| "use strict" |
| |
| /* Constants used at several places*/ |
| const messageBarPlaceHolder = "Type a message" |
| /* Constants used at several places*/ |
| // scrollDetectionThresh represents the number of pixels a user can scroll |
| // without disabling the automatic go-back-to-bottom when a new message is |
| // received |
| const scrollDetectionThresh = 200 |
| // printHistoryPart loads blocks of messages. Each block contains |
| // scrollBuffer messages |
| const scrollBuffer = 20 |
| // The first time a conversation is loaded, the lazy loading system makes |
| // sure at least initialScrollBufferFactor screens of messages are loaded |
| const initialScrollBufferFactor = 3 |
| // Some signal like the onscrolled signals are debounced so that the their |
| // assigned function isn't fired too often |
| const debounceTime = 200 |
| |
| /* Buffers */ |
| // current index in the history buffer |
| var historyBufferIndex = 0 |
| // buffer containing the conversation's messages |
| var historyBuffer = [] |
| |
| /* We retrieve refs to the most used navbar and message bar elements for efficiency purposes */ |
| /* NOTE: always use getElementById when possible, way more efficient */ |
| const messageBar = document.getElementById("sendMessage") |
| const messageBarInput = document.getElementById("message") |
| const invitation = document.getElementById("invitation") |
| const inviteImage = document.getElementById("invite_image") |
| const invitationText = document.getElementById("text") |
| var messages = document.getElementById("messages") |
| |
| /* States: allows us to avoid re-doing something if it isn't meaningful */ |
| var displayLinksEnabled = true |
| var hoverBackButtonAllowed = true |
| var hasInvitation = false |
| var isTemporary = false |
| var isBanned = false |
| var isAccountEnabled = true |
| var isInitialLoading = false |
| var imagesLoadingCounter = 0 |
| var canLazyLoad = false; |
| |
| /* Set the default target to _self and handle with QWebEnginePage::acceptNavigationRequest */ |
| var linkifyOptions = { |
| attributes: null, |
| className: 'linkified', |
| defaultProtocol: 'http', |
| events: null, |
| format: function (value, type) { |
| return value; |
| }, |
| formatHref: function (href, type) { |
| return href; |
| }, |
| ignoreTags: [], |
| nl2br: false, |
| tagName: 'a', |
| target: { |
| url: '_self' |
| }, |
| validate: true |
| }; |
| |
| new QWebChannel(qt.webChannelTransport, function(channel) { |
| window.jsbridge = channel.objects.jsbridge; |
| }); |
| |
| function onScrolled_() { |
| if (!canLazyLoad) |
| return; |
| if (messages.scrollTop == 0 && historyBufferIndex != historyBuffer.length) { |
| /* At the top and there's something to print */ |
| printHistoryPart(messages, messages.scrollHeight) |
| } |
| } |
| |
| const debounce = (fn, time) => { |
| let timeout |
| |
| return function() { |
| const functionCall = () => fn.apply(this, arguments) |
| |
| clearTimeout(timeout) |
| timeout = setTimeout(functionCall, time) |
| } |
| } |
| |
| /* exported onScrolled */ |
| var onScrolled = debounce(onScrolled_, debounceTime) |
| |
| /** |
| * Generic wrapper. Execute passed function keeping scroll position identical. |
| * |
| * @param func function to execute |
| * @param args parameters as array |
| */ |
| function exec_keeping_scroll_position(func, args) { |
| var atEnd = messages.scrollTop >= messages.scrollHeight - messages.clientHeight - scrollDetectionThresh |
| func(...args) |
| if (atEnd) { |
| messages.scrollTop = messages.scrollHeight |
| } |
| } |
| |
| /** |
| * Reset scrollbar at a given position. |
| * @param scroll position at which the scrollbar should be set. |
| * Here position means the number of pixels scrolled, |
| * i.e. scroll = 0 resets the scrollbar at the bottom. |
| */ |
| function back_to_scroll(scroll) { |
| messages.scrollTop = messages.scrollHeight - scroll |
| } |
| |
| /** |
| * Reset scrollbar at bottom. |
| */ |
| function back_to_bottom() { |
| back_to_scroll(0) |
| } |
| |
| /** |
| * Hide or show invitation. |
| * |
| * Invitation is hidden if no contactAlias/invalid alias is passed. |
| * Otherwise, invitation div is updated. |
| * |
| * @param contactAlias |
| * @param contactId |
| */ |
| /* exported showInvitation */ |
| function showInvitation(contactAlias, contactId) { |
| if (!contactAlias) { |
| if (hasInvitation) { |
| hasInvitation = false |
| invitation.style.visibility = "" |
| } |
| } else { |
| if (!inviteImage.classList.contains('invite_sender_image')) { |
| inviteImage.classList.add('invite_sender_image'); |
| } |
| if (!inviteImage.classList.contains(`invite_sender_image_${contactId}`)) { |
| inviteImage.classList.add(`invite_sender_image_${contactId}`); |
| } |
| hasInvitation = true |
| invitationText.innerHTML = "<b>" + contactAlias + " is not in your contacts</b><br/>" |
| + "Note: you can automatically accept this invitation by sending a message." |
| invitation.style.visibility = "visible" |
| } |
| } |
| |
| /* exported setDisplayLinks */ |
| function setDisplayLinks(display) { |
| displayLinksEnabled = display |
| } |
| |
| /** |
| * This event handler dynamically resizes the message bar depending on the amount of |
| * text entered, while adjusting the body paddings so that that the message bar doesn't |
| * overlap messages when it grows. |
| */ |
| /* exported grow_text_area */ |
| function grow_text_area() { |
| exec_keeping_scroll_position(function(){ |
| var old_height = window.getComputedStyle(messageBar).height |
| messageBarInput.style.height = "auto" /* <-- necessary, no clue why */ |
| messageBarInput.style.height = messageBarInput.scrollHeight + "px" |
| var new_height = window.getComputedStyle(messageBar).height |
| |
| var msgbar_size = window.getComputedStyle(document.body).getPropertyValue("--messagebar-size") |
| var total_size = parseInt(msgbar_size) + parseInt(new_height) - parseInt(old_height) |
| |
| document.body.style.setProperty("--messagebar-size", total_size.toString() + "px") |
| }, []) |
| } |
| |
| /** |
| * This event handler processes keydown events from the message bar. When pressed key is |
| * the enter key, send the message unless shift or control was pressed too. |
| * |
| * @param key the pressed key |
| */ |
| /* exported process_messagebar_keydown */ |
| function process_messagebar_keydown(key) { |
| key = key || event |
| var map = {} |
| map[key.keyCode] = key.type == "keydown" |
| if (key.ctrlKey && map[13]) { |
| messageBarInput.value += "\n" |
| } |
| if (key.ctrlKey || key.shiftKey) { |
| return true |
| } |
| if (map[13]) { |
| sendMessage() |
| key.preventDefault() |
| } |
| return true |
| } |
| |
| /** |
| * Disable or enable textarea. |
| * |
| * @param isDisabled whether message bar should be enabled or disabled |
| */ |
| /* exported disableSendMessage */ |
| function disableSendMessage(isDisabled) |
| { |
| messageBarInput.disabled = isDisabled |
| } |
| |
| /* |
| * Update timestamps messages. |
| */ |
| function updateView() { |
| updateTimestamps(messages) |
| } |
| |
| setInterval(updateView, 60000) |
| |
| /** |
| * Transform a date to a string group like "1 hour ago". |
| * |
| * @param date |
| */ |
| function formatDate(date) { |
