Merge remote-tracking branch 'origin/fileuploads'

.gitignore

@@ -18,6 +18,7 @@ coverage/
 .idea/
 
 /public/assets
+/public/system
 
 # damn vim backup files
 *~

Gemfile

@@ -29,6 +29,8 @@ gem 'font-kit-rails'
 gem 'nprogress-rails'
 gem 'font-awesome-rails', '~> 4.2.0.0'
 gem 'rails-assets-growl'
+gem "paperclip", "~> 4.2"
+gem 'delayed_paperclip'
 
 gem 'ruby-progressbar'
 

Gemfile.lock

@@ -67,7 +67,11 @@ GEM
       xpath (~> 2.0)
     celluloid (0.16.0)
       timers (~> 4.0.0)
+    climate_control (0.0.3)
+      activesupport (>= 3.0)
     cliver (0.3.2)
+    cocaine (0.5.5)
+      climate_control (>= 0.0.3, < 1.0)
     coffee-rails (4.1.0)
       coffee-script (>= 2.2.0)
       railties (>= 4.0.0, < 5.0)
@@ -80,6 +84,8 @@ GEM
     crass (1.0.1)
     daemons (1.1.9)
     database_cleaner (1.3.0)
+    delayed_paperclip (2.9.0)
+      paperclip (>= 3.3)
     devise (3.4.1)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
@@ -167,6 +173,11 @@ GEM
       multi_json (~> 1.3)
       omniauth-oauth (~> 1.0)
     orm_adapter (0.5.0)
+    paperclip (4.2.1)
+      activemodel (>= 3.0.0)
+      activesupport (>= 3.0.0)
+      cocaine (~> 0.5.3)
+      mime-types
     pg (0.17.1)
     poltergeist (1.5.1)
       capybara (~> 2.1)
@@ -339,6 +350,7 @@ DEPENDENCIES
   capybara
   coffee-rails (~> 4.1.0)
   database_cleaner
+  delayed_paperclip
   devise
   factory_girl_rails
   faker
@@ -354,6 +366,7 @@ DEPENDENCIES
   nprogress-rails
   omniauth
   omniauth-twitter
+  paperclip (~> 4.2)
   pg
   poltergeist
   questiongenerator!

app/assets/javascripts/application.js.erb.coffee

@@ -7,6 +7,7 @@
 #= require nprogress-turbolinks
 #= require growl
 #= require cheet
+#= require jquery.guillotine
 #= require_tree .
 
 NProgress.configure

app/assets/javascripts/settings.coffee

@@ -2,4 +2,50 @@
 ($ document).on "submit", "form#edit_user", (evt) ->
   if ($ "input#user_current_password").val().length == 0
     evt.preventDefault()
-    $("button[data-target=#modal-passwd]").trigger 'click'
+    $("button[data-target=#modal-passwd]").trigger 'click'
+
+
+# Profile pic
+($ document).on 'change', 'input#user_profile_picture[type=file]', ->
+  input = ($ this)[0]
+
+  ($ '#profile-picture-crop-controls').slideUp 400, ->
+    if input.files and input.files[0]
+      fr = new FileReader()
+      ($ fr).on 'load', (e) ->
+        cropper = ($ '#profile-picture-cropper')
+        preview = ($ '#profile-picture-preview')
+
+        updateVars = (data, action) ->
+          ($ '#crop_x').val Math.floor(data.x / data.scale)
+          ($ '#crop_y').val Math.floor(data.y / data.scale)
+          ($ '#crop_w').val Math.floor(data.w / data.scale)
+          ($ '#crop_h').val Math.floor(data.h / data.scale)
+#          rx = 100 / data.w
+#          ry = 100 / data.h
+#          ($ '#profile-picture-preview').css
+#            width: Math.round(rx * preview[0].naturalWidth) + 'px'
+#            height: Math.round(ry * preview[0].naturalHeight) + 'px'
+#            marginLeft: '-' + Math.round(rx * data.x) + 'px'
+#            marginTop: '-' + Math.round(ry * data.y) + 'px'
+
+        cropper.on 'load', ->
+          side = if cropper[0].naturalWidth > cropper[0].naturalHeight
+            cropper[0].naturalHeight
+          else
+            cropper[0].naturalWidth
+
+          cropper.guillotine
+            width: side
+            height: side
+            onChange: updateVars
+
+          updateVars cropper.guillotine('getData'), 'drag' # just because
+
+          ($ '#cropper-zoom-out').click -> cropper.guillotine 'zoomOut'
+          ($ '#cropper-zoom-in').click -> cropper.guillotine 'zoomIn'
+          ($ '#profile-picture-crop-controls').slideDown()
+
+        cropper.attr 'src', e.target.result
+
+    fr.readAsDataURL(input.files[0])

