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// -*- Mode: ObjC; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
//
// This file is part of the LibreOffice project.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
#import "MLOFinder.h"
#import "MLOToolbarButton.h"
#import "MLOButton.h"
#import "MLOMainViewController_Friend.h"
#import "MLOGestureEngine_Impl.h"
#import "MLORenderManager.h"
#import "MLOSubView.h"
#import "MLOResourceImage.h"
#import "mlo_uno.h"
@interface MLOFinder ()
@property MLOSubView * blackBox;
@property UILabel * label;
@property UITextField * textField;
@property NSString * lastSearched;
@property NSDate * findTime;
@property MLOButton * leftButton,* rightButton;
@property NSInteger selectionCount,selectedIndex;
@property MLOMainViewController * mainViewController;
@end
static const NSTimeInterval
NAVIGATION_BUTTON_FADE_DURATION = 1.0f,
FIND_DELAY = 1.0,
FIND_INVOCATION=FIND_DELAY+0.01;
static const CGFloat
FADE_DURATION = 0.5f,
FADE_IN_TARGET = 1.0f,
FADE_OUT_TARGET = 0.0f,
TEXT_AREA_WIDTH = 150.0f,
SPACING_FROM_FIND_TOOLBAR_BUTTON=50.0f,
BLACK_BOX_CORNER_RADIUS=15.0f,
BLACK_BOX_INNER_PADDING_X = 10.0f,
BLACK_BOX_INNER_PADDING_Y = 10.0f,
TEXT_AREA_TO_NAVIAGATION_BUTTONS_SPACING = 5.0f,
LABEL_HEIGHT = 18.0f,
LABEL_TO_INPUT_FIELD_PADDING=8.0f,
INPUT_FIELD_HEIGHT = 20.0f,
BLACK_BOX_INNER_HEIGHT =LABEL_HEIGHT + LABEL_TO_INPUT_FIELD_PADDING + INPUT_FIELD_HEIGHT,
BLACK_BOX_HEIGHT=2*BLACK_BOX_INNER_PADDING_Y + BLACK_BOX_INNER_HEIGHT;
@implementation MLOFinder
-(id)initWithToolbarButton:(MLOToolbarButton *) findButton{
self = [super init];
if(self){
self.selectedIndex = -1;
self.selectionCount = -1;
MLOResourceImage * leftButtonImage = [MLOResourceImage left];
MLOResourceImage * rightButtonImage =[MLOResourceImage right];
CGFloat leftButtonWidth =leftButtonImage.image.size.width;
CGFloat rightButtonWidth = rightButtonImage.image.size.width;
CGRect findButtonFrame = findButton.frame;
CGFloat xOrigin = findButtonFrame.origin.x + findButtonFrame.size.width + SPACING_FROM_FIND_TOOLBAR_BUTTON;
CGFloat yOrigin = findButtonFrame.origin.y;
CGFloat leftButtonXOrigin = xOrigin + BLACK_BOX_INNER_PADDING_X;
CGFloat textAreaXOrigin = leftButtonXOrigin +leftButtonWidth + TEXT_AREA_TO_NAVIAGATION_BUTTONS_SPACING;
CGFloat textAreaYOrigin = yOrigin +BLACK_BOX_INNER_PADDING_Y;
CGFloat rightButtonXOrigin = textAreaXOrigin + TEXT_AREA_WIDTH + TEXT_AREA_TO_NAVIAGATION_BUTTONS_SPACING;
[self addBlackBoxXOrigin: xOrigin
yOrigin: yOrigin
width: leftButtonWidth +
rightButtonWidth +
(TEXT_AREA_TO_NAVIAGATION_BUTTONS_SPACING + BLACK_BOX_INNER_PADDING_X)*2 +
TEXT_AREA_WIDTH ];
[self addLabelXOrigin:textAreaXOrigin yOrigin:textAreaYOrigin];
[self addTextFieldXOrigin:textAreaXOrigin yOrigin:textAreaYOrigin];
self.leftButton =
[self addButtonXOrigin:leftButtonXOrigin
yOrigin:textAreaYOrigin
image:leftButtonImage
selector:@selector(onTapLeft)
name:@"left (previous)"];
self.rightButton =
[self addButtonXOrigin:rightButtonXOrigin
yOrigin:textAreaYOrigin
image:rightButtonImage
selector:@selector(onTapRight)
name:@"right (next)"];
self.lastSearched = @"";
self.findTime = [NSDate date];
}
return self;
}
-(void) onTapLeft{
[self onTap:MARK_PREVIOUS];
}
-(void) onTapRight{
[self onTap:MARK_NEXT];
}
-(void) onTap:(MLOFindSelectionType) type{
self.selectedIndex = mlo_find(_lastSearched, type);
[self updateLabel];
}
-(void)updateLabel{
CGFloat navigationAlpha;
if(_selectionCount>0){
self.label.text = [NSString stringWithFormat: @"Find (%d of %d)",_selectedIndex + 1,_selectionCount];
navigationAlpha = 1.0f;
}else{
self.label.text = @"Find";
navigationAlpha = 0.0f;
}
[self.mainViewController.gestureEngine.renderer renderNow];
