import { Component, EmitType, isUndefined, Browser, compile, isNullOrUndefined, SanitizeHtmlHelper, animationMode } from '@syncfusion/ej2-base';import { Property, INotifyPropertyChanged, NotifyPropertyChanges, ChildProperty, Complex } from '@syncfusion/ej2-base';import { Event, EventHandler, KeyboardEvents, KeyboardEventArgs } from '@syncfusion/ej2-base';import { rippleEffect, Effect, Animation, AnimationOptions, RippleOptions, remove } from '@syncfusion/ej2-base';import { Draggable, DragEventArgs, Droppable, DropEventArgs } from '@syncfusion/ej2-base';import { getElement } from '@syncfusion/ej2-base';import { addClass, removeClass, closest, matches, detach, select, selectAll, isVisible, append } from '@syncfusion/ej2-base';import { DataManager, Query } from '@syncfusion/ej2-data';import { isNullOrUndefined as isNOU, Touch, TapEventArgs, getValue, setValue, extend, merge, attributes } from '@syncfusion/ej2-base';import { ListBase, ListBaseOptions, AriaAttributesMapping, FieldsMapping } from '@syncfusion/ej2-lists';import { createCheckBox, rippleMouseHandler } from '@syncfusion/ej2-buttons';import { Input, InputObject } from '@syncfusion/ej2-inputs';import { createSpinner, showSpinner, hideSpinner } from '@syncfusion/ej2-popups';
import {ExpandOnSettings,SortOrder,FailureEventArgs,DataBoundEventArgs,DataSourceChangedEventArgs,DrawNodeEventArgs,NodeKeyPressEventArgs,NodeCheckEventArgs,NodeClickEventArgs,NodeExpandEventArgs,DragAndDropEventArgs,NodeEditEventArgs,NodeSelectEventArgs} from "./treeview";
import {ComponentModel} from '@syncfusion/ej2-base';
/**
* Interface for a class FieldsSettings
*/
export interface FieldsSettingsModel {
/**
* Binds the field settings for child nodes or mapping field for nested nodes objects that contain array of JSON objects.
*/
child?: string | FieldsSettingsModel;
/**
* Specifies the array of JavaScript objects or instance of DataManager to populate the nodes.
*
* @default []
* @aspDatasourceNullIgnore
* @isGenericType true
*/
dataSource?: DataManager | { [key: string]: Object }[];
/**
* Specifies the mapping field for expand state of the TreeView node.
*/
expanded?: string;
/**
* Specifies the mapping field for hasChildren to check whether a node has child nodes or not.
*/
hasChildren?: string;
/**
* Specifies the mapping field for htmlAttributes to be added to the TreeView node.
*/
htmlAttributes?: string;
/**
* Specifies the mapping field for icon class of each TreeView node that will be added before the text.
*/
iconCss?: string;
/**
* Specifies the ID field mapped in dataSource.
*/
id?: string;
/**
* Specifies the mapping field for image URL of each TreeView node where image will be added before the text.
*/
imageUrl?: string;
/**
* Specifies the field for checked state of the TreeView node.
*/
isChecked?: string;
/**
* Specifies the parent ID field mapped in dataSource.
*/
parentID?: string;
/**
* Defines the external [`Query`](https://ej2.syncfusion.com/documentation/api/data/query/)
* that will execute along with data processing.
*
* @default null
*/
query?: Query;
/**
* Specifies whether the node can be selected by users or not
* When set to false, the user interaction is prevented for the corresponding node.
*/
selectable?: string;
/**
* Specifies the mapping field for selected state of the TreeView node.
*/
selected?: string;
/**
* Specifies the table name used to fetch data from a specific table in the server.
*/
tableName?: string;
/**
* Specifies the mapping field for text displayed as TreeView node's display text.
*/
text?: string;
/**
* Specifies the mapping field for tooltip that will be displayed as hovering text of the TreeView node.
*/
tooltip?: string;
/**
* Specifies the mapping field for navigateUrl to be added as hyper-link of the TreeView node.
*/
navigateUrl?: string;
}
/**
* Interface for a class ActionSettings
*/
export interface ActionSettingsModel {
/**
* Specifies the type of animation.
*
* @default 'SlideDown'
*/
effect?: Effect;
/**
* Specifies the duration to animate.
*
* @default 400
*/
duration?: number;
/**
* Specifies the animation timing function.
*
* @default 'linear'
*/
easing?: string;
}
/**
* Interface for a class NodeAnimationSettings
*/
export interface NodeAnimationSettingsModel {
/**
* Specifies the animation that applies on collapsing the nodes.
*
* @default { effect: 'SlideUp', duration: 400, easing: 'linear' }
*/
collapse?: ActionSettingsModel;
/**
* Specifies the animation that applies on expanding the nodes.
