Added popover component

Closes #2418, #2714
Ref #2446, #2565

- Added and injected `popover` service to globally control popovers
- Added `gh-popover-button` component
- Added `popover-mixin` for popover and popover-buttons to mixin
- Added body-event-listener mixin for popover service to watch for body
  clicks with
- Post settings and post save button both now use `gh-popover`
- Added hacks to `ember-hacks.css` to make popovers work until ghost-ui
  consolidates functionality

core/client/assets/css/ember-hacks.css

@@ -15,17 +15,22 @@
     transition: none;
 }
 
-/*
-  By default nav menu should be displayed as it's visibility is controllerd
-  by GhostPopover
-*/
-.navbar .subnav ul {
-    display: block;
-}
-
 /*
   Styles for GhostPopoverComponent
- */
+
+  hack the user menu and for the post-save button popup,
+  until ghost-ui gets a rehaul
+*/
+.navbar .subnav ul.ghost-popover,
+#publish-bar .splitbutton-save .editor-options.ghost-popover,
+#publish-bar .splitbutton-delete .editor-options.ghost-popover{
+   display:  none;
+}
+#publish-bar .splitbutton-save .editor-options.ghost-popover.open,
+#publish-bar .splitbutton-delete .editor-options.ghost-popover.open,
+.navbar .subnav ul.ghost-popover.open {
+   display:  block;
+}
 
 .ghost-popover {
     display: none;
@@ -34,11 +39,14 @@
 .ghost-popover.open {
     display: block;
 }
+
+
+/* Fade in animation */
 .fade-in {
-    animation: fadein 0.5s;
+    -o-animation: fadein 0.5s; /* Opera */
     -moz-animation: fadein 0.5s; /* Firefox */
     -webkit-animation: fadein 0.5s; /* Safari and Chrome */
-    -o-animation: fadein 0.5s; /* Opera */
+    animation: fadein 0.5s;
 }
 @keyframes fadein {
     from {
@@ -48,6 +56,14 @@
         opacity:1;
     }
 }
+@-o-keyframes fadein { /* Opera */
+    from {
+        opacity:0;
+    }
+    to {
+        opacity: 1;
+    }
+}
 @-moz-keyframes fadein { /* Firefox */
     from {
         opacity:0;
@@ -64,11 +80,3 @@
         opacity:1;
     }
 }
-@-o-keyframes fadein { /* Opera */
-    from {
-        opacity:0;
-    }
-    to {
-        opacity: 1;
-    }
-}

core/client/components/gh-popover-button.js

@@ -0,0 +1,14 @@
+import PopoverMixin from 'ghost/mixins/popover-mixin';
+
+var PopoverButton = Ember.Component.extend(PopoverMixin, {
+    tagName: "button",
+    /*matches with the popover this button toggles*/
+    popoverName: null,
+    /*Notify popover service this popover should be toggled*/
+    click: function (event) {
+        this._super(event);
+        this.get('popover').togglePopover(this.get('popoverName'));
+    }
+});
+
+export default PopoverButton;

core/client/components/gh-popover.js

@@ -1,8 +1,46 @@
+import PopoverMixin from 'ghost/mixins/popover-mixin';
 
-var GhostPopover = Ember.Component.extend({
-    classNames: 'ghost-popover',
+var GhostPopover = Ember.Component.extend(PopoverMixin, {
+    classNames: 'ghost-popover fade-in',
     classNameBindings: ['open'],
-    open: false
+    name: null,
+    closeOnClick: false,
+    didInsertElement: function () {
+        this._super();
+
+        var popoverService = this.get('popover');
+
+        popoverService.on('close', this, this.close);
+        popoverService.on('toggle', this, this.toggle);
+    },
+    willDestroyElement: function () {
+        this._super();
+        var popoverService = this.get('popover');
+
+        popoverService.off('close', this, this.close);
+        popoverService.off('toggle', this, this.toggle);
+    },
+    click: function (event) {
+        this._super(event);
+        if (this.get('closeOnClick')) {
+            return this.close();
+        }
+    },
+    close: function () {
+        return this.set('open', false);
+    },
+    toggle: function (options) {
+        /*
+        Close all popovers whose button was not clicked,
+        and toggle the actual target.
+        */
+        var targetPopoverName = options.target;
+        if (this.get('name') === targetPopoverName) {
+            this.toggleProperty('open');
+        } else {
+            this.close();
+        }
+    }
 });
 
