From d7932d534e6e3194ef0695c4d09c2e3e70c19aec Mon Sep 17 00:00:00 2001
From: Kevin Ross <kevin.ross@alienfast.com>
Date: Tue, 19 Jan 2016 17:35:58 -0600
Subject: [PATCH] #822 initial implementation of drawer es6 component,
 fundamentally working.

---
 docs/examples/dashboard/index.html |  10 +-
 js/src/baseLayout.js               |  44 ++++++-
 js/src/bootstrapMaterialDesign.js  |   7 +-
 js/src/drawer.js                   | 166 +++++++++++++++++++++++++++
 js/src/drawerToggle.js             | 100 ----------------
 js/src/index.js                    |   2 +-
 js/src/layout.js                   | 177 +++--------------------------
 7 files changed, 231 insertions(+), 275 deletions(-)
 create mode 100644 js/src/drawer.js
 delete mode 100644 js/src/drawerToggle.js

diff --git a/docs/examples/dashboard/index.html b/docs/examples/dashboard/index.html
index 02741387..7576ef7a 100644
--- a/docs/examples/dashboard/index.html
+++ b/docs/examples/dashboard/index.html
@@ -20,7 +20,7 @@ js: example.js
       </div>
       -->
       <div class="navbar navbar-light bg-faded navbar-static-top">
-        <button class="navbar-toggler hidden-lg-up" type="button" data-toggle="collapse" data-target="#navbar-header">
+        <button class="navbar-toggler hidden-lg-up" type="button" data-toggle="drawer" data-target="#my-drawer">
           <span class="sr-only">Toggle drawer</span>
           <i class="material-icons">menu</i>
         </button>
@@ -59,7 +59,7 @@ js: example.js
 
           <li class="nav-item">
             <div class="mdb-form-group mdb-collapse-inline pull-xs-right">
-              <button class="btn mdb-btn-icon" for="search" data-toggle="collapse" data-target="#collapse-search" aria-expanded="false" aria-controls="collapse-search">
+              <button class="btn mdb-btn-icon" for="search" data-toggle="collapse" data-target="#collapse-search" aria-controls="collapse-search">
                 <i class="material-icons">search</i>
               </button>
               <span id="collapse-search" class="collapse">
@@ -69,7 +69,7 @@ js: example.js
           </li>
           <li class="nav-item">
             <div class="dropdown">
-              <button class="btn mdb-btn-icon btn-secondary dropdown-toggle" type="button" id="nav-extras-menu" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
+              <button class="btn mdb-btn-icon btn-secondary dropdown-toggle" type="button" id="nav-extras-menu" data-toggle="dropdown" aria-haspopup="true" >
                 <i class="material-icons">more_vert</i>
               </button>
               <div class="dropdown-menu dropdown-menu-right" aria-labelledby="nav-extras-menu">
@@ -83,13 +83,13 @@ js: example.js
       </div>
     </header>
 
-    <div class="mdb-layout-drawer">
+    <div id="my-drawer" class="mdb-layout-drawer">
       <header>
         <img src="images/user.jpg" class="avatar">
         <div class="account">
           <span>hello@example.com</span>
           <div class="dropdown">
-            <button class="btn mdb-btn-icon dropdown-toggle" type="button" id="nav-account-menu" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
+            <button class="btn mdb-btn-icon dropdown-toggle" type="button" id="nav-account-menu" data-toggle="dropdown" aria-haspopup="true">
               <i class="material-icons">arrow_drop_down</i>
             </button>
             <div class="dropdown-menu dropdown-menu-right" aria-labelledby="nav-account-menu">
diff --git a/js/src/baseLayout.js b/js/src/baseLayout.js
index 0699f46f..dc5950fc 100644
--- a/js/src/baseLayout.js
+++ b/js/src/baseLayout.js
@@ -4,14 +4,22 @@ import Util from './util'
 const BaseLayout = (($) => {
 
   const ClassName = {
-    CONTAINER: 'mdb-form-group'
+    CONTAINER: 'mdb-layout-container',
+    BACKDROP: `mdb-layout-backdrop`
   }
 
   const Selector = {
-    CONTAINER: `.${ClassName.CONTAINER}`
+    CONTAINER: `.${ClassName.CONTAINER}`,
+    BACKDROP: `.${ClassName.BACKDROP}`
   }
 
