| Commit message (Collapse) | Author | Lines |
|---|
|
|
|
weltschmerz sets window geometry hints to indicate how the terminal
window is to be sized and resized. New sizes are always kept at a
multiple of the character width and height. Effectively, this ensures
that terminal windows never have "negative space" that is not used for
any terminal output.
In order to account for padding and non-terminal widgets, one may
specify base_height and base_width. These values indicate how much space
to add in a final step, after the character width and heights have been
multiplied with the amount of columns and rows respectively. For
example, allowed window widths are always:
(char_width * N) + base_width
Currently, we always use a base_width of 2 * 2. This is to account for
the padding of 2 pixels as specified in terminal.css.
weltschmerz uses GtkScrolledWindow and overlay scrolling by default.
With overlay_scrolling enabled, the scrollbar does not take up any extra
space. The previous commit works around a problem with GtkScrolledWindow
and sets PolicyType.ALWAYS when overlay scrolling is turned off. This
means that we now also have to account for the size of that scrollbar.
Since we cannot simply query the size of the scrollbar, we have to be a
bit more creative. Use the full window width and subtract the width of
the terminal at startup (we know it is always 80 columns) to get the
amount of space taken up by "anything else". This includes VTE padding
and the scrollbar size.
Importantly, this needs only be done once and is completely agnostic to
any further changes to the terminal or font size (which affects the cell
width and height). We only assume that both the size of the scrollbar
and the amount of padding is constant, which we feel to be a reasonable
trade-off.
|
|
weltschmerz uses GtkScrolledWindow to provide a vertical scrollbar to
the user. By default, this widget enables overlay scrolling. This means
that the scrollbar is painted "inside" the terminal, as if overlaid.
There's no configuration switch to turn this behaviour off, since we are
convinced that overlay scrolling is the right thing to do for terminals.
However, GTK allows users to turn off overlay scrolling in a global
setting [1] or by using the 'GTK_OVERLAY_SCROLLING' environment
variable. Some distributions turn overlay scrolling off by default.
When overlay scrolling is disabled, GtkScrolledWindow falls back to
rendering the scrollbar normally. Since our scrollbar policy is set to
AUTOMATIC, it is only drawn on demand. This means that it is initially
not be visible but can suddenly take up effective window space once it
appears.
When this happens, depending on what is going on in the terminal, one
can be left with a terminal that is scrolling down infinitely as the
reported column width flaps between two values: one accounting for the
size of the scrollbar and the other one ignoring it. Each time the
column width flaps, VTE sends SIGWINCH, possibly getting caught in an
infinite loop of internal resizes.
Since upstream declares GtkScrolledWindow incompatible with VTE [2] [3],
we have not attempted further investigation on this issue, but may
report an issue in the future.
We definitely want to keep using GtkScrolledWindow even with this
incompatibility - it is the most elegant and visually pleasing solution.
The alternative would be to use a GtkBox and supply our own scrollbar.
This scrollbar would either always be visible (even if there is nothing
to scroll) or entirely hidden. An implementation of this may be found in
the box-scroll branch. Note, however, that we do not guarantee that
branch to be up to date with the latest developments.
To work around this problem, detect when overlay scrolling is turned off
and fall back to PolicyType.ALWAYS. This ensures that the scrollbar is
always visible, mitigating the infinite resize loop. Crucially, compared
to the alternative solution, this will still enable users to enjoy
overlay scrolling if they (or their distribution) do not turn it off.
[1] https://developer.gnome.org/gtk3/stable/GtkSettings.html#GtkSettings--gtk-overlay-scrolling
[2] https://gitlab.gnome.org/GNOME/vte/-/issues/11#note_264921
[3] https://bugzilla.gnome.org/show_bug.cgi?id=733210#c2
|
|
Even though PolicyType.AUTOMATIC should always keep it hidden, be
explicit about our wish to show it under no circumstances.
|
|
Commit c49fbfb (Set minimum width and height in window geometry,
2021-06-17) introduced a trailing comma to make subsequent changes to
the initializer less of a hassle.
However, Vala only accepts trailing commas starting with 0.52.3 [1]. It
would be petty to require this version, especially since older versions
of Vala can still compile weltschmerz without problems.
[1] https://gitlab.gnome.org/GNOME/vala/-/commit/20fcf9ce42dca52c707b96ddf7457931d6ee96f5
|
|
weltschmerz currently does not indicate any minimum size for its window
geometry. If the minimum size is not set, GtkWindow uses its requisition
as the minimum size [1]. Make sure, instead, that we control this value
and set it to one cell.
[1] https://valadoc.org/gdk-3.0/Gdk.Geometry.html
|
|
Currently weltschmerz always uses the global GTK setting for cursor
blink, which means that the cursor blink setting is stored separately
from the rest of the configuration. Add a setting for overriding it in
the config file, so that all the relevant settings can be adjusted in
one standardized place.
Reviewed-by: Wolfgang Müller <wolf@oriole.systems>
|
|
See [1] for background. This was motivated by a warning from valac-0.50.
[1] https://gitlab.gnome.org/GNOME/vala/-/issues/1121
|
|
There was no VTE-related functionality in this method, so we can find a
better place for it now that a dedicated utility class exists.
|
|
VTE can leverage the child program's support of OSC 7 to keep track of
the current directory. This commit adds support for opening said
directory in the default file manager, either by using a shortcut or by
activating a new entry in the context menu.
|
|
This commit adds a "Copy to HTML" entry to the context menu. It is
active when VTE registers an active selection. Lines copied like this
will be put into the clipboard as formatted HTML, retaining nearly all
styling information.
For this, vte_copy now takes a boolean argument - whether or not to
format the lines copied as HTML. As two menu items now access vte_copy
directly, and there is no clean way of passing arguments to signal
handlers through terminal.ui, signals for both menu items are now
connected in the Vala code instead.
|
|
This commit adds support for the OSC 8 hyperlink escape sequence [1]. As
this is not a mature feature and there seem to be outstanding security
concerns [2], the setting that controls whether or not OSC 8 is
interpreted is disabled by default.
Just like gnome-terminal, weltschmerz will display a tooltip with the
canonicalized URI when hovering over a hyperlink.
[1] https://gist.github.com/egmontkob/eb114294efbcd5adb1944c9f3cb5feda
[2] https://gist.github.com/egmontkob/eb114294efbcd5adb1944c9f3cb5feda#security
|
|
This commit improves and simplifies weltschmerz's configuration
handling. Obtaining and parsing the KeyFile is split out into
ConfigReader, which is fully agnostic of the specific configuration
values.
Config now contains all configuration values in the form of primitive
types or class instances, and no longer delegates access to the KeyFile
structure directly. This means that the configuration file is read once,
and then kept in the Config instance.
Indirectly this commit also fixes a bug where weltschmerz would segfault
if one of the palette entries contained an invalid value.
|
|
|
|
|
