| Commit message (Collapse) | Author | Age |
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This resolves an issue with Alacritty's scrolling region performance
when there's a number of fixed lines at the top of the screen. This
affects commonly used applications like tmux or vim.
Instead of using separate logic for when the scrolling region starts at
the top of the screen without any fixed lines, the code should now try
to figure out the target position of these fixed lines ahead of time,
swap them into place and still perform the optimized implementation to
move the grid.
This comes with the small trade-off that since lines are swapped before
rotating the screen without clearing or removing any lines during the
rotation process, that the places the fixed lines have been swapped with
will appear out of order when using scrolling regions in the primary
screen buffer. Since the use of scrolling regions primarily affects the
alternate screen and most terminals don't keep any history at all, this
should however not cause any problems.
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This removes the restriction of not being able to select text while the
search is active, making it a bit less jarring of a UX when the user
tries to interact with the terminal during search.
Since the selection was used during vi-less search to highlight the
focused match, there is now an option for a focused match color, which
uses the inverted normal match color by default. This focused match is
used for both search modes.
Other mouse interactions are now also possible during search, like
opening URLs or clicking inside of mouse mode applications.
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The zerowidth characters were conventionally stored in a [char; 5].
This creates problems both by limiting the maximum number of zerowidth
characters and by increasing the cell size beyond what is necessary even
when no zerowidth characters are used.
Instead of storing zerowidth characters as a slice, a new CellExtra
struct is introduced which can store arbitrary optional cell data that
is rarely required. Since this is stored behind an optional pointer
(Option<Box<CellExtra>>), the initialization and dropping in the case
of no extra data are extremely cheap and the size penalty to cells
without this extra data is limited to 8 instead of 20 bytes.
The most noticible difference with this PR should be a reduction in
memory size of up to at least 30% (1.06G -> 733M, 100k scrollback, 72
lines, 280 columns). Since the zerowidth characters are now stored
dynamically, the limit of 5 per cell is also no longer present.
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This implements search without vi mode by using the selection to track
the active search match and advancing it on user input. The keys to go
to the next or previous match are not configurable and are bound to
enter and shift enter based on Firefox's behavior.
Fixes #3937.
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This resolves three different issues with cursor reflow.
The first issue was that the cursor could reach the top of the screen
during reflow, since content was pushed into history despite viewport
space being available. Since the cursor cannot leave the viewport, this
would insert new space between the cursor and content (see #3968).
Another issue was that the wrapline flag was not set correctly with
content being available behind the cursor. Since the cursor is not
necessarily at the end of the line, it is possible that the cursor
should reflow to the next line instead of staying on the current one and
setting the wrapline flag.
The last bug fixed in this is about reflow with content available behind
the cursor. Since that might have en effect on new lines being inserted
and deleted below the cursor, the cursor needs to be reflown based on
it.
Fixes #3968.
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Fixes #3960.
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This adds a new regex search which allows searching the entire
scrollback and jumping between matches using the vi mode.
All visible matches should be highlighted unless their lines are
excessively long. This should help with performance since highlighting
is done during render time.
Fixes #1017.
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To make sure that output is consistent even while resizing the window,
the cursor will now reflow with the content whenever the window size is
changed.
Since the saved cursor is more likely to represent a position in the
grid rather than a reference to the content below it and handling of
resize before jumping back to it is more likely than with the primary
cursor, no reflow is performed for the saved cursor
The primary cursor is unfortunately always reflowed automatically by
shells like zsh, which has always caused problems like duplicating parts
of the prompt and stretching it out "infinitely". Since the cursor is
now reflowed appropriately the duplication of the shell prompt should be
reduced, however it is possible that the shell moves the cursor up one
line after it has already been reflowed, which will cause a line of
history to be deleted if there is no duplicated prompt line above the
reflowed prompt. Since this behavior is identical in VTE and Kitty, no
attempt is made to work around it in this patch.
Fixes #3584.
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While neither VTE, URxvt nor Kitty handle this, preserving the linewrap
flag across alternate screen switches seems like the correct thing to
do. XTerm also does handle this correctly, which indicates that it is a
bug and not a feature.
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This bug was caused by trying to grow the terminal while the cursor line
was wrapped but entirely empty. Resizing the terminal now accounts for
the position of the deleted line and moves the cursor up only when the
line deleted was above it.
The deletion of the line was caused by the shell redrawing itself
whenever the cursor is moved.
Fixes #3583.
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Selection is now cleared if clear line or clear screen escape sequences
are clearing content behind it.
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This works around a bug where the optimized version of the
`Grid::scroll_down` function would just rotate the entire grid down if
the scrolling region starts at the top of the screen, even if there is
history available.
Since rotations of scrolling regions should not affect the scrollback
history, this optimized version is now only called when the max
scrollback size is 0, making it impossible for the grid to have any
history while it is used.
Since the main usecase of this is the alternate screen buffer, which
never has any history, the performance should not be affected negatively
by this change.
Fixes #3582.
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This adds a new `Scheduler` which allows for staging events to be
processed at a later time.
If there is a selection active and the mouse is above or below the
window, the viewport will now scroll torwards the direction of the
mouse. The amount of lines scrolled depends on the distance of the mouse
to the boundaries used for selection scrolling.
To make it possible to scroll while in fullscreen, the selection
scrolling area includes the padding of the window and is at least 5
pixels high in case there is not enough padding present.
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Keeping the license as part of every file bloats up the files
unnecessarily and introduces an additional overhead to the creation of
new modules.