-  const Default = {}
+  const Default = {
+    backdrop: {
+      create: true,
+      required: true,
+      template: `<div class="${ClassName.BACKDROP}"></div>`
+    }
+  }
 
   /**
    * ------------------------------------------------------------------------
@@ -22,17 +30,45 @@ const BaseLayout = (($) => {
 
     constructor($element, config, properties = {}) {
       super($element, $.extend(true, {}, Default, config), properties)
+
+      this.$container = this.findContainer(true)
+      this.$backdrop = this.resolveBackdrop()
     }
 
     dispose(dataKey) {
       super.dispose(dataKey)
+      this.$container = null
+      this.$backdrop = null
     }
 
     // ------------------------------------------------------------------------
     // protected
 
+    // Will add mdb-layout-backdrop to mdb-layout-container if necessary
+    resolveBackdrop() {
+      let bd = this.findBackdrop(false)
+      if (bd === undefined || bd.length === 0) {
+        if (this.config.backdrop.create) {
+          this.$container.append(this.config.backdrop.template)
+        }
+
+        bd = this.findBackdrop(this.config.backdrop.required)
+      }
+
+      return bd
+    }
+
     // Find closest mdb-layout-container based on the given context
-    findLayoutContainer(raiseError = true, context = this.$element) {
+    findBackdrop(raiseError = true, context = this.$container) {
+      let backdrop = context.find(`> ${Selector.BACKDROP}`)
+      if (backdrop.length === 0 && raiseError) {
+        $.error(`Failed to find ${Selector.BACKDROP} for ${Util.describe(context)}`)
+      }
+      return backdrop
+    }
+
+    // Find closest mdb-layout-container based on the given context
+    findContainer(raiseError = true, context = this.$element) {
       let container = context.closest(Selector.CONTAINER)
       if (container.length === 0 && raiseError) {
         $.error(`Failed to find ${Selector.CONTAINER} for ${Util.describe(context)}`)
diff --git a/js/src/bootstrapMaterialDesign.js b/js/src/bootstrapMaterialDesign.js
index ec2b9fcb..a9726148 100644
--- a/js/src/bootstrapMaterialDesign.js
+++ b/js/src/bootstrapMaterialDesign.js
@@ -49,8 +49,8 @@ const BootstrapMaterialDesign = (($) => {
     collapseInline: {
       selector: '.mdb-collapse-inline [data-toggle="collapse"]'
     },
-    drawerToggle: {
-      selector: '[data-toggle="drawer"]'
+    drawer: {
+      selector: '.mdb-layout-drawer'
     },
     file: {
       selector: 'input[type=file]'
@@ -97,7 +97,7 @@ const BootstrapMaterialDesign = (($) => {
       'checkboxInline',
       'collapseInline',
       'layout',
-      'drawerToggle',
+      'drawer',
       'file',
       'radio',
       'radioInline',
@@ -153,6 +153,7 @@ const BootstrapMaterialDesign = (($) => {
           } catch (e) {
             let message = `Failed to instantiate component: $('${selector}')[${jqueryFn}](${componentConfig})`
             console.error(message, e, `\nSelected elements: `, $(selector)) // eslint-disable-line no-console
+            throw e
           }
         }
       }
diff --git a/js/src/drawer.js b/js/src/drawer.js
new file mode 100644
index 00000000..12698e9e
--- /dev/null
+++ b/js/src/drawer.js
@@ -0,0 +1,166 @@
+import BaseLayout from './baseLayout'
+
+const Drawer = (($) => {
+
+  /**
+   * ------------------------------------------------------------------------
+   * Constants
+   * ------------------------------------------------------------------------
+   */
+  const NAME = 'drawer'
+  const DATA_KEY = `mdb.${NAME}`
+  const JQUERY_NAME = `mdb${NAME.charAt(0).toUpperCase() + NAME.slice(1)}`
+  const JQUERY_NO_CONFLICT = $.fn[JQUERY_NAME]
+
+  const Keycodes = {
+    ESCAPE: 27
+    //ENTER: 13,
+    //SPACE: 32
+  }
+
+  const ClassName = {
+    IN: 'in',
+    DRAWER_IN: `mdb-drawer-in`,
