mirror of https://github.com/oxen-io/session-ios
Michael Kirk
8 years ago
parent
a58f1f385c
commit
56fe9d057d
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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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import MediaPlayer
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@objc
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public protocol AttachmentApprovalViewControllerDelegate: class {
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func didApproveAttachment()
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func didCancelAttachment()
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}
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@objc
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public class AttachmentApprovalViewController: OWSViewController {
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let TAG = "[AttachmentApprovalViewController]"
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weak var delegate: AttachmentApprovalViewControllerDelegate?
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// MARK: Properties
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let attachment: SignalAttachment
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let mediaMessageView: MediaMessageView
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// MARK: Initializers
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@available(*, unavailable, message:"use attachment: constructor instead.")
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required public init?(coder aDecoder: NSCoder) {
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fatalError("unimplemented")
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}
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required public init(attachment: SignalAttachment, delegate: AttachmentApprovalViewControllerDelegate) {
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assert(!attachment.hasError)
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self.attachment = attachment
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self.delegate = delegate
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self.mediaMessageView = MediaMessageView(attachment: attachment, mode: .large)
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super.init(nibName: nil, bundle: nil)
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}
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// MARK: View Lifecycle
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override public func viewDidLoad() {
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super.viewDidLoad()
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view.backgroundColor = UIColor.white
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createViews()
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self.navigationItem.title = dialogTitle()
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}
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private func dialogTitle() -> String {
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guard let filename = mediaMessageView.formattedFileName() else {
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return NSLocalizedString("ATTACHMENT_APPROVAL_DIALOG_TITLE",
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comment: "Title for the 'attachment approval' dialog.")
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}
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return filename
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}
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override public func viewWillAppear(_ animated: Bool) {
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super.viewWillAppear(animated)
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mediaMessageView.viewWillAppear(animated)
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}
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override public func viewWillDisappear(_ animated: Bool) {
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super.viewWillDisappear(animated)
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mediaMessageView.viewWillDisappear(animated)
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}
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// MARK: - Create Views
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private func createViews() {
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let previewTopMargin: CGFloat = 30
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let previewHMargin: CGFloat = 20
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self.view.addSubview(mediaMessageView)
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mediaMessageView.autoPinWidthToSuperview(withMargin:previewHMargin)
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mediaMessageView.autoPin(toTopLayoutGuideOf: self, withInset:previewTopMargin)
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createButtonRow(mediaMessageView:mediaMessageView)
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}
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private func wrapViewsInVerticalStack(subviews: [UIView]) -> UIView {
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assert(subviews.count > 0)
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let stackView = UIView()
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var lastView: UIView?
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for subview in subviews {
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stackView.addSubview(subview)
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subview.autoHCenterInSuperview()
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if lastView == nil {
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subview.autoPinEdge(toSuperviewEdge:.top)
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} else {
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subview.autoPinEdge(.top, to:.bottom, of:lastView!, withOffset:10)
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}
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lastView = subview
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}
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lastView?.autoPinEdge(toSuperviewEdge:.bottom)
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return stackView
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}
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private func createButtonRow(mediaMessageView: UIView) {
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let buttonTopMargin = ScaleFromIPhone5To7Plus(30, 40)
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let buttonBottomMargin = ScaleFromIPhone5To7Plus(25, 40)
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let buttonHSpacing = ScaleFromIPhone5To7Plus(20, 30)
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let buttonRow = UIView()
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self.view.addSubview(buttonRow)
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buttonRow.autoPinWidthToSuperview()
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buttonRow.autoPinEdge(toSuperviewEdge:.bottom, withInset:buttonBottomMargin)
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buttonRow.autoPinEdge(.top, to:.bottom, of:mediaMessageView, withOffset:buttonTopMargin)
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// We use this invisible subview to ensure that the buttons are centered
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// horizontally.
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let buttonSpacer = UIView()
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buttonRow.addSubview(buttonSpacer)
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// Vertical positioning of this view doesn't matter.
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buttonSpacer.autoPinEdge(toSuperviewEdge:.top)
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buttonSpacer.autoSetDimension(.width, toSize:buttonHSpacing)
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buttonSpacer.autoHCenterInSuperview()
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let cancelButton = createButton(title: CommonStrings.cancelButton,
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color : UIColor.ows_destructiveRed(),
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action: #selector(cancelPressed))
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buttonRow.addSubview(cancelButton)
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cancelButton.autoPinEdge(toSuperviewEdge:.top)
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cancelButton.autoPinEdge(toSuperviewEdge:.bottom)
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cancelButton.autoPinEdge(.right, to:.left, of:buttonSpacer)
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let sendButton = createButton(title: NSLocalizedString("ATTACHMENT_APPROVAL_SEND_BUTTON",
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comment: "Label for 'send' button in the 'attachment approval' dialog."),
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color : UIColor(rgbHex:0x2ecc71),
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action: #selector(sendPressed))
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buttonRow.addSubview(sendButton)
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sendButton.autoPinEdge(toSuperviewEdge:.top)
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sendButton.autoPinEdge(toSuperviewEdge:.bottom)
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sendButton.autoPinEdge(.left, to:.right, of:buttonSpacer)
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}
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private func createButton(title: String, color: UIColor, action: Selector) -> UIView {
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let buttonWidth = ScaleFromIPhone5To7Plus(110, 140)
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let buttonHeight = ScaleFromIPhone5To7Plus(35, 45)
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return OWSFlatButton.button(title:title,
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titleColor:UIColor.white,
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backgroundColor:color,
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width:buttonWidth,
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height:buttonHeight,
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target:target,
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selector:action)
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}
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// MARK: - Event Handlers
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func cancelPressed(sender: UIButton) {
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self.delegate?.didCancelAttachment()
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}
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func sendPressed(sender: UIButton) {
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self.delegate?.didApproveAttachment()
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}
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}
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