Matt Cudmore macu
macu
/ isbefore.jquery.js
Created
December 28, 2020 18:47
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| $.fn.isBefore = function(e2) { | |
| // var all = $(context || document).find("*"); | |
| // return all.index(this[0]) < all.index($(sel)); | |
| let e1 = $(this).get(0); | |
| e2 = $(e2).get(0); | |
| let p1 = $(e1).parents(); // returns a jQuery object | |
| let p2 = $(e2).parents(); // ordrered from the immediate parent up | |
| for (var i1 = 0; i1 < p1.length; i1++) { | |
| let i2 = p2.index(p1[i1]); | |
| if (i2 >= 0) { |
macu
/ colour-utils.js
Last active
December 23, 2020 05:57
Functions to convert between RGB and HSL HTML colour strings and invert HSL (can be used to find a high-contrast colour with the same hue): https://codepen.io/macu89/pen/PowjrEQ
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| // Thanks https://css-tricks.com/converting-color-spaces-in-javascript/ | |
| export const rRGB = /^rgb\((\d{1,3}), (\d{1,3}), (\d{1,3})\)$/; | |
| export const rHSL = /^hsl\((\d{1,3}), (\d{1,3})%, (\d{1,3})%\)$/; | |
| export const rHTML = /^#[0-9a-f]{6}$/i; | |
| export function toRgb(input) { | |
| if (input && typeof input === 'object') { | |
| if (input.hsl) { | |
| return hslToRgb(input); |
macu
/ autoscroll.js
Last active
June 27, 2020 04:52
Utility method to scroll the viewport when the mouse approaches the top or bottom edge, for example while dragging items vertically
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| // Call when dragging starts, returns handler. | |
| // Call handler.stop() when dragging stops. | |
| export function startAutoscroll() { | |
| const GUTTER_SIZE = 70; // distance from edge of viewport where scrolling starts | |
| const SCALE_RANGE = 8; // higher value gives potential for faster scrolling | |
| const $window = $(window); | |
| let requestId = null; | |
| let clientY = null; // cursor position within viewport |
macu
/ extract-video-id-from-embed.txt
Last active
March 25, 2020 19:24
Extract video IDs from YouTube and Vimeo embed codes
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| YouTube embed regex: | |
| /<iframe\s+[^>]*?src="(?:(?:https?:)?\/\/)?(?:(?:www|m)\.)?(?:youtube\.com|youtu.be)(?:\/(?:[\w\-]+\?v=|embed\/|v\/)?)([\w\-]+)[^">]*?"[^>]*>[^<]*<\/iframe>/ | |
| Vimeo embed regex: | |
| /<iframe\s+[^>]*?src="(?:(?:https?:)?\/\/)?(?:www\.|player\.)?vimeo.com\/(?:channels\/(?:\w+\/)?|groups\/[^\/]+\/videos\/|album\/\d+\/video\/|video\/|)(\d+)\/?(?:[?]?[^">]*)"[^>]*>[^<]*<\/iframe>/ |
macu
/ jQuery-POST-handle-errors.js
Created
October 29, 2019 13:53
Detect AJAX response error codes using jQuery
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| $.post('/ajax/test', { | |
| field, | |
| }).then(response => { | |
| // Success | |
| }).fail((jqXHR) => { | |
| if (jqXHR.status === 409) { | |
| alert('Conflict'); | |
| } else { | |
| alert('Error code: ' + jqXHR.status); | |
| } |
macu
/ toggle-demo.html
Created
December 8, 2016 15:36
Saves toggle state in localStorage and restores on next page load. Note this does not allow some plugins to calculate positions and dimensions of elements in the hidden area.
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| <a data-toggle=".demo-layout .demo-target" href="#">[-]</a> | |
| <div class="demo-layout"> | |
| <div class="demo-target"> | |
| <p>Content hidden or displayed</p> | |
| </div> | |
| </div> |
macu
/ copy-database-to-vm.sh
Created
October 13, 2016 01:09
Copy database from actual device to VM for testing
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| # Ensure all AVDs are closed, and your Android device is connected. | |
| # To make a backup of the ca.mattcudmore.day2day app: | |
| ~/Library/Android/sdk/platform-tools/adb backup -f backup.ab ca.mattcudmore.day2day | |
| # Convert the backup file to TAR: | |
| dd if=backup.ab bs=1 skip=24 | python -c "import zlib,sys;sys.stdout.write(zlib.decompress(sys.stdin.read()))" > backup.tar | |
| # Extract the TAR to access files. | |
| tar -xvf backup.tar | |
| # Now disconnect Android device and launch AVD where files will be copied to. |
macu
/ MainActivity.java
Last active
September 9, 2015 19:45
Android connect to SPP scanner and read scan data. Socket CHS appears to use proprietary data format; use the official Socket SDK. This code can read scan results from Unitech scanners, but data may be split across multiple reads until a newline. Requires BLUETOOTH permission.
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| package io.macu.sppreader; | |
| import android.app.ProgressDialog; | |
| import android.bluetooth.BluetoothAdapter; | |
| import android.bluetooth.BluetoothDevice; | |
| import android.bluetooth.BluetoothSocket; | |
| import android.os.Bundle; | |
| import android.support.v7.app.AppCompatActivity; | |
| import android.util.Log; | |
| import android.view.View; |
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| <!doctype html> | |
| <html> | |
| <body> | |
| <style> | |
| .drop-area { | |
| display: inline-block; | |
| padding: 1em; | |
| border: thin dotted grey; | |
| border-radius: 1em; |
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| <!doctype html> | |
| <html> | |
| <body> | |
| <textarea rows=4 cols=40></textarea> | |
| <br/> | |
| <button onclick="saveTextarea()">Save text</button> | |
| <br/> | |
| <br/> | |
| <button onclick="save256Bytes()">Save example typed array as binary file</button> |
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