app/assets/stylesheets/application.css.scss

@@ -1,6 +1,7 @@
 /*
  *= require rails_bootstrap_forms
  *= require growl
+ *= require jquery.guillotine
  *= require_self
  */
 

app/controllers/user_controller.rb

@@ -1,4 +1,6 @@
 class UserController < ApplicationController
+  before_filter :authenticate_user!, only: %w(edit update)
+
   def show
     @user = User.where('LOWER(screen_name) = ?', params[:username].downcase).first!
     @answers = @user.answers.reverse_order.paginate(page: params[:page])
@@ -9,14 +11,17 @@ class UserController < ApplicationController
   end
 
   def edit
-    authenticate_user!
   end
 
   def update
-    authenticate_user!
+    user_attributes = params.require(:user).permit(:display_name, :profile_picture, :motivation_header, :website,
-    user_attributes = params.require(:user).permit(:display_name, :motivation_header, :website, :location, :bio)
+                                                   :location, :bio, :crop_x, :crop_y, :crop_w, :crop_h)
-    unless current_user.update_attributes(user_attributes)
+    if current_user.update_attributes(user_attributes)
-      flash[:error] = 'fork it'
+      text = 'Your profile has been updated!'
+      text += ' It might take a few minutes until your new profile picture is shown everywhere.' if user_attributes[:profile_picture]
+      flash[:success] = text
+    else
+      flash[:error] = 'An error occurred. ;_;'
     end
     redirect_to edit_user_profile_path
   end

app/helpers/application_helper.rb

@@ -59,11 +59,13 @@ module ApplicationHelper
     ((!current_user.nil?) && ((current_user == user) || current_user.mod?)) ? true : false
   end
 
+  # @deprecated Use {User#profile_picture.url} instead.
   def gravatar_url(user)
+    return user.profile_picture.url :medium
     # return '/cage.png'
-    return '//www.gravatar.com/avatar' if user.nil?
+    #return '//www.gravatar.com/avatar' if user.nil?
-    return "//www.gravatar.com/avatar/#{Digest::MD5.hexdigest(user)}" if user.is_a? String
+    #return "//www.gravatar.com/avatar/#{Digest::MD5.hexdigest(user)}" if user.is_a? String
-    "//www.gravatar.com/avatar/#{Digest::MD5.hexdigest(user.email)}"
+    #"//www.gravatar.com/avatar/#{Digest::MD5.hexdigest(user.email)}"
   end
 
   def ios_web_app?

app/models/user.rb

@@ -40,6 +40,12 @@ class User < ActiveRecord::Base
 
   # validates :website, format: { with: WEBSITE_REGEX }
 
+  has_attached_file :profile_picture, styles: { large: "500x500#", medium: "256x256#", small: "80x80#" },
+                    default_url: "/images/:style/no_avatar.png", use_timestamp: false,
+                    processors: [:cropper]
+  validates_attachment_content_type :profile_picture, :content_type => /\Aimage\/.*\Z/
+  process_in_background :profile_picture
+
   before_save do
     self.display_name = 'WRYYYYYYYY' if display_name == 'Dio Brando'
     self.website = if website.match %r{\Ahttps?://}
@@ -150,4 +156,8 @@ class User < ActiveRecord::Base
   def report_comment(report, content)
     ModerationComment.create!(user: self, report: report, content: content)
   end
+
+  def cropping?
+    !crop_x.blank? && !crop_y.blank? && !crop_w.blank? && !crop_h.blank?
+  end
 end

app/views/user/_account.html.haml

@@ -1,11 +1,6 @@
 .container.j2-page
   = render 'user/settings_tabs'
   .col-md-9.col-xs-12.col-sm-9
-    .alert.alert-info
-      We currently only support avatars using
-      = succeed ',' do
-        %a{href: "https://en.gravatar.com"} Gravatar
-      after you set yours up, use the E-Mail you are using for it on here as well, we will directly use this image then!
     = render 'layouts/messages'
     .panel.panel-default
       .panel-body

app/views/user/edit.html.haml

@@ -4,10 +4,27 @@
     = render 'layouts/messages'
     .panel.panel-default
       .panel-body
-        = bootstrap_form_for(current_user, url: {action: "edit"}, method: "patch") do |f|
+        = bootstrap_form_for(current_user, url: {action: "edit"}, :html => { :multipart => true }, method: "patch") do |f|
 