Since cargo already provides excellent dependency management, most of
the code-reuse of Alacritty should occur through Rust's dependency
management instead of copying it source.
If code is copied partially, copying the license from the main license
file should be just as easy as copying from the top of the file and
making some adjustments based on where it is used is likely necessary
anyways.
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This commit aims to clear up the separation between Term and Grid to
make way for implementing search.
The `cursor` and `cursor_save` have been moved to the grid, since
they're always bound to their specific grid and this makes updating
easier.
Since the selection is independent of the active grid, it has been moved
to the `Term`.
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This fixes a regression introduced in 4cc6421, which ignored the main
grid's cursor when increasing the number of lines available, causing
incorrect cursor position after restoring to the primary screen.
Additionally another similar bug has been fixed where the grid was not
scrolled correctly when shrinking while in the alternate screen.
When the grid is resized multiple lines at once, there was also an issue
with Alacritty either pulling all lines from history or none at all,
instead of mixing both approaches and pulling just what is required.
This lead to incorrect cursor positions when the resize could partially
make use of history.
Fixes #3499.
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This resolves a bug where the very first/last cell would still be
selected when both the start and the end were below/above the viewport.
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This implements a basic mode for navigating inside of Alacritty's
history with keyboard bindings. They're bound by default to vi's motion
shortcuts but are fully customizable. Since this relies on key bindings
only single key bindings are currently supported (so no `ge`, or
repetition).
Other than navigating the history and moving the viewport, this mode
should enable making use of all available selection modes to copy
content to the clipboard and launch URLs below the cursor.
This also changes the rendering of the block cursor at the side of
selections, since previously it could be inverted to be completely
invisible. Since that would have caused some troubles with this keyboard
selection mode, the block cursor now is no longer inverted when it is at
the edges of a selection.
Fixes #262.
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This resolves an issue with the selection clamping, where no selection
would be rendered at all when the start was above the viewport while the
end was below it.
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Regression was introduced in 4cc6421daa4ff5976ab43c67110a7a80a36541e5,
however it was working before only due to grid.len() bug.
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Fixes #2983.
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Since the expansion of the selection was done after clamping it to the
grid, the selection would incorrectly move the clamped start over by one
cell when the start was to the right of the original column. By
resetting the side of the start point to `Left` before expanding, this
can be circumvented.
This also resolves a regression which broke backwards bracket selection.
Fixes #3223.
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This resolves the issue with full width glyphs getting rendered in the
last column. Since they need at least two glyphs, it is not possible to
properly render them in the last column.
Instead of rendering half of the glyph in the last column, with the
other half cut off, an additional spacer is now inserted before the wide
glyph. This means that the specific glyph in question is then three
cells wide.
Fixes #2385.
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Fixes #3112.
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This fixes a regression introduced in
e99057b179cbdc0851c36575dd043fcdaa45437a, which used `self.len` to
calculate the remainder of `self.zero` during rotation instead of
`self.inner.len()`, leading to a broken `self.zero` offset and incorrect
rotation.
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Fixes #3088.
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This fixes a bug where a row would always get reset completely if its
background does not equal the default terminal background. This leads to
big performance bottlenecks when running commands like `echo "\e[41m" &&
yes`.
Instead of resetting the entire row whenever the template cell is not
empty, the template cell is now compared to the last cell in the row.
The last cell will always be equal to the previous template cell when
`row.occ < row.inner.len()` and if `occ` is equal to the row's length,
the entire row is always reset anyways.
Fixes #2989.
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Previously Alacritty would delete lines when clearing the screen, leading to a
loss of data in the scrollback buffer. Instead of deleting these lines, they
are now rotated outside of the visible region.
This also fixes some issues with Alacritty only resetting lines partially when
the background color of the template cell changed.
Fixes #2199.
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Fixes #2898.
Fixes #2479.
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This takes the latest glutin master to port Alacritty to the EventLoop
2.0 rework.
This changes a big part of the event loop handling by pushing the event
loop in a separate thread from the renderer and running both in
parallel.
Fixes #2796.
Fixes #2694.
Fixes #2643.
Fixes #2625.
Fixes #2618.
Fixes #2601.
Fixes #2564.
Fixes #2456.
Fixes #2438.
Fixes #2334.
Fixes #2254.
Fixes #2217.
Fixes #1789.
Fixes #1750.
Fixes #1125.
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This makes sure that the URL search is only initiated when all required
modifiers are held down. This should improve performance with long URLs.
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This switches to rfind_url for detecting URLs inside the grid. Instead
of expanding at the cursor position, the complete terminal is searched
from the bottom until the visible region is left with no active URL.
Instead of having the field `cur` publicly accessibly on the
`DisplayIterator`, there are the two methods `DisplayIterator::point`
and `DisplayIterator::cell` for accessing the current element of the
iterator now. This allows accessing the current element right after
creating the iterator.
Fixes #2629.
Fixes #2627.
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Since ref tests were only stored whenever winit requested the window
close, they would not get stored properly when the terminal was closed
through Alacritty using `exit`, Ctrl+D or similar.
This moves the ref test code to the and of the main entry point, which
will always be executed regardless of how the terminal was shutdown.
Fixes #2613.
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This resolves an issue with rows only resetting partially, based on
their `occ` state. However this state is not always accurate, so more
than just the occupied elements need to be cleared.
Fixes #2340.
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Fixes #2567.
Fixes #2414.
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The crate containing the entry point is called alacritty, and the crate
containing everything else is called alacritty_terminal.
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