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This commit is contained in:
Bruno Windels 2019-02-17 23:58:01 +01:00
parent d87444824d
commit 952f1abddf
7 changed files with 308 additions and 7 deletions
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15
.editorconfig Normal file
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@ -0,0 +1,15 @@
# top-most EditorConfig file
root = true
# Unix-style newlines with a newline ending every file
[*]
end_of_line = lf
insert_final_newline = true
charset = utf-8
indent_style = space
indent_size = 4
# Matches multiple files with brace expansion notation
# Set default charset
# [*.{js,py}]

3
README.md
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@ -3,7 +3,7 @@ A javascript matrix client prototype, trying to minize RAM usage by offloading a
## Status ## Status
Sort of syncing, but not really yet. Syncing & storing rooms with state and timeline, next step is building minimal UI
## Troubleshooting ## Troubleshooting
@ -14,3 +14,4 @@ You need to disable the browser cache to see your updated code when refreshing
- store all fetched messages, not just synced ones - store all fetched messages, not just synced ones
- fast local search (with words index) - fast local search (with words index)
- scroll timeline with date tooltip? - scroll timeline with date tooltip?
- jump to timestamp

12
doc/TODO.md
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@ -5,12 +5,12 @@
- DONE: add eventemitter - DONE: add eventemitter
- DONE: make sync work - DONE: make sync work
- DONE: store summaries - DONE: store summaries
- setup editorconfig - DONE: setup editorconfig
- DONE: setup linting (also in editor) - DONE: setup linting (also in editor)
- DONE: store timeline - DONE: store timeline
- DONE: store state - DONE: store state
- make summary work better (name and joined/inviteCount doesn't seem to work well) - DONE: make summary work better (name and joined/inviteCount doesn't seem to work well)
- timeline doesn't seem to recover it's key well upon loading, the query in load seems to never yield an event in the persister - DONE: timeline doesn't seem to recover it's key well upon loading, the query in load seems to never yield an event in the persister
- map DOMException to something better - map DOMException to something better
- it's pretty opaque now when something idb related fails. DOMException has these fields: - it's pretty opaque now when something idb related fails. DOMException has these fields:
code: 0 code: 0
@ -22,3 +22,9 @@
- a start/stop sync button - a start/stop sync button
- a room list sorted alphabetically - a room list sorted alphabetically
- clicking on a room list, you see messages (userId -> body) - clicking on a room list, you see messages (userId -> body)
- send messages
- fill gaps with call to /messages
- create sync filter
- lazy loading members
- decide denormalized data in summary vs reading from multiple stores PER room on load
- allow Room/Summary class to be subclassed and store additional data?

74
prototypes/chrome-keys.html Normal file
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@ -0,0 +1,74 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
</head>
<body>
<script type="module">
function reqAsPromise(req) {
return new Promise((resolve, reject) => {
req.addEventListener("success", event => resolve(event.target.result));
req.addEventListener("error", event => reject(event.target.error));
});
}
function txnAsPromise(txn) {
return new Promise((resolve, reject) => {
txn.addEventListener("complete", resolve);
txn.addEventListener("abort", reject);
});
}
export function readAll(cursor) {
return new Promise((resolve, reject) => {
const results = [];
cursor.onerror = (event) => {
reject(new Error("Query failed: " + event.target.errorCode));
};
cursor.onsuccess = (event) => {
const cursor = event.target.result;
if (!cursor) {
resolve(results);
} else {
results.push(cursor.value);
cursor.continue();
}
};
});
}
async function main() {
let isNew = false;
const openReq = window.indexedDB.open("composed_binary_keys_test", 1);
openReq.onupgradeneeded = (ev) => {
const db = ev.target.result;
db.createObjectStore("test", {keyPath: ["strKey", "binKey"]});
isNew = true;
};
const db = await reqAsPromise(openReq);
// fill test store with some initial data
if (isNew) {
const txn = db.transaction("test", "readwrite");
const store = txn.objectStore("test");
store.add({strKey: "abc", binKey: new Uint8Array([0x0F, 0x00, 0x10, 0x00]).buffer});
store.add({strKey: "def", binKey: new Uint8Array([0x00, 0x10, 0x00, 0x00]).buffer});
store.add({strKey: "def", binKey: new Uint8Array([0xFF, 0x10, 0x00, 0x00]).buffer});
store.add({strKey: "ghi", binKey: new Uint8Array([0x00, 0x00, 0x40, 0x00]).buffer});
await txnAsPromise(txn);
}
const txn = db.transaction("test", "readonly");
const store = txn.objectStore("test");
const defRange = IDBKeyRange.bound(
["def", new Uint8Array([0x00, 0x00, 0x00, 0x00]).buffer],
["def", new Uint8Array([0xFF, 0xFF, 0xFF, 0xFF]).buffer],
true, true,
);
const defValues = await readAll(store.openCursor(defRange, "prev"));
console.log(defValues);
}
main();
</script>
</body>
</html>