| const seconds = Math.floor((new Date() - date) / 1000) |
| var interval = Math.floor(seconds / (3600 * 24)) |
| if (interval > 5) { |
| return date.toLocaleDateString() |
| } |
| if (interval > 1) { |
| return interval + " days ago" |
| } |
| if (interval === 1) { |
| return interval + " day ago" |
| } |
| interval = Math.floor(seconds / 3600) |
| if (interval > 1) { |
| return interval + " hours ago" |
| } |
| if (interval === 1) { |
| return interval + " hour ago" |
| } |
| interval = Math.floor(seconds / 60) |
| if (interval > 1) { |
| return interval + " minutes ago" |
| } |
| return "just now" |
| } |
| |
| /** |
| * Send content of message bar |
| */ |
| function sendMessage() |
| { |
| var message = messageBarInput.value |
| if (message.length > 0) { |
| messageBarInput.value = "" |
| window.jsbridge.sendMessage(message) |
| } |
| } |
| |
| /* exported acceptInvitation */ |
| function acceptInvitation() { |
| window.jsbridge.acceptInvitation() |
| } |
| /* exported refuseInvitation */ |
| function refuseInvitation() { |
| window.jsbridge.refuseInvitation() |
| } |
| /* exported blockConversation */ |
| function blockConversation() { |
| window.jsbridge.blockConversation() |
| } |
| |
| /* exported sendFile */ |
| function sendFile() |
| { |
| window.jsbridge.sendFile(); |
| } |
| |
| /** |
| * Clear all messages. |
| */ |
| /* exported clearMessages */ |
| function clearMessages() |
| { |
| while (messages.firstChild) { |
| messages.removeChild(messages.firstChild) |
| } |
| canLazyLoad = false |
| |
| window.jsbridge.messagesCleared() |
| } |
| |
| /** |
| * Convert text to HTML. |
| */ |
| function escapeHtml(html) |
| { |
| var text = document.createTextNode(html) |
| var div = document.createElement("div") |
| div.appendChild(text) |
| return div.innerHTML |
| } |
| |
| /** |
| * Get the youtube video id from a URL. |
| * @param url |
| */ |
| function youtube_id(url) { |
| const regExp = /^.*(youtu\.be\/|v\/|\/u\/w|embed\/|watch\?v=|&v=)([^#&?]*).*/ |
| const match = url.match(regExp) |
| return (match && match[2].length == 11) ? match[2] : null |
| } |
| |
| /** |
| * Returns HTML message from the message text, cleaned and linkified. |
| * @param message_text |
| */ |
| function getMessageHtml(message_text) |
| { |
| const escaped_message = escapeHtml(message_text) |
| |
| var linkified_message = linkifyHtml(escaped_message, linkifyOptions) // eslint-disable-line no-undef |
| |
| const textPart = document.createElement("pre") |
| textPart.innerHTML = linkified_message |
| |
| return textPart.outerHTML |
| } |
| |
| /** |
| * Returns the message status, formatted for display |
| * @param message_delivery_status |
| */ |
| /* exported getMessageDeliveryStatusText */ |
| function getMessageDeliveryStatusText(message_delivery_status) |
| { |
| var formatted_delivery_status = message_delivery_status |
| |
| switch(message_delivery_status) |
| { |
| case "sending": |
| case "ongoing": |
| formatted_delivery_status = "Sending<svg overflow='visible' viewBox='0 -2 16 14' height='16px' width='16px'><circle class='status_circle anim-first' cx='4' cy='12' r='1'/><circle class='status_circle anim-second' cx='8' cy='12' r='1'/><circle class='status_circle anim-third' cx='12' cy='12' r='1'/></svg>" |
| break |
| case "failure": |
| formatted_delivery_status = "Failure <svg overflow='visible' viewBox='0 -2 16 14' height='16px' width='16px'><path class='status-x x-first' stroke='#AA0000' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' fill='none' d='M4,4 L12,12'/><path class='status-x x-second' stroke='#AA0000' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' fill='none' d='M12,4 L4,12'/></svg>" |
| break |
| case "sent": |
| case "finished": |
| case "unknown": |
| case "read": |
| formatted_delivery_status = "" |
| break |
| default: |
| break |
| } |
| |
| return formatted_delivery_status |
| } |
| |
| /** |
| * Returns the message date, formatted for display |
| */ |
| function getMessageTimestampText(message_timestamp, custom_format) |
| { |
| const date = new Date(1000 * message_timestamp) |
| if(custom_format) { |
| return formatDate(date) |
| } else { |
| return date.toLocaleString() |
| } |
| } |
| |
| /** |
| * Update timestamps. |
| * @param message_div |
| */ |
| function updateTimestamps(messages_div) { |
| const timestamps = messages_div.getElementsByClassName("timestamp") |
| for (var c = timestamps.length - 1; c >= 0 ; --c) { |
| var timestamp = timestamps.item(c) |
| timestamp.innerHTML = getMessageTimestampText(timestamp.getAttribute("message_timestamp"), true) |
| } |
| } |
| |
| /** |
| * Convert a value in filesize |
| */ |
| function humanFileSize(bytes) { |
| var thresh = 1024 |
| if(Math.abs(bytes) < thresh) { |
| return bytes + " B" |
| } |
| var units = ["kB","MB","GB","TB","PB","EB","ZB","YB"] |
| var u = -1 |
| do { |
| bytes /= thresh |
| ++u |
| } while(Math.abs(bytes) >= thresh && u < units.length - 1) |
| return bytes.toFixed(1)+" "+units[u] |
| } |
| |
| /** |
| * Hide or show add to conversations/calls whether the account is enabled |
| * @param accountEnabled true if account is enabled |
| */ |
| function hideControls(accountEnabled) { |
| if (!accountEnabled) { |
| callButtons.display = "none" |
| } else { |
| callButtons.display = "" |
| } |
| } |
| |
| /** |
| * Change the value of the progress bar. |
| * |
| * @param progress_bar |
| * @param message_object |
| */ |
| function updateProgressBar(progress_bar, message_object) { |
| var delivery_status = message_object["delivery_status"] |
| if ("progress" in message_object && !isErrorStatus(delivery_status) && message_object["progress"] !== 100) { |
| var progress_percent = (100 * message_object["progress"] / message_object["totalSize"]) |
| if (progress_percent !== 100) |
| progress_bar.childNodes[0].setAttribute("style", "width: " + progress_percent + "%") |
| else |
| progress_bar.setAttribute("style", "display: none") |
| } else |
| progress_bar.setAttribute("style", "display: none") |
| } |
| |
| /** |
| * Check if a status is an error status |
| * @param |
| */ |
| function isErrorStatus(status) { |
| return (status === "failure" |
| || status === "awaiting peer timeout" |
| || status === "canceled" |
| || status === "unjoinable peer") |
| } |
| |
| /** |
| * Build a new file interaction |
| * @param message_id |
| */ |
| function fileInteraction(message_id) { |
| var message_wrapper = document.createElement("div") |
| message_wrapper.setAttribute("class", "message_wrapper") |
| |
| var transfer_info_wrapper = document.createElement("div") |
| transfer_info_wrapper.setAttribute("class", "transfer_info_wrapper") |
| message_wrapper.appendChild(transfer_info_wrapper) |
| |
| /* Buttons at the left for status information or accept/refuse actions. |
| The text is bold and clickable. */ |
| var left_buttons = document.createElement("div") |
| left_buttons.setAttribute("class", "left_buttons") |
| transfer_info_wrapper.appendChild(left_buttons) |
| |
| var full_div = document.createElement("div") |
| full_div.setAttribute("class", "full") |
| full_div.style.visibility = "hidden" |
| full_div.style.display = "none" |
| |
| var filename_wrapper = document.createElement("div") |
| filename_wrapper.setAttribute("class", "truncate-ellipsis") |
