v0.8.8: Qt front end redesign, responsive shell, UI input tests

The window is no longer one file pretending to be a chat box. The transcript,
the run panel, the composer and the two consent dialogs are their own QML
components over one Theme singleton, and the shell around them adapts to the
screen: docked and scrollable on a desktop, a slide-out drawer on a phone.

QML (app/qml/, new except Main.qml):
- Theme.qml: single QML singleton, dark Breeze-flavoured tokens (surface,
  border, accent, text/textDim/textFaint, radius, pad, gap, sizes, monospace);
  diffLineColor() for unified-diff rows, compactBreakpoint 880, touchTarget
  34, segmentHeight 30, headerHeight 42.
- ChatView.qml: a row-type dispatcher over the transcript model (message,
  thought, tool, note), follow-the-tail scrolling with a "jump to latest"
  button once the user scrolls up, and an empty state that says where the
  agent runs and what it can do.
- MessageCard.qml, ThinkBlock.qml, NoteLine.qml, ToolCard.qml (status pill,
  arguments, collapsible output, 500-line cut, diff colouring, spinner while
  the call runs), TodoPanel.qml.
- Sidebar.qml: workspace/provider/status, mode and approval segmented rows,
  plan switch, the engine's todo list, version footer; scrolls, so a short
  window still reaches every control.
- Composer.qml: auto-growing field, Enter sends / Shift+Enter newlines,
  red Stop while a turn runs, autocorrect hints off, finger-sized targets.
- ConsentDialog.qml (Deny / Once / Always -> CST_PERM_*) and AskDialog.qml
  (the model's options become buttons, free text stays possible).
- Main.qml: shell with header, draggable sidebar splitter (hover feedback,
  200-560 px, double-click resets), transcript, composer, the two dialogs,
  Esc to cancel and Ctrl+L to clear. Under 880 px the sidebar becomes a
  drawer with a scrim instead of squeezing the chat away.

AgentCore / main.cpp:
- provider, model, approval and planMode are properties now; approval and
  plan mode write back into the engine's config, and renderMarkdown() calls
  cst_web_md_html(), so a table or a code fence looks like the WebUI's.
- the todo hook writes m_todo on the GUI thread (it was written from the
  worker thread before: a data race on a QString member).
- --size WxH for the window (the layout tests drive it), and the Basic style
  is chosen by default: the Breeze Quick style registers its types with
  relative URLs, which floods the log and breaks the composer.

UI tests (app/src/ui/):
- --uitest drives the real window with synthesized input and exits with the
  number of failures: 15 checks over docking/drawer transitions, mouse clicks
  and touch taps reaching the engine's mode, the plan switch, the composer
  arming the send button, and a 460x900 -> 1200x820 resize round trip.
- every control the tests touch carries an objectName; the sidebar's
  implicitHeight binding loop is gone.

Tests: cst-app-selftest and --uitest pass in the standalone app build,
ctest cst-app-selftest passes in the repo build (38/38 on the host).

