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mirror of https://github.com/jesseduffield/lazygit.git synced 2024-12-12 11:15:00 +02:00
lazygit/pkg/gui/confirmation_panel.go
2022-01-04 09:07:15 +11:00

334 lines
9.2 KiB
Go

package gui
import (
"fmt"
"strings"
"github.com/jesseduffield/gocui"
"github.com/jesseduffield/lazygit/pkg/gui/types"
"github.com/jesseduffield/lazygit/pkg/theme"
"github.com/jesseduffield/lazygit/pkg/utils"
)
type createPopupPanelOpts struct {
hasLoader bool
editable bool
title string
prompt string
handleConfirm func() error
handleConfirmPrompt func(string) error
handleClose func() error
// when handlersManageFocus is true, do not return from the confirmation context automatically. It's expected that the handlers will manage focus, whether that means switching to another context, or manually returning the context.
handlersManageFocus bool
findSuggestionsFunc func(string) []*types.Suggestion
}
type askOpts struct {
title string
prompt string
handleConfirm func() error
handleClose func() error
handlersManageFocus bool
}
type promptOpts struct {
title string
initialContent string
handleConfirm func(string) error
findSuggestionsFunc func(string) []*types.Suggestion
}
func (gui *Gui) ask(opts askOpts) error {
return gui.PopupHandler.Ask(opts)
}
func (gui *Gui) prompt(opts promptOpts) error {
return gui.PopupHandler.Prompt(opts)
}
func (gui *Gui) createLoaderPanel(prompt string) error {
return gui.PopupHandler.Loader(prompt)
}
func (gui *Gui) wrappedConfirmationFunction(handlersManageFocus bool, function func() error) func() error {
return func() error {
if function != nil {
if err := function(); err != nil {
return err
}
}
if err := gui.closeConfirmationPrompt(handlersManageFocus); err != nil {
return err
}
return nil
}
}
func (gui *Gui) wrappedPromptConfirmationFunction(handlersManageFocus bool, function func(string) error, getResponse func() string) func() error {
return func() error {
if function != nil {
if err := function(getResponse()); err != nil {
return gui.surfaceError(err)
}
}
if err := gui.closeConfirmationPrompt(handlersManageFocus); err != nil {
return err
}
return nil
}
}
func (gui *Gui) closeConfirmationPrompt(handlersManageFocus bool) error {
// we've already closed it so we can just return
if !gui.Views.Confirmation.Visible {
return nil
}
if !handlersManageFocus {
if err := gui.returnFromContext(); err != nil {
return err
}
}
gui.clearConfirmationViewKeyBindings()
gui.Views.Confirmation.Visible = false
gui.Views.Suggestions.Visible = false
return nil
}
func (gui *Gui) getMessageHeight(wrap bool, message string, width int) int {
lines := strings.Split(message, "\n")
lineCount := 0
// if we need to wrap, calculate height to fit content within view's width
if wrap {
for _, line := range lines {
lineCount += len(line)/width + 1
}
} else {
lineCount = len(lines)
}
return lineCount
}
func (gui *Gui) getConfirmationPanelDimensions(wrap bool, prompt string) (int, int, int, int) {
width, height := gui.g.Size()
// we want a minimum width up to a point, then we do it based on ratio.
panelWidth := 4 * width / 7
minWidth := 80
if panelWidth < minWidth {
if width-2 < minWidth {
panelWidth = width - 2
} else {
panelWidth = minWidth
}
}
panelHeight := gui.getMessageHeight(wrap, prompt, panelWidth)
if panelHeight > height*3/4 {
panelHeight = height * 3 / 4
}
return width/2 - panelWidth/2,
height/2 - panelHeight/2 - panelHeight%2 - 1,
width/2 + panelWidth/2,
height/2 + panelHeight/2
}
func (gui *Gui) prepareConfirmationPanel(
title,
prompt string,
hasLoader bool,
findSuggestionsFunc func(string) []*types.Suggestion,
editable bool,
) error {
x0, y0, x1, y1 := gui.getConfirmationPanelDimensions(true, prompt)
// calling SetView on an existing view returns the same view, so I'm not bothering
// to reassign to gui.Views.Confirmation
_, err := gui.g.SetView("confirmation", x0, y0, x1, y1, 0)
if err != nil {
return err
}
gui.Views.Confirmation.HasLoader = hasLoader
if hasLoader {
gui.g.StartTicking()
}
gui.Views.Confirmation.Title = title
// for now we do not support wrapping in our editor
gui.Views.Confirmation.Wrap = !editable
gui.Views.Confirmation.FgColor = theme.GocuiDefaultTextColor
gui.findSuggestions = findSuggestionsFunc
if findSuggestionsFunc != nil {
suggestionsViewHeight := 11
suggestionsView, err := gui.g.SetView("suggestions", x0, y1+1, x1, y1+suggestionsViewHeight, 0)
if err != nil {
return err
}
suggestionsView.Wrap = false
suggestionsView.FgColor = theme.GocuiDefaultTextColor
