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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
import Foundation
struct textSearched {
var text: String
var isCurrentSearch: Bool
init(text: String, isCurrentSearch: Bool) {
self.text = text
self.isCurrentSearch = isCurrentSearch
}
init?(dictionary: [String: Any]) {
guard let text = dictionary["text"], let isCurrentSearch = dictionary["isCurrentSearch"] else { return nil }
self.init(text: text as! String, isCurrentSearch: isCurrentSearch as! Bool)
}
}
class SearchHistoryUtils {
static var isFromURLBar = false
static var isNavigating = false
static var isReload = false
private static var currentStack = [textSearched]()
static func pushSearchToStack(with searchedText: String) {
// Check whether the lastSearch is the current search. If not, remove subsequent searches
if let lastSearch = currentStack.last, !lastSearch.isCurrentSearch {
for index in 0..<currentStack.count where currentStack[index].isCurrentSearch {
currentStack.removeSubrange(index+1..<currentStack.count)
break
}
}
for index in 0..<currentStack.count {
currentStack[index].isCurrentSearch = false
}
currentStack.append(textSearched(text: searchedText, isCurrentSearch: true))
}
static func pullSearchFromStack() -> String? {
for search in currentStack where search.isCurrentSearch {
return search.text
}
return nil
}
static func goForward() {
isNavigating = true
for index in 0..<currentStack.count {
if currentStack[index].isCurrentSearch && index + 1 < currentStack.count {
currentStack[index + 1].isCurrentSearch = true
currentStack[index].isCurrentSearch = false
break
}
}
}
static func goBack() {
isNavigating = true
for index in 0..<currentStack.count {
if currentStack[index].isCurrentSearch && index - 1 >= 0 {
currentStack[index - 1].isCurrentSearch = true
currentStack[index].isCurrentSearch = false
break
}
}
}
}