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lazygit/pkg/gui/view_helpers.go

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package gui
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import (
"fmt"
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"github.com/jesseduffield/gocui"
"github.com/jesseduffield/lazygit/pkg/gui/keybindings"
"github.com/jesseduffield/lazygit/pkg/gui/types"
"github.com/jesseduffield/lazygit/pkg/tasks"
"github.com/jesseduffield/lazygit/pkg/utils"
"github.com/spkg/bom"
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)
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func (gui *Gui) resetOrigin(v *gocui.View) error {
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_ = v.SetCursor(0, 0)
return v.SetOrigin(0, 0)
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}
// Returns the number of lines that we should read initially from a cmd task so
// that the scrollbar has the correct size, along with the number of lines after
// which the view is filled and we can do a first refresh.
func (gui *Gui) linesToReadFromCmdTask(v *gocui.View) tasks.LinesToRead {
_, height := v.Size()
_, oy := v.Origin()
linesForFirstRefresh := height + oy + 10
// We want to read as many lines initially as necessary to let the
// scrollbar go to its minimum height, so that the scrollbar thumb doesn't
// change size as you scroll down.
minScrollbarHeight := 2
linesToReadForAccurateScrollbar := height*(height-1)/minScrollbarHeight + oy
// However, cap it at some arbitrary max limit, so that we don't get
// performance problems for huge monitors or tiny font sizes
if linesToReadForAccurateScrollbar > 5000 {
linesToReadForAccurateScrollbar = 5000
}
return tasks.LinesToRead{
Total: linesToReadForAccurateScrollbar,
InitialRefreshAfter: linesForFirstRefresh,
}
}
func (gui *Gui) cleanString(s string) string {
output := string(bom.Clean([]byte(s)))
return utils.NormalizeLinefeeds(output)
}
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func (gui *Gui) setViewContent(v *gocui.View, s string) {
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v.SetContent(gui.cleanString(s))
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}
// renderString resets the origin of a view and sets its content
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func (gui *Gui) renderString(view *gocui.View, s string) error {
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if err := view.SetOrigin(0, 0); err != nil {
return err
}
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if err := view.SetCursor(0, 0); err != nil {
return err
}
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gui.setViewContent(view, s)
return nil
}
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func (gui *Gui) currentViewName() string {
currentView := gui.g.CurrentView()
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if currentView == nil {
return ""
}
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return currentView.Name()
}
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func (gui *Gui) resizeCurrentPopupPanel() error {
v := gui.g.CurrentView()
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if v == nil {
return nil
}
if v == gui.Views.Menu {
gui.resizeMenu()
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} else if v == gui.Views.Confirmation || v == gui.Views.Suggestions {
gui.resizeConfirmationPanel()
} else if gui.isPopupPanel(v.Name()) {
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return gui.resizePopupPanel(v, v.Buffer())
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}
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return nil
}
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func (gui *Gui) resizePopupPanel(v *gocui.View, content string) error {
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x0, y0, x1, y1 := gui.getConfirmationPanelDimensions(v.Wrap, content)
_, err := gui.g.SetView(v.Name(), x0, y0, x1, y1, 0)
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return err
}
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func (gui *Gui) resizeMenu() {
itemCount := gui.State.Contexts.Menu.GetList().Len()
offset := 3
panelWidth := gui.getConfirmationPanelWidth()
x0, y0, x1, y1 := gui.getConfirmationPanelDimensionsForContentHeight(panelWidth, itemCount+offset)
menuBottom := y1 - offset
_, _ = gui.g.SetView(gui.Views.Menu.Name(), x0, y0, x1, menuBottom, 0)
tooltipTop := menuBottom + 1
tooltipHeight := gui.getMessageHeight(true, gui.State.Contexts.Menu.GetSelected().Tooltip, panelWidth) + 2 // plus 2 for the frame
