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BrowserViewController.swift
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/* 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 Foundation
import Photos
import UIKit
import WebKit
import Shared
import Storage
import SnapKit
import XCGLogger
import Alamofire
import Account
import ReadingList
import MobileCoreServices
import WebImage
import SwiftyJSON
private let log = Logger.browserLogger
private let KVOLoading = "loading"
private let KVOEstimatedProgress = "estimatedProgress"
private let KVOURL = "URL"
private let KVOCanGoBack = "canGoBack"
private let KVOCanGoForward = "canGoForward"
private let KVOContentSize = "contentSize"
private let ActionSheetTitleMaxLength = 120
private struct BrowserViewControllerUX {
fileprivate static let BackgroundColor = UIConstants.AppBackgroundColor
fileprivate static let ShowHeaderTapAreaHeight: CGFloat = 32
fileprivate static let BookmarkStarAnimationDuration: Double = 0.5
fileprivate static let BookmarkStarAnimationOffset: CGFloat = 80
}
class BrowserViewController: UIViewController {
var homePanelController: HomePanelViewController?
var webViewContainer: UIView!
var menuViewController: MenuViewController?
var urlBar: URLBarView!
var clipboardBarDisplayHandler: ClipboardBarDisplayHandler!
var readerModeBar: ReaderModeBarView?
var readerModeCache: ReaderModeCache
fileprivate var statusBarOverlay: UIView!
fileprivate(set) var toolbar: TabToolbar?
fileprivate var searchController: SearchViewController?
fileprivate var screenshotHelper: ScreenshotHelper!
fileprivate var homePanelIsInline = false
fileprivate var searchLoader: SearchLoader!
fileprivate let snackBars = UIView()
fileprivate let webViewContainerToolbar = UIView()
fileprivate var findInPageBar: FindInPageBar?
fileprivate let findInPageContainer = UIView()
fileprivate lazy var mailtoLinkHandler: MailtoLinkHandler = MailtoLinkHandler()
lazy fileprivate var customSearchEngineButton: UIButton = {
let searchButton = UIButton()
searchButton.setImage(UIImage(named: "AddSearch")?.withRenderingMode(.alwaysTemplate), for: UIControlState())
searchButton.addTarget(self, action: #selector(BrowserViewController.addCustomSearchEngineForFocusedElement), for: .touchUpInside)
searchButton.accessibilityIdentifier = "BrowserViewController.customSearchEngineButton"
return searchButton
}()
fileprivate var customSearchBarButton: UIBarButtonItem?
// popover rotation handling
fileprivate var displayedPopoverController: UIViewController?
fileprivate var updateDisplayedPopoverProperties: (() -> Void)?
fileprivate var openInHelper: OpenInHelper?
// location label actions
fileprivate var pasteGoAction: AccessibleAction!
fileprivate var pasteAction: AccessibleAction!
fileprivate var copyAddressAction: AccessibleAction!
fileprivate weak var tabTrayController: TabTrayController!
fileprivate let profile: Profile
let tabManager: TabManager
// These views wrap the urlbar and toolbar to provide background effects on them
var header: BlurWrapper!
var headerBackdrop: UIView!
var footer: UIView!
var footerBackdrop: UIView!
fileprivate var footerBackground: BlurWrapper?
fileprivate var topTouchArea: UIButton!
let urlBarTopTabsContainer = UIView(frame: CGRect.zero)
// Backdrop used for displaying greyed background for private tabs
var webViewContainerBackdrop: UIView!
fileprivate var scrollController = TabScrollingController()
fileprivate var keyboardState: KeyboardState?
var didRemoveAllTabs: Bool = false
var pendingToast: ButtonToast? // A toast that might be waiting for BVC to appear before displaying
let WhiteListedUrls = ["\\/\\/itunes\\.apple\\.com\\/"]
// Tracking navigation items to record history types.
// TODO: weak references?
var ignoredNavigation = Set<WKNavigation>()
var typedNavigation = [WKNavigation: VisitType]()
var navigationToolbar: TabToolbarProtocol {
return toolbar ?? urlBar
}
var topTabsViewController: TopTabsViewController?
