status-desktop/ui/app/AppLayouts/Chat/ChatColumn/ChatMessages.qml

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import QtQuick 2.13
import QtQuick.Controls 2.13
import QtQuick.Window 2.13
import QtQuick.Layouts 1.13
import QtQml.Models 2.13
import QtGraphicalEffects 1.13
import QtQuick.Dialogs 1.3
import "../../../../shared"
import "../../../../shared/panels"
import "../../../../shared/controls"
import "../../../../shared/status"
import utils 1.0
import "../components"
import "./samples/"
import "./MessageComponents"
import "../ContactsColumn"
import "../CommunityComponents"
Item {
id: root
anchors.fill: parent
property alias chatLogView: chatLogView
property alias scrollToMessage: chatLogView.scrollToMessage
property var messageContextMenuInst
property var messageList: MessagesData {}
property real scrollY: chatLogView.visibleArea.yPosition * chatLogView.contentHeight
property int newMessages: 0
property int countOnStartUp: 0
ListView {
id: chatLogView
anchors.fill: parent
spacing: appSettings.useCompactMode ? 0 : 4
boundsBehavior: Flickable.StopAtBounds
clip: true
verticalLayoutDirection: ListView.BottomToTop
// This header and Connections is to create an invisible padding so that the chat identifier is at the top
// The Connections is necessary, because doing the check inside the header created a binding loop (the contentHeight includes the header height
// If the content height is smaller than the full height, we "show" the padding so that the chat identifier is at the top, otherwise we disable the Connections
header: Item {
height: 0
width: chatLogView.width
}
function checkHeaderHeight() {
if (!chatLogView.headerItem) {
return
}
if (chatLogView.contentItem.height - chatLogView.headerItem.height < chatLogView.height) {
chatLogView.headerItem.height = chatLogView.height - (chatLogView.contentItem.height - chatLogView.headerItem.height) - 36
} else {
chatLogView.headerItem.height = 0
}
}
property var scrollToMessage: function (messageId, isSearch = false) {
delayPositioningViewTimer.msgId = messageId;
delayPositioningViewTimer.isSearch = isSearch;
delayPositioningViewTimer.restart();
}
Timer {
id: delayPositioningViewTimer
interval: 1000
property string msgId
property bool isSearch
onTriggered: {
let item
for (let i = 0; i < messages.rowCount(); i++) {
item = messageListDelegate.items.get(i);
if (item.model.messageId === msgId) {
chatLogView.positionViewAtIndex(i, ListView.Beginning);
if (appSettings.useCompactMode && isSearch) {
chatLogView.itemAtIndex(i).startMessageFoundAnimation();
}
}
}
msgId = "";
isSearch = false;
}
}
ScrollBar.vertical: ScrollBar {
visible: chatLogView.visibleArea.heightRatio < 1
}
Connections {
id: contentHeightConnection
enabled: true
target: chatLogView
onContentHeightChanged: {
chatLogView.checkHeaderHeight()
}
onHeightChanged: {
chatLogView.checkHeaderHeight()
}
}
Timer {
id: timer
}
Button {
readonly property int buttonPadding: 5
id: scrollDownButton
visible: false
height: 32
width: nbMessages.width + arrowImage.width + 2 * Style.current.halfPadding + (nbMessages.visible ? scrollDownButton.buttonPadding : 0)
anchors.bottom: parent.bottom
anchors.right: parent.right
anchors.rightMargin: Style.current.padding
background: Rectangle {
color: Style.current.buttonSecondaryColor
border.width: 0
radius: 16
}
onClicked: {
newMessages = 0
scrollDownButton.visible = false
chatLogView.scrollToBottom(true)
}
StyledText {
id: nbMessages
visible: newMessages > 0
width: visible ? implicitWidth : 0
text: newMessages
anchors.verticalCenter: parent.verticalCenter
anchors.left: parent.left
color: Style.current.pillButtonTextColor
font.pixelSize: 15
anchors.leftMargin: Style.current.halfPadding
}
SVGImage {
id: arrowImage
width: 24
height: 24
anchors.verticalCenter: parent.verticalCenter
anchors.left: nbMessages.right
source: Style.svg("leave_chat")
anchors.leftMargin: nbMessages.visible ? scrollDownButton.buttonPadding : 0
rotation: -90
ColorOverlay {
anchors.fill: parent
source: parent
color: Style.current.pillButtonTextColor
}
}
MouseArea {
cursorShape: Qt.PointingHandCursor
anchors.fill: parent
onPressed: mouse.accepted = false
}
}
function scrollToBottom(force, caller) {
if (!force && !chatLogView.atYEnd) {
// User has scrolled up, we don't want to scroll back
return false
}
if (caller && caller !== chatLogView.itemAtIndex(chatLogView.count - 1)) {
// If we have a caller, only accept its request if it's the last message
return false
}
// Call this twice and with a timer since the first scroll to bottom might have happened before some stuff loads
// meaning that the scroll will not actually be at the bottom on switch
// Add a small delay because images, even though they say they say they are loaed, they aren't shown yet
Qt.callLater(chatLogView.positionViewAtBeginning)
timer.setTimeout(function() {
Qt.callLater(chatLogView.positionViewAtBeginning)
}, 100);
return true
}
Connections {
target: chatsModel
onAppReady: {
chatLogView.scrollToBottom(true)
}
}
Connections {
target: chatsModel.messageView
onSendingMessageSuccess: {
chatLogView.scrollToBottom(true)
}
onSendingMessageFailed: {
sendingMsgFailedPopup.open();
}
onNewMessagePushed: {
if (!chatLogView.scrollToBottom()) {
newMessages++
}
}
}
Connections {
target: chatsModel.communities
// Note:
// Whole this Connection object (both slots) should be moved to the nim side.
