mirror of https://github.com/oxen-io/session-ios
Matthew Chen
8 years ago
parent
c95ff44ea4
commit
5be2014ec7
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//
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// Copyright (c) 2017 Open Whisper Systems. All rights reserved.
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//
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import Foundation
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@objc class OWSFlatButton: UIView {
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let TAG = "[OWSFlatButton]"
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private var button: UIButton?
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private var pressedBlock : (() -> Void)?
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private var upColor: UIColor?
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private var downColor: UIColor?
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init() {
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AssertIsOnMainThread()
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super.init(frame:CGRect.zero)
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createContent()
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}
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@available(*, unavailable, message:"use default constructor instead.")
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required init?(coder aDecoder: NSCoder) {
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super.init(coder: aDecoder)
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owsFail("\(self.TAG) invalid constructor")
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}
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private func createContent() {
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let button = UIButton(type:.custom)
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self.button = button
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self.addSubview(button)
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button.addTarget(self, action:#selector(buttonPressed), for:.touchUpInside)
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button.autoPinWidthToSuperview()
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button.autoPinHeightToSuperview()
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}
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public class func button(title: String,
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font: UIFont,
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titleColor: UIColor,
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backgroundColor: UIColor,
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width: CGFloat,
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height: CGFloat,
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target:Any,
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selector: Selector) -> OWSFlatButton {
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let button = OWSFlatButton()
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button.setTitle(title:title,
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font: font,
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titleColor: titleColor )
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button.setBackgroundColors(backgroundColor)
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button.useDefaultCornerRadius()
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button.setSize(width:width, height:height)
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button.addTarget(target:target, selector:selector)
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return button
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}
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public class func button(title: String,
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titleColor: UIColor,
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backgroundColor: UIColor,
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width: CGFloat,
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height: CGFloat,
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target:Any,
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selector: Selector) -> OWSFlatButton {
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return OWSFlatButton.button(title:title,
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font:fontForHeight(height),
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titleColor:titleColor,
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backgroundColor:backgroundColor,
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width:width,
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height:height,
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target:target,
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selector:selector)
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}
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public class func button(title: String,
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font: UIFont,
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titleColor: UIColor,
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backgroundColor: UIColor,
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target:Any,
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selector: Selector) -> OWSFlatButton {
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let button = OWSFlatButton()
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button.setTitle(title:title,
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font: font,
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titleColor: titleColor )
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button.setBackgroundColors(backgroundColor)
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button.useDefaultCornerRadius()
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button.addTarget(target:target, selector:selector)
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return button
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}
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public class func fontForHeight(_ height: CGFloat) -> UIFont {
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let fontPointSize = round(height * 0.45)
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return UIFont.ows_mediumFont(withSize:fontPointSize)!
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}
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// MARK: Methods
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public func setTitle(title: String, font: UIFont,
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titleColor: UIColor ) {
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guard let button = self.button else {
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owsFail("Missing button")
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return
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}
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button.setTitle(title, for: .normal)
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button.setTitleColor(titleColor, for: .normal)
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button.titleLabel!.font = font
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}
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public func setBackgroundColors(upColor: UIColor,
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downColor: UIColor ) {
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guard let button = self.button else {
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owsFail("Missing button")
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return
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}
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button.setBackgroundImage(UIImage(color:upColor), for: .normal)
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button.setBackgroundImage(UIImage(color:downColor), for: .highlighted)
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}
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public func setBackgroundColors(_ backgroundColor: UIColor ) {
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setBackgroundColors(upColor: backgroundColor,
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downColor: backgroundColor.withAlphaComponent(0.7) )
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}
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public func setSize(width: CGFloat, height: CGFloat) {
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guard let button = self.button else {
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owsFail("Missing button")
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return
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}
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button.autoSetDimension(.width, toSize:width)
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button.autoSetDimension(.height, toSize:height)
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}
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public func useDefaultCornerRadius() {
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guard let button = self.button else {
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owsFail("Missing button")
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return
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}
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button.layer.cornerRadius = ScaleFromIPhone5To7Plus(4, 5)
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button.clipsToBounds = true
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}
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public func setEnabled(_ isEnabled: Bool) {
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guard let button = self.button else {
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owsFail("Missing button")
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return
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}
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button.isEnabled = isEnabled
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}
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public func addTarget(target:Any,
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selector: Selector) {
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guard let button = self.button else {
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owsFail("Missing button")
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return
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}
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button.addTarget(target, action:selector, for:.touchUpInside)
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}
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public func setPressedBlock(_ pressedBlock: @escaping () -> Void) {
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guard self.pressedBlock == nil else {
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owsFail("Button already has pressed block.")
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return
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}
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self.pressedBlock = pressedBlock
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}
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internal func buttonPressed() {
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guard let pressedBlock = pressedBlock else {
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return
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}
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pressedBlock()
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}
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}
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