-export default GhostPopover;
+export default GhostPopover;

core/client/initializers/popover.js

@@ -0,0 +1,25 @@
+import BodyEventListener from 'ghost/mixins/body-event-listener';
+
+var PopoverService = Ember.Object.extend(Ember.Evented, BodyEventListener, {
+    bodyClick: function (event) {
+        /*jshint unused:false */
+        this.closePopovers();
+    },
+    closePopovers: function () {
+        this.trigger('close');
+    },
+    togglePopover: function (popoverName) {
+        this.trigger('toggle', {target: popoverName});
+    }
+});
+
+export default {
+    name: 'popover',
+
+    initialize: function (container, application) {
+        application.register('popover:service', PopoverService);
+
+        application.inject('component:gh-popover', 'popover', 'popover:service');
+        application.inject('component:gh-popover-button', 'popover', 'popover:service');
+    }
+};

core/client/mixins/body-event-listener.js

@@ -0,0 +1,38 @@
+/*
+Code modified from Addepar/ember-widgets
+https://github.com/Addepar/ember-widgets/blob/master/src/mixins.coffee#L39
+*/
+var BodyEventListener = Ember.Mixin.create({
+    bodyElementSelector: 'html',
+    bodyClick: Ember.K,
+    init: function () {
+        this._super();
+        return Ember.run.next(this, this._setupDocumentHandlers);
+    },
+    willDestroy: function () {
+        this._super();
+        return this._removeDocumentHandlers();
+    },
+    _setupDocumentHandlers: function () {
+        if (this._clickHandler) {
+            return;
+        }
+        var self = this;
+        this._clickHandler = function () {
+            return self.bodyClick();
+        };
+        return $(this.get('bodyElementSelector')).on('click', this._clickHandler);
+    },
+    _removeDocumentHandlers: function () {
+        $(this.get('bodyElementSelector')).off('click', this._clickHandler);
+        this._clickHandler = null;
+    },
+    /* 
+    http://stackoverflow.com/questions/152975/how-to-detect-a-click-outside-an-element
+    */
+    click: function (event) {
+        return event.stopPropagation();
+    }
+});
+
+export default BodyEventListener;

core/client/mixins/popover-mixin.js

@@ -0,0 +1,11 @@
+/*
+  Popovers and their buttons are evented and do not propagate clicks.
+*/
+var PopoverMixin = Ember.Mixin.create(Ember.Evented, {
+    click: function (event) {
+        this._super(event);
+        return event.stopPropagation();
+    }
+});
+
+export default PopoverMixin;

core/client/templates/-floating-header.hbs

@@ -14,8 +14,11 @@
         {{#link-to "editor" this class="post-edit" title="Edit Post"}}
             <span class="hidden">Edit Post</span>
         {{/link-to}}
-        <a class="post-settings" title="Post Settings" {{action 'editSettings'}}><span class="hidden">Post Settings</span></a>
-        <!-- @TODO use Ghost Popover (#2565) --->
-        {{view "post-settings-menu-view"}}
+        {{#gh-popover-button popoverName="post-settings-menu" tagName="a" classNames="post-settings" title="Post Settings"}}
+            <span class="hidden">Post Settings</span>
+        {{/gh-popover-button}}
+        {{#gh-popover name="post-settings-menu" classNames="post-settings-menu menu-drop-right"}}
+            {{view "post-settings-menu-view"}}
+        {{/gh-popover}}
     </section>
 </header>

core/client/templates/-navbar.hbs

@@ -9,23 +9,21 @@
             {{gh-activating-list-item route="settings" title="Settings" classNames="settings"}}
 