*
* @default { effect: 'SlideDown', duration: 400, easing: 'linear' }
*/
expand?: ActionSettingsModel;
}
/**
* Interface for a class TreeView
*/
export interface TreeViewModel extends ComponentModel{
/**
* Indicates whether the TreeView allows drag and drop of nodes. To drag and drop a node in
* desktop, hold the mouse on the node, drag it to the target node and drop the node by releasing
* the mouse. For touch devices, drag and drop operation is performed by touch, touch move
* and touch end. For more information on drag and drop nodes concept, refer to
* [Drag and Drop](../../treeview/drag-and-drop/).
*
* @default false
*/
allowDragAndDrop?: boolean;
/**
* Enables or disables editing of the text in the TreeView node. When `allowEditing` property is set
* to true, the TreeView allows you to edit the node by double clicking the node or by navigating to
* the node and pressing **F2** key. For more information on node editing, refer
* to [Node Editing](../../treeview/node-editing/).
*
* @default false
*/
allowEditing?: boolean;
/**
* Enables or disables multi-selection of nodes. To select multiple nodes:
* * Select the nodes by holding down the **Ctrl** key while clicking on the nodes.
* * Select consecutive nodes by clicking the first node to select and hold down the **Shift** key
* and click the last node to select.
*
* For more information on multi-selection, refer to
* [Multi-Selection](../../treeview/multiple-selection/).
*
* @default false
*/
allowMultiSelection?: boolean;
/**
* Enables or disables text wrapping when text exceeds the bounds in the TreeView node.
* When the allowTextWrap property is set to true, the TreeView node text content will wrap to the next line
* when it exceeds the width of the TreeView node.
* The TreeView node height will be adjusted automatically based on the TreeView node content.
*
* @default false
*/
allowTextWrap?: boolean;
/**
* Specifies the type of animation applied on expanding and collapsing the nodes along with duration.
*
* @default {expand: { effect: 'SlideDown', duration: 400, easing: 'linear' },
* collapse: { effect: 'SlideUp', duration: 400, easing: 'linear' }}
*/
animation?: NodeAnimationSettingsModel;
/**
* The `checkedNodes` property is used to set the nodes that need to be checked.
* This property returns the checked nodes ID in the TreeView component.
* The `checkedNodes` property depends upon the value of `showCheckBox` property.
* For more information on checkedNodes, refer to
* [checkedNodes](../../treeview/check-box#checked-nodes).
* ```html
*
* ```
* ```typescript
* let treeObj: TreeView = new TreeView({
* fields: { dataSource: hierarchicalData, id: 'id', text: 'name', child: 'subChild' },
* showCheckBox: true,
* checkedNodes: ['01-01','02']
* });
* treeObj.appendTo('#tree');
* ```
*
* @default []
*/
checkedNodes?: string[];
/**
* Determines whether the disabled children will be checked or not if their parent is checked.
*
* @default true
*/
checkDisabledChildren?: boolean;
/**
* Specifies one or more than one CSS classes to be added with root element of the TreeView to help customize the appearance of the component.
* ```html
*
* ```
* ```typescript
* let treeObj: TreeView = new TreeView({
* fields: { dataSource: hierarchicalData, id: 'id', text: 'name', child: 'subChild' },
* cssClass: 'e-custom e-tree'
* });
* treeObj.appendTo('#tree');
* ```
* ```css
* .e-custom .e-tree {
* max-width: 600px;
* }
* .e-custom .e-list-item {
* padding: 10px 0;
* }
* ```
*
* @default ''
*/
cssClass?: string;
/**
* Specifies a value that indicates whether the TreeView component is disabled or not.
* When set to true, user interaction will not be occurred in TreeView.
*
* @default false
*/
disabled?: boolean;
/**
* Specifies the target in which the draggable element can be moved and dropped.
* By default, the draggable element movement occurs in the page.
* ```html
*
* ```
* ```typescript
* let treeObj: TreeView = new TreeView({
* fields: { dataSource: hierarchicalData, id: 'id', text: 'name', child: 'subChild' },
* dragArea: '.control_wrapper'
* });
* treeObj.appendTo('#tree');
* ```
* ```css
* .control_wrapper {
* width: 500px;
* margin-left: 100px;
* }
* ```
*
* @default null
*/
dragArea?: HTMLElement | string;
/**
* Specifies whether to display or remove the untrusted HTML values in the TreeView component.
* If 'enableHtmlSanitizer' set to true, the component will sanitize any suspected untrusted strings and scripts before rendering them.
* ```html
*
* ```
* ```typescript
* let treeObj: TreeView = new TreeView({
* fields: { dataSource: hierarchicalData, id: 'id', text: 'name', child: 'subChild' },
* enableHtmlSanitizer: true
* });
* treeObj.appendTo('#tree');
* ```
*
* @default true
*/
enableHtmlSanitizer?: boolean;
/**
* Enables or disables persisting TreeView state between page reloads. If enabled, following APIs will persist.
* 1. `selectedNodes` - Represents the nodes that are selected in the TreeView component.
* 2. `checkedNodes` - Represents the nodes that are checked in the TreeView component.
