gocui/eventMouse.go

// Copyright 2017-2025 WIT.COM Inc. All rights reserved.
// Use of this source code is governed by the GPL 3.0

package main

import (
	"fmt"
	"time"

	"github.com/awesome-gocui/gocui"

	"go.wit.com/log"
	"go.wit.com/widget"
)

func mouseUp(g *gocui.Gui, v *gocui.View) error {
	// useful to debug everything that is being clicked on
	/*
		for _, tk := range findByXY(w, h) {
			tk.dumpWidget("mouseUp()")
		}
	*/

	me.mouse.mouseUp = true
	// me.mouse.globalMouseDown = false
	me.mouse.currentDrag = nil

	if me.mouse.double && (time.Since(me.mouse.down) < me.mouse.doubletime) {
		me.mouse.double = false
		doMouseDoubleClick(me.mouse.downW, me.mouse.downH)
		return nil
	}
	me.mouse.double = false

	if time.Since(me.mouse.down) < me.mouse.clicktime {
		doMouseClick(me.mouse.downW, me.mouse.downH)
	}
	return nil
}

// this is where you have to figure out what
// widget was underneath so you can active
// the right response for the toolkit user's app
func mouseDown(g *gocui.Gui, v *gocui.View) error {
	if me.mouse.mouseUp {
		if time.Since(me.mouse.down) < me.mouse.doubletime {
			me.mouse.double = true
		}
		// me.mouse.globalMouseDown = true
		me.mouse.mouseUp = false
		me.mouse.down = time.Now()
		w, h := g.MousePosition()
		me.mouse.downW = w
		me.mouse.downH = h

		win := findWindowUnderMouse()
		if win != nil {
			w, h := g.MousePosition()
			s := fmt.Sprintf("mouse(%d,%d) ", w, h)
			offW := win.gocuiSize.w1 - w
			offH := win.gocuiSize.h1 - h
			s += fmt.Sprintf("corner(%d,%d)", offW, offH)
			if (offW < 3) && (offH < 3) {
				// log.Info("mouse down resize on ", s)
				me.mouse.resize = true
				// store the stdout corner for computing the drag size
				me.stdout.lastW = me.stdout.tk.gocuiSize.w0
				me.stdout.lastH = me.stdout.tk.gocuiSize.h0
			} else {
				// log.Info("mouse down resize off", s)
				me.mouse.resize = false
			}
		}
		return nil
	}

	if time.Since(me.mouse.down) < me.mouse.clicktime {
		log.Info("not yet")
		return nil
	}

	w, h := g.MousePosition()

	// if the dropdown is active, never do anything else
	if me.dropdown.active {
		log.Info("mouseDown() stopping here. dropdwon menu is in effect")
		for _, tk := range findByXY(w, h) {
			if (tk.node.WidgetType == widget.Flag) && (tk == me.dropdown.tk) {
				// log.Info("SENDING CLICK TO Flag (dropdown)")
				tk.doWidgetClick(w, h)
				me.dropdown.active = false
				return nil
			}
		}
		log.Info("never found dropdown at", w, h)
		return nil
	}

	// if the textbox is active, never do anything else
	if me.textbox.active {
		log.Info("mouseDown() stopping here. textbox widget is open")
		for _, tk := range findByXY(w, h) {
			if (tk.node.WidgetType == widget.Flag) && (tk == me.textbox.tk) {
				me.textbox.active = false
				textboxClosed()
				return nil
			}
		}
		log.Info("never found textbox at", w, h)
		return nil
	}

	// figre out what window this is
	tk := findWindowUnderMouse()
	if tk == nil {
		log.Info("mouseDown() nothing to click on at", w, h)
		return nil
	}
	tk.makeWindowActive()
	// log.Info("SENDING mouseDown() to findWindowUnderMouse()")
	if tk.node.WidgetType == widget.Window {
		// check to see if this is a direct click on a widget
		for _, tk := range tk.findByXYreal(w, h) {
			// tk.dumpWidget("mouseDown()")
			if tk.node.WidgetType == widget.Button {
				// log.Info("SENDING CLICK TO Button")
				tk.doWidgetClick(w, h)
				return nil
			}
			if tk.node.WidgetType == widget.Checkbox {
				// log.Info("SENDING CLICK TO Checkbox")
				tk.doWidgetClick(w, h)
				return nil
			}
			if tk.node.WidgetType == widget.Dropdown {
				// log.Info("SENDING CLICK TO Dropdown")
				tk.doWidgetClick(w, h)
				return nil
			}
			if tk.node.WidgetType == widget.Textbox {
				// log.Info("SENDING CLICK TO Textbox")
				tk.doWidgetClick(w, h)
				return nil
			}
		}
	}
	me.mouse.currentDrag = tk
	return nil
}