let topTabsContainer = UIView(frame: CGRect.zero)
init(profile: Profile, tabManager: TabManager) {
self.profile = profile
self.tabManager = tabManager
self.readerModeCache = DiskReaderModeCache.sharedInstance
super.init(nibName: nil, bundle: nil)
didInit()
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override var supportedInterfaceOrientations: UIInterfaceOrientationMask {
if UIDevice.current.userInterfaceIdiom == .phone {
return UIInterfaceOrientationMask.allButUpsideDown
} else {
return UIInterfaceOrientationMask.all
}
}
override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
super.viewWillTransition(to: size, with: coordinator)
displayedPopoverController?.dismiss(animated: true) {
self.displayedPopoverController = nil
}
coordinator.animate(alongsideTransition: { context in
self.scrollController.updateMinimumZoom()
self.topTabsViewController?.scrollToCurrentTab(false, centerCell: false)
if let popover = self.displayedPopoverController {
self.updateDisplayedPopoverProperties?()
self.present(popover, animated: true, completion: nil)
}
}, completion: { _ in
self.scrollController.setMinimumZoom()
})
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
log.debug("BVC received memory warning")
}
fileprivate func didInit() {
screenshotHelper = ScreenshotHelper(controller: self)
tabManager.addDelegate(self)
tabManager.addNavigationDelegate(self)
}
override var preferredStatusBarStyle: UIStatusBarStyle {
return UIStatusBarStyle.lightContent
}
func shouldShowFooterForTraitCollection(_ previousTraitCollection: UITraitCollection) -> Bool {
return previousTraitCollection.verticalSizeClass != .compact &&
previousTraitCollection.horizontalSizeClass != .regular
}
func shouldShowTopTabsForTraitCollection(_ newTraitCollection: UITraitCollection) -> Bool {
guard AppConstants.MOZ_TOP_TABS else {
return false
}
return newTraitCollection.verticalSizeClass == .regular &&
newTraitCollection.horizontalSizeClass == .regular
}
func toggleSnackBarVisibility(show: Bool) {
if show {
UIView.animate(withDuration: 0.1, animations: { self.snackBars.isHidden = false })
} else {
snackBars.isHidden = true
}
}
fileprivate func updateToolbarStateForTraitCollection(_ newCollection: UITraitCollection, withTransitionCoordinator coordinator: UIViewControllerTransitionCoordinator? = nil) {
let showToolbar = shouldShowFooterForTraitCollection(newCollection)
let showTopTabs = shouldShowTopTabsForTraitCollection(newCollection)
if UI_USER_INTERFACE_IDIOM() == .pad,
let mvc = menuViewController, showToolbar != (toolbar != nil) {
// Hide the menu, and then re-open it so that the menu is always the correct one for the given traits
mvc.dismiss(animated: true, completion: nil)
coordinator?.animate(alongsideTransition: nil, completion: { _ in
self.tabToolbarDidPressMenu(self.navigationToolbar, button: self.navigationToolbar.menuButton)
})
}
urlBar.topTabsIsShowing = showTopTabs
urlBar.setShowToolbar(!showToolbar)
toolbar?.removeFromSuperview()
toolbar?.tabToolbarDelegate = nil
footerBackground?.removeFromSuperview()
footerBackground = nil
toolbar = nil
if showToolbar {
toolbar = TabToolbar()
toolbar?.tabToolbarDelegate = self
footerBackground = BlurWrapper(view: toolbar!)
footerBackground?.translatesAutoresizingMaskIntoConstraints = false
// Need to reset the proper blur style
if let selectedTab = tabManager.selectedTab, selectedTab.isPrivate {
footerBackground!.blurStyle = .dark
toolbar?.applyTheme(Theme.PrivateMode)
}
footer.addSubview(footerBackground!)
}
if showTopTabs {
if topTabsViewController == nil {
let topTabsViewController = TopTabsViewController(tabManager: tabManager)
topTabsViewController.delegate = self
addChildViewController(topTabsViewController)
topTabsViewController.view.frame = topTabsContainer.frame
topTabsContainer.addSubview(topTabsViewController.view)
topTabsViewController.view.snp.makeConstraints { make in
make.edges.equalTo(topTabsContainer)
make.height.equalTo(TopTabsUX.TopTabsViewHeight)
}
self.topTabsViewController = topTabsViewController
}
topTabsContainer.snp.updateConstraints { make in
make.height.equalTo(TopTabsUX.TopTabsViewHeight)
}
header.disableBlur = true
} else {
topTabsContainer.snp.updateConstraints { make in
make.height.equalTo(0)
}
topTabsViewController?.view.removeFromSuperview()
topTabsViewController?.removeFromParentViewController()
topTabsViewController = nil
header.disableBlur = false
}
view.setNeedsUpdateConstraints()
if let home = homePanelController {
home.view.setNeedsUpdateConstraints()
}
if let tab = tabManager.selectedTab,
let webView = tab.webView {
updateURLBarDisplayURL(tab)
navigationToolbar.updateBackStatus(webView.canGoBack)
navigationToolbar.updateForwardStatus(webView.canGoForward)
navigationToolbar.updateReloadStatus(tab.loading)
}
}
override func willTransition(to newCollection: UITraitCollection, with coordinator: UIViewControllerTransitionCoordinator) {
super.willTransition(to: newCollection, with: coordinator)
// During split screen launching on iPad, this callback gets fired before viewDidLoad gets a chance to
// set things up. Make sure to only update the toolbar state if the view is ready for it.
