@angular/common
Version:
Angular - commonly needed directives and services
199 lines • 22.3 kB
JavaScript
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import { ɵɵdefineInjectable, ɵɵinject } from '@angular/core';
import { DOCUMENT } from './dom_tokens';
/**
* Defines a scroll position manager. Implemented by `BrowserViewportScroller`.
*
* @publicApi
*/
export class ViewportScroller {
}
// De-sugared tree-shakable injection
// See #23917
/** @nocollapse */
ViewportScroller.ɵprov = ɵɵdefineInjectable({
token: ViewportScroller,
providedIn: 'root',
factory: () => new BrowserViewportScroller(ɵɵinject(DOCUMENT), window)
});
/**
* Manages the scroll position for a browser window.
*/
export class BrowserViewportScroller {
constructor(document, window) {
this.document = document;
this.window = window;
this.offset = () => [0, 0];
}
/**
* Configures the top offset used when scrolling to an anchor.
* @param offset A position in screen coordinates (a tuple with x and y values)
* or a function that returns the top offset position.
*
*/
setOffset(offset) {
if (Array.isArray(offset)) {
this.offset = () => offset;
}
else {
this.offset = offset;
}
}
/**
* Retrieves the current scroll position.
* @returns The position in screen coordinates.
*/
getScrollPosition() {
if (this.supportsScrolling()) {
return [this.window.pageXOffset, this.window.pageYOffset];
}
else {
return [0, 0];
}
}
/**
* Sets the scroll position.
* @param position The new position in screen coordinates.
*/
scrollToPosition(position) {
if (this.supportsScrolling()) {
this.window.scrollTo(position[0], position[1]);
}
}
/**
* Scrolls to an element and attempts to focus the element.
*
* Note that the function name here is misleading in that the target string may be an ID for a
* non-anchor element.
*
* @param target The ID of an element or name of the anchor.
*
* @see https://html.spec.whatwg.org/#the-indicated-part-of-the-document
* @see https://html.spec.whatwg.org/#scroll-to-fragid
*/
scrollToAnchor(target) {
var _a;
if (!this.supportsScrolling()) {
return;
}
// TODO(atscott): The correct behavior for `getElementsByName` would be to also verify that the
// element is an anchor. However, this could be considered a breaking change and should be
// done in a major version.
const elSelected = (_a = this.document.getElementById(target)) !== null && _a !== void 0 ? _a : this.document.getElementsByName(target)[0];
if (elSelected === undefined) {
return;
}
this.scrollToElement(elSelected);
// After scrolling to the element, the spec dictates that we follow the focus steps for the
// target. Rather than following the robust steps, simply attempt focus.
this.attemptFocus(elSelected);
}
/**
* Disables automatic scroll restoration provided by the browser.
*/
setHistoryScrollRestoration(scrollRestoration) {
if (this.supportScrollRestoration()) {
const history = this.window.history;
if (history && history.scrollRestoration) {
history.scrollRestoration = scrollRestoration;
}
}
}
/**
* Scrolls to an element using the native offset and the specified offset set on this scroller.
*
* The offset can be used when we know that there is a floating header and scrolling naively to an
* element (ex: `scrollIntoView`) leaves the element hidden behind the floating header.
*/
scrollToElement(el) {
const rect = el.getBoundingClientRect();
const left = rect.left + this.window.pageXOffset;
const top = rect.top + this.window.pageYOffset;
const offset = this.offset();
this.window.scrollTo(left - offset[0], top - offset[1]);
}
/**
* Calls `focus` on the `focusTarget` and returns `true` if the element was focused successfully.
*
* If `false`, further steps may be necessary to determine a valid substitute to be focused
* instead.
*
* @see https://html.spec.whatwg.org/#get-the-focusable-area
* @see https://developer.mozilla.org/en-US/docs/Web/API/HTMLOrForeignElement/focus
* @see https://html.spec.whatwg.org/#focusable-area
*/
attemptFocus(focusTarget) {
focusTarget.focus();
return this.document.activeElement === focusTarget;
}
/**
* We only support scroll restoration when we can get a hold of window.
* This means that we do not support this behavior when running in a web worker.
*
* Lifting this restriction right now would require more changes in the dom adapter.
* Since webworkers aren't widely used, we will lift it once RouterScroller is
* battle-tested.
