@angular/material
Version:
Angular Material
960 lines (953 loc) • 44.1 kB
JavaScript
import { SecurityContext, Injectable, Optional, Inject, ErrorHandler, ɵɵdefineInjectable, ɵɵinject, SkipSelf, InjectionToken, inject, Component, ViewEncapsulation, ChangeDetectionStrategy, ElementRef, Attribute, Input, NgModule } from '@angular/core';
import { mixinColor, MatCommonModule } from '@angular/material/core';
import { __extends, __read } from 'tslib';
import { coerceBooleanProperty } from '@angular/cdk/coercion';
import { DOCUMENT } from '@angular/common';
import { tap, map, catchError, finalize, share, take } from 'rxjs/operators';
import { HttpClient } from '@angular/common/http';
import { DomSanitizer } from '@angular/platform-browser';
import { of, throwError, forkJoin } from 'rxjs';
/**
* @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
*/
/**
* Returns an exception to be thrown in the case when attempting to
* load an icon with a name that cannot be found.
* @docs-private
*/
function getMatIconNameNotFoundError(iconName) {
return Error("Unable to find icon with the name \"" + iconName + "\"");
}
/**
* Returns an exception to be thrown when the consumer attempts to use
* `<mat-icon>` without including @angular/common/http.
* @docs-private
*/
function getMatIconNoHttpProviderError() {
return Error('Could not find HttpClient provider for use with Angular Material icons. ' +
'Please include the HttpClientModule from @angular/common/http in your ' +
'app imports.');
}
/**
* Returns an exception to be thrown when a URL couldn't be sanitized.
* @param url URL that was attempted to be sanitized.
* @docs-private
*/
function getMatIconFailedToSanitizeUrlError(url) {
return Error("The URL provided to MatIconRegistry was not trusted as a resource URL " +
("via Angular's DomSanitizer. Attempted URL was \"" + url + "\"."));
}
/**
* Returns an exception to be thrown when a HTML string couldn't be sanitized.
* @param literal HTML that was attempted to be sanitized.
* @docs-private
*/
function getMatIconFailedToSanitizeLiteralError(literal) {
return Error("The literal provided to MatIconRegistry was not trusted as safe HTML by " +
("Angular's DomSanitizer. Attempted literal was \"" + literal + "\"."));
}
/**
* Configuration for an icon, including the URL and possibly the cached SVG element.
* @docs-private
*/
var SvgIconConfig = /** @class */ (function () {
function SvgIconConfig(data, options) {
this.options = options;
// Note that we can't use `instanceof SVGElement` here,
// because it'll break during server-side rendering.
if (!!data.nodeName) {
this.svgElement = data;
}
else {
this.url = data;
}
}
return SvgIconConfig;
}());
/**
* Service to register and display icons used by the `<mat-icon>` component.
* - Registers icon URLs by namespace and name.
* - Registers icon set URLs by namespace.
* - Registers aliases for CSS classes, for use with icon fonts.
* - Loads icons from URLs and extracts individual icons from icon sets.
*/
var MatIconRegistry = /** @class */ (function () {
function MatIconRegistry(_httpClient, _sanitizer, document,
// @breaking-change 9.0.0 _errorHandler parameter to be made required
_errorHandler) {
this._httpClient = _httpClient;
this._sanitizer = _sanitizer;
this._errorHandler = _errorHandler;
/**
* URLs and cached SVG elements for individual icons. Keys are of the format "[namespace]:[icon]".
*/
this._svgIconConfigs = new Map();
/**
* SvgIconConfig objects and cached SVG elements for icon sets, keyed by namespace.
* Multiple icon sets can be registered under the same namespace.
*/
this._iconSetConfigs = new Map();
/** Cache for icons loaded by direct URLs. */
this._cachedIconsByUrl = new Map();
/** In-progress icon fetches. Used to coalesce multiple requests to the same URL. */
this._inProgressUrlFetches = new Map();
/** Map from font identifiers to their CSS class names. Used for icon fonts. */
this._fontCssClassesByAlias = new Map();
/**
* The CSS class to apply when an `<mat-icon>` component has no icon name, url, or font specified.
* The default 'material-icons' value assumes that the material icon font has been loaded as
* described at http://google.github.io/material-design-icons/#icon-font-for-the-web
*/
this._defaultFontSetClass = 'material-icons';
this._document = document;
}
/**
* Registers an icon by URL in the default namespace.
* @param iconName Name under which the icon should be registered.
* @param url
*/
MatIconRegistry.prototype.addSvgIcon = function (iconName, url, options) {
return this.addSvgIconInNamespace('', iconName, url, options);
};
/**
* Registers an icon using an HTML string in the default namespace.
* @param iconName Name under which the icon should be registered.
* @param literal SVG source of the icon.
