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CocoaHeads Rennes #17 - TextKit

This repository contains the code samples that have been presented during this session about TextKit, and more specifically dedicated to text layout. It contains two sample applications for iPad:

  • TextKitSimpleLayout illustrates the techniques for basic text layout with TextKit. It presents a two-column layout with a shape-view providing an exclusion path and a Text attachment showing an image in the text layout flow. The columns can be resized by moving the slider; the shape-view can be moved to test the dynamic change of exclusion path.

  • TextKitSubclasses provide examples of TextKit customization through subclassing: a round-shape text container demonstrates how easy it is to create a NSTextContainer subclass; ColoringTextStorage is a simple subclass of NSTextStorage (analog the example provided at WWDC 2013). Note that the Text View with the round text container is fully editable, just as any regular UITextView. TextKitSubclasses also include an example of a custom NSView subclass using directly TextKit to draw rich text on a path (a circle in this case).

Licence

These code samples are provided under the MIT lience.

About

Illustrate the TextKit-Layout speak

Resources

Readme
MIT license
Activity
Custom properties

Stars

7 stars

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5 watching

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1 fork
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, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
 blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
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CocoaHeads Rennes #17 - TextKit
This repository contains the code samples that have been presented during this session about TextKit, and more specifically dedicated to text layout.
It contains two sample applications for iPad:
  • TextKitSimpleLayout illustrates the techniques for basic text layout with TextKit. It presents a two-column layout with a shape-view providing an exclusion path and a Text attachment showing an image in the text layout flow. The columns can be resized by moving the slider; the shape-view can be moved to test the dynamic change of exclusion path.
  • TextKitSubclasses provide examples of TextKit customization through subclassing: a round-shape text container demonstrates how easy it is to create a NSTextContainer subclass; ColoringTextStorage is a simple subclass of NSTextStorage (analog the example provided at WWDC 2013). Note that the Text View with the round text container is fully editable, just as any regular UITextView. TextKitSubclasses also include an example of a custom NSView subclass using directly TextKit to draw rich text on a path (a circle in this case).
Licence
These code samples are provided under the MIT lience.
About
Illustrate the TextKit-Layout speak
Resources
Readme
MIT license
Activity
Custom properties
Stars
7 stars
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5 watching
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1 fork
Report repository
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - CocoaHeads-Rennes/17-TextKit-Layout: Illustrate the TextKit-Layout speak · GitHub
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Repository files navigation
CocoaHeads Rennes #17 - TextKit
This repository contains the code samples that have been presented during this session about TextKit, and more specifically dedicated to text layout.
It contains two sample applications for iPad:
  • TextKitSimpleLayout illustrates the techniques for basic text layout with TextKit. It presents a two-column layout with a shape-view providing an exclusion path and a Text attachment showing an image in the text layout flow. The columns can be resized by moving the slider; the shape-view can be moved to test the dynamic change of exclusion path.
  • TextKitSubclasses provide examples of TextKit customization through subclassing: a round-shape text container demonstrates how easy it is to create a NSTextContainer subclass; ColoringTextStorage is a simple subclass of NSTextStorage (analog the example provided at WWDC 2013). Note that the Text View with the round text container is fully editable, just as any regular UITextView. TextKitSubclasses also include an example of a custom NSView subclass using directly TextKit to draw rich text on a path (a circle in this case).
Licence
These code samples are provided under the MIT lience.
About
Illustrate the TextKit-Layout speak
Resources
Readme
MIT license
Activity
Custom properties
Stars
7 stars
Watchers
5 watching
Forks
1 fork
Report repository
Releases
Packages
Contributors
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
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Repository files navigation
CocoaHeads Rennes #17 - TextKit
This repository contains the code samples that have been presented during this session about TextKit, and more specifically dedicated to text layout.
It contains two sample applications for iPad:
  • TextKitSimpleLayout illustrates the techniques for basic text layout with TextKit. It presents a two-column layout with a shape-view providing an exclusion path and a Text attachment showing an image in the text layout flow. The columns can be resized by moving the slider; the shape-view can be moved to test the dynamic change of exclusion path.
  • TextKitSubclasses provide examples of TextKit customization through subclassing: a round-shape text container demonstrates how easy it is to create a NSTextContainer subclass; ColoringTextStorage is a simple subclass of NSTextStorage (analog the example provided at WWDC 2013). Note that the Text View with the round text container is fully editable, just as any regular UITextView. TextKitSubclasses also include an example of a custom NSView subclass using directly TextKit to draw rich text on a path (a circle in this case).
Licence
These code samples are provided under the MIT lience.
About
Illustrate the TextKit-Layout speak
Resources
Readme
MIT license
Activity
Custom properties
Stars
7 stars
Watchers
5 watching
Forks
1 fork
Report repository