| |
| var message_text = document.createElement("span") |
| message_text.setAttribute("class", "filename") |
| filename_wrapper.appendChild(message_text) |
| |
| // And information like size or error message. |
| var informations_div = document.createElement("div") |
| informations_div.setAttribute("class", "informations") |
| |
| var text_div = document.createElement("div") |
| text_div.setAttribute("class", "text") |
| text_div.addEventListener("click", function () { |
| // ask ring to open the file |
| const filename = document.querySelector("#message_" + message_id + " .full").innerText |
| window.jsbridge.openFile(filename); |
| }) |
| |
| text_div.appendChild(filename_wrapper) |
| text_div.appendChild(full_div) |
| text_div.appendChild(informations_div) |
| transfer_info_wrapper.appendChild(text_div) |
| |
| // And finally, a progress bar |
| var message_transfer_progress_bar = document.createElement("span") |
| message_transfer_progress_bar.setAttribute("class", "message_progress_bar") |
| |
| var message_transfer_progress_completion = document.createElement("span") |
| message_transfer_progress_bar.appendChild(message_transfer_progress_completion) |
| message_wrapper.appendChild(message_transfer_progress_bar) |
| |
| const internal_mes_wrapper = document.createElement("div") |
| internal_mes_wrapper.setAttribute("class", "internal_mes_wrapper") |
| internal_mes_wrapper.appendChild(message_wrapper) |
| |
| return internal_mes_wrapper |
| } |
| |
| /** |
| * Build information text for passed file interaction message object |
| * |
| * @param message_object message object containing file interaction info |
| */ |
| function buildFileInformationText(message_object) { |
| var informations_txt = getMessageTimestampText(message_object["timestamp"], true) |
| if (message_object["totalSize"] && message_object["progress"]) { |
| if (message_object["delivery_status"] === "finished") { |
| informations_txt += " - " + humanFileSize(message_object["totalSize"]) |
| } else { |
| informations_txt += " - " + humanFileSize(message_object["progress"]) |
| + " / " + humanFileSize(message_object["totalSize"]) |
| } |
| } |
| |
| return informations_txt + " - " + message_object["delivery_status"] |
| } |
| |
| /** |
| * Update a file interaction (icons + filename + status + progress bar) |
| * |
| * @param message_div the message to update |
| * @param message_object new informations |
| * @param forceTypeToFile |
| */ |
| function updateFileInteraction(message_div, message_object, forceTypeToFile = false) { |
| if (!message_div.querySelector(".informations")) return // media |
| |
| var acceptSvg = "<svg height=\"24\" viewBox=\"0 0 24 24\" width=\"24\" xmlns=\"http://www.w3.org/2000/svg\"><path d=\"M0 0h24v24H0z\" fill=\"none\"/><path d=\"M9 16.2L4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4L9 16.2z\"/></svg>", |
| refuseSvg = "<svg height=\"24\" viewBox=\"0 0 24 24\" width=\"24\" xmlns=\"http://www.w3.org/2000/svg\"><path d=\"M19 6.41L17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12z\"/><path d=\"M0 0h24v24H0z\" fill=\"none\"/></svg>", |
| fileSvg = "<svg fill=\"#000000\" height=\"24\" viewBox=\"0 0 24 24\" width=\"24\" xmlns=\"http://www.w3.org/2000/svg\"><path d=\"M16.5 6v11.5c0 2.21-1.79 4-4 4s-4-1.79-4-4V5c0-1.38 1.12-2.5 2.5-2.5s2.5 1.12 2.5 2.5v10.5c0 .55-.45 1-1 1s-1-.45-1-1V6H10v9.5c0 1.38 1.12 2.5 2.5 2.5s2.5-1.12 2.5-2.5V5c0-2.21-1.79-4-4-4S7 2.79 7 5v12.5c0 3.04 2.46 5.5 5.5 5.5s5.5-2.46 5.5-5.5V6h-1.5z\"/><path d=\"M0 0h24v24H0z\" fill=\"none\"/></svg>", |
| warningSvg = "<svg fill=\"#000000\" height=\"24\" viewBox=\"0 0 24 24\" width=\"24\" xmlns=\"http://www.w3.org/2000/svg\"><path d=\"M0 0h24v24H0z\" fill=\"none\"/><path d=\"M1 21h22L12 2 1 21zm12-3h-2v-2h2v2zm0-4h-2v-4h2v4z\"/></svg>" |
| var message_delivery_status = message_object["delivery_status"] |
| var message_direction = message_object["direction"] |
| var message_id = message_object["id"] |
| var message_text = message_object["text"] |
| |
| if (isImage(message_text) && message_delivery_status === "finished" && displayLinksEnabled && !forceTypeToFile) { |
| // Replace the old wrapper by the downloaded image |
| var old_wrapper = message_div.querySelector(".internal_mes_wrapper") |
| if (old_wrapper) { |
| old_wrapper.parentNode.removeChild(old_wrapper) |
| } |
| |
| var errorHandler = function() { |
| var wrapper = message_div.querySelector(".internal_mes_wrapper") |
| var message_wrapper = message_div.querySelector(".message_wrapper") |
| if (message_wrapper) { |
| message_wrapper.parentNode.removeChild(message_wrapper) |
| } |
| |
| var media_wrapper = message_div.querySelector(".media_wrapper") |
| if (media_wrapper) { |
| media_wrapper.parentNode.removeChild(media_wrapper) |
| } |
| |
| var new_interaction = fileInteraction(message_id) |
| var new_message_wrapper = new_interaction.querySelector(".message_wrapper") |
| wrapper.prepend(new_message_wrapper) |
| updateFileInteraction(message_div, message_object, true) |
| } |
| |
| var new_wrapper = mediaInteraction(message_id, message_text, null, errorHandler) |
| message_div.insertBefore(new_wrapper, message_div.querySelector(".menu_interaction")) |
| message_div.querySelector("img").id = message_id |
| message_div.querySelector("img").msg_obj = message_object |
| return |
| } |
| |
| // Set informations text |
| var informations_div = message_div.querySelector(".informations") |
| informations_div.innerText = buildFileInformationText(message_object) |
| |
| // Update flat buttons |
| var left_buttons = message_div.querySelector(".left_buttons") |
| left_buttons.innerHTML = "" |
| if (message_delivery_status === "awaiting peer" || |
| message_delivery_status === "awaiting host" || |
| message_delivery_status.indexOf("ongoing") === 0) { |
| |
| if (message_direction === "in" && message_delivery_status.indexOf("ongoing") !== 0) { |
| // add buttons to accept or refuse a call. |
| var accept_button = document.createElement("div") |
| accept_button.innerHTML = acceptSvg |
| accept_button.setAttribute("title", "Accept") |
| accept_button.setAttribute("class", "flat-button accept") |
| accept_button.onclick = function() { |
| window.jsbridge.acceptFile(message_id); |
| } |
| left_buttons.appendChild(accept_button) |
| } |
| |
| var refuse_button = document.createElement("div") |
| refuse_button.innerHTML = refuseSvg |
| refuse_button.setAttribute("title", "Refuse") |
| refuse_button.setAttribute("class", "flat-button refuse") |
| refuse_button.onclick = function() { |
| window.jsbridge.refuseFile(message_id); |
| } |
| left_buttons.appendChild(refuse_button) |
| } else { |
| var status_button = document.createElement("div") |
| var statusFile = fileSvg |
| if (isErrorStatus(message_delivery_status)) |
| statusFile = warningSvg |
| status_button.innerHTML = statusFile |
| status_button.setAttribute("class", "flat-button") |
| left_buttons.appendChild(status_button) |
| } |
| |
| message_div.querySelector(".full").innerText = message_text |
| message_div.querySelector(".filename").innerText = message_text.split("/").pop() |
| updateProgressBar(message_div.querySelector(".message_progress_bar"), message_object) |
| } |
| |
| /** |
| * Return if a file is an image |
