@21epub/epub-thirdparty
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epub-thirdparty
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JavaScript
/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import * as browser from './browser.js';
import { BrowserFeatures } from './canIUse.js';
import { StandardKeyboardEvent } from './keyboardEvent.js';
import { StandardMouseEvent } from './mouseEvent.js';
import { TimeoutTimer } from '../common/async.js';
import { onUnexpectedError } from '../common/errors.js';
import { Emitter } from '../common/event.js';
import { Disposable, DisposableStore, toDisposable } from '../common/lifecycle.js';
import { FileAccess, RemoteAuthorities } from '../common/network.js';
import * as platform from '../common/platform.js';
export function clearNode(node) {
while (node.firstChild) {
node.firstChild.remove();
}
}
/**
* @deprecated Use node.isConnected directly
*/
export function isInDOM(node) {
var _a;
return (_a = node === null || node === void 0 ? void 0 : node.isConnected) !== null && _a !== void 0 ? _a : false;
}
class DomListener {
constructor(node, type, handler, options) {
this._node = node;
this._type = type;
this._handler = handler;
this._options = (options || false);
this._node.addEventListener(this._type, this._handler, this._options);
}
dispose() {
if (!this._handler) {
// Already disposed
return;
}
this._node.removeEventListener(this._type, this._handler, this._options);
// Prevent leakers from holding on to the dom or handler func
this._node = null;
this._handler = null;
}
}
export function addDisposableListener(node, type, handler, useCaptureOrOptions) {
return new DomListener(node, type, handler, useCaptureOrOptions);
}
function _wrapAsStandardMouseEvent(handler) {
return function (e) {
return handler(new StandardMouseEvent(e));
};
}
function _wrapAsStandardKeyboardEvent(handler) {
return function (e) {
return handler(new StandardKeyboardEvent(e));
};
}
export let addStandardDisposableListener = function addStandardDisposableListener(node, type, handler, useCapture) {
let wrapHandler = handler;
if (type === 'click' || type === 'mousedown') {
wrapHandler = _wrapAsStandardMouseEvent(handler);
}
else if (type === 'keydown' || type === 'keypress' || type === 'keyup') {
wrapHandler = _wrapAsStandardKeyboardEvent(handler);
}
return addDisposableListener(node, type, wrapHandler, useCapture);
};
export let addStandardDisposableGenericMouseDownListner = function addStandardDisposableListener(node, handler, useCapture) {
let wrapHandler = _wrapAsStandardMouseEvent(handler);
return addDisposableGenericMouseDownListner(node, wrapHandler, useCapture);
};
export function addDisposableGenericMouseDownListner(node, handler, useCapture) {
return addDisposableListener(node, platform.isIOS && BrowserFeatures.pointerEvents ? EventType.POINTER_DOWN : EventType.MOUSE_DOWN, handler, useCapture);
}
export function addDisposableGenericMouseUpListner(node, handler, useCapture) {
return addDisposableListener(node, platform.isIOS && BrowserFeatures.pointerEvents ? EventType.POINTER_UP : EventType.MOUSE_UP, handler, useCapture);
}
export function addDisposableNonBubblingMouseOutListener(node, handler) {
return addDisposableListener(node, 'mouseout', (e) => {
// Mouse out bubbles, so this is an attempt to ignore faux mouse outs coming from children elements
let toElement = (e.relatedTarget);
while (toElement && toElement !== node) {
toElement = toElement.parentNode;
}
if (toElement === node) {
return;
}
handler(e);
});
}
export function addDisposableNonBubblingPointerOutListener(node, handler) {
return addDisposableListener(node, 'pointerout', (e) => {
// Mouse out bubbles, so this is an attempt to ignore faux mouse outs coming from children elements
let toElement = (e.relatedTarget);
while (toElement && toElement !== node) {
toElement = toElement.parentNode;
}
if (toElement === node) {
return;
}
handler(e);
});
}
let _animationFrame = null;
function doRequestAnimationFrame(callback) {
if (!_animationFrame) {
const emulatedRequestAnimationFrame = (callback) => {
return setTimeout(() => callback(new Date().getTime()), 0);
};
_animationFrame = (self.requestAnimationFrame
|| self.msRequestAnimationFrame
|| self.webkitRequestAnimationFrame
|| self.mozRequestAnimationFrame
|| self.oRequestAnimationFrame
|| emulatedRequestAnimationFrame);
}
return _animationFrame.call(self, callback);
}
/**
* Schedule a callback to be run at the next animation frame.