           = f.text_field :display_name, label: "Your name"
 
+          .media
+            .pull-left
+              %img.img-rounded.profile--img{src: current_user.profile_picture.url(:medium)}
+            .media-body
+              = f.file_field :profile_picture
+
+          .row#profile-picture-crop-controls{style: 'display: none;'}
+            .col-sm-10.col-md-8
+              %strong Adjust your new image
+              %img#profile-picture-cropper{src: current_user.profile_picture.url(:medium)}
+            .col-sm-2.col-md-4
+              .btn-group
+                %button#cropper-zoom-out.btn.btn-inverse{type: :button}
+                  %i.fa.fa-search-minus
+                %button#cropper-zoom-in.btn.btn-inverse{type: :button}
+                  %i.fa.fa-search-plus
+
           = f.text_field :motivation_header, label: "Motivation header", placeholder: 'Ask me anything!'
 
           = f.text_field :website, label: "Website", placeholder: 'http://bad-dragon.com'
@@ -16,4 +33,7 @@
 
           = f.text_area :bio, label: "Bio", placeholder: 'In Bio war ich nie gut x--DD'
 
+          - for attrib in %i(crop_x crop_y crop_w crop_h)
+            = f.hidden_field attrib, id: attrib
+
           = f.submit "Save settings", class: 'btn btn-primary'

config/sidekiq.yml

@@ -6,4 +6,5 @@ staging:
 production:
   :concurrency: 25
 :queues:
-  - share
+  - share
+  - paperclip

db/migrate/20141229085904_add_attachment_profile_picture_to_users.rb

@@ -0,0 +1,11 @@
+class AddAttachmentProfilePictureToUsers < ActiveRecord::Migration
+  def self.up
+    change_table :users do |t|
+      t.attachment :profile_picture
+    end
+  end
+
+  def self.down
+    remove_attachment :users, :profile_picture
+  end
+end

db/migrate/20141229105013_add_profile_picture_processing_to_users.rb

@@ -0,0 +1,5 @@
+class AddProfilePictureProcessingToUsers < ActiveRecord::Migration
+  def change
+    add_column :users, :profile_picture_processing, :boolean
+  end
+end

db/migrate/20141229133149_add_crop_values_to_users.rb

@@ -0,0 +1,10 @@
+class AddCropValuesToUsers < ActiveRecord::Migration
+  def change
+    # this is a ugly hack and will stay until I find a way to pass parameters
+    # to the paperclip Sidekiq worker.  oh well.
+    add_column :users, :crop_x, :integer
+    add_column :users, :crop_y, :integer
+    add_column :users, :crop_w, :integer
+    add_column :users, :crop_h, :integer
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20141228202825) do
+ActiveRecord::Schema.define(version: 20141229133149) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -133,12 +133,12 @@ ActiveRecord::Schema.define(version: 20141228202825) do
   add_index "smiles", ["user_id"], name: "index_smiles_on_user_id", using: :btree
 
