@clr/angular
Version:
Angular components for Clarity
98 lines • 12.8 kB
JavaScript
/*
* Copyright (c) 2016-2023 VMware, Inc. All Rights Reserved.
* This software is released under MIT license.
* The full license information can be found in LICENSE in the root directory of this project.
*/
import { BehaviorSubject } from 'rxjs';
import { ClrSelectedState } from './selected-state.enum';
export class TreeNodeModel {
constructor() {
this.loading$ = new BehaviorSubject(false);
this.selected = new BehaviorSubject(ClrSelectedState.UNSELECTED);
/*
* Being able to push this down to the RecursiveTreeNodeModel would require too much work on the angular components
* right now for them to know which kind of model they are using. So I'm lifting the public properties to this
* abstract parent class for now and we can revisit it later, when we're not facing such a close deadline.
*/
this._loading = false;
}
get loading() {
return this._loading;
}
set loading(isLoading) {
this._loading = isLoading;
this.loading$.next(isLoading);
}
destroy() {
// Just to be safe
this.selected.complete();
}
// Propagate by default when eager, don't propagate in the lazy-loaded tree.
setSelected(state, propagateUp, propagateDown) {
if (state === this.selected.value) {
return;
}
this.selected.next(state);
if (propagateDown && state !== ClrSelectedState.INDETERMINATE && this.children) {
this.children.forEach(child => child.setSelected(state, false, true));
}
if (propagateUp && this.parent) {
this.parent._updateSelectionFromChildren();
}
}
toggleSelection(propagate) {
// Both unselected and indeterminate toggle to selected
const newState = this.selected.value === ClrSelectedState.SELECTED ? ClrSelectedState.UNSELECTED : ClrSelectedState.SELECTED;
// NOTE: we always propagate selection up in this method because it is only called when the user takes an action.
// It should never be called from lifecycle hooks or app-provided inputs.
this.setSelected(newState, true, propagate);
}
/*
* Internal, but needs to be called by other nodes
*/
_updateSelectionFromChildren() {
const newState = this.computeSelectionStateFromChildren();
if (newState === this.selected.value) {
return;
}
this.selected.next(newState);
if (this.parent) {
this.parent._updateSelectionFromChildren();
}
}
computeSelectionStateFromChildren() {
let oneSelected = false;
let oneUnselected = false;
// Using a good old for loop to exit as soon as we can tell, for better performance on large trees.
for (const child of this.children) {
switch (child.selected.value) {
case ClrSelectedState.INDETERMINATE:
return ClrSelectedState.INDETERMINATE;
case ClrSelectedState.SELECTED:
oneSelected = true;
if (oneUnselected) {
return ClrSelectedState.INDETERMINATE;
}
break;
case ClrSelectedState.UNSELECTED:
default:
// Default is the same as unselected, in case an undefined somehow made it all the way here.
oneUnselected = true;
if (oneSelected) {
return ClrSelectedState.INDETERMINATE;
}
break;
}
}
if (!oneSelected) {
return ClrSelectedState.UNSELECTED;
}
else if (!oneUnselected) {
return ClrSelectedState.SELECTED;
}
else {
return ClrSelectedState.UNSELECTED;
}
}
}
