var sessionID = "0" var windowFocus = true window.onresize = function() { scanElementsSize(); } window.onbeforeunload = function(event) { sendMessage( "session-close{session=" + sessionID +"}" ); } window.onblur = function(event) { windowFocus = false sendMessage( "session-pause{session=" + sessionID +"}" ); } function sessionInfo() { const touch_screen = (('ontouchstart' in document.documentElement) || (navigator.maxTouchPoints > 0) || (navigator.msMaxTouchPoints > 0)) ? "1" : "0"; var message = "startSession{touch=" + touch_screen const style = window.getComputedStyle(document.body); if (style) { var direction = style.getPropertyValue('direction'); if (direction) { message += ",direction=" + direction } } const lang = window.navigator.language; if (lang) { message += ",language=\"" + lang + "\""; } const langs = window.navigator.languages; if (langs) { message += ",languages=\"" + langs + "\""; } const userAgent = window.navigator.userAgent if (userAgent) { message += ",user-agent=\"" + userAgent + "\""; } const darkThemeMq = window.matchMedia("(prefers-color-scheme: dark)"); if (darkThemeMq.matches) { message += ",dark=1"; } const pixelRatio = window.devicePixelRatio; if (pixelRatio) { message += ",pixel-ratio=" + pixelRatio; } return message + "}"; } function getIntAttribute(element, tag) { let value = element.getAttribute(tag); if (value) { return value; } return 0; } function scanElementsSize() { var element = document.getElementById("ruiRootView"); if (element) { let rect = element.getBoundingClientRect(); let width = getIntAttribute(element, "data-width"); let height = getIntAttribute(element, "data-height"); if (rect.width > 0 && rect.height > 0 && (width != rect.width || height != rect.height)) { element.setAttribute("data-width", rect.width); element.setAttribute("data-height", rect.height); sendMessage("root-size{session=" + sessionID + ",width=" + rect.width + ",height=" + rect.height +"}"); } } var views = document.getElementsByClassName("ruiView"); if (views) { var message = "resize{session=" + sessionID + ",views=[" var count = 0 for (var i = 0; i < views.length; i++) { let element = views[i]; let noresize = element.getAttribute("data-noresize"); if (!noresize) { let rect = element.getBoundingClientRect(); let top = getIntAttribute(element, "data-top"); let left = getIntAttribute(element, "data-left"); let width = getIntAttribute(element, "data-width"); let height = getIntAttribute(element, "data-height"); if (rect.width > 0 && rect.height > 0 && (width != rect.width || height != rect.height || left != rect.left || top != rect.top)) { element.setAttribute("data-top", rect.top); element.setAttribute("data-left", rect.left); element.setAttribute("data-width", rect.width); element.setAttribute("data-height", rect.height); if (count > 0) { message += ","; } message += "view{id=" + element.id + ",x=" + rect.left + ",y=" + rect.top + ",width=" + rect.width + ",height=" + rect.height + ",scroll-x=" + element.scrollLeft + ",scroll-y=" + element.scrollTop + ",scroll-width=" + element.scrollWidth + ",scroll-height=" + element.scrollHeight + "}"; count += 1; } } } if (count > 0) { sendMessage(message + "]}"); } } } function scrollEvent(element, event) { sendMessage("scroll{session=" + sessionID + ",id=" + element.id + ",x=" + element.scrollLeft + ",y=" + element.scrollTop + ",width=" + element.scrollWidth + ",height=" + element.scrollHeight + "}"); } function updateCSSRule(selector, ruleText) { var styleSheet = document.styleSheets[0]; var rules = styleSheet.cssRules ? styleSheet.cssRules : styleSheet.rules selector = "." + selector for (var i = 0; i < rules.length; i++) { var rule = rules[i] if (!rule.selectorText) { continue; } if (rule.selectorText == selector) { if (styleSheet.deleteRule) { styleSheet.deleteRule(i) } else if (styleSheet.removeRule) { styleSheet.removeRule(i) } break; } } if (styleSheet.insertRule) { styleSheet.insertRule(selector + " { " + ruleText + "}") } else if (styleSheet.addRule) { styleSheet.addRule(selector, ruleText, rules.length) } scanElementsSize(); } function updateCSSStyle(elementId, style) { var element = document.getElementById(elementId); if (element) { element.style = style; scanElementsSize(); } } function updateCSSProperty(elementId, property, value) { var element = document.getElementById(elementId); if (element) { element.style[property] = value; scanElementsSize(); } } function updateProperty(elementId, property, value) { var element = document.getElementById(elementId); if (element) { element.setAttribute(property, value); scanElementsSize(); } } function removeProperty(elementId, property) { var element = document.getElementById(elementId); if (element && element.hasAttribute(property)) { element.removeAttribute(property); scanElementsSize(); } } function updateInnerHTML(elementId, content) { var element = document.getElementById(elementId); if (element) { element.innerHTML = content; scanElementsSize(); } } function appendToInnerHTML(elementId, content) { var element = document.getElementById(elementId); if (element) { element.innerHTML += content; scanElementsSize(); } } function setDisabled(elementId, disabled) { var element = document.getElementById(elementId); if (element) { if ('disabled' in element) { element.disabled = disabled } else { element.setAttribute("data-disabled", disabled ? "1" : "0"); } scanElementsSize(); } } function focusEvent(element, event) { event.stopPropagation(); sendMessage("focus-event{session=" + sessionID + ",id=" + element.id + "}"); } function blurEvent(element, event) { event.stopPropagation(); sendMessage("lost-focus-event{session=" + sessionID + ",id=" + element.id + "}"); } function enterOrSpaceKeyClickEvent(event) { if (event.key) { return (event.key == " " || event.key == "Enter"); } else if (event.keyCode) { return (event.keyCode == 32 || event.keyCode == 13); } return false; } function activateTab(layoutId, tabNumber) { var element = document.getElementById(layoutId); if (element) { var currentTabId = element.getAttribute("data-current"); var newTabId = layoutId + '-' + tabNumber; if (currentTabId != newTabId) { function setTab(tabId, styleProperty, display) { var tab = document.getElementById(tabId); if (tab) { tab.className = element.getAttribute(styleProperty); var page = document.getElementById(tab.getAttribute("data-view")); if (page) { page.style.display = display; } } } setTab(currentTabId, "data-inactiveTabStyle", "none") setTab(newTabId, "data-activeTabStyle", ""); element.setAttribute("data-current", newTabId); scanElementsSize() } } } function tabClickEvent(tab, layoutId, tabNumber, event) { event.stopPropagation(); event.preventDefault(); activateTab(layoutId, tabNumber) if (tab) { tab.blur() } sendMessage("tabClick{session=" + sessionID + ",id=" + layoutId + ",number=" + tabNumber + "}"); } function tabKeyClickEvent(layoutId, tabNumber, event) { if (enterOrSpaceKeyClickEvent(event)) { tabClickEvent(null, layoutId, tabNumber, event) } } function tabCloseClickEvent(button, layoutId, tabNumber, event) { event.stopPropagation(); event.preventDefault(); if (button) { button.blur() } sendMessage("tabCloseClick{session=" + sessionID + ",id=" + layoutId + ",number=" + tabNumber + "}"); } function tabCloseKeyClickEvent(layoutId, tabNumber, event) { if (enterOrSpaceKeyClickEvent(event)) { tabCloseClickEvent(null, layoutId, tabNumber, event) } } function keyEvent(element, event, tag) { event.stopPropagation(); var message = tag + "{session=" + sessionID + ",id=" + element.id; if (event.timeStamp) { message += ",timeStamp=" + event.timeStamp; } if (event.key) { message += ",key=\"" + event.key + "\""; } if (event.code) { message += ",code=\"" + event.code + "\""; } if (event.repeat) { message += ",repeat=1"; } if (event.ctrlKey) { message += ",ctrlKey=1"; } if (event.shiftKey) { message += ",shiftKey=1"; } if (event.altKey) { message += ",altKey=1"; } if (event.metaKey) { message += ",metaKey=1"; } message += "}" sendMessage(message); } function keyDownEvent(element, event) { keyEvent(element, event, "key-down-event") } function keyUpEvent(element, event) { keyEvent(element, event, "key-up-event") } function mouseEventData(element, event) { var message = "" if (event.timeStamp) { message += ",timeStamp=" + event.timeStamp; } if (event.button) { message += ",button=" + event.button; } if (event.buttons) { message += ",buttons=" + event.buttons; } if (event.clientX) { var x = event.clientX; var el = element; if (el.parentElement) { x += el.parentElement.scrollLeft; } while (el) { x -= el.offsetLeft el = el.parentElement } message += ",x=" + x + ",clientX=" + event.clientX; } if (event.clientY) { var y = event.clientY; var el = element; if (el.parentElement) { y += el.parentElement.scrollTop; } while (el) { y -= el.offsetTop el = el.parentElement } message += ",y=" + y + ",clientY=" + event.clientY; } if (event.screenX) { message += ",screenX=" + event.screenX; } if (event.screenY) { message += ",screenY=" + event.screenY; } if (event.ctrlKey) { message += ",ctrlKey=1"; } if (event.shiftKey) { message += ",shiftKey=1"; } if (event.altKey) { message += ",altKey=1"; } if (event.metaKey) { message += ",metaKey=1"; } return message } function mouseEvent(element, event, tag) { event.stopPropagation(); //event.preventDefault() var message = tag + "{session=" + sessionID + ",id=" + element.id + mouseEventData(element, event) + "}"; sendMessage(message); } function mouseDownEvent(element, event) { mouseEvent(element, event, "mouse-down") } function mouseUpEvent(element, event) { mouseEvent(element, event, "mouse-up") } function mouseMoveEvent(element, event) { mouseEvent(element, event, "mouse-move") } function mouseOverEvent(element, event) { mouseEvent(element, event, "mouse-over") } function mouseOutEvent(element, event) { mouseEvent(element, event, "mouse-out") } function clickEvent(element, event) { mouseEvent(element, event, "click-event") event.preventDefault(); } function doubleClickEvent(element, event) { mouseEvent(element, event, "double-click-event") event.preventDefault(); } function contextMenuEvent(element, event) { mouseEvent(element, event, "context-menu-event") event.preventDefault(); } function pointerEvent(element, event, tag) { event.stopPropagation(); var message = tag + "{session=" + sessionID + ",id=" + element.id + mouseEventData(element, event); if (event.pointerId) { message += ",pointerId=" + event.pointerId; } if (event.width) { message += ",width=" + event.width; } if (event.height) { message += ",height=" + event.height; } if (event.pressure) { message += ",pressure=" + event.pressure; } if (event.tangentialPressure) { message += ",tangentialPressure=" + event.tangentialPressure; } if (event.tiltX) { message += ",tiltX=" + event.tiltX; } if (event.tiltY) { message += ",tiltY=" + event.tiltY; } if (event.twist) { message += ",twist=" + event.twist; } if (event.pointerType) { message += ",pointerType=" + event.pointerType; } if (event.isPrimary) { message += ",isPrimary=1"; } message += "}"; sendMessage(message); } function pointerDownEvent(element, event) { pointerEvent(element, event, "pointer-down") } function pointerUpEvent(element, event) { pointerEvent(element, event, "pointer-up") } function pointerMoveEvent(element, event) { pointerEvent(element, event, "pointer-move") } function pointerCancelEvent(element, event) { pointerEvent(element, event, "pointer-cancel") } function pointerOverEvent(element, event) { pointerEvent(element, event, "pointer-over") } function pointerOutEvent(element, event) { pointerEvent(element, event, "pointer-out") } function touchEvent(element, event, tag) { event.stopPropagation(); var message = tag + "{session=" + sessionID + ",id=" + element.id; if (event.timeStamp) { message += ",timeStamp=" + event.timeStamp; } if (event.touches && event.touches.length > 0) { message += ",touches=[" for (var i = 0; i < event.touches.length; i++) { var touch = event.touches.item(i) if (touch) { if (i > 0) { message += "," } message += "touch{identifier=" + touch.identifier; var x = touch.clientX; var y = touch.clientY; var el = element; if (el.parentElement) { x += el.parentElement.scrollLeft; y += el.parentElement.scrollTop; } while (el) { x -= el.offsetLeft y -= el.offsetTop el = el.parentElement } message += ",x=" + x + ",y=" + y + ",clientX=" + touch.clientX + ",clientY=" + touch.clientY + ",screenX=" + touch.screenX + ",screenY=" + touch.screenY + ",radiusX=" + touch.radiusX + ",radiusY=" + touch.radiusY + ",rotationAngle=" + touch.rotationAngle + ",force=" + touch.force + "}" } } message += "]" } if (event.ctrlKey) { message += ",ctrlKey=1"; } if (event.shiftKey) { message += ",shiftKey=1"; } if (event.altKey) { message += ",altKey=1"; } if (event.metaKey) { message += ",metaKey=1"; } message += "}"; sendMessage(message); } function touchStartEvent(element, event) { touchEvent(element, event, "touch-start") } function touchEndEvent(element, event) { touchEvent(element, event, "touch-end") } function touchMoveEvent(element, event) { touchEvent(element, event, "touch-move") } function touchCancelEvent(element, event) { touchEvent(element, event, "touch-cancel") } function dropDownListEvent(element, event) { event.stopPropagation(); var message = "itemSelected{session=" + sessionID + ",id=" + element.id + ",number=" + element.selectedIndex.toString() + "}" sendMessage(message); } function selectDropDownListItem(elementId, number) { var element = document.getElementById(elementId); if (element) { element.selectedIndex = number; scanElementsSize(); } } function listItemClickEvent(element, event) { event.stopPropagation(); var selected = false; if (element.classList) { const focusStyle = getListFocusedItemStyle(element); const blurStyle = getListSelectedItemStyle(element); selected = (element.classList.contains(focusStyle) || element.classList.contains(blurStyle)); } var list = element.parentNode.parentNode if (list) { if (!selected) { selectListItem(list, element, true) } var message = "itemClick{session=" + sessionID + ",id=" + list.id + "}" sendMessage(message); } } function getListItemNumber(itemId) { var pos = itemId.indexOf("-") if (pos >= 0) { return parseInt(itemId.substring(pos+1)) } } function getStyleAttribute(element, attr, defValue) { var result = element.getAttribute(attr); if (result) { return result; } return defValue; } function getListFocusedItemStyle(element) { return getStyleAttribute(element, "data-focusitemstyle", "ruiListItemFocused"); } function getListSelectedItemStyle(element) { return getStyleAttribute(element, "data-bluritemstyle", "ruiListItemSelected"); } function selectListItem(element, item, needSendMessage) { var currentId = element.getAttribute("data-current"); var message; const focusStyle = getListFocusedItemStyle(element); const blurStyle = getListSelectedItemStyle(element); if (currentId) { var current = document.getElementById(currentId); if (current) { if (current.classList) { current.classList.remove(focusStyle, blurStyle); } if (sendMessage) { message = "itemUnselected{session=" + sessionID + ",id=" + element.id + "}"; } } } if (item) { if (element === document.activeElement) { if (item.classList) { item.classList.add(focusStyle); } } else { if (item.classList) { item.classList.add(blurStyle); } } element.setAttribute("data-current", item.id); if (sendMessage) { var number = getListItemNumber(item.id) if (number != undefined) { message = "itemSelected{session=" + sessionID + ",id=" + element.id + ",number=" + number + "}"; } } if (item.scrollIntoViewIfNeeded) { item.scrollIntoViewIfNeeded() } else { item.scrollIntoView({block: "nearest", inline: "nearest"}); } /* var left = item.offsetLeft - element.offsetLeft; if (left < element.scrollLeft) { element.scrollLeft = left; } var top = item.offsetTop - element.offsetTop; if (top < element.scrollTop) { element.scrollTop = top; } var right = left + item.offsetWidth; if (right > element.scrollLeft + element.clientWidth) { element.scrollLeft = right - element.clientWidth; } var bottom = top + item.offsetHeight