From 78777127a02b4d00d0bdd0d1aa9da3ba2fbb7687 Mon Sep 17 00:00:00 2001
From: Pawel Szymczykowski <makenai@gmail.com>
Date: Mon, 6 Apr 2015 11:39:40 -0700
Subject: [PATCH] WIP of contenteditable support

---
 css/jquery.emojipicker.css |   8 +++
 demo.html                  |   8 +--
 js/jquery.emojipicker.js   | 140 +++++++++++++++++++++++++++++++++----
 3 files changed, 137 insertions(+), 19 deletions(-)

diff --git a/css/jquery.emojipicker.css b/css/jquery.emojipicker.css
index 0eb74f7..771e1c8 100644
--- a/css/jquery.emojipicker.css
+++ b/css/jquery.emojipicker.css
@@ -18,3 +18,11 @@
 .emojiPicker section {overflow:scroll; position:relative; z-index:10; background:#fff;}
 .emojiPicker section div {width:40px; float:left; margin:3%;}
 .emojiPicker section div:hover {cursor:pointer;}
+
+.emojiArea {
+  display: inline-block;
+  background-color: white;
+  -moz-appearance: textfield-multiline;
+  -webkit-appearance: textarea;
+  text-align: left;
+}
diff --git a/demo.html b/demo.html
index 64ed16c..7d00ad5 100644
--- a/demo.html
+++ b/demo.html
@@ -14,14 +14,14 @@
     $(document).ready(function(e) {
 
       $('.emojiable-question').emojiPicker({
-        width: '300px',
-        height: '200px',
+        width: '260px',
+        height: '170px',
         button: false
       });
 
       $('.emojiable-option').emojiPicker({
         width: '200px',
-        height: '100px'
+        height: '140px'
       });
 
       $('#trigger').click(function(e) {
@@ -34,7 +34,7 @@
 
   <style type="text/css">
     body {background:#888;}
-    form {margin:200px 0 0 0; text-align:center;}
+    form {margin:150px 0 0 0; text-align:center;}
     input {width:400px; height:30px;}
     input,textarea,button {padding:5px 10px; font-family:"Helvetica Neue", "Helvetica", "Arial", sans-serif; font-size:24px; font-weight:300; outline:none; border:none;}
     #emojiPickerWrap {margin:10px 0 0 0;}
diff --git a/js/jquery.emojipicker.js b/js/jquery.emojipicker.js
index 93dd88b..94238c2 100644
--- a/js/jquery.emojipicker.js
+++ b/js/jquery.emojipicker.js
@@ -9,7 +9,8 @@
         iconColor: 'black',
         iconBackgroundColor: '#eee',
         container: 'body',
-        button: true
+        button: true,
+        richInput: true
       };
 
   var MIN_WIDTH = 200,
@@ -23,6 +24,9 @@
     this.element = element;
     this.$el = $(element);
 
+    // This will either be the element or the rich text area.
+    this.$input = this.$el;
+
     this.settings = $.extend( {}, defaults, options );
 
     this.$container = $(this.settings.container);
@@ -54,21 +58,49 @@
 
     init: function() {
       this.active = false;
+      if (this.settings.richInput) {
+        this.emojifyInput();
+      }
       this.addPickerIcon();
       this.createPicker();
       this.listen();
     },
 
+    // TODO : Placeholder http://stackoverflow.com/questions/20726174/placeholder-for-contenteditable-div
+
+    emojifyInput: function() {
+      this.$emojiArea = $('<div>', {
+        class: 'emojiArea',
+        contenteditable: 'true'
+      })
+
+      this.$emojiArea.width( this.$el.width() );
+      this.$emojiArea.height( this.$el.height() );
+
+      this.$emojiArea.copyCSS( this.$el, [
+        /^(padding|font|color|background|border|margin)/
+      ]);
+
+      // TODO : remove visual debugging aid
+      this.$emojiArea.css( 'background-color', '#c8fccf' );
+
+      // Replace the textarea
+      this.$el.hide()
+        .after(this.$emojiArea);
+
+      this.$input = this.$emojiArea;
+    },
+
     addPickerIcon: function() {
-      var elementHeight = this.$el.outerHeight();
+      var elementHeight = this.$input.outerHeight();
       var iconHeight = elementHeight > MAX_ICON_HEIGHT ?
         MAX_ICON_HEIGHT :
         elementHeight;
-      var objectWidth = this.$el.width();
+      var objectWidth = this.$input.width();
 
-      this.$el.width(objectWidth)
+      this.$input.width(objectWidth)
 
-      this.$wrapper = this.$el
+      this.$wrapper = this.$input
         .wrap("<div class='emojiPickerIconWrap'></div>")
         .parent()
 
