mirror of
https://github.com/vector-im/hydrogen-web.git
synced 2024-12-23 03:25:12 +01:00
fixes and tests for add, remove, move and update
This commit is contained in:
parent
290886a5eb
commit
2e362d1bbd
@ -62,19 +62,21 @@ export default class SortedMapList extends BaseObservableList {
|
||||
constructor(sourceMap, comparator) {
|
||||
super();
|
||||
this._sourceMap = sourceMap;
|
||||
this._comparator = comparator;
|
||||
this._comparator = (a, b) => comparator(a.value, b.value);
|
||||
this._sortedPairs = null;
|
||||
this._mapSubscription = null;
|
||||
}
|
||||
|
||||
onAdd(key, value) {
|
||||
const idx = sortedIndex(this._sortedPairs, value, this._comparator);
|
||||
this._sortedPairs.splice(idx, 0, {key, value});
|
||||
const pair = {key, value};
|
||||
const idx = sortedIndex(this._sortedPairs, pair, this._comparator);
|
||||
this._sortedPairs.splice(idx, 0, pair);
|
||||
this.emitAdd(idx, value);
|
||||
}
|
||||
|
||||
onRemove(key, value) {
|
||||
const idx = sortedIndex(this._sortedPairs, value, this._comparator);
|
||||
const pair = {key, value};
|
||||
const idx = sortedIndex(this._sortedPairs, pair, this._comparator);
|
||||
// assert key === this._sortedPairs[idx].key;
|
||||
this._sortedPairs.splice(idx, 1);
|
||||
this.emitRemove(idx, value);
|
||||
@ -83,11 +85,12 @@ export default class SortedMapList extends BaseObservableList {
|
||||
onUpdate(key, value, params) {
|
||||
// TODO: suboptimal for performance, see above for idea with BST to speed this up if we need to
|
||||
const oldIdx = this._sortedPairs.findIndex(p => p.key === key);
|
||||
// neccesary to remove item from array before
|
||||
// neccesary to remove pair from array before
|
||||
// doing sortedIndex as it relies on being sorted
|
||||
this._sortedPairs.splice(oldIdx, 1);
|
||||
const newIdx = sortedIndex(this._sortedPairs, value, this._comparator);
|
||||
this._sortedPairs.splice(newIdx, 0, {key, value});
|
||||
const pair = {key, value};
|
||||
const newIdx = sortedIndex(this._sortedPairs, pair, this._comparator);
|
||||
this._sortedPairs.splice(newIdx, 0, pair);
|
||||
if (oldIdx !== newIdx) {
|
||||
this.emitMove(oldIdx, newIdx, value);
|
||||
}
|
||||
@ -103,8 +106,8 @@ export default class SortedMapList extends BaseObservableList {
|
||||
this._mapSubscription = this._sourceMap.subscribe(this);
|
||||
this._sortedPairs = new Array(this._sourceMap.size);
|
||||
let i = 0;
|
||||
for (let [, value] of this._sourceMap) {
|
||||
this._sortedPairs[i] = value;
|
||||
for (let [key, value] of this._sourceMap) {
|
||||
this._sortedPairs[i] = {key, value};
|
||||
++i;
|
||||
}
|
||||
this._sortedPairs.sort(this._comparator);
|
||||
@ -118,7 +121,7 @@ export default class SortedMapList extends BaseObservableList {
|
||||
}
|
||||
|
||||
get(index) {
|
||||
return this._sortedPairs[index];
|
||||
return this._sortedPairs[index].value;
|
||||
}
|
||||
|
||||
get length() {
|
||||
@ -126,7 +129,16 @@ export default class SortedMapList extends BaseObservableList {
|
||||
}
|
||||
|
||||
[Symbol.iterator]() {
|
||||
return this._sortedPairs.values();
|
||||
const it = this._sortedPairs.values();
|
||||
return {
|
||||
next() {
|
||||
const v = it.next();
|
||||
if (v.value) {
|
||||
v.value = v.value.value;
|
||||
}
|
||||
return v;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -136,11 +148,15 @@ import ObservableMap from "../map/ObservableMap.js";
|
||||
export function tests() {
|
||||
return {
|
||||
test_sortIndex(assert) {
|
||||
