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* msglist: style search resultsTim Culverhouse2022-11-061-0/+5
| | | | | | | | Add option to style search results in the message list. Set default style for results. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* msgviewer: warn user when pager is not in PATHTim Culverhouse2022-11-061-1/+11
| | | | | | | | | Warn user when configured pager is not in PATH. Attempt fallbacks, and throw error if none of the fallbacks are in PATH. Fixes: https://todo.sr.ht/~rjarry/aerc/94 Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* compose: warn user when editor is not in PATHTim Culverhouse2022-11-062-5/+30
| | | | | | | | | Warn user when configured editor is not in path. Attempt fallbacks, and throw error if none of the fallbacks are in PATH. Fixes: https://todo.sr.ht/~rjarry/aerc/94 Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* status: add warning style and methodsTim Culverhouse2022-11-063-0/+14
| | | | | | | | Add a warning style to default statusline. Add methods to status, aerc, and account to push a warning message. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* threadbuilder: sort siblings by sort criteriaKoni Marti2022-11-061-0/+1
| | | | | | | | | | | | | | Sort the client-side thread siblings according to the sort criteria. Activate this option by setting "sort-thread-siblings" to true in the ui section of aerc.conf. "sort-thread-siblings" is false by default and the siblings will be sorted based on their uid number. Note that this options will only work with client-side threading and when the backend supports sorting. Also, it comes with a slight performance penalty. Signed-off-by: Koni Marti <koni.marti@gmail.com> Acked-by: Tim Culverhouse <tim@timculverhouse.com>
* auto-completion: add option to require a min number of charsRobin Jarry2022-11-062-6/+30
| | | | | | | | | | When doing address completion via commands that take a while to run, having the completion trigger even with a single character can be non-optimal. Add an option to allow requiring a minimum number of characters to actually run the completion command. Signed-off-by: Robin Jarry <robin@jarry.cc> Tested-by: Tim Culverhouse <tim@timculverhouse.com>
* msglist: display reversed thread orderingKoni Marti2022-10-272-56/+65
| | | | | | | | Reverse the ordering of the message threads. Implements: https://todo.sr.ht/~rjarry/aerc/54 Signed-off-by: Koni Marti <koni.marti@gmail.com> Acked-by: Robin Jarry <robin@jarry.cc>
* threads: reverse thread orderingKoni Marti2022-10-271-0/+1
| | | | | | | | | | | Add reverse-thread-order option to the ui config to enable reverse display of the mesage threads. Default order is the the intial message is on the top with all the replies being displayed below. The reverse options will put the initial message at the bottom with the replies on top. Signed-off-by: Koni Marti <koni.marti@gmail.com> Acked-by: Robin Jarry <robin@jarry.cc>
* store: reverse message list order with iteratorsKoni Marti2022-10-272-20/+37
| | | | | | | | | | | | | | | | | Reverse the order of the messages in the message list. The complexity of reversing the order is abstracted away by the iterators. To reverse the message list, add the following to your aerc.conf: [ui] reverse-msglist-order=true Thanks to |cos| for sharing his initial implementation of reversing the order in the message list [0]. [0]: https://git.netizen.se/aerc/commit/?h=topic/asc_sort_imap Signed-off-by: Koni Marti <koni.marti@gmail.com> Acked-by: Robin Jarry <robin@jarry.cc>
* listbox: implement horizontal scrollingKoni Marti2022-10-261-1/+62
| | | | | | | | | | | | | | | Implement horizontal scrolling for selected lines that are longer than dialog width. The following keys can be used: Ctrl-a, Home jump to beginning of line Ctrl-e, End jump to end of line Left move one character back Right move one character forward Ctrl+b move one word back Ctrl+w move one word forward Signed-off-by: Koni Marti <koni.marti@gmail.com> Acked-by: Robin Jarry <robin@jarry.cc>
* split: prevent opening split when no messages are selectedTim Culverhouse2022-10-191-6/+16
| | | | | | | | | The [v]split command panics when it is run with no message selected, or when messages aren't loaded. Check for a valid selected message before creating a split, and report an error if one isn't selected. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* command/help: remove helpClose functionTim Culverhouse2022-10-191-20/+0
