ux: Add CTA for empty lists

public/app/core/angular_wrappers.ts

 import { react2AngularDirective } from 'app/core/utils/react2angular';
 import { PasswordStrength } from './components/PasswordStrength';
 import PageHeader from './components/PageHeader';
+import EmptyListCTA from './components/EmptyListCTA/EmptyListCTA';
 
 export function registerAngularDirectives() {
 
   react2AngularDirective('passwordStrength', PasswordStrength, ['password']);
   react2AngularDirective('pageHeader', PageHeader, ['model', "noTabs"]);
+  react2AngularDirective('emptyListCta', EmptyListCTA, ['model']);
 
 }

public/app/core/components/EmptyListCTA/EmptyListCTA.jest.tsx

+import React from 'react';
+import renderer from 'react-test-renderer';
+import EmptyListCTA from './EmptyListCTA';
+
+const model = {
+    title: 'Title',
+    buttonIcon: 'ga css class',
+    buttonLink: 'http://url/to/destination',
+    buttonTitle: 'Click me',
+    proTip: 'This is a tip',
+    proTipLink: 'http://url/to/tip/destination',
+    proTipLinkTitle: 'Learn more',
+    proTipTarget: '_blank'
+};
+
+describe('CollorPalette', () => {
+
+    it('renders correctly', () => {
+    const tree = renderer.create(<EmptyListCTA model={model} />).toJSON();
+    expect(tree).toMatchSnapshot();
+  });
+});

public/app/core/components/EmptyListCTA/EmptyListCTA.tsx

+import React, { Component } from 'react';
+
+export interface IProps {
+    model: any;
+}
+
+class EmptyListCTA extends Component<IProps, any> {
+    render() {
+        const {
+            title,
+            buttonIcon,
+            buttonLink,
+            buttonTitle,
+            proTip,
+            proTipLink,
+            proTipLinkTitle,
+            proTipTarget
+        } = this.props.model;
+        return (
+            <div className="empty-list-cta p-t-2 p-b-1">
+                <div className="empty-list-cta__title">{title}</div>
+                <a href={buttonLink} className="empty-list-cta__button btn btn-xlarge btn-success"><i className={buttonIcon} />{buttonTitle}</a>
+                <div className="empty-list-cta__pro-tip">
+                    <i className="fa fa-rocket" /> ProTip: {proTip}
+                    <a className="text-link empty-list-cta__pro-tip-link"
+                        href={proTipLink}
+                        target={proTipTarget}>{proTipLinkTitle}</a>
+                </div>
+            </div>
+        );
+    }
+}
+
+export default EmptyListCTA;

public/app/core/components/EmptyListCTA/__snapshots__/EmptyListCTA.jest.tsx.snap

+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`CollorPalette renders correctly 1`] = `
+<div
+  className="empty-list-cta p-t-2 p-b-1"
+>
+  <div
+    className="empty-list-cta__title"
+  >
+    Title
+  </div>
+  <a
+    className="empty-list-cta__button btn btn-xlarge btn-success"
+    href="http://url/to/destination"
+  >
+    <i
+      className="ga css class"
+    />
+    Click me
+  </a>
+  <div
+    className="empty-list-cta__pro-tip"
+  >
+    <i
+      className="fa fa-rocket"
+    />
+     ProTip: 
+    This is a tip
+    <a
+      className="text-link empty-list-cta__pro-tip-link"
+      href="http://url/to/tip/destination"
+      target="_blank"
+    >
+      Learn more
+    </a>
+  </div>
+</div>
+`;

public/app/features/plugins/partials/ds_list.html

 <page-header model="ctrl.navModel"></page-header>
 
 <div class="page-container page-body">
+	<div ng-if="ctrl.datasources.length">
 		<div class="page-action-bar">
 			<div class="page-action-bar__spacer"></div>
 			<a class="page-header__cta btn btn-success" href="datasources/new">
@@ -39,8 +40,18 @@
 				</li>
 			</ol>
 		</section>
+	</div>
 
 	<div ng-if="ctrl.datasources.length === 0">
-		<em>No data sources defined</em>
+		<empty-list-cta model="{
+			title: 'There are no data sources defined yet',
+			buttonIcon: 'gicon gicon-dashboard-new',
+			buttonLink: '/datasources/new',
+			buttonTitle: 'Add data source',
+			proTip: 'You can also define data sources through configuration files.',
+			proTipLink: 'http://docs.grafana.org/administration/provisioning/#datasources',
+			proTipLinkTitle: 'Learn more',
+			proTipTarget: '_blank'
+		}" />
 	</div>
 </div>

public/sass/_grafana.scss

@@ -86,6 +86,7 @@
 @import "components/dashboard_grid";
 @import "components/dashboard_list";
 @import "components/page_header";
+@import "components/empty_list_cta";
 
 
 // PAGES

public/sass/_variables.scss

@@ -218,8 +218,11 @@ $btn-font-weight:                500 !default;
 $btn-padding-x-sm:               .5rem !default;
 $btn-padding-y-sm:               .25rem !default;
 
-$btn-padding-x-lg:               1.5rem !default;
-$btn-padding-y-lg:               .75rem !default;
+$btn-padding-x-lg:               21px !default;
+$btn-padding-y-lg:               11px !default;
+
+$btn-padding-x-xl:               21px !default;
+$btn-padding-y-xl:               11px !default;
 
 $btn-border-radius:              3px;
 

public/sass/base/_type.scss

@@ -48,6 +48,8 @@ a.text-success:hover,
 a.text-success:focus { color: darken($success-text-color, 10%); }
 a { cursor: pointer; }
 
+.text-link { text-decoration: underline; }
+
 a:focus {
   outline:0 none !important;
 }

public/sass/components/_buttons.scss

@@ -51,10 +51,21 @@
 
 // Button Sizes
 // --------------------------------------------------
+// XLarge
+.btn-xlarge {
+  @include button-size($btn-padding-y-xl, $btn-padding-x-xl, $font-size-lg, $btn-border-radius);
+  font-weight: normal;
+  padding-bottom: $btn-padding-y-xl - 3;
+  .gicon {
+    font-size: 31px;
+    margin-right: 1rem;
+  }
+}
 
 // Large
 .btn-large {
   @include button-size($btn-padding-y-lg, $btn-padding-x-lg, $font-size-lg, $btn-border-radius);
+  font-weight: normal;
 }
 
 .btn-small {

public/sass/components/_empty_list_cta.scss

+.empty-list-cta {
+    background-color: $search-filter-box-bg;
+    text-align: center;
+}
+
+.empty-list-cta__title {
+    padding-bottom: 30px;
+    font-style: italic;
+}
+
+.empty-list-cta__button {
+    margin-bottom: 50px;
+}
+
+.empty-list-cta__pro-tip {
+    padding-bottom: 20px;
+}
+
+.empty-list-cta__pro-tip-link {
+    margin-left: 5px;
+}
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