@@ -117,20 +149,22 @@
       this.$picker.find('nav .tab')
         .click( $.proxy(this.emojiCategoryClicked, this) );
 
-      this.$picker.click( $.proxy(this.pickerClicked, this) );
-
-      $(document.body).click( $.proxy(this.clickOutside, this) );
+      // Clicking inside and outside of the picker
+      this.$picker
+        .click( $.proxy(this.pickerClicked, this) );
+      $(document.body)
+        .click( $.proxy(this.clickOutside, this) );
     },
 
     updatePosition: function() {
       var top, left;
       if (this.settings.container === 'body') {
-          top = this.$el.offset().top + this.$el.height();
-          left = this.$el.offset().left;
+          top = this.$input.offset().top + this.$input.height();
+          left = this.$input.offset().left;
       }
       else {
-          top = this.$el.position().top + this.$el.height();
-          left = this.$el.position().left;
+          top = this.$input.position().top + this.$input.height();
+          left = this.$input.position().left;
       }
 
       // Picker position
@@ -154,7 +188,7 @@
 
       this.$picker.css({
           top: top + 15,
-          left: left + this.$el.outerWidth() - this.settings.width
+          left: left + this.$input.outerWidth() - this.settings.width
       });
       return this;
     },
@@ -166,7 +200,7 @@
     },
 
     show: function() {
-      this.$el.focus();
+      this.$input.focus();
       this.updatePosition();
       this.$picker.show(this.settings.fadeTime, 'linear', function() {
         this.active = true;
@@ -189,7 +223,15 @@
       var emojiShortcode = $(e.target).attr('class').split('emoji-')[1];
       var emojiUnicode = toUnicode(findEmoji(emojiShortcode).unicode);
 
-      insertAtCaret(this.element, emojiUnicode);
+      if (this.settings.richInput) {
+
+        var emoji = $(emojiHTML( emojiShortcode, emojiUnicode ));
+        this.$input.focus();
+        insertTextAtCursor( emojiUnicode );
+
+      } else {
+        insertAtCaret(this.element, emojiUnicode);
+      }
     },
 
     emojiCategoryClicked: function(e) {
@@ -248,6 +290,58 @@
 
   /* ---------------------------------------------------------------------- */
 
+  /*
+   * getStyleObject Plugin for jQuery JavaScript Library
+   * From: http://upshots.org/?p=112
+   */
+  $.fn.getStyleObject = function(){
+      var dom = this.get(0);
+      var style;
+      var returns = {};
+      if(window.getComputedStyle){
+          var camelize = function(a,b){
+              return b.toUpperCase();
+          };
+          style = window.getComputedStyle(dom, null);
+          for(var i = 0, l = style.length; i < l; i++){
+              var prop = style[i];
+              var camel = prop.replace(/\-([a-z])/g, camelize);
+              var val = style.getPropertyValue(prop);
+              returns[camel] = val;
+          };
+          return returns;
+      };
+      if(style = dom.currentStyle){
+          for(var prop in style){
+              returns[prop] = style[prop];
+          };
+          return returns;
+      };
+      return this.css();
+  }
+
+  $.fn.copyCSS = function(source, attributes){
+    var styles = $(source).getStyleObject();
+    var copiedStyles = {};
+    for (var i in attributes) {
+      var attr = attributes[i];
+      if ( attr instanceof RegExp ) {
+        for (prop in styles) {
+          if (prop.match(attr))
+            copiedStyles[ prop ] = styles[ prop ];
+        }
+      } else {
+        if (attr in styles)
+          copiedStyles[ attr ] = styles[ attr ];
+      }
+    };
+    this.css(copiedStyles);
+  }
+
+  function emojiHTML(shortcode,unicode) {
+    return '<span class="emoji emoji-' + shortcode + '">' + unicode + '</span>';
+  }
+
   function getPickerHTML() {
     var nodes = [];
     var categories = [
@@ -308,6 +402,22 @@
     }
   }
 
+  // For contenteditable
+  function insertTextAtCursor(text) {
+    var sel, range, html;
+    if (window.getSelection) {
+        sel = window.getSelection();
+        if (sel.getRangeAt && sel.rangeCount) {
+            range = sel.getRangeAt(0);
+            range.deleteContents();
+            range.insertNode( document.createTextNode(text) );
+        }
+    } else if (document.selection && document.selection.createRange) {
+        document.selection.createRange().text = text;
+    }
+  }
+
+  // For text area
   function insertAtCaret(inputField, myValue) {
     if (document.selection) {
       //For browsers like Internet Explorer