add edit script for improved edition comfort

1 files changed, 60 insertions, 0 deletions

diff --git a/assets/js/edit.js b/assets/js/edit.js
new file mode 100644
index 0000000..6a652ad
--- /dev/null
+++ b/assets/js/edit.js
@@ -0,0 +1,60 @@
+let form;
+let unsavedChanges = false;
+
+window.onload = () => {
+    form = document.getElementById('update');
+    let inputs = form.elements;
+    for (i = 0; i < inputs.length; i++) {
+        inputs[i].onchange = changeHandler;
+        inputs[i].oninput = changeHandler;
+    }
+
+    form.onsubmit = submitHandler;
+    window.onkeydown = keyboardHandler;
+    window.onbeforeunload = confirmExit;
+};
+
+/**
+ * Manage a keyboardEvent
+ * @param {KeyboardEvent} e 
+ */
+function keyboardHandler(e) {
+    if (e.composed) {
+        if (e.ctrlKey) {
+            // console.log(e.key);
+            switch (e.key) {
+                case 's':
+                    form.submit();
+                    return false;
+            }
+        }
+    }
+}
+
+/**
+ * Manage change event
+ * @param {Event} e 
+ */
+function changeHandler(e) {
+    unsavedChanges = true;
+    // console.log({unsavedChanges});
+}
+
+/**
+ * Manage submit event
+ * @param {Event} e 
+ */
+function submitHandler(e) {
+    unsavedChanges = false;
+}
+
+/**
+ * Manage a beforeUnloadEvent
+ * @param {BeforeUnloadEvent} e 
+ */
+function confirmExit(e) {
+    // console.log({unsavedChanges});
+    if (unsavedChanges) {
+        return "You have attempted to leave this page. Are you sure?";
+    }
+}
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