added session_store to supplement local_store

.gitignore

@@ -1,3 +1,4 @@
+.idea
 *.gem
 *.rbc
 .bundle

lib/volt/controllers/collection_helpers.rb

@@ -34,6 +34,10 @@ def local_store
       Volt.current_app.local_store
     end
 
+    def session_store
+      Volt.current_app.session_store
+    end
+
     def cookies
       Volt.current_app.cookies
     end

lib/volt/models.rb

@@ -8,6 +8,7 @@
 require 'volt/models/persistors/params'
 require 'volt/models/persistors/cookies' if RUBY_PLATFORM == 'opal'
 require 'volt/models/persistors/flash'
+require 'volt/models/persistors/session_store'
 require 'volt/models/persistors/local_store'
 require 'volt/models/root_models/root_models'
 # require 'volt/models/root_models/store_root'

lib/volt/models/persistors/html_store.rb

@@ -0,0 +1,55 @@
+require 'volt/models/persistors/base'
+require 'volt/utils/html_storage'
+require 'volt/utils/ejson'
+
+module Volt
+  module Persistors
+    # Backs a collection in the local store
+    class HtmlStore < Base
+
+      # Implement in LocalStore and SessionStore
+      def self.storage
+        raise 'should be implemented in SessionStore or LocalStore'
+      end
+
+      # Called when a model is added to the collection
+      def added(model, index)
+        root_model.persistor.save_all
+      end
+
+      def loaded(initial_state = nil)
+        super
+        # When the main model is first loaded, we pull in the data from the
+        # store if it exists
+        if @model.path == []
+          json_data = self.class.storage['volt-store']
+          if json_data
+            root_attributes = EJSON.parse(json_data)
+
+            @loading_data = true
+            root_attributes.each_pair do |key, value|
+              @model.send(:"_#{key}=", value)
+            end
+            @loading_data = nil
+          end
+        end
+      end
+
+      # Called when an item is changed (or removed)
+      def changed(attribute_name)
+        root_model.persistor.save_all
+
+        true
+      end
+
+      # Called on the root
+      def save_all
+        return if @loading_data
+
+        json_data = EJSON.stringify(@model.to_h)
+
+        self.class.storage['volt-store'] = json_data
+      end
+    end
+  end
+end

lib/volt/models/persistors/local_store.rb

@@ -1,49 +1,15 @@
-require 'volt/models/persistors/base'
+require 'volt/models/persistors/html_store'
 require 'volt/utils/local_storage'
-require 'volt/utils/ejson'
 
 module Volt
   module Persistors
     # Backs a collection in the local store
-    class LocalStore < Base
-      # Called when a model is added to the collection
-      def added(model, index)
-        root_model.persistor.save_all
-      end
-
-      def loaded(initial_state = nil)
-        super
-        # When the main model is first loaded, we pull in the data from the
-        # store if it exists
-        if @model.path == []
-          json_data = LocalStorage['volt-store']
-          if json_data
-            root_attributes = EJSON.parse(json_data)
-
-            @loading_data = true
-            root_attributes.each_pair do |key, value|
-              @model.send(:"_#{key}=", value)
-            end
-            @loading_data = nil
-          end
-        end
-      end
+    class LocalStore < HtmlStore
 
-      # Callled when an item is changed (or removed)
-      def changed(attribute_name)
-        root_model.persistor.save_all
-
-        true
+      def self.storage
+        LocalStorage
       end
 