*/
MatIconRegistry.prototype.addSvgIconLiteral = function (iconName, literal, options) {
return this.addSvgIconLiteralInNamespace('', iconName, literal, options);
};
/**
* Registers an icon by URL in the specified namespace.
* @param namespace Namespace in which the icon should be registered.
* @param iconName Name under which the icon should be registered.
* @param url
*/
MatIconRegistry.prototype.addSvgIconInNamespace = function (namespace, iconName, url, options) {
return this._addSvgIconConfig(namespace, iconName, new SvgIconConfig(url, options));
};
/**
* Registers an icon using an HTML string in the specified namespace.
* @param namespace Namespace in which the icon should be registered.
* @param iconName Name under which the icon should be registered.
* @param literal SVG source of the icon.
*/
MatIconRegistry.prototype.addSvgIconLiteralInNamespace = function (namespace, iconName, literal, options) {
var sanitizedLiteral = this._sanitizer.sanitize(SecurityContext.HTML, literal);
if (!sanitizedLiteral) {
throw getMatIconFailedToSanitizeLiteralError(literal);
}
var svgElement = this._createSvgElementForSingleIcon(sanitizedLiteral, options);
return this._addSvgIconConfig(namespace, iconName, new SvgIconConfig(svgElement, options));
};
/**
* Registers an icon set by URL in the default namespace.
* @param url
*/
MatIconRegistry.prototype.addSvgIconSet = function (url, options) {
return this.addSvgIconSetInNamespace('', url, options);
};
/**
* Registers an icon set using an HTML string in the default namespace.
* @param literal SVG source of the icon set.
*/
MatIconRegistry.prototype.addSvgIconSetLiteral = function (literal, options) {
return this.addSvgIconSetLiteralInNamespace('', literal, options);
};
/**
* Registers an icon set by URL in the specified namespace.
* @param namespace Namespace in which to register the icon set.
* @param url
*/
MatIconRegistry.prototype.addSvgIconSetInNamespace = function (namespace, url, options) {
return this._addSvgIconSetConfig(namespace, new SvgIconConfig(url, options));
};
/**
* Registers an icon set using an HTML string in the specified namespace.
* @param namespace Namespace in which to register the icon set.
* @param literal SVG source of the icon set.
*/
MatIconRegistry.prototype.addSvgIconSetLiteralInNamespace = function (namespace, literal, options) {
var sanitizedLiteral = this._sanitizer.sanitize(SecurityContext.HTML, literal);
if (!sanitizedLiteral) {
throw getMatIconFailedToSanitizeLiteralError(literal);
}
var svgElement = this._svgElementFromString(sanitizedLiteral);
return this._addSvgIconSetConfig(namespace, new SvgIconConfig(svgElement, options));
};
/**
* Defines an alias for a CSS class name to be used for icon fonts. Creating an matIcon
* component with the alias as the fontSet input will cause the class name to be applied
* to the `<mat-icon>` element.
*
* @param alias Alias for the font.
* @param className Class name override to be used instead of the alias.
*/
MatIconRegistry.prototype.registerFontClassAlias = function (alias, className) {
if (className === void 0) { className = alias; }
this._fontCssClassesByAlias.set(alias, className);
return this;
};
/**
* Returns the CSS class name associated with the alias by a previous call to
* registerFontClassAlias. If no CSS class has been associated, returns the alias unmodified.
*/
MatIconRegistry.prototype.classNameForFontAlias = function (alias) {
return this._fontCssClassesByAlias.get(alias) || alias;
};
/**
* Sets the CSS class name to be used for icon fonts when an `<mat-icon>` component does not
* have a fontSet input value, and is not loading an icon by name or URL.
*
* @param className
*/
MatIconRegistry.prototype.setDefaultFontSetClass = function (className) {
this._defaultFontSetClass = className;
return this;
};
/**
* Returns the CSS class name to be used for icon fonts when an `<mat-icon>` component does not
* have a fontSet input value, and is not loading an icon by name or URL.
*/
MatIconRegistry.prototype.getDefaultFontSetClass = function () {
return this._defaultFontSetClass;
};
/**
* Returns an Observable that produces the icon (as an `<svg>` DOM element) from the given URL.
* The response from the URL may be cached so this will not always cause an HTTP request, but
* the produced element will always be a new copy of the originally fetched icon. (That is,
* it will not contain any modifications made to elements previously returned).
*
* @param safeUrl URL from which to fetch the SVG icon.