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"tree-node.model.js","sourceRoot":"","sources":["../../../../../../projects/angular/src/data/tree-view/models/tree-node.model.ts"],"names":[],"mappings":"AAAA;;;;GAIG;AAEH,OAAO,EAAE,eAAe,EAAE,MAAM,MAAM,CAAC;AAEvC,OAAO,EAAE,gBAAgB,EAAE,MAAM,uBAAuB,CAAC;AAEzD,MAAM,OAAgB,aAAa;IAAnC;QAKE,aAAQ,GAAG,IAAI,eAAe,CAAC,KAAK,CAAC,CAAC;QACtC,aAAQ,GAAG,IAAI,eAAe,CAAC,gBAAgB,CAAC,UAAU,CAAC,CAAC;QAE5D;;;;WAIG;QACK,aAAQ,GAAG,KAAK,CAAC;IA8F3B,CAAC;IAlFC,IAAI,OAAO;QACT,OAAO,IAAI,CAAC,QAAQ,CAAC;IACvB,CAAC;IACD,IAAI,OAAO,CAAC,SAAkB;QAC5B,IAAI,CAAC,QAAQ,GAAG,SAAS,CAAC;QAC1B,IAAI,CAAC,QAAQ,CAAC,IAAI,CAAC,SAAS,CAAC,CAAC;IAChC,CAAC;IAED,OAAO;QACL,kBAAkB;QAClB,IAAI,CAAC,QAAQ,CAAC,QAAQ,EAAE,CAAC;IAC3B,CAAC;IAED,4EAA4E;IAC5E,WAAW,CAAC,KAAuB,EAAE,WAAoB,EAAE,aAAsB;QAC/E,IAAI,KAAK,KAAK,IAAI,CAAC,QAAQ,CAAC,KAAK,EAAE;YACjC,OAAO;SACR;QACD,IAAI,CAAC,QAAQ,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC;QAC1B,IAAI,aAAa,IAAI,KAAK,KAAK,gBAAgB,CAAC,aAAa,IAAI,IAAI,CAAC,QAAQ,EAAE;YAC9E,IAAI,CAAC,QAAQ,CAAC,OAAO,CAAC,KAAK,CAAC,EAAE,CAAC,KAAK,CAAC,WAAW,CAAC,KAAK,EAAE,KAAK,EAAE,IAAI,CAAC,CAAC,CAAC;SACvE;QACD,IAAI,WAAW,IAAI,IAAI,CAAC,MAAM,EAAE;YAC9B,IAAI,CAAC,MAAM,CAAC,4BAA4B,EAAE,CAAC;SAC5C;IACH,CAAC;IAED,eAAe,CAAC,SAAkB;QAChC,uDAAuD;QACvD,MAAM,QAAQ,GACZ,IAAI,CAAC,QAAQ,CAAC,KAAK,KAAK,gBAAgB,CAAC,QAAQ,CAAC,CAAC,CAAC,gBAAgB,CAAC,UAAU,CAAC,CAAC,CAAC,gBAAgB,CAAC,QAAQ,CAAC;QAC9G,iHAAiH;QACjH,yEAAyE;QACzE,IAAI,CAAC,WAAW,CAAC,QAAQ,EAAE,IAAI,EAAE,SAAS,CAAC,CAAC;IAC9C,CAAC;IAED;;OAEG;IACH,4BAA4B;QAC1B,MAAM,QAAQ,GAAG,IAAI,CAAC,iCAAiC,EAAE,CAAC;QAC1D,IAAI,QAAQ,KAAK,IAAI,CAAC,QAAQ,CAAC,KAAK,EAAE;YACpC,OAAO;SACR;QACD,IAAI,CAAC,QAAQ,CAAC,IAAI,CAAC,QAAQ,CAAC,CAAC;QAC7B,IAAI,IAAI,CAAC,MAAM,EAAE;YACf,IAAI,CAAC,MAAM,CAAC,4BAA4B,EAAE,CAAC;SAC5C;IACH,CAAC;IAEO,iCAAiC;QACvC,IAAI,WAAW,GAAG,KAAK,CAAC;QACxB,IAAI,aAAa,GAAG,KAAK,CAAC;QAC1B,mGAAmG;QACnG,KAAK,MAAM,KAAK,IAAI,IAAI,CAAC,QAAQ,EAAE;YACjC,QAAQ,KAAK,CAAC,QAAQ,CAAC,KAAK,EAAE;gBAC5B,KAAK,gBAAgB,CAAC,aAAa;oBACjC,OAAO,gBAAgB,CAAC,aAAa,CAAC;gBACxC,KAAK,gBAAgB,CAAC,QAAQ;oBAC5B,WAAW,GAAG,IAAI,CAAC;oBACnB,IAAI,aAAa,EAAE;wBACjB,OAAO,gBAAgB,CAAC,aAAa,CAAC;qBACvC;oBACD,MAAM;gBACR,KAAK,gBAAgB,CAAC,UAAU,CAAC;gBACjC;oBACE,4FAA4F;oBAC5F,aAAa,GAAG,IAAI,CAAC;oBACrB,IAAI,WAAW,EAAE;wBACf,OAAO,gBAAgB,CAAC,aAAa,CAAC;qBACvC;oBACD,MAAM;aACT;SACF;QACD,IAAI,CAAC,WAAW,EAAE;YAChB,OAAO,gBAAgB,CAAC,UAAU,CAAC;SACpC;aAAM,IAAI,CAAC,aAAa,EAAE;YACzB,OAAO,gBAAgB,CAAC,QAAQ,CAAC;SAClC;aAAM;YACL,OAAO,gBAAgB,CAAC,UAAU,CAAC;SACpC;IACH,CAAC;CACF","sourcesContent":["/*\n * Copyright (c) 2016-2023 VMware, Inc. All Rights Reserved.\n * This software is released under MIT license.\n * The full license information can be found in LICENSE in the root directory of this project.\n */\n\nimport { BehaviorSubject } from 'rxjs';\n\nimport { ClrSelectedState } from './selected-state.enum';\n\nexport abstract class TreeNodeModel<T> {\n  nodeId: string;\n  expanded: boolean;\n  model: T | null;\n  textContent: string;\n  loading$ = new BehaviorSubject(false);\n  selected = new BehaviorSubject(ClrSelectedState.UNSELECTED);\n\n  /*\n   * Being able to push this down to the RecursiveTreeNodeModel would require too much work on the angular components\n   * right now for them to know which kind of model they are using. So I'm lifting the public properties to this\n   * abstract parent class for now and we can revisit it later, when we're not facing such a close deadline.