carbon-components-angular
Version:
Next generation components
290 lines • 36.2 kB
JavaScript
import { Directive, EventEmitter, HostBinding, Input, Output } from "@angular/core";
import { arrow, autoUpdate, computePosition, flip, offset } from "@floating-ui/dom";
import * as i0 from "@angular/core";
export class PopoverContainer {
constructor(elementRef, ngZone, renderer, changeDetectorRef) {
this.elementRef = elementRef;
this.ngZone = ngZone;
this.renderer = renderer;
this.changeDetectorRef = changeDetectorRef;
this._align = "bottom";
this.alignmentClassPrefix = "cds--popover--";
/**
* Emits an event when the dialog is closed
*/
this.onClose = new EventEmitter();
/**
* Emits an event when the dialog is opened
*/
this.onOpen = new EventEmitter();
/**
* Emits an event when the state of `isOpen` changes. Allows `isOpen` to be double bound
*/
this.isOpenChange = new EventEmitter();
/**
* Show caret at the alignment position
*/
this.caret = true;
/**
* Enable drop shadow around the popover container
*/
this.dropShadow = true;
/**
* Enable high contrast for popover container
*/
this.highContrast = false;
/**
* **Experimental**: Use floating-ui to position the tooltip
* This is not toggleable - should be assigned once
*/
this.autoAlign = false;
this.containerClass = true;
this.isOpen = false;
}
/**
* Set alignment of popover
* As of v5, `oldPlacements` are now deprecated in favor of Placements
*
* When `autoAlign` is set to `true`, alignment may change for best placement
*/
set align(alignment) {
// If alignment is not passed, the default value will be `undefined`.
if (!alignment) {
return;
}
const previousAlignment = this._align;
switch (alignment) {
case "top-left":
this._align = "top-start";
break;
case "top-right":
this._align = "top-end";
break;
case "bottom-left":
this._align = "bottom-start";
break;
case "bottom-right":
this._align = "bottom-end";
break;
case "left-top":
this._align = "left-start";
break;
case "left-bottom":
this._align = "left-end";
break;
case "right-top":
this._align = "right-start";
break;
case "right-bottom":
this._align = "right-end";
break;
default:
this._align = alignment;
break;
}
this.updateAlignmentClass(this._align, previousAlignment);
}
/**
* Handles emitting open/close event
* @param open - Is the popover container open
* @param event - Event
*/
handleChange(open, event) {
// We only emit the event when parameter has an event to keep existing behavior
if ((this.isOpen !== open) && event) {
this.isOpenChange.emit(open);
}
if (open) {
if (event) {
this.onOpen.emit(event);
}
// when auto alignment is enabled, use auto update to set the placement for the element
if (this.autoAlign) {
if (this.caretRef) {
// Get caret offset/height property
// Getting computed styles once every open, otherwise expensive.
const computedStyle = getComputedStyle(this.caretRef);
const offset = computedStyle.getPropertyValue("--cds-popover-offset");
const height = computedStyle.getPropertyValue("--cds-popover-caret-height");
this.caretOffset = (offset?.includes("px") ? Number(offset.split("px", 1)[0]) : Number(offset.split("rem", 1)[0]) * 16) || 10;
this.caretHeight = (height?.includes("px") ? Number(height.split("px", 1)[0]) : Number(height.split("rem", 1)[0]) * 16) || 6;
}
if (this.elementRef.nativeElement && this.popoverContentRef) {