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
GitHub - CocoaHeads-Rennes/17-TextKit-Layout: Illustrate the TextKit-Layout speak · GitHub
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Repository files navigation
CocoaHeads Rennes #17 - TextKit
This repository contains the code samples that have been presented during this session about TextKit, and more specifically dedicated to text layout.
It contains two sample applications for iPad:
  • TextKitSimpleLayout illustrates the techniques for basic text layout with TextKit. It presents a two-column layout with a shape-view providing an exclusion path and a Text attachment showing an image in the text layout flow. The columns can be resized by moving the slider; the shape-view can be moved to test the dynamic change of exclusion path.
  • TextKitSubclasses provide examples of TextKit customization through subclassing: a round-shape text container demonstrates how easy it is to create a NSTextContainer subclass; ColoringTextStorage is a simple subclass of NSTextStorage (analog the example provided at WWDC 2013). Note that the Text View with the round text container is fully editable, just as any regular UITextView. TextKitSubclasses also include an example of a custom NSView subclass using directly TextKit to draw rich text on a path (a circle in this case).
Licence
These code samples are provided under the MIT lience.
About
Illustrate the TextKit-Layout speak
Resources
Readme
MIT license
Activity
Custom properties
Stars
7 stars
Watchers
5 watching
Forks
1 fork
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - CocoaHeads-Rennes/17-TextKit-Layout: Illustrate the TextKit-Layout speak · GitHub
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Repository files navigation
CocoaHeads Rennes #17 - TextKit
This repository contains the code samples that have been presented during this session about TextKit, and more specifically dedicated to text layout.
It contains two sample applications for iPad:
  • TextKitSimpleLayout illustrates the techniques for basic text layout with TextKit. It presents a two-column layout with a shape-view providing an exclusion path and a Text attachment showing an image in the text layout flow. The columns can be resized by moving the slider; the shape-view can be moved to test the dynamic change of exclusion path.
  • TextKitSubclasses provide examples of TextKit customization through subclassing: a round-shape text container demonstrates how easy it is to create a NSTextContainer subclass; ColoringTextStorage is a simple subclass of NSTextStorage (analog the example provided at WWDC 2013). Note that the Text View with the round text container is fully editable, just as any regular UITextView. TextKitSubclasses also include an example of a custom NSView subclass using directly TextKit to draw rich text on a path (a circle in this case).
Licence
These code samples are provided under the MIT lience.
About
Illustrate the TextKit-Layout speak
Resources
Readme
MIT license
Activity
Custom properties
Stars
7 stars
Watchers
5 watching
Forks
1 fork
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - CocoaHeads-Rennes/17-TextKit-Layout: Illustrate the TextKit-Layout speak · GitHub
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Repository files navigation
CocoaHeads Rennes #17 - TextKit
This repository contains the code samples that have been presented during this session about TextKit, and more specifically dedicated to text layout.
It contains two sample applications for iPad:
  • TextKitSimpleLayout illustrates the techniques for basic text layout with TextKit. It presents a two-column layout with a shape-view providing an exclusion path and a Text attachment showing an image in the text layout flow. The columns can be resized by moving the slider; the shape-view can be moved to test the dynamic change of exclusion path.
  • TextKitSubclasses provide examples of TextKit customization through subclassing: a round-shape text container demonstrates how easy it is to create a NSTextContainer subclass; ColoringTextStorage is a simple subclass of NSTextStorage (analog the example provided at WWDC 2013). Note that the Text View with the round text container is fully editable, just as any regular UITextView. TextKitSubclasses also include an example of a custom NSView subclass using directly TextKit to draw rich text on a path (a circle in this case).
Licence
These code samples are provided under the MIT lience.
About
Illustrate the TextKit-Layout speak
Resources
Readme
MIT license
Activity
Custom properties
Stars
7 stars
Watchers
5 watching
Forks
1 fork
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
GitHub - CocoaHeads-Rennes/17-TextKit-Layout: Illustrate the TextKit-Layout speak · GitHub
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Repository files navigation
CocoaHeads Rennes #17 - TextKit
This repository contains the code samples that have been presented during this session about TextKit, and more specifically dedicated to text layout.
It contains two sample applications for iPad:
  • TextKitSimpleLayout illustrates the techniques for basic text layout with TextKit. It presents a two-column layout with a shape-view providing an exclusion path and a Text attachment showing an image in the text layout flow. The columns can be resized by moving the slider; the shape-view can be moved to test the dynamic change of exclusion path.
  • TextKitSubclasses provide examples of TextKit customization through subclassing: a round-shape text container demonstrates how easy it is to create a NSTextContainer subclass; ColoringTextStorage is a simple subclass of NSTextStorage (analog the example provided at WWDC 2013). Note that the Text View with the round text container is fully editable, just as any regular UITextView. TextKitSubclasses also include an example of a custom NSView subclass using directly TextKit to draw rich text on a path (a circle in this case).
Licence
These code samples are provided under the MIT lience.
About
Illustrate the TextKit-Layout speak
Resources
Readme
MIT license
Activity
Custom properties
Stars
7 stars
Watchers
5 watching
Forks
1 fork
Report repository
Releases
Packages
Contributors
Languages