third-party-mirrors/Discord-History-Tracker
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Rewrite detection of newly loaded messages

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chylex 2023-12-20 13:13:58 +01:00
parent dd6f121059
commit d01f9ed218
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GPG Key ID: 4DE42C8F19A80548
2 changed files with 54 additions and 40 deletions
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2
app/Resources/Tracker/bootstrap.js vendored
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@ -64,9 +64,11 @@
let action = null; let action = null;
if (!DISCORD.hasMoreMessages()) { if (!DISCORD.hasMoreMessages()) {
console.debug("[DHT] Reached first message.");
action = SETTINGS.afterFirstMsg; action = SETTINGS.afterFirstMsg;
} }
if (isNoAction(action) && !anyNewMessages) { if (isNoAction(action) && !anyNewMessages) {
console.debug("[DHT] No new messages.");
action = SETTINGS.afterSavedMsg; action = SETTINGS.afterSavedMsg;
} }

92
app/Resources/Tracker/scripts/discord.js
View File

@ -28,46 +28,11 @@ class DISCORD {
* Calls the provided function with a list of messages whenever the currently loaded messages change. * Calls the provided function with a list of messages whenever the currently loaded messages change.
*/ */
static setupMessageCallback(callback) { static setupMessageCallback(callback) {
let skipsLeft = 0;
let waitForCleanup = false;
const previousMessages = new Set(); const previousMessages = new Set();
const timer = window.setInterval(() => { const onMessageElementsChanged = function() {
if (skipsLeft > 0) { const messages = DISCORD.getMessages();
--skipsLeft; const hasChanged = messages.some(message => !previousMessages.has(message.id)) || !DISCORD.hasMoreMessages();
return;
}
const view = this.getMessageOuterElement();
if (!view) {
skipsLeft = 2;
return;
}
const anyMessage = DOM.queryReactClass("message", this.getMessageOuterElement());
const messageCount = anyMessage ? anyMessage.parentElement.children.length : 0;
if (messageCount > 300) {
if (waitForCleanup) {
return;
}
skipsLeft = 3;
waitForCleanup = true;
window.setTimeout(() => {
const view = this.getMessageScrollerElement();
// noinspection JSUnusedGlobalSymbols
view.scrollTop = view.scrollHeight / 2;
}, 1);
}
else {
waitForCleanup = false;
}
const messages = this.getMessages();
const hasChanged = messages.some(message => !previousMessages.has(message.id)) || !this.hasMoreMessages();
if (!hasChanged) { if (!hasChanged) {
return; return;
@ -79,9 +44,56 @@ class DISCORD {
} }
callback(messages); callback(messages);
}, 200); };
window.DHT_ON_UNLOAD.push(() => window.clearInterval(timer)); let debounceTimer;
/**
* Do not trigger the callback too often due to autoscrolling.
*/
const onMessageElementsChangedLater = function() {
window.clearTimeout(debounceTimer);
debounceTimer = window.setTimeout(onMessageElementsChanged, 200);
};
const observer = new MutationObserver(function () {
onMessageElementsChangedLater();
});
let skipsLeft = 0;
let observedElement = null;
const observerTimer = window.setInterval(() => {
if (skipsLeft > 0) {
--skipsLeft;
return;
}
const view = this.getMessageOuterElement();
if (!view) {
skipsLeft = 1;
return;
}
if (observedElement !== null && observedElement.isConnected) {
return;
}
observedElement = view.querySelector("[data-list-id='chat-messages']");
if (observedElement) {
console.debug("[DHT] Observed message container.");
observer.observe(observedElement, { childList: true });
onMessageElementsChangedLater();
}
}, 400);
window.DHT_ON_UNLOAD.push(() => {
observer.disconnect();
observedElement = null;
window.clearInterval(observerTimer);
});
} }
/** /**