3dd13

# gem "prawn", "0.8.4"
# Sometime there is no enough space for the last table row when it reaches the end of page

Prawn::Document.generate("text_group_overflow_question.pdf") do |pdf|
  add_page_break_if_overflow(pdf) do |pdf|
    # generating table here
    # ...
  end
end

jcsrb

function get_avatar_from_service(service, userid, size) {
    // this return the url that redirects to the according user image/avatar/profile picture
    // implemented services: google profiles, facebook, gravatar, twitter, tumblr, default fallback
    // for google   use get_avatar_from_service('google', profile-name or user-id , size-in-px )
    // for facebook use get_avatar_from_service('facebook', vanity url or user-id , size-in-px or size-as-word )
    // for gravatar use get_avatar_from_service('gravatar', md5 hash email@adress, size-in-px )
    // for twitter  use get_avatar_from_service('twitter', username, size-in-px or size-as-word )
    // for tumblr   use get_avatar_from_service('tumblr', blog-url, size-in-px )
    // everything else will go to the fallback
    // google and gravatar scale the avatar to any site, others will guided to the next best version

dergachev

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

JonathanHindi

/* Handle any link start with http or https using PhoneGap (Cordova) inAppBrowser
 * Options you can set data-in-app-browser html attribute to one of the
 * following options: 
 * _self - opens in the Cordova WebView if url is in the white-list, else it opens in the InAppBrowser 
 * _blank - always open in the InAppBrowser 
 * _system - always open in the system web browse
 */

$(document).on('click', 'a[href^=http], a[href^=https]', function(e){

DerZyklop

function rotateBase64Image90Degree(base64data) {
  var canvas = document.getElementById("c");
  var ctx = canvas.getContext("2d");
  var image = new Image();

  image.src = base64data;
  image.onload = function() {
    canvas.width = image.height;
    canvas.height = image.width;
    ctx.rotate(90 * Math.PI / 180);

rmosolgo

# This is a full-blown offset-based pagination system modelled after GraphQL-Ruby's
# built-in connections. It has a few different elements:
#
# - `::Page`, a plain ol' Ruby class for modeling _pages_ of things.
#   This class handles applying pagination arguments to lists (Arrays and AR::Relations)
#   and provides metadata about pagination. (Similar to `will_paginate`.)
# - `Schema::BasePage` is a generic GraphQL-Ruby object type. It's never used directly,
#   but it can generate subclasses which wrap _specific_ object types in the schema.
# - `Schema::BaseObject.page_type` is a convenience method for generating page types
#   from your object types. You could leave this out and make subclasses with plain ol'