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// Copyright 2017-2025 WIT.COM Inc. All rights reserved.
// Use of this source code is governed by the GPL 3.0
package main
// simulates a dropdown menu in gocui
import (
"fmt"
"strings"
"github.com/awesome-gocui/gocui"
log "go.wit.com/log"
"go.wit.com/toolkits/tree"
"go.wit.com/widget"
)
// create a new widget in the binary tree
func makeNewFlagWidget(wId int) *guiWidget {
n := new(tree.Node)
n.WidgetType = widget.Flag
n.WidgetId = wId
n.ParentId = 0
// store the internal toolkit information
tk := new(guiWidget)
tk.frame = true
tk.node = n
if tk.node.Parent == nil {
tk.node.Parent = me.treeRoot
}
// set the name used by gocui to the id
tk.cuiName = fmt.Sprintf("%d DR", wId)
tk.setColorInput()
// add this new widget on the binary tree
tk.parent = me.treeRoot.TK.(*guiWidget)
if tk.parent == nil {
panic("makeNewFlagWidget() didn't get treeRoot guiWidget")
} else {
tk.parent.children = append(tk.parent.children, tk)
}
n.TK = tk
return tk
}
func (tk *guiWidget) showDropdown() {
if me.dropdown.tk == nil {
// should only happen once
me.dropdown.tk = makeNewFlagWidget(me.dropdown.wId)
me.dropdown.tk.dumpWidget("init() dropdown")
}
if me.dropdown.tk == nil {
log.Log(GOCUI, "showDropdown() Is Broken!")
return
}
// todo: fix this after switching to protobuf
me.dropdown.items = []string{} // zero out whatever was there before
for i, s := range tk.node.Strings() {
log.Log(GOCUI, "showDropdown()", tk.String(), i, s)
me.dropdown.items = append(me.dropdown.items, s)
}
log.Log(GOCUI, "new dropdown items should be set to:", me.dropdown.items)
startW, startH := tk.Position()
log.Log(GOCUI, "showDropdown() SHOWING AT W,H=", startW, startH)
me.dropdown.tk.Hide()
me.dropdown.tk.MoveToOffset(startW+3, startH+2)
me.dropdown.tk.labelN = strings.Join(me.dropdown.items, "\n")
me.dropdown.tk.Show()
me.dropdown.active = true
me.dropdown.callerTK = tk
r := me.dropdown.tk.gocuiSize // set the 'full' size so that mouse clicks are sent here
me.dropdown.tk.full.w0 = r.w0
me.dropdown.tk.full.w1 = r.w1
me.dropdown.tk.full.h0 = r.h0
me.dropdown.tk.full.h1 = r.h1
me.dropdown.tk.dumpWidget("showDropdown()")
}
// if there is a drop down view active, treat it like a dialog box and close it
func (w *guiWidget) dropdownClicked(mouseW, mouseH int) string {
w.Hide()
me.dropdown.active = false
// only need height to figure out what line in the dropdown menu the user clicked
_, startH := w.Position()
itemNumber := mouseH - startH
items := me.dropdown.items
// log.Log(GOCUI, "dropdownClicked() look for item", itemNumber, "len(items) =", len(items))
if itemNumber < 1 {
return ""
}
if len(items) >= itemNumber {
// log.Log(GOCUI, "dropdownClicked() found", items[itemNumber-1])
if items[itemNumber-1] != "" {
if me.dropdown.tk != nil {
// log.Log(GOCUI, "dropdownClicked() send event for", me.dropdownW.cuiName, me.dropdownW.node.WidgetType)
me.dropdown.callerTK.SetText(items[itemNumber-1])
me.dropdown.callerTK.node.SetCurrentS(items[itemNumber-1])
me.myTree.SendUserEvent(me.dropdown.callerTK.node)
}
}
return items[itemNumber-1]
}
return ""
}
/*
func dropdownUnclicked(w, h int) {
var d *guiWidget
// examine everything under X & Y on the screen)
for _, tk := range findByXY(w, h) {
// tk.dumpWidget("dropdownUnclicked()")
if tk.node.WidgetType == widget.Dropdown {
d = tk
}
}
if d == nil {
// log.Log(GOCUI, fmt.Sprintf("dropdownUnclicked() there was no dropdown widget at (w=%d h=%d)", mouseW, mouseH))
return
}
// log.Log(GOCUI, "dropdownUnclicked()", d.node.Strings(), "end. now try to enable me.dropdownV")
}
*/
func (tk *guiWidget) forceSizes(r *rectType) {
tk.gocuiSize.w0 = r.w0
tk.gocuiSize.w1 = r.w1
tk.gocuiSize.h0 = r.h0
tk.gocuiSize.h1 = r.h1
tk.full.w0 = r.w0
tk.full.w1 = r.w1
tk.full.h0 = r.h0
tk.full.h1 = r.h1
tk.force.w0 = r.w0
tk.force.w1 = r.w1
tk.force.h0 = r.h0
tk.force.h1 = r.h1
}
func (callertk *guiWidget) showTextbox() {
if me.textbox.tk == nil {
// should only happen once
me.textbox.tk = makeNewFlagWidget(me.textbox.wId)
me.textbox.tk.dumpWidget("init() textbox")
}
if me.textbox.tk == nil {
log.Log(GOCUI, "showTextbox() Is Broken")
return
}
tk := me.textbox.tk
r := new(rectType)
// startW, startH := tk.Position()
r.w0 = callertk.gocuiSize.w0 + 4
r.h0 = callertk.gocuiSize.h0 + 3
r.w1 = r.w0 + 24
r.h1 = r.h0 + 2
me.textbox.tk.forceSizes(r)
me.textbox.tk.dumpWidget("after sizes")
me.textbox.tk.Show() // actually makes the gocui view. TODO: redo this
if me.textbox.tk.v == nil {
log.Info("wtf went wrong")
return
}
me.textbox.tk.setColorModal()
me.textbox.tk.v.Editable = true
me.textbox.tk.v.Wrap = true
me.baseGui.SetView(me.textbox.tk.cuiName, r.w0, r.h0, r.w1, r.h1, 0)
me.baseGui.SetCurrentView(me.textbox.tk.v.Name())
// bind the enter key to a function so we can close the textbox
me.baseGui.SetKeybinding(me.textbox.tk.v.Name(), gocui.KeyEnter, gocui.ModNone, theCloseTheTextbox)
me.textbox.active = true
me.textbox.callerTK = callertk
tk.dumpWidget("showTextbox()")
}
func theCloseTheTextbox(g *gocui.Gui, v *gocui.View) error {
textboxClosed()
return nil
}
// updates the text and sends an event back to the application
func textboxClosed() {
// get the text the user entered
newtext := "testing"
if me.textbox.tk.v == nil {
newtext = ""
} else {
newtext = me.textbox.tk.v.ViewBuffer()
}
newtext = strings.TrimSpace(newtext)
me.textbox.active = false
me.textbox.tk.Hide()
log.Info("textbox closed", newtext)
if me.clock.tk.v != nil {
me.baseGui.SetCurrentView("help")
} else {
me.baseGui.SetCurrentView("msg")
}
// change the text of the caller widget
me.textbox.callerTK.SetText(newtext)
me.textbox.callerTK.node.SetCurrentS(newtext)
// send an event from the plugin with the new string
me.myTree.SendUserEvent(me.textbox.callerTK.node)
}
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