting] boolValue]; |
| } |
| |
| setting = @"DisableScrollingWhenKeyboardShrinksView"; |
| if ([self settingForKey:setting]) { |
| self.disableScrollingInShrinkView = [(NSNumber*)[self settingForKey:setting] boolValue]; |
| } |
| |
| ////////////////////////// |
| |
| NSNotificationCenter* nc = [NSNotificationCenter defaultCenter]; |
| __weak CDVKeyboard* weakSelf = self; |
| |
| _keyboardShowObserver = [nc addObserverForName:UIKeyboardDidShowNotification |
| object:nil |
| queue:[NSOperationQueue mainQueue] |
| usingBlock:^(NSNotification* notification) { |
| [weakSelf.commandDelegate evalJs:@"Keyboard.isVisible = true;"]; |
| weakSelf.keyboardIsVisible = YES; |
| }]; |
| _keyboardHideObserver = [nc addObserverForName:UIKeyboardDidHideNotification |
| object:nil |
| queue:[NSOperationQueue mainQueue] |
| usingBlock:^(NSNotification* notification) { |
| [weakSelf.commandDelegate evalJs:@"Keyboard.isVisible = false;"]; |
| weakSelf.keyboardIsVisible = NO; |
| }]; |
| } |
| |
| // ////////////////////////////////////////////////// |
| |
| - (BOOL)hideFormAccessoryBar |
| { |
| return _hideFormAccessoryBar; |
| } |
| |
| - (void)setHideFormAccessoryBar:(BOOL)ahideFormAccessoryBar |
| { |
| NSNotificationCenter* nc = [NSNotificationCenter defaultCenter]; |
| __weak CDVKeyboard* weakSelf = self; |
| |
| if (ahideFormAccessoryBar == _hideFormAccessoryBar) { |
| return; |
| } |
| |
| if (ahideFormAccessoryBar) { |
| [nc removeObserver:_hideFormAccessoryBarKeyboardShowObserver]; |
| _hideFormAccessoryBarKeyboardShowObserver = [nc addObserverForName:UIKeyboardWillShowNotification |
| object:nil |
| queue:[NSOperationQueue mainQueue] |
| usingBlock:^(NSNotification* notification) { |
| // we can't hide it here because the accessory bar hasn't been created yet, so we delay on the queue |
| [weakSelf performSelector:@selector(formAccessoryBarKeyboardWillShow:) withObject:notification afterDelay:0]; |
| }]; |
| |
| [nc removeObserver:_hideFormAccessoryBarKeyboardHideObserver]; |
| _hideFormAccessoryBarKeyboardHideObserver = [nc addObserverForName:UIKeyboardWillHideNotification |
| object:nil |
| queue:[NSOperationQueue mainQueue] |
| usingBlock:^(NSNotification* notification) { |
| [weakSelf formAccessoryBarKeyboardWillHide:notification]; |
| }]; |
| } else { |
| [nc removeObserver:_hideFormAccessoryBarKeyboardShowObserver]; |
| [nc removeObserver:_hideFormAccessoryBarKeyboardHideObserver]; |
| |
| // if a keyboard is already visible (and the accessorybar was hidden), hide observer will NOT be called, so we observe it once |
| if (self.keyboardIsVisible && _hideFormAccessoryBar) { |
| _hideFormAccessoryBarKeyboardHideObserver = [nc addObserverForName:UIKeyboardWillHideNotification |
| object:nil |
| queue:[NSOperationQueue mainQueue] |
| usingBlock:^(NSNotification* notification) { |
| [weakSelf formAccessoryBarKeyboardWillHide:notification]; |
| [[NSNotificationCenter defaultCenter] removeObserver:_hideFormAccessoryBarKeyboardHideObserver]; |
| }]; |
| } |
| } |
| |
| _hideFormAccessoryBar = ahideFormAccessoryBar; |
| } |
| |
| // ////////////////////////////////////////////////// |
| |
| - (BOOL)shrinkView |
| { |
| return _shrinkView; |
| } |
| |
| - (void)setShrinkView:(BOOL)ashrinkView |
| { |
| NSNotificationCenter* nc = [NSNotificationCenter defaultCenter]; |
| __weak CDVKeyboard* weakSelf = self; |
| |
| if (ashrinkView == _shrinkView) { |
| return; |
| } |
| |
| // No-op on iOS7. It already resizes webview by default, and this plugin is causing layout issues |
| // with fixed position elements. We possibly should attempt to implement shringview = false on iOS7. |
| if (!IsAtLeastiOSVersion(@"7.0")) { |
| if (ashrinkView) { |
| [nc removeObserver:_shrinkViewKeyboardShowObserver]; |
| _shrinkViewKeyboardShowObserver = [nc addObserverForName:UIKeyboardWillShowNotification |
| object:nil |
| queue:[NSOperationQueue mainQueue] |
| usingBlock:^(NSNotification* notification) { |
| [weakSelf performSelector:@selector(shrinkViewKeyboardWillShow:) withObject:notification afterDelay:0]; |
| }]; |
| |
| [nc removeObserver:_shrinkViewKeyboardHideObserver]; |
| _shrinkViewKeyboardHideObserver = [nc addObserverForName:UIKeyboardWillHideNotification |
| object:nil |
| queue:[NSOperationQueue mainQueue] |
| usingBlock:^(NSNotification* notification) { |
| [weakSelf performSelector:@selector(shrinkViewKeyboardWillHide:) withObject:notification afterDelay:0]; |
| }]; |
| } else { |
| [nc removeObserver:_shrinkViewKeyboardShowObserver]; |
| [nc removeObserver:_shrinkViewKeyboardHideObserver]; |
| |
| // if a keyboard is already visible (and keyboard was shrunk), hide observer will NOT be called, so we observe it once |
| if (self.keyboardIsVisible && _shrinkView) { |
