Telegram Web K with changes to work inside I2P
https://web.telegram.i2p/
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333 lines
8.3 KiB
333 lines
8.3 KiB
4 years ago
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/* export function isInDOM(element: Element, parentNode?: HTMLElement): boolean {
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if(!element) {
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return false;
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}
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parentNode = parentNode || document.body;
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if(element == parentNode) {
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return true;
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}
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return isInDOM(element.parentNode as HTMLElement, parentNode);
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} */
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export function isInDOM(element: Element): boolean {
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return element?.isConnected;
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}
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/* export function checkDragEvent(e: any) {
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if(!e || e.target && (e.target.tagName == 'IMG' || e.target.tagName == 'A')) return false
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if(e.dataTransfer && e.dataTransfer.types) {
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for(var i = 0; i < e.dataTransfer.types.length; i++) {
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if(e.dataTransfer.types[i] == 'Files') {
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return true;
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}
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}
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} else {
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return true;
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}
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return false;
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} */
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export function cancelEvent(event: Event) {
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event = event || window.event;
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if(event) {
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// @ts-ignore
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event = event.originalEvent || event;
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try {
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if(event.stopPropagation) event.stopPropagation();
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if(event.preventDefault) event.preventDefault();
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event.returnValue = false;
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event.cancelBubble = true;
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} catch(err) {}
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}
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return false;
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}
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export function getRichValue(field: any) {
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if(!field) {
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return '';
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}
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var lines: string[] = [];
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var line: string[] = [];
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getRichElementValue(field, lines, line);
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if (line.length) {
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lines.push(line.join(''));
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}
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var value = lines.join('\n');
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value = value.replace(/\u00A0/g, ' ');
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return value;
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}
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export function placeCaretAtEnd(el: HTMLElement) {
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el.focus();
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if(typeof window.getSelection != "undefined" && typeof document.createRange != "undefined") {
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var range = document.createRange();
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range.selectNodeContents(el);
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range.collapse(false);
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var sel = window.getSelection();
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sel.removeAllRanges();
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sel.addRange(range);
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// @ts-ignore
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} else if(typeof document.body.createTextRange != "undefined") {
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// @ts-ignore
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var textRange = document.body.createTextRange();
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textRange.moveToElementText(el);
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textRange.collapse(false);
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textRange.select();
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}
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}
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export function getRichElementValue(node: any, lines: string[], line: string[], selNode?: Node, selOffset?: number) {
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if(node.nodeType == 3) { // TEXT
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if(selNode === node) {
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var value = node.nodeValue
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line.push(value.substr(0, selOffset) + '\x01' + value.substr(selOffset))
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} else {
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line.push(node.nodeValue)
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}
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return
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}
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if (node.nodeType != 1) { // NON-ELEMENT
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return
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}
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var isSelected = (selNode === node)
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var isBlock = node.tagName == 'DIV' || node.tagName == 'P'
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var curChild
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if(isBlock && line.length || node.tagName == 'BR') {
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lines.push(line.join(''))
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line.splice(0, line.length)
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} else if(node.tagName == 'IMG') {
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if(node.alt) {
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line.push(node.alt);
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}
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}
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if(isSelected && !selOffset) {
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line.push('\x01');
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}
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var curChild = node.firstChild;
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while(curChild) {
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getRichElementValue(curChild, lines, line, selNode, selOffset);
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curChild = curChild.nextSibling;
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}
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if(isSelected && selOffset) {
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line.push('\x01');
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}
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if(isBlock && line.length) {
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lines.push(line.join(''));
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line.splice(0, line.length);
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}
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}
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/* if (Config.Modes.animations &&
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typeof window.requestAnimationFrame == 'function') {
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window.onAnimationFrameCallback = function (cb) {
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return (function () {
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window.requestAnimationFrame(cb)
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})
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}
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} else {
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window.onAnimationFrameCallback = function (cb) {
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return cb
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}
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} */
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// generate a path's arc data parameter
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// http://www.w3.org/TR/SVG/paths.html#PathDataEllipticalArcCommands
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var arcParameter = function(rx: number, ry: number, xAxisRotation: number, largeArcFlag: number, sweepFlag: number, x: number, y: number) {
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return [rx, ',', ry, ' ',
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xAxisRotation, ' ',
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largeArcFlag, ',',
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sweepFlag, ' ',
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x, ',', y ].join('');
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};
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export function generatePathData(x: number, y: number, width: number, height: number, tl: number, tr: number, br: number, bl: number) {
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const data: string[] = [];
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// start point in top-middle of the rectangle
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data.push('M' + (x + width / 2) + ',' + y);
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// next we go to the right
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data.push('H' + (x + width - tr));
