Revert "Revert "delete notes skeleton dialog""

This reverts commit 584fea19

src/public/app/dialogs/delete_notes.js

@@ -0,0 +1,54 @@
+const $dialog = $("#delete-notes-dialog");
+const $confirmContent = $("#delete-notes-dialog-content");
+const $okButton = $("#delete-notes-dialog-ok-button");
+const $cancelButton = $("#delete-notes-dialog-cancel-button");
+const $custom = $("#delete-notes-dialog-custom");
+
+const DELETE_NOTE_BUTTON_ID = "delete-notes-dialog-delete-note";
+
+let $originallyFocused; // element focused before the dialog was opened so we can return to it afterwards
+
+export function showDialog(message) {
+    $originallyFocused = $(':focus');
+
+    $custom.hide();
+
+    glob.activeDialog = $dialog;
+
+    if (typeof message === 'string') {
+        message = $("<div>").text(message);
+    }
+
+    $confirmContent.empty().append(message);
+
+    $dialog.modal();
+
+    return new Promise((res, rej) => { resolve = res; });
+}
+
+export function isDeleteNoteChecked() {
+    return $("#" + DELETE_NOTE_BUTTON_ID + ":checked").length > 0;
+}
+
+$dialog.on('shown.bs.modal', () => $okButton.trigger("focus"));
+
+$dialog.on("hidden.bs.modal", () => {
+    if (resolve) {
+        resolve(false);
+    }
+
+    if ($originallyFocused) {
+        $originallyFocused.trigger('focus');
+        $originallyFocused = null;
+    }
+});
+
+function doResolve(ret) {
+    resolve(ret);
+    resolve = null;
+
+    $dialog.modal("hide");
+}
+
+$cancelButton.on('click', () => doResolve(false));
+$okButton.on('click', () => doResolve(true));