Merge pull request #1334 from AllanWang/fix/offline-crash

Fix/offline crash

1 files changed, 27 insertions, 0 deletions

diff --git a/app/src/web/assets/js/document_watcher.ts b/app/src/web/assets/js/document_watcher.ts
new file mode 100644
index 00000000..e671149c
--- /dev/null
+++ b/app/src/web/assets/js/document_watcher.ts
@@ -0,0 +1,27 @@
+// Emit key once half the viewport is covered
+(function () {
+    const isReady = () => {
+        return document.body.scrollHeight > innerHeight + 100
+    };
+
+    if (isReady()) {
+        console.log('Already ready');
+        Frost.isReady();
+        return
+    }
+
+    console.log('Injected document watcher');
+
+    const observer = new MutationObserver(() => {
+        if (isReady()) {
+            observer.disconnect();
+            Frost.isReady();
+            console.log(`Documented surpassed height in ${performance.now()}`);
+        }
+    });
+
+    observer.observe(document, {
+        childList: true,
+        subtree: true
+    })
+}).call(undefined);