* This allows multiple parties to register callbacks that should run at the next animation frame.
* If currently in an animation frame, `runner` will be executed immediately.
* @return token that can be used to cancel the scheduled runner (only if `runner` was not executed immediately).
*/
export let runAtThisOrScheduleAtNextAnimationFrame;
/**
* Schedule a callback to be run at the next animation frame.
* This allows multiple parties to register callbacks that should run at the next animation frame.
* If currently in an animation frame, `runner` will be executed at the next animation frame.
* @return token that can be used to cancel the scheduled runner.
*/
export let scheduleAtNextAnimationFrame;
class AnimationFrameQueueItem {
constructor(runner, priority = 0) {
this._runner = runner;
this.priority = priority;
this._canceled = false;
}
dispose() {
this._canceled = true;
}
execute() {
if (this._canceled) {
return;
}
try {
this._runner();
}
catch (e) {
onUnexpectedError(e);
}
}
// Sort by priority (largest to lowest)
static sort(a, b) {
return b.priority - a.priority;
}
}
(function () {
/**
* The runners scheduled at the next animation frame
*/
let NEXT_QUEUE = [];
/**
* The runners scheduled at the current animation frame
*/
let CURRENT_QUEUE = null;
/**
* A flag to keep track if the native requestAnimationFrame was already called
*/
let animFrameRequested = false;
/**
* A flag to indicate if currently handling a native requestAnimationFrame callback
*/
let inAnimationFrameRunner = false;
let animationFrameRunner = () => {
animFrameRequested = false;
CURRENT_QUEUE = NEXT_QUEUE;
NEXT_QUEUE = [];
inAnimationFrameRunner = true;
while (CURRENT_QUEUE.length > 0) {
CURRENT_QUEUE.sort(AnimationFrameQueueItem.sort);
let top = CURRENT_QUEUE.shift();
top.execute();
}
inAnimationFrameRunner = false;
};
scheduleAtNextAnimationFrame = (runner, priority = 0) => {
let item = new AnimationFrameQueueItem(runner, priority);
NEXT_QUEUE.push(item);
if (!animFrameRequested) {
animFrameRequested = true;
doRequestAnimationFrame(animationFrameRunner);
}
return item;
};
runAtThisOrScheduleAtNextAnimationFrame = (runner, priority) => {
if (inAnimationFrameRunner) {
let item = new AnimationFrameQueueItem(runner, priority);
CURRENT_QUEUE.push(item);
return item;
}
else {
return scheduleAtNextAnimationFrame(runner, priority);
}
};
})();
const MINIMUM_TIME_MS = 8;
const DEFAULT_EVENT_MERGER = function (lastEvent, currentEvent) {
return currentEvent;
};
class TimeoutThrottledDomListener extends Disposable {
constructor(node, type, handler, eventMerger = DEFAULT_EVENT_MERGER, minimumTimeMs = MINIMUM_TIME_MS) {
super();
let lastEvent = null;
let lastHandlerTime = 0;
let timeout = this._register(new TimeoutTimer());
let invokeHandler = () => {
lastHandlerTime = (new Date()).getTime();
handler(lastEvent);
lastEvent = null;
};
this._register(addDisposableListener(node, type, (e) => {
lastEvent = eventMerger(lastEvent, e);
let elapsedTime = (new Date()).getTime() - lastHandlerTime;
if (elapsedTime >= minimumTimeMs) {
timeout.cancel();
invokeHandler();
}
else {
timeout.setIfNotSet(invokeHandler, minimumTimeMs - elapsedTime);
}
}));
}
}
export function addDisposableThrottledListener(node, type, handler, eventMerger, minimumTimeMs) {