if isViewLoaded {
updateToolbarStateForTraitCollection(newCollection, withTransitionCoordinator: coordinator)
}
displayedPopoverController?.dismiss(animated: true, completion: nil)
coordinator.animate(alongsideTransition: { context in
self.scrollController.showToolbars(animated: false)
}, completion: nil)
}
func SELappDidEnterBackgroundNotification() {
displayedPopoverController?.dismiss(animated: false) {
self.displayedPopoverController = nil
}
}
func SELtappedTopArea() {
scrollController.showToolbars(animated: true)
}
func SELappWillResignActiveNotification() {
// Dismiss any popovers that might be visible
displayedPopoverController?.dismiss(animated: false) {
self.displayedPopoverController = nil
}
// Dismiss menu if presenting
menuViewController?.dismiss(animated: true, completion: nil)
// If we are displying a private tab, hide any elements in the tab that we wouldn't want shown
// when the app is in the home switcher
guard let privateTab = tabManager.selectedTab, privateTab.isPrivate else {
return
}
webViewContainerBackdrop.alpha = 1
webViewContainer.alpha = 0
urlBar.locationContainer.alpha = 0
topTabsViewController?.switchForegroundStatus(isInForeground: false)
presentedViewController?.popoverPresentationController?.containerView?.alpha = 0
presentedViewController?.view.alpha = 0
}
func SELappDidBecomeActiveNotification() {
// Re-show any components that might have been hidden because they were being displayed
// as part of a private mode tab
UIView.animate(withDuration: 0.2, delay: 0, options: UIViewAnimationOptions(), animations: {
self.webViewContainer.alpha = 1
self.urlBar.locationContainer.alpha = 1
self.topTabsViewController?.switchForegroundStatus(isInForeground: true)
self.presentedViewController?.popoverPresentationController?.containerView?.alpha = 1
self.presentedViewController?.view.alpha = 1
self.view.backgroundColor = UIColor.clear
}, completion: { _ in
self.webViewContainerBackdrop.alpha = 0
})
// Re-show toolbar which might have been hidden during scrolling (prior to app moving into the background)
scrollController.showToolbars(animated: false)
}
deinit {
NotificationCenter.default.removeObserver(self, name: NSNotification.Name(rawValue: BookmarkStatusChangedNotification), object: nil)
NotificationCenter.default.removeObserver(self, name: NSNotification.Name.UIApplicationWillResignActive, object: nil)
NotificationCenter.default.removeObserver(self, name: NSNotification.Name.UIApplicationWillEnterForeground, object: nil)
NotificationCenter.default.removeObserver(self, name: NSNotification.Name.UIApplicationDidEnterBackground, object: nil)
}
override func viewDidLoad() {
log.debug("BVC viewDidLoad…")
super.viewDidLoad()
log.debug("BVC super viewDidLoad called.")