| _shrinkViewKeyboardHideObserver = [nc addObserverForName:UIKeyboardWillHideNotification |
| object:nil |
| queue:[NSOperationQueue mainQueue] |
| usingBlock:^(NSNotification* notification) { |
| [weakSelf shrinkViewKeyboardWillHideHelper:notification]; |
| [[NSNotificationCenter defaultCenter] removeObserver:_shrinkViewKeyboardHideObserver]; |
| }]; |
| } |
| } |
| } |
| |
| _shrinkView = ashrinkView; |
| } |
| |
| // ////////////////////////////////////////////////// |
| |
| - (void)formAccessoryBarKeyboardWillShow:(NSNotification*)notif |
| { |
| if (!_hideFormAccessoryBar) { |
| return; |
| } |
| |
| NSArray* windows = [[UIApplication sharedApplication] windows]; |
| |
| for (UIWindow* window in windows) { |
| for (UIView* view in window.subviews) { |
| if ([[view description] hasPrefix:@"<UIPeripheralHostView"]) { |
| for (UIView* peripheralView in view.subviews) { |
| // hides the backdrop (iOS 7) |
| if ([[peripheralView description] hasPrefix:@"<UIKBInputBackdropView"]) { |
| [[peripheralView layer] setOpacity:0.0]; |
| } |
| |
| // hides the accessory bar |
| if ([[peripheralView description] hasPrefix:@"<UIWebFormAccessory"]) { |
| // remove the extra scroll space for the form accessory bar |
| CGRect newFrame = self.webView.scrollView.frame; |
| newFrame.size.height += peripheralView.frame.size.height; |
| self.webView.scrollView.frame = newFrame; |
| |
| _accessoryBarHeight = peripheralView.frame.size.height; |
| |
| // remove the form accessory bar |
| [peripheralView removeFromSuperview]; |
| } |
| // hides the thin grey line used to adorn the bar (iOS 6) |
| if ([[peripheralView description] hasPrefix:@"<UIImageView"]) { |
| [[peripheralView layer] setOpacity:0.0]; |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| - (void)formAccessoryBarKeyboardWillHide:(NSNotification*)notif |
| { |
| // restore the scrollview frame |
| self.webView.scrollView.frame = CGRectMake(0, 0, self.webView.frame.size.width, self.webView.frame.size.height); |
| } |
| |
| // ////////////////////////////////////////////////// |
| |
| - (void)shrinkViewKeyboardWillShow:(NSNotification*)notif |
| { |
| if (!_shrinkView) { |
| return; |
| } |
| _savedWebViewFrame = self.webView.frame; |
| |
| CGRect keyboardFrame = [notif.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue]; |
| keyboardFrame = [self.viewController.view convertRect:keyboardFrame fromView:nil]; |
| |
| CGRect newFrame = _savedWebViewFrame; |
| CGFloat actualKeyboardHeight = (keyboardFrame.size.height - _accessoryBarHeight); |
| newFrame.size.height -= actualKeyboardHeight; |
| |
| self.webView.frame = newFrame; |
| self.webView.scrollView.contentInset = UIEdgeInsetsMake(0, 0, 0, 0); |
| |
| if (self.disableScrollingInShrinkView) { |
| self.webView.scrollView.scrollEnabled = NO; |
| } |
| } |
| |
| - (void)shrinkViewKeyboardWillHide:(NSNotification*)notif |
| { |
| if (!_shrinkView) { |
| return; |
| } |
| [self shrinkViewKeyboardWillHideHelper:notif]; |
| } |
| |
| - (void)shrinkViewKeyboardWillHideHelper:(NSNotification*)notif |
| { |
| self.webView.scrollView.scrollEnabled = YES; |
| |
| CGRect keyboardFrame = [notif.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue]; |
| keyboardFrame = [self.viewController.view convertRect:keyboardFrame fromView:nil]; |
| |
| CGRect newFrame = _savedWebViewFrame; |
| self.webView.scrollView.contentInset = UIEdgeInsetsMake(0, 0, 0, 0); |
| self.webView.frame = newFrame; |
| } |
| |
| // ////////////////////////////////////////////////// |
| |
| - (void)dealloc |
| { |
| // since this is ARC, remove observers only |
| |
| NSNotificationCenter* nc = [NSNotificationCenter defaultCenter]; |
| |
| [nc removeObserver:self name:UIKeyboardWillShowNotification object:nil]; |
| [nc removeObserver:self name:UIKeyboardWillHideNotification object:nil]; |
| } |
| |
| // ////////////////////////////////////////////////// |
| |
| #pragma Plugin interface |
| |
| - (void) shrinkView:(CDVInvokedUrlCommand*)command |
| { |
| id value = [command.arguments objectAtIndex:0]; |
| if (!([value isKindOfClass:[NSNumber class]])) { |
| value = [NSNumber numberWithBool:NO]; |
| } |
| |
| self.shrinkView = [value boolValue]; |
| } |
| |
| - (void) disableScrollingInShrinkView:(CDVInvokedUrlCommand*)command |
| { |
| id value = [command.arguments objectAtIndex:0]; |
| if (!([value isKindOfClass:[NSNumber class]])) { |
| value = [NSNumber numberWithBool:NO]; |
| } |
| |
| self.disableScrollingInShrinkView = [value boolValue]; |
| } |
| |
| - (void) hideFormAccessoryBar:(CDVInvokedUrlCommand*)command |
| { |
| id value = [command.arguments objectAtIndex:0]; |
| if (!([value isKindOfClass:[NSNumber class]])) { |
| value = [NSNumber numberWithBool:NO]; |
| } |
| |
| self.hideFormAccessoryBar = [value boolValue]; |
| } |
| |
| |
| @end |