| * @param file |
| */ |
| function isImage(file) { |
| return file.toLowerCase().match(/\.(jpeg|jpg|gif|png)$/) !== null |
| } |
| |
| /** |
| * Return if a file is a youtube video |
| * @param file |
| */ |
| function isVideo(file) { |
| const availableProtocols = ["http:", "https:"] |
| const videoHostname = ["youtube.com", "www.youtube.com", "youtu.be"] |
| const urlParser = document.createElement("a") |
| urlParser.href = file |
| return (availableProtocols.includes(urlParser.protocol) && videoHostname.includes(urlParser.hostname)) |
| } |
| |
| /** |
| * Build a container for passed video thumbnail |
| * @param linkElt video thumbnail div |
| */ |
| function buildVideoContainer(linkElt) { |
| const containerElt = document.createElement("div") |
| containerElt.setAttribute("class", "containerVideo") |
| const playDiv = document.createElement("div") |
| playDiv.setAttribute("class", "playVideo") |
| playDiv.innerHTML = "<svg fill=\"#ffffff\" viewBox=\"0 0 24 24\" xmlns=\"http://www.w3.org/2000/svg\">\ |
| <path d=\"M8 5v14l11-7z\"/>\ |
| <path d=\"M0 0h24v24H0z\" fill=\"none\"/>\ |
| </svg>" |
| linkElt.appendChild(playDiv) |
| containerElt.appendChild(linkElt) |
| |
| return containerElt |
| } |
| |
| /** |
| * Try to show an image or a video link (youtube for now) |
| * @param message_id |
| * @param link to show |
| * @param ytid if it's a youtube video |
| * @param errorHandler the new media's onerror field will be set to this function |
| */ |
| function mediaInteraction(message_id, link, ytid, errorHandler) { |
| /* TODO promise? |
| Try to display images. */ |
| const media_wrapper = document.createElement("div") |
| media_wrapper.setAttribute("class", "media_wrapper") |
| const linkElt = document.createElement("a") |
| linkElt.href = link |
| linkElt.style.textDecoration = "none" |
| linkElt.style.border = "none" |
| const imageElt = document.createElement("img") |
| |
| imageElt.src = ytid ? `http://img.youtube.com/vi/${ytid}/0.jpg` : link |
| |
| /* Note, here, we don't check the size of the image. |
| in the future, we can check the content-type and content-length with a request |
| and maybe disable svg */ |
| |
| if (isInitialLoading) { |
| /* During initial load, make sure the scrollbar stays at the bottom. |
| Also, the final scrollHeight is only known after the last image was |
| loaded. We want to display a specific number of messages screens so |
| we have to set up a callback (on_image_load_finished) which will |
| check on that and reschedule a new display batch if not enough |
| messages have been loaded in the DOM. */ |
| imagesLoadingCounter++ |
| imageElt.onload = function() { |
| back_to_bottom() |
| on_image_load_finished() |
| } |
| |
| if (errorHandler) { |
| imageElt.onerror = function() { |
| errorHandler() |
| back_to_bottom() |
| on_image_load_finished() |
| } |
| } |
| } else if (messages.scrollTop >= messages.scrollHeight - messages.clientHeight - scrollDetectionThresh) { |
| /* Keep the scrollbar at the bottom. Images are loaded asynchronously and |
| the scrollbar position is changed each time an image is loaded and displayed. |
| In order to make sure the scrollbar stays at the bottom, reset scrollbar |
| position each time an image was loaded. */ |
| imageElt.onload = back_to_bottom |
| |
| if (errorHandler) { |
| imageElt.onerror = function() { |
| errorHandler() |
| back_to_bottom() |
| } |
| } |
| } else if (errorHandler) { |
| imageElt.onerror = errorHandler |
| } |
| |
| linkElt.appendChild(imageElt) |
| |
| if (ytid) { |
| media_wrapper.appendChild(buildVideoContainer(linkElt)) |
| } else { |
| media_wrapper.appendChild(linkElt) |
| } |
| |
| const internal_mes_wrapper = document.createElement("div") |
| internal_mes_wrapper.setAttribute("class", "internal_mes_wrapper") |
| internal_mes_wrapper.appendChild(media_wrapper) |
| |
| return internal_mes_wrapper |
| } |
| |
| /** |
| * Build a new text interaction |
| * @param message_id |
| * @param htmlText the DOM to show |
| */ |
| function textInteraction(message_id, htmlText) { |
| const message_wrapper = document.createElement("div") |
| message_wrapper.setAttribute("class", "message_wrapper") |
| var message_text = document.createElement("div") |
| message_text.setAttribute("class", "message_text") |
| message_text.innerHTML = htmlText |
| message_wrapper.appendChild(message_text) |
| // TODO STATUS |
| |
| const internal_mes_wrapper = document.createElement("div") |
| internal_mes_wrapper.setAttribute("class", "internal_mes_wrapper") |
| internal_mes_wrapper.appendChild(message_wrapper) |
| |
| return internal_mes_wrapper |
| } |
| |
| /** |
| * Update a text interaction (text) |
| * @param message_div the message to update |
| * @param delivery_status the status of the message |
| */ |
| function updateTextInteraction(message_div, delivery_status) { |
| if (!message_div.querySelector(".message_text")) return // media |
| var sending = message_div.querySelector(".sending") |
| switch(delivery_status) |
| { |
| case "ongoing": |
| case "sending": |
| if (!sending) { |
| sending = document.createElement("div") |
| sending.setAttribute("class", "sending") |
| sending.innerHTML = "<svg overflow=\"hidden\" viewBox=\"0 -2 16 14\" height=\"16px\" width=\"16px\"><circle class=\"status_circle anim-first\" cx=\"4\" cy=\"12\" r=\"1\"/><circle class=\"status_circle anim-second\" cx=\"8\" cy=\"12\" r=\"1\"/><circle class=\"status_circle anim-third\" cx=\"12\" cy=\"12\" r=\"1\"/></svg>" |
| // add sending animation to message; |
| message_div.insertBefore(sending, message_div.querySelector(".menu_interaction")) |
| } |
| message_div.querySelector(".message_text").style.color = "#888" |
| break |
| case "failure": |
| // change text color to red |
| message_div.querySelector(".message_text").color = "#000" |
| var failure_div = message_div.querySelector(".failure") |
| if (!failure_div) { |
| failure_div = document.createElement("div") |
| failure_div.setAttribute("class", "failure") |
| failure_div.innerHTML = "<svg overflow=\"visible\" viewBox=\"0 -2 16 14\" height=\"16px\" width=\"16px\"><path class=\"status-x x-first\" stroke=\"#AA0000\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"3\" fill=\"none\" d=\"M4,4 L12,12\"/><path class=\"status-x x-second\" stroke=\"#AA0000\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"3\" fill=\"none\" d=\"M12,4 L4,12\"/></svg>" |
| // add failure animation to message |
| message_div.insertBefore(failure_div, message_div.querySelector(".menu_interaction")) |
| } |
| message_div.querySelector(".message_text").style.color = "#000" |
| if (sending) sending.style.display = "none" |
| break |
| case "sent": |
| case "finished": |
| case "unknown": |
| case "read": |
| // change text color to black |
| message_div.querySelector(".message_text").style.color = "#000" |
| if (sending) sending.style.display = "none" |
| break |
| default: |
| break |
| } |
| } |
| |
| /** |
| * Build a new interaction (call or contact) |
| */ |
| function actionInteraction() { |
| var message_wrapper = document.createElement("div") |
| message_wrapper.setAttribute("class", "message_wrapper") |
| |
| // A file interaction contains buttons at the left of the interaction |
