office-ui-fabric-react
Version:
Reusable React components for building experiences for Office 365.
1,259 lines (1,205 loc) • 1.48 MB
JavaScript
var Fabric =
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/* 0 */
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//# sourceMappingURL=index.js.map
/***/ },
/* 1 */
/***/ function(module, exports) {
module.exports = React;
/***/ },
/* 2 */
/***/ function(module, exports) {
module.exports = ReactDOM;
/***/ },
/* 3 */,
/* 4 */,
/* 5 */,
/* 6 */
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Copyright (c) Microsoft Corporation. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License"); you may not use
this file except in compliance with the License. You may obtain a copy of the
License at http://www.apache.org/licenses/LICENSE-2.0
THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
MERCHANTABLITY OR NON-INFRINGEMENT.
See the Apache Version 2.0 License for specific language governing permissions
and limitations under the License.
***************************************************************************** */
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//# sourceMappingURL=Utilities.js.map
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/**
* Bugs often appear in async code when stuff gets disposed, but async operations don't get canceled.
* This Async helper class solves these issues by tying async code to the lifetime of a disposable object.
*
* Usage: Anything class extending from BaseModel can access this helper via this.async. Otherwise create a
* new instance of the class and remember to call dispose() during your code's dispose handler.
*
* @public
*/
var Async = (function () {
function Async(parent, onError) {
this._timeoutIds = null;
this._immediateIds = null;
this._intervalIds = null;
this._animationFrameIds = null;
this._isDisposed = false;
this._parent = parent || null;
this._onErrorHandler = onError;
this._noop = function () { };
}
/**
* Dispose function, clears all async operations.
*/
Async.prototype.dispose = function () {
var id;
this._isDisposed = true;
this._parent = null;
// Clear timeouts.
if (this._timeoutIds) {
for (id in this._timeoutIds) {
if (this._timeoutIds.hasOwnProperty(id)) {
this.clearTimeout(parseInt(id, 10));
}
}
this._timeoutIds = null;
}
// Clear immediates.
if (this._immediateIds) {
for (id in this._immediateIds) {
if (this._immediateIds.hasOwnProperty(id)) {
this.clearImmediate(parseInt(id, 10));
}
}
this._immediateIds = null;
}
// Clear intervals.
if (this._intervalIds) {
for (id in this._intervalIds) {
if (this._intervalIds.hasOwnProperty(id)) {
this.clearInterval(parseInt(id, 10));
}
}
this._intervalIds = null;
}
// Clear animation frames.
if (this._animationFrameIds) {
for (id in this._animationFrameIds) {
if (this._animationFrameIds.hasOwnProperty(id)) {
this.cancelAnimationFrame(parseInt(id, 10));
}
}
this._animationFrameIds = null;
}
};
/**
* SetTimeout override, which will auto cancel the timeout during dispose.
* @param callback - Callback to execute.
* @param duration - Duration in milliseconds.
* @returns The setTimeout id.
*/
Async.prototype.setTimeout = function (callback, duration) {
var _this = this;
var timeoutId = 0;
if (!this._isDisposed) {
if (!this._timeoutIds) {
this._timeoutIds = {};
}
/* tslint:disable:ban-native-functions */
timeoutId = setTimeout(function () {
// Time to execute the timeout, enqueue it as a foreground task to be executed.
try {
// Now delete the record and call the callback.
delete _this._timeoutIds[timeoutId];
callback.apply(_this._parent);
}
catch (e) {
if (_this._onErrorHandler) {
_this._onErrorHandler(e);
}
}
}, duration);
/* tslint:enable:ban-native-functions */
this._timeoutIds[timeoutId] = true;
}
return timeoutId;
};
/**
* Clears the timeout.
* @param id - Id to cancel.
