Merge branch 'issue_7959' into 'master'

Crop avatars on the client before upload

<img src="/uploads/535d69956cc5904870ae5d95132a35af/Screen_Shot_2016-03-17_at_9.55.56_AM.png" width="700">

closes #7959
closes #600 

See merge request !3270

CHANGELOG

@@ -3,6 +3,7 @@ Please view this file on the master branch, on stable branches it's out of date.
 v 8.7.0 (unreleased)
   - Preserve time notes/comments have been updated at when moving issue
   - Make HTTP(s) label consistent on clone bar (Stan Hu)
+  - Fix avatar stretching by providing a cropping feature
 
 v 8.6.1
   - Add option to reload the schema before restoring a database backup. !2807

app/assets/javascripts/application.js.coffee

@@ -43,6 +43,7 @@
 #= require jquery.nicescroll
 #= require_tree .
 #= require fuzzaldrin-plus
+#= require cropper
 
 window.slugify = (text) ->
   text.replace(/[^-a-zA-Z0-9]+/g, '_').toLowerCase()

app/assets/javascripts/gl_crop.js.coffee

+class GitLabCrop
+  # Matches everything but the file name
+  FILENAMEREGEX = /^.*[\\\/]/
+
+  constructor: (input, opts = {}) ->
+    @fileInput = $(input)
+
+    # We should rename to avoid spec to fail
+    # Form will submit the proper input filed with a file using FormData
+    @fileInput
+      .attr('name', "#{@fileInput.attr('name')}-trigger")
+      .attr('id', "#{@fileInput.attr('id')}-trigger")
+
+    # Set defaults
+    {
+      @exportWidth = 200
+      @exportHeight = 200
+      @cropBoxWidth = 200
+      @cropBoxHeight = 200
+      @form = @fileInput.parents('form')
+
+      # Required params
+      @filename
+      @previewImage
+      @modalCrop
+      @pickImageEl
+      @uploadImageBtn
+      @modalCropImg
+    } = opts
+
+    # Ensure needed elements are jquery objects
+    # If selector is provided we will convert them to a jQuery Object
+    @filename = @getElement(@filename)
+    @previewImage = @getElement(@previewImage)
+    @pickImageEl = @getElement(@pickImageEl)
+
+    # Modal elements usually are outside the @form element
+    @modalCrop = if _.isString(@modalCrop) then $(@modalCrop) else @modalCrop
+    @uploadImageBtn = if _.isString(@uploadImageBtn) then $(@uploadImageBtn) else @uploadImageBtn
+    @modalCropImg = if _.isString(@modalCropImg) then $(@modalCropImg) else @modalCropImg
+
+    @cropActionsBtn = @modalCrop.find('[data-method]')
+
+    @bindEvents()
+
+  getElement: (selector) ->
+    $(selector, @form)
+
+  bindEvents: ->
+    _this = @
+    @fileInput.on 'change', (e) ->
+      _this.onFileInputChange(e, @)
+
+    @pickImageEl.on 'click', @onPickImageClick
+    @modalCrop.on 'shown.bs.modal', @onModalShow
+    @modalCrop.on 'hidden.bs.modal', @onModalHide
+    @uploadImageBtn.on 'click', @onUploadImageBtnClick
+    @cropActionsBtn.on 'click', (e) ->
+      btn = @
+      _this.onActionBtnClick(btn)
+    @croppedImageBlob = null
+
+  onPickImageClick: =>
+    @fileInput.trigger('click')
+
+  onModalShow: =>
+    _this = @
+    @modalCropImg.cropper(
+      viewMode: 1
+      center: false
+      aspectRatio: 1
+      modal: true
+      scalable: false
+      rotatable: false
+      zoomable: true
+      dragMode: 'move'
+      guides: false
+      zoomOnTouch: false
+      zoomOnWheel: false
+      cropBoxMovable: false
+      cropBoxResizable: false
+      toggleDragModeOnDblclick: false
+      built: ->
+        $image = $(@)
+        container = $image.cropper 'getContainerData'
+        cropBoxWidth = _this.cropBoxWidth;
+        cropBoxHeight = _this.cropBoxHeight;
+
+        $image.cropper('setCropBoxData',
+          width: cropBoxWidth,
+          height: cropBoxHeight,
+          left: (container.width - cropBoxWidth) / 2,
+          top: (container.height - cropBoxHeight) / 2
+        )
+    )
+
+
+  onModalHide: =>
+    @modalCropImg
+      .attr('src', '') # Remove attached image
+      .cropper('destroy') # Destroy cropper instance
+
+  onUploadImageBtnClick: (e) =>
+    e.preventDefault()
+    @setBlob()
+    @setPreview()
+    @modalCrop.modal('hide')
+    @fileInput.val('')
+
+  onActionBtnClick: (btn) ->
+    data = $(btn).data()
+
+    if @modalCropImg.data('cropper') && data.method
+      result = @modalCropImg.cropper data.method, data.option
+
+  onFileInputChange: (e, input) ->
+    @readFile(input)
+
+  readFile: (input) ->
+    _this = @
+    reader = new FileReader
+    reader.onload = ->
+      _this.modalCropImg.attr('src', reader.result)
+      _this.modalCrop.modal('show')
+
+    reader.readAsDataURL(input.files[0])
+
+  dataURLtoBlob: (dataURL) ->
+    binary = atob(dataURL.split(',')[1])
+    array = []
+    for v, k in  binary
+      array.push(binary.charCodeAt(k))
+    new Blob([new Uint8Array(array)], type: 'image/png')
+
+  setPreview: ->
+    @previewImage.attr('src', @dataURL)
+    filename = @fileInput.val().replace(FILENAMEREGEX, '')
+    @filename.text(filename)
+
+  setBlob: ->
+    @dataURL = @modalCropImg.cropper('getCroppedCanvas',
+        width: 200
+        height: 200
+      ).toDataURL('image/png')
+    @croppedImageBlob = @dataURLtoBlob(@dataURL)
+
+  getBlob: ->
+    @croppedImageBlob
+
+$.fn.glCrop = (opts) ->
+  return @.each ->
+    $(@).data('glcrop', new GitLabCrop(@, opts))