| // for the status or accept/refuse buttons |
| var left_buttons = document.createElement("div") |
| left_buttons.setAttribute("class", "left_buttons") |
| message_wrapper.appendChild(left_buttons) |
| // Also contains a bold clickable text |
| var text_div = document.createElement("div") |
| text_div.setAttribute("class", "text") |
| message_wrapper.appendChild(text_div) |
| return message_wrapper |
| } |
| |
| /** |
| * Update a call interaction (icon + text) |
| * @param message_div the message to update |
| * @param message_object new informations |
| */ |
| function updateCallInteraction(message_div, message_object) { |
| const outgoingCall = "<svg fill=\"#219d55\" height=\"24\" viewBox=\"0 0 24 24\" width=\"24\" xmlns=\"http://www.w3.org/2000/svg\"><path d=\"M0 0h24v24H0z\" fill=\"none\"/><path d=\"M9 5v2h6.59L4 18.59 5.41 20 17 8.41V15h2V5z\"/></svg>" |
| const callMissed = "<svg fill=\"#dc2719\" height=\"24\" viewBox=\"0 0 24 24\" width=\"24\" xmlns=\"http://www.w3.org/2000/svg\"><path d=\"M0 0h24v24H0z\" fill=\"none\"/><path d=\"M19.59 7L12 14.59 6.41 9H11V7H3v8h2v-4.59l7 7 9-9z\"/></svg>" |
| const outgoingMissed = "<svg fill=\"#dc2719\" height=\"24\" viewBox=\"0 0 24 24\" width=\"24\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><defs><path d=\"M24 24H0V0h24v24z\" id=\"a\"/></defs><clipPath id=\"b\"><use overflow=\"visible\" xlink:href=\"#a\"/></clipPath><path clip-path=\"url(#b)\" d=\"M3 8.41l9 9 7-7V15h2V7h-8v2h4.59L12 14.59 4.41 7 3 8.41z\"/></svg>" |
| const callReceived = "<svg fill=\"#219d55\" height=\"24\" viewBox=\"0 0 24 24\" width=\"24\" xmlns=\"http://www.w3.org/2000/svg\"><path d=\"M0 0h24v24H0z\" fill=\"none\"/><path d=\"M20 5.41L18.59 4 7 15.59V9H5v10h10v-2H8.41z\"/></svg>" |
| |
| const message_text = message_object["text"] |
| const message_direction = (message_text.toLowerCase().indexOf("incoming") !== -1) ? "in" : "out" |
| const missed = message_text.indexOf("Missed") !== -1 |
| |
| message_div.querySelector(".text").innerText = message_text.substring(2) |
| |
| var left_buttons = message_div.querySelector(".left_buttons") |
| left_buttons.innerHTML = "" |
| var status_button = document.createElement("div") |
| var statusFile = "" |
| if (missed) |
| statusFile = (message_direction === "in") ? callMissed : outgoingMissed |
| else |
| statusFile = (message_direction === "in") ? callReceived : outgoingCall |
| status_button.innerHTML = statusFile |
| status_button.setAttribute("class", "flat-button") |
| left_buttons.appendChild(status_button) |
| } |
| |
| /** |
| * Update a contact interaction (icon + text) |
| * @param message_div the message to update |
| * @param message_object new informations |
| */ |
| function updateContactInteraction(message_div, message_object) { |
| const message_text = message_object["text"] |
| |
| message_div.querySelector(".text").innerText = message_text |
| |
| var left_buttons = message_div.querySelector(".left_buttons") |
| left_buttons.innerHTML = "" |
| var status_button = document.createElement("div") |
| status_button.innerHTML = "<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"24\" height=\"24\" viewBox=\"0 0 24 24\">\ |
| <path d=\"M12 12c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm0 2c-2.67 0-8 1.34-8 4v2h16v-2c0-2.66-5.33-4-8-4z\"/>\ |
| <path d=\"M0 0h24v24H0z\" fill=\"none\"/></svg>" |
| status_button.setAttribute("class", "flat-button") |
| left_buttons.appendChild(status_button) |
| } |
| |
| /** |
| * Remove an interaction from the conversation |
| * @param interaction_id |
| */ |
| /* exported removeInteraction */ |
| function removeInteraction(interaction_id) { |
| var interaction = document.getElementById(`message_${interaction_id}`) |
| if (!interaction) { |
| return |
| } |
| |
| if (interaction.previousSibling) { |
| /* if element was the most recently received message, make sure the |
| last_message property is given away to the previous sibling */ |
| if (interaction.classList.contains("last_message")) { |
| interaction.previousSibling.classList.add("last_message") |
| } |
| |
| /* same for timestamp */ |
| var timestamp = interaction.querySelector(".timestamp") |
| var previousTimeStamp = interaction.previousSibling.querySelector(".timestamp") |
| if (timestamp && !previousTimeStamp) { |
| interaction.previousSibling.querySelector(".internal_mes_wrapper").appendChild(timestamp) |
| } |
| } |
| |
| var firstMessage = getPreviousInteraction(interaction) |
| var secondMessage = getNextInteraction(interaction) |
| |
| updateSequencing(firstMessage, secondMessage) |
| |
| interaction.parentNode.removeChild(interaction) |
| } |
| |
| /** |
| * Build message dropdown |
| * @return a message dropdown for passed message id |
| */ |
| function buildMessageDropdown(message_id) { |
| const menu_element = document.createElement("div") |
| menu_element.setAttribute("class", "menu_interaction") |
| menu_element.innerHTML = |
| `<input type="checkbox" id="showmenu${message_id}" class="showmenu"> |
| <label for="showmenu${message_id}"> |
| <svg fill="#888888" height="12" viewBox="0 0 24 24" width="12" xmlns="http://www.w3.org/2000/svg"> |
| <path d="M0 0h24v24H0z" fill="none"/> |
| <path d="M6 10c-1.1 0-2 .9-2 2s.9 2 2 2 2-.9 2-2-.9-2-2-2zm12 0c-1.1 0-2 .9-2 2s.9 2 2 2 2-.9 2-2-.9-2-2-2zm-6 0c-1.1 0-2 .9-2 2s.9 2 2 2 2-.9 2-2-.9-2-2-2z"/> |
| </svg> |
| </label>` |
| menu_element.onclick = function() { |
| const button = this.querySelector(".showmenu") |
| button.checked = !button.checked |
| } |
| menu_element.onmouseleave = function() { |
| const button = this.querySelector(".showmenu") |
| button.checked = false |
| } |
| const dropdown = document.createElement("div") |
| const dropdown_classes = [ |
| "dropdown", |
| `dropdown_${message_id}` |
| ] |
| dropdown.setAttribute("class", dropdown_classes.join(" ")) |
| |
| const remove = document.createElement("div") |
| remove.setAttribute("class", "menuoption") |
| remove.innerHTML = "Delete" |
| remove.msg_id = message_id |
| remove.onclick = function() { |
| window.jsbridge.deleteInteraction(`${this.msg_id}`); |
| } |
| dropdown.appendChild(remove) |
| menu_element.appendChild(dropdown) |
| |
| return menu_element |
| } |
| |
| /** |
| * Build a message div for passed message object |
| * @param message_object to treat |
| */ |
| function buildNewMessage(message_object) { |
| const message_id = message_object["id"] |
| const message_type = message_object["type"] |
| const message_text = message_object["text"] |
| const message_direction = message_object["direction"] |
| const delivery_status = message_object["delivery_status"] |
| const message_sender_contact_method = message_object["sender_contact_method"] |
| |
| var classes = [ |
| "message", |
| `message_${message_direction}`, |
| `message_type_${message_type}` |
| ] |
| |
| var type = "" |
| var message_div = document.createElement("div") |
| message_div.setAttribute("id", `message_${message_id}`) |
| message_div.setAttribute("class", classes.join(" ")) |
| |
| // Build message for each types. |
| // Add sender images if necessary (like if the interaction doesn't take the whole width) |
| const need_sender = (message_type === "data_transfer" || message_type === "text") |
| if (need_sender) { |
