1 files changed, 185 insertions, 0 deletions
diff --git a/eventMouseDrag.go b/eventMouseDrag.go
new file mode 100644
index 0000000..e976d22
--- /dev/null
+++ b/eventMouseDrag.go
@@ -0,0 +1,185 @@
+// Copyright 2017-2025 WIT.COM Inc. All rights reserved.
+// Use of this source code is governed by the GPL 3.0
+
+// 2025 note by jcarr:
+// this is one of the coolest things ever worked with.
+// Personally, I've been working on making a gocui GO plugin
+// so I can use it as a generalized console GUI toolkit.
+//
+// Well done everyone that has contributed to this gocui project !!!
+// I am in your debt. Happy hacking & peace.
+
+package main
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/awesome-gocui/gocui"
+	log "go.wit.com/log"
+	"go.wit.com/widget"
+)
+
+// this function uses the mouse position to highlight & unhighlight things
+// this is run every time the user moves the mouse over the terminal window
+func mouseMove(g *gocui.Gui) {
+	me.ok = true // this tells init() it's okay to work with gocui
+	// very useful for debugging in the past. also, just fun
+	if me.supermouse {
+		w, h := g.MousePosition()
+		for _, tk := range findByXY(w, h) {
+			s := fmt.Sprintf("SM (%3d,%3d)", w, h)
+			tk.dumpWidget(s)
+		}
+	}
+
+	if time.Since(me.mouse.down) < me.mouse.clicktime {
+		// log.Info("not yet")
+		return
+	}
+
+	if me.dropdown.active || me.textbox.active {
+		// can't drag or do anything when dropdown or textbox are visible
+		return
+	}
+	// okay, the mouse is down and it has been long enough
+	// the user is trying to drag something. let's figure out what
+
+	w, h := g.MousePosition()
+	// toggle off all highlight vies except for whatever is under the mouse
+	for _, view := range g.Views() {
+		view.Highlight = false
+	}
+
+	if v, err := g.ViewByPosition(w, h); err == nil {
+		v.Highlight = true
+	}
+
+	// create the 'msg' view if it does not yet exist // TODO: put this somewhere more correct
+	if widgetView, _ := g.View("msg"); widgetView == nil {
+		if createStdout(g) {
+			return
+		}
+		return
+	}
+
+	/*
+		if me.mouse.globalMouseDown && (me.dropdown.active || me.textbox.active) {
+			log.Info("can't drag while dropdown or textbox are active", w, h)
+			return
+		}
+	*/
+	if me.mouse.mouseUp {
+		return
+	}
+
+	//	if me.mouse.globalMouseDown {
+	// log.Info("msgMouseDown == true")
+	// plugin will segfault if you don't keep this inside a check for msgMouseDown
+	// don't move this code out of here
+	var found bool = false
+	if me.mouse.currentDrag != nil {
+		// me.mouse.currentDrag.dumpWidget(fmt.Sprintf("MM (%3d,%3d)", w, h))
+		me.mouse.currentDrag.moveNew()
+		return
+	}
+	// new function that is smarter
+	if tk := findWindowUnderMouse(); tk != nil {
+		tk.setAsDragging()
+		return
+	}
+	// first look for windows
+	for _, tk := range findByXY(w, h) {
+		if tk.node.WidgetType == widget.Window {
+			tk.setAsDragging()
+			return
+		}
+	}
+
+	// now look for the STDOUT window
+	for _, tk := range findByXY(w, h) {
+		if tk.node.WidgetType == widget.Flag {
+			tk.setAsDragging()
+			return
+		}
+	}
+	for _, tk := range findByXY(w, h) {
+		if tk.node.WidgetType == widget.Stdout {
+			tk.setAsDragging()
+			// tk.moveNew()
+			return
+		}
+		/*
+			if tk.node.WidgetType == widget.Label {
+				me.mouse.currentDrag = tk
+				// tk.moveNew()
+				return
+			}
+		*/
+		found = true
+	}
+	if !found {
+		log.Info(fmt.Sprintf("findByXY() empty. nothing to move at (%d,%d)", w, h))
+	}
+}
+
+func (tk *guiWidget) setAsDragging() {
+	me.mouse.currentDrag = tk
+	tk.lastW = tk.gocuiSize.w0
+	tk.lastH = tk.gocuiSize.h0
+}
+
+// this is how the window gets dragged around
+func (tk *guiWidget) moveNew() {
+	w, h := me.baseGui.MousePosition()
+	if tk.node.WidgetType == widget.Window {
+		tk.window.wasDragged = true
+
+		// compute the new location based off how far the mouse has moved
+		// since the mouse button was pressed down
+		newW := tk.lastW + w - me.mouse.downW
+		newH := tk.lastH + h - me.mouse.downH
+		tk.redrawWindow(newW, newH)
+
+		setThingsOnTop() // sets help, Stdout, etc on the top after windows have been redrawn
+		return
+	}
+	if tk.node.WidgetType == widget.Flag {
+		me.baseGui.SetView(tk.cuiName, w-3, h-3, w+20, h+20, 0)
+		// tk.verifyRect()
+		s := fmt.Sprintf("move(%dx%d) %s ###", w, h, tk.cuiName)
+		tk.dumpWidget(s)
+		return
+	}
+	if tk.node.WidgetType == widget.Stdout {
+		if me.mouse.resize {
+			newW := w - me.stdout.lastW
+			newH := h - me.stdout.lastH
+			me.stdout.w = newW
+			me.stdout.h = newH
+			log.Info("Resize true", w, h, newW, newH)
+			// me.stdout.lastW = w - me.stdout.mouseOffsetW
+			// me.stdout.lastH = h - me.stdout.mouseOffsetH
+			tk.relocateStdout(me.stdout.lastW, me.stdout.lastH)
+		} else {
+			// compute the new location based off how far the mouse has moved
+			// since the mouse button was pressed down
+			newW := tk.lastW + w - me.mouse.downW
+			newH := tk.lastH + h - me.mouse.downH
+			tk.relocateStdout(newW, newH)
+		}
+	}
+	// always place the help menu on top
+	setThingsOnTop() // sets help, Stdout, etc on the top after windows have been redrawn
+}
+
+func createStdout(g *gocui.Gui) bool {
+	makeOutputWidget(g, "this is a create before a mouse click")
+	if me.stdout.tk != nil {
+		msg := fmt.Sprintf("test out gocuiEvent() %d\n", me.ecount)
+		// me.logStdout.v.Write([]byte(msg))
+		me.stdout.tk.Write([]byte(msg))
+		log.Log(NOW, "logStdout test out")
+	}
+	return true
+}