| | | | | | | | | | | | | The helpClose function is used to call UpdateScreen on MessageViewer, which has the effect of invalidating and redrawing the message view. This logic is redundant with the addition of tcell-term and the main event loop. Remove the helpClose calls. Remove the UpdateScreen methods from messageviewer: those functions are only used by the helpClose function. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Koni Marti <koni.marti@gmail.com>
* terminal: properly handle cursor displayTim Culverhouse2022-10-191-15/+13
| | | | | | | | | The terminal widget reports if the cursor should be displayed. Properly handle this output to report cursor display back to aerc. Reported-by: staceee Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* msgview: add separate date formattingBence Ferdinandy2022-10-191-6/+20
| | | | | | | | | | The ThisDayTimeFormat and friends are missing from the message view which just uses the message list's default setting. This might not be desirable since the amount of space available is different. Introduce separate settings for formatting dates in the message view. Signed-off-by: Bence Ferdinandy <bence@ferdinandy.com> Acked-by: Robin Jarry <robin@jarry.cc>
* dirtree: fix folder scrollingKoni Marti2022-10-191-3/+2
| | | | | | | | Fix scrolling by correcting the index calculation. Fixes: https://todo.sr.ht/~rjarry/aerc/93 Signed-off-by: Koni Marti <koni.marti@gmail.com> Tested-by: Inwit <inwit@sindominio.net>
* ui: add :split and :vsplit view optionsTim Culverhouse2022-10-181-0/+153
| | | | | | | | | | | Add :split and :vsplit commands, which split the message list view to include a message viewer. Each command takes an int, or a delta value ("+1", "-1"). The int value is the resulting size of the message list, and a new message viewer will be displayed below / to the right of the message list. This viewer *does not* set seen flags. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* msgviewer: simplify filter and pager command handlingTim Culverhouse2022-10-181-92/+30
| | | | | | | | | | | | | | | | | | | Refactor the filtering and paging logic to use several fewer goroutines. Fixes data race condition with the timing of filter -> pager -> terminal, can be found when switching message views fast. Check if filter -> pager process is currently running before calling it to start again. Fixes data race between fetching message body and terminal starting. Both can initiate the copying process, and for long running filters and fast message fetching, it is possible to have fetched a message but still be running the filter when the terminal starts. Move StripAnsi to it's own file in lib/parse, similar to the hyperlinks parser. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* compose: warn before sending without attachmentJason Cox2022-10-172-0/+24
| | | | | | | | | | Prevent the embarrassing forgotten attachment scenario by warning the user before sending a message that may need an attachment but does not have one. Whether a message needs an attachment is determined by testing a configurable regex against the message body. Signed-off-by: Jason Cox <dev@jasoncarloscox.com> Acked-by: Robin Jarry <robin@jarry.cc>
* switch-account: fix out-of-bounds panicKoni Marti2022-10-171-0/+3
| | | | | | | | | | Fix out-of-bounds panic by updating the focused int variable when headers change in the switch-account commands. Fixes: d371c1ac8 ("commands: add switch-account command for composer") Reported-by: Bence Ferdinandy <bence@ferdinandy.com> Signed-off-by: Koni Marti <koni.marti@gmail.com> Acked-by: Robin Jarry <robin@jarry.cc>
* filters: export mime type and filename in envRobin Jarry2022-10-161-1/+6
| | | | | | | | | | | Export AERC_MIME_TYPE and AERC_FILENAME in the filters command environment. This allows dynamic coloring with tools that require a filename and/or a mime type to determine the syntax. Update docs and add example use in the default config file. Signed-off-by: Robin Jarry <robin@jarry.cc> Acked-by: Moritz Poldrack <moritz@poldrack.dev>
* msgpart: factorize mime type and filename constructionRobin Jarry2022-10-161-13/+7
| | | | | | | Reduce code duplication. Signed-off-by: Robin Jarry <robin@jarry.cc> Acked-by: Moritz Poldrack <moritz@poldrack.dev>
* filters: append well known dirs to exec PATHRobin Jarry2022-10-161-0/+6