| var message_sender_image = document.createElement("span") |
| message_sender_image.setAttribute("class", `sender_image sender_image_${message_sender_contact_method}`) |
| message_div.appendChild(message_sender_image) |
| } |
| |
| // Build main content |
| if (message_type === "data_transfer") { |
| if (isImage(message_text) && delivery_status === "finished" && displayLinksEnabled) { |
| var errorHandler = function() { |
| var wrapper = message_div.querySelector(".internal_mes_wrapper") |
| var message_wrapper = message_div.querySelector(".message_wrapper") |
| if (message_wrapper) { |
| message_wrapper.parentNode.removeChild(message_wrapper) |
| } |
| |
| var media_wrapper = message_div.querySelector(".media_wrapper") |
| if (media_wrapper) { |
| media_wrapper.parentNode.removeChild(media_wrapper) |
| } |
| |
| var new_interaction = fileInteraction(message_id) |
| var new_message_wrapper = new_interaction.querySelector(".message_wrapper") |
| wrapper.prepend(new_message_wrapper) |
| updateFileInteraction(message_div, message_object, true) |
| } |
| message_div.append(mediaInteraction(message_id, message_text, null, errorHandler)) |
| message_div.querySelector("img").id = message_id |
| message_div.querySelector("img").msg_obj = message_object |
| } else { |
| message_div.append(fileInteraction(message_id)) |
| } |
| } else if (message_type === "text") { |
| // TODO add the possibility to update messages (remove and rebuild) |
| const htmlText = getMessageHtml(message_text) |
| if (displayLinksEnabled) { |
| const parser = new DOMParser() |
| const DOMMsg = parser.parseFromString(htmlText, "text/xml") |
| const links = DOMMsg.querySelectorAll("a") |
| if (DOMMsg.childNodes.length && links.length) { |
| var isTextToShow = (DOMMsg.childNodes[0].childNodes.length > 1) |
| const ytid = (isVideo(message_text))? youtube_id(message_text) : "" |
| if (!isTextToShow && (ytid || isImage(message_text))) { |
| type = "media" |
| message_div.append(mediaInteraction(message_id, message_text, ytid)) |
| } |
| } |
| } |
| if (type !== "media") { |
| type = "text" |
| message_div.append(textInteraction(message_id, htmlText)) |
| } |
| } else if (message_type === "call" || message_type === "contact") { |
| message_div.append(actionInteraction()) |
| } else { |
| const temp = document.createElement("div") |
| temp.innerText = message_type |
| message_div.appendChild(temp) |
| } |
| |
| var message_dropdown = buildMessageDropdown(message_id) |
| if (message_type !== "call") { |
| message_div.appendChild(message_dropdown) |
| } else { |
| var wrapper = message_div.querySelector(".message_wrapper") |
| wrapper.insertBefore(message_dropdown, wrapper.firstChild) |
| } |
| |
| return message_div |
| } |
| |
| /** |
| * Build a timestamp for passed message object |
| * @param message_object to treat |
| */ |
| function buildNewTimestamp(message_object) { |
| const message_type = message_object["type"] |
| const message_direction = message_object["direction"] |
| const message_timestamp = message_object["timestamp"] |
| |
| const formattedTimestamp = getMessageTimestampText(message_timestamp, true) |
| const date_elt = document.createElement("div") |
| |
| date_elt.innerText = formattedTimestamp |
| var typeIsCallOrContact = (message_type === "call" || message_type === "contact") |
| var timestamp_div_classes = ["timestamp", typeIsCallOrContact ? "timestamp_action" : `timestamp_${message_direction}`] |
| date_elt.setAttribute("class", timestamp_div_classes.join(" ")) |
| date_elt.setAttribute("message_timestamp", message_timestamp) |
| |
| return date_elt |
| } |
| |
| /** |
| * Add a message to the conversation. |
| * @param message_object to treat |
| * @param new_message if it's a new message or if we need to update |
| * @param insert_after if we want the message at the end or the top of the conversation |
| * @param messages_div |
| */ |
| function addOrUpdateMessage(message_object, new_message, insert_after = true, messages_div) { |
| const message_id = message_object["id"] |
| const message_type = message_object["type"] |
| const message_direction = message_object["direction"] |
| const delivery_status = message_object["delivery_status"] |
| |
| var message_div = messages_div.querySelector("#message_" + message_id) |
| if (new_message) { |
| message_div = buildNewMessage(message_object) |
| |
| /* Show timestamp if either: |
| - message has type call or contact |
| - or most recently added timestamp in this set is different |
| - or message is the first message in this set */ |
| |
| var date_elt = buildNewTimestamp(message_object) |
| var timestamp = messages_div.querySelector(".timestamp") |
| |
| if (message_type === "call" || message_type === "contact") { |
| message_div.querySelector(".message_wrapper").appendChild(date_elt) |
| } else if (insert_after || !timestamp || timestamp.className !== date_elt.className |
| || timestamp.innerHTML !== date_elt.innerHTML) { |
| message_div.querySelector(".internal_mes_wrapper").appendChild(date_elt) |
| } |
| |
| var isGenerated = message_type === "call" || message_type === "contact" |
| if (isGenerated) { |
| message_div.classList.add("generated_message") |
| } |
| |
| if (insert_after) { |
| var previousMessage = messages_div.lastChild |
| messages_div.appendChild(message_div) |
| computeSequencing(previousMessage, message_div, null, insert_after) |
| if (previousMessage) { |
| previousMessage.classList.remove("last_message") |
| } |
| message_div.classList.add("last_message") |
| |
| /* When inserting at the bottom we should also check that the |
| previously sent message does not have the same timestamp. |
| If it's the case, remove it.*/ |
| var previous_timestamp = message_div.previousSibling.querySelector(".timestamp") |
| if (previous_timestamp && |
| previous_timestamp.className === date_elt.className && |
| previous_timestamp.innerHTML === date_elt.innerHTML && |
| !message_div.previousSibling.classList.contains("last_of_sequence")) { |
| previous_timestamp.parentNode.removeChild(previous_timestamp) |
| } |
| } else { |
| var nextMessage = messages_div.firstChild |
| messages_div.prepend(message_div) |
| computeSequencing(message_div, nextMessage, null, insert_after) |
| } |
| } |
| |
| if (isErrorStatus(delivery_status) && message_direction === "out") { |
| const dropdown = messages_div.querySelector(`.dropdown_${message_id}`) |
| if (!dropdown.querySelector(".retry")) { |
| const retry = document.createElement("div") |
| retry.setAttribute("class", "retry") |
| retry.innerHTML = "Retry" |
| retry.msg_id = message_id |
| retry.onclick = function() { |
| window.jsbridge.retryInteraction(`${this.msg_id}`); |
| } |
| dropdown.insertBefore(retry, message_div.querySelector(".delete")) |
| } |
| } |
| |
| // Update informations if needed |
| if (message_type === "data_transfer") |
| updateFileInteraction(message_div, message_object) |
| if (message_type === "text" && message_direction === "out") |
| // Modify sent status if necessary |
| updateTextInteraction(message_div, delivery_status) |
| if (message_type === "call") |
| updateCallInteraction(message_div, message_object) |
| if (message_type === "contact") |
| updateContactInteraction(message_div, message_object) |
| |
| // Clean timestamps |