   create_table "users", force: true do |t|
-    t.string   "email",                  default: "",    null: false
+    t.string   "email",                        default: "",    null: false
-    t.string   "encrypted_password",     default: "",    null: false
+    t.string   "encrypted_password",           default: "",    null: false
     t.string   "reset_password_token"
     t.datetime "reset_password_sent_at"
     t.datetime "remember_created_at"
-    t.integer  "sign_in_count",          default: 0,     null: false
+    t.integer  "sign_in_count",                default: 0,     null: false
     t.datetime "current_sign_in_at"
     t.datetime "last_sign_in_at"
     t.string   "current_sign_in_ip"
@@ -146,19 +146,28 @@ ActiveRecord::Schema.define(version: 20141228202825) do
     t.datetime "created_at"
     t.datetime "updated_at"
     t.string   "screen_name"
-    t.integer  "friend_count",           default: 0,     null: false
+    t.integer  "friend_count",                 default: 0,     null: false
-    t.integer  "follower_count",         default: 0,     null: false
+    t.integer  "follower_count",               default: 0,     null: false
-    t.integer  "asked_count",            default: 0,     null: false
+    t.integer  "asked_count",                  default: 0,     null: false
-    t.integer  "answered_count",         default: 0,     null: false
+    t.integer  "answered_count",               default: 0,     null: false
-    t.integer  "commented_count",        default: 0,     null: false
+    t.integer  "commented_count",              default: 0,     null: false
     t.string   "display_name"
-    t.integer  "smiled_count",           default: 0,     null: false
+    t.integer  "smiled_count",                 default: 0,     null: false
-    t.boolean  "admin",                  default: false, null: false
+    t.boolean  "admin",                        default: false, null: false
-    t.string   "motivation_header",      default: "",    null: false
+    t.string   "motivation_header",            default: "",    null: false
-    t.string   "website",                default: "",    null: false
+    t.string   "website",                      default: "",    null: false
-    t.string   "location",               default: "",    null: false
+    t.string   "location",                     default: "",    null: false
-    t.text     "bio",                    default: "",    null: false
+    t.text     "bio",                          default: "",    null: false
-    t.boolean  "moderator",              default: false, null: false
+    t.boolean  "moderator",                    default: false, null: false
+    t.string   "profile_picture_file_name"
+    t.string   "profile_picture_content_type"
+    t.integer  "profile_picture_file_size"
+    t.datetime "profile_picture_updated_at"
+    t.boolean  "profile_picture_processing"
+    t.integer  "crop_x"
+    t.integer  "crop_y"
+    t.integer  "crop_w"
+    t.integer  "crop_h"
   end
 
   add_index "users", ["email"], name: "index_users_on_email", unique: true, using: :btree

