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import QtQuick 2.12
import QtQuick.Controls 2.12
import QtQuick.Layouts 1.12
import QtQml.Models 2.1
import org.kde.kirigami 2.12 as Kirigami
import DeltaChat 1.0
Kirigami.ScrollablePage {
id: chatPage
title: chat ? chat.name : qsTr("Chat")
required property DcContext context
required property DcAccountsEventEmitter eventEmitter
required property var chatId
readonly property DcChat chat: context.getChat(chatId)
function updateMessagelist() {
// Reverse message list, because it is laid out from bottom to top.
let messagelist = context.getMsgIdList(chatId).reverse()
for (let i = 0; i < messagelist.length; i++) {
const msgId = messagelist[i]
const item = {
msgId: msgId
}
let j;
for (j = i; j < messagelistModel.count; j++) {
if (messagelistModel.get(j).msgId == msgId) {
messagelistModel.move(j, i, 1)
messagelistModel.set(i, item)
break
}
}
if (j == messagelistModel.count) {
messagelistModel.insert(i, item)
}
}
if (messagelistModel.count > messagelist.length) {
messagelistModel.remove(messagelist.length,
messagelistModel.count - messagelist.length)
}
}
ListModel {
id: messagelistModel
}
Connections {
target: chatPage.eventEmitter
function onIncomingEvent() {
console.log("EVENT!")
}
function onChatModified() {
console.log("CHAT MODIFIED!")
}
function onIncomingMessage() {
console.log("Incoming message for chat " + chatId)
if (chatId == chatPage.chatId) {
chatPage.updateMessagelist()
}
}
function onMessagesChanged(accountId, chatId, msgId) {
console.log("Messages changed for chat " + chatId)
if (chatId == chatPage.chatId) {
chatPage.updateMessagelist()
}
}
}
Component.onCompleted: {
chatPage.updateMessagelist()
}
background: Rectangle {
color: Kirigami.Theme.alternateBackgroundColor
anchors.fill: parent
}
Component {
id: composePane
Pane {
Layout.fillWidth: true
RowLayout {
width: parent.width
TextField {
id: messageField
Layout.fillWidth: true
placeholderText: qsTr("Message")
wrapMode: TextArea.Wrap
selectByMouse: true
}
Button {
id: sendButton
icon.name: "document-send"
text: qsTr("Send")
enabled: messageField.length > 0
onClicked: {
chatPage.context.sendTextMessage(chatPage.chatId, messageField.text)
messageField.text = ""
}
}
}
}
}
ListView {
id: messageListView
anchors.fill: parent
spacing: 10
model: messagelistModel
/*
* Messages are laid out bottom to top, because their height
* is not known in advance.
*
* Attempts to lay out messages top to bottom and scroll to the
* bottom of the list with ListView.positionViewAtEnd() result in
* imprecise scrollbar position, because this method estimates
* item height from the height of currently visible messages.
*/
verticalLayoutDirection: ListView.BottomToTop
delegate: Message {message: context.getMessage(msgId)}
}
footer: Loader {
sourceComponent: composePane
Layout.fillWidth: true
visible: chat && chat.canSend
}
}
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