*/
Async.prototype.clearTimeout = function (id) {
if (this._timeoutIds && this._timeoutIds[id]) {
/* tslint:disable:ban-native-functions */
clearTimeout(id);
delete this._timeoutIds[id];
/* tslint:enable:ban-native-functions */
}
};
/**
* SetImmediate override, which will auto cancel the immediate during dispose.
* @param callback - Callback to execute.
* @returns The setTimeout id.
*/
Async.prototype.setImmediate = function (callback) {
var _this = this;
var immediateId = 0;
if (!this._isDisposed) {
if (!this._immediateIds) {
this._immediateIds = {};
}
/* tslint:disable:ban-native-functions */
var setImmediateCallback = function () {
// Time to execute the timeout, enqueue it as a foreground task to be executed.
try {
// Now delete the record and call the callback.
delete _this._immediateIds[immediateId];
callback.apply(_this._parent);
}
catch (e) {
_this._logError(e);
}
};
immediateId = window.setImmediate ? window.setImmediate(setImmediateCallback) : window.setTimeout(setImmediateCallback, 0);
/* tslint:enable:ban-native-functions */
this._immediateIds[immediateId] = true;
}
return immediateId;
};
/**
* Clears the immediate.
* @param id - Id to cancel.
*/
Async.prototype.clearImmediate = function (id) {
if (this._immediateIds && this._immediateIds[id]) {
/* tslint:disable:ban-native-functions */
window.clearImmediate ? window.clearImmediate(id) : window.clearTimeout(id);
delete this._immediateIds[id];
/* tslint:enable:ban-native-functions */
}
};
/**
* SetInterval override, which will auto cancel the timeout during dispose.
* @param callback - Callback to execute.
* @param duration - Duration in milliseconds.
* @returns The setTimeout id.
*/
Async.prototype.setInterval = function (callback, duration) {
var _this = this;
var intervalId = 0;
if (!this._isDisposed) {
if (!this._intervalIds) {
this._intervalIds = {};
}
/* tslint:disable:ban-native-functions */
intervalId = setInterval(function () {
// Time to execute the interval callback, enqueue it as a foreground task to be executed.
try {
callback.apply(_this._parent);
}
catch (e) {
_this._logError(e);
}
}, duration);
/* tslint:enable:ban-native-functions */
this._intervalIds[intervalId] = true;
}
return intervalId;
};
/**
* Clears the interval.
* @param id - Id to cancel.
*/
Async.prototype.clearInterval = function (id) {
if (this._intervalIds && this._intervalIds[id]) {
/* tslint:disable:ban-native-functions */
clearInterval(id);
delete this._intervalIds[id];
/* tslint:enable:ban-native-functions */
}
};
/**
* Creates a function that, when executed, will only call the func function at most once per
* every wait milliseconds. Provide an options object to indicate that func should be invoked
* on the leading and/or trailing edge of the wait timeout. Subsequent calls to the throttled
* function will return the result of the last func call.
*
* Note: If leading and trailing options are true func will be called on the trailing edge of
* the timeout only if the the throttled function is invoked more than once during the wait timeout.
*
* @param func - The function to throttle.
* @param wait - The number of milliseconds to throttle executions to. Defaults to 0.
* @param options - The options object.
* @returns The new throttled function.
*/
Async.prototype.throttle = function (func, wait, options) {
var _this = this;
if (this._isDisposed) {
return this._noop;
}
var waitMS = wait || 0;
var leading = true;
var trailing = true;
var lastExecuteTime = 0;
var lastResult;
var lastArgs;
var timeoutId = null;
if (options && typeof (options.leading) === 'boolean') {
leading = options.leading;
}
if (options && typeof (options.trailing) === 'boolean') {
trailing = options.trailing;
}
var callback = function (userCall) {
var now = (new Date).getTime();
var delta = now - lastExecuteTime;
var waitLength = leading ? waitMS - delta : waitMS;
if (delta >= waitMS && (!userCall || leading)) {
lastExecuteTime = now;
if (timeoutId) {
_this.clearTimeout(timeoutId);
timeoutId = null;
}
lastResult = func.apply(_this._parent, lastArgs);
}
else if (timeoutId === null && trailing) {
timeoutId = _this.setTimeout(callback, waitLength);
}
return lastResult;
};
var resultFunction = function () {
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i] = arguments[_i];
}
lastArgs = args;
return callback(true);
};
return resultFunction;
};
/**
* Creates a function that will delay the execution of func until after wait milliseconds have
* elapsed since the last time it was invoked. Provide an options object to indicate that func
* should be invoked on the leading and/or trailing edge of the wait timeout. Subsequent calls
* to the debounced function will return the result of the last func call.