gui.setSuggestions(findSuggestionsFunc(""))
suggestionsView.Visible = true
suggestionsView.Title = fmt.Sprintf(gui.Tr.SuggestionsTitle, gui.UserConfig.Keybinding.Universal.TogglePanel)
}
gui.g.Update(func(g *gocui.Gui) error {
return gui.pushContext(gui.State.Contexts.Confirmation)
})
return nil
}
func (gui *Gui) createPopupPanel(opts createPopupPanelOpts) error {
gui.g.Update(func(g *gocui.Gui) error {
// remove any previous keybindings
gui.clearConfirmationViewKeyBindings()
err := gui.prepareConfirmationPanel(
opts.title,
opts.prompt,
opts.hasLoader,
opts.findSuggestionsFunc,
opts.editable,
)
if err != nil {
return err
}
confirmationView := gui.Views.Confirmation
confirmationView.Editable = opts.editable
confirmationView.Editor = gocui.EditorFunc(gui.defaultEditor)
if opts.editable {
textArea := confirmationView.TextArea
textArea.Clear()
textArea.TypeString(opts.prompt)
confirmationView.RenderTextArea()
} else {
if err := gui.renderStringSync(confirmationView, opts.prompt); err != nil {
return err
}
}
return gui.setKeyBindings(opts)
})
return nil
}
func (gui *Gui) setKeyBindings(opts createPopupPanelOpts) error {
actions := utils.ResolvePlaceholderString(
gui.Tr.CloseConfirm,
map[string]string{
"keyBindClose": "esc",
"keyBindConfirm": "enter",
},
)
gui.renderString(gui.Views.Options, actions)
var onConfirm func() error
if opts.handleConfirmPrompt != nil {
onConfirm = gui.wrappedPromptConfirmationFunction(opts.handlersManageFocus, opts.handleConfirmPrompt, func() string { return gui.Views.Confirmation.TextArea.GetContent() })
} else {
onConfirm = gui.wrappedConfirmationFunction(opts.handlersManageFocus, opts.handleConfirm)
}
type confirmationKeybinding struct {
viewName string
key interface{}
handler func() error
}
keybindingConfig := gui.UserConfig.Keybinding
onSuggestionConfirm := gui.wrappedPromptConfirmationFunction(
opts.handlersManageFocus,
opts.handleConfirmPrompt,
gui.getSelectedSuggestionValue,
)
confirmationKeybindings := []confirmationKeybinding{
{
viewName: "confirmation",
key: gui.getKey(keybindingConfig.Universal.Confirm),
handler: onConfirm,
},
{
viewName: "confirmation",
key: gui.getKey(keybindingConfig.Universal.ConfirmAlt1),
handler: onConfirm,
},
{
viewName: "confirmation",
key: gui.getKey(keybindingConfig.Universal.Return),
handler: gui.wrappedConfirmationFunction(opts.handlersManageFocus, opts.handleClose),
},
{
viewName: "confirmation",
key: gui.getKey(keybindingConfig.Universal.TogglePanel),
handler: func() error {
if len(gui.State.Suggestions) > 0 {
return gui.replaceContext(gui.State.Contexts.Suggestions)
}
return nil
},
},
{
viewName: "suggestions",
key: gui.getKey(keybindingConfig.Universal.Confirm),
handler: onSuggestionConfirm,
},
{
viewName: "suggestions",
key: gui.getKey(keybindingConfig.Universal.ConfirmAlt1),
handler: onSuggestionConfirm,
},
{
viewName: "suggestions",
key: gui.getKey(keybindingConfig.Universal.Return),
handler: gui.wrappedConfirmationFunction(opts.handlersManageFocus, opts.handleClose),
},
{
viewName: "suggestions",
key: gui.getKey(keybindingConfig.Universal.TogglePanel),
handler: func() error { return gui.replaceContext(gui.State.Contexts.Confirmation) },
},
}
for _, binding := range confirmationKeybindings {
if err := gui.g.SetKeybinding(binding.viewName, nil, binding.key, gocui.ModNone, gui.wrappedHandler(binding.handler)); err != nil {
return err
}
}
return nil
}
func (gui *Gui) clearConfirmationViewKeyBindings() {
keybindingConfig := gui.UserConfig.Keybinding
_ = gui.g.DeleteKeybinding("confirmation", gui.getKey(keybindingConfig.Universal.Confirm), gocui.ModNone)
_ = gui.g.DeleteKeybinding("confirmation", gui.getKey(keybindingConfig.Universal.ConfirmAlt1), gocui.ModNone)
_ = gui.g.DeleteKeybinding("confirmation", gui.getKey(keybindingConfig.Universal.Return), gocui.ModNone)
_ = gui.g.DeleteKeybinding("suggestions", gui.getKey(keybindingConfig.Universal.Confirm), gocui.ModNone)
_ = gui.g.DeleteKeybinding("suggestions", gui.getKey(keybindingConfig.Universal.ConfirmAlt1), gocui.ModNone)
_ = gui.g.DeleteKeybinding("suggestions", gui.getKey(keybindingConfig.Universal.Return), gocui.ModNone)
}
func (gui *Gui) wrappedHandler(f func() error) func(g *gocui.Gui, v *gocui.View) error {
return func(g *gocui.Gui, v *gocui.View) error {
return f()
}
}
func (gui *Gui) createErrorPanel(message string) error {
return gui.PopupHandler.Error(message)
}
func (gui *Gui) surfaceError(err error) error {
if err == nil {
return nil
}
return gui.createErrorPanel(err.Error())
}