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check with server if it supports member lazy loading

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This commit is contained in:
Bruno Windels
2018-08-13 16:20:12 +02:00
parent 482eab0e2a
commit 2f4d8c3530
1 changed files with 32 additions and 1 deletions
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31
src/client.js
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@@ -203,6 +203,8 @@ function MatrixClient(opts) {
// The pushprocessor caches useful things, so keep one and re-use it // The pushprocessor caches useful things, so keep one and re-use it
this._pushProcessor = new PushProcessor(this); this._pushProcessor = new PushProcessor(this);
this._serverSupportsLazyLoading = null;
} }
utils.inherits(MatrixClient, EventEmitter); utils.inherits(MatrixClient, EventEmitter);
utils.extend(MatrixClient.prototype, MatrixBaseApis.prototype); utils.extend(MatrixClient.prototype, MatrixBaseApis.prototype);
@@ -3055,7 +3057,14 @@ MatrixClient.prototype.startClient = async function(opts) {
opts = Object.assign({}, opts); opts = Object.assign({}, opts);
if (opts.lazyLoadMembers) { if (opts.lazyLoadMembers) {
const supported = await this.doesServerSupportLazyLoading();
if (supported) {
opts.filter = await this.createFilter(LAZY_LOADING_SYNC_FILTER); opts.filter = await this.createFilter(LAZY_LOADING_SYNC_FILTER);
} else {
console.log("LL: lazy loading requested but not supported " +
"by server, so disabling");
opts.lazyLoadMembers = false;
}
} }
opts.crypto = this._crypto; opts.crypto = this._crypto;
@@ -3093,6 +3102,28 @@ MatrixClient.prototype.stopClient = function() {
global.clearTimeout(this._checkTurnServersTimeoutID); global.clearTimeout(this._checkTurnServersTimeoutID);
}; };
/*
* Query the server to see if it support members lazy loading
* @return {Promise<boolean>} true if server supports lazy loading
*/
MatrixClient.prototype.doesServerSupportLazyLoading = async function() {
if (this._serverSupportsLazyLoading === null) {
const response = await this._http.request(
undefined, // callback
"GET", "/_matrix/client/versions",
undefined, // queryParams
undefined, // data
{
prefix: '',
},
);
const unstableFeatures = response["unstable_features"];
this._serverSupportsLazyLoading =
unstableFeatures && unstableFeatures["m.lazy_load_members"];
}
return this._serverSupportsLazyLoading;
};
/* /*
* Set a function which is called when /sync returns a 'limited' response. * Set a function which is called when /sync returns a 'limited' response.
* It is called with a room ID and returns a boolean. It should return 'true' if the SDK * It is called with a room ID and returns a boolean. It should return 'true' if the SDK