if(_leftButton.alpha != navigationAlpha){
[UIView animateWithDuration:NAVIGATION_BUTTON_FADE_DURATION animations:^{
_leftButton.alpha = navigationAlpha;
_rightButton.alpha = navigationAlpha;
}];
}
}
-(MLOButton *) addButtonXOrigin:(CGFloat) xOrigin yOrigin:(CGFloat) yOrigin image:(MLOResourceImage *) image selector:(SEL) selector name:(NSString *) buttonName{
MLOButton * button = [MLOButton buttonWithImage:image];
CGFloat height = image.image.size.height;
if(height < BLACK_BOX_INNER_HEIGHT){
yOrigin += (BLACK_BOX_INNER_HEIGHT - height)/2.0f;
}
button.frame = CGRectMake(xOrigin,yOrigin,image.image.size.width,height);
button.alpha = 0.0f;
[button addTarget:self action:selector];
NSLog(@"Created the navigation button %@",buttonName);
return button;
}
-(void)addBlackBoxXOrigin:(CGFloat) xOrigin yOrigin:(CGFloat)yOrigin width:(CGFloat) width{
self.blackBox =
[[MLOSubView alloc]
initWithFrame: CGRectMake(xOrigin,
yOrigin,
width,
BLACK_BOX_HEIGHT)
color: [UIColor blackColor]
cornerRadius: BLACK_BOX_CORNER_RADIUS
alpha: 0.0f];
NSLog(@"Created finder blackbox");
}
-(void) addLabelXOrigin:(CGFloat) xOrigin yOrigin:(CGFloat) yOrigin{
self.label = [[UILabel alloc] initWithFrame:CGRectMake(xOrigin,
yOrigin,
TEXT_AREA_WIDTH,
LABEL_HEIGHT)];
_label.textColor=[UIColor whiteColor];
_label.backgroundColor = [UIColor clearColor];
_label.alpha=0.0f;
[self updateLabel];
}
-(void) addTextFieldXOrigin:(CGFloat) xOrigin yOrigin:(CGFloat) yOrigin{
self.textField = [[UITextField alloc] initWithFrame:CGRectMake(xOrigin,
yOrigin+LABEL_HEIGHT +LABEL_TO_INPUT_FIELD_PADDING,
TEXT_AREA_WIDTH,
INPUT_FIELD_HEIGHT)];
_textField.text =@"";
_textField.textColor = [UIColor blackColor];
_textField.backgroundColor = [UIColor whiteColor];
_textField.alpha = 0.0f;
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(onTextChanged)
name:UITextFieldTextDidChangeNotification
object:_textField];
}
-(void)show{
[self fadeTo:FADE_IN_TARGET];
[_textField becomeFirstResponder];
}
-(void)hide{
[self fadeTo:FADE_OUT_TARGET];
[_textField resignFirstResponder];
}
-(void)fadeTo:(CGFloat) alphaTarget{
if(_blackBox.alpha !=alphaTarget){
BOOL isFadeNavigationButton = (_selectionCount > 0) || (alphaTarget == 0.0f);
[UIView animateWithDuration:FADE_DURATION animations:^{
_blackBox.alpha = alphaTarget;
_label.alpha = alphaTarget;
_textField.alpha = alphaTarget;
if(isFadeNavigationButton){
_leftButton.alpha = alphaTarget;
_rightButton.alpha = alphaTarget;
}
}];
}
}
-(void)addToMainViewController:(MLOMainViewController *)mainViewController{
[mainViewController.canvas addSubview:_blackBox];
[mainViewController.canvas addSubview:_label];
[mainViewController.canvas addSubview:_textField];
[mainViewController.canvas addSubview:_leftButton];
[mainViewController.canvas addSubview:_rightButton];
self.mainViewController = mainViewController;
}
- (void)onTextChanged{
self.findTime = [NSDate dateWithTimeIntervalSinceNow:FIND_DELAY];
[self performSelector:@selector(invokeFind) withObject:nil afterDelay:FIND_INVOCATION];
}
-(void) invokeFind{
if(![[_findTime laterDate:[NSDate date]] isEqualToDate:_findTime]){
NSInteger trimmedLength = [_textField.text stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceCharacterSet]].length;
if( (_textField.text.length > 0) &&
(trimmedLength>0) &&
![_textField.text isEqualToString:_lastSearched]){
self.lastSearched = [_textField.text copy];
self.selectionCount = mlo_find(_lastSearched, MARK_FIRST);
self.selectedIndex = 0;
}else if(trimmedLength==0){
self.lastSearched =@"";
self.selectionCount = -1;
self.selectedIndex = -1;
}
[self updateLabel];
}
}
@end
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