*
* Note: If leading and trailing options are true func will be called on the trailing edge of
* the timeout only if the the debounced function is invoked more than once during the wait
* timeout.
*
* @param func - The function to debounce.
* @param wait - The number of milliseconds to delay.
* @param options - The options object.
* @returns The new debounced function.
*/
Async.prototype.debounce = function (func, wait, options) {
var _this = this;
if (this._isDisposed) {
return this._noop;
}
var waitMS = wait || 0;
var leading = false;
var trailing = true;
var maxWait = null;
var lastCallTime = 0;
var lastExecuteTime = (new Date).getTime();
var lastResult;
var lastArgs;
var timeoutId = null;
if (options && typeof (options.leading) === 'boolean') {
leading = options.leading;
}
if (options && typeof (options.trailing) === 'boolean') {
trailing = options.trailing;
}
if (options && typeof (options.maxWait) === 'number' && !isNaN(options.maxWait)) {
maxWait = options.maxWait;
}
var callback = function (userCall) {
var now = (new Date).getTime();
var executeImmediately = false;
if (userCall) {
if (leading && now - lastCallTime >= waitMS) {
executeImmediately = true;
}
lastCallTime = now;
}
var delta = now - lastCallTime;
var waitLength = waitMS - delta;
var maxWaitDelta = now - lastExecuteTime;
var maxWaitExpired = false;
if (maxWait !== null) {
// maxWait only matters when there is a pending callback
if (maxWaitDelta >= maxWait && timeoutId) {
maxWaitExpired = true;
}
else {
waitLength = Math.min(waitLength, maxWait - maxWaitDelta);
}
}
if (delta >= waitMS || maxWaitExpired || executeImmediately) {
if (timeoutId) {
_this.clearTimeout(timeoutId);
timeoutId = null;
}
lastExecuteTime = now;
lastResult = func.apply(_this._parent, lastArgs);
}
else if ((timeoutId === null || !userCall) && trailing) {
timeoutId = _this.setTimeout(callback, waitLength);
}
return lastResult;
};
var resultFunction = function () {
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i] = arguments[_i];
}
lastArgs = args;
return callback(true);
};
return resultFunction;
};
Async.prototype.requestAnimationFrame = function (callback) {
var _this = this;
var animationFrameId = 0;
if (!this._isDisposed) {
if (!this._animationFrameIds) {
this._animationFrameIds = {};
}
/* tslint:disable:ban-native-functions */
var animationFrameCallback = function () {
try {
// Now delete the record and call the callback.
if (_this._animationFrameIds) {
delete _this._animationFrameIds[animationFrameId];
}
callback.apply(_this._parent);
}
catch (e) {
_this._logError(e);
}
};
animationFrameId = window.requestAnimationFrame ?
