159 lines
4.0 KiB
Swift
159 lines
4.0 KiB
Swift
//
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// DetailViewController.swift
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// Evergreen
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//
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// Created by Brent Simmons on 7/26/15.
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// Copyright © 2015 Ranchero Software, LLC. All rights reserved.
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//
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import Foundation
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import WebKit
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import RSCore
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import Data
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class DetailViewController: NSViewController, WKNavigationDelegate, WKUIDelegate {
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var webview: WKWebView!
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var article: Article? {
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didSet {
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reloadHTML()
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}
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}
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private struct MessageName {
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static let mouseDidEnter = "mouseDidEnter"
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static let mouseDidExit = "mouseDidExit"
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}
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override func viewDidLoad() {
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NotificationCenter.default.addObserver(self, selector: #selector(timelineSelectionDidChange(_:)), name: .TimelineSelectionDidChange, object: nil)
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let preferences = WKPreferences()
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preferences.minimumFontSize = 12.0
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preferences.javaScriptCanOpenWindowsAutomatically = false
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preferences.javaEnabled = false
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preferences.javaScriptEnabled = true
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preferences.plugInsEnabled = false
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let configuration = WKWebViewConfiguration()
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configuration.preferences = preferences
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let userContentController = WKUserContentController()
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userContentController.add(self, name: MessageName.mouseDidEnter)
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userContentController.add(self, name: MessageName.mouseDidExit)
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configuration.userContentController = userContentController
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webview = WKWebView(frame: self.view.bounds, configuration: configuration)
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webview.uiDelegate = self
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webview.navigationDelegate = self
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webview.translatesAutoresizingMaskIntoConstraints = false
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let boxView = self.view as! DetailBox
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boxView.contentView = webview
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boxView.rs_addFullSizeConstraints(forSubview: webview)
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boxView.viewController = self
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}
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// MARK: Notifications
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@objc func timelineSelectionDidChange(_ note: Notification) {
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let timelineView = note.appInfo?.view
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if timelineView?.window === self.view.window {
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article = note.appInfo?.article
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}
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}
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func viewWillStartLiveResize() {
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webview.evaluateJavaScript("document.body.style.overflow = 'hidden';", completionHandler: nil)
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}
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func viewDidEndLiveResize() {
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webview.evaluateJavaScript("document.body.style.overflow = 'visible';", completionHandler: nil)
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}
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// MARK: Private
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private func reloadHTML() {
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if let article = article {
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let articleRenderer = ArticleRenderer(article: article, style: ArticleStylesManager.shared.currentStyle)
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webview.loadHTMLString(articleRenderer.html, baseURL: articleRenderer.baseURL)
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}
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else {
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webview.loadHTMLString("", baseURL: nil)
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}
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}
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// MARK: WKNavigationDelegate
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public func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {
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if navigationAction.navigationType == .linkActivated {
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if let url = navigationAction.request.url {
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Browser.open(url.absoluteString)
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}
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decisionHandler(.cancel)
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return
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}
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decisionHandler(.allow)
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}
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}
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extension DetailViewController: WKScriptMessageHandler {
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func userContentController(_ userContentController: WKUserContentController, didReceive message: WKScriptMessage) {
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if message.name == MessageName.mouseDidEnter, let link = message.body as? String {
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mouseDidEnter(link)
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}
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else if message.name == MessageName.mouseDidExit, let link = message.body as? String{
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mouseDidExit(link)
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}
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}
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private func mouseDidEnter(_ link: String) {
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if link.isEmpty {
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return
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}
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let appInfo = AppInfo()
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appInfo.view = self.view
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appInfo.url = link
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NotificationCenter.default.post(name: .MouseDidEnterLink, object: self, userInfo: appInfo.userInfo)
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}
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private func mouseDidExit(_ link: String) {
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let appInfo = AppInfo()
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appInfo.view = self.view
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appInfo.url = link
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NotificationCenter.default.post(name: .MouseDidExitLink, object: self, userInfo: appInfo.userInfo)
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}
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}
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class DetailBox: NSBox {
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weak var viewController: DetailViewController?
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override func viewWillStartLiveResize() {
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viewController?.viewWillStartLiveResize()
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}
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override func viewDidEndLiveResize() {
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viewController?.viewDidEndLiveResize()
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}
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}
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