return new TimeoutThrottledDomListener(node, type, handler, eventMerger, minimumTimeMs);
}
export function getComputedStyle(el) {
return document.defaultView.getComputedStyle(el, null);
}
export function getClientArea(element) {
// Try with DOM clientWidth / clientHeight
if (element !== document.body) {
return new Dimension(element.clientWidth, element.clientHeight);
}
// If visual view port exits and it's on mobile, it should be used instead of window innerWidth / innerHeight, or document.body.clientWidth / document.body.clientHeight
if (platform.isIOS && window.visualViewport) {
return new Dimension(window.visualViewport.width, window.visualViewport.height);
}
// Try innerWidth / innerHeight
if (window.innerWidth && window.innerHeight) {
return new Dimension(window.innerWidth, window.innerHeight);
}
// Try with document.body.clientWidth / document.body.clientHeight
if (document.body && document.body.clientWidth && document.body.clientHeight) {
return new Dimension(document.body.clientWidth, document.body.clientHeight);
}
// Try with document.documentElement.clientWidth / document.documentElement.clientHeight
if (document.documentElement && document.documentElement.clientWidth && document.documentElement.clientHeight) {
return new Dimension(document.documentElement.clientWidth, document.documentElement.clientHeight);
}
throw new Error('Unable to figure out browser width and height');
}
class SizeUtils {
// Adapted from WinJS
// Converts a CSS positioning string for the specified element to pixels.
static convertToPixels(element, value) {
return parseFloat(value) || 0;
}
static getDimension(element, cssPropertyName, jsPropertyName) {
let computedStyle = getComputedStyle(element);
let value = '0';
if (computedStyle) {
if (computedStyle.getPropertyValue) {
value = computedStyle.getPropertyValue(cssPropertyName);
}
else {
// IE8
value = computedStyle.getAttribute(jsPropertyName);
}
}
return SizeUtils.convertToPixels(element, value);
}
static getBorderLeftWidth(element) {
return SizeUtils.getDimension(element, 'border-left-width', 'borderLeftWidth');
}
static getBorderRightWidth(element) {
return SizeUtils.getDimension(element, 'border-right-width', 'borderRightWidth');
}
static getBorderTopWidth(element) {
return SizeUtils.getDimension(element, 'border-top-width', 'borderTopWidth');
}
static getBorderBottomWidth(element) {
return SizeUtils.getDimension(element, 'border-bottom-width', 'borderBottomWidth');
}
static getPaddingLeft(element) {
return SizeUtils.getDimension(element, 'padding-left', 'paddingLeft');
}
static getPaddingRight(element) {
return SizeUtils.getDimension(element, 'padding-right', 'paddingRight');
}
static getPaddingTop(element) {
return SizeUtils.getDimension(element, 'padding-top', 'paddingTop');
}
static getPaddingBottom(element) {
return SizeUtils.getDimension(element, 'padding-bottom', 'paddingBottom');
}
static getMarginLeft(element) {
return SizeUtils.getDimension(element, 'margin-left', 'marginLeft');
}
static getMarginTop(element) {
return SizeUtils.getDimension(element, 'margin-top', 'marginTop');
}
static getMarginRight(element) {
return SizeUtils.getDimension(element, 'margin-right', 'marginRight');
}
static getMarginBottom(element) {
return SizeUtils.getDimension(element, 'margin-bottom', 'marginBottom');
}
}
export class Dimension {