\n   */\n  private _loading = false;\n\n  /*\n   * Ideally, I would like to use a polymorphic this type here to ensure homogeneity of the tree, something like:\n   * abstract parent: this<T> | null;\n   * abstract children: this<T>[];\n   * But I'm hitting limitations on typescript not allowing that type in constructors or static methods.\n   * So I'm resorting to forcing override with more precise types by marking these abstract.\n   */\n  abstract parent: TreeNodeModel<T> | null;\n  abstract children: TreeNodeModel<T>[];\n\n  get loading() {\n    return this._loading;\n  }\n  set loading(isLoading: boolean) {\n    this._loading = isLoading;\n    this.loading$.next(isLoading);\n  }\n\n  destroy() {\n    // Just to be safe\n    this.selected.complete();\n  }\n\n  // Propagate by default when eager, don't propagate in the lazy-loaded tree.\n  setSelected(state: ClrSelectedState, propagateUp: boolean, propagateDown: boolean) {\n    if (state === this.selected.value) {\n      return;\n    }\n    this.selected.next(state);\n    if (propagateDown && state !== ClrSelectedState.INDETERMINATE && this.children) {\n      this.children.forEach(child => child.setSelected(state, false, true));\n    }\n    if (propagateUp && this.parent) {\n      this.parent._updateSelectionFromChildren();\n    }\n  }\n\n  toggleSelection(propagate: boolean) {\n    // Both unselected and indeterminate toggle to selected\n    const newState =\n      this.selected.value === ClrSelectedState.SELECTED ? ClrSelectedState.UNSELECTED : ClrSelectedState.SELECTED;\n    // NOTE: we always propagate selection up in this method because it is only called when the user takes an action.\n    // It should never be called from lifecycle hooks or app-provided inputs.\n    this.setSelected(newState, true, propagate);\n  }\n\n  /*\n   * Internal, but needs to be called by other nodes\n   */\n  _updateSelectionFromChildren() {\n    const newState = this.computeSelectionStateFromChildren();\n    if (newState === this.selected.value) {\n      return;\n    }\n    this.selected.next(newState);\n    if (this.parent) {\n      this.parent._updateSelectionFromChildren();\n    }\n  }\n\n  private computeSelectionStateFromChildren() {\n    let oneSelected = false;\n    let oneUnselected = false;\n    // Using a good old for loop to exit as soon as we can tell, for better performance on large trees.\n    for (const child of this.children) {\n      switch (child.selected.value) {\n        case ClrSelectedState.INDETERMINATE:\n          return ClrSelectedState.INDETERMINATE;\n        case ClrSelectedState.SELECTED:\n          oneSelected = true;\n          if (oneUnselected) {\n            return ClrSelectedState.INDETERMINATE;\n          }\n          break;\n        case ClrSelectedState.UNSELECTED:\n        default:\n          // Default is the same as unselected, in case an undefined somehow made it all the way here.\n          oneUnselected = true;\n          if (oneSelected) {\n            return ClrSelectedState.INDETERMINATE;\n          }\n          break;\n      }\n    }\n    if (!oneSelected) {\n      return ClrSelectedState.UNSELECTED;\n    } else if (!oneUnselected) {\n      return ClrSelectedState.SELECTED;\n    } else {\n      return ClrSelectedState.UNSELECTED;\n    }\n  }\n}\n"]}