From b25b99be4d0f8351f43cd9103ba820cc784ef6df Mon Sep 17 00:00:00 2001
From: Levi Neely <lneely@pascom.net>
Date: Fri, 4 Sep 2026 14:23:58 +0200
Subject: [PATCH] kde/gui: add Acme-style mouse chording to prompt input

Implement proper Plan 9/Acme mouse chording in the input area:
- B1 = select (TextArea default)
- B2 = execute selection as prompt
- B3 = plumb selection or context menu
- B1+B2 = cut (chord while selecting)
- B1+B3 = paste (chord while selecting)

Uses MouseArea overlay that detects when B1 is held while B2/B3
is pressed to trigger chord actions. Context menu items now show
the chord shortcuts (Cut B1+B2, Paste B1+B3).

Placeholder text shows the mouse action reference.
---
 kde/gui/ChatPane.qml | 85 +++++++++++++++++++++++++++++++++++---------
 1 file changed, 69 insertions(+), 16 deletions(-)

diff --git a/kde/gui/ChatPane.qml b/kde/gui/ChatPane.qml
index 3598631..fc3214a 100644
--- a/kde/gui/ChatPane.qml
+++ b/kde/gui/ChatPane.qml
@@ -307,7 +307,7 @@ Item {
                     ToolTip.text: "Clear input"
                 }
 
-                // TextArea in ScrollView for overflow, with context menu overlay
+                // TextArea in ScrollView for overflow, with mouse chording
                 Item {
                     Layout.fillWidth: true
                     Layout.maximumHeight: 200
@@ -327,7 +327,7 @@ Item {
                                 if (!ollie.activeSessionId) return "No session"
                                 if (!ollie.activeAgentId) return "No agent"
                                 if (ollie.isSessionPaused(ollie.activeSessionId)) return "Session paused"
-                                return "Message... (B2=execute selection, B3=plumb)"
+                                return "B1=sel  B2=exec  B3=plumb  B1+B2=cut  B1+B3=paste"
                             }
                             enabled: ollie.daemonConnected && ollie.activeSessionId !== "" && ollie.activeAgentId !== "" && !ollie.isSessionPaused(ollie.activeSessionId)
                             wrapMode: TextEdit.Wrap
@@ -350,23 +350,76 @@ Item {
                                     event.accepted = true
                                 }
                             }
+                        }
+                    }
 
-                            // Acme-style mouse handling in input
-                            TapHandler {
-                                acceptedButtons: Qt.MiddleButton
-                                onTapped: {
-                                    // B2: Execute selection as prompt immediately
-                                    var sel = promptInput.selectedText
-                                    if (sel && sel.trim() !== "") {
-                                        ollie.submit(sel.trim())
-                                    }
+                    // Acme-style mouse chording overlay
+                    // B1 = select (handled by TextArea)
+                    // B2 = execute selection
+                    // B3 = plumb selection / context menu
+                    // B1+B2 = cut (snarf)
+                    // B1+B3 = paste
+                    MouseArea {
+                        id: chordArea
+                        anchors.fill: parent
+                        acceptedButtons: Qt.MiddleButton | Qt.RightButton
+                        propagateComposedEvents: true
+                        cursorShape: Qt.IBeamCursor
+
+                        // Track if B1 (left) is currently held for chord detection
+                        property bool leftHeld: false
+
+                        // We can't directly detect B1 here since TextArea handles it,
+                        // but we can check mouse.buttons in the handlers
+                        onPressed: function(mouse) {
+                            // Check if this is a chord (B1 already held)
+                            if (mouse.buttons & Qt.LeftButton) {
+                                leftHeld = true
+                                if (mouse.button === Qt.MiddleButton) {
+                                    // B1+B2 = cut
+                                    promptInput.cut()
+                                    mouse.accepted = true
+                                    return
+                                } else if (mouse.button === Qt.RightButton) {
+                                    // B1+B3 = paste
+                                    promptInput.paste()
+                                    mouse.accepted = true
+                                    return
                                 }
                             }
+                            leftHeld = false
+                            mouse.accepted = false  // Let it propagate for non-chord
+                        }
 
-                            TapHandler {
-                                acceptedButtons: Qt.RightButton
-                                onTapped: promptContextMenu.popup()
+                        onClicked: function(mouse) {
+                            // Only handle non-chord clicks
+                            if (leftHeld) {
+                                leftHeld = false
+                                return
                             }
+
+                            if (mouse.button === Qt.MiddleButton) {
+                                // B2: Execute selection as prompt
+                                var sel = promptInput.selectedText
+                                if (sel && sel.trim() !== "") {
+                                    ollie.submit(sel.trim())
+                                } else {
+                                    // No selection - paste from clipboard and execute?
+                                    // Or just ignore. For now, ignore.
+                                }
+                            } else if (mouse.button === Qt.RightButton) {
+                                // B3: Plumb selection or show context menu
+                                var sel = promptInput.selectedText
+                                if (sel && sel.trim() !== "" && plumber.available()) {
+                                    plumber.plumb(sel.trim())
+                                } else {
+                                    promptContextMenu.popup()
+                                }
+                            }
+                        }
+
+                        onReleased: {
+                            leftHeld = false
                         }
                     }
 
@@ -390,7 +443,7 @@ Item {
                         }
                         MenuSeparator {}
                         MenuItem {
-                            text: "Cut"
+                            text: "Cut (B1+B2)"
                             enabled: promptInput.selectedText.length > 0
                             onTriggered: promptInput.cut()
                         }
@@ -400,7 +453,7 @@ Item {
                             onTriggered: promptInput.copy()
                         }
                         MenuItem {
-                            text: "Paste"
+                            text: "Paste (B1+B3)"
                             enabled: promptInput.canPaste
                             onTriggered: promptInput.paste()
                         }