constructor(width, height) {
this.width = width;
this.height = height;
}
with(width = this.width, height = this.height) {
if (width !== this.width || height !== this.height) {
return new Dimension(width, height);
}
else {
return this;
}
}
static is(obj) {
return typeof obj === 'object' && typeof obj.height === 'number' && typeof obj.width === 'number';
}
static lift(obj) {
if (obj instanceof Dimension) {
return obj;
}
else {
return new Dimension(obj.width, obj.height);
}
}
static equals(a, b) {
if (a === b) {
return true;
}
if (!a || !b) {
return false;
}
return a.width === b.width && a.height === b.height;
}
}
export function getTopLeftOffset(element) {
// Adapted from WinJS.Utilities.getPosition
// and added borders to the mix
let offsetParent = element.offsetParent;
let top = element.offsetTop;
let left = element.offsetLeft;
while ((element = element.parentNode) !== null
&& element !== document.body
&& element !== document.documentElement) {
top -= element.scrollTop;
const c = isShadowRoot(element) ? null : getComputedStyle(element);
if (c) {
left -= c.direction !== 'rtl' ? element.scrollLeft : -element.scrollLeft;
}
if (element === offsetParent) {
left += SizeUtils.getBorderLeftWidth(element);
top += SizeUtils.getBorderTopWidth(element);
top += element.offsetTop;
left += element.offsetLeft;
offsetParent = element.offsetParent;
}
}
return {
left: left,
top: top
};
}
export function size(element, width, height) {
if (typeof width === 'number') {
element.style.width = `${width}px`;
}
if (typeof height === 'number') {
element.style.height = `${height}px`;
}
}
/**
* Returns the position of a dom node relative to the entire page.
*/
export function getDomNodePagePosition(domNode) {
let bb = domNode.getBoundingClientRect();
return {
left: bb.left + StandardWindow.scrollX,
top: bb.top + StandardWindow.scrollY,
width: bb.width,
height: bb.height
};
}
export const StandardWindow = new class {
get scrollX() {
if (typeof window.scrollX === 'number') {
// modern browsers
return window.scrollX;
}
else {
return document.body.scrollLeft + document.documentElement.scrollLeft;
}
}
get scrollY() {
if (typeof window.scrollY === 'number') {
// modern browsers
return window.scrollY;
}
else {
return document.body.scrollTop + document.documentElement.scrollTop;
}
}
};
// Adapted from WinJS
// Gets the width of the element, including margins.
export function getTotalWidth(element) {
let margin = SizeUtils.getMarginLeft(element) + SizeUtils.getMarginRight(element);
return element.offsetWidth + margin;
}
export function getContentWidth(element) {
let border = SizeUtils.getBorderLeftWidth(element) + SizeUtils.getBorderRightWidth(element);
let padding = SizeUtils.getPaddingLeft(element) + SizeUtils.getPaddingRight(element);
return element.offsetWidth - border - padding;
}
// Adapted from WinJS
// Gets the height of the content of the specified element. The content height does not include borders or padding.
export function getContentHeight(element) {
let border = SizeUtils.getBorderTopWidth(element) + SizeUtils.getBorderBottomWidth(element);
let padding = SizeUtils.getPaddingTop(element) + SizeUtils.getPaddingBottom(element);
return element.offsetHeight - border - padding;
}
// Adapted from WinJS
// Gets the height of the element, including its margins.
