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package gui
import (
"fmt"
"math"
"strings"
"github.com/jesseduffield/gocui"
"github.com/jesseduffield/lazygit/pkg/commands"
"github.com/jesseduffield/lazygit/pkg/utils"
)
const HORIZONTAL_SCROLL_FACTOR = 3
// these views need to be re-rendered when the screen mode changes. The commits view,
// for example, will show authorship information in half and full screen mode.
func (gui *Gui) rerenderViewsWithScreenModeDependentContent() error {
for _, view := range []*gocui.View{gui.Views.Branches, gui.Views.Commits} {
if err := gui.rerenderView(view); err != nil {
return err
}
}
return nil
}
// TODO: GENERICS
func nextIntInCycle(sl []WindowMaximisation, current WindowMaximisation) WindowMaximisation {
for i, val := range sl {
if val == current {
if i == len(sl)-1 {
return sl[0]
}
return sl[i+1]
}
}
return sl[0]
}
// TODO: GENERICS
func prevIntInCycle(sl []WindowMaximisation, current WindowMaximisation) WindowMaximisation {
for i, val := range sl {
if val == current {
if i > 0 {
return sl[i-1]
}
return sl[len(sl)-1]
}
}
return sl[len(sl)-1]
}
func (gui *Gui) nextScreenMode() error {
gui.State.ScreenMode = nextIntInCycle([]WindowMaximisation{SCREEN_NORMAL, SCREEN_HALF, SCREEN_FULL}, gui.State.ScreenMode)
return gui.rerenderViewsWithScreenModeDependentContent()
}
func (gui *Gui) prevScreenMode() error {
gui.State.ScreenMode = prevIntInCycle([]WindowMaximisation{SCREEN_NORMAL, SCREEN_HALF, SCREEN_FULL}, gui.State.ScreenMode)
return gui.rerenderViewsWithScreenModeDependentContent()
}
func (gui *Gui) scrollUpView(view *gocui.View) error {
ox, oy := view.Origin()
newOy := int(math.Max(0, float64(oy-gui.Config.GetUserConfig().Gui.ScrollHeight)))
return view.SetOrigin(ox, newOy)
}
func (gui *Gui) scrollDownView(view *gocui.View) error {
ox, oy := view.Origin()
scrollHeight := gui.linesToScrollDown(view)
if scrollHeight > 0 {
if err := view.SetOrigin(ox, oy+scrollHeight); err != nil {
return err
}
}
if manager, ok := gui.viewBufferManagerMap[view.Name()]; ok {
manager.ReadLines(scrollHeight)
}
return nil
}
func (gui *Gui) linesToScrollDown(view *gocui.View) int {
_, oy := view.Origin()
y := oy
canScrollPastBottom := gui.Config.GetUserConfig().Gui.ScrollPastBottom
if !canScrollPastBottom {
_, sy := view.Size()
y += sy
}
scrollHeight := gui.Config.GetUserConfig().Gui.ScrollHeight
scrollableLines := view.ViewLinesHeight() - y
if scrollableLines < 0 {
return 0
}
// margin is about how many lines must still appear if you scroll
// all the way down. In practice every file ends in a newline so it will really
// just show a single line
margin := 1
if canScrollPastBottom {
margin = 2
}
if scrollableLines-margin < scrollHeight {
scrollHeight = scrollableLines - margin
}
if oy+scrollHeight < 0 {
return 0
} else {
return scrollHeight
}
}
func (gui *Gui) scrollUpMain() error {
if gui.canScrollMergePanel() {
gui.State.Panels.Merging.UserVerticalScrolling = true
}
return gui.scrollUpView(gui.Views.Main)
}
func (gui *Gui) scrollDownMain() error {
if gui.canScrollMergePanel() {
gui.State.Panels.Merging.UserVerticalScrolling = true
}
return gui.scrollDownView(gui.Views.Main)
}
func (gui *Gui) scrollLeftMain() error {
gui.scrollLeft(gui.Views.Main)
return nil
}
func (gui *Gui) scrollRightMain() error {
gui.scrollRight(gui.Views.Main)
return nil
}
func (gui *Gui) scrollLeft(view *gocui.View) {
newOriginX := utils.Max(view.OriginX()-view.InnerWidth()/HORIZONTAL_SCROLL_FACTOR, 0)
_ = view.SetOriginX(newOriginX)
}
func (gui *Gui) scrollRight(view *gocui.View) {
_ = view.SetOriginX(view.OriginX() + view.InnerWidth()/HORIZONTAL_SCROLL_FACTOR)
}
func (gui *Gui) scrollUpSecondary() error {
return gui.scrollUpView(gui.Views.Secondary)
}
func (gui *Gui) scrollDownSecondary() error {
return gui.scrollDownView(gui.Views.Secondary)
}
func (gui *Gui) scrollUpConfirmationPanel() error {
if gui.Views.Confirmation.Editable {
return nil
}
return gui.scrollUpView(gui.Views.Confirmation)
}
func (gui *Gui) scrollDownConfirmationPanel() error {
if gui.Views.Confirmation.Editable {
return nil
}
return gui.scrollDownView(gui.Views.Confirmation)
}
func (gui *Gui) handleRefresh() error {
return gui.refreshSidePanels(refreshOptions{mode: ASYNC})
}
func (gui *Gui) handleMouseDownMain() error {
if gui.popupPanelFocused() {
return nil
}
switch gui.currentSideContext() {
case gui.State.Contexts.Files:
// set filename, set primary/secondary selected, set line number, then switch context
// I'll need to know it was changed though.
// Could I pass something along to the context change?
return gui.enterFile(false, gui.Views.Main.SelectedLineIdx())
case gui.State.Contexts.CommitFiles:
return gui.enterCommitFile(gui.Views.Main.SelectedLineIdx())
}
return nil
}
func (gui *Gui) handleMouseDownSecondary() error {
if gui.popupPanelFocused() {
return nil
}
switch gui.g.CurrentView() {
case gui.Views.Files:
return gui.enterFile(true, gui.Views.Secondary.SelectedLineIdx())
}
return nil
}
func (gui *Gui) fetch(canPromptForCredentials bool, span string) (err error) {
gui.Mutexes.FetchMutex.Lock()
defer gui.Mutexes.FetchMutex.Unlock()
fetchOpts := commands.FetchOptions{}
if canPromptForCredentials {
fetchOpts.PromptUserForCredential = gui.promptUserForCredential
}
err = gui.GitCommand.WithSpan(span).Fetch(fetchOpts)
if canPromptForCredentials && err != nil && strings.Contains(err.Error(), "exit status 128") {
_ = gui.createErrorPanel(gui.Tr.PassUnameWrong)
}
_ = gui.refreshSidePanels(refreshOptions{scope: []RefreshableView{BRANCHES, COMMITS, REMOTES, TAGS}, mode: ASYNC})
return err
}
func (gui *Gui) handleCopySelectedSideContextItemToClipboard() error {<
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