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Taking out zoom in out logic into a handler
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84 changes: 84 additions & 0 deletions
84
Sources/Brave/Frontend/Browser/PageZoom/PageZoomHandler.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| // Copyright 2023 The Brave Authors. All rights reserved. | ||
| // 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/. | ||
|
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| import Foundation | ||
| import Shared | ||
| import Data | ||
| import Preferences | ||
|
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| class PageZoomHandler: ObservableObject { | ||
|
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| enum ChangeStatus { | ||
| case increment, decrement | ||
| } | ||
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| private weak var webView: BraveWebView? | ||
| let isPrivateBrowsing: Bool | ||
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| static let steps = [0.5, 0.75, 0.85, | ||
| 1.0, 1.15, 1.25, | ||
| 1.50, 1.75, 2.00, | ||
| 2.50, 3.0] | ||
| static let propertyName = "viewScale" | ||
| @Published var currentValue: Double = 1.0 | ||
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| required init(tab: Tab, isPrivateBrowsing: Bool) { | ||
| self.webView = tab.webView | ||
| self.isPrivateBrowsing = isPrivateBrowsing | ||
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| // Private Browsing on Safari iOS always defaults to 100%, and isn't persistently saved. | ||
| if isPrivateBrowsing { | ||
| currentValue = 1.0 | ||
| return | ||
| } | ||
|
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| if let webView = webView { | ||
| // Fetch the current value for zoom | ||
| if let url = webView.url, let domain = Domain.getPersistedDomain(for: url) { | ||
| currentValue = domain.zoom_level?.doubleValue ?? Preferences.General.defaultPageZoomLevel.value | ||
| } else { | ||
| currentValue = webView.value(forKey: Self.propertyName) as? Double ?? Preferences.General.defaultPageZoomLevel.value | ||
| } | ||
| } | ||
| } | ||
|
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| func changeZoomLevel(_ status: ChangeStatus) { | ||
| switch status { | ||
| case .increment: | ||
| guard let index = Self.steps.firstIndex(of: currentValue), | ||
| index + 1 < Self.steps.count else { return } | ||
|
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| currentValue = Self.steps[index + 1] | ||
| case .decrement: | ||
| guard let index = Self.steps.firstIndex(of: currentValue), | ||
| index - 1 >= 0 else { return } | ||
| currentValue = Self.steps[index - 1] | ||
| } | ||
|
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| // Setting the value | ||
| storeChanges() | ||
| } | ||
|
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| func reset() { | ||
| currentValue = Preferences.General.defaultPageZoomLevel.value | ||
| storeChanges() | ||
| } | ||
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| private func storeChanges() { | ||
| guard let webView = webView, | ||
| let url = webView.url else { return } | ||
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| webView.setValue(currentValue, forKey: PageZoomHandler.propertyName) | ||
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| // Do NOT store the changes in the Domain | ||
| if !isPrivateBrowsing { | ||
| let domain = Domain.getPersistedDomain(for: url)?.then { | ||
| $0.zoom_level = currentValue == $0.zoom_level?.doubleValue ? nil : NSNumber(value: currentValue) | ||
| } | ||
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| try? domain?.managedObjectContext?.save() | ||
| } | ||
| } | ||
| } |
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