export function getTotalHeight(element) {
let margin = SizeUtils.getMarginTop(element) + SizeUtils.getMarginBottom(element);
return element.offsetHeight + margin;
}
// ----------------------------------------------------------------------------------------
export function isAncestor(testChild, testAncestor) {
while (testChild) {
if (testChild === testAncestor) {
return true;
}
testChild = testChild.parentNode;
}
return false;
}
export function findParentWithClass(node, clazz, stopAtClazzOrNode) {
while (node && node.nodeType === node.ELEMENT_NODE) {
if (node.classList.contains(clazz)) {
return node;
}
if (stopAtClazzOrNode) {
if (typeof stopAtClazzOrNode === 'string') {
if (node.classList.contains(stopAtClazzOrNode)) {
return null;
}
}
else {
if (node === stopAtClazzOrNode) {
return null;
}
}
}
node = node.parentNode;
}
return null;
}
export function hasParentWithClass(node, clazz, stopAtClazzOrNode) {
return !!findParentWithClass(node, clazz, stopAtClazzOrNode);
}
export function isShadowRoot(node) {
return (node && !!node.host && !!node.mode);
}
export function isInShadowDOM(domNode) {
return !!getShadowRoot(domNode);
}
export function getShadowRoot(domNode) {
while (domNode.parentNode) {
if (domNode === document.body) {
// reached the body
return null;
}
domNode = domNode.parentNode;
}
return isShadowRoot(domNode) ? domNode : null;
}
export function getActiveElement() {
let result = document.activeElement;
while (result === null || result === void 0 ? void 0 : result.shadowRoot) {
result = result.shadowRoot.activeElement;
}
return result;
}
export function createStyleSheet(container = document.getElementsByTagName('head')[0]) {
let style = document.createElement('style');
style.type = 'text/css';
style.media = 'screen';
container.appendChild(style);
return style;
}
let _sharedStyleSheet = null;
function getSharedStyleSheet() {
if (!_sharedStyleSheet) {
_sharedStyleSheet = createStyleSheet();
}
return _sharedStyleSheet;
}
function getDynamicStyleSheetRules(style) {
var _a, _b;
if ((_a = style === null || style === void 0 ? void 0 : style.sheet) === null || _a === void 0 ? void 0 : _a.rules) {
// Chrome, IE
return style.sheet.rules;
}
if ((_b = style === null || style === void 0 ? void 0 : style.sheet) === null || _b === void 0 ? void 0 : _b.cssRules) {
// FF
return style.sheet.cssRules;
}
return [];
}
export function createCSSRule(selector, cssText, style = getSharedStyleSheet()) {
if (!style || !cssText) {
return;
}
style.sheet.insertRule(selector + '{' + cssText + '}', 0);
}
export function removeCSSRulesContainingSelector(ruleName, style = getSharedStyleSheet()) {
if (!style) {
return;
}
let rules = getDynamicStyleSheetRules(style);
let toDelete = [];
for (let i = 0; i < rules.length; i++) {
let rule = rules[i];
if (rule.selectorText.indexOf(ruleName) !== -1) {
toDelete.push(i);
}
}
for (let i = toDelete.length - 1; i >= 0; i--) {
style.sheet.deleteRule(toDelete[i]);
}
}
export function isHTMLElement(o) {
if (typeof HTMLElement === 'object') {
return o instanceof HTMLElement;
}
return o && typeof o === 'object' && o.nodeType === 1 && typeof o.nodeName === 'string';
}
export const EventType = {
// Mouse
CLICK: 'click',
AUXCLICK: 'auxclick',
DBLCLICK: 'dblclick',
MOUSE_UP: 'mouseup',
MOUSE_DOWN: 'mousedown',
MOUSE_OVER: 'mouseover',
MOUSE_MOVE: 'mousemove',
MOUSE_OUT: 'mouseout',
MOUSE_ENTER: 'mouseenter',
MOUSE_LEAVE: 'mouseleave',
MOUSE_WHEEL: 'wheel',
POINTER_UP: 'pointerup',
POINTER_DOWN: 'pointerdown',