this.unmountFloatingElement = autoUpdate(this.elementRef.nativeElement, this.popoverContentRef, this.recomputePosition.bind(this));
}
}
}
else {
this.cleanUp();
if (event) {
this.onClose.emit(event);
}
}
this.isOpen = open;
this.changeDetectorRef.markForCheck();
}
roundByDPR(value) {
const dpr = window.devicePixelRatio || 1;
return Math.round(value * dpr) / dpr;
}
/**
* Compute position of tooltip when autoAlign is enabled
*/
recomputePosition() {
// Run outside of angular zone to avoid unnecessary change detection and rely on floating-ui
this.ngZone.runOutsideAngular(async () => {
const offsetMiddleware = this.alignmentAxisOffset !== undefined && this.alignmentAxisOffset !== null
? offset({
mainAxis: this.caretOffset,
alignmentAxis: this.alignmentAxisOffset
})
: offset(this.caretOffset);
const { x, y, placement, middlewareData } = await computePosition(this.elementRef.nativeElement, this.popoverContentRef, {
placement: this._align,
strategy: "fixed",
middleware: [
offsetMiddleware,
flip({ fallbackAxisSideDirection: "start" }),
arrow({ element: this.caretRef, padding: 16 })
]
});
const previousAlignment = this._align;
this._align = placement;
this.updateAlignmentClass(this._align, previousAlignment);
// Using CSSOM to manipulate CSS to avoid content security policy inline-src
// https://github.com/w3c/webappsec-csp/issues/212
Object.assign(this.popoverContentRef.style, {
position: "fixed",
top: "0",
left: "0",
// Using transform instead of top/left position to improve performance
transform: `translate(${this.roundByDPR(x)}px,${this.roundByDPR(y)}px)`
});
if (middlewareData.arrow) {
const { x: arrowX, y: arrowY } = middlewareData.arrow;
const staticSide = {
top: "bottom",
right: "left",
bottom: "top",
left: "right"
}[placement.split("-")[0]];
this.caretRef.style.left = arrowX != null ? `${arrowX}px` : "";
this.caretRef.style.top = arrowY != null ? `${arrowY}px` : "";
this.caretRef.style.right = "";
this.caretRef.style.bottom = "";
if (staticSide) {
this.caretRef.style[staticSide] = `${-this.caretHeight}px`;
}
}
});
}
/**
* Close the popover and reopen it with updated values without emitting an event
* @param changes
*/
ngOnChanges(changes) {
// Close and reopen the popover, handle alignment/programmatic open/close
const originalState = this.isOpen;
this.handleChange(false);
// Ignore first change since content is not initialized
if (changes.autoAlign && !changes.autoAlign.firstChange) {
// Reset the inline styles
this.popoverContentRef = this.elementRef.nativeElement.querySelector(".cds--popover-content");
this.popoverContentRef.setAttribute("style", "");
this.caretRef = this.elementRef.nativeElement.querySelector("span.cds--popover-caret");
}
this.handleChange(originalState);
}
/**
* Handle initialization of element
*/
ngAfterViewInit() {
this.initializeReferences();
}
initializeReferences() {
this.updateAlignmentClass(this._align);
// Initialize html references since they will not change and are required for popover components
this.popoverContentRef = this.elementRef.nativeElement.querySelector(".cds--popover-content");
this.caretRef = this.elementRef.nativeElement.querySelector("span.cds--popover-caret");
// Handle initial isOpen
this.handleChange(this.isOpen);
}
/**
* Clean up
*/
ngOnDestroy() {
this.cleanUp();
}
/**
* Clean up `autoUpdate` if auto alignment is enabled
