Restyled message attachments

Added a size limit, added functionality to delete the attachments before sending in a more user-friendly way

index.html

@@ -33,6 +33,7 @@
             </div>
             <div id='contacts'></div>
         </div>
+        <div id='file-modal'></div>
         <script type='text/x-tmpl-mustache' id='new-group-update-form'>
             <div>
               <input type='text' name='name' class='name' placeholder='Group Name' value="{{ name }}">
@@ -57,7 +58,7 @@
                     <form class='send'>
                         <input class='send-message' rows='6' type='textarea'>
                         <div class='attachments'>
-                          <input type='file' name='files[]' multiple class='file-input'>
+                          <input type='file' name='files[]' class='file-input'>
                         </div>
                     </form>
                 </div>
@@ -113,7 +114,7 @@
                 <div class='message-composer'>
                     <input name='message' class='send-message' rows='6' type='textarea'>
                     <div class='attachments'>
-                      <input type='file' name='files[]' multiple class='file-input'>
+                      <input type='file' name='files[]' class='file-input'>
                     </div>
                     <input type='submit'>
                 </div>
@@ -139,7 +140,7 @@
                 <div class='message-composer'>
                     <input class='send-message' rows='6' type='textarea'>
                     <div class='attachments'>
-                      <input type='file' name='files[]' multiple class='file-input'>
+                      <input type='file' name='files[]' class='file-input'>
                     </div>
                     <input type='submit'>
                 </div>
@@ -154,6 +155,28 @@
             </div>
           </form>
         </script>
+        <script type='text/x-tmpl-mustache' id='attachment-preview'>
+            <div class="imageAttachment">
+                <img src="{{ source }}" class="preview" />
+                <div class="close">x</div>
+            </div>
+        </script>
+        <script type='text/x-tmpl-mustache' id='file-size-modal'>
+            <div id="modal" class="modal-wrapper">
+                <div class="modal-content">
+                    <div class="modal-container">
+                        <div class="modal-banner">
+                            <span>File Too Large</span>
+                            <div class="modal-close"><a class="modal-close-button"  href="#" title="Close">X</a></div>
+                        </div>
+                        <div class="modal-inner modal-padding">
+                            <p>This file exceeds 420KB. Please attach a smaller file.</p>
+                            <button id="closeModal"><a href="#">OK</a></button>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </script>
         <script type="text/javascript" src="js/components.js"></script>
 
         <script type="text/javascript" src="js/libtextsecure.js"></script>
@@ -168,6 +191,7 @@
 
         <script type="text/javascript" src="js/chromium.js"></script>
         <script type="text/javascript" src="js/views/notifications.js"></script>
+        <script type="text/javascript" src="js/views/file_modal_view.js"></script>
         <script type="text/javascript" src="js/views/file_input_view.js"></script>
         <script type="text/javascript" src="js/views/list_view.js"></script>
         <script type="text/javascript" src="js/views/new_group_update_view.js"></script>

js/views/file_input_view.js

@@ -22,25 +22,33 @@ var Whisper = Whisper || {};
         className: 'file-input',
         initialize: function() {
             this.$input = this.$el.find('input[type=file]');
+            this.modal = new Whisper.ModalView({el: $('#file-modal')});
         },
 
         events: {
-            'change': 'previewImages'
+            'change': 'previewImages',
+            'click .close': 'deleteFiles'
         },
 
         addThumb: function(e) {
-          this.$el.append(
-            $('<img>').attr( "src", e.target.result ).addClass('preview')
-          );
+            var attachmentPreview = $('#attachment-preview').html();
+            Mustache.parse(attachmentPreview);
+            this.$el.append($(Mustache.render(attachmentPreview, {source: e.target.result})));
         },
 
         previewImages: function() {
-            this.$el.find('img').remove();
+            this.clearForm();
             var files = this.$input.prop('files');
             for (var i = 0; i < files.length; i++) {
                 var FR = new FileReader();
-                FR.onload = this.addThumb.bind(this);
-                FR.readAsDataURL(files[i]);
+                if ((files[i].size/1024).toFixed(4) >= 420) {
+                    this.modal.open();
+                    this.deleteFiles();
+                }
+                else {
+                    FR.onload = this.addThumb.bind(this);
+                    FR.readAsDataURL(files[i]);
+                }
             }
         },
 