_, _ = gui.g.SetView(gui.Views.Tooltip.Name(), x0, tooltipTop, x1, tooltipTop+tooltipHeight-1, 0)
}
func (gui *Gui) resizeConfirmationPanel() {
suggestionsViewHeight := 0
if gui.Views.Suggestions.Visible {
suggestionsViewHeight = 11
}
panelWidth := gui.getConfirmationPanelWidth()
prompt := gui.Views.Confirmation.Buffer()
wrap := true
if gui.Views.Confirmation.Editable {
prompt = gui.Views.Confirmation.TextArea.GetContent()
wrap = false
}
panelHeight := gui.getMessageHeight(wrap, prompt, panelWidth) + suggestionsViewHeight
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x0, y0, x1, y1 := gui.getConfirmationPanelDimensionsAux(panelWidth, panelHeight)
confirmationViewBottom := y1 - suggestionsViewHeight
_, _ = gui.g.SetView(gui.Views.Confirmation.Name(), x0, y0, x1, confirmationViewBottom, 0)
suggestionsViewTop := confirmationViewBottom + 1
_, _ = gui.g.SetView(gui.Views.Suggestions.Name(), x0, suggestionsViewTop, x1, suggestionsViewTop+suggestionsViewHeight, 0)
}
func (gui *Gui) globalOptionsMap() map[string]string {
keybindingConfig := gui.c.UserConfig.Keybinding
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return map[string]string{
fmt.Sprintf("%s/%s", keybindings.Label(keybindingConfig.Universal.ScrollUpMain), keybindings.Label(keybindingConfig.Universal.ScrollDownMain)): gui.c.Tr.LcScroll,
fmt.Sprintf("%s %s %s %s", keybindings.Label(keybindingConfig.Universal.PrevBlock), keybindings.Label(keybindingConfig.Universal.NextBlock), keybindings.Label(keybindingConfig.Universal.PrevItem), keybindings.Label(keybindingConfig.Universal.NextItem)): gui.c.Tr.LcNavigate,
keybindings.Label(keybindingConfig.Universal.Return): gui.c.Tr.LcCancel,
keybindings.Label(keybindingConfig.Universal.Quit): gui.c.Tr.LcQuit,
keybindings.Label(keybindingConfig.Universal.OptionMenuAlt1): gui.c.Tr.LcMenu,
fmt.Sprintf("%s-%s", keybindings.Label(keybindingConfig.Universal.JumpToBlock[0]), keybindings.Label(keybindingConfig.Universal.JumpToBlock[len(keybindingConfig.Universal.JumpToBlock)-1])): gui.c.Tr.LcJump,
fmt.Sprintf("%s/%s", keybindings.Label(keybindingConfig.Universal.ScrollLeft), keybindings.Label(keybindingConfig.Universal.ScrollRight)): gui.c.Tr.LcScrollLeftRight,
}
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}
func (gui *Gui) isPopupPanel(viewName string) bool {
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return viewName == "commitMessage" || viewName == "confirmation" || viewName == "menu"
}
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func (gui *Gui) popupPanelFocused() bool {
return gui.isPopupPanel(gui.currentViewName())
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}
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func (gui *Gui) onViewTabClick(windowName string, tabIndex int) error {
tabs := gui.viewTabMap()[windowName]
if len(tabs) == 0 {
return nil
}
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viewName := tabs[tabIndex].ViewName
context, ok := gui.contextForView(viewName)
if !ok {
return nil
}
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return gui.c.PushContext(context)
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}
func (gui *Gui) contextForView(viewName string) (types.Context, bool) {
view, err := gui.g.View(viewName)
if err != nil {
return nil, false
}
for _, context := range gui.State.Contexts.Flatten() {
if context.GetViewName() == view.Name() {
return context, true
}
}
return nil, false
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}
func (gui *Gui) handleNextTab() error {
view := getTabbedView(gui)
if view == nil {
return nil
}
for _, context := range gui.State.Contexts.Flatten() {
if context.GetViewName() == view.Name() {
return gui.onViewTabClick(
context.GetWindowName(),
utils.ModuloWithWrap(view.TabIndex+1, len(view.Tabs)),
)
}
}
return nil
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}
func (gui *Gui) handlePrevTab() error {
view := getTabbedView(gui)
if view == nil {
return nil
}
for _, context := range gui.State.Contexts.Flatten() {
if context.GetViewName() == view.Name() {
return gui.onViewTabClick(
context.GetWindowName(),
utils.ModuloWithWrap(view.TabIndex-1, len(view.Tabs)),
)
}
}
return nil
}
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func getTabbedView(gui *Gui) *gocui.View {
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// It safe assumption that only static contexts have tabs
context := gui.currentStaticContext()
view, _ := gui.g.View(context.GetViewName())
return view
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}
func (gui *Gui) render() {
gui.c.OnUIThread(func() error { return nil })
}