// Left here only cause we don't have a way to deal with translations on the nim side.
onMembershipRequestChanged: function (communityId, communityName, accepted) {
chatColumnLayout.currentNotificationChatId = null
chatColumnLayout.currentNotificationCommunityId = communityId
chatsModel.showOSNotification("Status",
//% "You have been accepted into the %1 community"
accepted ? qsTrId("you-have-been-accepted-into-the---1--community").arg(communityName) :
//% "Your request to join the %1 community was declined"
qsTrId("your-request-to-join-the---1--community-was-declined").arg(communityName),
accepted? Constants.osNotificationType.acceptedIntoCommunity :
Constants.osNotificationType.rejectedByCommunity,
communityId,
"",
"",
appSettings.useOSNotifications)
}
onMembershipRequestPushed: function (communityId, communityName, pubKey) {
chatColumnLayout.currentNotificationChatId = null
chatColumnLayout.currentNotificationCommunityId = communityId
//% "New membership request"
chatsModel.showOSNotification(qsTrId("new-membership-request"),
//% "%1 asks to join %2"
qsTrId("-1-asks-to-join---2-").arg(Utils.getDisplayName(pubKey)).arg(communityName),
Constants.osNotificationType.joinCommunityRequest,
communityId,
"",
"",
appSettings.useOSNotifications)
}
}
property var loadMsgs : Backpressure.oneInTime(chatLogView, 500, function() {
if(!messages.initialMessagesLoaded || messages.loadingHistoryMessages)
return
chatsModel.messageView.loadMoreMessages(chatId);
});
onContentYChanged: {
scrollDownButton.visible = (contentHeight - (scrollY + height) > 400)
if(scrollDownButton.visible && scrollY < 500){
loadMsgs();
}
}
model: messageListDelegate
section.property: "sectionIdentifier"
section.criteria: ViewSection.FullString
Component.onCompleted: scrollToBottom(true)
}
MessageDialog {
id: sendingMsgFailedPopup
standardButtons: StandardButton.Ok
//% "Failed to send message."
text: qsTrId("failed-to-send-message-")
icon: StandardIcon.Critical
}
Timer {
id: modelLoadingDelayTimer
interval: 1000
onTriggered: {
root.countOnStartUp = messageListDelegate.count;
}
}
DelegateModelGeneralized {
id: messageListDelegate
lessThan: [
function(left, right) { return left.clock > right.clock }
]
model: messages
delegate: Message {
id: msgDelegate
fromAuthor: model.fromAuthor
chatId: model.chatId
userName: model.userName
alias: model.alias
localName: model.localName
message: model.message
plainText: model.plainText
identicon: model.identicon
isCurrentUser: model.isCurrentUser
timestamp: model.timestamp
sticker: model.sticker
contentType: model.contentType
replaces: model.replaces
isEdited: model.isEdited
outgoingStatus: model.outgoingStatus
responseTo: model.responseTo
authorCurrentMsg: msgDelegate.ListView.section
// The previous message is actually the nextSection since we reversed the list order
authorPrevMsg: msgDelegate.ListView.nextSection
imageClick: imagePopup.openPopup.bind(imagePopup)
messageId: model.messageId
emojiReactions: model.emojiReactions
linkUrls: model.linkUrls
communityId: model.communityId
hasMention: model.hasMention
stickerPackId: model.stickerPackId
pinnedMessage: model.isPinned
pinnedBy: model.pinnedBy
gapFrom: model.gapFrom
gapTo: model.gapTo
visible: !model.hide
Component.onCompleted: {
if ((root.countOnStartUp > 0) && (root.countOnStartUp - 1) < index) {
//new message, increment z order
z = index;
}
}
messageContextMenu: root.messageContextMenuInst
prevMessageIndex: {
// This is used in order to have access to the previous message and determine the timestamp
// we can't rely on the index because the sequence of messages is not ordered on the nim side
if (msgDelegate.DelegateModel.itemsIndex < messageListDelegate.items.count - 1) {
return messageListDelegate.items.get(msgDelegate.DelegateModel.itemsIndex + 1).model.index
}
return -1;
}
nextMessageIndex: {
if (msgDelegate.DelegateModel.itemsIndex < 1) {
return -1
}
return messageListDelegate.items.get(msgDelegate.DelegateModel.itemsIndex - 1).model.index
}
scrollToBottom: chatLogView.scrollToBottom
timeout: model.timeout
}
Component.onCompleted: {
modelLoadingDelayTimer.start();
}
}
}