102
prototypes/chrome-keys2.html Normal file
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@ -0,0 +1,102 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
</head>
<body>
<script type="module">
function reqAsPromise(req) {
return new Promise((resolve, reject) => {
req.addEventListener("success", event => resolve(event.target.result));
req.addEventListener("error", event => reject(event.target.error));
});
}
function txnAsPromise(txn) {
return new Promise((resolve, reject) => {
txn.addEventListener("complete", resolve);
txn.addEventListener("abort", reject);
});
}
function readAll(cursor) {
return new Promise((resolve, reject) => {
const results = [];
cursor.onerror = (event) => {
reject(new Error("Query failed: " + event.target.errorCode));
};
cursor.onsuccess = (event) => {
const cursor = event.target.result;
if (!cursor) {
resolve(results);
} else {
results.push(cursor.value);
cursor.continue();
}
};
});
}
let seed = 13423;
function prn() {
let x = Math.sin(seed++) * 10000;
return x - Math.floor(x);
}
function pad(str, len) {
return str + " ".repeat(len - str.length);
}
function formatByteArray(a) {
return `[${Array.from(a).join(",")}]`;
}
async function main() {
let isNew = false;
const openReq = window.indexedDB.open("bin_key_sorting_test", 1);
openReq.onupgradeneeded = (ev) => {
const db = ev.target.result;
db.createObjectStore("test", {keyPath: ["binKey"]});
isNew = true;
};
const db = await reqAsPromise(openReq);
// fill test store with some data
if (isNew) {
const txn = db.transaction("test", "readwrite");
const store = txn.objectStore("test");
const rndByte = () => Math.ceil(prn() * 255);
for(let i = 0; i < 10; ++i) {
const b1 = rndByte(), b2 = rndByte(), b3 = rndByte(), b4 = rndByte();
console.log(`adding key (${b1},${b2},${b3},${b4})`);
store.add({binKey: new Uint8Array([b1, b2, b3, b4])});
}
store.add({binKey: new Uint8Array([0x80, 0x00, 0x00, 0x00])});
store.add({binKey: new Uint8Array([0x00, 0x00, 0x00, 0x00])});
store.add({binKey: new Uint8Array([0x7F, 0xFF, 0xFF, 0xFF])});
store.add({binKey: new Uint8Array([0xFF, 0xFF, 0xFF, 0xFF])});
await txnAsPromise(txn);
}
const txn = db.transaction("test", "readonly");
const store = txn.objectStore("test");
const range = IDBKeyRange.bound(
Uint8Array.from([0x00, 0x00, 0x00, 0x00]).buffer,
Uint8Array.from([0xFF, 0xFF, 0xFF, 0xFF]).buffer,
// new Uint8Array([0x80, 0x00, 0x00, 0x00]).buffer, new
// Uint8Array([0x7F, 0xFF, 0xFF, 0xFF]).buffer,
);
// const values = await readAll(store.openCursor(range, "next"));
const values = await readAll(store.openCursor());
console.log(pad(`[uint8;4]`, 20) + " [int8;4]");
for (const v of values) {
const uintStr = formatByteArray(new Uint8Array(v.binKey));
const intStr = formatByteArray(new Int8Array(v.binKey));
console.log(pad(uintStr, 20) + " " + intStr);
}
}
main();
</script>
</body>
</html>