POINTER_MOVE: 'pointermove',
CONTEXT_MENU: 'contextmenu',
WHEEL: 'wheel',
// Keyboard
KEY_DOWN: 'keydown',
KEY_PRESS: 'keypress',
KEY_UP: 'keyup',
// HTML Document
LOAD: 'load',
BEFORE_UNLOAD: 'beforeunload',
UNLOAD: 'unload',
ABORT: 'abort',
ERROR: 'error',
RESIZE: 'resize',
SCROLL: 'scroll',
FULLSCREEN_CHANGE: 'fullscreenchange',
WK_FULLSCREEN_CHANGE: 'webkitfullscreenchange',
// Form
SELECT: 'select',
CHANGE: 'change',
SUBMIT: 'submit',
RESET: 'reset',
FOCUS: 'focus',
FOCUS_IN: 'focusin',
FOCUS_OUT: 'focusout',
BLUR: 'blur',
INPUT: 'input',
// Local Storage
STORAGE: 'storage',
// Drag
DRAG_START: 'dragstart',
DRAG: 'drag',
DRAG_ENTER: 'dragenter',
DRAG_LEAVE: 'dragleave',
DRAG_OVER: 'dragover',
DROP: 'drop',
DRAG_END: 'dragend',
// Animation
ANIMATION_START: browser.isWebKit ? 'webkitAnimationStart' : 'animationstart',
ANIMATION_END: browser.isWebKit ? 'webkitAnimationEnd' : 'animationend',
ANIMATION_ITERATION: browser.isWebKit ? 'webkitAnimationIteration' : 'animationiteration'
};
export const EventHelper = {
stop: function (e, cancelBubble) {
if (e.preventDefault) {
e.preventDefault();
}
else {
// IE8
e.returnValue = false;
}
if (cancelBubble) {
if (e.stopPropagation) {
e.stopPropagation();
}
else {
// IE8
e.cancelBubble = true;
}
}
}
};
export function saveParentsScrollTop(node) {
let r = [];
for (let i = 0; node && node.nodeType === node.ELEMENT_NODE; i++) {
r[i] = node.scrollTop;
node = node.parentNode;
}
return r;
}
export function restoreParentsScrollTop(node, state) {
for (let i = 0; node && node.nodeType === node.ELEMENT_NODE; i++) {
if (node.scrollTop !== state[i]) {
node.scrollTop = state[i];
}
node = node.parentNode;
}
}
class FocusTracker extends Disposable {
constructor(element) {
super();
this._onDidFocus = this._register(new Emitter());
this.onDidFocus = this._onDidFocus.event;
this._onDidBlur = this._register(new Emitter());
this.onDidBlur = this._onDidBlur.event;
let hasFocus = isAncestor(document.activeElement, element);
let loosingFocus = false;
const onFocus = () => {
loosingFocus = false;
if (!hasFocus) {
hasFocus = true;
this._onDidFocus.fire();
}
};
const onBlur = () => {
if (hasFocus) {
loosingFocus = true;
window.setTimeout(() => {
if (loosingFocus) {
loosingFocus = false;
hasFocus = false;
this._onDidBlur.fire();
}
}, 0);
}
};
this._refreshStateHandler = () => {
let currentNodeHasFocus = isAncestor(document.activeElement, element);
if (currentNodeHasFocus !== hasFocus) {
if (hasFocus) {
onBlur();
}
else {
onFocus();
}
}
};
this._register(addDisposableListener(element, EventType.FOCUS, onFocus, true));
this._register(addDisposableListener(element, EventType.BLUR, onBlur, true));
}
}
export function trackFocus(element) {
return new FocusTracker(element);
}
export function append(parent, ...children) {
parent.append(...children);
if (children.length === 1 && typeof children[0] !== 'string') {
return children[0];
}
}
export function prepend(parent, child) {
parent.insertBefore(child, parent.firstChild);
return child;
}
/**
* Removes all children from `parent` and appends `children`
*/
export function reset(parent, ...children) {
parent.innerText = '';
append(parent, ...children);
}
const SELECTOR_REGEX = /([\w\-]+)?(#([\w\-]+))?((\.([\w\-]+))*)/;
export var Namespace;
(function (Namespace) {
Namespace["HTML"] = "http://www.w3.org/1999/xhtml";
Namespace["SVG"] = "http://www.w3.org/2000/svg";
})(Namespace || (Namespace = {}));
function _$(namespace, description, attrs, ...children) {