*/
MatIconRegistry.prototype.getSvgIconFromUrl = function (safeUrl) {
var _this = this;
var url = this._sanitizer.sanitize(SecurityContext.RESOURCE_URL, safeUrl);
if (!url) {
throw getMatIconFailedToSanitizeUrlError(safeUrl);
}
var cachedIcon = this._cachedIconsByUrl.get(url);
if (cachedIcon) {
return of(cloneSvg(cachedIcon));
}
return this._loadSvgIconFromConfig(new SvgIconConfig(safeUrl)).pipe(tap(function (svg) { return _this._cachedIconsByUrl.set(url, svg); }), map(function (svg) { return cloneSvg(svg); }));
};
/**
* Returns an Observable that produces the icon (as an `<svg>` DOM element) with the given name
* and namespace. The icon must have been previously registered with addIcon or addIconSet;
* if not, the Observable will throw an error.
*
* @param name Name of the icon to be retrieved.
* @param namespace Namespace in which to look for the icon.
*/
MatIconRegistry.prototype.getNamedSvgIcon = function (name, namespace) {
if (namespace === void 0) { namespace = ''; }
// Return (copy of) cached icon if possible.
var key = iconKey(namespace, name);
var config = this._svgIconConfigs.get(key);
if (config) {
return this._getSvgFromConfig(config);
}
// See if we have any icon sets registered for the namespace.
var iconSetConfigs = this._iconSetConfigs.get(namespace);
if (iconSetConfigs) {
return this._getSvgFromIconSetConfigs(name, iconSetConfigs);
}
return throwError(getMatIconNameNotFoundError(key));
};
MatIconRegistry.prototype.ngOnDestroy = function () {
this._svgIconConfigs.clear();
this._iconSetConfigs.clear();
this._cachedIconsByUrl.clear();
};
/**
* Returns the cached icon for a SvgIconConfig if available, or fetches it from its URL if not.
*/
MatIconRegistry.prototype._getSvgFromConfig = function (config) {
if (config.svgElement) {
// We already have the SVG element for this icon, return a copy.
return of(cloneSvg(config.svgElement));
}
else {
// Fetch the icon from the config's URL, cache it, and return a copy.
return this._loadSvgIconFromConfig(config).pipe(tap(function (svg) { return config.svgElement = svg; }), map(function (svg) { return cloneSvg(svg); }));
}
};
/**
* Attempts to find an icon with the specified name in any of the SVG icon sets.
* First searches the available cached icons for a nested element with a matching name, and
* if found copies the element to a new `<svg>` element. If not found, fetches all icon sets
* that have not been cached, and searches again after all fetches are completed.
* The returned Observable produces the SVG element if possible, and throws
* an error if no icon with the specified name can be found.
*/
MatIconRegistry.prototype._getSvgFromIconSetConfigs = function (name, iconSetConfigs) {
var _this = this;
// For all the icon set SVG elements we've fetched, see if any contain an icon with the
// requested name.
var namedIcon = this._extractIconWithNameFromAnySet(name, iconSetConfigs);
if (namedIcon) {
// We could cache namedIcon in _svgIconConfigs, but since we have to make a copy every
// time anyway, there's probably not much advantage compared to just always extracting
// it from the icon set.
return of(namedIcon);
}
// Not found in any cached icon sets. If there are icon sets with URLs that we haven't
// fetched, fetch them now and look for iconName in the results.
var iconSetFetchRequests = iconSetConfigs
.filter(function (iconSetConfig) { return !iconSetConfig.svgElement; })
.map(function (iconSetConfig) {
return _this._loadSvgIconSetFromConfig(iconSetConfig).pipe(catchError(function (err) {
var url = _this._sanitizer.sanitize(SecurityContext.RESOURCE_URL, iconSetConfig.url);
// Swallow errors fetching individual URLs so the
// combined Observable won't necessarily fail.
var errorMessage = "Loading icon set URL: " + url + " failed: " + err.message;
// @breaking-change 9.0.0 _errorHandler parameter to be made required
if (_this._errorHandler) {
_this._errorHandler.handleError(new Error(errorMessage));
}
else {
console.error(errorMessage);
}
return of(null);
}));
});
// Fetch all the icon set URLs. When the requests complete, every IconSet should have a
// cached SVG element (unless the request failed), and we can check again for the icon.
return forkJoin(iconSetFetchRequests).pipe(map(function () {
var foundIcon = _this._extractIconWithNameFromAnySet(name, iconSetConfigs);
if (!foundIcon) {
throw getMatIconNameNotFoundError(name);
}
return foundIcon;
}));
};
/**
* Searches the cached SVG elements for the given icon sets for a nested icon element whose "id"
* tag matches the specified name. If found, copies the nested element to a new SVG element and
* returns it. Returns null if no matching element is found.
