@material/dom/dist/mdc.dom.js

/**
 * @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://github.com/material-components/material-components-web/blob/master/LICENSE
 */
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	if(typeof exports === 'object' && typeof module === 'object')
		module.exports = factory();
	else if(typeof define === 'function' && define.amd)
		define("@material/dom", [], factory);
	else if(typeof exports === 'object')
		exports["dom"] = factory();
	else
		root["mdc"] = root["mdc"] || {}, root["mdc"]["dom"] = factory();
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/***/ "./packages/mdc-dom/events.ts":
/*!************************************!*\
  !*** ./packages/mdc-dom/events.ts ***!
  \************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

/**
 * @license
 * Copyright 2019 Google Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

Object.defineProperty(exports, "__esModule", { value: true });
exports.applyPassive = void 0;
/**
 * Determine whether the current browser supports passive event listeners, and
 * if so, use them.
 */
function applyPassive(globalObj) {
    if (globalObj === void 0) {
        globalObj = window;
    }
    return supportsPassiveOption(globalObj) ? { passive: true } : false;
}
exports.applyPassive = applyPassive;
function supportsPassiveOption(globalObj) {
    if (globalObj === void 0) {
        globalObj = window;
    }
    // See
    // https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener
    var passiveSupported = false;
    try {
        var options = {
            // This function will be called when the browser
            // attempts to access the passive property.
            get passive() {
                passiveSupported = true;
                return false;
            }
        };
        var handler = function handler() {};
        globalObj.document.addEventListener('test', handler, options);
        globalObj.document.removeEventListener('test', handler, options);
    } catch (err) {
        passiveSupported = false;
    }
    return passiveSupported;
}

/***/ }),

/***/ "./packages/mdc-dom/focus-trap.ts":
/*!****************************************!*\
  !*** ./packages/mdc-dom/focus-trap.ts ***!
  \****************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

/**
 * @license
 * Copyright 2020 Google Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