window.requestAnimationFrame(animationFrameCallback) :
window.setTimeout(animationFrameCallback, 0);
/* tslint:enable:ban-native-functions */
this._animationFrameIds[animationFrameId] = true;
}
return animationFrameId;
};
Async.prototype.cancelAnimationFrame = function (id) {
if (this._animationFrameIds && this._animationFrameIds[id]) {
/* tslint:disable:ban-native-functions */
window.cancelAnimationFrame ? window.cancelAnimationFrame(id) : window.clearTimeout(id);
/* tslint:enable:ban-native-functions */
delete this._animationFrameIds[id];
}
};
Async.prototype._logError = function (e) {
if (this._onErrorHandler) {
this._onErrorHandler(e);
}
};
return Async;
}());
exports.Async = Async;
//# sourceMappingURL=Async.js.map
/***/ },
/* 11 */
/***/ function(module, exports, __webpack_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var EventGroup_1 = __webpack_require__(12);
var scroll_1 = __webpack_require__(13);
var dom_1 = __webpack_require__(14);
var SCROLL_ITERATION_DELAY = 16;
var SCROLL_GUTTER_HEIGHT = 100;
var MAX_SCROLL_VELOCITY = 15;
/**
* AutoScroll simply hooks up mouse events given a parent element, and scrolls the container
* up/down depending on how close the mouse is to the top/bottom of the container.
*
* Once you don't want autoscroll any more, just dispose the helper and it will unhook events.
*
* @public
*/
var AutoScroll = (function () {
function AutoScroll(element) {
this._events = new EventGroup_1.EventGroup(this);
this._scrollableParent = scroll_1.findScrollableParent(element);
this._incrementScroll = this._incrementScroll.bind(this);
this._scrollRect = dom_1.getRect(this._scrollableParent);
if (this._scrollableParent === window) {
this._scrollableParent = document.body;
}
if (this._scrollableParent) {
this._events.on(window, 'mousemove', this._onMouseMove, true);
this._events.on(window, 'touchmove', this._onTouchMove, true);
}
}
AutoScroll.prototype.dispose = function () {
this._events.dispose();
this._stopScroll();
};
AutoScroll.prototype._onMouseMove = function (ev) {
this._computeScrollVelocity(ev.clientY);
};
AutoScroll.prototype._onTouchMove = function (ev) {
if (ev.touches.length > 0) {
this._computeScrollVelocity(ev.touches[0].clientY);
}
};
AutoScroll.prototype._computeScrollVelocity = function (clientY) {
if (!this._scrollRect) {
return;
}
var scrollRectTop = this._scrollRect.top;
var scrollClientBottom = scrollRectTop + this._scrollRect.height - SCROLL_GUTTER_HEIGHT;
if (clientY < (scrollRectTop + SCROLL_GUTTER_HEIGHT)) {
this._scrollVelocity = Math.max(-MAX_SCROLL_VELOCITY, -MAX_SCROLL_VELOCITY * ((SCROLL_GUTTER_HEIGHT - (clientY - scrollRectTop)) / SCROLL_GUTTER_HEIGHT));
}
else if (clientY > scrollClientBottom) {
this._scrollVelocity = Math.min(MAX_SCROLL_VELOCITY, MAX_SCROLL_VELOCITY * ((clientY - scrollClientBottom) / SCROLL_GUTTER_HEIGHT));
}
else {
this._scrollVelocity = 0;
}
if (this._scrollVelocity) {
this._startScroll();
}
else {
this._stopScroll();
}
};
AutoScroll.prototype._startScroll = function () {
if (!this._timeoutId) {
this._incrementScroll();
}
};
AutoScroll.prototype._incrementScroll = function () {
if (this._scrollableParent) {
this._scrollableParent.scrollTop += Math.round(this._scrollVelocity);
}
this._timeoutId = setTimeout(this._incrementScroll, SCROLL_ITERATION_DELAY);
};
AutoScroll.prototype._stopScroll = function () {
if (this._timeoutId) {
clearTimeout(this._timeoutId);
delete this._timeoutId;
}
};
return AutoScroll;
}());
exports.AutoScroll = AutoScroll;
//# sourceMappingURL=AutoScroll.js.map
/***/ },
/* 12 */
/***/ function(module, exports) {
/* tslint:disable:no-string-literal */
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
/** An instance of EventGroup allows anything with a handle to it to trigger events on it.