103
prototypes/chrome-keys3.html Normal file
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@ -0,0 +1,103 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
</head>
<body>
<script type="module">
function reqAsPromise(req) {
return new Promise((resolve, reject) => {
req.addEventListener("success", event => resolve(event.target.result));
req.addEventListener("error", event => reject(event.target.error));
});
}
function txnAsPromise(txn) {
return new Promise((resolve, reject) => {
txn.addEventListener("complete", resolve);
txn.addEventListener("abort", reject);
});
}
function readAll(cursor) {
return new Promise((resolve, reject) => {
const results = [];
cursor.onerror = (event) => {
reject(new Error("Query failed: " + event.target.errorCode));
};
cursor.onsuccess = (event) => {
const cursor = event.target.result;
if (!cursor) {
resolve(results);
} else {
results.push(cursor.value);
cursor.continue();
}
};
});
}
let seed = 13423;
function prn() {
let x = Math.sin(seed++) * 10000;
return x - Math.floor(x);
}
function pad(str, len) {
return str + " ".repeat(len - str.length);
}
function formatByteArray(a) {
return `[${Array.from(a).join(",")}]`;
}
async function main() {
let isNew = false;
const openReq = window.indexedDB.open("bin_key_sorting_test", 1);
openReq.onupgradeneeded = (ev) => {
const db = ev.target.result;
db.createObjectStore("test", {keyPath: ["binKey"]});
isNew = true;
};
const db = await reqAsPromise(openReq);
// fill test store with some data
if (isNew) {
const txn = db.transaction("test", "readwrite");
const store = txn.objectStore("test");
const rndByte = () => Math.ceil(prn() * 255);
for(let i = 0; i < 10; ++i) {
const b1 = rndByte(), b2 = rndByte(), b3 = rndByte(), b4 = rndByte();
console.log(`adding key (${b1},${b2},${b3},${b4})`);
store.add({binKey: new Uint8Array([b1, b2, b3, b4])});
}
store.add({binKey: new Uint8Array([0x80, 0x00, 0x00, 0x00])});
store.add({binKey: new Uint8Array([0x00, 0x00, 0x00, 0x00])});
store.add({binKey: new Uint8Array([0x7F, 0xFF, 0xFF, 0xFF])});
store.add({binKey: new Uint8Array([0xFF, 0xFF, 0xFF, 0xFF])});
await txnAsPromise(txn);
}
const txn = db.transaction("test", "readonly");
const store = txn.objectStore("test");
const range = IDBKeyRange.upperBound(
// Uint8Array.from([0x00, 0x00, 0x00, 0x00]).buffer,
Uint8Array.from([0xFF, 0xFF, 0xFF, 0xFF]).buffer,
// new Uint8Array([0x80, 0x00, 0x00, 0x00]).buffer, new
// Uint8Array([0x7F, 0xFF, 0xFF, 0xFF]).buffer,
false
);
// const values = await readAll(store.openCursor(range, "next"));
const values = await readAll(store.openCursor(range, "prev"));
console.log(pad(`[uint8;4]`, 20) + " [int8;4]");
for (const v of values) {
const uintStr = formatByteArray(new Uint8Array(v.binKey));
const intStr = formatByteArray(new Int8Array(v.binKey));
console.log(pad(uintStr, 20) + " " + intStr);
}
}
main();
</script>
</body>
</html>

4
src/matrix/storage/idb/stores/RoomTimelineStore.js
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@ -51,8 +51,8 @@ export default class RoomTimelineStore {
gap: null, gap: null,
}); });
} }
// could be gap or event
async removeEvent(roomId, sortKey) { async removeEntry(roomId, sortKey) {
this._timelineStore.delete([roomId, sortKey.buffer]); this._timelineStore.delete([roomId, sortKey.buffer]);
} }
} }