NotificationCenter.default.addObserver(self, selector: #selector(BrowserViewController.SELBookmarkStatusDidChange(_:)), name: NSNotification.Name(rawValue: BookmarkStatusChangedNotification), object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(BrowserViewController.SELappWillResignActiveNotification), name: NSNotification.Name.UIApplicationWillResignActive, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(BrowserViewController.SELappDidBecomeActiveNotification), name: NSNotification.Name.UIApplicationDidBecomeActive, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(BrowserViewController.SELappDidEnterBackgroundNotification), name: NSNotification.Name.UIApplicationDidEnterBackground, object: nil)
KeyboardHelper.defaultHelper.addDelegate(self)
log.debug("BVC adding footer and header…")
footerBackdrop = UIView()
footerBackdrop.backgroundColor = UIColor.white
view.addSubview(footerBackdrop)
headerBackdrop = UIView()
headerBackdrop.backgroundColor = UIColor.white
view.addSubview(headerBackdrop)
log.debug("BVC setting up webViewContainer…")
webViewContainerBackdrop = UIView()
webViewContainerBackdrop.backgroundColor = UIColor.gray
webViewContainerBackdrop.alpha = 0
view.addSubview(webViewContainerBackdrop)
webViewContainer = UIView()
webViewContainer.addSubview(webViewContainerToolbar)
view.addSubview(webViewContainer)
log.debug("BVC setting up status bar…")
// Temporary work around for covering the non-clipped web view content
statusBarOverlay = UIView()
statusBarOverlay.backgroundColor = BrowserViewControllerUX.BackgroundColor
view.addSubview(statusBarOverlay)
log.debug("BVC setting up top touch area…")
topTouchArea = UIButton()
topTouchArea.isAccessibilityElement = false
topTouchArea.addTarget(self, action: #selector(BrowserViewController.SELtappedTopArea), for: UIControlEvents.touchUpInside)
view.addSubview(topTouchArea)
log.debug("BVC setting up URL bar…")
// Setup the URL bar, wrapped in a view to get transparency effect
urlBar = URLBarView()
urlBar.translatesAutoresizingMaskIntoConstraints = false
urlBar.delegate = self
urlBar.tabToolbarDelegate = self
header = BlurWrapper(view: urlBarTopTabsContainer)
urlBarTopTabsContainer.addSubview(urlBar)
urlBarTopTabsContainer.addSubview(topTabsContainer)
view.addSubview(header)
// UIAccessibilityCustomAction subclass holding an AccessibleAction instance does not work, thus unable to generate AccessibleActions and UIAccessibilityCustomActions "on-demand" and need to make them "persistent" e.g. by being stored in BVC
pasteGoAction = AccessibleAction(name: NSLocalizedString("Paste & Go", comment: "Paste the URL into the location bar and visit"), handler: { () -> Bool in
if let pasteboardContents = UIPasteboard.general.string {
self.urlBar(self.urlBar, didSubmitText: pasteboardContents)
return true
}
return false
})
pasteAction = AccessibleAction(name: NSLocalizedString("Paste", comment: "Paste the URL into the location bar"), handler: { () -> Bool in
if let pasteboardContents = UIPasteboard.general.string {
// Enter overlay mode and fire the text entered callback to make the search controller appear.
self.urlBar.enterOverlayMode(pasteboardContents, pasted: true)
self.urlBar(self.urlBar, didEnterText: pasteboardContents)
return true
}
return false
})
copyAddressAction = AccessibleAction(name: NSLocalizedString("Copy Address", comment: "Copy the URL from the location bar"), handler: { () -> Bool in
if let url = self.urlBar.currentURL {
UIPasteboard.general.url = url as URL
}
return true
})
log.debug("BVC setting up search loader…")
searchLoader = SearchLoader(profile: profile, urlBar: urlBar)
footer = UIView()
self.view.addSubview(footer)
self.view.addSubview(snackBars)
snackBars.backgroundColor = UIColor.clear
self.view.addSubview(findInPageContainer)
clipboardBarDisplayHandler = ClipboardBarDisplayHandler(prefs: profile.prefs)
clipboardBarDisplayHandler.delegate = self
scrollController.urlBar = urlBar
scrollController.header = header
scrollController.footer = footer
scrollController.snackBars = snackBars
scrollController.webViewContainerToolbar = webViewContainerToolbar
log.debug("BVC updating toolbar state…")
self.updateToolbarStateForTraitCollection(self.traitCollection)
log.debug("BVC setting up constraints…")
setupConstraints()
log.debug("BVC done.")
}
fileprivate func setupConstraints() {
topTabsContainer.snp.makeConstraints { make in
make.leading.trailing.equalTo(self.header)
make.top.equalTo(urlBarTopTabsContainer)
}
urlBar.snp.makeConstraints { make in
make.leading.trailing.bottom.equalTo(urlBarTopTabsContainer)
make.height.equalTo(UIConstants.ToolbarHeight)
make.top.equalTo(topTabsContainer.snp.bottom)
}
header.snp.makeConstraints { make in
scrollController.headerTopConstraint = make.top.equalTo(self.topLayoutGuide.snp.bottom).constraint
make.left.right.equalTo(self.view)
}
headerBackdrop.snp.makeConstraints { make in
make.edges.equalTo(self.header)
}
webViewContainerBackdrop.snp.makeConstraints { make in
make.edges.equalTo(webViewContainer)
}
webViewContainerToolbar.snp.makeConstraints { make in
make.left.right.top.equalTo(webViewContainer)
make.height.equalTo(0)
}
}
override func viewDidLayoutSubviews() {
log.debug("BVC viewDidLayoutSubviews…")
super.viewDidLayoutSubviews()
statusBarOverlay.snp.remakeConstraints { make in
make.top.left.right.equalTo(self.view)
make.height.equalTo(self.topLayoutGuide.length)
}
self.appDidUpdateState(getCurrentAppState())
log.debug("BVC done.")