let match = SELECTOR_REGEX.exec(description);
if (!match) {
throw new Error('Bad use of emmet');
}
attrs = Object.assign({}, (attrs || {}));
let tagName = match[1] || 'div';
let result;
if (namespace !== Namespace.HTML) {
result = document.createElementNS(namespace, tagName);
}
else {
result = document.createElement(tagName);
}
if (match[3]) {
result.id = match[3];
}
if (match[4]) {
result.className = match[4].replace(/\./g, ' ').trim();
}
Object.keys(attrs).forEach(name => {
const value = attrs[name];
if (typeof value === 'undefined') {
return;
}
if (/^on\w+$/.test(name)) {
result[name] = value;
}
else if (name === 'selected') {
if (value) {
result.setAttribute(name, 'true');
}
}
else {
result.setAttribute(name, value);
}
});
result.append(...children);
return result;
}
export function $(description, attrs, ...children) {
return _$(Namespace.HTML, description, attrs, ...children);
}
$.SVG = function (description, attrs, ...children) {
return _$(Namespace.SVG, description, attrs, ...children);
};
export function show(...elements) {
for (let element of elements) {
element.style.display = '';
element.removeAttribute('aria-hidden');
}
}
export function hide(...elements) {
for (let element of elements) {
element.style.display = 'none';
element.setAttribute('aria-hidden', 'true');
}
}
export function getElementsByTagName(tag) {
return Array.prototype.slice.call(document.getElementsByTagName(tag), 0);
}
/**
* Find a value usable for a dom node size such that the likelihood that it would be
* displayed with constant screen pixels size is as high as possible.
*
* e.g. We would desire for the cursors to be 2px (CSS px) wide. Under a devicePixelRatio
* of 1.25, the cursor will be 2.5 screen pixels wide. Depending on how the dom node aligns/"snaps"
* with the screen pixels, it will sometimes be rendered with 2 screen pixels, and sometimes with 3 screen pixels.
*/
export function computeScreenAwareSize(cssPx) {
const screenPx = window.devicePixelRatio * cssPx;
return Math.max(1, Math.floor(screenPx)) / window.devicePixelRatio;
}
/**
* Open safely a new window. This is the best way to do so, but you cannot tell
* if the window was opened or if it was blocked by the browser's popup blocker.
* If you want to tell if the browser blocked the new window, use `windowOpenNoOpenerWithSuccess`.
*
* See https://github.com/microsoft/monaco-editor/issues/601
* To protect against malicious code in the linked site, particularly phishing attempts,
* the window.opener should be set to null to prevent the linked site from having access
* to change the location of the current page.
* See https://mathiasbynens.github.io/rel-noopener/
*/
export function windowOpenNoOpener(url) {
// By using 'noopener' in the `windowFeatures` argument, the newly created window will
// not be able to use `window.opener` to reach back to the current page.
// See https://stackoverflow.com/a/46958731
// See https://developer.mozilla.org/en-US/docs/Web/API/Window/open#noopener
// However, this also doesn't allow us to realize if the browser blocked
// the creation of the window.
window.open(url, '_blank', 'noopener');
}
export function animate(fn) {
const step = () => {
fn();
stepDisposable = scheduleAtNextAnimationFrame(step);
};
let stepDisposable = scheduleAtNextAnimationFrame(step);
return toDisposable(() => stepDisposable.dispose());
}
RemoteAuthorities.setPreferredWebSchema(/^https:/.test(window.location.href) ? 'https' : 'http');
/**
* returns url('...')