* If the target is an HTMLElement, the event will be attached to the element and can be
* triggered as usual (like clicking for onclick).
* The event can be triggered by calling EventGroup.raise() here. If the target is an
* HTMLElement, the event gets raised and is handled by the browser. Otherwise, it gets
* handled here in EventGroup, and the handler is called in the context of the parent
* (which is passed in in the constructor).
*
* @public
*/
var EventGroup = (function () {
/** parent: the context in which events attached to non-HTMLElements are called */
function EventGroup(parent) {
this._id = EventGroup._uniqueId++;
this._parent = parent;
this._eventRecords = [];
}
/** For IE8, bubbleEvent is ignored here and must be dealt with by the handler.
* Events raised here by default have bubbling set to false and cancelable set to true.
* This applies also to built-in events being raised manually here on HTMLElements,
* which may lead to unexpected behavior if it differs from the defaults.
*
*/
EventGroup.raise = function (target, eventName, eventArgs, bubbleEvent) {
var retVal;
if (EventGroup._isElement(target)) {
if (document.createEvent) {
var ev = document.createEvent('HTMLEvents');
ev.initEvent(eventName, bubbleEvent || false, true);
ev['args'] = eventArgs;
retVal = target.dispatchEvent(ev);
}
else if (document['createEventObject']) {
var evObj = document['createEventObject'](eventArgs);
// cannot set cancelBubble on evObj, fireEvent will overwrite it
target.fireEvent('on' + eventName, evObj);
}
}
else {
while (target && retVal !== false) {
var events = target.__events__;
var eventRecords = events ? events[eventName] : null;
if (eventRecords) {
for (var id in eventRecords) {
if (eventRecords.hasOwnProperty(id)) {
var eventRecordList = eventRecords[id];
for (var listIndex = 0; retVal !== false && listIndex < eventRecordList.length; listIndex++) {
var record = eventRecordList[listIndex];
if (record.objectCallback) {
retVal = record.objectCallback.call(record.parent, eventArgs);
}
}
}
}
}
// If the target has a parent, bubble the event up.
target = bubbleEvent ? target.parent : null;
}
}
return retVal;
};
EventGroup.isObserved = function (target, eventName) {
var events = target && target.__events__;
return !!events && !!events[eventName];
};
/** Check to see if the target has declared support of the given event. */
EventGroup.isDeclared = function (target, eventName) {
var declaredEvents = target && target.__declaredEvents;
return !!declaredEvents && !!declaredEvents[eventName];
};
EventGroup.stopPropagation = function (event) {
if (event.stopPropagation) {
event.stopPropagation();
}
else {
event.cancelBubble = true;
}
};
EventGroup._isElement = function (target) {
return !!target && (target.addEventListener || target instanceof HTMLElement);
};
EventGroup.prototype.dispose = function () {
if (!this._isDisposed) {
this._isDisposed = true;
this.off();
this._parent = null;
}
};
/** On the target, attach a set of events, where the events object is a name to function mapping. */
EventGroup.prototype.onAll = function (target, events, useCapture) {
for (var eventName in events) {
if (events.hasOwnProperty(eventName)) {
this.on(target, eventName, events[eventName], useCapture);
}
}
};
/** On the target, attach an event whose handler will be called in the context of the parent
* of this instance of EventGroup.