| updateTimestamps(messages_div) |
| } |
| |
| function getNextInteraction(interaction, includeLazyLoadedBlock = true) |
| { |
| var nextInteraction = interaction.nextSibling |
| if (!nextInteraction && includeLazyLoadedBlock) { |
| var nextBlock = interaction.parentNode.nextElementSibling |
| if (nextBlock) { |
| nextInteraction = nextBlock.firstElementChild |
| } |
| } |
| return nextInteraction |
| } |
| |
| function getPreviousInteraction(interaction, includeLazyLoadedBlock = true) |
| { |
| var previousInteraction = interaction.previousSibling |
| if (!previousInteraction && includeLazyLoadedBlock) { |
| var previousBlock = interaction.parentNode.previousElementSibling |
| if (previousBlock) { |
| previousInteraction = previousBlock.lastElementChild |
| } |
| } |
| return previousInteraction |
| } |
| |
| function isSequenceBreak(firstMessage, secondMessage, insert_after = true) |
| { |
| if (!firstMessage || !secondMessage) { |
| return false |
| } |
| var first_message_direction = firstMessage.classList.contains("message_out") ? "out" : "in" |
| var second_message_direction = secondMessage.classList.contains("message_out") ? "out" : "in" |
| if (second_message_direction != first_message_direction) { |
| return true |
| } |
| var firstMessageIsGenerated = firstMessage.classList.contains("generated_message") |
| var secondMessageIsGenerated = secondMessage.classList.contains("generated_message") |
| if (firstMessageIsGenerated != secondMessageIsGenerated) { |
| return true |
| } |
| if (insert_after) { |
| const internal_message_wrapper = firstMessage.querySelector(".internal_mes_wrapper") |
| if (internal_message_wrapper) { |
| const firstTimestamp = internal_message_wrapper.querySelector(".timestamp") |
| return !!(firstTimestamp) && firstTimestamp.innerHTML !== "just now" |
| } |
| return false |
| } else { |
| const internal_message_wrapper = firstMessage.querySelector(".internal_mes_wrapper") |
| if (internal_message_wrapper) { |
| return !!(internal_message_wrapper.querySelector(".timestamp")) |
| } |
| return false |
| } |
| } |
| |
| function updateSequencing(firstMessage, secondMessage) |
| { |
| if (firstMessage) { |
| if (secondMessage) { |
| var sequence_break = isSequenceBreak(firstMessage, secondMessage, false) |
| if (sequence_break) { |
| if (firstMessage.classList.contains("middle_of_sequence")) { |
| firstMessage.classList.remove("middle_of_sequence") |
| firstMessage.classList.add("last_of_sequence") |
| } else if (firstMessage.classList.contains("first_of_sequence")) { |
| firstMessage.classList.remove("first_of_sequence") |
| firstMessage.classList.add("single_message") |
| } |
| if (secondMessage.classList.contains("middle_of_sequence")) { |
| secondMessage.classList.remove("middle_of_sequence") |
| secondMessage.classList.add("first_of_sequence") |
| } else if (secondMessage.classList.contains("last_of_sequence")) { |
| secondMessage.classList.remove("last_of_sequence") |
| secondMessage.classList.add("single_message") |
| } |
| } else { |
| if (firstMessage.classList.contains("last_of_sequence")) { |
| firstMessage.classList.remove("last_of_sequence") |
| firstMessage.classList.add("middle_of_sequence") |
| } else if (firstMessage.classList.contains("single_message")) { |
| firstMessage.classList.remove("single_message") |
| firstMessage.classList.add("first_of_sequence") |
| } |
| if (secondMessage.classList.contains("first_of_sequence")) { |
| secondMessage.classList.remove("first_of_sequence") |
| secondMessage.classList.add("middle_of_sequence") |
| } else if (secondMessage.classList.contains("single_message")) { |
| secondMessage.classList.remove("single_message") |
| secondMessage.classList.add("last_of_sequence") |
| } |
| } |
| } else { |
| // this is the last interaction of the conversation |
| if (firstMessage.classList.contains("first_of_sequence")) { |
| firstMessage.classList.remove("first_of_sequence") |
| firstMessage.classList.add("single_message") |
| } else if (firstMessage.classList.contains("middle_of_sequence")) { |
| firstMessage.classList.remove("middle_of_sequence") |
| firstMessage.classList.add("last_of_sequence") |
| } |
| } |
| } else if (secondMessage) { |
| // this is the first interaction of the conversation |
| if (secondMessage.classList.contains("middle_of_sequence")) { |
| secondMessage.classList.remove("middle_of_sequence") |
| secondMessage.classList.add("first_of_sequence") |
| } else if (secondMessage.classList.contains("last_of_sequence")) { |
| secondMessage.classList.remove("last_of_sequence") |
| secondMessage.classList.add("single_message") |
| } |
| } |
| } |
| |
| function computeSequencing(firstMessage, secondMessage, lazyLoadingBlock, insert_after = true) |
| { |
| if (insert_after) { |
| if (secondMessage) { |
| var secondMessageIsGenerated = secondMessage.classList.contains("generated_message") |
| if (firstMessage && !secondMessageIsGenerated) { |
| var firstMessageIsGenerated = firstMessage.classList.contains("generated_message") |
| var sequence_break = isSequenceBreak(firstMessage, secondMessage) |
| if (sequence_break) { |
| secondMessage.classList.add("single_message") |
| } else { |
| if (firstMessage.classList.contains("single_message")) { |
| firstMessage.classList.remove("single_message") |
| firstMessage.classList.add("first_of_sequence") |
| } else if (firstMessage.classList.contains("last_of_sequence")) { |
| firstMessage.classList.remove("last_of_sequence") |
| firstMessage.classList.add("middle_of_sequence") |
| } |
| if (firstMessageIsGenerated) { |
| secondMessage.classList.add("single_message") |
| } else { |
| secondMessage.classList.add("last_of_sequence") |
| } |
| } |
| } else if (!secondMessageIsGenerated) { |
| secondMessage.classList.add("single_message") |
| } |
| } |
| } else if (firstMessage) { |
| var firstMessageIsGenerated = firstMessage.classList.contains("generated_message") |
| if (secondMessage && !firstMessageIsGenerated) { |
| var secondMessageIsGenerated = secondMessage.classList.contains("generated_message") |
| var sequence_break = isSequenceBreak(firstMessage, secondMessage, false) |
| if (sequence_break) { |
| firstMessage.classList.add("single_message") |
| } else { |
| if (secondMessage.classList.contains("single_message")) { |
| secondMessage.classList.remove("single_message") |
| secondMessage.classList.add("last_of_sequence") |
| } else if (secondMessage.classList.contains("first_of_sequence")) { |
| secondMessage.classList.remove("first_of_sequence") |
| secondMessage.classList.add("middle_of_sequence") |
| } |
| if (secondMessageIsGenerated) { |
| firstMessage.classList.add("single_message") |
| } else { |
| firstMessage.classList.add("first_of_sequence") |
| } |
| } |
| } else if (!firstMessageIsGenerated) { |
| firstMessage.classList.add("single_message") |
| } |
| } |
| } |
| |
| /** |
| * Wrapper for addOrUpdateMessage. |
| * |
| * Add or update a message and make sure the scrollbar position |
| * is refreshed correctly |
| * |
| * @param message_object message to be added |
| */ |
| /* exported addMessage */ |
| function addMessage(message_object) |
| { |
| if (!messages.lastChild) { |
| var block_wrapper = document.createElement("div") |
| messages.append(block_wrapper) |
