LogView-class: LogView widget

In termr: Modern Reactive Terminal Applications with Data Workflows

LogView widget

Description

See log_view().

Super classes

Widget -> ListBase -> LogView

Public fields

has_cursor

Log views scroll; they have no cursor.

max_lines

Lines kept (older lines are dropped).

timestamps

Prefix lines with the time?

auto_scroll

Follow new lines while scrolled to the end?

Active bindings

lines

The current lines.

paused

Is following paused?

Methods

Public methods

• LogView$new()

• LogView$write()

• LogView$clear()

• LogView$pause()

• LogView$resume()

• LogView$at_end()

• LogView$item_count()

• LogView$item_text()

• LogView$item_style()

• LogView$clone()

Inherited methods

• Widget$add_class()
• Widget$ancestors()
• Widget$animate()
• Widget$arrange_children()
• Widget$bind()
• Widget$bind_reactive()
• Widget$bindings()
• Widget$blur()
• Widget$capture_mouse()
• Widget$child_clip()
• Widget$computed_style()
• Widget$focus()
• Widget$format()
• Widget$get_state()
• Widget$has_class()
• Widget$invalidate()
• Widget$invalidate_paint()
• Widget$is_displayed()
• Widget$is_enabled()
• Widget$layout_descend()
• Widget$layout_differs()
• Widget$matches()
• Widget$mount()
• Widget$on()
• Widget$post_message()
• Widget$print()
• Widget$pseudo_states()
• Widget$query()
• Widget$query_one()
• Widget$refresh()
• Widget$release_mouse()
• Widget$remove()
• Widget$remove_children()
• Widget$remove_class()
• Widget$render()
• Widget$render_lines()
• Widget$replace()
• Widget$run_action()
• Widget$run_process()
• Widget$run_worker()
• Widget$set()
• Widget$set_interval()
• Widget$set_state()
• Widget$set_timeout()
• Widget$toggle_class()
• Widget$walk()
• ListBase$action_list_activate()
• ListBase$action_list_down()
• ListBase$action_list_first()
• ListBase$action_list_last()
• ListBase$action_list_page_down()
• ListBase$action_list_page_up()
• ListBase$action_list_up()
• ListBase$content_height()
• ListBase$content_width()
• ListBase$default_bindings()
• ListBase$default_style()
• ListBase$highlight()
• ListBase$on_activate()
• ListBase$on_click()
• ListBase$on_highlight()
• ListBase$on_mouse_down()
• ListBase$on_mouse_scroll()
• ListBase$paint()
• ListBase$scroll_to_end()
• ListBase$scroll_to_item()

---

LogView$new()

Create a log view. See log_view().

Usage

LogView$new(
  max_lines = 1000L,
  timestamps = FALSE,
  auto_scroll = TRUE,
  id = NULL,
  classes = NULL,
  style = NULL
)

Arguments

max_lines, timestamps, auto_scroll

See fields.

id, classes, style

See Widget.

---

LogView$write()

Add lines.

Usage

LogView$write(..., level = "info")

Arguments

...

Text, pasted together; newlines start new lines.

level

"debug", "info", "success", "warning" or "error".

---

LogView$clear()

Remove all lines.

Usage

LogView$clear()

---

LogView$pause()

Stop following new lines.

Usage

LogView$pause()

---

LogView$resume()

Follow new lines again (and jump to the end).

Usage

LogView$resume()

---

LogView$at_end()

Is the view scrolled to the last line?

Usage

LogView$at_end()

---

LogView$item_count()

Number of lines.

Usage

LogView$item_count()

---

LogView$item_text()

Text of line i.

Usage

LogView$item_text(i)

Arguments

i

Index.

---

LogView$item_style()

Style of line i (by level).

Usage

LogView$item_style(i)

Arguments

i

Index.

---

LogView$clone()

The objects of this class are cloneable with this method.

Usage

LogView$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.

termr documentation built on Oct. 21, 2026, 5:13 p.m.