*/
cleanUp() {
if (this.unmountFloatingElement) {
this.unmountFloatingElement();
}
this.unmountFloatingElement = undefined;
}
/**
* Replace existing previous alignment class with new
* @param previousAlignment
*/
updateAlignmentClass(newAlignment, previousAlignment) {
if (this.elementRef.nativeElement && previousAlignment !== newAlignment) {
const regexp = new RegExp("right|top|left|bottom");
// Since we are constantly switching, it's safer to delete all matching class names
this.elementRef.nativeElement.classList.forEach(className => {
if (regexp.test(className)) {
this.renderer.removeClass(this.elementRef.nativeElement, `${className}`);
}
});
this.renderer.addClass(this.elementRef.nativeElement, `${this.alignmentClassPrefix}${newAlignment}`);
}
}
}
PopoverContainer.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "14.3.0", ngImport: i0, type: PopoverContainer, deps: [{ token: i0.ElementRef }, { token: i0.NgZone }, { token: i0.Renderer2 }, { token: i0.ChangeDetectorRef }], target: i0.ɵɵFactoryTarget.Directive });
PopoverContainer.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "14.3.0", type: PopoverContainer, selector: "[cdsPopover], [ibmPopover]", inputs: { align: "align", caret: "caret", dropShadow: "dropShadow", highContrast: "highContrast", autoAlign: "autoAlign", isOpen: "isOpen", alignmentAxisOffset: "alignmentAxisOffset" }, outputs: { onClose: "onClose", onOpen: "onOpen", isOpenChange: "isOpenChange" }, host: { properties: { "class.cds--popover--caret": "this.caret", "class.cds--popover--drop-shadow": "this.dropShadow", "class.cds--popover--high-contrast": "this.highContrast", "class.cds--popover--auto-align": "this.autoAlign", "class.cds--popover-container": "this.containerClass", "class.cds--popover--open": "this.isOpen" } }, usesOnChanges: true, ngImport: i0 });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "14.3.0", ngImport: i0, type: PopoverContainer, decorators: [{
type: Directive,
args: [{
selector: "[cdsPopover], [ibmPopover]"
}]
}], ctorParameters: function () { return [{ type: i0.ElementRef }, { type: i0.NgZone }, { type: i0.Renderer2 }, { type: i0.ChangeDetectorRef }]; }, propDecorators: { align: [{
type: Input
}], onClose: [{
type: Output
}], onOpen: [{
type: Output
}], isOpenChange: [{
type: Output
}], caret: [{
type: HostBinding,
args: ["class.cds--popover--caret"]
}, {
type: Input
}], dropShadow: [{
type: HostBinding,
args: ["class.cds--popover--drop-shadow"]
}, {
type: Input
}], highContrast: [{
type: HostBinding,
args: ["class.cds--popover--high-contrast"]
}, {
type: Input
}], autoAlign: [{
type: HostBinding,
args: ["class.cds--popover--auto-align"]
}, {
type: Input
}], containerClass: [{
type: HostBinding,
args: ["class.cds--popover-container"]
}], isOpen: [{
type: Input
}, {
type: HostBinding,
args: ["class.cds--popover--open"]
}], alignmentAxisOffset: [{
type: Input
}] } });