*/
MatIconRegistry.prototype._extractIconWithNameFromAnySet = function (iconName, iconSetConfigs) {
// Iterate backwards, so icon sets added later have precedence.
for (var i = iconSetConfigs.length - 1; i >= 0; i--) {
var config = iconSetConfigs[i];
if (config.svgElement) {
var foundIcon = this._extractSvgIconFromSet(config.svgElement, iconName, config.options);
if (foundIcon) {
return foundIcon;
}
}
}
return null;
};
/**
* Loads the content of the icon URL specified in the SvgIconConfig and creates an SVG element
* from it.
*/
MatIconRegistry.prototype._loadSvgIconFromConfig = function (config) {
var _this = this;
return this._fetchUrl(config.url)
.pipe(map(function (svgText) { return _this._createSvgElementForSingleIcon(svgText, config.options); }));
};
/**
* Loads the content of the icon set URL specified in the SvgIconConfig and creates an SVG element
* from it.
*/
MatIconRegistry.prototype._loadSvgIconSetFromConfig = function (config) {
var _this = this;
// If the SVG for this icon set has already been parsed, do nothing.
if (config.svgElement) {
return of(config.svgElement);
}
return this._fetchUrl(config.url).pipe(map(function (svgText) {
// It is possible that the icon set was parsed and cached by an earlier request, so parsing
// only needs to occur if the cache is yet unset.
if (!config.svgElement) {
config.svgElement = _this._svgElementFromString(svgText);
}
return config.svgElement;
}));
};
/**
* Creates a DOM element from the given SVG string, and adds default attributes.
*/
MatIconRegistry.prototype._createSvgElementForSingleIcon = function (responseText, options) {
var svg = this._svgElementFromString(responseText);
this._setSvgAttributes(svg, options);
return svg;
};
/**
* Searches the cached element of the given SvgIconConfig for a nested icon element whose "id"
* tag matches the specified name. If found, copies the nested element to a new SVG element and
* returns it. Returns null if no matching element is found.
*/
MatIconRegistry.prototype._extractSvgIconFromSet = function (iconSet, iconName, options) {
// Use the `id="iconName"` syntax in order to escape special
// characters in the ID (versus using the #iconName syntax).
var iconSource = iconSet.querySelector("[id=\"" + iconName + "\"]");
if (!iconSource) {
return null;
}
// Clone the element and remove the ID to prevent multiple elements from being added
// to the page with the same ID.
var iconElement = iconSource.cloneNode(true);
iconElement.removeAttribute('id');
// If the icon node is itself an <svg> node, clone and return it directly. If not, set it as
// the content of a new <svg> node.
if (iconElement.nodeName.toLowerCase() === 'svg') {
return this._setSvgAttributes(iconElement, options);
}
// If the node is a <symbol>, it won't be rendered so we have to convert it into <svg>. Note
// that the same could be achieved by referring to it via <use href="#id">, however the <use>
// tag is problematic on Firefox, because it needs to include the current page path.
if (iconElement.nodeName.toLowerCase() === 'symbol') {
return this._setSvgAttributes(this._toSvgElement(iconElement), options);
}
// createElement('SVG') doesn't work as expected; the DOM ends up with
// the correct nodes, but the SVG content doesn't render. Instead we
// have to create an empty SVG node using innerHTML and append its content.
// Elements created using DOMParser.parseFromString have the same problem.
// http://stackoverflow.com/questions/23003278/svg-innerhtml-in-firefox-can-not-display
var svg = this._svgElementFromString('<svg></svg>');
// Clone the node so we don't remove it from the parent icon set element.
svg.appendChild(iconElement);
return this._setSvgAttributes(svg, options);
};
/**
* Creates a DOM element from the given SVG string.
*/
MatIconRegistry.prototype._svgElementFromString = function (str) {
var div = this._document.createElement('DIV');
div.innerHTML = str;
var svg = div.querySelector('svg');
if (!svg) {
throw Error('<svg> tag not found');
}
return svg;
};
/**
* Converts an element into an SVG node by cloning all of its children.
*/
MatIconRegistry.prototype._toSvgElement = function (element) {
var svg = this._svgElementFromString('<svg></svg>');
var attributes = element.attributes;
// Copy over all the attributes from the `symbol` to the new SVG, except the id.
for (var i = 0; i < attributes.length; i++) {
var _a = attributes[i], name_1 = _a.name, value = _a.value;
if (name_1 !== 'id') {
svg.setAttribute(name_1, value);
}
}
for (var i = 0; i < element.childNodes.length; i++) {
if (element.childNodes[i].nodeType === this._document.ELEMENT_NODE) {
svg.appendChild(element.childNodes[i].cloneNode(true));
}
}
return svg;
};
/**
* Sets the default attributes for an SVG element to be used as an icon.