app/assets/javascripts/profile.js.coffee

 class @Profile
-  constructor: ->
+  constructor: (opts = {}) ->
+    {
+      @form = $('.edit-user')
+    } = opts
+
     # Automatically submit the Preferences form when any of its radio buttons change
     $('.js-preferences-form').on 'change.preference', 'input[type=radio]', ->
       $(this).parents('form').submit()
@@ -17,14 +21,46 @@ class @Profile
     $('.update-notifications').on 'ajax:complete', ->
       $(this).find('.btn-save').enable()
 
-    $('.js-choose-user-avatar-button').bind "click", ->
-      form = $(this).closest("form")
-      form.find(".js-user-avatar-input").click()
+    @bindEvents()
+
+    cropOpts =
+      filename: '.js-avatar-filename'
+      previewImage: '.avatar-image .avatar'
+      modalCrop: '.modal-profile-crop'
+      pickImageEl: '.js-choose-user-avatar-button'
+      uploadImageBtn: '.js-upload-user-avatar'
+      modalCropImg: '.modal-profile-crop-image'
+
+    @avatarGlCrop = $('.js-user-avatar-input').glCrop(cropOpts).data 'glcrop'
+
+  bindEvents: ->
+    @form.on 'submit', @onSubmitForm
+
+  onSubmitForm: (e) =>
+    e.preventDefault()
+    @saveForm()
+
+  saveForm: ->
+    self = @
+
+    formData = new FormData(@form[0])
+    formData.append('user[avatar]', @avatarGlCrop.getBlob(), 'avatar.png')
 
