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AdminLte
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Merge pull request #3284 from danny007in/preloader-add

Preloader Added
REJack 4 years ago
parent
76de56d35a e932382f1b
commit
c104f19a0c
5 changed files with 49 additions and 0 deletions
Split View Show Diff Stats
  1. 8 0
      build/js/Layout.js
  2. 18 0
      build/scss/_layout.scss
  3. 1 0
      build/scss/_variables.scss
  4. 17 0
      docs/layout.md
  5. 5 0
      index.html

+ 8 - 0
build/js/Layout.js
View File 

@@ -26,6 +26,7 @@ const SELECTOR_FOOTER = '.main-footer'
 
 const SELECTOR_PUSHMENU_BTN = '[data-widget="pushmenu"]'
 
 const SELECTOR_LOGIN_BOX = '.login-box'
 
 const SELECTOR_REGISTER_BOX = '.register-box'
 
+const SELECTOR_PRELOADER = '.preloader'
 
 
 const CLASS_NAME_SIDEBAR_COLLAPSED = 'sidebar-collapse'
 
 const CLASS_NAME_SIDEBAR_FOCUSED = 'sidebar-focused'
 
@@ -173,6 +174,13 @@ class Layout {
 
     setTimeout(() => {
 
       $('body.hold-transition').removeClass('hold-transition')
 
     }, 50)
 
+    const $preloader = $(SELECTOR_PRELOADER)
 
+    if ($preloader) {
 
+      $preloader.css('height', 0)
 
+      setTimeout(() => {
 
+        $preloader.children().hide()
 
+      }, 200)
 
+    }
 
   }
 
 
   _max(numbers) {

+ 18 - 0
build/scss/_layout.scss
View File 

@@ -12,6 +12,20 @@ body,
 
   min-height: 100%;
 
 }
 
 
+.preloader {
 
+  display: flex;
 
+  align-items: center;
 
+  justify-content: center;
 
+  background-color: $main-bg;
 
+  height: 100vh;
 
+  width: 100%;
 
+  transition: height 200ms linear;
 
+  position: fixed;
 
+  left: 0;
 
+  top: 0;
 
+  z-index: $zindex-preloader;
 
+}
 
+
 
 .wrapper {
 
   position: relative;
 
 
@@ -669,4 +683,8 @@ body:not(.layout-fixed) {
 
       color: $white;
 
     }
 
   }
 
+  .preloader {
 
+    background-color: $dark;
 
+    color: $white;
 
+  }
 
 }

+ 1 - 0
build/scss/_variables.scss
View File 

@@ -170,6 +170,7 @@ $zindex-main-sidebar: $zindex-fixed + 8 !default;
 
 $zindex-main-footer: $zindex-fixed + 2 !default;
 
 $zindex-control-sidebar: $zindex-fixed + 1 !default;
 
 $zindex-toasts: $zindex-main-sidebar + 2 !default;
 
+$zindex-preloader: 9999 !default;
 
 
 // TRANSITIONS SETTINGS
 
 // --------------------------------------------------------

+ 17 - 0
docs/layout.md
View File 

@@ -48,6 +48,23 @@ You can also use the following classes for responsive changes with placing
 
 {: .quote-info}
 
 
 
+#### Preloader
 
+
 
+Preloader to avoid [https://github.com/ColorlibHQ/AdminLTE/discussions/3319](https://github.com/ColorlibHQ/AdminLTE/discussions/3319)
 
+
 
+```html
 
+<div class="wrapper">
 
+  <!-- Preloader -->
 
+  <div class="preloader">
 
+    <img src="dist/img/AdminLTELogo.png" alt="AdminLTELogo" height="60" width="60">
 
+  </div>
 
+</div>
 
+```
 
+
 
+- Preloader elements should be added inside `.wrapper` element.
 
+- You can replace image OR modify size OR include any preload items inside `.preloader` element.
 
+
 
+
 
 #### Dark Mode
 
 
 AdminLTE 3.1 provides a dark mode option. You can add in body tag:

+ 5 - 0
index.html
View File 

@@ -29,6 +29,11 @@
 
 <body class="hold-transition sidebar-mini layout-fixed">
 
 <div class="wrapper">
 
 
+  <!-- Preloader -->
 
+  <div class="preloader">
 
+    <img src="dist/img/AdminLTELogo.png" alt="AdminLTELogo" height="60" width="60">
 
+  </div>
 
+
 
   <!-- Navbar -->
 
   <nav class="main-header navbar navbar-expand navbar-white navbar-light">
 
     <!-- Left navbar links -->