Object.defineProperty(exports, "__esModule", { value: true });
exports.FocusTrap = void 0;
var FOCUS_SENTINEL_CLASS = 'mdc-dom-focus-sentinel';
/**
 * Utility to trap focus in a given root element, e.g. for modal components such
 * as dialogs. The root should have at least one focusable child element,
 * for setting initial focus when trapping focus.
 * Also tracks the previously focused element, and restores focus to that
 * element when releasing focus.
 */
var FocusTrap = /** @class */function () {
    function FocusTrap(root, options) {
        if (options === void 0) {
            options = {};
        }
        this.root = root;
        this.options = options;
        // Previously focused element before trapping focus.
        this.elFocusedBeforeTrapFocus = null;
    }
    /**
     * Traps focus in `root`. Also focuses on either `initialFocusEl` if set;
     * otherwises sets initial focus to the first focusable child element.
     */
    FocusTrap.prototype.trapFocus = function () {
        var focusableEls = this.getFocusableElements(this.root);
        if (focusableEls.length === 0) {
            throw new Error('FocusTrap: Element must have at least one focusable child.');
        }
        this.elFocusedBeforeTrapFocus = document.activeElement instanceof HTMLElement ? document.activeElement : null;
        this.wrapTabFocus(this.root);
        if (!this.options.skipInitialFocus) {
            this.focusInitialElement(focusableEls, this.options.initialFocusEl);
        }
    };
    /**
     * Releases focus from `root`. Also restores focus to the previously focused
     * element.
     */
    FocusTrap.prototype.releaseFocus = function () {
        [].slice.call(this.root.querySelectorAll("." + FOCUS_SENTINEL_CLASS)).forEach(function (sentinelEl) {
            sentinelEl.parentElement.removeChild(sentinelEl);
        });
        if (!this.options.skipRestoreFocus && this.elFocusedBeforeTrapFocus) {
            this.elFocusedBeforeTrapFocus.focus();
        }
    };
    /**
     * Wraps tab focus within `el` by adding two hidden sentinel divs which are
     * used to mark the beginning and the end of the tabbable region. When
     * focused, these sentinel elements redirect focus to the first/last
     * children elements of the tabbable region, ensuring that focus is trapped
     * within that region.
     */
    FocusTrap.prototype.wrapTabFocus = function (el) {
        var _this = this;
        var sentinelStart = this.createSentinel();
        var sentinelEnd = this.createSentinel();
        sentinelStart.addEventListener('focus', function () {
            var focusableEls = _this.getFocusableElements(el);
            if (focusableEls.length > 0) {
                focusableEls[focusableEls.length - 1].focus();
            }
        });
        sentinelEnd.addEventListener('focus', function () {
            var focusableEls = _this.getFocusableElements(el);
            if (focusableEls.length > 0) {
                focusableEls[0].focus();
            }
        });
        el.insertBefore(sentinelStart, el.children[0]);
        el.appendChild(sentinelEnd);
    };
    /**
     * Focuses on `initialFocusEl` if defined and a child of the root element.
     * Otherwise, focuses on the first focusable child element of the root.
     */
    FocusTrap.prototype.focusInitialElement = function (focusableEls, initialFocusEl) {
        var focusIndex = 0;
        if (initialFocusEl) {
            focusIndex = Math.max(focusableEls.indexOf(initialFocusEl), 0);
        }
        focusableEls[focusIndex].focus();
    };
    FocusTrap.prototype.getFocusableElements = function (root) {
        var focusableEls = [].slice.call(root.querySelectorAll('[autofocus], [tabindex], a, input, textarea, select, button'));
        return focusableEls.filter(function (el) {
            var isDisabledOrHidden = el.getAttribute('aria-disabled') === 'true' || el.getAttribute('disabled') != null || el.getAttribute('hidden') != null || el.getAttribute('aria-hidden') === 'true';
            var isTabbableAndVisible = el.tabIndex >= 0 && el.getBoundingClientRect().width > 0 && !el.classList.contains(FOCUS_SENTINEL_CLASS) && !isDisabledOrHidden;
            var isProgrammaticallyHidden = false;
            if (isTabbableAndVisible) {
                var style = getComputedStyle(el);
                isProgrammaticallyHidden = style.display === 'none' || style.visibility === 'hidden';
            }
            return isTabbableAndVisible && !isProgrammaticallyHidden;
        });
    };
    FocusTrap.prototype.createSentinel = function () {
        var sentinel = document.createElement('div');
        sentinel.setAttribute('tabindex', '0');
        // Don't announce in screen readers.
        sentinel.setAttribute('aria-hidden', 'true');
        sentinel.classList.add(FOCUS_SENTINEL_CLASS);
        return sentinel;
    };
    return FocusTrap;
}();
exports.FocusTrap = FocusTrap;

/***/ }),

/***/ "./packages/mdc-dom/index.ts":
/*!***********************************!*\
  !*** ./packages/mdc-dom/index.ts ***!
  \***********************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

/**
 * @license
 * Copyright 2018 Google Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

var __createBinding = this && this.__createBinding || (Object.create ? function (o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    Object.defineProperty(o, k2, { enumerable: true, get: function get() {
            return m[k];
        } });
} : function (o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
});
var __setModuleDefault = this && this.__setModuleDefault || (Object.create ? function (o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
} : function (o, v) {
    o["default"] = v;
});
var __importStar = this && this.__importStar || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) {
        if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    }__setModuleDefault(result, mod);
    return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.ponyfill = exports.keyboard = exports.focusTrap = exports.events = void 0;
var events = __importStar(__webpack_require__(/*! ./events */ "./packages/mdc-dom/events.ts"));
exports.events = events;
var focusTrap = __importStar(__webpack_require__(/*! ./focus-trap */ "./packages/mdc-dom/focus-trap.ts"));
exports.focusTrap = focusTrap;
var keyboard = __importStar(__webpack_require__(/*! ./keyboard */ "./packages/mdc-dom/keyboard.ts"));
exports.keyboard = keyboard;
var ponyfill = __importStar(__webpack_require__(/*! ./ponyfill */ "./packages/mdc-dom/ponyfill.ts"));
exports.ponyfill = ponyfill;