lib/assets/javascripts/jquery.guillotine.js

@@ -0,0 +1,417 @@
+// Generated by CoffeeScript 1.8.0
+
+/*
+ * jQuery Guillotine Plugin v1.3.0
+ * http://matiasgagliano.github.com/guillotine/
+ *
+ * Copyright 2014, Matías Gagliano.
+ * Dual licensed under the MIT or GPLv3 licenses.
+ * http://opensource.org/licenses/MIT
+ * http://opensource.org/licenses/GPL-3.0
+ *
+ */
+
+(function() {
+  "use strict";
+  var $, Guillotine, canTransform, defaults, events, getPointerPosition, hardwareAccelerate, isTouch, pluginName, scope, touchRegExp, validEvent, whitelist,
+    __bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; },
+    __indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; };
+
+  $ = jQuery;
+
+  pluginName = 'guillotine';
+
+  scope = 'guillotine';
+
+  events = {
+    start: "touchstart." + scope + " mousedown." + scope + " pointerdown." + scope,
+    move: "touchmove." + scope + " mousemove." + scope + " pointermove." + scope,
+    stop: "touchend." + scope + " mouseup." + scope + " pointerup." + scope
+  };
+
+  defaults = {
+    width: 400,
+    height: 300,
+    zoomStep: 0.1,
+    init: null,
+    eventOnChange: null,
+    onChange: null
+  };
+
+  touchRegExp = /touch/i;
+
+  isTouch = function(e) {
+    return touchRegExp.test(e.type);
+  };
+
+  validEvent = function(e) {
+    if (isTouch(e)) {
+      return e.originalEvent.changedTouches.length === 1;
+    } else {
+      return e.which === 1;
+    }
+  };
+
+  getPointerPosition = function(e) {
+    if (isTouch(e)) {
+      e = e.originalEvent.touches[0];
+    }
+    return {
+      x: e.pageX,
+      y: e.pageY
+    };
+  };
+
+  canTransform = function() {
+    var hasTransform, helper, prefix, prefixes, prop, test, tests, value, _i, _len;
+    hasTransform = false;
+    prefixes = 'webkit,Moz,O,ms,Khtml'.split(',');
+    tests = {
+      transform: 'transform'
+    };
+    for (_i = 0, _len = prefixes.length; _i < _len; _i++) {
+      prefix = prefixes[_i];
+      tests[prefix + 'Transform'] = "-" + (prefix.toLowerCase()) + "-transform";
+    }
+    helper = document.createElement('img');
+    document.body.insertBefore(helper, null);
+    for (test in tests) {
+      prop = tests[test];
+      if (helper.style[test] === void 0) {
+        continue;
+      }
+      helper.style[test] = 'rotate(90deg)';
+      value = window.getComputedStyle(helper).getPropertyValue(prop);
+      if ((value != null) && value.length && value !== 'none') {
+        hasTransform = true;
+        break;
+      }
+    }
+    document.body.removeChild(helper);
+    canTransform = hasTransform ? (function() {
+      return true;
+    }) : (function() {
+      return false;
+    });
+    return canTransform();
+  };
+
+  hardwareAccelerate = function(el) {
+    return $(el).css({
+      '-webkit-perspective': 1000,
+      'perspective': 1000,
+      '-webkit-backface-visibility': 'hidden',
+      'backface-visibility': 'hidden'
+    });
+  };
+
+  Guillotine = (function() {
+    function Guillotine(element, options) {
+      this._drag = __bind(this._drag, this);
+      this._unbind = __bind(this._unbind, this);
+      this._start = __bind(this._start, this);
+      var _ref;
+      this.op = $.extend(true, {}, defaults, options, $(element).data(pluginName));
+      this.enabled = true;
+      this.zoomInFactor = 1 + this.op.zoomStep;
+      this.zoomOutFactor = 1 / this.zoomInFactor;
+      _ref = [0, 0, 0, 0, 0], this.width = _ref[0], this.height = _ref[1], this.left = _ref[2], this.top = _ref[3], this.angle = _ref[4];
+      this.data = {
+        scale: 1,
+        angle: 0,
+        x: 0,
+        y: 0,
+        w: this.op.width,
+        h: this.op.height
+      };
+      this._wrap(element);
+      if (this.op.init != null) {
+        this._init();
+      }
+      if (this.width < 1 || this.height < 1) {
+        this._fit() && this._center();
+      }
+      hardwareAccelerate(this.$el);
+      this.$el.on(events.start, this._start);
+    }
+
+    Guillotine.prototype._wrap = function(element) {
+      var canvas, el, guillotine, height, img, paddingTop, width, _ref, _ref1, _ref2;
+      el = $(element);
+      if (el.prop('tagName') === 'IMG') {
+        img = document.createElement('img');
+        img.src = el.attr('src');
+        _ref = [img.width, img.height], width = _ref[0], height = _ref[1];
+      } else {
+        _ref1 = [el.width(), el.height()], width = _ref1[0], height = _ref1[1];
+      }
+      _ref2 = [width / this.op.width, height / this.op.height], this.width = _ref2[0], this.height = _ref2[1];
+      canvas = $('<div>').addClass('guillotine-canvas');
+      canvas.css({
+        width: this.width * 100 + '%',
+        height: this.height * 100 + '%',
+        top: 0,
+        left: 0
+      });
+      canvas = el.wrap(canvas).parent();
+      paddingTop = this.op.height / this.op.width * 100 + '%';
+      guillotine = $('<div>').addClass('guillotine-window');
+      guillotine.css({
+        width: '100%',
+        height: 'auto',
+        'padding-top': paddingTop
+      });
+      guillotine = canvas.wrap(guillotine).parent();
+      this.$el = el;
+      this.el = el[0];
+      this.$canvas = canvas;
+      this.canvas = canvas[0];
+      this.$gllt = guillotine;
+      this.gllt = guillotine[0];
+      return this.$document = $(element.ownerDocument);
+    };
+
+    Guillotine.prototype._unwrap = function() {
+      this.$el.removeAttr('style');
+      this.$el.insertBefore(this.gllt);
+      return this.$gllt.remove();
+    };
+
+    Guillotine.prototype._init = function() {
+      var angle, o, scale;
+      o = this.op.init;
+      if ((scale = parseFloat(o.scale))) {
+        this._zoom(scale);
+      }
+      if ((angle = parseInt(o.angle))) {
+        this._rotate(angle);
+      }
+      return this._offset(parseInt(o.x) / this.op.width || 0, parseInt(o.y) / this.op.height || 0);
+    };
+
+    Guillotine.prototype._start = function(e) {
+      if (!(this.enabled && validEvent(e))) {
+        return;
+      }
+      e.preventDefault();
+      e.stopImmediatePropagation();
+      this.p = getPointerPosition(e);
+      return this._bind();
+    };
+
+    Guillotine.prototype._bind = function() {
+      this.$document.on(events.move, this._drag);
+      return this.$document.on(events.stop, this._unbind);
+    };
+
+    Guillotine.prototype._unbind = function(e) {
+      this.$document.off(events.move, this._drag);
+      this.$document.off(events.stop, this._unbind);
+      if (e != null) {
+        return this._trigger('drag');
+      }
+    };
+
+    Guillotine.prototype._trigger = function(action) {
+      if (this.op.eventOnChange != null) {
