@material/dom
Version:
DOM manipulation utilities for Material Components for the web
618 lines (592 loc) • 24.9 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://github.com/material-components/material-components-web/blob/master/LICENSE
*/
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exports["dom"] = factory();
else
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/***/ "./packages/mdc-dom/events.ts":
/*!************************************!*\
!*** ./packages/mdc-dom/events.ts ***!
\************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {
;
/**
* @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__) {
;
/**
* @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__) {
;
/**
* @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.
*/
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Object.defineProperty(o, "default", { enumerable: true, value: v });
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o["default"] = v;
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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__) {
;
/**
* @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__) {
;
/**
* @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