Merge branch 'master' into nwalke-update_site_color

[bookstack] / app / Http / Controllers / SettingController.php

diff --git a/app/Http/Controllers/SettingController.php b/app/Http/Controllers/SettingController.php
index c43e6e399df24ec369bb792f777adc663b64b58c..dfda2b6cf211f367755e9914225115a053c45522 100644 (file)
--- a/app/Http/Controllers/SettingController.php
+++ b/app/Http/Controllers/SettingController.php
@@ -38,6 +38,9 @@ class SettingController extends Controller
         foreach($request->all() as $name => $value) {
             if(strpos($name, 'setting-') !== 0) continue;
             $key = str_replace('setting-', '', trim($name));
+            if($key == 'app-color') {
+                Setting::put('app-color-rgba', $this->hex2rgba($value, 0.15));
+            }
             Setting::put($key, $value);
         }
 
@@ -45,4 +48,51 @@ class SettingController extends Controller
         return redirect('/settings');
     }
 
+    /**
+     * Adapted from http://mekshq.com/how-to-convert-hexadecimal-color-code-to-rgb-or-rgba-using-php/
+     * Converts a hex color code in to an RGBA string.
+     *
+     * @param string $color
+     * @param float|boolean $opacity
+     * @return boolean|string
+     */
+    protected function hex2rgba($color, $opacity = false)
+    {
+        // Return false if no color provided
+        if(empty($color)) {
+            return false;
+        }
+        // Trim any whitespace
+        $color = trim($color);
+
+        // Sanitize $color if "#" is provided
+        if($color[0] == '#' ) {
+            $color = substr($color, 1);
+        }
+
+        // Check if color has 6 or 3 characters and get values
+        if(strlen($color) == 6) {
+            $hex = array( $color[0] . $color[1], $color[2] . $color[3], $color[4] . $color[5] );
+        } elseif( strlen( $color ) == 3 ) {
+            $hex = array( $color[0] . $color[0], $color[1] . $color[1], $color[2] . $color[2] );
+        } else {
+            return false;
+        }
+
+        // Convert hexadec to rgb
+        $rgb =  array_map('hexdec', $hex);
+
+        // Check if opacity is set(rgba or rgb)
+        if($opacity) {
+            if(abs($opacity) > 1)
+                $opacity = 1.0;
+            $output = 'rgba('.implode(",",$rgb).','.$opacity.')';
+        } else {
+            $output = 'rgb('.implode(",",$rgb).')';
+        }
+
+        // Return rgb(a) color string
+        return $output;
+    }
+
 }