This `terminal-transcript-rows` key can be used to adjust the terminal transcript rows. The user can set an integer value between `100` and `50000`. The default value is still `2000`. So adding an entry like `terminal-transcript-rows=10000` to `termux.properties` file will allow users to scroll back ~10000 lines of command output. After updating the value, termux must be restarted. You can also run `termux-reload-settings` command so that termux loads the updated value, but only new sessions will use the updated value, existing sessions will not be affected.
You can test this with the following, where `70` is number of `x` characters per line and `10001` is the number of lines to print.
`x="$(printf 'x%.0s' {1..70})"; for i in {1..10001}; do echo "$i:$x"; done`
Be advised that using large values may have a performance impact depending on your device capabilities, so use at your own risk.
Closes#2071
This commit majorly refactors `TermuxActivity` and moves its view components and functions into dedicated classes.
- The view layouts and ids have been given meaningful names, like `termux_activity.xml`.
- The `TerminalToolbarViewPager` class has been created to handle the now called toolbar that shows on the bottom of the terminal view. It currently contains extra keys view defined by `terminal_toolbar_extra_keys_view.xml` file and a text input view defined by `terminal_toolbar_text_input_view.xml` file when user can switch to by swiping left. The input text will now be preserved if android destroys the activity or its recreated.
- The `TermuxSessionsListViewController` class has been created to handle view related functionality of the termux sessions list shown in the left drawer, namely view creation, `onItemClick()`, `onItemLongClick()`, etc. Its list view is defined by `termux_activity.xml` file and each item's layout is defined by the `terminal_sessions_list_item.xml` file.
- The `TextDataUtils` class has been added to the `com.termux.app.utils` package for text utils.
- The design for the `SessionChangedCallback` interface for `TerminalSession` has been majorly changed. Firstly, it has been renamed and moved from `TerminalSession` to the dedicated `TerminalSessionClient` class file. The interface now also supports the termux app centralized logging framework so that `TerminalSession` and `TerminalEmulator` can use them. Previously, `TermuxService` was implementing a wrapper interface, which would then call the real interface defined by the `TermuxActivity` if it was currently bound to the service. This cluttered and partially duplicated the code. Now, the implementation is defined by the `TermuxSessionClientBase` and `TermuxSessionClient` classes. The `TermuxSessionClientBase` implements the `TerminalSessionClient` interface but the definition of the activity related functions do not do anything, only the background ones like the logging functions are fully implemented. The `TermuxSessionClient` class inherits from the `TermuxSessionClientBase` class and provides the implementation for the activity related functions. The design for how this works is that if the `TermuxService` is not bound to `TermuxActivity`, it just passes the `TermuxSessionClientBase` implementation to `TerminalSession`. If the activity is bound at some point, then in `onServiceConnected()` it replaces/updates the client objects stored in `TerminalSession` and `TerminalEmulator` with `TermuxSessionClient`, and then replaces them back with `TermuxSessionClientBase` in `onDestroy()`. This seems to be working for now without an issue.