*/
EventGroup.prototype.on = function (target, eventName, callback, useCapture) {
var _this = this;
if (eventName.indexOf(',') > -1) {
var events = eventName.split(/[ ,]+/);
for (var i = 0; i < events.length; i++) {
this.on(target, events[i], callback, useCapture);
}
}
else {
var parent_1 = this._parent;
var eventRecord = {
target: target,
eventName: eventName,
parent: parent_1,
callback: callback,
useCapture: useCapture || false
};
// Initialize and wire up the record on the target, so that it can call the callback if the event fires.
var events = (target.__events__ = target.__events__ || {});
events[eventName] = events[eventName] || {
count: 0
};
events[eventName][this._id] = events[eventName][this._id] || [];
events[eventName][this._id].push(eventRecord);
events[eventName].count++;
if (EventGroup._isElement(target)) {
var processElementEvent = function () {
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i] = arguments[_i];
}
if (_this._isDisposed) {
return;
}
var result;
try {
result = callback.apply(parent_1, args);
if (result === false && args[0]) {
var e = args[0];
if (e.preventDefault) {
e.preventDefault();
}
if (e.stopPropagation) {
e.stopPropagation();
}
e.cancelBubble = true;
}
}
catch (e) {
/* ErrorHelper.log(e); */
}
return result;
};
eventRecord.elementCallback = processElementEvent;
if (target.addEventListener) {
/* tslint:disable:ban-native-functions */
target.addEventListener(eventName, processElementEvent, useCapture);
/* tslint:enable:ban-native-functions */
}
else if (target.attachEvent) {
target.attachEvent('on' + eventName, processElementEvent);
}
}
else {
var processObjectEvent = function () {
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i] = arguments[_i];
}
if (_this._isDisposed) {
return;
}
return callback.apply(parent_1, args);
};
eventRecord.objectCallback = processObjectEvent;
}
// Remember the record locally, so that it can be removed.
this._eventRecords.push(eventRecord);
}
};
EventGroup.prototype.off = function (target, eventName, callback, useCapture) {
for (var i = 0; i < this._eventRecords.length; i++) {
var eventRecord = this._eventRecords[i];
if ((!target || target === eventRecord.target) &&
(!eventName || eventName === eventRecord.eventName) &&
(!callback || callback === eventRecord.callback) &&
((typeof useCapture !== 'boolean') || useCapture === eventRecord.useCapture)) {
var events = eventRecord.target.__events__;
var targetArrayLookup = events[eventRecord.eventName];
var targetArray = targetArrayLookup ? targetArrayLookup[this._id] : null;
// We may have already target's entries, so check for null.
if (targetArray) {
if (targetArray.length === 1 || !callback) {
targetArrayLookup.count -= targetArray.length;
delete events[eventRecord.eventName][this._id];
}
else {
targetArrayLookup.count--;
targetArray.splice(targetArray.indexOf(eventRecord), 1);
}
if (!targetArrayLookup.count) {
delete events[eventRecord.eventName];
}
}
if (eventRecord.elementCallback) {
if (eventRecord.target.removeEventListener) {
eventRecord.target.removeEventListener(eventRecord.eventName, eventRecord.elementCallback, eventRecord.useCapture);
}
else if (eventRecord.target.detachEvent) {
eventRecord.target.detachEvent('on' + eventRecord.eventName, eventRecord.elementCallback);
}
}
this._eventRecords.splice(i--, 1);
}
}
};
/** Trigger the given event in the context of this instance of EventGroup. */
EventGroup.prototype.raise = function (eventName, eventArgs, bubbleEvent) {
return EventGroup.raise(this._parent, eventName, eventArgs, bubbleEvent);
};
/** Declare an event as being supported by this instance of EventGroup. */
EventGroup.prototype.declare = function (event) {
var declaredEvents = this._parent.__declaredEvents = this._parent.__declaredEvents || {};
if (typeof event === 'string') {
declaredEvents[event] = true;
}
else {
for (var i = 0; i < event.length; i++) {
declaredEvents[event[i]] = true;
}
}
};
return EventGroup;
}());
EventGroup._uniqueId = 0;
exports.EventGroup = EventGroup;
//# sourceMappingURL=EventGroup.js.map
/***/ },
/* 13 */
/***/ function(module, exports, __webpack_require__) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var dom_1 = __webpack_require__(14);
var scroll_scss_1 = __webpack_require__(15);
var _scrollbarWidth;
var _bodyScrollDisabledCount = 0;
/**
* Placing this attribute on scrollable divs optimizes detection to know
* if the div is scrollable or not (given we can avoid expensive operations
* like getComputedStyle.)
