refactor: Remove Chat preview scrollbar

ChatView/CMakeLists.txt

@@ -17,7 +17,7 @@ qt_add_qml_module(QodeAssistChatView
     qml/parts/TopBar.qml
     qml/parts/BottomBar.qml
     qml/parts/AttachedFilesPlace.qml
-    qml/parts/ChatPreviewBar.qml
+
     RESOURCES
     icons/attach-file-light.svg
     icons/attach-file-dark.svg

ChatView/qml/RootItem.qml

@@ -76,10 +76,6 @@ ChatRootView {
                 text: qsTr("Latest chat file name: %1").arg(root.chatFileName.length > 0 ? root.chatFileName : "Unsaved")
             }
             openChatHistory.onClicked: root.openChatHistoryFolder()
-            expandScrollbar {
-                text: scroll.isPreviewMode ? "»" : "«"
-                onClicked: scroll.isPreviewMode = !scroll.isPreviewMode
-            }
         }
 
         ListView {
@@ -118,50 +114,6 @@ ChatRootView {
 
             ScrollBar.vertical: QQC.ScrollBar {
                 id: scroll
-
-                property bool isPreviewMode: false
-                readonly property int previewWidth: 30
-
-                implicitWidth: isPreviewMode ? scroll.previewWidth : 16
-
-                contentItem: Rectangle {
-                    implicitWidth: scroll.isPreviewMode ? scroll.previewWidth : 6
-                    implicitHeight: 100
-                    radius: 3
-                    color: scroll.pressed ? palette.dark :
-                                            scroll.hovered ? palette.mid :
-                                                             palette.button
-
-                    Behavior on implicitWidth {
-                        NumberAnimation { duration: 150 }
-                    }
-                }
-
-                background: Rectangle {
-                    color: scroll.isPreviewMode ? "transparent" :
-                                                  palette.window.hslLightness > 0.5 ?
-                                                      Qt.darker(palette.window, 1.1) :
-                                                      Qt.lighter(palette.window, 1.1)
-                    radius: 3
-                }
-
-                ChatPreviewBar {
-                    anchors.fill: parent
-                    targetView: chatListView
-                    visible: parent.isPreviewMode
-                    opacity: parent.isPreviewMode ? 1 : 0
-
-                    Behavior on opacity {
-                        NumberAnimation { duration: 150 }
-                    }
-                }
-
-                Behavior on implicitWidth {
-                    NumberAnimation {
-                        duration: 150
-                        easing.type: Easing.InOutQuad
-                    }
-                }
             }
 
             onCountChanged: {

ChatView/qml/parts/ChatPreviewBar.qml

@@ -1,135 +0,0 @@
-/*
- * Copyright (C) 2025 Petr Mironychev
- *
- * This file is part of QodeAssist.
- *
- * QodeAssist is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * QodeAssist is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with QodeAssist. If not, see <https://www.gnu.org/licenses/>.
- */
-
-import QtQuick
-import QtQuick.Controls
-
-Rectangle {
-    id: root
-
-    property ListView targetView: null
-    property int previewWidth: 50
-    property color userMessageColor: "#92BD6C"
-    property color assistantMessageColor: palette.button
-
-    width: previewWidth
-    color: palette.window.hslLightness > 0.5 ?
-           Qt.darker(palette.window, 1.1) :
-           Qt.lighter(palette.window, 1.1)
-
-    Behavior on opacity {
-        NumberAnimation {
-            duration: 150
-            easing.type: Easing.InOutQuad
-        }
-    }
-
-    Column {
-        id: previewContainer
-        anchors.fill: parent
-        anchors.margins: 2
-        spacing: 2
-
-        Repeater {
-            model: targetView ? targetView.model : null
-
-            Rectangle {
-                required property int index
-                required property var model
-
-                width: parent.width
-                height: {
-                    if (!targetView || !targetView.count) return 0
-                    const availableHeight = root.height - ((targetView.count - 1) * previewContainer.spacing)
-                    return availableHeight / targetView.count
-                }
-
-                radius: 4
-                color: model.roleType === ChatModel.User ?
-                       userMessageColor :
-                       assistantMessageColor
-
-                opacity: root.opacity
-                transform: Translate {
-                    x: root.opacity * 50 - 50
-                }
-
-                Behavior on transform {
-                    NumberAnimation {
-                        duration: 150
-                        easing.type: Easing.InOutQuad
-                    }
-                }
-
-                MouseArea {
-                    anchors.fill: parent
-                    onClicked: {
-                        if (targetView) {
-                            targetView.positionViewAtIndex(index, ListView.Center)
-                        }
-                    }
-
-                    HoverHandler {
-                        id: hover
-                    }
-                }
-
-                Rectangle {
-                    anchors.fill: parent
-                    color: palette.highlight
-                    opacity: hover.hovered ? 0.2 : 0
-                    radius: parent.radius
-
-                    Behavior on opacity {
-                        NumberAnimation { duration: 150 }
-                    }
-                }
-
-                Rectangle {
-                    anchors.fill: parent
-                    color: palette.highlight
-                    opacity: {
-                        if (!targetView) return 0
-                        const viewY = targetView.contentY
-                        const viewHeight = targetView.height
-                        const totalHeight = targetView.contentHeight
-                        const itemPosition = index / targetView.count * totalHeight
-                        const itemHeight = totalHeight / targetView.count
-
-                        return (itemPosition + itemHeight > viewY &&
-                                itemPosition < viewY + viewHeight) ? 0.2 : 0
-                    }
-                    radius: parent.radius
-
-                    Behavior on opacity {
-                        NumberAnimation { duration: 150 }
-                    }
-                }
-
-                ToolTip.visible: hover.hovered
-                ToolTip.text: {
-                    const maxPreviewLength = 100
-                    return model.content.length > maxPreviewLength ?
-                           model.content.substring(0, maxPreviewLength) + "..." :
-                           model.content
-                }
-            }
-        }
-    }
-}

ChatView/qml/parts/TopBar.qml

@@ -30,7 +30,6 @@ Rectangle {
     property alias tokensBadge: tokensBadgeId
     property alias recentPath: recentPathId
     property alias openChatHistory: openChatHistoryId
-    property alias expandScrollbar: expandScrollbarId
 
     color: palette.window.hslLightness > 0.5 ?
                Qt.darker(palette.window, 1.1) :
@@ -85,12 +84,5 @@ Rectangle {
         Badge {
             id: tokensBadgeId
         }
-
-        QoAButton {
-            id: expandScrollbarId
-
-            width: 16
-            height: 16
-        }
     }
 }