1 files changed, 106 insertions, 0 deletions
diff --git a/js/api/localstorage.js b/js/api/localstorage.js
new file mode 100644
index 0000000..0ec7cad
--- /dev/null
+++ b/js/api/localstorage.js
@@ -0,0 +1,106 @@
+
+user.shaders = new function(){}
+user.shaders.init = function(){
+  user.shaders.bind()
+}
+user.shaders.bind = function(){
+  user.shaders.buttons = {}
+  if ('SHADERS' in window) {
+    user.shaders.bindButtons( window.SHADERS )
+  }
+  user.shaders.bindButtons( user.shaders.getShaders() )
+  document.getElementById("add-shader").addEventListener("click", user.shaders.save, false)
+  document.getElementById("remove-shader").addEventListener("click", user.shaders.remove, false)
+}
+user.shaders.bindButtons = function(shaders){
+  for (var i = 0; i < shaders.length; i++){
+    user.shaders.bindButton(shaders[i])
+  }
+}
+user.shaders.bindButton = function(data){
+//   console.log("button >> " + data.name)
+  var button = document.createElement("button")
+  button.innerHTML = data.name
+  button.addEventListener("click", user.shaders.load.bind(this, data), false)
+  document.getElementById("shaders").appendChild(button)
+  user.shaders.buttons[data.name] = button
+}
+user.shaders.load = function(data){
+  var shader = data.shader
+  if (shader && shader.length > 0) {
+    user.shaders.name = data.name
+    $("#shader").val(shader)
+    // pause here?
+    shader_build()
+    $(".active").removeClass("active")
+    $(user.shaders.buttons[data.name]).addClass("active")
+    user.shaders.setLastAccessed(data.name)
+  }
+}
+user.shaders.loadLastAccessed = function(){
+  var name = localStorage.getItem("im.lastShader") || "colorcycle"
+  if (name in user.shaders.buttons) {
+    $(user.shaders.buttons[name]).trigger("click")
+  }
+}
+user.shaders.setLastAccessed = function(name){
+  localStorage.setItem("im.lastShader", name)
+}
+
+user.shaders.getShaderByName = function(name){
+  return { name: name, shader: user.shaders.getShaderBody(name) }
+}
+user.shaders.getShaderIndex = function(){
+  return JSON.parse( localStorage.getItem("im.shaders") ) || []
+}
+user.shaders.getShaderBody = function(name){
+  return localStorage.getItem("im.shaders."+name) || null
+}
+user.shaders.getShaders = function(){
+  var shaders = user.shaders.getShaderIndex()
+  return shaders.map(function(name){ return { name: name, shader: user.shaders.getShaderBody(name) } })
+}
+user.shaders.setShaderIndex = function(shaders){
+  localStorage.setItem("im.shaders", JSON.stringify(shaders))
+}
+user.shaders.setShader = function(name, shader){
+  if (! name.length || ! shader.length || !name.length || !shader.length) return
+  localStorage.setItem("im.shaders." + name, shader)
+}
+user.shaders.removeShader = function(name){
+  localStorage.removeItem("im.shaders." + name)
+}
+
+user.shaders.save = function(){
+  var name = prompt("enter shader name")
+  var shader = $("#shader").val()
+
+  if (! name) return;
+  if (shade !== shade_no_error_handling) return;
+
+  user.shaders.setShader(name, shader)
+
+  var shaders = user.shaders.getShaderIndex()
+  shaders.push(name)
+  user.shaders.setShaderIndex(shaders)
+
+  user.shaders.name = name
+  user.shaders.bindButton({ name: name, shader: shader })
+
+  $(".active").removeClass("active")
+  $(user.shaders.buttons[name]).addClass("active")
+  user.shaders.setLastAccessed(name)
+}
+
+user.shaders.remove = function(){
+  var name = user.shaders.name
+  if (! name || ! name.length) return
+
+  var shaders = user.shaders.getShaderIndex()
+  if (shaders.splice( shaders.indexOf(name), 1 )) {
+    user.shaders.setShaderIndex(shaders)
+    user.shaders.removeShader(name)
+    $(user.shaders.buttons[name]).remove()
+    user.shaders.name = ""
+  }
+}