if (bottom > element.scrollTop + element.clientHeight) { element.scrollTop = bottom - element.clientHeight; }*/ } if (needSendMessage && message != undefined) { sendMessage(message); } scanElementsSize(); } function findRightListItem(list, x, y) { list = list.childNodes[0]; var result; var count = list.childNodes.length; for (var i = 0; i < count; i++) { var item = list.childNodes[i]; if (item.offsetLeft >= x) { if (result) { var result_dy = Math.abs(result.offsetTop - y); var item_dy = Math.abs(item.offsetTop - y); if (item_dy < result_dy || (item_dy == result_dy && (item.offsetLeft - x) < (result.offsetLeft - x))) { result = item; } } else { result = item; } } } return result } function findLeftListItem(list, x, y) { list = list.childNodes[0]; var result; var count = list.childNodes.length; for (var i = 0; i < count; i++) { var item = list.childNodes[i]; if (item.offsetLeft < x) { if (result) { var result_dy = Math.abs(result.offsetTop - y); var item_dy = Math.abs(item.offsetTop - y); if (item_dy < result_dy || (item_dy == result_dy && (x - item.offsetLeft) < (x - result.offsetLeft))) { result = item; } } else { result = item; } } } return result } function findTopListItem(list, x, y) { list = list.childNodes[0]; var result; var count = list.childNodes.length; for (var i = 0; i < count; i++) { var item = list.childNodes[i]; if (item.offsetTop < y) { if (result) { var result_dx = Math.abs(result.offsetLeft - x); var item_dx = Math.abs(item.offsetLeft - x); if (item_dx < result_dx || (item_dx == result_dx && (y - item.offsetTop) < (y - result.offsetTop))) { result = item; } } else { result = item; } } } return result } function findBottomListItem(list, x, y) { list = list.childNodes[0]; var result; var count = list.childNodes.length; for (var i = 0; i < count; i++) { var item = list.childNodes[i]; if (item.offsetTop >= y) { if (result) { var result_dx = Math.abs(result.offsetLeft - x); var item_dx = Math.abs(item.offsetLeft - x); if (item_dx < result_dx || (item_dx == result_dx && (item.offsetTop - y) < (result.offsetTop - y))) { result = item; } } else { result = item; } } } return result } function getKey(event) { if (event.key) { return event.key; } if (event.keyCode) { switch (event.keyCode) { case 13: return "Enter"; case 32: return " "; case 33: return "PageUp"; case 34: return "PageDown"; case 35: return "End"; case 36: return "Home"; case 37: return "ArrowLeft"; case 38: return "ArrowUp"; case 39: return "ArrowRight"; case 40: return "ArrowDown"; } } } function listViewKeyDownEvent(element, event) { const key = getKey(event); if (key) { var currentId = element.getAttribute("data-current"); var current if (currentId) { current = document.getElementById(currentId); //number = getListItemNumber(currentId); } if (current) { var item switch (key) { case " ": case "Enter": var message = "itemClick{session=" + sessionID + ",id=" + element.id + "}"; sendMessage(message); break; case "ArrowLeft": item = findLeftListItem(element, current.offsetLeft, current.offsetTop); break; case "ArrowRight": item = findRightListItem(element, current.offsetLeft + current.offsetWidth, current.offsetTop); break; case "ArrowDown": item = findBottomListItem(element, current.offsetLeft, current.offsetTop + current.offsetHeight); break; case "ArrowUp": item = findTopListItem(element, current.offsetLeft, current.offsetTop); break; case "Home": item = element.childNodes[0]; break; case "End": item = element.childNodes[element.childNodes.length - 1]; break; case "PageUp": // TODO break; case "PageDown": // TODO break; default: return; } if (item && item !== current) { selectListItem(element, item, true); } } } event.stopPropagation(); event.preventDefault(); } function listViewFocusEvent(element, event) { var currentId = element.getAttribute("data-current"); if (currentId) { var current = document.getElementById(currentId); if (current) { if (current.classList) { current.classList.remove(getListSelectedItemStyle(element)); current.classList.add(getListFocusedItemStyle(element)); } } } } function listViewBlurEvent(element, event) { var currentId = element.getAttribute("data-current"); if (currentId) { var current = document.getElementById(currentId); if (current) { if (current.classList) { current.classList.remove(getListFocusedItemStyle(element)); current.classList.add(getListSelectedItemStyle(element)); } } } } function selectRadioButton(radioButtonId) { var element = document.getElementById(radioButtonId); if (element) { var list = element.parentNode if (list) { var current = list.getAttribute("data-current"); if (current) { if (current === radioButtonId) { return } var mark = document.getElementById(current + "mark"); if (mark) { //mark.hidden = true mark.style.visibility = "hidden" } } var mark = document.getElementById(radioButtonId + "mark"); if (mark) { //mark.hidden = false mark.style.visibility = "visible" } list.setAttribute("data-current", radioButtonId); var message = "radioButtonSelected{session=" + sessionID + ",id=" + list.id + ",radioButton=" + radioButtonId + "}" sendMessage(message); scanElementsSize(); } } } function unselectRadioButtons(radioButtonsId) { var list = document.getElementById(radioButtonsId); if (list) { var current = list.getAttribute("data-current"); if (current) { var mark = document.getElementById(current + "mark"); if (mark) { mark.style.visibility = "hidden" } list.removeAttribute("data-current"); } var message = "radioButtonUnselected{session=" + sessionID + ",id=" + list.id + "}" sendMessage(message); scanElementsSize(); } } function radioButtonClickEvent(element, event) { event.stopPropagation(); event.preventDefault(); selectRadioButton(element.id) } function radioButtonKeyClickEvent(element, event) { if (enterOrSpaceKeyClickEvent(event)) { radioButtonClickEvent(element, event); } } function editViewInputEvent(element) { var text = element.value text = text.replace(/\\/g, "\\\\") text = text.replace(/\"/g, "\\\"") var message = "textChanged{session=" + sessionID + ",id=" + element.id + ",text=\"" + text + "\"}" sendMessage(message); } function setInputValue(elementId, text) { var element = document.getElementById(elementId); if (element) { element.value = text; scanElementsSize(); } } function fileSelectedEvent(element) { var files = element.files; if (files) { var message = "fileSelected{session=" + sessionID + ",id=" + element.id + ",files=["; for(var i = 0; i < files.length; i++) { if (i > 0) { message += ","; } message += "_{name=\"" + files[i].name + "\",last-modified=" + files[i].lastModified + ",size=" + files[i].size + ",mime-type=\"" + files[i].type + "\"}"; } sendMessage(message + "]}"); } } function loadSelectedFile(elementId, index) { var element = document.getElementById(elementId); if (element) { var files = element.files; if (files && index >= 0 && index < files.length) { const reader = new FileReader(); reader.onload = function() { sendMessage("fileLoaded{session=" + sessionID + ",id=" + element.id + ",index=" + index + ",name=\"" + files[index].name + "\",last-modified=" + files[index].lastModified + ",size=" + files[index].size + ",mime-type=\"" + files[index].type + "\",data=`" + reader.result + "`}"); } reader.onerror = function(error) { sendMessage("fileLoadingError{session=" + sessionID + ",id=" + element.id + ",index=" + index + ",error=`" + error + "`}"); } reader.readAsDataURL(files[index]); } else { sendMessage("fileLoadingError{session=" + sessionID + ",id=" + element.id + ",index=" + index + ",error=`File not found`}"); } } else { sendMessage("fileLoadingError{session=" + sessionID + ",id=" + element.id + ",index=" + index + ",error=`Invalid FilePicker id`}"); } } function startResize(element, mx, my, event) { var view = element.parentNode; if (!view) { return; } var startX = event.clientX; var startY = event.clientY; var startWidth = view.offsetWidth var startHeight = view.offsetHeight document.addEventListener("mousemove", moveHandler, true); document.addEventListener("mouseup", upHandler, true); event.stopPropagation(); event.preventDefault(); function moveHandler(e) { if (mx != 0) { var width = startWidth + (e.clientX - startX) * mx; if (width <= 0) { width = 1; } view.style.width = width + "px"; sendMessage("widthChanged{session=" + sessionID + ",id=" + view.id + ",width=" + view.style.width + "}"); } if (my != 0) { var height = startHeight + (e.clientY - startY) * my; if (height <= 0) { height = 1; } view.style.height = height + "px"; sendMessage("heightChanged{session=" + sessionID + ",id=" + view.id + ",height=" + view.style.height + "}"); } event.stopPropagation(); event.preventDefault(); scanElementsSize(); } function upHandler (e) { document.removeEventListener("mouseup", upHandler, true); document.removeEventListener("mousemove", moveHandler, true); e.stopPropagation(); } } function transitionStartEvent(element, event) { var message = "transition-start-event{session=" + sessionID + ",id=" + element.id; if (event.propertyName) { message += ",property=" + event.propertyName } sendMessage(message + "}"); event.stopPropagation(); } function transitionRunEvent(element, event) { var message = "transition-run-event{session=" + sessionID + ",id=" + element.id; if (event.propertyName) { message += ",property=" + event.propertyName } sendMessage(message + "}"); event.stopPropagation(); } function transitionEndEvent(element, event) { var message = "transition-end-event{session=" + sessionID + ",id=" + element.id; if (event.propertyName) { message += ",property=" + event.propertyName } sendMessage(message + "}"); event.stopPropagation(); } function transitionCancelEvent(element, event) { var message = "transition-cancel-event{session=" + sessionID + ",id=" + element.id; if (event.propertyName) { message += ",property=" + event.propertyName } sendMessage(message + "}"); event.stopPropagation(); } function animationStartEvent(element, event) { var message = "animation-start-event{session=" + sessionID + ",id=" + element.id; if (event.animationName) { message += ",name=" + event.animationName } sendMessage(message + "}"); event.stopPropagation(); } function animationEndEvent(element, event) { var message = "animation-end-event{session=" + sessionID + ",id=" + element.id; if (event.animationName) { message += ",name=" + event.animationName } sendMessage(message + "}"); event.stopPropagation(); } function animationCancelEvent(element, event) { var message = "animation-cancel-event{session=" + sessionID + ",id=" + element.id; if (event.animationName) { message += ",name=" + event.animationName } sendMessage(message + "}"); event.stopPropagation(); } function animationIterationEvent(element, event) { var message = "animation-iteration-event{session=" + sessionID + ",id=" + element.id; if (event.animationName) { message += ",name=" + event.animationName } sendMessage(message + "}"); event.stopPropagation(); } function stackTransitionEndEvent(stackId, propertyName, event) { sendMessage("transition-end-event{session=" + sessionID + ",id=" + stackId + ",property=" + propertyName + "}"); event.stopPropagation(); } var images = new Map(); function loadImage(url) { var img = images.get(url); if (img != undefined) { return } img = new Image(); img.addEventListener("load", function() { images.set(url, img) var message = "imageLoaded{session=" + sessionID + ",url=\"" + url + "\""; if (img.naturalWidth) { message += ",width=" + img.naturalWidth } if (img.naturalHeight) { message += ",height=" + img.naturalHeight } sendMessage(message + "}") }, false); img.addEventListener("error", function(event) { var message = "imageError{session=" + sessionID + ",url=\"" + url + "\""; if (event && event.message) { var text = event.message.replace(new RegExp("\"", 'g'), "\\\"") message += ",message=\"" + text + "\""; } sendMessage(message + "}") }, false); img.src = url; } function loadInlineImage(url, content) { var img = images.get(url); if (img != undefined) { return } img = new Image(); img.addEventListener("load", function() { images.set(url, img) var message = "imageLoaded{session=" + sessionID + ",url=\"" + url + "\""; if (img.naturalWidth) { message += ",width=" + img.naturalWidth } if (img.naturalHeight) { message += ",height=" + img.naturalHeight } sendMessage(message + "}") }, false); img.addEventListener("error", function(event) { var message = "imageError{session=" + sessionID + ",url=\"" + url + "\""; if (event && event.message) { var text = event.message.replace(new RegExp("\"", 'g'), "\\\"") message += ",message=\"" + text + "\""; } sendMessage(message + "}") }, false); img.src = content; } function clickOutsidePopup(e) { sendMessage("clickOutsidePopup{session=" + sessionID + "}") e.stopPropagation(); } function clickClosePopup(element, e) { var popupId = element.getAttribute("data-popupId"); sendMessage("clickClosePopup{session=" + sessionID + ",id=" + popupId + "}") e.stopPropagation(); } function scrollTo(elementId, x, y) { var element = document.getElementById(elementId); if (element) { element.scrollTo(x, y); } } function scrollToStart(elementId) { var element = document.getElementById(elementId); if (element) { element.scrollTo(0, 0); } } function scrollToEnd(elementId) { var element = document.getElementById(elementId); if (element) { element.scrollTo(0, element.scrollHeight - element.offsetHeight); } } function focus(elementId) { var element = document.getElementById(elementId); if (element) { element.focus(); } } function blur(elementId) { var element = document.getElementById(elementId); if (element) { element.blur(); } } function blurCurrent() { if (document.activeElement != document.body) { document.activeElement.blur(); } } function playerEvent(element, tag) { //event.stopPropagation(); sendMessage(tag + "{session=" + sessionID + ",id=" + element.id + "}"); } function playerTimeUpdatedEvent(element) { var message = "time-update-event{session=" + sessionID + ",id=" + element.id + ",value="; if (element.currentTime) { message += element.currentTime; } else { message += "0"; } sendMessage(message + "}"); } function playerDurationChangedEvent(element) { var message = "duration-changed-event{session=" + sessionID + ",id=" + element.id + ",value="; if (element.duration) { message += element.duration; } else { message += "0"; } sendMessage(message + "}"); } function playerVolumeChangedEvent(element) { var message = "volume-changed-event{session=" + sessionID + ",id=" + element.id + ",value="; if (element.volume && !element.muted) { message += element.volume; } else { message += "0"; } sendMessage(message + "}"); } function playerRateChangedEvent(element) { var message = "rate-changed-event{session=" + sessionID + ",id=" + element.id + ",value="; if (element.playbackRate) { message += element.playbackRate; } else { message += "0"; } sendMessage(message + "}"); } function playerErrorEvent(element) { var message = "player-error-event{session=" + sessionID + ",id=" + element.id; if (element.error) { if (element.error.code) { message += ",code=" + element.error.code; } if (element.error.message) { message += ",message=`" + element.error.message + "`"; } } sendMessage(message + "}"); } function setMediaMuted(elementId, value) { var element = document.getElementById(elementId); if (element) { element.muted = value } } function mediaPlay(elementId) { var element = document.getElementById(elementId); if (element && element.play) { element.play() } } function mediaPause(elementId) { var element = document.getElementById(elementId); if (element && element.pause) { element.pause() } } function mediaSetSetCurrentTime(elementId, time) { var element = document.getElementById(elementId); if (element) { element.currentTime = time } } function mediaSetPlaybackRate(elementId, time) { var element = document.getElementById(elementId); if (element) { element.playbackRate = time } } function mediaSetVolume(elementId, volume) { var element = document.getElementById(elementId); if (element) { element.volume = volume } } function startDowndload(url, filename) { var element = document.getElementById("ruiDownloader"); if (element) { element.href = url; element.setAttribute("download", filename); element.click(); } } function setTitle(title) { document.title = title; } function setTitleColor(color) { var metas = document.getElementsByTagName('meta'); if (metas) { var item = metas.namedItem('theme-color'); if (item) { item.setAttribute('content', color) return } } var meta = document.createElement('meta'); meta.setAttribute('name', 'theme-color'); meta.setAttribute('content', color); document.getElementsByTagName('head')[0].appendChild(meta); } function openURL(url) { window.open(url, "_blank"); } function detailsEvent(element) { sendMessage("details-open{session=" + sessionID + ",id=" + element.id + ",open=" + (element.open ? "1}" : "0}")); } function getTableFocusedItemStyle(element) { return getStyleAttribute(element, "data-focusitemstyle", "ruiCurrentTableCellFocused"); } function getTableSelectedItemStyle(element) { return getStyleAttribute(element, "data-bluritemstyle", "ruiCurrentTableCell"); } function tableViewFocusEvent(element, event) { var currentId = element.getAttribute("data-current"); if (currentId) { var current = document.getElementById(currentId); if (current) { if (current.classList) { current.classList.remove(getTableSelectedItemStyle(element)); current.classList.add(getTableFocusedItemStyle(element)); } } } } function tableViewBlurEvent(element, event) { var currentId = element.getAttribute("data-current"); if (currentId) { var current = document.getElementById(currentId); if (current && current.classList) { current.classList.remove(getTableFocusedItemStyle(element)); current.classList.add(getTableSelectedItemStyle(element)); } } } function setTableCellCursor(element, row, column) { const cellID = element.id + "-" + row + "-" + column; var cell = document.getElementById(cellID); if (!cell || cell.getAttribute("data-disabled")) { return false; } const focusStyle = getTableFocusedItemStyle(element); const oldCellID = element.getAttribute("data-current"); if (oldCellID) { const oldCell = document.getElementById(oldCellID); if (oldCell && oldCell.classList) { oldCell.classList.remove(focusStyle); oldCell.classList.remove(getTableSelectedItemStyle(element)); } } cell.classList.add(focusStyle); element.setAttribute("data-current", cellID); if (cell.scrollIntoViewIfNeeded) { cell.scrollIntoViewIfNeeded() } else { cell.scrollIntoView({block: "nearest", inline: "nearest"}); } sendMessage("currentCell{session=" + sessionID + ",id=" + element.id + ",row=" + row + ",column=" + column + "}"); return true; } function moveTableCellCursor(element, row, column, dr, dc) { const rows = element.getAttribute("data-rows"); if (!rows) { return; } const columns = element.getAttribute("data-columns"); if (!columns) { return; } const rowCount = parseInt(rows); const columnCount = parseInt(columns); row += dr; column += dc; while (row >= 0 && row < rowCount && column >= 0 && column < columnCount) { if (setTableCellCursor(element, row, column)) { return; } else if (dr == 0) { var r2 = row - 1; while (r2 >= 0) { if (setTableCellCursor(element, r2, column)) { return; } r2--; } } else if (dc == 0) { var c2 = column - 1; while (c2 >= 0) { if (setTableCellCursor(element, row, c2)) { return; } c2--; } } row += dr; column += dc; } } function tableViewCellKeyDownEvent(element, event) { const key = getKey(event); if (!key) { return; } const currentId = element.getAttribute("data-current"); if (!currentId || currentId == "") { switch (key) { case "ArrowLeft": case "ArrowRight": case "ArrowDown": case "ArrowUp": case "Home": case "End": case "PageUp": case "PageDown": const rows = element.getAttribute("data-rows"); const columns = element.getAttribute("data-columns"); if (rows && columns) { const rowCount = parseInt(rows); const columnCount = parseInt(rows); row = 0; while (row < rowCount) { column = 0; while (columns < columnCount) { if (setTableCellCursor(element, row, column)) { event.stopPropagation(); event.preventDefault(); return; } column++; } row++; } } event.stopPropagation(); event.preventDefault(); break; } return; } const elements = currentId.split("-"); if (elements.length >= 3) { const row = parseInt(elements[1], 10) const column = parseInt(elements[2], 10) switch (key) { case " ": case "Enter": sendMessage("cellClick{session=" + sessionID + ",id=" + element.id + ",row=" + row + ",column=" + column + "}"); break; case "ArrowLeft": moveTableCellCursor(element, row, column, 0, -1) break; case "ArrowRight": moveTableCellCursor(element, row, column, 0, 1) break; case "ArrowDown": moveTableCellCursor(element, row, column, 1, 0) break; case "ArrowUp": moveTableCellCursor(element, row, column, -1, 0) break; case "Home": // TODO break; case "End": /*var newRow = rowCount-1; while (newRow > row) { if (setTableRowCursor(element, newRow)) { break; } newRow--; }*/ // TODO break; case "PageUp": // TODO break; case "PageDown": // TODO break; default: return; } event.stopPropagation(); event.preventDefault(); } else { element.setAttribute("data-current", ""); } } function setTableRowCursor(element, row) { const tableRowID = element.id + "-" + row; var tableRow = document.getElementById(tableRowID); if (!tableRow || tableRow.getAttribute("data-disabled")) { return false; } const focusStyle = getTableFocusedItemStyle(element); const oldRowID = element.getAttribute("data-current"); if (oldRowID) { const oldRow = document.getElementById(oldRowID); if (oldRow && oldRow.classList) { oldRow.classList.remove(focusStyle); oldRow.classList.remove(getTableSelectedItemStyle(element)); } } tableRow.classList.add(focusStyle); element.setAttribute("data-current", tableRowID); if (tableRow.scrollIntoViewIfNeeded) { tableRow.scrollIntoViewIfNeeded() } else { tableRow.scrollIntoView({block: "nearest", inline: "nearest"}); } sendMessage("currentRow{session=" + sessionID + ",id=" + element.id + ",row=" + row + "}"); return true; } function moveTableRowCursor(element, row, dr) { const rows = element.getAttribute("data-rows"); if (!rows) { return; } const rowCount = parseInt(rows); row += dr; while (row >= 0 && row < rowCount) { if (setTableRowCursor(element, row)) { return; } row += dr; } } function tableViewRowKeyDownEvent(element, event) { const key = getKey(event); if (key) { const currentId = element.getAttribute("data-current"); if (currentId) { const elements = currentId.split("-"); if (elements.length >= 2) { const row = parseInt(elements[1], 10); switch (key) { case " ": case "Enter": sendMessage("rowClick{session=" + sessionID + ",id=" + element.id + ",row=" + row + "}"); break; case "ArrowDown": moveTableRowCursor(element, row, 1) break; case "ArrowUp": moveTableRowCursor(element, row, -1) break; case "Home": var newRow = 0; while (newRow < row) { if (setTableRowCursor(element, newRow)) { break; } newRow++; } break; case "End": var newRow = rowCount-1; while (newRow > row) { if (setTableRowCursor(element, newRow)) { break; } newRow--; } break; case "PageUp": // TODO break; case "PageDown": // TODO break; default: return; } event.stopPropagation(); event.preventDefault(); return; } } switch (key) { case "ArrowLeft": case "ArrowRight": case "ArrowDown": case "ArrowUp": case "Home": case "End": case "PageUp": case "PageDown": const rows = element.getAttribute("data-rows"); if (rows) { const rowCount = parseInt(rows); row = 0; while (row < rowCount) { if (setTableRowCursor(element, row)) { break; } row++; } } break; default: return; } } event.stopPropagation(); event.preventDefault(); } function tableCellClickEvent(element, event) { event.preventDefault(); const elements = element.id.split("-"); if (elements.length < 3) { return } const tableID = elements[0]; const row = parseInt(elements[1], 10); const column = parseInt(elements[2], 10); const table = document.getElementById(tableID); if (table) { const selection = table.getAttribute("data-selection"); if (selection == "cell") { const currentID = table.getAttribute("data-current"); if (!currentID || currentID != element.ID) { setTableCellCursor(table, row, column) } } } sendMessage("cellClick{session=" + sessionID + ",id=" + tableID + ",row=" + row + ",column=" + column + "}"); } function tableRowClickEvent(element, event) { event.preventDefault(); const elements = element.id.split("-"); if (elements.length < 2) { return } const tableID = elements[0]; const row = parseInt(elements[1], 10); const table = document.getElementById(tableID); if (table) { const selection = table.getAttribute("data-selection"); if (selection == "row") { const currentID = table.getAttribute("data-current"); if (!currentID || currentID != element.ID) { setTableRowCursor(table, row) } } } sendMessage("rowClick{session=" + sessionID + ",id=" + tableID + ",row=" + row + "}"); } function imageLoaded(element, event) { var message = "imageViewLoaded{session=" + sessionID + ",id=" + element.id + ",natural-width=" + element.naturalWidth + ",natural-height=" + element.naturalHeight + ",current-src=\"" + element.currentSrc + "\"}"; sendMessage(message); scanElementsSize() } function imageError(element, event) { var message = "imageViewError{session=" + sessionID + ",id=" + element.id + "}"; sendMessage(message); } function canvasTextMetrics(answerID, elementId, font, text) { var w = 0; var ascent = 0; var descent = 0; var left = 0; var right = 0; const canvas = document.getElementById(elementId); if (canvas) { const ctx = canvas.getContext('2d'); if (ctx) { ctx.save() const dpr = window.devicePixelRatio || 1; ctx.scale(dpr, dpr); ctx.font = font; ctx.textBaseline = 'alphabetic'; ctx.textAlign = 'start'; var metrics = ctx.measureText(text) w = metrics.width; ascent = metrics.actualBoundingBoxAscent; descent = metrics.actualBoundingBoxDescent; left = metrics.actualBoundingBoxLeft; right = metrics.actualBoundingBoxRight; ctx.restore(); } } sendMessage('answer{answerID=' + answerID + ', width=' + w + ', ascent=' + ascent + ', descent=' + descent + ', left=' + left + ', right=' + right + '}'); } function getPropertyValue(answerID, elementId, name) { const element = document.getElementById(elementId); if (element && element[name]) { sendMessage('answer{answerID=' + answerID + ', value="' + element[name] + '"}') return } sendMessage('answer{answerID=' + answerID + ', value=""}') } function appendStyles(styles) { document.querySelector('style').textContent += styles } function getCanvasContext(elementId) { const canvas = document.getElementById(elementId) if (canvas) { const ctx = canvas.getContext('2d'); if (ctx) { const dpr = window.devicePixelRatio || 1; ctx.canvas.width = dpr * canvas.clientWidth; ctx.canvas.height = dpr * canvas.clientHeight; ctx.scale(dpr, dpr); return ctx; } } return null; }