Coloured top bars for artists

package.json

@@ -7,7 +7,9 @@
     "url": "ssh://git@phabricator.poniverse.net/diffusion/PF/pony-fm.git"
   },
   "packages": {},
-  "dependencies": {},
+  "dependencies": {
+    "color-thief": "github:logic-dev/color-thief"
+  },
   "devDependencies": {
     "angular": "1.5.6",
     "angular-chart.js": "1.0.0-alpha6",

public/templates/artists/_show_layout.html

@@ -1,7 +1,7 @@
 <div class="resource-details artist-details" ng-class="::{'x-archived': artist.is_archived}">
 
-    <header ng-style="{'background-image': 'linear-gradient(180deg, ' + artist.avatar_colors[0] + ' 15%, ' + artist.avatar_colors[1] + ' 100%)'}">
-        <img src="{{artist.avatars.normal}}">
+    <header ng-style="headerStyle">
+        <img src="{{artist.avatars.normal}}" id="avatar">
         <div class="artist-right">
             <h1>{{artist.name}}<i class="material-icons admin-star" ng-show="::artist.isAdmin" data-title="Admin" bs-tooltip>verified_user</i></h1>
             <p class="follower-count">
@@ -11,7 +11,7 @@
                      'other': '{} followers'}">
                 </ng-pluralize>
             </p>
-            <a href="#" class="btn btn-default" ng-class="{'btn-primary': !artist.user_data.is_following}" ng-show="auth.isLogged && auth.user.id != artist.id" pfm-eat-click ng-click="toggleFollow()">
+            <a href="#" class="btn btn-default btn-flat" ng-class="{'btn-primary': !artist.user_data.is_following}" ng-show="auth.isLogged && auth.user.id != artist.id" pfm-eat-click ng-click="toggleFollow()">
                 <span ng-if="!artist.user_data.is_following">Follow</span>
                 <span ng-if="artist.user_data.is_following">Following!</span>
             </a>

resources/assets/scripts/app/app.coffee

@@ -42,6 +42,7 @@ require 'script!../base/marked'
 require 'script!../base/moment'
 require '../base/soundmanager2-nodebug'
 require 'script!../base/tumblr'
+require 'color-thief';
 require 'angular-strap'
 # Just ignore this, blame webpack
 require '../../../../node_modules/angular-strap/dist/angular-strap.tpl'

resources/assets/scripts/app/controllers/application.coffee

@@ -42,7 +42,7 @@ module.exports = angular.module('ponyfm').controller "application", [
                 notifications.markAllAsRead()
 
             $scope.notifActive = false
-        
+
         $scope.notifPulloutToggle = () ->
             $scope.notifActive = !$scope.notifActive
 
@@ -98,6 +98,9 @@ module.exports = angular.module('ponyfm').controller "application", [
             $scope.notifActive = false
             $scope.isPinnedPlaylistSelected = false
 
+            if oldState.name.indexOf('content.artist.') != -1 && newState.name.indexOf('content.artist.') == -1
+                $('.top-bar').css('background': '')
+
             if newState.name == 'content.playlist'
                 $scope.isPinnedPlaylistSelected = playlists.isPlaylistPinned newParams.id
 

resources/assets/scripts/app/controllers/artist.coffee

@@ -21,13 +21,144 @@ window.pfm.preloaders['artist'] = [
 ]
 
 module.exports = angular.module('ponyfm').controller "artist", [
-    '$scope', 'artists', '$state', 'follow'
-    ($scope, artists, $state, follow) ->
+    '$scope', 'artists', '$state', 'follow', '$rootScope'
+    ($scope, artists, $state, follow, $rootScope) ->
         updateArtist = (force = false) ->
             artists.fetch($state.params.slug, force)
                 .done (artistResponse) ->
                     $scope.artist = artistResponse.artist
 
