From 3bcc0b99e2d221243c3bcc2a5cc2a7f46c6a6d59 Mon Sep 17 00:00:00 2001
From: Feuerfuchs <git@feuerfuchs.dev>
Date: Wed, 26 Jun 2019 20:16:19 +0200
Subject: New feature: Clickable links in plain text (opt)

---
 js/main.ts | 77 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 74 insertions(+), 3 deletions(-)

(limited to 'js/main.ts')

diff --git a/js/main.ts b/js/main.ts
index 3b2a081..5bbcd97 100644
--- a/js/main.ts
+++ b/js/main.ts
@@ -20,6 +20,10 @@ const settings = new KeyValueStore({
         value: ensureSetting('image-previews', '1') === '1',
         valueRange: [false, true]
     },
+    clickablePlainLinks: {
+        value: ensureSetting('clickable-plain-links', '1') === '1',
+        valueRange: [false, true]
+    },
 });
 
 //
@@ -46,8 +50,13 @@ const settings = new KeyValueStore({
     locationPrefixEl.addEventListener('click', e => {
         e.preventDefault();
 
-        const resp = prompt('Please enter new location: ', '');
-        if ((resp !== null) && (resp !== "")) {
+        let resp = prompt('Please enter new location: ', '');
+        if ((resp !== null) && (resp.trim() !== "")) {
+            resp = resp.trim();
+            if (resp.indexOf('gopher://') === 0) {
+                resp = resp.substring(9);
+            }
+
             window.location.href = window.location.origin + '/' + resp;
         }
 
@@ -93,7 +102,7 @@ const settings = new KeyValueStore({
             contentEl.classList.remove("content--wrap");
         }
 
-        localStorage.setItem('image-previews', value ? '1' : '0');
+        localStorage.setItem('word-wrap', value ? '1' : '0');
         settingWordWrapValueEl.textContent = value ? '[yes]' : '[no]';
     }
 
@@ -105,6 +114,30 @@ const settings = new KeyValueStore({
 
     settingWordWrapCallback(settings.getValue('wordWrap'));
     settings.addCallback('wordWrap', settingWordWrapCallback);
+
+    //
+
+    const clickablePlainLinksEl      = document.getElementsByClassName('setting--clickable-plain-links')[0];
+    const clickablePlainLinksValueEl = clickablePlainLinksEl.getElementsByClassName('setting__value')[0];
+    const clickablePlainLinksCallback = (value: boolean) => {
+        if (value) {
+            generateMarkupForPlainLinks();
+        } else {
+            removeMarkupForPlainLinks();
+        }
+
+        localStorage.setItem('clickable-plain-links', value ? '1' : '0');
+        clickablePlainLinksValueEl.textContent = value ? '[yes]' : '[no]';
+    }
+
+    clickablePlainLinksValueEl.addEventListener('click', e => {
+        e.preventDefault();
+        settings.cycleValue('clickablePlainLinks');
+        return false;
+    });
+
+    clickablePlainLinksCallback(settings.getValue('clickablePlainLinks'));
+    settings.addCallback('clickablePlainLinks', clickablePlainLinksCallback);
 })();
 
 (() => {
@@ -211,3 +244,41 @@ function removeImageThumbnails() {
         }
     }
 }
+
+function generateMarkupForPlainLinks() {
+    if (!document.body.classList.contains('is-plain')) {
+        return;
+    }
+
+    const contentEl = document.getElementsByClassName('content')[0];
+    const urlRegex  = /\b([a-z]*:\/\/[-a-zA-Z0-9@:%._\+~#=]{2,256}\.[a-z]{2,4}\b[-a-zA-Z0-9@:%_\+.~#?&//=]*)\b/g;
+    const mailRegex = /\bmailto:[-a-zA-Z0-9@:%._\+~#=]+@(?:[-a-zA-Z0-9@:%._\+~#=]+\.)+[a-z]{2,4}\b/g;
+
+    contentEl.innerHTML = contentEl.innerHTML.replace(urlRegex, match => {
+        let href: string = match;
+        if (href.indexOf('gopher://') === 0) {
+            href = href.replace(/^gopher:\/\/(.*)$/, location.origin + '/$1');
+        }
+        return `<a href="${href}">${match}</a>`;
+    });
+
+    contentEl.innerHTML = contentEl.innerHTML.replace(mailRegex, match => {
+        return `<a href="${match}">${match}</a>`;
+    });
+}
+
+function removeMarkupForPlainLinks() {
+    if (!document.body.classList.contains('is-plain')) {
+        return;
+    }
+
+    const contentEl = document.getElementsByClassName('content')[0];
+    const anchorEls = contentEl.getElementsByTagName('a');
+    let   i         = anchorEls.length;
+    while (i--) {
+        const anchorEl   = anchorEls[i];
+        const textNodeEl = document.createTextNode(anchorEl.textContent!);
+        
+        contentEl.replaceChild(textNodeEl, anchorEl);
+    }
+}
-- 
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