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Merge pull request #5 from iwasrobbed/downview
DownView rendering to close #3
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| <!DOCTYPE html> | ||
| <html> | ||
| <head> | ||
| <meta charset="utf-8"> | ||
| <meta name="viewport" content="width=640"/> | ||
| <link charset="utf-8" href="css/down.min.css" rel="stylesheet"> | ||
| <script charset="utf-8" src="js/highlight.min.js" type="text/javascript"></script> | ||
| <script charset="utf-8" src="js/down.js" type="text/javascript"></script> | ||
| <title></title> | ||
| </head> | ||
| <body> | ||
| DOWN_HTML | ||
| </body> | ||
| </html> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1 @@ | ||
| hljs.initHighlightingOnLoad(); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,30 @@ | ||
| // | ||
| // String+ToHTML.swift | ||
| // Down | ||
| // | ||
| // Created by Rob Phillips on 6/1/16. | ||
| // Copyright © 2016 Glazed Donut, LLC. All rights reserved. | ||
| // | ||
|
|
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| import Foundation | ||
| import libcmark | ||
|
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| extension String { | ||
|
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| /** | ||
| Generates an HTML string from the contents of the string (self), which should contain CommonMark Markdown | ||
| - parameter options: `DownOptions` to modify parsing or rendering, defaulting to `.Default` | ||
| - throws: `DownErrors` depending on the scenario | ||
| - returns: HTML string | ||
| */ | ||
| public func toHTML(options: DownOptions = .Default) throws -> String { | ||
| let ast = try DownASTRenderer.stringToAST(self, options: options) | ||
| let html = try DownHTMLRenderer.astToHTML(ast, options: options) | ||
| cmark_node_free(ast) | ||
| return html | ||
| } | ||
|
|
||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| // | ||
| // DownView.swift | ||
| // Down | ||
| // | ||
| // Created by Rob Phillips on 6/1/16. | ||
| // Copyright © 2016 Glazed Donut, LLC. All rights reserved. | ||
| // | ||
|
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| import WebKit | ||
|
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| // MARK: - Public API | ||
|
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| public class DownView: WKWebView { | ||
|
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| /** | ||
| Initializes a web view with the results of rendering a CommonMark Markdown string | ||
| - parameter frame: The frame size of the web view | ||
| - parameter markdownString: A string containing CommonMark Markdown | ||
| - parameter openLinksInBrowser: Whether or not to open links using an external browser | ||
| - returns: An instance of Self | ||
| */ | ||
| @warn_unused_result | ||
| public init(frame: CGRect, markdownString: String, openLinksInBrowser: Bool = true) throws { | ||
| super.init(frame: frame, configuration: WKWebViewConfiguration()) | ||
|
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| if openLinksInBrowser { navigationDelegate = self } | ||
| try loadHTMLView(markdownString) | ||
| } | ||
|
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| // MARK: - Private Properties | ||
|
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| private let bundle: NSBundle = { | ||
| let bundle = NSBundle(forClass: DownView.self) | ||
| let url = bundle.URLForResource("DownView", withExtension: "bundle")! | ||
| return NSBundle(URL: url)! | ||
| }() | ||
|
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| private lazy var baseURL: NSURL = { | ||
| return self.bundle.URLForResource("index", withExtension: "html")! | ||
| }() | ||
| } | ||
|
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| // MARK: - Private API | ||
|
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| private extension DownView { | ||
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| func loadHTMLView(markdownString: String) throws { | ||
| let htmlString = try markdownString.toHTML() | ||
| let pageHTMLString = try htmlFromTemplate(htmlString) | ||
| loadHTMLString(pageHTMLString, baseURL: baseURL) | ||
| } | ||
|
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| func htmlFromTemplate(htmlString: String) throws -> String { | ||
| let template = try NSString(contentsOfURL: baseURL, encoding: NSUTF8StringEncoding) | ||
| return template.stringByReplacingOccurrencesOfString("DOWN_HTML", withString: htmlString) | ||
| } | ||
|
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| } | ||
|
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| // MARK: - WKNavigationDelegate | ||
|
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| extension DownView: WKNavigationDelegate { | ||
|
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| public func webView(webView: WKWebView, decidePolicyForNavigationAction navigationAction: WKNavigationAction, decisionHandler: (WKNavigationActionPolicy) -> Void) { | ||
| guard let url = navigationAction.request.URL else { return } | ||
|
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| switch navigationAction.navigationType { | ||
| case .LinkActivated: | ||
| decisionHandler(.Cancel) | ||
| UIApplication.sharedApplication().openURL(url) | ||
| default: | ||
| decisionHandler(.Allow) | ||
| } | ||
| } | ||
|
|
||
| } |
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