+    DRAWER: 'mdb-layout-drawer',
+    CONTAINER: 'mdb-layout-container'
+  }
+
+  const Default = {
+    focusSelector: `a, button, input`
+  }
+
+  /**
+   * ------------------------------------------------------------------------
+   * Class Definition
+   * ------------------------------------------------------------------------
+   */
+  class Drawer extends BaseLayout {
+
+    // $element is expected to be the trigger
+    //  i.e. <button class="btn mdb-btn-icon" for="search" data-toggle="drawer" data-target="#my-side-nav-drawer" aria-expanded="false" aria-controls="my-side-nav-drawer">
+    constructor($element, config) {
+      super($element, $.extend(true, {}, Default, config))
+
+      //this.$toggles = $.makeArray($(`[data-toggle="drawer"][href="#${this.$element[0].id}"], [data-toggle="drawer"][data-target="#${this.$element[0].id}"]`))
+      this.$toggles = $(`[data-toggle="drawer"][href="#${this.$element[0].id}"], [data-toggle="drawer"][data-target="#${this.$element[0].id}"]`)
+
+      this._addAria()
+
+      // click or escape on the backdrop closes the drawer
+      this.$backdrop.keydown((ev) => {
+        if (ev.which === Keycodes.ESCAPE) {
+          this.hide()
+        }
+      }).click(() => {
+        this.hide()
+      })
+
+      // escape on the drawer closes it
+      this.$element.keydown((ev) => {
+        if (ev.which === Keycodes.ESCAPE) {
+          this.hide()
+        }
+      })
+
+      // any toggle button clicks
+      this.$toggles.click(() => {
+        this.toggle()
+      })
+    }
+
+    dispose() {
+      super.dispose(DATA_KEY)
+      this.$toggles = null
+    }
+
+    toggle() {
+      if (this._isOpen()) {
+        this.hide()
+      } else {
+        this.show()
+      }
+    }
+
+    show() {
+      if (this._isOpen()) {
+        return
+      }
+
+      this.$toggles.attr('aria-expanded', true)
+      this.$element.attr('aria-expanded', true)
+      this.$element.attr('aria-hidden', false)
+
+      // focus on the first focusable item
+      let $focusOn = this.$element.find(this.config.focusSelector)
+      if ($focusOn.length > 0) {
+        $focusOn.first().focus()
+      }
+
+      this.$container.addClass(ClassName.DRAWER_IN)
+      // backdrop is responsively styled based on mdb-drawer-overlay, therefore style is none of our concern, simply add the marker class and let the scss determine if it should be displayed or not.
+      this.$backdrop.addClass(ClassName.IN)
+    }
+
+    hide() {
+      if (!this._isOpen()) {
+        return
+      }
+
+      this.$toggles.attr('aria-expanded', false)
+      this.$element.attr('aria-expanded', false)
+      this.$element.attr('aria-hidden', true)
+
+      this.$container.removeClass(ClassName.DRAWER_IN)
+      this.$backdrop.removeClass(ClassName.IN)
+    }
+
+
+    // ------------------------------------------------------------------------
+    // private
+
+    _isOpen() {
+      return this.$container.hasClass(ClassName.DRAWER_IN)
+    }
+
+    _addAria() {
+      let isOpen = this._isOpen()
+      this.$element.attr('aria-expanded', isOpen)
+      this.$element.attr('aria-hidden', isOpen)
+
+      if (this.$toggles.length) {
+        this.$toggles.attr('aria-expanded', isOpen)
+      }
+    }
+
+    // ------------------------------------------------------------------------
+    // static
+    static _jQueryInterface(config) {
+      return this.each(function () {
+        let $element = $(this)
+        let data = $element.data(DATA_KEY)
+
+        if (!data) {
+          data = new Drawer($element, config)
+          $element.data(DATA_KEY, data)
+        }
+      })
+    }
+  }
+
+  /**
+   * ------------------------------------------------------------------------
+   * jQuery
+   * ------------------------------------------------------------------------
+   */
