Add base script for de-risking new WebViewCompat APIs (#7034)

Task/Issue URL: https://app.asana.com/1/137249556945/task/1211755269770776?focus=true ### Description Create base script to be used as a test bed. Script contains placeholder so it can be configured as needed from native ### Steps to test this PR n/a ### UI changes n/a

Author: CrisBarreiro

app/src/main/res/raw/webviewcompat_test_script.js

@@ -0,0 +1,33 @@
+const supportedMessages = ["ContextMenuOpened", "PageStarted"];
+
+const delay = $DELAY$;
+const postInitialPing = $POST_INITIAL_PING$;
+const replyToNativeMessages = $REPLY_TO_NATIVE_MESSAGES$;
+
+const webViewCompatPingMessage = 'Ping:' + window.location.href + ' ' + delay + 'ms'
+
+
+if (postInitialPing) {
+ if (delay > 0) {
+ setTimeout(() => {
+ webViewCompatTestObj.postMessage(webViewCompatPingMessage)
+ }, delay)
+ } else {
+ webViewCompatTestObj.postMessage(webViewCompatPingMessage)
+ }
+}
+
+
+webViewCompatTestObj.onmessage = function(event) {
+ console.log("webViewCompatTestObj received", event.data)
+ if (replyToNativeMessages && supportedMessages.includes(event.data)) {
+ webViewCompatTestObj.postMessage(event.data + " from webViewCompatTestObj")
+ }
+}
+
+window.onmessage = function(event) {
+ console.log("window received", event.data)
+ if (replyToNativeMessages && supportedMessages.includes(event.data)) {
+ webViewCompatTestObj.postMessage(event.data + " from window")
+ }
+}