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{\n\tAfterViewInit,\n\tChangeDetectorRef,\n\tDirective,\n\tElementRef,\n\tEventEmitter,\n\tHostBinding,\n\tInput,\n\tNgZone,\n\tOnChanges,\n\tOnDestroy,\n\tOutput,\n\tRenderer2,\n\tSimpleChanges\n} from \"@angular/core\";\nimport {\n\tarrow,\n\tautoUpdate,\n\tcomputePosition,\n\tflip,\n\toffset,\n\tPlacement\n} from \"@floating-ui/dom\";\n\n// Deprecated popover alignments\ntype oldPlacement = \"top-left\"\n\t| \"top-right\"\n\t| \"bottom-left\"\n\t| \"bottom-right\"\n\t| \"left-bottom\"\n\t| \"left-top\"\n\t| \"right-bottom\"\n\t| \"right-top\";\n\n@Directive({\n\tselector: \"[cdsPopover], [ibmPopover]\"\n})\nexport class PopoverContainer implements AfterViewInit, OnChanges, OnDestroy {\n\t/**\n\t * Set alignment of popover\n\t * As of v5, `oldPlacements` are now deprecated in favor of Placements\n\t *\n\t * When `autoAlign` is set to `true`, alignment may change for best placement\n\t */\n\t@Input() set align(alignment: oldPlacement | Placement) {\n\t\t// If alignment is not passed, the default value will be `undefined`.\n\t\tif (!alignment) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst previousAlignment = this._align;\n\t\tswitch (alignment) {\n\t\t\tcase \"top-left\":\n\t\t\t\tthis._align = \"top-start\";\n\t\t\t\tbreak;\n\t\t\tcase \"top-right\":\n\t\t\t\tthis._align = \"top-end\";\n\t\t\t\tbreak;\n\t\t\tcase \"bottom-left\":\n\t\t\t\tthis._align = \"bottom-start\";\n\t\t\t\tbreak;\n\t\t\tcase \"bottom-right\":\n\t\t\t\tthis._align = \"bottom-end\";\n\t\t\t\tbreak;\n\t\t\tcase \"left-top\":\n\t\t\t\tthis._align = \"left-start\";\n\t\t\t\tbreak;\n\t\t\tcase \"left-bottom\":\n\t\t\t\tthis._align = \"left-end\";\n\t\t\t\tbreak;\n\t\t\tcase \"right-top\":\n\t\t\t\tthis._align = \"right-start\";\n\t\t\t\tbreak;\n\t\t\tcase \"right-bottom\":\n\t\t\t\tthis._align = \"right-end\";\n\t\t\t\tbreak;\n\t\t\tdefault:\n\t\t\t\tthis._align = alignment as Placement;\n\t\t\t\tbreak;\n\t\t}\n\t\tthis.updateAlignmentClass(this._align, previousAlignment);\n\t}\n\n\t_align: Placement = \"bottom\";\n\treadonly alignmentClassPrefix = \"cds--popover--\";\n\n\t/**\n\t * Emits an event when the dialog is closed\n\t */\n\t@Output() onClose: EventEmitter<Event> = new EventEmitter();\n\t/**\n\t * Emits an event when the dialog is opened\n\t */\n\t@Output() onOpen: EventEmitter<Event> = new EventEmitter();\n\t/**\n\t * Emits an event when the state of `isOpen` changes. Allows `isOpen` to be double bound\n\t */\n\t@Output() isOpenChange = new EventEmitter<boolean>();\n\t/**\n\t * Show caret at the alignment position\n\t */\n\t@HostBinding(\"class.cds--popover--caret\") @Input() caret = true;\n\t/**\n\t * Enable drop shadow around the popover container\n\t */\n\t@HostBinding(\"class.cds--popover--drop-shadow\") @Input() dropShadow = true;\n\t/**\n\t * Enable high contrast for popover container\n\t */\n\t@HostBinding(\"class.cds--popover--high-contrast\") @Input() highContrast = false;\n\t/**\n\t * **Experimental**: Use floating-ui to position the tooltip\n\t * This is not toggleable - should be assigned once\n\t */\n\t@HostBinding(\"class.cds--popover--auto-align\") @Input() autoAlign = false;\n\t@HostBinding(\"class.cds--popover-container\") containerClass = true;\n\t@Input() @HostBinding(\"class.cds--popover--open\") isOpen = false;\n\t/**\n\t * **Experimental:** Provide an offset value for alignment axis.\n\t * Only takes effect when `autoalign` is enabled.