-    $('.js-user-avatar-input').bind "change", ->
-      form = $(this).closest("form")
-      filename = $(this).val().replace(/^.*[\\\/]/, '')
-      form.find(".js-avatar-filename").text(filename)
+    $.ajax
+      url: @form.attr('action')
+      type: @form.attr('method')
+      data: formData
+      dataType: "json"
+      processData: false
+      contentType: false
+      success: (response) ->
+        new Flash(response.message, 'notice')
+      error: (jqXHR) ->
+        new Flash(jqXHR.responseJSON.message, 'alert')
+      complete: ->
+        window.scrollTo 0, 0
+        # Enable submit button after requests ends
+        self.form.find(':input[disabled]').enable()
 
 $ ->
   # Extract the SSH Key title from its comment

app/assets/stylesheets/application.scss

@@ -9,6 +9,7 @@
  *= require_self
  *= require dropzone/basic
  *= require cal-heatmap
+ *= require cropper.css
 */
 
 /*

app/assets/stylesheets/pages/profile.scss

@@ -197,3 +197,24 @@
     width: 105px;
   }
 }
+
+.modal-profile-crop {
+  .modal-dialog {
+    width: 380px;
+
+    @media (max-width: $screen-sm-min) {
+      width: auto;
+    }
+
+  }
+
+  .profile-crop-image-container {
+    height: 300px;
+    margin: 0 auto;
+  }
+
+  .crop-controls {
+    padding: 10px 0 0 0;
+    text-align: center;
+  }
+}

app/controllers/profiles_controller.rb

@@ -11,15 +11,16 @@ class ProfilesController < Profiles::ApplicationController
   def update
     user_params.except!(:email) if @user.ldap_user?
 
+    respond_to do |format|
       if @user.update_attributes(user_params)
-      flash[:notice] = "Profile was successfully updated"
+        message = "Profile was successfully updated"
+        format.html { redirect_back_or_default(default: { action: 'show' }, options: { notice: message }) }
+        format.json { render json: { message: message } }
       else
-      messages = @user.errors.full_messages.uniq.join('. ')
-      flash[:alert] = "Failed to update profile. #{messages}"
+        message = @user.errors.full_messages.uniq.join('. ')
+        format.html { redirect_back_or_default(default: { action: 'show' }, options: { alert: "Failed to update profile. #{message}" }) }
+        format.json { render json: { message: message }, status: :unprocessable_entity }
       end
-
-    respond_to do |format|
-      format.html { redirect_back_or_default(default: { action: 'show' }) }
     end
   end
 

app/views/profiles/show.html.haml

@@ -26,7 +26,7 @@
         %a.btn.js-choose-user-avatar-button
           Browse file...
         %span.avatar-file-name.prepend-left-default.js-avatar-filename No file chosen
-        = f.file_field :avatar, class: "js-user-avatar-input hidden"
+        = f.file_field :avatar, class: "js-user-avatar-input hidden", accept: "image/*"
       .help-block
         The maximum file size allowed is 200KB.
       - if @user.avatar?
@@ -94,3 +94,25 @@
       .prepend-top-default.append-bottom-default
         = f.submit 'Update profile settings', class: "btn btn-success"
         = link_to "Cancel", user_path(current_user), class: "btn btn-cancel"
+
+.modal.modal-profile-crop
+  .modal-dialog
+    .modal-content
+      .modal-header
+        %button.close{:type => "button", :'data-dismiss' => "modal"}
+          %span
+            ×
+        %h4.modal-title
+          Position and size your new avatar
+      .modal-body
+        .profile-crop-image-container
+          %img.modal-profile-crop-image
+        .crop-controls
+          .btn-group
+            %button.btn.btn-primary{ data: { method: "zoom", option: "0.1" } }
+              %span.fa.fa-search-plus
+            %button.btn.btn-primary{ data: { method: "zoom", option: "-0.1" } }
+              %span.fa.fa-search-minus
+      .modal-footer
+        %button.btn.btn-primary.js-upload-user-avatar{:type => "button"}
+          Set new profile picture