*/
MatIconRegistry.prototype._setSvgAttributes = function (svg, options) {
svg.setAttribute('fit', '');
svg.setAttribute('height', '100%');
svg.setAttribute('width', '100%');
svg.setAttribute('preserveAspectRatio', 'xMidYMid meet');
svg.setAttribute('focusable', 'false'); // Disable IE11 default behavior to make SVGs focusable.
if (options && options.viewBox) {
svg.setAttribute('viewBox', options.viewBox);
}
return svg;
};
/**
* Returns an Observable which produces the string contents of the given URL. Results may be
* cached, so future calls with the same URL may not cause another HTTP request.
*/
MatIconRegistry.prototype._fetchUrl = function (safeUrl) {
var _this = this;
if (!this._httpClient) {
throw getMatIconNoHttpProviderError();
}
if (safeUrl == null) {
throw Error("Cannot fetch icon from URL \"" + safeUrl + "\".");
}
var url = this._sanitizer.sanitize(SecurityContext.RESOURCE_URL, safeUrl);
if (!url) {
throw getMatIconFailedToSanitizeUrlError(safeUrl);
}
// Store in-progress fetches to avoid sending a duplicate request for a URL when there is
// already a request in progress for that URL. It's necessary to call share() on the
// Observable returned by http.get() so that multiple subscribers don't cause multiple XHRs.
var inProgressFetch = this._inProgressUrlFetches.get(url);
if (inProgressFetch) {
return inProgressFetch;
}
// TODO(jelbourn): for some reason, the `finalize` operator "loses" the generic type on the
// Observable. Figure out why and fix it.
var req = this._httpClient.get(url, { responseType: 'text' }).pipe(finalize(function () { return _this._inProgressUrlFetches.delete(url); }), share());
this._inProgressUrlFetches.set(url, req);
return req;
};
/**
* Registers an icon config by name in the specified namespace.
* @param namespace Namespace in which to register the icon config.
* @param iconName Name under which to register the config.
* @param config Config to be registered.
*/
MatIconRegistry.prototype._addSvgIconConfig = function (namespace, iconName, config) {
this._svgIconConfigs.set(iconKey(namespace, iconName), config);
return this;
};
/**
* Registers an icon set config in the specified namespace.
* @param namespace Namespace in which to register the icon config.
* @param config Config to be registered.
*/
MatIconRegistry.prototype._addSvgIconSetConfig = function (namespace, config) {
var configNamespace = this._iconSetConfigs.get(namespace);
if (configNamespace) {
configNamespace.push(config);
}
else {
this._iconSetConfigs.set(namespace, [config]);
}
return this;
};
MatIconRegistry.decorators = [
{ type: Injectable, args: [{ providedIn: 'root' },] }
];
/** @nocollapse */
MatIconRegistry.ctorParameters = function () { return [
{ type: HttpClient, decorators: [{ type: Optional }] },
{ type: DomSanitizer },
{ type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [DOCUMENT,] }] },
{ type: ErrorHandler, decorators: [{ type: Optional }] }
]; };
MatIconRegistry.ɵprov = ɵɵdefineInjectable({ factory: function MatIconRegistry_Factory() { return new MatIconRegistry(ɵɵinject(HttpClient, 8), ɵɵinject(DomSanitizer), ɵɵinject(DOCUMENT, 8), ɵɵinject(ErrorHandler, 8)); }, token: MatIconRegistry, providedIn: "root" });
return MatIconRegistry;
}());
/** @docs-private */
function ICON_REGISTRY_PROVIDER_FACTORY(parentRegistry, httpClient, sanitizer, document, errorHandler) {
return parentRegistry || new MatIconRegistry(httpClient, sanitizer, document, errorHandler);
}
/** @docs-private */
var ICON_REGISTRY_PROVIDER = {
// If there is already an MatIconRegistry available, use that. Otherwise, provide a new one.
provide: MatIconRegistry,
deps: [
[new Optional(), new SkipSelf(), MatIconRegistry],
[new Optional(), HttpClient],
DomSanitizer,
[new Optional(), ErrorHandler],
[new Optional(), DOCUMENT],
],
useFactory: ICON_REGISTRY_PROVIDER_FACTORY,
};
/** Clones an SVGElement while preserving type information. */
function cloneSvg(svg) {
return svg.cloneNode(true);
}
/** Returns the cache key to use for an icon namespace and name. */
function iconKey(namespace, name) {
return namespace + ':' + name;
}
/**
* @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
*/
// Boilerplate for applying mixins to MatIcon.
/** @docs-private */
var MatIconBase = /** @class */ (function () {
function MatIconBase(_elementRef) {
this._elementRef = _elementRef;
}
return MatIconBase;
}());
var _MatIconMixinBase = mixinColor(MatIconBase);
/**
* Injection token used to provide the current location to `MatIcon`.
* Used to handle server-side rendering and to stub out during unit tests.