+  $.fn[JQUERY_NAME] = Drawer._jQueryInterface
+  $.fn[JQUERY_NAME].Constructor = Drawer
+  $.fn[JQUERY_NAME].noConflict = () => {
+    $.fn[JQUERY_NAME] = JQUERY_NO_CONFLICT
+    return Drawer._jQueryInterface
+  }
+
+  return Drawer
+
+})(jQuery)
+
+export default Drawer
diff --git a/js/src/drawerToggle.js b/js/src/drawerToggle.js
deleted file mode 100644
index 472c3d67..00000000
--- a/js/src/drawerToggle.js
+++ /dev/null
@@ -1,100 +0,0 @@
-import BaseLayout from './baseLayout'
-import Util from './util'
-
-const DrawerToggle = (($) => {
-
-  /**
-   * ------------------------------------------------------------------------
-   * Constants
-   * ------------------------------------------------------------------------
-   */
-  const NAME = 'drawerToggle'
-  const DATA_KEY = `mdb.${NAME}`
-  const JQUERY_NAME = `mdb${NAME.charAt(0).toUpperCase() + NAME.slice(1)}`
-  const JQUERY_NO_CONFLICT = $.fn[JQUERY_NAME]
-
-  const ClassName = {
-    //IN: 'in',
-    DRAWER: 'mdb-layout-drawer',
-    CONTAINER: 'mdb-layout-container'
-
-    //COLLAPSING: 'collapsing',
-    //COLLAPSED: 'collapsed',
-    //WIDTH: 'width'
-  }
-
-  //const Selector = {
-  //  CONTAINER: `.${ClassName.CONTAINER}`
-  //}
-
-
-  const Default = {}
-
-  /**
-   * ------------------------------------------------------------------------
-   * Class Definition
-   * ------------------------------------------------------------------------
-   */
-  class DrawerToggle extends BaseLayout {
-
-    // $element is expected to be the trigger
-    //  i.e. <button class="btn mdb-btn-icon" for="search" data-toggle="drawer" data-target="#my-side-nav-drawer" aria-expanded="false" aria-controls="my-side-nav-drawer">
-    constructor($element, config) {
-      super($element, $.extend(true, {}, Default, config))
-
-      let selector = $element.data('target')
-      this.$drawer = $(selector)
-
-      Util.assert($element, this.$drawer.length === 0, `Cannot find drawer target for ${Util.describe($element)}`)
-      Util.assert(this.$drawer, !this.$drawer.hasClass(ClassName.DRAWER), `${Util.describe(this.$drawer)} is expected to have the '${ClassName.DRAWER}' class.  It is being targeted by ${Util.describe($element)}`)
-
-
-      // find the drawer's container - remember, this button may be outside the container, we only need the target's container.
-      this.$layoutContainer = this.findLayoutContainer(true, this.$drawer)
-
-      // get a handle to the Layout object and interact with it? i.e. show/hide?
-    }
-
-    dispose() {
-      super.dispose(DATA_KEY)
-      this.$drawer = null
-      this.$layoutContainer = null
-    }
-
-
-
-    // ------------------------------------------------------------------------
-    // private
-
-    // ------------------------------------------------------------------------
-    // static
-    static _jQueryInterface(config) {
-      return this.each(function () {
-        let $element = $(this)
-        let data = $element.data(DATA_KEY)
-
-        if (!data) {
-          data = new DrawerToggle($element, config)
-          $element.data(DATA_KEY, data)
-        }
-      })
-    }
-  }
-
-  /**
-   * ------------------------------------------------------------------------
-   * jQuery
-   * ------------------------------------------------------------------------
-   */
-  $.fn[JQUERY_NAME] = DrawerToggle._jQueryInterface
-  $.fn[JQUERY_NAME].Constructor = DrawerToggle
-  $.fn[JQUERY_NAME].noConflict = () => {
-    $.fn[JQUERY_NAME] = JQUERY_NO_CONFLICT
-    return DrawerToggle._jQueryInterface
-  }
-
-  return DrawerToggle
-
-})(jQuery)
-
-export default DrawerToggle
diff --git a/js/src/index.js b/js/src/index.js
index 5b3467c9..d3a531bc 100644
--- a/js/src/index.js
+++ b/js/src/index.js
@@ -23,7 +23,7 @@ import Text from './text'
 import Textarea from './textarea'
 
