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

Fix/offline crash

1 files changed, 57 insertions, 0 deletions

diff --git a/app/src/web/assets/js/click_a.ts b/app/src/web/assets/js/click_a.ts
new file mode 100644
index 00000000..5023610e
--- /dev/null
+++ b/app/src/web/assets/js/click_a.ts
@@ -0,0 +1,57 @@
+(function () {
+    let prevented = false;
+
+    const _frostAClick = (e: Event) => {
+        // check for valid target
+        const target = e.target || e.currentTarget || e.srcElement;
+        if (!(target instanceof Element)) {
+            console.log("No element found");
+            return
+        }
+        let element: Element = target;
+        // Notifications are two layers under
+        for (let i = 0; i < 2; i++) {
+            if (element.tagName !== 'A') {
+                element = <Element>element.parentElement;
+            }
+        }
+        if (element.tagName === 'A') {
+            if (!prevented) {
+                const url = element.getAttribute('href');
+                if (!url || url === '#') {
+                    return
+                }
+                console.log(`Click intercept ${url}`);
+                // If Frost is injected, check if loading the url through an overlay works
+                if (Frost.loadUrl(url)) {
+                    e.stopPropagation();
+                    e.preventDefault();
+                }
+            } else {
+                console.log("Click intercept prevented")
+            }
+        }
+    };
+
+    /*
+     * On top of the click event, we must stop it for long presses
+     * Since that will conflict with the context menu
+     * Note that we only override it on conditions where the context menu
+     * Will occur
+     */
+    const _frostPreventClick = () => {
+        console.log("Click _frostPrevented");
+        prevented = true;
+    };
+
+    document.addEventListener('click', _frostAClick, true);
+    let clickTimeout: number | undefined = undefined;
+    document.addEventListener('touchstart', () => {
+        clickTimeout = setTimeout(_frostPreventClick, 400);
+    }, true);
+    document.addEventListener('touchend', () => {
+        prevented = false;
+        clearTimeout(clickTimeout)
+    }, true);
+}).call(undefined);
+