* @docs-private
*/
var MAT_ICON_LOCATION = new InjectionToken('mat-icon-location', {
providedIn: 'root',
factory: MAT_ICON_LOCATION_FACTORY
});
/** @docs-private */
function MAT_ICON_LOCATION_FACTORY() {
var _document = inject(DOCUMENT);
var _location = _document ? _document.location : null;
return {
// Note that this needs to be a function, rather than a property, because Angular
// will only resolve it once, but we want the current path on each call.
getPathname: function () { return _location ? (_location.pathname + _location.search) : ''; }
};
}
/** SVG attributes that accept a FuncIRI (e.g. `url(<something>)`). */
var funcIriAttributes = [
'clip-path',
'color-profile',
'src',
'cursor',
'fill',
'filter',
'marker',
'marker-start',
'marker-mid',
'marker-end',
'mask',
'stroke'
];
var ɵ0 = function (attr) { return "[" + attr + "]"; };
/** Selector that can be used to find all elements that are using a `FuncIRI`. */
var funcIriAttributeSelector = funcIriAttributes.map(ɵ0).join(', ');
/** Regex that can be used to extract the id out of a FuncIRI. */
var funcIriPattern = /^url\(['"]?#(.*?)['"]?\)$/;
/**
* Component to display an icon. It can be used in the following ways:
*
* - Specify the svgIcon input to load an SVG icon from a URL previously registered with the
* addSvgIcon, addSvgIconInNamespace, addSvgIconSet, or addSvgIconSetInNamespace methods of
* MatIconRegistry. If the svgIcon value contains a colon it is assumed to be in the format
* "[namespace]:[name]", if not the value will be the name of an icon in the default namespace.
* Examples:
* `<mat-icon svgIcon="left-arrow"></mat-icon>
* <mat-icon svgIcon="animals:cat"></mat-icon>`
*
* - Use a font ligature as an icon by putting the ligature text in the content of the `<mat-icon>`
* component. By default the Material icons font is used as described at
* http://google.github.io/material-design-icons/#icon-font-for-the-web. You can specify an
* alternate font by setting the fontSet input to either the CSS class to apply to use the
* desired font, or to an alias previously registered with MatIconRegistry.registerFontClassAlias.
* Examples:
* `<mat-icon>home</mat-icon>
* <mat-icon fontSet="myfont">sun</mat-icon>`
*
* - Specify a font glyph to be included via CSS rules by setting the fontSet input to specify the
* font, and the fontIcon input to specify the icon. Typically the fontIcon will specify a
* CSS class which causes the glyph to be displayed via a :before selector, as in
* https://fortawesome.github.io/Font-Awesome/examples/
* Example:
* `<mat-icon fontSet="fa" fontIcon="alarm"></mat-icon>`
*/
var MatIcon = /** @class */ (function (_super) {
__extends(MatIcon, _super);
function MatIcon(elementRef, _iconRegistry, ariaHidden,
/**
* @deprecated `location` parameter to be made required.
* @breaking-change 8.0.0
*/
_location,
// @breaking-change 9.0.0 _errorHandler parameter to be made required
_errorHandler) {
var _this = _super.call(this, elementRef) || this;
_this._iconRegistry = _iconRegistry;
_this._location = _location;
_this._errorHandler = _errorHandler;
_this._inline = false;
// If the user has not explicitly set aria-hidden, mark the icon as hidden, as this is
// the right thing to do for the majority of icon use-cases.
if (!ariaHidden) {
elementRef.nativeElement.setAttribute('aria-hidden', 'true');
}
return _this;
}
Object.defineProperty(MatIcon.prototype, "inline", {
/**
* Whether the icon should be inlined, automatically sizing the icon to match the font size of
* the element the icon is contained in.
*/
get: function () {
return this._inline;
},
set: function (inline) {
this._inline = coerceBooleanProperty(inline);
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatIcon.prototype, "fontSet", {
/** Font set that the icon is a part of. */
get: function () { return this._fontSet; },
set: function (value) {
this._fontSet = this._cleanupFontValue(value);
},
enumerable: true,
configurable: true
});
Object.defineProperty(MatIcon.prototype, "fontIcon", {
/** Name of an icon within a font set. */
get: function () { return this._fontIcon; },
set: function (value) {
this._fontIcon = this._cleanupFontValue(value);
},
enumerable: true,
configurable: true
});
/**
* Splits an svgIcon binding value into its icon set and icon name components.
* Returns a 2-element array of [(icon set), (icon name)].
* The separator for the two fields is ':'. If there is no separator, an empty
* string is returned for the icon set and the entire value is returned for
* the icon name. If the argument is falsy, returns an array of two empty strings.
* Throws an error if the name contains two or more ':' separators.