}
func loadQueuedTabs() {
log.debug("Loading queued tabs in the background.")
// Chain off of a trivial deferred in order to run on the background queue.
succeed().upon() { res in
self.dequeueQueuedTabs()
}
}
fileprivate func dequeueQueuedTabs() {
assert(!Thread.current.isMainThread, "This must be called in the background.")
self.profile.queue.getQueuedTabs() >>== { cursor in
// This assumes that the DB returns rows in some kind of sane order.
// It does in practice, so WFM.
log.debug("Queue. Count: \(cursor.count).")
if cursor.count <= 0 {
return
}
let urls = cursor.flatMap { $0?.url.asURL }
if !urls.isEmpty {
DispatchQueue.main.async {
self.tabManager.addTabsForURLs(urls, zombie: false)
}
}
// Clear *after* making an attempt to open. We're making a bet that
// it's better to run the risk of perhaps opening twice on a crash,
// rather than losing data.
self.profile.queue.clearQueuedTabs()
}
}
override func viewWillAppear(_ animated: Bool) {
log.debug("BVC viewWillAppear.")
super.viewWillAppear(animated)
log.debug("BVC super.viewWillAppear done.")
// On iPhone, if we are about to show the On-Boarding, blank out the tab so that it does
// not flash before we present. This change of alpha also participates in the animation when
// the intro view is dismissed.
if UIDevice.current.userInterfaceIdiom == .phone {
self.view.alpha = (profile.prefs.intForKey(IntroViewControllerSeenProfileKey) != nil) ? 1.0 : 0.0
}
if PLCrashReporter.shared().hasPendingCrashReport() {
PLCrashReporter.shared().purgePendingCrashReport()
showRestoreTabsAlert()
} else {
log.debug("Restoring tabs.")
tabManager.restoreTabs()
log.debug("Done restoring tabs.")
}
log.debug("Updating tab count.")
updateTabCountUsingTabManager(tabManager, animated: false)
clipboardBarDisplayHandler.checkIfShouldDisplayBar()
log.debug("BVC done.")
NotificationCenter.default.addObserver(self,
selector: #selector(BrowserViewController.openSettings),
name: NSNotification.Name(rawValue: NotificationStatusNotificationTapped),
object: nil)
}
fileprivate func showRestoreTabsAlert() {
guard shouldRestoreTabs() else {
self.tabManager.addTabAndSelect()
return
}
let alert = UIAlertController.restoreTabsAlert(
okayCallback: { _ in
self.tabManager.restoreTabs()
self.updateTabCountUsingTabManager(self.tabManager, animated: false)
},
noCallback: { _ in
self.tabManager.addTabAndSelect()
self.updateTabCountUsingTabManager(self.tabManager, animated: false)
}
)
self.present(alert, animated: true, completion: nil)
}
fileprivate func shouldRestoreTabs() -> Bool {
guard let tabsToRestore = TabManager.tabsToRestore() else { return false }
let onlyNoHistoryTabs = !tabsToRestore.every {
if $0.sessionData?.urls.count ?? 0 > 1 {
if let url = $0.sessionData?.urls.first {
return !url.isAboutHomeURL
}
}
return false
}
return !onlyNoHistoryTabs && !DebugSettingsBundleOptions.skipSessionRestore
}
override func viewDidAppear(_ animated: Bool) {
log.debug("BVC viewDidAppear.")
presentIntroViewController()
log.debug("BVC intro presented.")
self.webViewContainerToolbar.isHidden = false
screenshotHelper.viewIsVisible = true
log.debug("BVC taking pending screenshots….")
screenshotHelper.takePendingScreenshots(tabManager.tabs)
log.debug("BVC done taking screenshots.")
log.debug("BVC calling super.viewDidAppear.")
super.viewDidAppear(animated)
log.debug("BVC done.")