+        this.$el.trigger(this.op.eventOnChange, [this.data, action]);
+      }
+      if (typeof this.op.onChange === 'function') {
+        return this.op.onChange.call(this.el, this.data, action);
+      }
+    };
+
+    Guillotine.prototype._drag = function(e) {
+      var dx, dy, left, p, top;
+      e.preventDefault();
+      e.stopImmediatePropagation();
+      p = getPointerPosition(e);
+      dx = p.x - this.p.x;
+      dy = p.y - this.p.y;
+      this.p = p;
+      left = dx === 0 ? null : this.left - dx / this.gllt.clientWidth;
+      top = dy === 0 ? null : this.top - dy / this.gllt.clientHeight;
+      return this._offset(left, top);
+    };
+
+    Guillotine.prototype._offset = function(left, top) {
+      if (left || left === 0) {
+        if (left < 0) {
+          left = 0;
+        }
+        if (left > this.width - 1) {
+          left = this.width - 1;
+        }
+        this.canvas.style.left = (-left * 100).toFixed(2) + '%';
+        this.left = left;
+        this.data.x = Math.round(left * this.op.width);
+      }
+      if (top || top === 0) {
+        if (top < 0) {
+          top = 0;
+        }
+        if (top > this.height - 1) {
+          top = this.height - 1;
+        }
+        this.canvas.style.top = (-top * 100).toFixed(2) + '%';
+        this.top = top;
+        return this.data.y = Math.round(top * this.op.height);
+      }
+    };
+
+    Guillotine.prototype._zoom = function(factor) {
+      var h, left, top, w, _ref;
+      if (factor <= 0 || factor === 1) {
+        return;
+      }
+      _ref = [this.width, this.height], w = _ref[0], h = _ref[1];
+      if (w * factor > 1 && h * factor > 1) {
+        this.width *= factor;
+        this.height *= factor;
+        this.canvas.style.width = (this.width * 100).toFixed(2) + '%';
+        this.canvas.style.height = (this.height * 100).toFixed(2) + '%';
+        this.data.scale *= factor;
+      } else {
+        this._fit();
+        factor = this.width / w;
+      }
+      left = (this.left + 0.5) * factor - 0.5;
+      top = (this.top + 0.5) * factor - 0.5;
+      return this._offset(left, top);
+    };
+
+    Guillotine.prototype._fit = function() {
+      var prevWidth, relativeRatio;
+      prevWidth = this.width;
+      relativeRatio = this.height / this.width;
+      if (relativeRatio > 1) {
+        this.width = 1;
+        this.height = relativeRatio;
+      } else {
+        this.width = 1 / relativeRatio;
+        this.height = 1;
+      }
+      this.canvas.style.width = (this.width * 100).toFixed(2) + '%';
+      this.canvas.style.height = (this.height * 100).toFixed(2) + '%';
+      return this.data.scale *= this.width / prevWidth;
+    };
+
+    Guillotine.prototype._center = function() {
+      return this._offset((this.width - 1) / 2, (this.height - 1) / 2);
+    };
+
+    Guillotine.prototype._rotate = function(angle) {
+      var canvasRatio, glltRatio, h, w, _ref, _ref1, _ref2;
+      if (!canTransform()) {
+        return;
+      }
+      if (!(angle !== 0 && angle % 90 === 0)) {
+        return;
+      }
+      this.angle = (this.angle + angle) % 360;
+      if (this.angle < 0) {
+        this.angle = 360 + this.angle;
+      }
+      if (angle % 180 !== 0) {
+        glltRatio = this.op.height / this.op.width;
+        _ref = [this.height * glltRatio, this.width / glltRatio], this.width = _ref[0], this.height = _ref[1];
+        if (this.width >= 1 && this.height >= 1) {
+          this.canvas.style.width = this.width * 100 + '%';
+          this.canvas.style.height = this.height * 100 + '%';
+        } else {
+          this._fit();
+        }
+      }
+      _ref1 = [1, 1], w = _ref1[0], h = _ref1[1];
+      if (this.angle % 180 !== 0) {
+        canvasRatio = this.height / this.width * glltRatio;
+        _ref2 = [canvasRatio, 1 / canvasRatio], w = _ref2[0], h = _ref2[1];
+      }
+      this.el.style.width = w * 100 + '%';
+      this.el.style.height = h * 100 + '%';
+      this.el.style.left = (1 - w) / 2 * 100 + '%';
+      this.el.style.top = (1 - h) / 2 * 100 + '%';
+      this.$el.css({
+        transform: "rotate(" + this.angle + "deg)"
+      });
+      this._center();
+      return this.data.angle = this.angle;
+    };
+
+    Guillotine.prototype.rotateLeft = function() {
+      return this.enabled && (this._rotate(-90), this._trigger('rotateLeft'));
+    };
+
+    Guillotine.prototype.rotateRight = function() {
+      return this.enabled && (this._rotate(90), this._trigger('rotateRight'));
+    };
+
+    Guillotine.prototype.center = function() {
+      return this.enabled && (this._center(), this._trigger('center'));
+    };
+
+    Guillotine.prototype.fit = function() {
+      return this.enabled && (this._fit(), this._center(), this._trigger('fit'));
+    };
+
+    Guillotine.prototype.zoomIn = function() {
+      return this.enabled && (this._zoom(this.zoomInFactor), this._trigger('zoomIn'));
+    };
+
+    Guillotine.prototype.zoomOut = function() {
+      return this.enabled && (this._zoom(this.zoomOutFactor), this._trigger('zoomOut'));
+    };
+
+    Guillotine.prototype.getData = function() {
+      return this.data;
+    };
+
+    Guillotine.prototype.enable = function() {
+      return this.enabled = true;
+    };
+
+    Guillotine.prototype.disable = function() {
+      return this.enabled = false;
+    };
+
+    Guillotine.prototype.remove = function() {
+      this._unbind();
+      this._unwrap();
+      this.disable();
+      this.$el.off(events.start, this._start);
+      return this.$el.removeData(pluginName + 'Instance');
+    };
+
+    return Guillotine;
+
+  })();
+
+  whitelist = ['rotateLeft', 'rotateRight', 'center', 'fit', 'zoomIn', 'zoomOut', 'instance', 'getData', 'enable', 'disable', 'remove'];
+
+  $.fn[pluginName] = function(options) {
+    if (typeof options !== 'string') {
+      return this.each(function() {
+        var guillotine;
+        if (!$.data(this, pluginName + 'Instance')) {
+          guillotine = new Guillotine(this, options);
+          return $.data(this, pluginName + 'Instance', guillotine);
+        }
+      });
+    } else if (__indexOf.call(whitelist, options) >= 0) {
+      if (options === 'instance') {
+        return $.data(this[0], pluginName + 'Instance');
+      }
+      if (options === 'getData') {
+        return $.data(this[0], pluginName + 'Instance')[options]();
+      }
+      return this.each(function() {
+        var guillotine;
+        guillotine = $.data(this, pluginName + 'Instance');
+        if (guillotine) {
+          return guillotine[options]();
+        }
+      });
+    }
+  };
+
+}).call(this);