| | | | | | | | | | | | | | | | | | | To allow referencing built-in filters without hard coding a path during installation, append the following folders to the exec PATH when running the filter commands: ~/.config/aerc/filters ~/.local/share/aerc/filters $PREFIX/share/aerc/filters /usr/share/aerc/filters If a filter script has the same name than a command in the default exec PATH, it will not shadow it. In that edge case, the absolute path to the filter script must be specified. Suggested-by: Teo Luppi <me@luppi.uk> Signed-off-by: Robin Jarry <robin@jarry.cc> Acked-by: Moritz Poldrack <moritz@poldrack.dev>
* compose: don't lock call to composer.grid.MouseEventTim Culverhouse2022-10-121-1/+3
| | | | | | | | | | | | | | | | The MouseEvent method of the composer passes on the mouse event to it's underlying grid while the composer is locked. The underlying grid then passes on the mouse event to child objects of the grid, which are referenced via fields of the composer (c.editor is a field in composer but a child of c.grid, for example). When the grid attempts to pass on the mouse event, it is referencing a pointer which is locked, and a deadlock occurs due to the original lock in composer.MouseEvent. Unlock before calling the grid.MouseEvent, and lock the composer again after it is called. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* mailto: allow attaching of filesMoritz Poldrack2022-10-121-0/+10
| | | | | | | | | | | Some programs like Skanpage allow sharing files via email and attaching them automatically from the mailto: link. This patch introduces parsing of the attach query argument in mailto links and attaches the listed files. A potential file:// URL has it's prefix removed. Signed-off-by: Moritz Poldrack <git@moritz.sh> Acked-by: Robin Jarry <robin@jarry.cc>
* invalidatable: cleanup dead codeTim Culverhouse2022-10-1216-128/+27
| | | | | | | | Remove invalidatable type and all associated calls. All items can directly invalidate the UI. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* compose: avoid deadlock when adding new headerRobin Jarry2022-10-111-1/+5
| | | | | | | | | | | | AddEditor acquires the lock and calls FocusEditor which also attempts to acquire it. Since the lock is not re-entrant, it ends in deadlock. Add an internal focusEditor fonction that does not acquire the lock. Fixes: bf2bf8c242cb ("compose: prevent out of bounds access") Reported-by: Moritz Poldrack <moritz@poldrack.dev> Signed-off-by: Robin Jarry <robin@jarry.cc> Tested-by: Thomas Vigouroux <thomas.vigouroux@protonmail.com>
* compose: fix mouse focus of header editorsRobin Jarry2022-10-111-0/+6
| | | | | | | | | The algorithm is broken, there may be more than one header editor with focused=true. Reset the focused flag before forwarding the mouse event to the composer grid. Signed-off-by: Robin Jarry <robin@jarry.cc> Tested-by: Bence Ferdinandy <bence@ferdinandy.com>
* terminal: use Invalidate and QueueRedrawTim Culverhouse2022-10-071-14/+2
| | | | | | | | | | | | | | | | | | | The terminal widget uses it's own redraw logic to improve performance. With the addition of a main event loop, the redraw logic can happen in the main loop via the standard Invalidate logic. Use the Invalidate method to mark aerc invalid, and immediately trigger a redraw with ui.QueueRedraw. The follow up call to QueueRedraw is needed because the terminal update happens in a separate goroutine. This can result in the main event loop finishing it's process of the current event, redrawing the screen, and the terminal having additional updates to be drawn. This fixes race conditions by drawing and calling screen.Show in a separate goroutine. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* aerc: use single event loopTim Culverhouse2022-10-074-34/+19
| | | | | | | | | Combine tcell events with WorkerMessages to better synchronize state with IO and UI. Remove Tick loop for rendering. Use events to trigger renders. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* compose: avoid double lock in MouseEventTim Culverhouse2022-10-051-2/+5
| | | | | | | | | | | | | The MouseEvent locks the composer, and also calls FocusEditor which attempts to lock the composer. This results in a deadlock. No need to call FocusEditor which takes a name as parameter and needs to iterate over all editors to find the correct one. We already have the headerEditor object, use it directly. Fixes: bf2bf8c242cb ("compose: prevent out of bounds access") Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Signed-off-by: Robin Jarry <robin@jarry.cc>
