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-rw-r--r--ext/mixed/js/api.js118
1 files changed, 118 insertions, 0 deletions
diff --git a/ext/mixed/js/api.js b/ext/mixed/js/api.js
index afd68aa2..bf85338e 100644
--- a/ext/mixed/js/api.js
+++ b/ext/mixed/js/api.js
@@ -152,6 +152,124 @@ function apiLogIndicatorClear() {
return _apiInvoke('logIndicatorClear');
}
+function _apiCreateActionPort(timeout=5000) {
+ return new Promise((resolve, reject) => {
+ let timer = null;
+ let portNameResolve;
+ let portNameReject;
+ const portNamePromise = new Promise((resolve2, reject2) => {
+ portNameResolve = resolve2;
+ portNameReject = reject2;
+ });
+
+ const onConnect = async (port) => {
+ try {
+ const portName = await portNamePromise;
+ if (port.name !== portName || timer === null) { return; }
+ } catch (e) {
+ return;
+ }
+
+ clearTimeout(timer);
+ timer = null;
+
+ chrome.runtime.onConnect.removeListener(onConnect);
+ resolve(port);
+ };
+
+ const onError = (e) => {
+ if (timer !== null) {
+ clearTimeout(timer);
+ timer = null;
+ }
+ chrome.runtime.onConnect.removeListener(onConnect);
+ portNameReject(e);
+ reject(e);
+ };
+
+ timer = setTimeout(() => onError(new Error('Timeout')), timeout);
+
+ chrome.runtime.onConnect.addListener(onConnect);
+ _apiInvoke('createActionPort').then(portNameResolve, onError);
+ });
+}
+
+function _apiInvokeWithProgress(action, params, onProgress, timeout=5000) {
+ return new Promise((resolve, reject) => {
+ let timer = null;
+ let port = null;
+
+ if (typeof onProgress !== 'function') {
+ onProgress = () => {};
+ }
+
+ const onMessage = (message) => {
+ switch (message.type) {
+ case 'ack':
+ if (timer !== null) {
+ clearTimeout(timer);
+ timer = null;
+ }
+ break;
+ case 'progress':
+ try {
+ onProgress(message.data);
+ } catch (e) {
+ // NOP
+ }
+ break;
+ case 'complete':
+ cleanup();
+ resolve(message.data);
+ break;
+ case 'error':
+ cleanup();
+ reject(jsonToError(message.data));
+ break;
+ }
+ };
+
+ const onDisconnect = () => {
+ cleanup();
+ reject(new Error('Disconnected'));
+ };
+
+ const cleanup = () => {
+ if (timer !== null) {
+ clearTimeout(timer);
+ timer = null;
+ }
+ if (port !== null) {
+ port.onMessage.removeListener(onMessage);
+ port.onDisconnect.removeListener(onDisconnect);
+ port.disconnect();
+ port = null;
+ }
+ onProgress = null;
+ };
+
+ timer = setTimeout(() => {
+ cleanup();
+ reject(new Error('Timeout'));
+ }, timeout);
+
+ (async () => {
+ try {
+ port = await _apiCreateActionPort(timeout);
+ port.onMessage.addListener(onMessage);
+ port.onDisconnect.addListener(onDisconnect);
+ port.postMessage({action, params});
+ } catch (e) {
+ cleanup();
+ reject(e);
+ } finally {
+ action = null;
+ params = null;
+ }
+ })();
+ });
+}
+
function _apiInvoke(action, params={}) {
const data = {action, params};
return new Promise((resolve, reject) => {