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Fix: Prevent duplicate JS bridge injection on desktop #383

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Merged
merged 1 commit into from
Oct 29, 2025
Merged

Fix: Prevent duplicate JS bridge injection on desktop #383

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44 changes: 23 additions & 21 deletions webview/src/commonMain/kotlin/com/multiplatform/webview/web/IWebView.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -179,28 +179,30 @@ interface IWebView {
}
val initJs =
"""
window.$jsBridgeName = {
callbacks: {},
callbackId: 0,
callNative: function (methodName, params, callback) {
var message = {
methodName: methodName,
params: params,
callbackId: callback ? window.$jsBridgeName.callbackId++ : -1
};
if (callback) {
window.$jsBridgeName.callbacks[message.callbackId] = callback;
if (typeof window.$jsBridgeName === 'undefined') {
window.$jsBridgeName = {
callbacks: {},
callbackId: 0,
callNative: function (methodName, params, callback) {
var message = {
methodName: methodName,
params: params,
callbackId: callback ? window.$jsBridgeName.callbackId++ : -1
};
if (callback) {
window.$jsBridgeName.callbacks[message.callbackId] = callback;
}
window.$jsBridgeName.postMessage(JSON.stringify(message));
},
onCallback: function (callbackId, data) {
var callback = window.$jsBridgeName.callbacks[callbackId];
if (callback) {
callback(data);
delete window.$jsBridgeName.callbacks[callbackId];
}
}
window.$jsBridgeName.postMessage(JSON.stringify(message));
},
onCallback: function (callbackId, data) {
var callback = window.$jsBridgeName.callbacks[callbackId];
if (callback) {
callback(data);
delete window.$jsBridgeName.callbacks[callbackId];
}
}
};
};
}
""".trimIndent()
evaluateJavaScript(initJs)
}
Expand Down