Improve scroll to message a bit by using a ScrollView

This commit is contained in:
Nicolas Werner 2021-02-13 23:52:45 +01:00
parent ca237f36b9
commit 0d61f4bff1

View file

@ -6,220 +6,222 @@ import QtQuick.Layouts 1.2
import QtQuick.Window 2.2
import im.nheko 1.0
ListView {
id: chat
ScrollView {
contentWidth: availableWidth
clip: false
palette: colors
padding: 8
property int delegateMaxWidth: (Settings.timelineMaxWidth > 100 && (parent.width - Settings.timelineMaxWidth) > scrollbar.width * 2) ? Settings.timelineMaxWidth : (parent.width - scrollbar.width * 2 - 8)
ListView {
id: chat
Layout.fillWidth: true
Layout.fillHeight: true
model: TimelineManager.timeline
boundsBehavior: Flickable.StopAtBounds
pixelAligned: true
spacing: 4
verticalLayoutDirection: ListView.BottomToTop
onCountChanged: {
// Mark timeline as read
if (atYEnd)
model.currentIndex = 0;
property int delegateMaxWidth: ((Settings.timelineMaxWidth > 100 && Settings.timelineMaxWidth < parent.availableWidth) ? Settings.timelineMaxWidth : parent.availableWidth) - parent.padding
}
model: TimelineManager.timeline
boundsBehavior: Flickable.StopAtBounds
pixelAligned: true
spacing: 4
verticalLayoutDirection: ListView.BottomToTop
onCountChanged: {
// Mark timeline as read
if (atYEnd)
model.currentIndex = 0;
ScrollHelper {
flickable: parent
anchors.fill: parent
enabled: !Settings.mobileMode
}
Shortcut {
sequence: StandardKey.MoveToPreviousPage
onActivated: {
chat.contentY = chat.contentY - chat.height / 2;
chat.returnToBounds();
}
}
Shortcut {
sequence: StandardKey.MoveToNextPage
onActivated: {
chat.contentY = chat.contentY + chat.height / 2;
chat.returnToBounds();
ScrollHelper {
flickable: parent
anchors.fill: parent
enabled: !Settings.mobileMode
}
}
Shortcut {
sequence: StandardKey.Cancel
onActivated: {
if (chat.model.reply)
chat.model.reply = undefined;
else
chat.model.edit = undefined;
}
}
Shortcut {
sequence: "Alt+Up"
onActivated: chat.model.reply = chat.model.indexToId(chat.model.reply ? chat.model.idToIndex(chat.model.reply) + 1 : 0)
}
Shortcut {
sequence: "Alt+Down"
onActivated: {
var idx = chat.model.reply ? chat.model.idToIndex(chat.model.reply) - 1 : -1;
chat.model.reply = idx >= 0 ? chat.model.indexToId(idx) : undefined;
}
}
Shortcut {
sequence: "Ctrl+E"
onActivated: {
chat.model.edit = chat.model.reply;
}
}
Connections {
target: TimelineManager
onFocusChanged: readTimer.running = TimelineManager.isWindowFocused
}
Timer {
id: readTimer
// force current read index to update
onTriggered: chat.model.setCurrentIndex(chat.model.currentIndex)
interval: 1000
}
Component {
id: sectionHeader
Column {
topPadding: 4
bottomPadding: 4
spacing: 8
visible: modelData && (modelData.previousMessageUserId !== modelData.userId || modelData.previousMessageDay !== modelData.day)
width: parentWidth
height: ((modelData && modelData.previousMessageDay !== modelData.day) ? dateBubble.height + 8 + userName.height : userName.height) + 8
Label {
id: dateBubble
anchors.horizontalCenter: parent ? parent.horizontalCenter : undefined
visible: modelData && modelData.previousMessageDay !== modelData.day
text: modelData ? chat.model.formatDateSeparator(modelData.timestamp) : ""
color: colors.text
height: Math.round(fontMetrics.height * 1.4)
width: contentWidth * 1.2
horizontalAlignment: Text.AlignHCenter
verticalAlignment: Text.AlignVCenter
background: Rectangle {
radius: parent.height / 2
color: colors.window
}
Shortcut {
sequence: StandardKey.MoveToPreviousPage
onActivated: {
chat.contentY = chat.contentY - chat.height / 2;
chat.returnToBounds();
}
}
Row {
height: userName.height
spacing: 8
Avatar {
id: messageUserAvatar
width: avatarSize
height: avatarSize
url: modelData ? chat.model.avatarUrl(modelData.userId).replace("mxc://", "image://MxcImage/") : ""
displayName: modelData ? modelData.userName : ""
userid: modelData ? modelData.userId : ""
onClicked: chat.model.openUserProfile(modelData.userId)
}
Connections {
target: chat.model
onRoomAvatarUrlChanged: {
messageUserAvatar.url = modelData ? chat.model.avatarUrl(modelData.userId).replace("mxc://", "image://MxcImage/") : "";
}
}
Label {
id: userName
text: modelData ? TimelineManager.escapeEmoji(modelData.userName) : ""
color: TimelineManager.userColor(modelData ? modelData.userId : "", colors.window)
textFormat: Text.RichText
MouseArea {
anchors.fill: parent
Layout.alignment: Qt.AlignHCenter
onClicked: chat.model.openUserProfile(modelData.userId)
cursorShape: Qt.PointingHandCursor
propagateComposedEvents: true
}
}
Label {
color: colors.buttonText
text: modelData ? TimelineManager.userStatus(modelData.userId) : ""
textFormat: Text.PlainText
elide: Text.ElideRight
width: chat.delegateMaxWidth - parent.spacing * 2 - userName.implicitWidth - avatarSize
font.italic: true
}
Shortcut {
sequence: StandardKey.MoveToNextPage
onActivated: {
chat.contentY = chat.contentY + chat.height / 2;