*/
supportScrollRestoration() {
try {
if (!this.supportsScrolling()) {
return false;
}
// The `scrollRestoration` property could be on the `history` instance or its prototype.
const scrollRestorationDescriptor = getScrollRestorationProperty(this.window.history) ||
getScrollRestorationProperty(Object.getPrototypeOf(this.window.history));
// We can write to the `scrollRestoration` property if it is a writable data field or it has a
// setter function.
return !!scrollRestorationDescriptor &&
!!(scrollRestorationDescriptor.writable || scrollRestorationDescriptor.set);
}
catch (_a) {
return false;
}
}
supportsScrolling() {
try {
return !!this.window && !!this.window.scrollTo && 'pageXOffset' in this.window;
}
catch (_a) {
return false;
}
}
}
function getScrollRestorationProperty(obj) {
return Object.getOwnPropertyDescriptor(obj, 'scrollRestoration');
}
/**
* Provides an empty implementation of the viewport scroller.
*/
export class NullViewportScroller {
/**
* Empty implementation
*/
setOffset(offset) { }
/**
* Empty implementation
*/
getScrollPosition() {
return [0, 0];
}
/**
* Empty implementation
*/
scrollToPosition(position) { }
/**
* Empty implementation
*/
scrollToAnchor(anchor) { }
/**
* Empty implementation
*/
setHistoryScrollRestoration(scrollRestoration) { }
}
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"viewport_scroller.js","sourceRoot":"","sources":["../../../../../../packages/common/src/viewport_scroller.ts"],"names":[],"mappings":"AAAA;;;;;;GAMG;AAEH,OAAO,EAAC,kBAAkB,EAAE,QAAQ,EAAC,MAAM,eAAe,CAAC;AAE3D,OAAO,EAAC,QAAQ,EAAC,MAAM,cAAc,CAAC;AAItC;;;;GAIG;AACH,MAAM,OAAgB,gBAAgB;;AACpC,qCAAqC;AACrC,aAAa;AACb,kBAAkB;AACX,sBAAK,GAAG,kBAAkB,CAAC;IAChC,KAAK,EAAE,gBAAgB;IACvB,UAAU,EAAE,MAAM;IAClB,OAAO,EAAE,GAAG,EAAE,CAAC,IAAI,uBAAuB,CAAC,QAAQ,CAAC,QAAQ,CAAC,EAAE,MAAM,CAAC;CACvE,CAAC,CAAC;AAoCL;;GAEG;AACH,MAAM,OAAO,uBAAuB;IAGlC,YAAoB,QAAkB,EAAU,MAAc;QAA1C,aAAQ,GAAR,QAAQ,CAAU;QAAU,WAAM,GAAN,MAAM,CAAQ;QAFtD,WAAM,GAA2B,GAAG,EAAE,CAAC,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC;IAEW,CAAC;IAElE;;;;;OAKG;IACH,SAAS,CAAC,MAAiD;QACzD,IAAI,KAAK,CAAC,OAAO,CAAC,MAAM,CAAC,EAAE;YACzB,IAAI,CAAC,MAAM,GAAG,GAAG,EAAE,CAAC,MAAM,CAAC;SAC5B;aAAM;YACL,IAAI,CAAC,MAAM,GAAG,MAAM,CAAC;SACtB;IACH,CAAC;IAED;;;OAGG;IACH,iBAAiB;QACf,IAAI,IAAI,CAAC,iBAAiB,EAAE,EAAE;YAC5B,OAAO,CAAC,IAAI,CAAC,MAAM,CAAC,WAAW,EAAE,IAAI,CAAC,MAAM,CAAC,WAAW,CAAC,CAAC;SAC3D;aAAM;YACL,OAAO,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC;SACf;IACH,CAAC;IAED;;;OAGG;IACH,gBAAgB,CAAC,QAA0B;QACzC,IAAI,IAAI,CAAC,iBAAiB,EAAE,EAAE;YAC5B,IAAI,CAAC,MAAM,CAAC,QAAQ,CAAC,QAAQ,CAAC,CAAC,CAAC,EAAE,QAAQ,CAAC,CAAC,CAAC,CAAC,CAAC;SAChD;IACH,CAAC;IAED;;;;;;;;;;OAUG;IACH,cAAc,CAAC,MAAc;;QAC3B,IAAI,CAAC,IAAI,CAAC,iBAAiB,EAAE,EAAE;YAC7B,OAAO;SACR;QACD,+FAA+F;QAC/F,0FAA0F;QAC1F,2BAA2B;QAC3B,MAAM,UAAU,SACZ,IAAI,CAAC,QAAQ,CAAC,cAAc,CAAC,MAAM,CAAC,mCAAI,IAAI,CAAC,QAAQ,CAAC,iBAAiB,CAAC,MAAM,CAAC,CAAC,CAAC,CAAC,CAAC;QACvF,IAAI,UAAU,KAAK,SAAS,EAAE;YAC5B,OAAO;SACR;QAED,IAAI,CAAC,eAAe,CAAC,UAAU,CAAC,CAAC;QACjC,2FAA2F;QAC3F,wEAAwE;QACxE,IAAI,CAAC,YAAY,CAAC,UAAU,CAAC,CAAC;IAChC,CAAC;IAED;;OAEG;IACH,2BAA2B,CAAC,iBAAkC;QAC5D,IAAI,IAAI,CAAC,wBAAwB,EAAE,EAAE;YACnC,MAAM,OAAO,GAAG,IAAI,CAAC,MAAM,CAAC,OAAO,CAAC;YACpC,IAAI,OAAO,IAAI,OAAO,CAAC,iBAAiB,EAAE;gBACxC,OAAO,CAAC,iBAAiB,GAAG,iBAAiB,CAAC;aAC/C;SACF;IACH,CAAC;IAED;;;;;OAKG;IACK,eAAe,CAAC,EAAe;QACrC,MAAM,IAAI,GAAG,EAAE,CAAC,qBAAqB,EAAE,CAAC;QACxC,MAAM,IAAI,GAAG,IAAI,CAAC,IAAI,GAAG,IAAI,CAAC,MAAM,CAAC,WAAW,CAAC;QACjD,MAAM,GAAG,GAAG,IAAI,CAAC,GAAG,GAAG,IAAI,CAAC,MAAM,CAAC,WAAW,CAAC;QAC/C,MAAM,MAAM,GAAG,IAAI,CAAC,MAAM,EAAE,CAAC;QAC7B,IAAI,CAAC,MAAM,CAAC,QAAQ,CAAC,IAAI,GAAG,MAAM,CAAC,CAAC,CAAC,EAAE,GAAG,GAAG,MAAM,CAAC,CAAC,CAAC,CAAC,CAAC;IAC1D,CAAC;IAED;;;;;;;;;OASG;IACK,YAAY,CAAC,WAAwB;QAC3C,WAAW,CAAC,KAAK,EAAE,CAAC;QACpB,OAAO,IAAI,CAAC,QAAQ,CAAC,aAAa,KAAK,WAAW,CAAC;IACrD,CAAC;IAED;;;;;;;OAOG;IACK,wBAAwB;QAC9B,IAAI;YACF,IAAI,CAAC,IAAI,CAAC,iBAAiB,EAAE,EAAE;gBAC7B,OAAO,KAAK,CAAC;aACd;YACD,wFAAwF;YACxF,MAAM,2BAA2B,GAAG,4BAA4B,CAAC,IAAI,CAAC,MAAM,CAAC,OAAO,CAAC;gBACjF,4BAA4B,CAAC,MAAM,CAAC,cAAc,CAAC,IAAI,CAAC,MAAM,CAAC,OAAO,CAAC,CAAC,CAAC;YAC7E,8FAA8F;YAC9F,mBAAmB;YACnB,OAAO,CAAC,CAAC,2BAA2B;gBAChC,CAAC,CAAC,CAAC,2BAA2B,CAAC,QAAQ,IAAI,2BAA2B,CAAC,GAAG,CAAC,CAAC;SACjF;QAAC,WAAM;YACN,OAAO,KAAK,CAAC;SACd;IACH,CAAC;IAEO,iBAAiB;QACvB,IAAI;YACF,OAAO,CAAC,CAAC,IAAI,CAAC,MAAM,IAAI,CAAC,CAAC,IAAI,CAAC,MAAM,CAAC,QAAQ,IAAI,aAAa,IAAI,IAAI,CAAC,MAAM,CAAC;SAChF;QAAC,WAAM;YACN,OAAO,KAAK,CAAC;SACd;IACH,CAAC;CACF;AAED,SAAS,4BAA4B,CAAC,GAAQ;IAC5C,OAAO,MAAM,CAAC,wBAAwB,CAAC,GAAG,EAAE,mBAAmB,CAAC,CAAC;AACnE,CAAC;AAED;;GAEG;AACH,MAAM,OAAO,oBAAoB;IAC/B;;OAEG;IACH,SAAS,CAAC,MAAiD,IAAS,CAAC;IAErE;;OAEG;IACH,iBAAiB;QACf,OAAO,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC;IAChB,CAAC;IAED;;OAEG;IACH,gBAAgB,CAAC,QAA0B,IAAS,CAAC;IAErD;;OAEG;IACH,cAAc,CAAC,MAAc,IAAS,CAAC;IAEvC;;OAEG;IACH,2BAA2B,CAAC,iBAAkC,IAAS,CAAC;CACzE","sourcesContent":["/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {ɵɵdefineInjectable, ɵɵinject} from '@angular/core';\n\nimport {DOCUMENT} from './dom_tokens';\n\n\n\n/**\n * Defines a scroll position manager. Implemented by `BrowserViewportScroller`.\n *\n * @publicApi\n */\nexport abstract class ViewportScroller {\n  // De-sugared tree-shakable injection\n  // See #23917\n  /** @nocollapse */\n  static ɵprov = ɵɵdefineInjectable({\n    token: ViewportScroller,\n    providedIn: 'root',\n    factory: () => new BrowserViewportScroller(ɵɵinject(DOCUMENT), window)\n  });\n\n  /**\n   * Configures the top offset used when scrolling to an anchor.\n   * @param offset A position in screen coordinates (a tuple with x and y values)\n   * or a function that returns the top offset position.\n   *\n   */\n  abstract setOffset(offset: [number, number]|(() => [number, number])): void;\n\n  /**\n   * Retrieves the current scroll position.\n   * @returns A position in screen coordinates (a tuple with x and y values).\n   */\n  abstract getScrollPosition(): [number, number];\n\n  /**\n   * Scrolls to a specified position.\n   * @param position A position in screen coordinates (a tuple with x and y values).\n   */\n  abstract scrollToPosition(position: [number, number]): void;\n\n  /**\n   * Scrolls to an anchor element.\n   * @param anchor The ID of the anchor element.\n   */\n  abstract scrollToAnchor(anchor: string): void;\n\n  /**\n   * Disables automatic scroll restoration provided by the browser.