 import Layout from './layout'
-import DrawerToggle from './drawerToggle'
+import DrawerToggle from './drawer'
 
 import Ripples from './ripples'
 import Autofill from './autofill'
diff --git a/js/src/layout.js b/js/src/layout.js
index 19675208..69b748ea 100644
--- a/js/src/layout.js
+++ b/js/src/layout.js
@@ -12,30 +12,19 @@ const Layout = (($) => {
   const JQUERY_NAME = `mdb${NAME.charAt(0).toUpperCase() + NAME.slice(1)}`
   const JQUERY_NO_CONFLICT = $.fn[JQUERY_NAME]
 
-  const Keycodes = {
-    ENTER: 13,
-    ESCAPE: 27,
-    SPACE: 32
-  }
+  //const ClassName = {
+  //  CANVAS: 'mdb-layout-canvas',
+  //  HEADER: 'mdb-layout-header',
+  //  DRAWER: 'mdb-layout-drawer',
+  //  CONTENT: 'mdb-layout-content',
+  //  BACKDROP: 'mdb-layout-backdrop',
+  //}
 
-  const ClassName = {
-    CANVAS: 'mdb-layout-canvas',
-    HEADER: 'mdb-layout-header',
-    DRAWER: 'mdb-layout-drawer',
-    CONTENT: 'mdb-layout-content',
-    DRAWER_BTN: 'mdb-layout-drawer-button',  // FIXME: swithch to data-drawer attr finder or something like that, see navbar toggler
-    BACKDROP: 'mdb-layout-backdrop',
-
-    DRAWER_IN: `mdb-drawer-in`
-  }
-
-  const Selector = {
-    DRAWER_BTN: `.${ClassName.DRAWER_BTN}`,
-    DRAWER: `.${ClassName.DRAWER}`,
-    HEADER: `.${ClassName.HEADER}`,
-    CONTENT: `.${ClassName.CONTENT}`,
-    DATA_TOGGLE_DRAWER: '[data-toggle="drawer"]'
-  }
+  //const Selector = {
+  //  DRAWER: `.${ClassName.DRAWER}`,
+  //  HEADER: `.${ClassName.HEADER}`,
+  //  CONTENT: `.${ClassName.CONTENT}`
+  //}
 
   const Default = {}
 
@@ -57,151 +46,15 @@ const Layout = (($) => {
       //this.$element.parentElement.removeChild(this.$element)
       //canvas.appendChild(this.$element)
 
-      this.$header = $element.find(`> ${Selector.HEADER}`)
-      this.$drawer = $element.find(`> ${Selector.DRAWER}`)
-      this.$content = $element.find(`> ${Selector.CONTENT}`)
-
-
-      // Add drawer toggling button to our layout, if we have an openable drawer.
-      if (this.$drawer) {
-
-        // FIXME: separate DrawerToggle component?
-        //this.$drawerBtn = $element.find(`${DRAWER_BTN}`)
-        //
-        //if (this.$drawerBtn) {      // FIXME what about many drawer buttons? implies a separate jquery class
-        //
-        //  this.$drawerBtn.click((ev) => {
-        //    this._drawerToggleHandler(ev)
-        //  })
-        //  this.$drawerBtn.keydown((ev) => {
-        //    this._drawerToggleHandler(ev)
-        //  })
-        //}
-
-        // create the backdrop
-        this.$backdrop = $(`<div class="${ClassName.BACKDROP}"></div>`)
-        this.$backdrop.click((ev) => {
-          this._drawerToggleHandler(ev)
-        })
-        this.$element.append(this.$backdrop)
-
-        this.$drawer.keydown((ev) => {
-          this._onDrawerKeydown(ev)
-        })
-        this.$drawer.attr('aria-hidden', 'true')
-      }
+      //this.$header = $element.find(`> ${Selector.HEADER}`)
+      //this.$drawer = $element.find(`> ${Selector.DRAWER}`)
+      //this.$content = $element.find(`> ${Selector.CONTENT}`)
     }
 