Version 0.8.8.
This commit is contained in:
WHC
2026-10-11 11:58:23 +08:00
parent 5ba215b36c
commit da812cc7e8
20 changed files with 1874 additions and 179 deletions
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import QtQuick
import QtQuick.Controls
import QtQuick.Layouts
// What the engine is set to: where it runs, how it frames itself, when it
// asks, whether it is planning. Everything here writes straight into the
// engine's config (AgentCore), never into a copy the engine cannot see.
//
// The panel scrolls (a phone-sized window cannot show it all) and every
// control keeps a finger-sized hit area.
Rectangle {
id: side
property string workspace: ""
property string provider: ""
property string model: ""
property string mode: "coding"
property int approval: 1 // cst_approval_t
property bool planMode: false
property bool running: false
property string status: ""
property string todo: ""
signal modeRequested(string mode)
signal approvalRequested(int approval)
signal planModeRequested(bool on)
readonly property alias contentColumn: col
color: Theme.surface
border.width: 1
border.color: Theme.border
implicitHeight: col.implicitHeight + Theme.pad * 2
// One selectable row of a segmented control.
component Seg: Button {
id: seg
property bool current: false
flat: true
implicitHeight: Theme.segmentHeight
padding: 0
background: Rectangle {
radius: Theme.radiusSm
color: seg.current ? Theme.accentDim : (seg.hovered ? Theme.surfaceAlt : "transparent")
border.width: 1
border.color: seg.current ? Theme.accent : Theme.border
}
contentItem: Text {
text: seg.text
color: seg.current ? Theme.text : Theme.textDim
font.pixelSize: Theme.smallSize
horizontalAlignment: Text.AlignHCenter
verticalAlignment: Text.AlignVCenter
}
}
Flickable {
anchors.fill: parent
contentWidth: width
contentHeight: col.implicitHeight + Theme.pad * 2
clip: true
boundsBehavior: Flickable.StopAtBounds
ScrollBar.vertical: ScrollBar {}
ColumnLayout {
id: col
x: Theme.pad
y: Theme.pad
width: parent.width - Theme.pad * 2
spacing: Theme.gapL
// --- where ---
ColumnLayout {
Layout.fillWidth: true
spacing: 4
RowLayout {
spacing: Theme.gap
Rectangle { width: 8; height: 8; radius: 4; color: Theme.accent }
Text {
text: "CST-agent"
color: Theme.text
font.pixelSize: Theme.bodySize
font.bold: true
}
Item { Layout.fillWidth: true }
Text {
visible: side.running
text: "turn running"
color: Theme.warn
font.pixelSize: Theme.smallSize
}
}
Text {
Layout.fillWidth: true
text: side.workspace.length ? side.workspace : "(no workspace)"
color: Theme.textDim
font.pixelSize: Theme.smallSize
elide: Text.ElideMiddle
ToolTip.visible: wsHover.hovered
ToolTip.text: side.workspace
HoverHandler { id: wsHover }
}
Text {
Layout.fillWidth: true
visible: side.provider.length > 0 || side.model.length > 0
text: (side.provider.length ? side.provider : "?") +
(side.model.length ? " · " + side.model : "")
color: Theme.textFaint
font.pixelSize: Theme.smallSize
elide: Text.ElideRight
}
Text {
Layout.fillWidth: true
visible: side.status.length > 0
text: side.status
color: Theme.textFaint
font.pixelSize: Theme.smallSize
elide: Text.ElideRight
}
}
// --- how it frames itself ---
ColumnLayout {
Layout.fillWidth: true
spacing: 4
Text { text: "Mode"; color: Theme.textDim; font.pixelSize: Theme.smallSize; font.bold: true }
RowLayout {
Layout.fillWidth: true
spacing: 4
Seg {
objectName: "modeCoding"
Layout.fillWidth: true
text: "coding"
current: side.mode !== "general"
onClicked: side.modeRequested("coding")
}
Seg {
objectName: "modeGeneral"
Layout.fillWidth: true
text: "general"
current: side.mode === "general"
onClicked: side.modeRequested("general")
}
}
Text {
Layout.fillWidth: true
text: side.mode === "general" ? "documents, data, everyday files"
: "code framed: repos, builds, tests"
color: Theme.textFaint
font.pixelSize: Theme.smallSize
wrapMode: Text.Wrap
}
}
// --- when it asks ---
ColumnLayout {
Layout.fillWidth: true
spacing: 4
Text { text: "Approval"; color: Theme.textDim; font.pixelSize: Theme.smallSize; font.bold: true }
RowLayout {
Layout.fillWidth: true
spacing: 4
Seg {
Layout.fillWidth: true
text: "ask"
current: side.approval === 0
onClicked: side.approvalRequested(0)
}
Seg {
Layout.fillWidth: true
text: "auto"
current: side.approval === 1
onClicked: side.approvalRequested(1)
}
Seg {
Layout.fillWidth: true
text: "yolo"
current: side.approval === 2
onClicked: side.approvalRequested(2)
}
}
Text {
Layout.fillWidth: true
text: side.approval === 0 ? "every tool asks first"
: side.approval === 2 ? "never asks — writes go through"
: "sandbox and rules decide, asks on doubt"
color: Theme.textFaint
font.pixelSize: Theme.smallSize
wrapMode: Text.Wrap
}
RowLayout {
Layout.fillWidth: true
Layout.topMargin: 2
spacing: Theme.gap
Switch {
id: planSwitch
objectName: "planSwitch"
checked: side.planMode
implicitHeight: Theme.touchTarget
onClicked: side.planModeRequested(checked)
}
Text {
text: "Plan mode"
color: Theme.textDim
font.pixelSize: Theme.smallSize
}
Item { Layout.fillWidth: true }
}
Text {
Layout.fillWidth: true
visible: side.planMode
text: "read-only tools and a planning note"
color: Theme.textFaint
font.pixelSize: Theme.smallSize
wrapMode: Text.Wrap
}
}
// --- the plan the engine keeps ---
TodoPanel {
Layout.fillWidth: true
text: side.todo
}
Text {
Layout.fillWidth: true
Layout.topMargin: Theme.gap
text: "engine in-process · v" + Qt.application.version
color: Theme.textFaint
font.pixelSize: Theme.smallSize
elide: Text.ElideRight
}
}
}
}