* Examples:
* `'social:cake' -> ['social', 'cake']
* 'penguin' -> ['', 'penguin']
* null -> ['', '']
* 'a:b:c' -> (throws Error)`
*/
MatIcon.prototype._splitIconName = function (iconName) {
if (!iconName) {
return ['', ''];
}
var parts = iconName.split(':');
switch (parts.length) {
case 1: return ['', parts[0]]; // Use default namespace.
case 2: return parts;
default: throw Error("Invalid icon name: \"" + iconName + "\"");
}
};
MatIcon.prototype.ngOnChanges = function (changes) {
var _this = this;
// Only update the inline SVG icon if the inputs changed, to avoid unnecessary DOM operations.
var svgIconChanges = changes['svgIcon'];
if (svgIconChanges) {
if (this.svgIcon) {
var _a = __read(this._splitIconName(this.svgIcon), 2), namespace_1 = _a[0], iconName_1 = _a[1];
this._iconRegistry.getNamedSvgIcon(iconName_1, namespace_1)
.pipe(take(1))
.subscribe(function (svg) { return _this._setSvgElement(svg); }, function (err) {
var errorMessage = "Error retrieving icon " + namespace_1 + ":" + iconName_1 + "! " + err.message;
// @breaking-change 9.0.0 _errorHandler parameter to be made required.
if (_this._errorHandler) {
_this._errorHandler.handleError(new Error(errorMessage));
}
else {
console.error(errorMessage);
}
});
}
else if (svgIconChanges.previousValue) {
this._clearSvgElement();
}
}
if (this._usingFontIcon()) {
this._updateFontIconClasses();
}
};
MatIcon.prototype.ngOnInit = function () {
// Update font classes because ngOnChanges won't be called if none of the inputs are present,
// e.g. <mat-icon>arrow</mat-icon> In this case we need to add a CSS class for the default font.
if (this._usingFontIcon()) {
this._updateFontIconClasses();
}
};
MatIcon.prototype.ngAfterViewChecked = function () {
var cachedElements = this._elementsWithExternalReferences;
if (cachedElements && this._location && cachedElements.size) {
var newPath = this._location.getPathname();
// We need to check whether the URL has changed on each change detection since
// the browser doesn't have an API that will let us react on link clicks and
// we can't depend on the Angular router. The references need to be updated,
// because while most browsers don't care whether the URL is correct after
// the first render, Safari will break if the user navigates to a different
// page and the SVG isn't re-rendered.
if (newPath !== this._previousPath) {
this._previousPath = newPath;
this._prependPathToReferences(newPath);
}
}
};
MatIcon.prototype.ngOnDestroy = function () {
if (this._elementsWithExternalReferences) {
this._elementsWithExternalReferences.clear();
}
};
MatIcon.prototype._usingFontIcon = function () {
return !this.svgIcon;
};
MatIcon.prototype._setSvgElement = function (svg) {
this._clearSvgElement();
// Workaround for IE11 and Edge ignoring `style` tags inside dynamically-created SVGs.
// See: https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/10898469/
// Do this before inserting the element into the DOM, in order to avoid a style recalculation.
var styleTags = svg.querySelectorAll('style');
for (var i = 0; i < styleTags.length; i++) {
styleTags[i].textContent += ' ';
}
// Note: we do this fix here, rather than the icon registry, because the
// references have to point to the URL at the time that the icon was created.
if (this._location) {
var path = this._location.getPathname();
this._previousPath = path;
this._cacheChildrenWithExternalReferences(svg);
this._prependPathToReferences(path);
}
this._elementRef.nativeElement.appendChild(svg);
};
MatIcon.prototype._clearSvgElement = function () {
var layoutElement = this._elementRef.nativeElement;
var childCount = layoutElement.childNodes.length;
if (this._elementsWithExternalReferences) {
this._elementsWithExternalReferences.clear();
}
// Remove existing non-element child nodes and SVGs, and add the new SVG element. Note that
// we can't use innerHTML, because IE will throw if the element has a data binding.
while (childCount--) {
var child = layoutElement.childNodes[childCount];
// 1 corresponds to Node.ELEMENT_NODE. We remove all non-element nodes in order to get rid
// of any loose text nodes, as well as any SVG elements in order to remove any old icons.
if (child.nodeType !== 1 || child.nodeName.toLowerCase() === 'svg') {
layoutElement.removeChild(child);
}
}
};
MatIcon.prototype._updateFontIconClasses = function () {
if (!this._usingFontIcon()) {
return;
}
var elem = this._elementRef.nativeElement;
var fontSetClass = this.fontSet ?
this._iconRegistry.classNameForFontAlias(this.fontSet) :
this._iconRegistry.getDefaultFontSetClass();
if (fontSetClass != this._previousFontSetClass) {
if (this._previousFontSetClass) {
elem.classList.remove(this._previousFontSetClass);
}
if (fontSetClass) {
elem.classList.add(fontSetClass);
}
this._previousFontSetClass = fontSetClass;
}
if (this.fontIcon != this._previousFontIconClass) {
if (this._previousFontIconClass) {
elem.classList.remove(this._previousFontIconClass);
}
if (this.fontIcon) {
elem.classList.add(this.fontIcon);
}
this._previousFontIconClass = this.fontIcon;
}
};
/**
* Cleans up a value to be used as a fontIcon or fontSet.
