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package gui
import "os/exec"
type viewUpdateOpts struct {
title string
// awkwardly calling this noWrap because of how hard Go makes it to have
// a boolean option that defaults to true
noWrap bool
highlight bool
task updateTask
}
type coordinates struct {
x int
y int
}
type refreshMainOpts struct {
main *viewUpdateOpts
secondary *viewUpdateOpts
}
// constants for updateTask's kind field
const (
RENDER_STRING = iota
RENDER_STRING_WITHOUT_SCROLL
RUN_FUNCTION
RUN_COMMAND
RUN_PTY
)
type updateTask interface {
GetKind() int
}
type renderStringTask struct {
str string
}
func (t *renderStringTask) GetKind() int {
return RENDER_STRING
}
func (gui *Gui) createRenderStringTask(str string) *renderStringTask {
return &renderStringTask{str: str}
}
type renderStringWithoutScrollTask struct {
str string
}
func (t *renderStringWithoutScrollTask) GetKind() int {
return RENDER_STRING_WITHOUT_SCROLL
}
func (gui *Gui) createRenderStringWithoutScrollTask(str string) *renderStringWithoutScrollTask {
return &renderStringWithoutScrollTask{str: str}
}
type runCommandTask struct {
cmd *exec.Cmd
}
func (t *runCommandTask) GetKind() int {
return RUN_COMMAND
}
func (gui *Gui) createRunCommandTask(cmd *exec.Cmd) *runCommandTask {
return &runCommandTask{cmd: cmd}
}
type runPtyTask struct {
cmd *exec.Cmd
}
func (t *runPtyTask) GetKind() int {
return RUN_PTY
}
func (gui *Gui) createRunPtyTask(cmd *exec.Cmd) *runPtyTask {
return &runPtyTask{cmd: cmd}
}
type runFunctionTask struct {
f func(chan struct{}) error
}
func (t *runFunctionTask) GetKind() int {
return RUN_FUNCTION
}
func (gui *Gui) createRunFunctionTask(f func(chan struct{}) error) *runFunctionTask {
return &runFunctionTask{f: f}
}
func (gui *Gui) runTaskForView(viewName string, task updateTask) error {
switch task.GetKind() {
case RENDER_STRING:
specificTask := task.(*renderStringTask)
return gui.newStringTask(viewName, specificTask.str)
case RENDER_STRING_WITHOUT_SCROLL:
specificTask := task.(*renderStringWithoutScrollTask)
return gui.newStringTaskWithoutScroll(viewName, specificTask.str)
case RUN_FUNCTION:
specificTask := task.(*runFunctionTask)
return gui.newTask(viewName, specificTask.f)
case RUN_COMMAND:
specificTask := task.(*runCommandTask)
return gui.newCmdTask(viewName, specificTask.cmd)
case RUN_PTY:
specificTask := task.(*runPtyTask)
return gui.newPtyTask(viewName, specificTask.cmd)
}
return nil
}
func (gui *Gui) refreshMainView(opts *viewUpdateOpts, viewName string) error {
view, err := gui.g.View(viewName)
if err != nil {
gui.Log.Error(err)
return nil
}
view.Title = opts.title
view.Wrap = !opts.noWrap
view.Highlight = opts.highlight
if err := gui.runTaskForView(viewName, opts.task); err != nil {
gui.Log.Error(err)
return nil
}
return nil
}
func (gui *Gui) refreshMainViews(opts refreshMainOpts) error {
if opts.main != nil {
if err := gui.refreshMainView(opts.main, "main"); err != nil {
return err
}
}
gui.splitMainPanel(opts.secondary != nil)
if opts.secondary != nil {
if err := gui.refreshMainView(opts.secondary, "secondary"); err != nil {
return err
}
}
return nil
}
func (gui *Gui) splitMainPanel(splitMainPanel bool) {
gui.State.SplitMainPanel = splitMainPanel
// no need to set view on bottom when splitMainPanel is false: it will have zero size anyway thanks to our view arrangement code.
if splitMainPanel {
_, _ = gui.g.SetViewOnTop("secondary")
}
}
func (gui *Gui) isMainPanelSplit() bool {
return gui.State.SplitMainPanel
}
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