if shouldShowWhatsNewTab() {
if let whatsNewURL = SupportUtils.URLForTopic("new-ios") {
self.openURLInNewTab(whatsNewURL, isPrivileged: false)
profile.prefs.setString(AppInfo.appVersion, forKey: LatestAppVersionProfileKey)
}
}
if let toast = self.pendingToast {
self.pendingToast = nil
show(buttonToast: toast, afterWaiting: ButtonToastUX.ToastDelay)
}
showQueuedAlertIfAvailable()
}
fileprivate func shouldShowWhatsNewTab() -> Bool {
guard let latestMajorAppVersion = profile.prefs.stringForKey(LatestAppVersionProfileKey)?.components(separatedBy: ".").first else {
return DeviceInfo.hasConnectivity()
}
return latestMajorAppVersion != AppInfo.majorAppVersion && DeviceInfo.hasConnectivity()
}
fileprivate func showQueuedAlertIfAvailable() {
if let queuedAlertInfo = tabManager.selectedTab?.dequeueJavascriptAlertPrompt() {
let alertController = queuedAlertInfo.alertController()
alertController.delegate = self
present(alertController, animated: true, completion: nil)
}
}
override func viewWillDisappear(_ animated: Bool) {
screenshotHelper.viewIsVisible = false
super.viewWillDisappear(animated)
}
override func viewDidDisappear(_ animated: Bool) {
super.viewDidDisappear(animated)
NotificationCenter.default.removeObserver(self, name: NSNotification.Name(rawValue: NotificationStatusNotificationTapped), object: nil)
}
func resetBrowserChrome() {
// animate and reset transform for tab chrome
urlBar.updateAlphaForSubviews(1)
footer.alpha = 1
[header,
footer,
readerModeBar,
footerBackdrop,
headerBackdrop].forEach { view in
view?.transform = CGAffineTransform.identity
}
}
override func updateViewConstraints() {
super.updateViewConstraints()
topTouchArea.snp.remakeConstraints { make in
make.top.left.right.equalTo(self.view)
make.height.equalTo(BrowserViewControllerUX.ShowHeaderTapAreaHeight)
}
readerModeBar?.snp.remakeConstraints { make in
make.top.equalTo(self.header.snp.bottom)
make.height.equalTo(UIConstants.ToolbarHeight)
make.leading.trailing.equalTo(self.view)
}
webViewContainer.snp.remakeConstraints { make in
make.left.right.equalTo(self.view)
if let readerModeBarBottom = readerModeBar?.snp.bottom {
make.top.equalTo(readerModeBarBottom)
} else {
make.top.equalTo(self.header.snp.bottom)
}
let findInPageHeight = (findInPageBar == nil) ? 0 : UIConstants.ToolbarHeight
if let toolbar = self.toolbar {
make.bottom.equalTo(toolbar.snp.top).offset(-findInPageHeight)
} else {
make.bottom.equalTo(self.view).offset(-findInPageHeight)
}
}
// Setup the bottom toolbar
toolbar?.snp.remakeConstraints { make in
make.edges.equalTo(self.footerBackground!)
make.height.equalTo(UIConstants.ToolbarHeight)
}
footer.snp.remakeConstraints { make in
scrollController.footerBottomConstraint = make.bottom.equalTo(self.view.snp.bottom).constraint
make.top.equalTo(self.snackBars.snp.top)
make.leading.trailing.equalTo(self.view)
}
footerBackdrop.snp.remakeConstraints { make in
make.edges.equalTo(self.footer)
}
updateSnackBarConstraints()
footerBackground?.snp.remakeConstraints { make in
make.bottom.left.right.equalTo(self.footer)
make.height.equalTo(UIConstants.ToolbarHeight)
}
urlBar.setNeedsUpdateConstraints()
// Remake constraints even if we're already showing the home controller.
// The home controller may change sizes if we tap the URL bar while on about:home.
homePanelController?.view.snp.remakeConstraints { make in
make.top.equalTo(self.urlBar.snp.bottom)
make.left.right.equalTo(self.view)
if self.homePanelIsInline {
make.bottom.equalTo(self.toolbar?.snp.top ?? self.view.snp.bottom)
} else {
make.bottom.equalTo(self.view.snp.bottom)
}
}
findInPageContainer.snp.remakeConstraints { make in
make.left.right.equalTo(self.view)
if let keyboardHeight = keyboardState?.intersectionHeightForView(self.view), keyboardHeight > 0 {
make.bottom.equalTo(self.view).offset(-keyboardHeight)
} else if let toolbar = self.toolbar {
make.bottom.equalTo(toolbar.snp.top)
} else {
make.bottom.equalTo(self.view)
}
}
}
fileprivate func showHomePanelController(inline: Bool) {
log.debug("BVC showHomePanelController.")