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if(tr > 0) {
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// now we draw the arc in the top-right corner
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data.push('A' + arcParameter(tr, tr, 0, 0, 1, (x + width), (y + tr)));
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}
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// next we go down
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data.push('V' + (y + height - br));
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if(br > 0) {
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// now we draw the arc in the lower-right corner
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data.push('A' + arcParameter(br, br, 0, 0, 1, (x + width - br), (y + height)));
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}
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// now we go to the left
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data.push('H' + (x + bl));
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if(bl > 0) {
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// now we draw the arc in the lower-left corner
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data.push('A' + arcParameter(bl, bl, 0, 0, 1, (x + 0), (y + height - bl)));
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}
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// next we go up
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data.push('V' + (y + tl));
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if(tl > 0) {
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// now we draw the arc in the top-left corner
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data.push('A' + arcParameter(tl, tl, 0, 0, 1, (x + tl), (y + 0)));
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}
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// and we close the path
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data.push('Z');
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return data.join(' ');
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};
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//export function findUpClassName<T>(el: any, className: string): T;
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export function findUpClassName(el: any, className: string): HTMLElement {
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return el.closest('.' + className);
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/* if(el.classList.contains(className)) return el; // 03.02.2020
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while(el.parentElement) {
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el = el.parentElement;
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if(el.classList.contains(className))
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return el;
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}
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return null; */
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}
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export function findUpTag(el: any, tag: string): HTMLElement {
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return el.closest(tag);
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/* if(el.tagName == tag) return el; // 03.02.2020
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while(el.parentElement) {
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el = el.parentElement;
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if(el.tagName === tag)
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return el;
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}
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return null; */
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}
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export function findUpAttribute(el: any, attribute: string): HTMLElement {
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return el.closest(`[${attribute}]`);
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/* if(el.getAttribute(attribute) != null) return el; // 03.02.2020
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while(el.parentElement) {
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el = el.parentElement;
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if(el.getAttribute(attribute) != null)
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return el;
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}
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return null; */
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}
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export function whichChild(elem: Node) {
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if(!elem.parentNode) {
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return -1;
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}
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let i = 0;
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// @ts-ignore
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while((elem = elem.previousElementSibling) != null) ++i;
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return i;
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};
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export function fillPropertyValue(str: string) {
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let splitted = str.split(' ');
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if(splitted.length != 4) {
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if(!splitted[0]) splitted[0] = '0px';
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for(let i = splitted.length; i < 4; ++i) {
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splitted[i] = splitted[i % 2] || splitted[0] || '0px';
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}
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}
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return splitted;
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}
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export function calcImageInBox(imageW: number, imageH: number, boxW: number, boxH: number, noZoom?: boolean) {
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if(imageW < boxW && imageH < boxH) {
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return {w: imageW, h: imageH};
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}
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var boxedImageW = boxW;
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var boxedImageH = boxH;
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if((imageW / imageH) > (boxW / boxH)) {
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boxedImageH = (imageH * boxW / imageW) | 0;
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} else {
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boxedImageW = (imageW * boxH / imageH) | 0;
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if(boxedImageW > boxW) {
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boxedImageH = (boxedImageH * boxW / boxedImageW) | 0;
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boxedImageW = boxW;
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}
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}
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// if (Config.Navigator.retina) {
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// imageW = Math.floor(imageW / 2)
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// imageH = Math.floor(imageH / 2)
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// }
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if(noZoom && boxedImageW >= imageW && boxedImageH >= imageH) {
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boxedImageW = imageW;
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boxedImageH = imageH;
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}
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return {w: boxedImageW, h: boxedImageH};
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}
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export function positionElementByIndex(element: HTMLElement, container: HTMLElement, pos: number) {
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const prevPos = whichChild(element);
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if(prevPos == pos) {
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return false;
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} else if(prevPos != -1 && prevPos < pos) { // was higher
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pos += 1;
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}
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if(container.childElementCount > pos) {
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container.insertBefore(element, container.children[pos]);
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} else {
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container.append(element);
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}
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return true;
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}
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export function cancelSelection() {
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if(window.getSelection) {
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if(window.getSelection().empty) { // Chrome
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window.getSelection().empty();
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} else if(window.getSelection().removeAllRanges) { // Firefox
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window.getSelection().removeAllRanges();
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}
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// @ts-ignore
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} else if(document.selection) { // IE?
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// @ts-ignore
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document.selection.empty();
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}
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}
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//(window as any).splitStringByLength = splitStringByLength;
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export function getSelectedText(): string {
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if(window.getSelection) {
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return window.getSelection().toString();
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// @ts-ignore
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} else if(document.selection) {
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// @ts-ignore
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return document.selection.createRange().text;
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}
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return '';
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}
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