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Et2Tree autoload

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- Autoload when initial options are empty (calendar PM integration)
- Autoload when nodes are marked as open, but no children were provided
This commit is contained in:
nathan 2024-02-15 16:16:25 -07:00
parent 9e1f474f24
commit 4b8d36c09f
1 changed files with 31 additions and 7 deletions
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38
api/js/etemplate/Et2Tree/Et2Tree.ts
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@ -104,6 +104,23 @@ export class Et2Tree extends Et2WidgetWithSelectMixin(LitElement)
this._optionTemplate = this._optionTemplate.bind(this);
}
firstUpdated()
{
// This is somehow required to set the autoload URL properly?
// TODO: Make this not needed, either this.autoload_url should be properly set or go away in favour of using this.autoload
this.createTree();
// Check if top level should be autoloaded
if(this.autoloading && !this._selectOptions?.length)
{
this.handleLazyLoading({item: this._selectOptions}).then((results) =>
{
this._selectOptions = results?.item ?? [];
this.requestUpdate("_selectOptions");
})
}
}
//Sl-Trees handle their own onClick events
_handleClick(_ev)
{
@ -305,7 +322,7 @@ export class Et2Tree extends Et2WidgetWithSelectMixin(LitElement)
{
new_options = <TreeItemData[]><unknown>find_select_options(this)[1];
}
if(new_options.length)
if(new_options?.length)
{
this._selectOptions = new_options;
}
@ -593,6 +610,17 @@ export class Et2Tree extends Et2WidgetWithSelectMixin(LitElement)
}
// Check to see if node is marked as open with no children. If autoloadable, load the children
const expandState = (this.calculateExpandState(selectOption));
const lazy = selectOption.item?.length === 0 && selectOption.child
if(expandState && this.autoloading && lazy)
{
this.updateComplete.then(() =>
{
this.getDomNode(selectOption.id)?.dispatchEvent(new CustomEvent("sl-lazy-load"));
})
}
return html`
<sl-tree-item
part="item"
@ -600,8 +628,8 @@ export class Et2Tree extends Et2WidgetWithSelectMixin(LitElement)
id=${selectOption.id}
title=${selectOption.tooltip || nothing}
?selected=${typeof this.value == "string" && this.value == selectOption.id || typeof this.value?.includes == "function" && this.value.includes(selectOption.id)}
?expanded=${(this.calculateExpandState(selectOption))}
?lazy=${selectOption.item?.length === 0 && selectOption.child}
?expanded=${expandState}
?lazy=${lazy}
?focused=${selectOption.focused || nothing}
@sl-lazy-load=${(event) => {
// No need for this to bubble up, we'll handle it (otherwise the parent leaf will load too)
@ -765,10 +793,6 @@ export class Et2Tree extends Et2WidgetWithSelectMixin(LitElement)
protected updated(_changedProperties: PropertyValues)
{
// This is somehow required to set the autoload URL properly?
// TODO: Make this not needed, either this.autoload_url should be properly set or go away in favour of using this.autoload
this.createTree();
this._link_actions(this.actions)
super.updated(_changedProperties);
}