dundee/gdu

package tui

import (
    "github.com/dundee/gdu/v5/pkg/fs"
    "github.com/gdamore/tcell/v2"
    "github.com/rivo/tview"
)

func (ui *UI) onMouse(event *tcell.EventMouse, action tview.MouseAction) (*tcell.EventMouse, tview.MouseAction) {
    if event == nil {
        return nil, action
    }

    if ui.pages.HasPage("confirm") ||
        ui.pages.HasPage("progress") ||
        ui.pages.HasPage("deleting") ||
        ui.pages.HasPage("emptying") ||
        ui.pages.HasPage("help") {
        return nil, action
    }

    // nolint: exhaustive // Why: we don't need to handle all mouse events
    switch action {
    case tview.MouseLeftDoubleClick:
        row, column := ui.table.GetSelection()
        if ui.currentDirPath != ui.topDirPath && row == 0 {
            ui.handleLeft()
        } else {
            selectedFile := ui.table.GetCell(row, column).GetReference().(fs.Item)
            if selectedFile.IsDir() {
                ui.handleRight()
            } else {
                ui.showFile()
            }
        }
        return nil, action
    case tview.MouseScrollUp, tview.MouseScrollDown:
        row, column := ui.table.GetSelection()
        if action == tview.MouseScrollUp && row > 0 {
            row--
        } else if action == tview.MouseScrollDown && row+1 < ui.table.GetRowCount() {
            row++
        }
        ui.table.Select(row, column)
        return nil, action
    }

    return event, action
}