@@ -63,9 +71,18 @@ var Whisper = Whisper || {};
                 }.bind(this));
                 promises.push(p);
             }
-            this.$el.find('img').remove();
+            this.clearForm();
             return Promise.all(promises);
-        }
+        },
 
+        clearForm: function() {
+            this.$el.find('div.imageAttachment').remove();
+        },
+
+        deleteFiles: function() {
+            this.clearForm();
+            this.$input.wrap('<form>').parent('form').trigger('reset');
+            this.$input.unwrap();
+        }
     });
 })();

js/views/file_modal_view.js

@@ -0,0 +1,47 @@
+/* vim: ts=4:sw=4:expandtab
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+var Whisper = Whisper || {};
+
+(function () {
+    'use strict';
+    Whisper.ModalView = Backbone.View.extend({
+        tagName: 'div',
+        className: 'file-overload-modal',
+        initialize: function() {
+            this.template = $('#file-size-modal').html();
+            Mustache.parse(this.template);
+            this.render();
+        },
+
+        render: function() {
+            this.$el.html($(Mustache.render(this.template)));
+            return this;
+        },
+
+        events: {
+            'click .modal-close': 'close',
+            'click #closeModal': 'close'
+        },
+
+        open: function() {
+            this.$el.find('#modal').show();
+        },
+
+        close: function() {
+            this.$el.find('#modal').hide();
+        }
+    });
+})();

stylesheets/index.css

@@ -73,9 +73,37 @@ li.entry img {
   margin-top: 5px;
 }
 
+div.imageAttachment {
+  height: 30px;
+  width: 30px;
+  float: left;
+  margin: 6px;
+  position: relative;
+}
+
 img.preview {
   width: 30px;
   height: 30px;
+  overflow: hidden;
+  position: relative;
+}
+
+.close {
+  font-family: sans-serif;
+  color: white;
+  position: absolute;
+  top: -10px;
+  left: 20px;
+  text-align: center;
+  cursor: default;
+  border-radius: 50%;
+  width: 20px;
+  height: 20px;
+  padding: 0px;
+
+  background: #666;
+  color: #fff;
+  text-align: center;
 }
 
 .bootstrap-tagsinput .tag {
@@ -86,4 +114,101 @@ img.preview {
 
 ul.country-list {
   min-width: 197px !important;
+}
+
+div.attachments {
+  width: 95% !important;
+}
+
+input.file-input {
+  float: left !important;
+}
+
+.modal-wrapper {
+  position: fixed;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  width: 100%;
+  z-index: 10000 !important;
+  display: none;
+}
+
+.modal-content {
+  position: absolute;
+  top: 0;
+  width: 100%;
+  height: 100%;
+  overflow: auto;
+  overflow-y: scroll;
+}
+
+.modal-container {
+  background-color: #FFFFFF;
+  width: 450px;
+  -webkit-box-shadow: 0 0 7px 0 #000000;
+  moz-box-shadow: 0 0 7px 0 #000000;
+  box-shadow: 0 0 7px 0 #000000;
+  display: block;
+  z-index: 10000 !important;
+  margin: 45px auto;
+  position: relative;
+  border: 1px solid #666;
+}
+
+.modal-banner {
+  background-color: #00badd;
+  color: #ffffff;
+  height: 45px;
+  line-height: 45px;
+  vertical-align: middle;
+  text-align: center;
+  font-wight: bold;
+  font-size: 1.5em;
+  position: relative;
+}
+.modal-banner span {
+  padding: 0 20px;
+}
+
+.modal-close {
+  position: absolute;
+  top: 0;
+  right: 12px;
+  bottom: 0;
+}
+.modal-close a.modal-close-button {
+  color: #FFFFFF;
+  text-decoration: none;
+  font-size: .8em;
+}
+
+.modal-inner {
+  overflow: hidden;
+}
+
+.modal-inner>p {
+  color: black !important;
+}
+
+.modal-padding {
+  padding: 16px 18px;
+}
+
+@media only screen and (max-width: 450px) {
+  .modal-container {
+    width: 100%;
+    margin: 0 auto;
+  }
+
+  .modal-banner {
+    height: 32px;
+    line-height: 32px;
+    vertical-align: middle;
+    text-align: center;
+    font-wight: bold;
+    font-size: 1em;
+    position: relative;
+  }
 }