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authortoasted-nutbread <toasted-nutbread@users.noreply.github.com>2020-07-11 15:20:00 -0400
committerGitHub <noreply@github.com>2020-07-11 15:20:00 -0400
commitec42a7e4d61dc30c2839a7ff7be44bec131127a5 (patch)
tree73d0221a3aebab8bf786012d1a61f14483b59df8 /ext/mixed/js/yomichan.js
parent8389cd8ba27f328123fb73e72b24e69a4a6de2c1 (diff)
Message handler refactor (#660)
* Refactor searchQueryUpdate action * Use standard message handler style * Use name "promiseOrResult" for consistency * Use standard message handler convention for Yomichan message handlers * Use common message handler invoker
Diffstat (limited to 'ext/mixed/js/yomichan.js')
-rw-r--r--ext/mixed/js/yomichan.js56
1 files changed, 45 insertions, 11 deletions
diff --git a/ext/mixed/js/yomichan.js b/ext/mixed/js/yomichan.js
index d921a5a2..7fffbaa6 100644
--- a/ext/mixed/js/yomichan.js
+++ b/ext/mixed/js/yomichan.js
@@ -54,10 +54,10 @@ const yomichan = (() => {
this._isBackendPreparedPromiseResolve = resolve;
this._messageHandlers = new Map([
- ['backendPrepared', this._onMessageBackendPrepared.bind(this)],
- ['getUrl', this._onMessageGetUrl.bind(this)],
- ['optionsUpdated', this._onMessageOptionsUpdated.bind(this)],
- ['zoomChanged', this._onMessageZoomChanged.bind(this)]
+ ['backendPrepared', {async: false, handler: this._onMessageBackendPrepared.bind(this)}],
+ ['getUrl', {async: false, handler: this._onMessageGetUrl.bind(this)}],
+ ['optionsUpdated', {async: false, handler: this._onMessageOptionsUpdated.bind(this)}],
+ ['zoomChanged', {async: false, handler: this._onMessageZoomChanged.bind(this)}]
]);
}
@@ -210,6 +210,43 @@ const yomichan = (() => {
}
}
+ getMessageResponseResult(response) {
+ let error = chrome.runtime.lastError;
+ if (error) {
+ throw new Error(error.message);
+ }
+ if (!isObject(response)) {
+ throw new Error('Tab did not respond');
+ }
+ error = response.error;
+ if (error) {
+ throw jsonToError(error);
+ }
+ return response.result;
+ }
+
+ invokeMessageHandler({handler, async}, params, callback, ...extraArgs) {
+ try {
+ let promiseOrResult = handler(params, ...extraArgs);
+ if (async === 'dynamic') {
+ ({async, result: promiseOrResult} = promiseOrResult);
+ }
+ if (async) {
+ promiseOrResult.then(
+ (result) => { callback({result}); },
+ (error) => { callback({error: errorToJson(error)}); }
+ );
+ return true;
+ } else {
+ callback({result: promiseOrResult});
+ return false;
+ }
+ } catch (error) {
+ callback({error: errorToJson(error)});
+ return false;
+ }
+ }
+
// Private
_onExtensionUnloaded(error) {
@@ -222,16 +259,13 @@ const yomichan = (() => {
}
_getLogContext() {
- return {url: this._getUrl()};
+ return this._getUrl();
}
_onMessage({action, params}, sender, callback) {
- const handler = this._messageHandlers.get(action);
- if (typeof handler !== 'function') { return false; }
-
- const result = handler(params, sender);
- callback(result);
- return false;
+ const messageHandler = this._messageHandlers.get(action);
+ if (typeof messageHandler === 'undefined') { return false; }
+ return this.invokeMessageHandler(messageHandler, params, callback, sender);
}
_onMessageBackendPrepared() {