\n   * See also [window.history.scrollRestoration\n   * info](https://developers.google.com/web/updates/2015/09/history-api-scroll-restoration).\n   */\n  abstract setHistoryScrollRestoration(scrollRestoration: 'auto'|'manual'): void;\n}\n\n/**\n * Manages the scroll position for a browser window.\n */\nexport class BrowserViewportScroller implements ViewportScroller {\n  private offset: () => [number, number] = () => [0, 0];\n\n  constructor(private document: Document, private window: Window) {}\n\n  /**\n   * Configures the top offset used when scrolling to an anchor.\n   * @param offset A position in screen coordinates (a tuple with x and y values)\n   * or a function that returns the top offset position.\n   *\n   */\n  setOffset(offset: [number, number]|(() => [number, number])): void {\n    if (Array.isArray(offset)) {\n      this.offset = () => offset;\n    } else {\n      this.offset = offset;\n    }\n  }\n\n  /**\n   * Retrieves the current scroll position.\n   * @returns The position in screen coordinates.\n   */\n  getScrollPosition(): [number, number] {\n    if (this.supportsScrolling()) {\n      return [this.window.pageXOffset, this.window.pageYOffset];\n    } else {\n      return [0, 0];\n    }\n  }\n\n  /**\n   * Sets the scroll position.\n   * @param position The new position in screen coordinates.\n   */\n  scrollToPosition(position: [number, number]): void {\n    if (this.supportsScrolling()) {\n      this.window.scrollTo(position[0], position[1]);\n    }\n  }\n\n  /**\n   * Scrolls to an element and attempts to focus the element.\n   *\n   * Note that the function name here is misleading in that the target string may be an ID for a\n   * non-anchor element.\n   *\n   * @param target The ID of an element or name of the anchor.\n   *\n   * @see https://html.spec.whatwg.org/#the-indicated-part-of-the-document\n   * @see https://html.spec.whatwg.org/#scroll-to-fragid\n   */\n  scrollToAnchor(target: string): void {\n    if (!this.supportsScrolling()) {\n      return;\n    }\n    // TODO(atscott): The correct behavior for `getElementsByName` would be to also verify that the\n    // element is an anchor. However, this could be considered a breaking change and should be\n    // done in a major version.\n    const elSelected: HTMLElement|undefined =\n        this.document.getElementById(target) ?? this.document.getElementsByName(target)[0];\n    if (elSelected === undefined) {\n      return;\n    }\n\n    this.scrollToElement(elSelected);\n    // After scrolling to the element, the spec dictates that we follow the focus steps for the\n    // target. Rather than following the robust steps, simply attempt focus.\n    this.attemptFocus(elSelected);\n  }\n\n  /**\n   * Disables automatic scroll restoration provided by the browser.\n   */\n  setHistoryScrollRestoration(scrollRestoration: 'auto'|'manual'): void {\n    if (this.supportScrollRestoration()) {\n      const history = this.window.history;\n      if (history && history.scrollRestoration) {\n        history.scrollRestoration = scrollRestoration;\n      }\n    }\n  }\n\n  /**\n   * Scrolls to an element using the native offset and the specified offset set on this scroller.