chat.returnToBounds();
}
}
}
ScrollBar.vertical: ScrollBar {
id: scrollbar
}
delegate: Item {
id: wrapper
anchors.horizontalCenter: parent ? parent.horizontalCenter : undefined
width: chat.delegateMaxWidth
height: section ? section.height + timelinerow.height : timelinerow.height
Loader {
id: section
property var modelData: model
property int parentWidth: parent.width
active: model.previousMessageUserId !== undefined && model.previousMessageUserId !== model.userId || model.previousMessageDay !== model.day
//asynchronous: true
sourceComponent: sectionHeader
visible: status == Loader.Ready
Shortcut {
sequence: StandardKey.Cancel
onActivated: {
if (chat.model.reply)
chat.model.reply = undefined;
else
chat.model.edit = undefined;
}
}
TimelineRow {
id: timelinerow
Shortcut {
sequence: "Alt+Up"
onActivated: chat.model.reply = chat.model.indexToId(chat.model.reply ? chat.model.idToIndex(chat.model.reply) + 1 : 0)
}
y: section.active && section.visible ? section.y + section.height : 0
Shortcut {
sequence: "Alt+Down"
onActivated: {
var idx = chat.model.reply ? chat.model.idToIndex(chat.model.reply) - 1 : -1;
chat.model.reply = idx >= 0 ? chat.model.indexToId(idx) : undefined;
}
}
Shortcut {
sequence: "Ctrl+E"
onActivated: {
chat.model.edit = chat.model.reply;
}
}
Connections {
target: chat
onMovementEnded: {
if (y + height + 2 * chat.spacing > chat.contentY + chat.height && y < chat.contentY + chat.height)
chat.model.currentIndex = index;
target: TimelineManager
onFocusChanged: readTimer.running = TimelineManager.isWindowFocused
}
Timer {
id: readTimer
// force current read index to update
onTriggered: chat.model.setCurrentIndex(chat.model.currentIndex)
interval: 1000
}
Component {
id: sectionHeader
Column {
topPadding: 4
bottomPadding: 4
spacing: 8
visible: modelData && (modelData.previousMessageUserId !== modelData.userId || modelData.previousMessageDay !== modelData.day)
width: parentWidth
height: ((modelData && modelData.previousMessageDay !== modelData.day) ? dateBubble.height + 8 + userName.height : userName.height) + 8
Label {
id: dateBubble
anchors.horizontalCenter: parent ? parent.horizontalCenter : undefined
visible: modelData && modelData.previousMessageDay !== modelData.day
text: modelData ? chat.model.formatDateSeparator(modelData.timestamp) : ""
color: colors.text
height: Math.round(fontMetrics.height * 1.4)
width: contentWidth * 1.2
horizontalAlignment: Text.AlignHCenter
verticalAlignment: Text.AlignVCenter
background: Rectangle {
radius: parent.height / 2
color: colors.window
}
}
Row {
height: userName.height
spacing: 8
Avatar {
id: messageUserAvatar
width: avatarSize
height: avatarSize
url: modelData ? chat.model.avatarUrl(modelData.userId).replace("mxc://", "image://MxcImage/") : ""
displayName: modelData ? modelData.userName : ""
userid: modelData ? modelData.userId : ""
onClicked: chat.model.openUserProfile(modelData.userId)
}
Connections {
target: chat.model
onRoomAvatarUrlChanged: {
messageUserAvatar.url = modelData ? chat.model.avatarUrl(modelData.userId).replace("mxc://", "image://MxcImage/") : "";
}
}
Label {
id: userName
text: modelData ? TimelineManager.escapeEmoji(modelData.userName) : ""
color: TimelineManager.userColor(modelData ? modelData.userId : "", colors.window)
textFormat: Text.RichText
MouseArea {
anchors.fill: parent
Layout.alignment: Qt.AlignHCenter
onClicked: chat.model.openUserProfile(modelData.userId)
cursorShape: Qt.PointingHandCursor
propagateComposedEvents: true
}
}
Label {
color: colors.buttonText
text: modelData ? TimelineManager.userStatus(modelData.userId) : ""
textFormat: Text.PlainText
elide: Text.ElideRight
width: chat.delegateMaxWidth - parent.spacing * 2 - userName.implicitWidth - avatarSize
font.italic: true
}
}
}
}
delegate: Item {
id: wrapper
anchors.horizontalCenter: parent ? parent.horizontalCenter : undefined
width: chat.delegateMaxWidth
height: section ? section.height + timelinerow.height : timelinerow.height
Loader {
id: section
property var modelData: model
property int parentWidth: parent.width
active: model.previousMessageUserId !== undefined && model.previousMessageUserId !== model.userId || model.previousMessageDay !== model.day
//asynchronous: true
sourceComponent: sectionHeader
visible: status == Loader.Ready
}
TimelineRow {
id: timelinerow
y: section.active && section.visible ? section.y + section.height : 0
}
Connections {
target: chat
onMovementEnded: {
if (y + height + 2 * chat.spacing > chat.contentY + chat.height && y < chat.contentY + chat.height)
chat.model.currentIndex = index;
}
}
}
footer: BusyIndicator {
anchors.horizontalCenter: parent.horizontalCenter
running: chat.model && chat.model.paginationInProgress
height: 50
width: 50
z: 3
}
}
footer: BusyIndicator {
anchors.horizontalCenter: parent.horizontalCenter
running: chat.model && chat.model.paginationInProgress
height: 50
width: 50
z: 3
}
}