*/
export function asCSSUrl(uri) {
if (!uri) {
return `url('')`;
}
return `url('${FileAccess.asBrowserUri(uri).toString(true).replace(/'/g, '%27')}')`;
}
export function asCSSPropertyValue(value) {
return `'${value.replace(/'/g, '%27')}'`;
}
export class ModifierKeyEmitter extends Emitter {
constructor() {
super();
this._subscriptions = new DisposableStore();
this._keyStatus = {
altKey: false,
shiftKey: false,
ctrlKey: false,
metaKey: false
};
this._subscriptions.add(addDisposableListener(window, 'keydown', e => {
if (e.defaultPrevented) {
return;
}
const event = new StandardKeyboardEvent(e);
// If Alt-key keydown event is repeated, ignore it #112347
// Only known to be necessary for Alt-Key at the moment #115810
if (event.keyCode === 6 /* Alt */ && e.repeat) {
return;
}
if (e.altKey && !this._keyStatus.altKey) {
this._keyStatus.lastKeyPressed = 'alt';
}
else if (e.ctrlKey && !this._keyStatus.ctrlKey) {
this._keyStatus.lastKeyPressed = 'ctrl';
}
else if (e.metaKey && !this._keyStatus.metaKey) {
this._keyStatus.lastKeyPressed = 'meta';
}
else if (e.shiftKey && !this._keyStatus.shiftKey) {
this._keyStatus.lastKeyPressed = 'shift';
}
else if (event.keyCode !== 6 /* Alt */) {
this._keyStatus.lastKeyPressed = undefined;
}
else {
return;
}
this._keyStatus.altKey = e.altKey;
this._keyStatus.ctrlKey = e.ctrlKey;
this._keyStatus.metaKey = e.metaKey;
this._keyStatus.shiftKey = e.shiftKey;
if (this._keyStatus.lastKeyPressed) {
this._keyStatus.event = e;
this.fire(this._keyStatus);
}
}, true));
this._subscriptions.add(addDisposableListener(window, 'keyup', e => {
if (e.defaultPrevented) {
return;
}
if (!e.altKey && this._keyStatus.altKey) {
this._keyStatus.lastKeyReleased = 'alt';
}
else if (!e.ctrlKey && this._keyStatus.ctrlKey) {
this._keyStatus.lastKeyReleased = 'ctrl';
}
else if (!e.metaKey && this._keyStatus.metaKey) {
this._keyStatus.lastKeyReleased = 'meta';
}
else if (!e.shiftKey && this._keyStatus.shiftKey) {
this._keyStatus.lastKeyReleased = 'shift';
}
else {
this._keyStatus.lastKeyReleased = undefined;
}
if (this._keyStatus.lastKeyPressed !== this._keyStatus.lastKeyReleased) {
this._keyStatus.lastKeyPressed = undefined;
}
this._keyStatus.altKey = e.altKey;
this._keyStatus.ctrlKey = e.ctrlKey;
this._keyStatus.metaKey = e.metaKey;
this._keyStatus.shiftKey = e.shiftKey;
if (this._keyStatus.lastKeyReleased) {
this._keyStatus.event = e;
this.fire(this._keyStatus);
}
}, true));
this._subscriptions.add(addDisposableListener(document.body, 'mousedown', () => {
this._keyStatus.lastKeyPressed = undefined;
}, true));
this._subscriptions.add(addDisposableListener(document.body, 'mouseup', () => {
this._keyStatus.lastKeyPressed = undefined;
}, true));
this._subscriptions.add(addDisposableListener(document.body, 'mousemove', e => {
if (e.buttons) {
this._keyStatus.lastKeyPressed = undefined;
}
}, true));
this._subscriptions.add(addDisposableListener(window, 'blur', () => {
this.resetKeyStatus();
}));
}
get keyStatus() {
return this._keyStatus;
}
/**
* Allows to explicitly reset the key status based on more knowledge (#109062)
*/
resetKeyStatus() {
this.doResetKeyStatus();
this.fire(this._keyStatus);
}
doResetKeyStatus() {
this._keyStatus = {
altKey: false,
shiftKey: false,
ctrlKey: false,
metaKey: false
};
}
static getInstance() {
if (!ModifierKeyEmitter.instance) {
ModifierKeyEmitter.instance = new ModifierKeyEmitter();
}
return ModifierKeyEmitter.instance;
}
dispose() {
super.dispose();
this._subscriptions.dispose();
}
}
export function addMatchMediaChangeListener(query, callback) {
const mediaQueryList = window.matchMedia(query);
if (typeof mediaQueryList.addEventListener === 'function') {
mediaQueryList.addEventListener('change', callback);
}
else {
// Safari 13.x
mediaQueryList.addListener(callback);
}
}