\n   *\n   * The offset can be used when we know that there is a floating header and scrolling naively to an\n   * element (ex: `scrollIntoView`) leaves the element hidden behind the floating header.\n   */\n  private scrollToElement(el: HTMLElement): void {\n    const rect = el.getBoundingClientRect();\n    const left = rect.left + this.window.pageXOffset;\n    const top = rect.top + this.window.pageYOffset;\n    const offset = this.offset();\n    this.window.scrollTo(left - offset[0], top - offset[1]);\n  }\n\n  /**\n   * Calls `focus` on the `focusTarget` and returns `true` if the element was focused successfully.\n   *\n   * If `false`, further steps may be necessary to determine a valid substitute to be focused\n   * instead.\n   *\n   * @see https://html.spec.whatwg.org/#get-the-focusable-area\n   * @see https://developer.mozilla.org/en-US/docs/Web/API/HTMLOrForeignElement/focus\n   * @see https://html.spec.whatwg.org/#focusable-area\n   */\n  private attemptFocus(focusTarget: HTMLElement): boolean {\n    focusTarget.focus();\n    return this.document.activeElement === focusTarget;\n  }\n\n  /**\n   * We only support scroll restoration when we can get a hold of window.\n   * This means that we do not support this behavior when running in a web worker.\n   *\n   * Lifting this restriction right now would require more changes in the dom adapter.\n   * Since webworkers aren't widely used, we will lift it once RouterScroller is\n   * battle-tested.\n   */\n  private supportScrollRestoration(): boolean {\n    try {\n      if (!this.supportsScrolling()) {\n        return false;\n      }\n      // The `scrollRestoration` property could be on the `history` instance or its prototype.\n      const scrollRestorationDescriptor = getScrollRestorationProperty(this.window.history) ||\n          getScrollRestorationProperty(Object.getPrototypeOf(this.window.history));\n      // We can write to the `scrollRestoration` property if it is a writable data field or it has a\n      // setter function.\n      return !!scrollRestorationDescriptor &&\n          !!(scrollRestorationDescriptor.writable || scrollRestorationDescriptor.set);\n    } catch {\n      return false;\n    }\n  }\n\n  private supportsScrolling(): boolean {\n    try {\n      return !!this.window && !!this.window.scrollTo && 'pageXOffset' in this.window;\n    } catch {\n      return false;\n    }\n  }\n}\n\nfunction getScrollRestorationProperty(obj: any): PropertyDescriptor|undefined {\n  return Object.getOwnPropertyDescriptor(obj, 'scrollRestoration');\n}\n\n/**\n * Provides an empty implementation of the viewport scroller.\n */\nexport class NullViewportScroller implements ViewportScroller {\n  /**\n   * Empty implementation\n   */\n  setOffset(offset: [number, number]|(() => [number, number])): void {}\n\n  /**\n   * Empty implementation\n   */\n  getScrollPosition(): [number, number] {\n    return [0, 0];\n  }\n\n  /**\n   * Empty implementation\n   */\n  scrollToPosition(position: [number, number]): void {}\n\n  /**\n   * Empty implementation\n   */\n  scrollToAnchor(anchor: string): void {}\n\n  /**\n   * Empty implementation\n   */\n  setHistoryScrollRestoration(scrollRestoration: 'auto'|'manual'): void {}\n}\n"]}