* Since the value ends up being assigned as a CSS class, we
* have to trim the value and omit space-separated values.
*/
MatIcon.prototype._cleanupFontValue = function (value) {
return typeof value === 'string' ? value.trim().split(' ')[0] : value;
};
/**
* Prepends the current path to all elements that have an attribute pointing to a `FuncIRI`
* reference. This is required because WebKit browsers require references to be prefixed with
* the current path, if the page has a `base` tag.
*/
MatIcon.prototype._prependPathToReferences = function (path) {
var elements = this._elementsWithExternalReferences;
if (elements) {
elements.forEach(function (attrs, element) {
attrs.forEach(function (attr) {
element.setAttribute(attr.name, "url('" + path + "#" + attr.value + "')");
});
});
}
};
/**
* Caches the children of an SVG element that have `url()`
* references that we need to prefix with the current path.
*/
MatIcon.prototype._cacheChildrenWithExternalReferences = function (element) {
var elementsWithFuncIri = element.querySelectorAll(funcIriAttributeSelector);
var elements = this._elementsWithExternalReferences =
this._elementsWithExternalReferences || new Map();
var _loop_1 = function (i) {
funcIriAttributes.forEach(function (attr) {
var elementWithReference = elementsWithFuncIri[i];
var value = elementWithReference.getAttribute(attr);
var match = value ? value.match(funcIriPattern) : null;
if (match) {
var attributes = elements.get(elementWithReference);
if (!attributes) {
attributes = [];
elements.set(elementWithReference, attributes);
}
attributes.push({ name: attr, value: match[1] });
}
});
};
for (var i = 0; i < elementsWithFuncIri.length; i++) {
_loop_1(i);
}
};
MatIcon.decorators = [
{ type: Component, args: [{
template: '<ng-content></ng-content>',
selector: 'mat-icon',
exportAs: 'matIcon',
inputs: ['color'],
host: {
'role': 'img',
'class': 'mat-icon notranslate',
'[class.mat-icon-inline]': 'inline',
'[class.mat-icon-no-color]': 'color !== "primary" && color !== "accent" && color !== "warn"',
},
encapsulation: ViewEncapsulation.None,
changeDetection: ChangeDetectionStrategy.OnPush,
styles: [".mat-icon{background-repeat:no-repeat;display:inline-block;fill:currentColor;height:24px;width:24px}.mat-icon.mat-icon-inline{font-size:inherit;height:inherit;line-height:inherit;width:inherit}[dir=rtl] .mat-icon-rtl-mirror{transform:scale(-1, 1)}.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-prefix .mat-icon,.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-suffix .mat-icon{display:block}.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-prefix .mat-icon-button .mat-icon,.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-suffix .mat-icon-button .mat-icon{margin:auto}\n"]
}] }
];
/** @nocollapse */
MatIcon.ctorParameters = function () { return [
{ type: ElementRef },
{ type: MatIconRegistry },
{ type: String, decorators: [{ type: Attribute, args: ['aria-hidden',] }] },
{ type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_ICON_LOCATION,] }] },
{ type: ErrorHandler, decorators: [{ type: Optional }] }
]; };
MatIcon.propDecorators = {
inline: [{ type: Input }],
svgIcon: [{ type: Input }],
fontSet: [{ type: Input }],
fontIcon: [{ type: Input }]
};
return MatIcon;
}(_MatIconMixinBase));
/**
* @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
*/
var MatIconModule = /** @class */ (function () {
function MatIconModule() {
}
MatIconModule.decorators = [
{ type: NgModule, args: [{
imports: [MatCommonModule],
exports: [MatIcon, MatCommonModule],
declarations: [MatIcon],
},] }
];
return MatIconModule;
}());
/**
* @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
*/
/**
* Generated bundle index. Do not edit.
*/
export { ICON_REGISTRY_PROVIDER, ICON_REGISTRY_PROVIDER_FACTORY, MAT_ICON_LOCATION, MAT_ICON_LOCATION_FACTORY, MatIcon, MatIconModule, MatIconRegistry, getMatIconFailedToSanitizeLiteralError, getMatIconFailedToSanitizeUrlError, getMatIconNameNotFoundError, getMatIconNoHttpProviderError, ɵ0 };
//# sourceMappingURL=icon.js.map