| } |
| |
| exec_keeping_scroll_position(addOrUpdateMessage, [message_object, true, undefined, messages.lastChild]) |
| } |
| |
| /** |
| * Update a message that was previously added with addMessage and |
| * make sure the scrollbar position is refreshed correctly |
| * |
| * @param message_object message to be updated |
| */ |
| /* exported updateMessage */ |
| function updateMessage(message_object) |
| { |
| var message_div = messages.querySelector("#message_" + message_object["id"]) |
| exec_keeping_scroll_position(addOrUpdateMessage, [message_object, false, undefined, message_div.parentNode]) |
| } |
| |
| /** |
| * Called whenever an image has finished loading. Check lazy loading status |
| * once all images have finished loading. |
| */ |
| function on_image_load_finished() { |
| imagesLoadingCounter-- |
| |
| if (!imagesLoadingCounter) { |
| /* This code is executed once all images have been loaded. */ |
| check_lazy_loading() |
| } |
| } |
| |
| /** |
| * Make sure at least initialScrollBufferFactor screens of messages are |
| * available in the DOM. |
| */ |
| function check_lazy_loading() { |
| if (!canLazyLoad) |
| return; |
| if (messages.scrollHeight < initialScrollBufferFactor * messages.clientHeight |
| && historyBufferIndex !== historyBuffer.length) { |
| /* Not enough messages loaded, print a new batch. Enable isInitialLoading |
| as reloading a single batch might not be sufficient to fulfill our |
| criteria (we want to be called back again to check on that) */ |
| isInitialLoading = true |
| printHistoryPart(messages, 0) |
| isInitialLoading = false |
| } |
| } |
| |
| /** |
| * Display 'scrollBuffer' messages from history in passed div (reverse order). |
| * |
| * @param messages_div that should be modified |
| * @param setMessages if enabled, #messages will be set to the resulting messages |
| * div after being modified. If #messages already exists it will |
| * be removed and replaced by the new div. |
| * @param fixedAt if setMessages is enabled, maintain scrollbar at the specified |
| * position (otherwise modifying #messages would result in |
| * changing the position of the scrollbar) |
| */ |
| function printHistoryPart(messages_div, fixedAt) |
| { |
| if (historyBufferIndex === historyBuffer.length) { |
| return |
| } |
| /* If first element is a spinner, remove it */ |
| if (messages_div.firstChild && messages_div.firstChild.id === "lazyloading-icon") { |
| messages_div.removeChild(messages_div.firstChild) |
| } |
| |
| /* Elements are appended to a wrapper div. This div has no style |
| properties, it allows us to add all messages at once to the main |
| messages div. */ |
| var block_wrapper = document.createElement("div") |
| |
| messages_div.prepend(block_wrapper) |
| |
| for (var i = 0; i < scrollBuffer && historyBufferIndex < historyBuffer.length; ++historyBufferIndex && ++i) { |
| // TODO on-screen messages should be removed from the buffer |
| addOrUpdateMessage(historyBuffer[historyBuffer.length - 1 - historyBufferIndex], true, false, block_wrapper) |
| } |
| |
| var lastMessage = block_wrapper.lastChild |
| |
| updateSequencing(lastMessage, getNextInteraction(lastMessage)) |
| |
| var absoluteLastMessage = messages_div.lastChild.lastChild |
| if (absoluteLastMessage) { |
| absoluteLastMessage.classList.add("last_message") |
| } |
| |
| /* Add ellipsis (...) at the top if there are still messages to load */ |
| if (historyBufferIndex < historyBuffer.length) { |
| var llicon = document.createElement("span") |
| llicon.id = "lazyloading-icon" |
| llicon.innerHTML = "<svg xmlns=\"http://www.w3.org/2000/svg\" fill=\"#888888\" width=\"24\" height=\"24\" viewBox=\"0 0 24 24\"><path d=\"M0 0h24v24H0z\" fill=\"none\"/><path d=\"M6 10c-1.1 0-2 .9-2 2s.9 2 2 2 2-.9 2-2-.9-2-2-2zm12 0c-1.1 0-2 .9-2 2s.9 2 2 2 2-.9 2-2-.9-2-2-2zm-6 0c-1.1 0-2 .9-2 2s.9 2 2 2 2-.9 2-2-.9-2-2-2z\"/></svg>" |
| messages_div.prepend(llicon) |
| } |
| |
| if (fixedAt !== undefined) { |
| /* update scrollbar position to take text-message -related |
| scrollHeight changes in account (not necessary to wait |
| for DOM redisplay in this case). Changes due to image |
| messages are handled in their onLoad callbacks. */ |
| back_to_scroll(fixedAt) |
| /* schedule a scrollbar position update for changes which |
| are neither handled by the previous call nor by onLoad |
| callbacks. This call is necessary but not sufficient, |
| dropping the previous call would result in visual |
| glitches during initial load. */ |
| setTimeout(function() {back_to_scroll(fixedAt)}, 0) |
| } |
| |
| if (!imagesLoadingCounter) { |
| setTimeout(check_lazy_loading, 0) |
| } |
| } |
| |
| function hideMessagesDiv() |
| { |
| if (!messages.classList.contains('fade')) { |
| messages.classList.add('fade'); |
| } |
| } |
| |
| function showMessagesDiv() |
| { |
| if (messages.classList.contains('fade')) { |
| messages.classList.remove('fade'); |
| } |
| } |
| |
| /** |
| * Set history buffer, initialize messages div and display a first batch |
| * of messages. |
| * |
| * Make sure that enough messages are displayed to fill initialScrollBufferFactor |
| * screens of messages (if enough messages are present in the conversation) |
| * |
| * @param messages_array should contain history to be printed |
| */ |
| /* exported printHistory */ |
| function printHistory(messages_array, fadein = false) |
| { |
| if(fadein) |
| hideMessagesDiv() |
| |
| historyBuffer = messages_array |
| historyBufferIndex = 0 |
| |
| isInitialLoading = true |
| printHistoryPart(messages, 0) |
| isInitialLoading = false |
| |
| canLazyLoad = true |
| |
| if(fadein) |
| showMessagesDiv() |
| } |
| |
| /** |
| * Set the image for a given sender |
| * set_sender_image object should contain the following keys: |
| * - sender: the name of the sender |
| * - sender_image: base64 png encoding of the sender image |
| * |
| * @param set_sender_image_object sender image object as previously described |
| */ |
| /* exported setSenderImage */ |
| function setSenderImage(set_sender_image_object) |
| { |
| var sender_contact_method = set_sender_image_object["sender_contact_method"], |
| sender_image = set_sender_image_object["sender_image"], |
| sender_image_id = "sender_image_" + sender_contact_method, |
| invite_sender_image_id = "invite_sender_image_" + sender_contact_method, |
| currentSenderImage = document.getElementById(sender_image_id), // Remove the currently set sender image |
| style, invite_style |
| |
| if (currentSenderImage) { |
| currentSenderImage.parentNode.removeChild(currentSenderImage) |
| } |
| |
| // Create a new style element |
| style = document.createElement("style") |
| |
| style.type = "text/css" |
| style.id = sender_image_id |
| style.innerHTML = "." + sender_image_id + " {content: url(data:image/png;base64," + sender_image + ");height: 32px;width: 32px;}" |
| document.head.appendChild(style) |
| |
| invite_style = document.createElement("style") |
| |
| invite_style.type = "text/css" |
| invite_style.id = invite_sender_image_id |
| invite_style.innerHTML = "." + invite_sender_image_id + " {content: url(data:image/png;base64," + sender_image + ");height: 48px;width: 48px;}" |
| document.head.appendChild(invite_style) |
| } |