homePanelIsInline = inline
if homePanelController == nil {
let homePanelController = HomePanelViewController()
homePanelController.profile = profile
homePanelController.delegate = self
homePanelController.appStateDelegate = self
homePanelController.url = tabManager.selectedTab?.url?.displayURL
homePanelController.view.alpha = 0
self.homePanelController = homePanelController
addChildViewController(homePanelController)
view.addSubview(homePanelController.view)
homePanelController.didMove(toParentViewController: self)
}
guard let homePanelController = self.homePanelController else {
assertionFailure("homePanelController is still nil after assignment.")
return
}
let panelNumber = tabManager.selectedTab?.url?.fragment
// splitting this out to see if we can get better crash reports when this has a problem
var newSelectedButtonIndex = 0
if let numberArray = panelNumber?.components(separatedBy: "=") {
if let last = numberArray.last, let lastInt = Int(last) {
newSelectedButtonIndex = lastInt
}
}
homePanelController.selectedPanel = HomePanelType(rawValue: newSelectedButtonIndex)
homePanelController.isPrivateMode = tabManager.selectedTab?.isPrivate ?? false
// We have to run this animation, even if the view is already showing because there may be a hide animation running
// and we want to be sure to override its results.
UIView.animate(withDuration: 0.2, animations: { () -> Void in
homePanelController.view.alpha = 1
}, completion: { finished in
if finished {
self.webViewContainer.accessibilityElementsHidden = true
UIAccessibilityPostNotification(UIAccessibilityScreenChangedNotification, nil)
}
})
view.setNeedsUpdateConstraints()
log.debug("BVC done with showHomePanelController.")
}
fileprivate func hideHomePanelController() {
if let controller = homePanelController {
self.homePanelController = nil
UIView.animate(withDuration: 0.2, delay: 0, options: .beginFromCurrentState, animations: { () -> Void in
controller.view.alpha = 0
}, completion: { _ in
controller.willMove(toParentViewController: nil)
controller.view.removeFromSuperview()
controller.removeFromParentViewController()
self.webViewContainer.accessibilityElementsHidden = false
UIAccessibilityPostNotification(UIAccessibilityScreenChangedNotification, nil)
// Refresh the reading view toolbar since the article record may have changed
if let readerMode = self.tabManager.selectedTab?.getHelper(name: ReaderMode.name()) as? ReaderMode, readerMode.state == .active {
self.showReaderModeBar(animated: false)
}
})
}
}
fileprivate func updateInContentHomePanel(_ url: URL?) {
if !urlBar.inOverlayMode {
if let url = url, url.isAboutHomeURL {
showHomePanelController(inline: true)
} else {
hideHomePanelController()
}
}
}
fileprivate func showSearchController() {
if searchController != nil {
return
}
let isPrivate = tabManager.selectedTab?.isPrivate ?? false
searchController = SearchViewController(isPrivate: isPrivate)
searchController!.searchEngines = profile.searchEngines
searchController!.searchDelegate = self
searchController!.profile = self.profile
searchLoader.addListener(searchController!)
addChildViewController(searchController!)
view.addSubview(searchController!.view)
searchController!.view.snp.makeConstraints { make in
make.top.equalTo(self.urlBar.snp.bottom)
make.left.right.bottom.equalTo(self.view)
return
}
homePanelController?.view?.isHidden = true
searchController!.didMove(toParentViewController: self)
}
fileprivate func hideSearchController() {
if let searchController = searchController {
searchController.willMove(toParentViewController: nil)
searchController.view.removeFromSuperview()
searchController.removeFromParentViewController()
self.searchController = nil
homePanelController?.view?.isHidden = false
}
}
fileprivate func finishEditingAndSubmit(_ url: URL, visitType: VisitType) {
urlBar.currentURL = url
urlBar.leaveOverlayMode()
guard let tab = tabManager.selectedTab else {
return
}
if let webView = tab.webView {
resetSpoofedUserAgentIfRequired(webView, newURL: url)
}
if let nav = tab.loadRequest(PrivilegedRequest(url: url) as URLRequest) {
self.recordNavigationInTab(tab, navigation: nav, visitType: visitType)
}
}
func addBookmark(_ tabState: TabState) {
guard let url = tabState.url else { return }
let absoluteString = url.absoluteString
let shareItem = ShareItem(url: absoluteString, title: tabState.title, favicon: tabState.favicon)
profile.bookmarks.shareItem(shareItem)
var userData = [QuickActions.TabURLKey: shareItem.url]
if let title = shareItem.title {
userData[QuickActions.TabTitleKey] = title
}
QuickActions.sharedInstance.addDynamicApplicationShortcutItemOfType(.openLastBookmark,
withUserData: userData,
toApplication: UIApplication.shared)
if let tab = tabManager.getTabForURL(url) {
tab.isBookmarked = true
}
}
fileprivate func animateBookmarkStar() {
let offset: CGFloat
let button: UIButton!
