Theming: Add preview for login screen

apps/theming/css/settings-admin.css

@@ -32,3 +32,18 @@
 div#theming_settings_msg {
     margin-left: 10px;
 }
+
+#theming-preview {
+    width: 230px;
+    height: 140px;
+    background-size: cover;
+    background-position: center center;
+    text-align: center;
+    margin-left: 93px;
+}
+
+#theming-preview img {
+    max-width: 20%;
+    max-height: 20%;
+    margin-top: 20px;
+}

apps/theming/js/settings-admin.js

@@ -68,7 +68,7 @@ function preview(setting, value) {
 			textColor = "#ffffff";
 			icon = 'caret';
 		}
-		if (luminance>0.8) {
+		if (luminance > 0.8) {
 			elementColor = '#555555';
 		}
 
@@ -87,16 +87,27 @@ function preview(setting, value) {
 			'background-image: url(\'data:image/svg+xml;base64,' + generateRadioButton(elementColor) + '\'); }'
 		);
 	}
+
+	var timestamp = new Date().getTime();
 	if (setting === 'logoMime') {
-		console.log(setting);
 		var logos = document.getElementsByClassName('logo-icon');
-		var timestamp = new Date().getTime();
+		var previewImageLogo = document.getElementById('theming-preview-logo');
 		if (value !== '') {
 			logos[0].style.backgroundImage = "url('" + OC.generateUrl('/apps/theming/logo') + "?v" + timestamp + "')";
 			logos[0].style.backgroundSize = "contain";
+			previewImageLogo.src = OC.generateUrl('/apps/theming/logo') + "?v" + timestamp;
 		} else {
-			logos[0].style.backgroundImage = "url('" + OC.getRootPath() + '/core/img/logo-icon.svg?v' + timestamp +"')";
+			logos[0].style.backgroundImage = "url('" + OC.getRootPath() + '/core/img/logo-icon.svg?v' + timestamp + "')";
 			logos[0].style.backgroundSize = "contain";
+			previewImageLogo.src = OC.getRootPath() + '/core/img/logo-icon.svg?v' + timestamp;
+		}
+	}
+	if (setting === 'backgroundMime') {
+		var previewImage = document.getElementById('theming-preview');
+		if (value !== '') {
+			previewImage.style.backgroundImage = "url('" + OC.generateUrl('/apps/theming/loginbackground') + "?v" + timestamp + "')";
+		} else {
+			previewImage.style.backgroundImage = "url('" + OC.getRootPath() + '/core/img/background.jpg?v' + timestamp + "')";
 		}
 	}
 }

apps/theming/lib/Settings/Admin.php

@@ -71,6 +71,10 @@ class Admin implements ISettings {
 			'url'             => $this->themingDefaults->getBaseUrl(),
 			'slogan'          => $this->themingDefaults->getSlogan(),
 			'color'           => $this->themingDefaults->getMailHeaderColor(),
+			'logo'            => $this->themingDefaults->getLogo(),
+			'logoMime'        => $this->config->getAppValue('theming', 'logoMime', ''),
+			'background'      => $this->themingDefaults->getBackground(),
+			'backgroundMime'  => $this->config->getAppValue('theming', 'backgroundMime', ''),
 			'uploadLogoRoute' => $path,
 		];
 

apps/theming/templates/settings-admin.php

@@ -73,6 +73,9 @@ style('theming', 'settings-admin');
 			<label for="upload-login-background" class="button icon-upload svg" id="upload-login-background" title="<?php p($l->t("Upload new login background")) ?>"></label>
 			<span data-setting="backgroundMime" data-toggle="tooltip" data-original-title="<?php p($l->t('reset to default')); ?>" class="theme-undo icon icon-history"></span>
 		</form>
-		</p>
+	</p>
+		<div id="theming-preview" style="background-color:<?php p($_['color']);?>; background-image:url(<?php p($_['background']); ?>);">
+			<img src="<?php p($_['logo']); ?>" id="theming-preview-logo" />
+		</div>
 	<?php } ?>
 </div>

apps/theming/tests/Settings/AdminTest.php

@@ -93,6 +93,10 @@ class AdminTest extends TestCase {
 			'slogan' => 'MySlogan',
 			'color' => '#fff',
 			'uploadLogoRoute' => '/my/route',
+			'logo' => null,
+			'logoMime' => null,
+			'background' => null,
+			'backgroundMime' => null,
 		];
 
 		$expected = new TemplateResponse('theming', 'settings-admin', $params, '');
@@ -139,6 +143,10 @@ class AdminTest extends TestCase {
 			'slogan' => 'MySlogan',
 			'color' => '#fff',
 			'uploadLogoRoute' => '/my/route',
+			'logo' => null,
+			'logoMime' => null,
+			'background' => null,
+			'backgroundMime' => null,
 		];
 
 		$expected = new TemplateResponse('theming', 'settings-admin', $params, '');