\n\t */\n\t@Input() alignmentAxisOffset?: number;\n\n\tprotected popoverContentRef: HTMLElement;\n\tprotected caretRef: HTMLElement;\n\tprotected caretOffset: number;\n\tprotected caretHeight: number;\n\tprotected unmountFloatingElement: Function;\n\n\tconstructor(\n\t\tprotected elementRef: ElementRef,\n\t\tprotected ngZone: NgZone,\n\t\tprotected renderer: Renderer2,\n\t\tprotected changeDetectorRef: ChangeDetectorRef\n\t) {}\n\n\t/**\n\t * Handles emitting open/close event\n\t * @param open - Is the popover container open\n\t * @param event - Event\n\t */\n\thandleChange(open: boolean, event?: Event) {\n\t\t// We only emit the event when parameter has an event to keep existing behavior\n\t\tif ((this.isOpen !== open) && event) {\n\t\t\tthis.isOpenChange.emit(open);\n\t\t}\n\n\t\tif (open) {\n\t\t\tif (event) {\n\t\t\t\tthis.onOpen.emit(event);\n\t\t\t}\n\n\t\t\t// when auto alignment is enabled, use auto update to set the placement for the element\n\t\t\tif (this.autoAlign) {\n\t\t\t\tif (this.caretRef) {\n\t\t\t\t\t// Get caret offset/height property\n\t\t\t\t\t// Getting computed styles once every open, otherwise expensive.\n\t\t\t\t\tconst computedStyle = getComputedStyle(this.caretRef);\n\t\t\t\t\tconst offset = computedStyle.getPropertyValue(\"--cds-popover-offset\");\n\t\t\t\t\tconst height = computedStyle.getPropertyValue(\"--cds-popover-caret-height\");\n\t\t\t\t\tthis.caretOffset = (offset?.includes(\"px\") ? Number(offset.split(\"px\", 1)[0]) : Number(offset.split(\"rem\", 1)[0]) * 16) || 10;\n\t\t\t\t\tthis.caretHeight = (height?.includes(\"px\") ? Number(height.split(\"px\", 1)[0]) : Number(height.split(\"rem\", 1)[0]) * 16) || 6;\n\t\t\t\t}\n\t\t\t\tif (this.elementRef.nativeElement && this.popoverContentRef) {\n\t\t\t\t\tthis.unmountFloatingElement = autoUpdate(\n\t\t\t\t\t\tthis.elementRef.nativeElement,\n\t\t\t\t\t\tthis.popoverContentRef,\n\t\t\t\t\t\tthis.recomputePosition.bind(this)\n\t\t\t\t\t);\n\t\t\t\t}\n\t\t\t}\n\t\t} else {\n\t\t\tthis.cleanUp();\n\t\t\tif (event) {\n\t\t\t\tthis.onClose.emit(event);\n\t\t\t}\n\t\t}\n\t\tthis.isOpen = open;\n\t\tthis.changeDetectorRef.markForCheck();\n\t}\n\n\troundByDPR(value) {\n\t\tconst dpr = window.devicePixelRatio || 1;\n\t\treturn Math.round(value * dpr) / dpr;\n\t}\n\n\t/**\n\t * Compute position of tooltip when autoAlign is enabled\n\t */\n\trecomputePosition() {\n\t\t// Run outside of angular zone to avoid unnecessary change detection and rely on floating-ui\n\t\tthis.ngZone.runOutsideAngular(async () => {\n\t\t\tconst offsetMiddleware =\n\t\t\t\tthis.alignmentAxisOffset !== undefined && this.alignmentAxisOffset !== null\n\t\t\t\t\t? offset({\n\t\t\t\t\t\tmainAxis: this.caretOffset,\n\t\t\t\t\t\talignmentAxis: this.alignmentAxisOffset\n\t\t\t\t\t})\n\t\t\t\t\t: offset(this.caretOffset);\n\n\t\t\tconst { x, y, placement, middlewareData } = await computePosition(\n\t\t\t\tthis.elementRef.nativeElement,\n\t\t\t\tthis.popoverContentRef,\n\t\t\t\t{\n\t\t\t\t\tplacement: this._align,\n\t\t\t\t\tstrategy: \"fixed\",\n\t\t\t\t\tmiddleware: [\n\t\t\t\t\t\toffsetMiddleware,\n\t\t\t\t\t\tflip({ fallbackAxisSideDirection: \"start\" }),\n\t\t\t\t\t\tarrow({ element: this.caretRef, padding: 16 })\n\t\t\t\t\t]\n\t\t\t\t});\n\n\t\t\tconst previousAlignment = this._align;\n\t\t\tthis._align = placement;\n\t\t\tthis.updateAlignmentClass(this._align, previousAlignment);\n\n\t\t\t// Using CSSOM to manipulate CSS to avoid content security policy inline-src\n\t\t\t// https://github.com/w3c/webappsec-csp/issues/212\n\t\t\tObject.assign(this.popoverContentRef.style, {\n\t\t\t\tposition: \"fixed\",\n\t\t\t\ttop: \"0\",\n\t\t\t\tleft: \"0\",\n\t\t\t\t// Using transform instead of top/left position to improve performance\n\t\t\t\ttransform: `translate(${this.roundByDPR(x)}px,${this.roundByDPR(y)}px)`\n\t\t\t});\n\n\t\t\tif (middlewareData.arrow) {\n\t\t\t\tconst { x: arrowX, y: arrowY } = middlewareData.arrow;\n\n\t\t\t\tconst staticSide = {\n\t\t\t\t\ttop: \"bottom\",\n\t\t\t\t\tright: \"left\",\n\t\t\t\t\tbottom: \"top\",\n\t\t\t\t\tleft: \"right\"\n\t\t\t\t}[placement.split(\"-\")[0]];\n\n\t\t\t\tthis.caretRef.style.left = arrowX != null ? `${arrowX}px` : \"\";\n\t\t\t\tthis.caretRef.style.top = arrowY != null ? `${arrowY}px` : \"\";\n\t\t\t\tthis.caretRef.style.right = \"\";\n\t\t\t\tthis.caretRef.style.bottom = \"\";\n\n\t\t\t\tif (staticSide) {\n\t\t\t\t\tthis.caretRef.style[staticSide] = `${-this.caretHeight}px`;\n\t\t\t\t}\n\t\t\t}\n\t\t});\n\t}\n\n\t/**\n\t * Close the popover and reopen it with updated values without emitting an event\n\t * @param changes\n\t */\n\tngOnChanges(changes: SimpleChanges): void {\n\t\t// Close and reopen the popover, handle alignment/programmatic open/close\n\t\tconst originalState = this.isOpen;\n\t\tthis.handleChange(false);\n\n\t\t// Ignore first change since content is not initialized\n\t\tif (changes.autoAlign && !changes.autoAlign.firstChange) {\n\t\t\t// Reset the inline styles\n\t\t\tthis.popoverContentRef = this.elementRef.nativeElement.querySelector(\".cds--popover-content\");\n\t\t\tthis.popoverContentRef.setAttribute(\"style\", \"\");\n\t\t\tthis.caretRef = this.elementRef.nativeElement.querySelector(\"span.cds--popover-caret\");\n\t\t}\n\n\t\tthis.handleChange(originalState);\n\t}\n\n\t/**\n\t * Handle initialization of element\n\t */\n\tngAfterViewInit(): void {\n\t\tthis.initializeReferences();\n\t}\n\n\tinitializeReferences(): void {\n\t\tthis.updateAlignmentClass(this._align);\n\n\t\t// Initialize html references since they will not change and are required for popover components\n\t\tthis.popoverContentRef = this.elementRef.nativeElement.querySelector(\".cds--popover-content\");\n\t\tthis.caretRef = this.elementRef.nativeElement.querySelector(\"span.cds--popover-caret\");\n\n\t\t// Handle initial isOpen\n\t\tthis.handleChange(this.isOpen);\n\t}\n\n\t/**\n\t * Clean up\n\t */\n\tngOnDestroy(): void {\n\t\tthis.cleanUp();\n\t}\n\n\t/**\n\t * Clean up `autoUpdate` if auto alignment is enabled\n\t */\n\tcleanUp() {\n\t\tif (this.unmountFloatingElement) {\n\t\t\tthis.unmountFloatingElement();\n\t\t}\n\t\tthis.unmountFloatingElement = undefined;\n\t}\n\n\t/**\n\t * Replace existing previous alignment class with new\n\t * @param previousAlignment\n\t */\n\tupdateAlignmentClass(newAlignment: string, previousAlignment?: string) {\n\t\tif (this.elementRef.nativeElement && previousAlignment !== newAlignment) {\n\t\t\tconst regexp = new RegExp(\"right|top|left|bottom\");\n\t\t\t// Since we are constantly switching, it's safer to delete all matching class names\n\t\t\tthis.elementRef.nativeElement.classList.forEach(className => {\n\t\t\t\tif (regexp.test(className)) {\n\t\t\t\t\tthis.renderer.removeClass(this.elementRef.nativeElement, `${className}`);\n\t\t\t\t}\n\t\t\t});\n\t\t\tthis.renderer.addClass(this.elementRef.nativeElement, `${this.alignmentClassPrefix}${newAlignment}`);\n\t\t}\n\t}\n}\n"]}