Added character restore functionality

app/client/views/characterList/characterList.html

@@ -58,6 +58,13 @@
 					</paper-fab>
 					{{#simpleTooltip class="always"}} New Character {{/simpleTooltip}}
 				</div>
+				<div>
+					<paper-fab icon="file-upload"
+							   class="restoreCharacter"
+							   mini>
+					</paper-fab>
+					{{#simpleTooltip class="always"}} Restore from backup {{/simpleTooltip}}
+				</div>
 			{{/fabMenu}}
 		</div>
 	</app-header-layout>

app/client/views/characterList/characterList.js

@@ -81,4 +81,20 @@ Template.characterList.events({
 			returnElement: instance.find(`.party[data-id='${partyId}']`),
 		});
 	},
+	"click .restoreCharacter": function(event, instance) {
+		pushDialogStack({
+			template: "characterRestoreDialog",
+			element: event.currentTarget,
+			callback(dump){
+				if (!dump) return;
+				dump.character.name += " - Restored"
+				giveCharacterDumpNewIds(dump);
+				restoreCharacter(dump);
+				Router.go("characterSheet", {
+					_id: dump.character._id,
+					urlName: dump.character.urlName || '-',
+				});
+			},
+		})
+	},
 });

app/client/views/characterList/characterRestoreDialog/characterRestoreDialog.html

@@ -0,0 +1,31 @@
+<template name="characterRestoreDialog">
+	<div class="fit layout vertical">
+		<app-header-layout has-scrolling-region class="new-character-dialog flex">
+			<app-header fixed effects="waterfall">
+				<app-toolbar>
+				  <div main-title>Restore Character</div>
+				</app-toolbar>
+			</app-header>
+			<div class="form">
+				<p>
+					Restore a character from a backup file, this will create a new copy of
+          the restored character
+				</p>
+				<paper-input class="fileInput" type="file" label="File"></paper-input><br>
+        {{#if error}}
+          <p style="color: red;">
+            {{error}}
+          </p>
+        {{/if}}
+			</div>
+		</app-header-layout>
+		<div class="buttons layout horizontal end-justified">
+			<paper-button class="cancelButton">
+				Cancel
+			</paper-button>
+			<paper-button class="addButton" disabled={{invalid}}>
+				Restore
+			</paper-button>
+		</div>
+	</div>
+</template>

app/client/views/characterList/characterRestoreDialog/characterRestoreDialog.js

@@ -0,0 +1,49 @@
+Template.characterRestoreDialog.onCreated(function(){
+	this.dump = {};
+  this.valid = new ReactiveVar(false);
+  this.error = new ReactiveVar(null);
+});
+
+Template.characterRestoreDialog.helpers({
+	invalid(){
+		return !Template.instance().valid.get();
+	},
+  error(){
+    return Template.instance().error.get();
+  },
+});
+
+const fail = function(instance){
+  instance.valid.set(false);
+  instance.error.set("Failed to convert file into a valid character");
+  instance.dump = undefined;
+};
+
+Template.characterRestoreDialog.events({
+	"input .fileInput": function(event, instance){
+    let input = event.currentTarget.$.input;
+    let reader = new FileReader();
+    reader.onload = function(){
+      let dumpString = reader.result;
+      try {
+        let dump = JSON.parse(dumpString);
+        if (dump && dump.character && dump.collections){
+          instance.valid.set(true);
+          instance.error.set(null);
+          instance.dump = dump;
+        } else {
+          fail(instance);
+        }
+      } catch (e) {
+        fail(instance);
+      }
+    };
+    reader.readAsText(input.files[0]);
+	},
+	"click .cancelButton": function(event, instance){
+		popDialogStack();
+	},
+	"click .addButton": function(event, instance){
+		popDialogStack(instance.dump);
+	},
+});