     dispose() {
       super.dispose(DATA_KEY)
     }
 
-    /**
-     * Toggle drawer state
-     */
-    toggleDrawer() {
-      //FIXME: seems terrible, look at navbar toggler
-
-      //$drawerBtn = this.$element.querySelector(Selector.DRAWER_BTN)
-      //var firstLink = document.querySelector(Selector.DRAWER + ' a')
-      //this.$drawer.classList.toggle(ClassName.IS_DRAWER_OPEN)
-      //this.$backdrop.classList.toggle(ClassName.IS_DRAWER_OPEN)
-      //
-      //// focus first link if drawer will be opened otherwise focus the drawer button
-      //if (this.$drawer.hasClass(ClassName.IS_DRAWER_OPEN)) {
-      //  this.$drawer.attr('aria-hidden', 'false')
-      //  this.$drawerBtn.attr('aria-expanded', 'true')
-      //  if (firstLink) {
-      //    firstLink.focus()
-      //  }
-      //} else {
-      //  this.$drawer.attr('aria-hidden', 'true')
-      //  this.$drawerBtn.attr('aria-expanded', 'false')
-      //  this.$drawerBtn.focus()
-      //}
-    }
-
-
-
-    toggleDrawer() {
-      if ($(this._element).hasClass(ClassName.DRAWER_IN)) {
-        this.hide()
-      } else {
-        this.show()
-      }
-    }
-
-    show() {
-      if ($(this._element).hasClass(ClassName.IN)) {
-        return
-      }
-
-      this._element.setAttribute('aria-expanded', true)
-
-      if (this._triggerArray.length) {
-        $(this._triggerArray)
-          .removeClass(ClassName.COLLAPSED)
-          .attr('aria-expanded', true)
-      }
-
-      $(this._element)
-        .removeClass(ClassName.COLLAPSING)
-        .addClass(ClassName.COLLAPSE)
-        .addClass(ClassName.IN)
-    }
-
-    hide() {
-      if (this._isTransitioning || !$(this._element).hasClass(ClassName.IN)) {
-        return
-      }
-
-      this._element.setAttribute('aria-expanded', false)
-
-      if (this._triggerArray.length) {
-        $(this._triggerArray)
-          .addClass(ClassName.COLLAPSED)
-          .attr('aria-expanded', false)
-      }
-
-      $(this._element)
-        .removeClass(ClassName.COLLAPSING)
-        .addClass(ClassName.COLLAPSE)
-        .trigger(Event.HIDDEN)
-    }
-
-    // ------------------------------------------------------------------------
-    // private
-
-    /**
-     * Handles events of of drawer button.
-     *
-     * @param {Event} ev The event that fired.
-     * @private
-     */
-    _drawerToggleHandler(ev) {
-      if (ev && (ev.type === 'keydown')) {
-        if (ev.keyCode === Keycodes.SPACE || ev.keyCode === Keycodes.ENTER) {
-          // prevent scrolling in drawer nav
-          ev.preventDefault()
-        } else {
-          // prevent other keys
-          return
-        }
-      }
-
-      this.toggleDrawer()
-    }
-
-    /**
-     * Handles a keyboard event on the drawer.
-     */
-    _onDrawerKeydown(ev) {
-      if (ev.keyCode === Keycodes.ESCAPE) {
-        this.toggleDrawer()
-      }
-    }
-
-
     // ------------------------------------------------------------------------
     // static
     static _jQueryInterface(config) {