             <li id="usermenu" class="usermenu subnav">
-                <a href="javascript:void(0);" {{action 'toggleMenu'}} class="dropdown">
+                {{#gh-popover-button popoverName="user-menu" tagName="a" href="#" classNames="dropdown"}}
                     {{#if user.image}}
                     <img class="avatar" {{bind-attr src="user.image"}} alt="Avatar" />
                     {{else}}
                     <img class="avatar" src="/shared/img/user-image.png" alt="Avatar" />
                     {{/if}}
                     <span class="name">{{user.name}}</span>
-                </a>
+                {{/gh-popover-button}}
                 {{!-- @TODO: add functionality to allow for dropdown to work --}}
-                {{#gh-popover open=showMenu}}
-                    <ul class="overlay">
+                {{#gh-popover tagName="ul" classNames="overlay" name="user-menu" closeOnClick="true"}}
                         <li class="usermenu-profile">{{#link-to 'settings.user'}}Your Profile{{/link-to}}</li>
                         <li class="divider"></li>
                         <li class="usermenu-help"><a href="http://ghost.org/forum/">Help / Support</a></li>
                         <li class="divider"></li>
                         <li class="usermenu-signout"><a href="#">Sign Out</a></li>
-                    </ul>
                 {{/gh-popover}}
             </li>
         </ul>

core/client/templates/-publish-bar.hbs

@@ -14,9 +14,12 @@
         <div class="right">
 
             <section id="entry-controls">
-                <a class="post-settings" title="Post Settings" {{action 'editSettings'}}><span class="hidden">Post Settings</span></a>
-                <!-- @TODO Use Ghost Popover (#2565) and style arrow down -->
-                {{view "post-settings-menu-view"}}
+                {{#gh-popover-button popoverName="post-settings-menu" tagName="a" href="#" classNames="post-settings" title="Post Settings"}}
+                    <span class="hidden">Post Settings</span>
+                {{/gh-popover-button}}
+                {{#gh-popover name="post-settings-menu" classNames="post-settings-menu menu-right"}}
+                    {{view "post-settings-menu-view"}}
+                {{/gh-popover}}
             </section>
 
             {{view "editor-save-button" id="entry-actions"}}

core/client/templates/editor-save-button.hbs

@@ -1,12 +1,14 @@
-<button type="button" {{action "save"}} {{bind-attr class="view.isDangerous:button-delete:button-save :js-publish-button" }}>{{view.save-text}}</button>
-<button {{action 'viewSaveTypes'}} {{bind-attr class="controller.isViewingSaveTypes:active :options :up" }} title="Post Settings"><span class="hidden">Post Settings</span>
+<button type="button" {{action "save"}} {{bind-attr class="view.isDangerous:button-delete:button-save :js-publish-button" }}>
+    {{view.save-text}}
 </button>
-{{!-- @TODO: implement popover --}}
-<ul {{bind-attr class="controller.isViewingSaveTypes::hidden :editor-options :overlay" }}>
-    <li {{bind-attr class="controller.willPublish:active"}}>
-        <a {{action "setSaveType" "publish"}} href="#">{{view.publish-text}}</a>
+{{#gh-popover-button popoverName="post-save-menu" classNameBindings="open:active :options :up" title="Post Settings"}}
+    <span class="hidden">Post Settings</span>
+{{/gh-popover-button}} 
+{{#gh-popover name="post-save-menu" closeOnClick="true" tagName="ul" classNames="editor-options overlay" publishTextBinding=view.publish-text draftTextBinding=view.draft-text}}
+    <li {{bind-attr class="controller.willPublish:active" }}>
+        <a {{action "setSaveType" "publish"}} href="#">{{view.publishText}}</a>
     </li>
-    <li {{bind-attr class="controller.willPublish::active"}}>
-        <a {{action "setSaveType" "draft"}} href="#">{{view.draft-text}}</a>
+    <li {{bind-attr class="controller.willPublish::active" }}>
+        <a {{action "setSaveType" "draft"}} href="#">{{view.draftText}}</a>
     </li>
-</ul>
+{{/gh-popover}}

core/client/views/post-settings-menu-view.js

@@ -3,13 +3,7 @@ import {formatDate} from 'ghost/utils/date-formatting';
 
 var PostSettingsMenuView = Ember.View.extend({
     templateName: 'post-settings-menu',
-    classNames: ['post-settings-menu', 'menu-drop-right', 'overlay'],
-    classNameBindings: ['controller.isEditingSettings::hidden'],
     publishedAtBinding: Ember.Binding.oneWay('controller.publishedAt'),
-    click: function (event) {
-        //Stop click propagation to prevent window closing
-        event.stopPropagation();
-    },
     datePlaceholder: function () {
         return formatDate(moment());
     }.property('controller.publishedAt')