let idx = sortedIndex([1, 5, 6, 8], 0, (a, b) => a - b);
|
||||
const a = [1, 5, 6, 8];
|
||||
const cmp = (a, b) => a - b;
|
||||
let idx = sortedIndex(a, 0, cmp);
|
||||
assert.equal(idx, 0);
|
||||
idx = sortedIndex([1, 5, 6, 8], 3, (a, b) => a - b);
|
||||
idx = sortedIndex(a, 3, cmp);
|
||||
assert.equal(idx, 1);
|
||||
idx = sortedIndex([1, 5, 6, 8], 8, (a, b) => a - b);
|
||||
idx = sortedIndex(a, 5, cmp);
|
||||
assert.equal(idx, 1);
|
||||
idx = sortedIndex(a, 8, cmp);
|
||||
assert.equal(idx, 3);
|
||||
},
|
||||
|
||||
@ -167,7 +183,100 @@ export function tests() {
|
||||
const list = new SortedMapList(map, (a, b) => a - b);
|
||||
list.subscribe({}); //needed to populate iterator
|
||||
assert.deepEqual(Array.from(list), [-5, 6, 50]);
|
||||
assert.equal(list.length, 3);
|
||||
},
|
||||
|
||||
test_add(assert) {
|
||||
const map = new ObservableMap([["a", 50], ["b", 6], ["c", -5]]);
|
||||
const list = new SortedMapList(map, (a, b) => a - b);
|
||||
let fired = 0;
|
||||
list.subscribe({
|
||||
onAdd(idx, value) {
|
||||
fired++;
|
||||
assert.equal(idx, 2);
|
||||
assert.equal(value, 20);
|
||||
}
|
||||
});
|
||||
map.add("d", 20);
|
||||
assert.equal(fired, 1);
|
||||
assert.equal(list.length, 4);
|
||||
},
|
||||
|
||||
test_remove(assert) {
|
||||
const map = new ObservableMap([["a", 50], ["b", 6], ["c", -5]]);
|
||||
const list = new SortedMapList(map, (a, b) => a - b);
|
||||
let fired = 0;
|
||||
list.subscribe({
|
||||
onRemove(idx, value) {
|
||||
fired++;
|
||||
assert.equal(idx, 2);
|
||||
assert.equal(value, 50);
|
||||
}
|
||||
});
|
||||
map.remove("a");
|
||||
assert.equal(fired, 1);
|
||||
assert.equal(list.length, 2);
|
||||
},
|
||||
|
||||
test_move_reference(assert) {
|
||||
const a = {number: 3};
|
||||
const map = new ObservableMap([
|
||||
["a", a],
|
||||
["b", {number: 11}],
|
||||
["c", {number: 1}],
|
||||
]);
|
||||
const list = new SortedMapList(map, (a, b) => a.number - b.number);
|
||||
let updateFired = 0, moveFired = 0;
|
||||
list.subscribe({
|
||||
onUpdate(idx, value, param) {
|
||||
updateFired++;
|
||||
assert.equal(idx, 2);
|
||||
assert.equal(value, a);
|
||||
assert.equal(param, "number");
|
||||
},
|
||||
|
||||
onMove(oldIdx, newIdx, value) {
|
||||
moveFired++;
|
||||
assert.equal(oldIdx, 1);
|
||||
assert.equal(newIdx, 2);
|
||||
assert.equal(value, a);
|
||||
}
|
||||
});
|
||||
a.number = 111;
|
||||
map.update("a", "number");
|
||||
assert.equal(moveFired, 1);
|
||||
assert.equal(updateFired, 1);
|
||||
},
|
||||
|
||||
test_update_without_move(assert) {
|
||||
const a = {number: 3};
|
||||
const map = new ObservableMap([
|
||||
["a", a],
|
||||
["b", {number: 11}],
|
||||
["c", {number: 1}],
|
||||
]);
|
||||
const list = new SortedMapList(map, (a, b) => a.number - b.number);
|
||||
let updateFired = 0, moveFired = 0;
|
||||
list.subscribe({
|
||||
onUpdate(idx, value, param) {
|
||||
updateFired++;
|
||||
assert.equal(idx, 1);
|
||||
assert.equal(value, a);
|
||||
assert.equal(param, "number");
|
||||
},
|
||||
|
||||
onMove() {
|
||||
moveFired++;
|
||||
}
|
||||
});
|
||||
assert.deepEqual(Array.from(list).map(v => v.number), [1, 3, 11]);
|
||||
// asume some part of a that doesn't affect
|
||||
// sorting order has changed here
|
||||
map.update("a", "number");
|
||||
assert.equal(moveFired, 0);
|
||||
assert.equal(updateFired, 1);
|
||||
assert.deepEqual(Array.from(list).map(v => v.number), [1, 3, 11]);
|
||||
},
|
||||
}
|
||||
}
|
||||
//#endif
|
||||
|
Loading…
Reference in New Issue
Block a user