44r0n7/privacy.sexy
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Improve performance of selecting scripts

Browse Source 
Increase performance by only notifying GUI about changes in selection
when there really is a change. It removes extra processing from all
event listeners that act on selection state change.
This commit is contained in:
undergroundwires
2022-01-07 22:06:05 +01:00
parent 99fb4c73f5
commit 8e96c19126
2 changed files with 157 additions and 74 deletions
Download Patch File Download Diff File Expand all files Collapse all files

41
src/application/Context/State/Selection/UserSelection.ts
View File

@@ -109,6 +109,9 @@ export class UserSelection implements IUserSelection {
.getAllScripts()
.filter((script) => !this.scripts.exists(script.id))
.map((script) => new SelectedScript(script, false));
if (scriptsToSelect.length === 0) {
return;
}
for (const script of scriptsToSelect) {
this.scripts.addItem(script);
}
@@ -116,6 +119,9 @@ export class UserSelection implements IUserSelection {
}
public deselectAll(): void {
if (this.scripts.length === 0) {
return;
}
const selectedScriptIds = this.scripts.getItems().map((script) => script.id);
for (const scriptId of selectedScriptIds) {
this.scripts.removeItem(scriptId);
@@ -127,20 +133,35 @@ export class UserSelection implements IUserSelection {
if (!scripts || scripts.length === 0) {
throw new Error('Scripts are empty. Use deselectAll() if you want to deselect everything');
}
// Unselect from selected scripts
if (this.scripts.length !== 0) {
this.scripts.getItems()
.filter((existing) => !scripts.some((script) => existing.id === script.id))
.map((script) => script.id)
.forEach((scriptId) => this.scripts.removeItem(scriptId));
let totalChanged = 0;
totalChanged += this.unselectMissingWithoutNotifying(scripts);
totalChanged += this.selectNewWithoutNotifying(scripts);
if (totalChanged > 0) {
this.changed.notify(this.scripts.getItems());
}
// Select from unselected scripts
}
private unselectMissingWithoutNotifying(scripts: readonly IScript[]): number {
if (this.scripts.length === 0 || scripts.length === 0) {
return 0;
}
const existingItems = this.scripts.getItems();
const missingIds = existingItems
.filter((existing) => !scripts.some((script) => existing.id === script.id))
.map((script) => script.id);
for (const id of missingIds) {
this.scripts.removeItem(id);
}
return missingIds.length;
}
private selectNewWithoutNotifying(scripts: readonly IScript[]): number {
const unselectedScripts = scripts
.filter((script) => !this.scripts.exists(script.id))
.map((script) => new SelectedScript(script, false));
for (const toSelect of unselectedScripts) {
this.scripts.addItem(toSelect);
for (const newScript of unselectedScripts) {
this.scripts.addItem(newScript);
}
this.changed.notify(this.scripts.getItems());
return unselectedScripts.length;
}
}