* 3. `expandedNodes` - Represents the nodes that are expanded in the TreeView component.
*
* @default false
*/
enablePersistence?: boolean;
/**
* Represents the expanded nodes in the TreeView component. We can set the nodes that need to be
* expanded or get the ID of the nodes that are currently expanded by using this property.
* ```html
*
* ```
* ```typescript
*
* ```
*
* @default []
*/
expandedNodes?: string[];
/**
* Specifies the action on which the node expands or collapses.
* The available actions :
* `Click` - The expand/collapse operation happens when you single-click on the node in desktop.
* `DblClick` - The expand/collapse operation happens when you double-click on the node in desktop.
* `None` - The expand/collapse operation will not happen.
* In mobile devices, the node expand/collapse action happens on single tap.
* Here ExpandOn attribute is set to single click property also can use double click and none property.
* ```html
*
* ```
* ```typescript
* let treeObj: TreeView = new TreeView({
* fields: { dataSource: hierarchicalData, id: 'id', text: 'name', child: 'subChild' },
* expandOn: 'Click'
* });
* treeObj.appendTo('#tree');
* ```
*
* @default 'Auto'
*/
expandOn?: ExpandOnSettings;
/**
* Specifies the data source and mapping fields to render TreeView nodes.
*
* @default {id: 'id', text: 'text', dataSource: [], child: 'child', parentID: 'parentID', hasChildren: 'hasChildren',
* expanded: 'expanded', htmlAttributes: 'htmlAttributes', iconCss: 'iconCss', imageUrl: 'imageUrl', isChecked: 'isChecked',
* query: null, selected: 'selected', tableName: null, tooltip: 'tooltip', navigateUrl: 'navigateUrl'}
*/
fields?: FieldsSettingsModel;
/**
* On enabling this property, the entire row of the TreeView node gets selected by clicking a node.
* When disabled only the corresponding node's text gets selected.
* For more information on Fields concept, refer to
* [Fields](../../treeview/data-binding#local-data).
*
* @default true
*/
fullRowSelect?: boolean;
/**
* By default, the load on demand (Lazy load) is set to true. By disabling this property, all the tree nodes are rendered at the
* beginning itself.
*
* @default true
*/
loadOnDemand?: boolean;
/**
* Overrides the global culture and localization value for this component. Default global culture is 'en-US'.
*
* @private
*/
locale?: string;
/**
* Specifies a template to render customized content for all the nodes. If the `nodeTemplate` property
* is set, the template content overrides the displayed node text. The property accepts template string
* [template string](https://ej2.syncfusion.com/documentation/common/template-engine/)
* or HTML element ID holding the content. For more information on template concept, refer to
* [Template](../../treeview/template/).
*
* @default null
* @angularType string | object
* @reactType string | function | JSX.Element
* @vueType string | function
* @aspType string
*/
nodeTemplate?: string | Function;
/**
* Represents the selected nodes in the TreeView component. We can set the nodes that need to be
* selected or get the ID of the nodes that are currently selected by using this property.
* On enabling `allowMultiSelection` property we can select multiple nodes and on disabling
* it we can select only a single node.
* For more information on selectedNodes, refer to
* [selectedNodes](../../treeview/multiple-selection#selected-nodes).
* ```html
*
* ```
* ```typescript
* let treeObj: TreeView = new TreeView({
* fields: { dataSource: hierarchicalData, id: 'id', text: 'name', child: 'subChild' },
* allowMultiSelection: true,
* selectedNodes: ['01','02']
* });
* treeObj.appendTo('#tree');
* ```
*
* @default []
*/
selectedNodes?: string[];
/**
* Specifies a value that indicates whether the nodes are sorted in the ascending or descending order,
* or are not sorted at all. The available types of sort order are,
* * `None` - The nodes are not sorted.
* * `Ascending` - The nodes are sorted in the ascending order.
* * `Descending` - The nodes are sorted in the ascending order.
*
* @default 'None'
*/
sortOrder?: SortOrder;
/**
* Indicates that the nodes will display CheckBoxes in the TreeView.
* The CheckBox will be displayed next to the expand/collapse icon of the node. For more information on CheckBoxes, refer to
* [CheckBox](../../treeview/check-box/).
*
* @default false
*/
showCheckBox?: boolean;
/**
* Specifies whether the item should be checked or unchecked when the node is clicked.
*
* @default false
*/
checkOnClick?: boolean;
/**
* Allow us to specify the parent and child nodes to get auto check while we check or uncheck a node.
*
* @default true
*/
autoCheck?: boolean;
/**
* If this property is set to true, then the entire TreeView node will be navigate-able instead of text element.
*
* @default false
*/
fullRowNavigable?: boolean;
/**
* Event callback that is raised while any TreeView action failed to fetch the desired results.
*
* @event actionFailure
*/
actionFailure?: EmitType;
/**
* Event callback that is raised when the TreeView component is created successfully.
*
* @event created
*/
created?: EmitType