popup add context

src/mixins/popup/popup-context.js

@@ -0,0 +1,35 @@
+import merge from 'src/utils/merge';
+
+let context;
+if (window && window.popupContext) {
+  context = window.popupContext
+}
+
+const DEFAULT_CONTEXT = {
+  idSeed: 1,
+  zIndex: 2000,
+  hasModal: false,
+  instances: {},
+  modalStack: []
+}
+
+context = window.popupContext = merge({}, DEFAULT_CONTEXT, context);
+
+const PopupContext = {
+  getContext(key) {
+    return context[key];
+  },
+
+  setContext(key, value) {
+    context[key] = value;
+  },
+
+  plusKeyByOne(key) {
+    const oldVal = context[key];
+    context[key] = oldVal + 1;
+
+    return oldVal;
+  }
+};
+
+export default PopupContext;