1 | import { style, animate, AnimationBuilder } from '@angular/animations';
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2 | import { EventEmitter, Directive, ElementRef, Renderer2, Output, HostBinding, Input, NgModule } from '@angular/core';
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3 |
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4 | const COLLAPSE_ANIMATION_TIMING = '400ms cubic-bezier(0.4,0.0,0.2,1)';
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5 | const expandAnimation = [
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6 | style({ height: 0, visibility: 'hidden' }),
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7 | animate(COLLAPSE_ANIMATION_TIMING, style({ height: '*', visibility: 'visible' }))
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8 | ];
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9 | const collapseAnimation = [
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10 | style({ height: '*', visibility: 'visible' }),
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11 | animate(COLLAPSE_ANIMATION_TIMING, style({ height: 0, visibility: 'hidden' }))
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12 | ];
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13 |
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14 | class CollapseDirective {
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15 | constructor(_el, _renderer, _builder) {
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16 | this._el = _el;
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17 | this._renderer = _renderer;
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18 |
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19 | this.collapsed = new EventEmitter();
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20 |
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21 | this.collapses = new EventEmitter();
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22 |
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23 | this.expanded = new EventEmitter();
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24 |
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25 | this.expands = new EventEmitter();
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26 |
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27 | this.isExpanded = true;
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28 | this.collapseNewValue = true;
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29 |
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30 | this.isCollapsed = false;
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31 |
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32 | this.isCollapse = true;
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33 |
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34 | this.isCollapsing = false;
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35 |
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36 | this.isAnimated = false;
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37 | this._display = 'block';
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38 | this._stylesLoaded = false;
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39 | this._COLLAPSE_ACTION_NAME = 'collapse';
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40 | this._EXPAND_ACTION_NAME = 'expand';
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41 | this._factoryCollapseAnimation = _builder.build(collapseAnimation);
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42 | this._factoryExpandAnimation = _builder.build(expandAnimation);
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43 | }
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44 | set display(value) {
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45 | if (!this.isAnimated) {
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46 | this._renderer.setStyle(this._el.nativeElement, 'display', value);
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47 | return;
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48 | }
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49 | this._display = value;
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50 | if (value === 'none') {
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51 | this.hide();
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52 | return;
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53 | }
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54 | this.show();
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55 | }
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56 |
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57 | set collapse(value) {
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58 | this.collapseNewValue = value;
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59 | if (!this._player || this._isAnimationDone) {
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60 | this.isExpanded = value;
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61 | this.toggle();
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62 | }
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63 | }
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64 | get collapse() {
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65 | return this.isExpanded;
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66 | }
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67 | ngAfterViewChecked() {
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68 | this._stylesLoaded = true;
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69 | if (!this._player || !this._isAnimationDone) {
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70 | return;
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71 | }
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72 | this._player.reset();
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73 | this._renderer.setStyle(this._el.nativeElement, 'height', '*');
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74 | }
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75 |
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76 | toggle() {
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77 | if (this.isExpanded) {
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78 | this.hide();
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79 | }
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80 | else {
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81 | this.show();
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82 | }
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83 | }
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84 |
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85 | hide() {
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86 | this.isCollapsing = true;
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87 | this.isExpanded = false;
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88 | this.isCollapsed = true;
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89 | this.isCollapsing = false;
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90 | this.collapses.emit(this);
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91 | this._isAnimationDone = false;
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92 | this.animationRun(this.isAnimated, this._COLLAPSE_ACTION_NAME)(() => {
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93 | this._isAnimationDone = true;
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94 | if (this.collapseNewValue !== this.isCollapsed && this.isAnimated) {
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95 | this.show();
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96 | return;
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97 | }
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98 | this.collapsed.emit(this);
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99 | this._renderer.setStyle(this._el.nativeElement, 'display', 'none');
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100 | });
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101 | }
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102 |
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103 | show() {
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104 | this._renderer.setStyle(this._el.nativeElement, 'display', this._display);
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105 | this.isCollapsing = true;
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106 | this.isExpanded = true;
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107 | this.isCollapsed = false;
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108 | this.isCollapsing = false;
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109 | this.expands.emit(this);
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110 | this._isAnimationDone = false;
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111 | this.animationRun(this.isAnimated, this._EXPAND_ACTION_NAME)(() => {
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112 | this._isAnimationDone = true;
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113 | if (this.collapseNewValue !== this.isCollapsed && this.isAnimated) {
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114 | this.hide();
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115 | return;
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116 | }
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117 | this.expanded.emit(this);
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118 | this._renderer.removeStyle(this._el.nativeElement, 'overflow');
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119 | });
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120 | }
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121 | animationRun(isAnimated, action) {
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122 | if (!isAnimated || !this._stylesLoaded) {
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123 | return (callback) => callback();
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124 | }
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125 | this._renderer.setStyle(this._el.nativeElement, 'overflow', 'hidden');
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126 | this._renderer.addClass(this._el.nativeElement, 'collapse');
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127 | const factoryAnimation = (action === this._EXPAND_ACTION_NAME)
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128 | ? this._factoryExpandAnimation
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129 | : this._factoryCollapseAnimation;
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130 | if (this._player) {
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131 | this._player.destroy();
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132 | }
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133 | this._player = factoryAnimation.create(this._el.nativeElement);
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134 | this._player.play();
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135 | return (callback) => { var _a; return (_a = this._player) === null || _a === void 0 ? void 0 : _a.onDone(callback); };
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136 | }
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137 | }
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138 | CollapseDirective.decorators = [
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139 | { type: Directive, args: [{
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140 | selector: '[collapse]',
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141 | exportAs: 'bs-collapse',
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142 |
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143 | host: {
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144 | '[class.collapse]': 'true'
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145 | }
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146 | },] }
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147 | ];
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148 | CollapseDirective.ctorParameters = () => [
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149 | { type: ElementRef },
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150 | { type: Renderer2 },
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151 | { type: AnimationBuilder }
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152 | ];
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153 | CollapseDirective.propDecorators = {
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154 | collapsed: [{ type: Output }],
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155 | collapses: [{ type: Output }],
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156 | expanded: [{ type: Output }],
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157 | expands: [{ type: Output }],
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158 | isExpanded: [{ type: HostBinding, args: ['class.in',] }, { type: HostBinding, args: ['class.show',] }, { type: HostBinding, args: ['attr.aria-expanded',] }],
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159 | isCollapsed: [{ type: HostBinding, args: ['attr.aria-hidden',] }],
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160 | isCollapse: [{ type: HostBinding, args: ['class.collapse',] }],
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161 | isCollapsing: [{ type: HostBinding, args: ['class.collapsing',] }],
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162 | display: [{ type: Input }],
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163 | isAnimated: [{ type: Input }],
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164 | collapse: [{ type: Input }]
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165 | };
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166 |
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167 | class CollapseModule {
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168 | static forRoot() {
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169 | return { ngModule: CollapseModule, providers: [] };
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170 | }
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171 | }
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172 | CollapseModule.decorators = [
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173 | { type: NgModule, args: [{
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174 | declarations: [CollapseDirective],
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175 | exports: [CollapseDirective]
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176 | },] }
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177 | ];
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178 |
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179 |
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180 |
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181 |
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182 |
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183 | export { CollapseDirective, CollapseModule };
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184 |
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