+                    tempImg = document.createElement('img')
+                    tempImg.setAttribute 'src', artistResponse.artist.avatars.small
+                    tempImg.addEventListener 'load', ->
+                        colorThief = new ColorThief();
+                        palette = colorThief.getPalette(tempImg, 2)
+                        $('.top-bar').css('background': selectHeaderColour(palette[0], palette[1]))
+                        $scope.headerStyle = {'background-image': createGradient(palette[0], palette[1])}
+                        $scope.$apply()
+
+        rgbArrayToCss = (array) ->
+            'rgb(' + array[0] + ',' + array[1] + ',' + array[2] + ')'
+
+        hslArrayToCss = (array) ->
+            'hsl(' + array[0] + ',' + array[1] + '%,' + array[2] + '%)'
+
+        dimColor = (colour) ->
+            hsl = rgbToHsl(colour)
+
+            if hsl[2] >= 50
+                hsl[2] = 50
+                if hsl[1] <= 20
+                    hsl[1] = 30
+                return hslToRgb(hsl)
+            else
+                return colour
+
+        createGradient = (vib, dark) ->
+            if $(window).width() <= 480
+                'linear-gradient(180deg, ' + rgbArrayToCss(vib) + ' 5%, ' + rgbArrayToCss(dimColor(dark)) + ' 95%)'
+            else
+                'linear-gradient(170deg, ' + rgbArrayToCss(vib) + ' 15%, ' + rgbArrayToCss(dark) + ' 110%)'
+
+        findHighestSaturation = (hsl1, hsl2) ->
+            if hsl1[1] > hsl2[1]
+                return hsl1
+            else
+                return hsl2
+
+        findBestColour = (hsl1, hsl2) ->
+            maxLumin = 60
+            mid = 40
+            best = undefined
+
+            if Math.abs(hsl1[2] - mid) < Math.abs(hsl2[2] - mid)
+                best = hsl1
+            else
+                best = findHighestSaturation(hsl1, hsl2)
+
+            if best[2] > maxLumin
+                best[2] = maxLumin
+
+            return best
+
+
+        selectHeaderColour = (colour1, colour2) ->
+            hsl1 = rgbToHsl(colour1)
+            hsl2 = rgbToHsl(colour2)
+            out = rgbArrayToCss(hslToRgb(findBestColour(hsl1, hsl2)))
+            return out
+
+        rgbToHsl = (rgbArr) ->
+            r1 = rgbArr[0] / 255
+            g1 = rgbArr[1] / 255
+            b1 = rgbArr[2] / 255
+            maxColor = Math.max(r1, g1, b1)
+            minColor = Math.min(r1, g1, b1)
+            L = (maxColor + minColor) / 2
+            S = 0
+            H = 0
+            if maxColor != minColor
+                if L < 0.5
+                    S = (maxColor - minColor) / (maxColor + minColor)
+                else
+                    S = (maxColor - minColor) / (2.0 - maxColor - minColor)
+                if r1 == maxColor
+                    H = (g1 - b1) / (maxColor - minColor)
+                else if g1 == maxColor
+                    H = 2.0 + (b1 - r1) / (maxColor - minColor)
+                else
+                    H = 4.0 + (r1 - g1) / (maxColor - minColor)
+            L = L * 100
+            S = S * 100
+            H = H * 60
+            if H < 0
+                H += 360
+
+            round = (value, decimals) ->
+                Number Math.round(value + 'e' + decimals) + 'e-' + decimals
+
+            [round(H, 6), round(S, 6), round(L, 6)]
+
+        toPercent = (amount, limit) ->
+            amount / limit
+
+        hueToRgb = (p, q, t) ->
+            if t < 0
+                t += 1
+            if t > 1
+                t -= 1
+            if t < 1 / 6
+                return p + (q - p) * 6 * t
+            if t < 1 / 2
+                return q
+            if t < 2 / 3
+                return p + (q - p) * (2 / 3 - t) * 6
+
+            p
+
+        hslToRgb = (bits) ->
+            rgb = []
+            v = undefined
+            q = undefined
+            p = undefined
+            hsl =
+                h: toPercent(parseInt(bits[0], 10) % 360, 360)
+                s: toPercent(parseInt(bits[1], 10) % 101, 100)
+                l: toPercent(parseInt(bits[2], 10) % 101, 100)
+            if hsl.s == 0
+                v = parseInt(Math.round(255 * hsl.l))
+                rgb[0] = v
+                rgb[1] = v
+                rgb[2] = v
+            else
+                q = if hsl.l < 0.5 then hsl.l * (1 + hsl.s) else hsl.l + hsl.s - (hsl.l * hsl.s)
+                p = 2 * hsl.l - q
+                rgb[0] = parseInt((hueToRgb(p, q, hsl.h + 1 / 3) * 256).toFixed(0), 10)
+                rgb[1] = parseInt((hueToRgb(p, q, hsl.h) * 256).toFixed(0), 10)
+                rgb[2] = parseInt((hueToRgb(p, q, hsl.h - (1 / 3)) * 256).toFixed(0), 10)
+
+            rgb
+
         $scope.toggleFollow = () ->
             follow.toggle('artist', $scope.artist.id).then (res) ->
                 $scope.artist.user_data.is_following = res.is_followed

