Add ConfirmModal comp

src/components/confirm_modal/confirm_modal.js

@@ -0,0 +1,42 @@
+import DialogModal from '../dialog_modal/dialog_modal.vue'
+
+/**
+ * This component emits the following events:
+ * cancelled, emitted when the action should not be performed;
+ * accepted, emitted when the action should be performed;
+ *
+ * The caller should close this dialog after receiving any of the two events.
+ */
+const ConfirmModal = {
+  components: {
+    DialogModal
+  },
+  data: {
+  },
+  props: {
+    showing: {
+      type: Boolean
+    },
+    title: {
+      type: String
+    },
+    cancelText: {
+      type: String
+    },
+    confirmText: {
+      type: String
+    }
+  },
+  computed: {
+  },
+  methods: {
+    onCancel () {
+      this.$emit('cancelled')
+    },
+    onAccept () {
+      this.$emit('accepted')
+    }
+  }
+}
+
+export default ConfirmModal