lib/assets/stylesheets/jquery.guillotine.css

@@ -0,0 +1,28 @@
+.guillotine-window {
+  display: block;
+  position: relative;
+  overflow: hidden;
+}
+
+.guillotine-canvas {
+  position: absolute;
+  top: 0;
+  left: 0;
+  text-align: center;
+  margin: 0 !important;
+  padding: 0 !important;
+  border: none !important;
+}
+
+.guillotine-canvas > * {
+  position: absolute;
+  top: 0;
+  left: 0;
+  max-width: none;
+  max-height: none;
+  width: 100%;
+  height: 100%;
+  margin: 0 !important;
+  padding: 0 !important;
+  border: none !important;
+}

lib/paperclip_processors/cropper.rb

@@ -0,0 +1,22 @@
+module Paperclip
+  class Cropper < Thumbnail
+    def transformation_command
+      if crop_command
+        x = super
+        i = x.index '-crop'
+        2.times { x.delete_at i } if i
+        crop_command + x
+      else
+        super
+      end
+    end
+
+    def crop_command
+      target = @attachment.instance
+      if target.cropping?
+        ['-crop', "'#{target.crop_w.to_i}x#{target.crop_h.to_i}+#{target.crop_x.to_i}+#{target.crop_y.to_i}'"]
+      end
+    end
+  end
+end
+