JSify all the things!jsify

1 files changed, 60 insertions, 0 deletions

diff --git a/app/assets/javascripts/autosave.js b/app/assets/javascripts/autosave.js
new file mode 100644
index 00000000000..cf000f1cef9
--- /dev/null
+++ b/app/assets/javascripts/autosave.js
@@ -0,0 +1,60 @@
+this.Autosave = (function() {
+  function Autosave(field, key) {
+    this.field = field;
+    if (key.join != null) {
+      key = key.join("/");
+    }
+    this.key = "autosave/" + key;
+    this.field.data("autosave", this);
+    this.restore();
+    this.field.on("input", (function(_this) {
+      return function() {
+        return _this.save();
+      };
+    })(this));
+  }
+
+  Autosave.prototype.restore = function() {
+    var e, error, text;
+    if (window.localStorage == null) {
+      return;
+    }
+    try {
+      text = window.localStorage.getItem(this.key);
+    } catch (error) {
+      e = error;
+      return;
+    }
+    if ((text != null ? text.length : void 0) > 0) {
+      this.field.val(text);
+    }
+    return this.field.trigger("input");
+  };
+
+  Autosave.prototype.save = function() {
+    var text;
+    if (window.localStorage == null) {
+      return;
+    }
+    text = this.field.val();
+    if ((text != null ? text.length : void 0) > 0) {
+      try {
+        return window.localStorage.setItem(this.key, text);
+      } catch (undefined) {}
+    } else {
+      return this.reset();
+    }
+  };
+
+  Autosave.prototype.reset = function() {
+    if (window.localStorage == null) {
+      return;
+    }
+    try {
+      return window.localStorage.removeItem(this.key);
+    } catch (undefined) {}
+  };
+
+  return Autosave;
+
+})();