vendor/assets/stylesheets/cropper.css

+/*!
+ * Cropper v2.3.0
+ * https://github.com/fengyuanchen/cropper
+ *
+ * Copyright (c) 2014-2016 Fengyuan Chen and contributors
+ * Released under the MIT license
+ *
+ * Date: 2016-02-22T02:13:13.332Z
+ */
+.cropper-container {
+  font-size: 0;
+  line-height: 0;
+
+  position: relative;
+
+  -webkit-user-select: none;
+     -moz-user-select: none;
+      -ms-user-select: none;
+          user-select: none;
+
+  direction: ltr !important;
+  -ms-touch-action: none;
+      touch-action: none;
+  -webkit-tap-highlight-color: transparent;
+  -webkit-touch-callout: none;
+}
+
+.cropper-container img {
+  display: block;
+
+  width: 100%;
+  min-width: 0 !important;
+  max-width: none !important;
+  height: 100%;
+  min-height: 0 !important;
+  max-height: none !important;
+
+  image-orientation: 0deg !important;
+}
+
+.cropper-wrap-box,
+.cropper-canvas,
+.cropper-drag-box,
+.cropper-crop-box,
+.cropper-modal {
+  position: absolute;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+}
+
+.cropper-wrap-box {
+  overflow: hidden;
+}
+
+.cropper-drag-box {
+  opacity: 0;
+  background-color: #fff;
+
+  filter: alpha(opacity=0);
+}
+
+.cropper-modal {
+  opacity: .5;
+  background-color: #000;
+
+  filter: alpha(opacity=50);
+}
+
+.cropper-view-box {
+  display: block;
+  overflow: hidden;
+
+  width: 100%;
+  height: 100%;
+
+  outline: 1px solid #39f;
+  outline-color: rgba(51, 153, 255, .75);
+}
+
+.cropper-dashed {
+  position: absolute;
+
+  display: block;
+
+  opacity: .5;
+  border: 0 dashed #eee;
+
+  filter: alpha(opacity=50);
+}
+
+.cropper-dashed.dashed-h {
+  top: 33.33333%;
+  left: 0;
+
+  width: 100%;
+  height: 33.33333%;
+
+  border-top-width: 1px;
+  border-bottom-width: 1px;
+}
+
+.cropper-dashed.dashed-v {
+  top: 0;
+  left: 33.33333%;
+
+  width: 33.33333%;
+  height: 100%;
+
+  border-right-width: 1px;
+  border-left-width: 1px;
+}
+
+.cropper-center {
+  position: absolute;
+  top: 50%;
+  left: 50%;
+
+  display: block;
+
+  width: 0;
+  height: 0;
+
+  opacity: .75;
+
+  filter: alpha(opacity=75);
+}
+
+.cropper-center:before,
+.cropper-center:after {
+  position: absolute;
+
+  display: block;
+
+  content: ' ';
+
+  background-color: #eee;
+}
+
+.cropper-center:before {
+  top: 0;
+  left: -3px;
+
+  width: 7px;
+  height: 1px;
+}
+
+.cropper-center:after {
+  top: -3px;
+  left: 0;
+
+  width: 1px;
+  height: 7px;
+}
+
+.cropper-face,
+.cropper-line,
+.cropper-point {
+  position: absolute;
+
+  display: block;
+
+  width: 100%;
+  height: 100%;
+
+  opacity: .1;
+
+  filter: alpha(opacity=10);
+}
+
+.cropper-face {
+  top: 0;
+  left: 0;
+
+  background-color: #fff;
+}
+
+.cropper-line {
+  background-color: #39f;
+}
+