/***/ }),

/***/ "./packages/mdc-dom/keyboard.ts":
/*!**************************************!*\
  !*** ./packages/mdc-dom/keyboard.ts ***!
  \**************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

/**
 * @license
 * Copyright 2020 Google Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

Object.defineProperty(exports, "__esModule", { value: true });
exports.isNavigationEvent = exports.normalizeKey = exports.KEY = void 0;
/**
 * KEY provides normalized string values for keys.
 */
exports.KEY = {
    UNKNOWN: 'Unknown',
    BACKSPACE: 'Backspace',
    ENTER: 'Enter',
    SPACEBAR: 'Spacebar',
    PAGE_UP: 'PageUp',
    PAGE_DOWN: 'PageDown',
    END: 'End',
    HOME: 'Home',
    ARROW_LEFT: 'ArrowLeft',
    ARROW_UP: 'ArrowUp',
    ARROW_RIGHT: 'ArrowRight',
    ARROW_DOWN: 'ArrowDown',
    DELETE: 'Delete',
    ESCAPE: 'Escape',
    TAB: 'Tab'
};
var normalizedKeys = new Set();
// IE11 has no support for new Map with iterable so we need to initialize this
// by hand.
normalizedKeys.add(exports.KEY.BACKSPACE);
normalizedKeys.add(exports.KEY.ENTER);
normalizedKeys.add(exports.KEY.SPACEBAR);
normalizedKeys.add(exports.KEY.PAGE_UP);
normalizedKeys.add(exports.KEY.PAGE_DOWN);
normalizedKeys.add(exports.KEY.END);
normalizedKeys.add(exports.KEY.HOME);
normalizedKeys.add(exports.KEY.ARROW_LEFT);
normalizedKeys.add(exports.KEY.ARROW_UP);
normalizedKeys.add(exports.KEY.ARROW_RIGHT);
normalizedKeys.add(exports.KEY.ARROW_DOWN);
normalizedKeys.add(exports.KEY.DELETE);
normalizedKeys.add(exports.KEY.ESCAPE);
normalizedKeys.add(exports.KEY.TAB);
var KEY_CODE = {
    BACKSPACE: 8,
    ENTER: 13,
    SPACEBAR: 32,
    PAGE_UP: 33,
    PAGE_DOWN: 34,
    END: 35,
    HOME: 36,
    ARROW_LEFT: 37,
    ARROW_UP: 38,
    ARROW_RIGHT: 39,
    ARROW_DOWN: 40,
    DELETE: 46,
    ESCAPE: 27,
    TAB: 9
};
var mappedKeyCodes = new Map();
// IE11 has no support for new Map with iterable so we need to initialize this
// by hand.
mappedKeyCodes.set(KEY_CODE.BACKSPACE, exports.KEY.BACKSPACE);
mappedKeyCodes.set(KEY_CODE.ENTER, exports.KEY.ENTER);
mappedKeyCodes.set(KEY_CODE.SPACEBAR, exports.KEY.SPACEBAR);
mappedKeyCodes.set(KEY_CODE.PAGE_UP, exports.KEY.PAGE_UP);
mappedKeyCodes.set(KEY_CODE.PAGE_DOWN, exports.KEY.PAGE_DOWN);
mappedKeyCodes.set(KEY_CODE.END, exports.KEY.END);
mappedKeyCodes.set(KEY_CODE.HOME, exports.KEY.HOME);
mappedKeyCodes.set(KEY_CODE.ARROW_LEFT, exports.KEY.ARROW_LEFT);
mappedKeyCodes.set(KEY_CODE.ARROW_UP, exports.KEY.ARROW_UP);
mappedKeyCodes.set(KEY_CODE.ARROW_RIGHT, exports.KEY.ARROW_RIGHT);
mappedKeyCodes.set(KEY_CODE.ARROW_DOWN, exports.KEY.ARROW_DOWN);
mappedKeyCodes.set(KEY_CODE.DELETE, exports.KEY.DELETE);
mappedKeyCodes.set(KEY_CODE.ESCAPE, exports.KEY.ESCAPE);
mappedKeyCodes.set(KEY_CODE.TAB, exports.KEY.TAB);
var navigationKeys = new Set();
// IE11 has no support for new Set with iterable so we need to initialize this
// by hand.
navigationKeys.add(exports.KEY.PAGE_UP);
navigationKeys.add(exports.KEY.PAGE_DOWN);
navigationKeys.add(exports.KEY.END);
navigationKeys.add(exports.KEY.HOME);
navigationKeys.add(exports.KEY.ARROW_LEFT);
navigationKeys.add(exports.KEY.ARROW_UP);
navigationKeys.add(exports.KEY.ARROW_RIGHT);
navigationKeys.add(exports.KEY.ARROW_DOWN);
/**
 * normalizeKey returns the normalized string for a navigational action.
 */
function normalizeKey(evt) {
    var key = evt.key;
    // If the event already has a normalized key, return it
    if (normalizedKeys.has(key)) {
        return key;
    }
    // tslint:disable-next-line:deprecation
    var mappedKey = mappedKeyCodes.get(evt.keyCode);
    if (mappedKey) {
        return mappedKey;
    }
    return exports.KEY.UNKNOWN;
}
exports.normalizeKey = normalizeKey;
/**
 * isNavigationEvent returns whether the event is a navigation event
 */
function isNavigationEvent(evt) {
    return navigationKeys.has(normalizeKey(evt));
}
exports.isNavigationEvent = isNavigationEvent;