-      # Called on the root
-      def save_all
-        return if @loading_data
-
-        json_data = EJSON.stringify(@model.to_h)
-
-        LocalStorage['volt-store'] = json_data
-      end
     end
   end
 end

lib/volt/models/persistors/session_store.rb

@@ -0,0 +1,15 @@
+require 'volt/models/persistors/html_store'
+require 'volt/utils/session_storage'
+
+module Volt
+  module Persistors
+    # Backs a collection in the local store
+    class SessionStore < HtmlStore
+
+      def self.storage
+        SessionStorage
+      end
+
+    end
+  end
+end

lib/volt/models/root_models/root_models.rb

@@ -11,7 +11,7 @@ class BaseRootModel < Volt::Model
 end
 
 
-ROOT_MODEL_NAMES = [:Store, :Page, :Params, :Cookies, :LocalStore, :Flash]
+ROOT_MODEL_NAMES = [:Store, :Page, :Params, :Cookies, :LocalStore, :SessionStore, :Flash]
 
 ROOT_MODEL_NAMES.each do |base_name|
   Object.const_set("#{base_name}Root", Class.new(BaseRootModel))

lib/volt/utils/html_storage.rb

@@ -0,0 +1,59 @@
+if RUBY_PLATFORM == 'opal'
+  module Volt
+    class HtmlStorage
+
+      # Implement in SessionStorage and LocalStorage
+      def self.area
+        raise 'should be implemented in SessionStorage or LocalStorage'
+      end
+
+      def self.[](key)
+        `
+          var val = #{area}.getItem(key);
+          return val === null ? nil : val;
+        `
+      end
+
+      def self.[]=(key, value)
+        `#{area}.setItem(key, value)`
+      end
+
+      def self.clear
+        `#{area}.clear()`
+        self
+      end
+
+      def self.delete(key)
+        `
+          var val = #{area}.getItem(key);
+          #{area}.removeItem(key);
+          return val === null ? nil : val;
+        `
+      end
+    end
+  end
+else
+  module Volt
+    class HtmlStorage
+      @@store = {}
+
+      def self.[](key)
+        @@store[key]
+      end
+
+      def self.[]=(key, value)
+        @@store[key] = value
+      end
+
+      def self.clear
+        @@store = {}
+
+        self
+      end
+
+      def self.delete(key)
+        @@store.delete(key)
+      end
+    end
+  end
+end

lib/volt/utils/local_storage.rb

@@ -1,53 +1,13 @@
-if RUBY_PLATFORM == 'opal'
-  module Volt
-    module LocalStorage
-      def self.[](key)
-        `
-          var val = localStorage.getItem(key);
-          return val === null ? nil : val;
-        `
-      end
-
-      def self.[]=(key, value)
-        `localStorage.setItem(key, value)`
-      end
+require 'volt/utils/html_storage'
 
-      def self.clear
-        `localStorage.clear()`
-        self
-      end
+module Volt
+  class LocalStorage < HtmlStorage
 
-      def self.delete(key)
-        `
-          var val = localStorage.getItem(key);
-          localStorage.removeItem(key);
-          return val === null ? nil : val;
-        `
+    if RUBY_PLATFORM == 'opal'
+      def self.area
+        `localStorage`
       end
     end
-  end
-else
-  module Volt
-    module LocalStorage
-      @@store = {}
-
-      def self.[](key)
-        @@store[key]
-      end
 
-      def self.[]=(key, value)
-        @@store[key] = value
-      end
-
-      def self.clear
-        @@store = {}
-
-        self
-      end
-
-      def self.delete(key)
-        @@store.delete(key)
-      end
-    end
   end
 end

lib/volt/utils/session_storage.rb

@@ -0,0 +1,13 @@
+require 'volt/utils/html_storage'
+
+module Volt
+  class SessionStorage < HtmlStorage
+
+    if RUBY_PLATFORM == 'opal'
+      def self.area
+        `sessionStorage`
+      end
+    end
+
+  end
+end

lib/volt/volt/repos.rb

@@ -32,6 +32,13 @@ def local_store
       end
     end
 
+    def session_store
+      @session_store ||= begin
+        check_for_client?('session_store')
+        SessionStoreRoot.new({}, persistor: Persistors::SessionStore)
+      end
+    end
+
     def cookies
       @cookies ||= begin
         check_for_client?('cookies')