+.cropper-line.line-e {
+  top: 0;
+  right: -3px;
+
+  width: 5px;
+
+  cursor: e-resize;
+}
+
+.cropper-line.line-n {
+  top: -3px;
+  left: 0;
+
+  height: 5px;
+
+  cursor: n-resize;
+}
+
+.cropper-line.line-w {
+  top: 0;
+  left: -3px;
+
+  width: 5px;
+
+  cursor: w-resize;
+}
+
+.cropper-line.line-s {
+  bottom: -3px;
+  left: 0;
+
+  height: 5px;
+
+  cursor: s-resize;
+}
+
+.cropper-point {
+  width: 5px;
+  height: 5px;
+
+  opacity: .75;
+  background-color: #39f;
+
+  filter: alpha(opacity=75);
+}
+
+.cropper-point.point-e {
+  top: 50%;
+  right: -3px;
+
+  margin-top: -3px;
+
+  cursor: e-resize;
+}
+
+.cropper-point.point-n {
+  top: -3px;
+  left: 50%;
+
+  margin-left: -3px;
+
+  cursor: n-resize;
+}
+
+.cropper-point.point-w {
+  top: 50%;
+  left: -3px;
+
+  margin-top: -3px;
+
+  cursor: w-resize;
+}
+
+.cropper-point.point-s {
+  bottom: -3px;
+  left: 50%;
+
+  margin-left: -3px;
+
+  cursor: s-resize;
+}
+
+.cropper-point.point-ne {
+  top: -3px;
+  right: -3px;
+
+  cursor: ne-resize;
+}
+
+.cropper-point.point-nw {
+  top: -3px;
+  left: -3px;
+
+  cursor: nw-resize;
+}
+
+.cropper-point.point-sw {
+  bottom: -3px;
+  left: -3px;
+
+  cursor: sw-resize;
+}
+
+.cropper-point.point-se {
+  right: -3px;
+  bottom: -3px;
+
+  width: 20px;
+  height: 20px;
+
+  cursor: se-resize;
+
+  opacity: 1;
+
+  filter: alpha(opacity=100);
+}
+
+.cropper-point.point-se:before {
+  position: absolute;
+  right: -50%;
+  bottom: -50%;
+
+  display: block;
+
+  width: 200%;
+  height: 200%;
+
+  content: ' ';
+
+  opacity: 0;
+  background-color: #39f;
+
+  filter: alpha(opacity=0);
+}
+
+@media (min-width: 768px) {
+  .cropper-point.point-se {
+    width: 15px;
+    height: 15px;
+  }
+}
+
+@media (min-width: 992px) {
+  .cropper-point.point-se {
+    width: 10px;
+    height: 10px;
+  }
+}
+
+@media (min-width: 1200px) {
+  .cropper-point.point-se {
+    width: 5px;
+    height: 5px;
+
+    opacity: .75;
+
+    filter: alpha(opacity=75);
+  }
+}
+
+.cropper-invisible {
+  opacity: 0;
+
+  filter: alpha(opacity=0);
+}
+
+.cropper-bg {
+  background-image: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQAQMAAAAlPW0iAAAAA3NCSVQICAjb4U/gAAAABlBMVEXMzMz////TjRV2AAAACXBIWXMAAArrAAAK6wGCiw1aAAAAHHRFWHRTb2Z0d2FyZQBBZG9iZSBGaXJld29ya3MgQ1M26LyyjAAAABFJREFUCJlj+M/AgBVhF/0PAH6/D/HkDxOGAAAAAElFTkSuQmCC');
+}
+
+.cropper-hide {
+  position: absolute;
+
+  display: block;
+
+  width: 0;
+  height: 0;
+}
+
+.cropper-hidden {
+  display: none !important;
+}
+
+.cropper-move {
+  cursor: move;
+}
+
+.cropper-crop {
+  cursor: crosshair;
+}
+
+.cropper-disabled .cropper-drag-box,
+.cropper-disabled .cropper-face,
+.cropper-disabled .cropper-line,
+.cropper-disabled .cropper-point {
+  cursor: not-allowed;
+}