resources/assets/styles/components/components.less

@@ -236,6 +236,11 @@ html body {
 
     &.btn-flat {
       box-shadow: 0 0 0 transparent !important;
+      background-color: transparent;
+
+      &.btn-default:hover {
+        background-color: rgba(255, 255, 255, 0.5);
+      }
     }
   }
 

resources/assets/styles/components/search.less

@@ -28,7 +28,7 @@
 }
 
 input.search-input {
-  background: lighten(@pfm-logo-purple, 10%);
+  background: rgba(255,255,255,0.15);
   color: #fff;
   border: 0;
   font-size: 13px;

resources/assets/styles/content.less

@@ -160,9 +160,10 @@
 
   &.artist-details {
     > header {
-      padding: 15px;
       background-size: cover;
       background-position: center;
+      padding: 25px;
+      margin: -15px -15px 10px;
 
       > img {
         width: 150px;
@@ -229,7 +230,7 @@
 
   > header {
     padding: 5px;
-    background: #eee;
+    background: #ddd;
     overflow: hidden;
     margin-bottom: 10px;
 

resources/assets/styles/embed.less

@@ -18,7 +18,6 @@
 
 @import 'https://fonts.googleapis.com/css?family=Material+Icons';
 @import 'base/bootstrap/bootstrap';
-@import 'base/font-awesome/font-awesome';
 @import 'variables';
 @import 'mixins';
 

resources/assets/styles/layout.less

@@ -89,7 +89,6 @@ header {
     width: (@pfm-sidebar-size);
     height: 64px;
     line-height: 42px;
-    background: @pfm-logo-purple;
     color: #fff;
     font-size: 24pt;
     font-weight: lighter;
@@ -99,7 +98,7 @@ header {
     position: relative;
 
     &:hover {
-      background: darken(@pfm-logo-purple, 15%);
+      background: rgba(0,0,0,0.3);
       color: #fff;
       text-decoration: none;
     }
@@ -267,6 +266,7 @@ header {
     height: @pfm-top-bar-size;
     width: 100%;
     top: 0;
+    transition: background 0.5s @swift-ease-in-out;
     .material-shadow(1);
 
     .burger-wrapper {

resources/assets/styles/mobile.less

@@ -216,8 +216,8 @@
     }
 
     > header {
-      margin-bottom: 0px;
-      padding-bottom: 40px !important;
+      margin: 0 !important;
+      padding: 20px 0 40px !important;
 
       > img {
         float: none !important;

webpack.base.config.js

@@ -13,7 +13,8 @@ module.exports = {
     plugins: [
         new webpack.ProvidePlugin({
             $: "jquery",
-            jQuery: "jquery"
+            jQuery: "jquery",
+            ColorThief: "color-thief"
         }),
         new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/)
     ],