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authorAllan Wang <me@allanwang.ca>2019-05-01 16:05:19 -0700
committerAllan Wang <me@allanwang.ca>2019-05-01 16:05:19 -0700
commit58f4f9298b09081b3c937227828824849057a835 (patch)
tree18d2bf44637b52c9f68817253fc37d4ca699daef /app/src/web/ts/document_watcher.ts
parent576cc1a451a16f2d82ee1e41e83c420a85ded47e (diff)
parentda93672c2ed6b54e0e7119a6b55715185112df3e (diff)
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Merge dev
Diffstat (limited to 'app/src/web/ts/document_watcher.ts')
-rw-r--r--app/src/web/ts/document_watcher.ts27
1 files changed, 27 insertions, 0 deletions
diff --git a/app/src/web/ts/document_watcher.ts b/app/src/web/ts/document_watcher.ts
new file mode 100644
index 00000000..e671149c
--- /dev/null
+++ b/app/src/web/ts/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);