if let toolbar: TabToolbar = self.toolbar {
offset = BrowserViewControllerUX.BookmarkStarAnimationOffset * -1
button = toolbar.bookmarkButton
} else {
offset = BrowserViewControllerUX.BookmarkStarAnimationOffset
button = self.urlBar.bookmarkButton
}
JumpAndSpinAnimator.animateFromView(button.imageView ?? button, offset: offset, completion: nil)
}
fileprivate func removeBookmark(_ tabState: TabState) {
guard let url = tabState.url else { return }
let absoluteString = url.absoluteString
profile.bookmarks.modelFactory >>== {
$0.removeByURL(absoluteString)
.uponQueue(DispatchQueue.main) { res in
if res.isSuccess {
if let tab = self.tabManager.getTabForURL(url) {
tab.isBookmarked = false
}
}
}
}
}
func SELBookmarkStatusDidChange(_ notification: Notification) {
if let bookmark = notification.object as? BookmarkItem {
if bookmark.url == urlBar.currentURL?.absoluteString {
if let userInfo = notification.userInfo as? Dictionary<String, Bool> {
if userInfo["added"] != nil {
if let tab = self.tabManager.getTabForURL(urlBar.currentURL!) {
tab.isBookmarked = false
}
}
}
}
}
}
override func accessibilityPerformEscape() -> Bool {
if urlBar.inOverlayMode {
urlBar.SELdidClickCancel()
return true
} else if let selectedTab = tabManager.selectedTab, selectedTab.canGoBack {
selectedTab.goBack()
return true
}
return false
}
override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey: Any]?, context: UnsafeMutableRawPointer?) {
let webView = object as! WKWebView
guard let path = keyPath else { assertionFailure("Unhandled KVO key: \(keyPath)"); return }
switch path {
case KVOEstimatedProgress:
guard webView == tabManager.selectedTab?.webView,
let progress = change?[NSKeyValueChangeKey.newKey] as? Float else { break }
urlBar.updateProgressBar(progress)
case KVOLoading:
guard let loading = change?[NSKeyValueChangeKey.newKey] as? Bool else { break }
if webView == tabManager.selectedTab?.webView {
navigationToolbar.updateReloadStatus(loading)
}
if !loading {
runScriptsOnWebView(webView)
}
case KVOURL:
guard let tab = tabManager[webView] else { break }
// To prevent spoofing, only change the URL immediately if the new URL is on
// the same origin as the current URL. Otherwise, do nothing and wait for
// didCommitNavigation to confirm the page load.
if tab.url?.origin == webView.url?.origin {
tab.url = webView.url
if tab === tabManager.selectedTab && !tab.restoring {
updateUIForReaderHomeStateForTab(tab)
}
}
case KVOCanGoBack:
guard webView == tabManager.selectedTab?.webView,
let canGoBack = change?[NSKeyValueChangeKey.newKey] as? Bool else { break }
navigationToolbar.updateBackStatus(canGoBack)
case KVOCanGoForward:
guard webView == tabManager.selectedTab?.webView,
let canGoForward = change?[NSKeyValueChangeKey.newKey] as? Bool else { break }
navigationToolbar.updateForwardStatus(canGoForward)
default:
assertionFailure("Unhandled KVO key: \(keyPath)")
}
}
fileprivate func runScriptsOnWebView(_ webView: WKWebView) {
webView.evaluateJavaScript("__firefox__.favicons.getFavicons()", completionHandler: nil)
if AppConstants.MOZ_CONTENT_METADATA_PARSING {
webView.evaluateJavaScript("__firefox__.metadata.extractMetadata()", completionHandler: nil)
}
}
fileprivate func updateUIForReaderHomeStateForTab(_ tab: Tab) {
updateURLBarDisplayURL(tab)
scrollController.showToolbars(animated: false)
if let url = tab.url {
if url.isReaderModeURL {
showReaderModeBar(animated: false)
NotificationCenter.default.addObserver(self, selector: #selector(BrowserViewController.SELDynamicFontChanged(_:)), name: NotificationDynamicFontChanged, object: nil)
} else {
hideReaderModeBar(animated: false)
NotificationCenter.default.removeObserver(self, name: NotificationDynamicFontChanged, object: nil)
}