*
* @public
*/
exports.DATA_IS_SCROLLABLE_ATTRIBUTE = 'data-is-scrollable';
/**
* Disables the body scrolling.
*
* @public
*/
function disableBodyScroll() {
var doc = dom_1.getDocument();
if (doc && doc.body && !_bodyScrollDisabledCount) {
doc.body.classList.add(scroll_scss_1.default.msFabricScrollDisabled);
}
_bodyScrollDisabledCount++;
}
exports.disableBodyScroll = disableBodyScroll;
/**
* Enables the body scrolling.
*
* @public
*/
function enableBodyScroll() {
if (_bodyScrollDisabledCount > 0) {
var doc = dom_1.getDocument();
if (doc && doc.body && _bodyScrollDisabledCount === 1) {
doc.body.classList.remove(scroll_scss_1.default.msFabricScrollDisabled);
}
_bodyScrollDisabledCount--;
}
}
exports.enableBodyScroll = enableBodyScroll;
/**
* Calculates the width of a scrollbar for the browser/os.
*
* @public
*/
function getScrollbarWidth() {
if (_scrollbarWidth === undefined) {
var scrollDiv = document.createElement('div');
scrollDiv.style.setProperty('width', '100px');
scrollDiv.style.setProperty('height', '100px');
scrollDiv.style.setProperty('overflow', 'scroll');
scrollDiv.style.setProperty('position', 'absolute');
scrollDiv.style.setProperty('top', '-9999px');
document.body.appendChild(scrollDiv);
// Get the scrollbar width
_scrollbarWidth = scrollDiv.offsetWidth - scrollDiv.clientWidth;
// Delete the DIV
document.body.removeChild(scrollDiv);
}
return _scrollbarWidth;
}
exports.getScrollbarWidth = getScrollbarWidth;
/**
* Traverses up the DOM for the element with the data-is-scrollable=true attribute, or returns
* document.body.
*
* @public
*/
function findScrollableParent(startingElement) {
var el = startingElement;
// First do a quick scan for the scrollable attribute.
while (el && el !== document.body) {
if (el.getAttribute(exports.DATA_IS_SCROLLABLE_ATTRIBUTE) === 'true') {
return el;
}
el = el.parentElement;
}
// If we haven't found it, the use the slower method: compute styles to evaluate if overflow is set.
el = startingElement;
while (el && el !== document.body) {
if (el.getAttribute(exports.DATA_IS_SCROLLABLE_ATTRIBUTE) !== 'false') {
var styles_1 = getComputedStyle(el);
var overflowY = styles_1 ? styles_1.getPropertyValue('overflow-y') : '';
if (overflowY && (overflowY === 'scroll' || overflowY === 'auto')) {
return el;
}
}
el = el.parentElement;
}
// Fall back to window scroll.
if (!el || el === document.body) {
el = window;
}
return el;
}
exports.findScrollableParent = findScrollableParent;
//# sourceMappingURL=scroll.js.map
/***/ },
/* 14 */
/***/ function(module, exports) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
/**
* Sets the virtual parent of an element.
* Pass `undefined` as the `parent` to clear the virtual parent.
*
* @public
*/
function setVirtualParent(child, parent) {
var virtualChild = child;
var virtualParent = parent;
if (!virtualChild._virtual) {
virtualChild._virtual = {
children: []
};
}
var oldParent = virtualChild._virtual.parent;
if (oldParent && oldParent !== parent) {
// Remove the child from its old parent.
var index = oldParent._virtual.children.indexOf(virtualChild);
if (index > -1) {
oldParent._virtual.children.splice(index, 1);
}
}
virtualChild._virtual.parent = virtualParent || undefined;
if