/***/ }),

/***/ "./packages/mdc-dom/ponyfill.ts":
/*!**************************************!*\
  !*** ./packages/mdc-dom/ponyfill.ts ***!
  \**************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

/**
 * @license
 * Copyright 2018 Google Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

Object.defineProperty(exports, "__esModule", { value: true });
exports.estimateScrollWidth = exports.matches = exports.closest = void 0;
/**
 * @fileoverview A "ponyfill" is a polyfill that doesn't modify the global prototype chain.
 * This makes ponyfills safer than traditional polyfills, especially for libraries like MDC.
 */
function closest(element, selector) {
    if (element.closest) {
        return element.closest(selector);
    }
    var el = element;
    while (el) {
        if (matches(el, selector)) {
            return el;
        }
        el = el.parentElement;
    }
    return null;
}
exports.closest = closest;
function matches(element, selector) {
    var nativeMatches = element.matches || element.webkitMatchesSelector || element.msMatchesSelector;
    return nativeMatches.call(element, selector);
}
exports.matches = matches;
/**
 * Used to compute the estimated scroll width of elements. When an element is
 * hidden due to display: none; being applied to a parent element, the width is
 * returned as 0. However, the element will have a true width once no longer
 * inside a display: none context. This method computes an estimated width when
 * the element is hidden or returns the true width when the element is visble.
 * @param {Element} element the element whose width to estimate
 */
function estimateScrollWidth(element) {
    // Check the offsetParent. If the element inherits display: none from any
    // parent, the offsetParent property will be null (see
    // https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/offsetParent).
    // This check ensures we only clone the node when necessary.
    var htmlEl = element;
    if (htmlEl.offsetParent !== null) {
        return htmlEl.scrollWidth;
    }
    var clone = htmlEl.cloneNode(true);
    clone.style.setProperty('position', 'absolute');
    clone.style.setProperty('transform', 'translate(-9999px, -9999px)');
    document.documentElement.appendChild(clone);
    var scrollWidth = clone.scrollWidth;
    document.documentElement.removeChild(clone);
    return scrollWidth;
}
exports.estimateScrollWidth = estimateScrollWidth;

/***/ })

/******/ });
});
//# sourceMappingURL=mdc.dom.js.map