* viewer: option to not mark message as seenKoni Marti2022-10-041-2/+2
| | | | | | | | | | | | | | | | | Add option to open a message in the message viewer without setting the seen flag. Enables the message viewer to be used as a preview pane without changing the message flags unintentionally. Before, the message viewer would set the seen flag by default. The IMAP backend will now always fetch the message body with the peek option enabled (same as we fetch the headers). An "auto-mark-read" option is added to the ui config which is set to true by default. If set the false, the seen flag is not set by the message viewer. Co-authored-by: "James Cook" <falsifian@falsifian.org> Signed-off-by: Koni Marti <koni.marti@gmail.com> Acked-by: Robin Jarry <robin@jarry.cc>
* bindings: properly check for exKey keystrokesTim Culverhouse2022-10-031-1/+9
| | | | | | | | | | | | | | | | | | | | | When checking for an exKey, aerc inspects the key and the rune of the event vs the exkey binding. Runes should only be inspected if the key is a tcell.KeyRune. Some Ctrl-[:alpha:] keys report a rune in tcell, but aerc does not have these bound to the keystroke definition. Only <C-x> has a rune bound, and is one of the very few <C-> keys that can actually be bound to exKey Only compare the Rune field if the key is of type KeyRune. Otherwise, compare the Key. Also compare any modifiers with the keystroke/key event. These changes allow for any control or alt key combination to be bound to the exkey. Update documentaiton to reflect that the default keybind is ':', and not <semicolon> Fixes: https://todo.sr.ht/~rjarry/aerc/67 Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* logging: substitute %w for %vKoni Marti2022-10-022-2/+2
| | | | | | | | | | | | | | | | Subsitute the format specifier %w for %v in the logging facility. The logging functions use a fmt.Sprintf call behind the scene which does not recognize %w. %w should be used in fmt.Errorf when you want to wrap errors. Hence, the log entries that use %w are improperly formatted like this: ERROR 2022/10/02 09:13:57.724529 worker.go:439: could not get message info %!w(*fmt.wrapError=&{could not get structure: [snip] }) ^ Links: https://go.dev/blog/go1.13-errors Signed-off-by: Koni Marti <koni.marti@gmail.com> Acked-by: Moritz Poldrack <moritz@poldrack.dev>
* terminal: fix race conditions on access to cmdTim Culverhouse2022-10-021-35/+11
| | | | | | | | | | | | | | | | Upgrade tcell-term to v0.2.0 Use Start method from tcell-term. This prevents aerc from needing to wait until the command has started to continue. The tcell-term start method blocks until the command is started, similar to cmd.Start. By doing so, we prevent a race condition between aerc and tcell-term on access to cmd.Process. Remove cleanup of cmd, this is all already handled by tcell-term when Close is called. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* terminal: remove invalidate methodTim Culverhouse2022-09-291-5/+1
| | | | | | | | | | The terminal widget has two invalidation methods, one exported and one private. The private one does nothing special. Remove the private method and only use the exported method. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* dirlist: prevent race condition on accessing uiconfigTim Culverhouse2022-09-291-0/+4
| | | | | | | Prevent a race condition when accessing UI Config maps Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* imap: stop checkmail if there are pending actionskt programs2022-09-291-6/+19
| | | | | | | | | | | | | Pass message containing remaining directories to check. Account widget will recursively call CheckMail with the remaining directories until a Done message is returned. Only needed for IMAP worker as other workers run check-mail-cmd in a separate goroutine. Suggested-By: Tim Culverhouse <tim@timculverhouse.com> Signed-off-by: kt programs <ktprograms@gmail.com> Tested-by: Tim Culverhouse <tim@timculverhouse.com>
* compose: prevent out of bounds accessRobin Jarry2022-09-291-0/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the following panic, seen while switching accounts: runtime error: index out of range [4] with length 4 goroutine 6 [running]: git.sr.ht/~rjarry/aerc/widgets.(*Composer).Focus(0xc005cfbe30?, 0x40?) git.sr.ht/~rjarry/aerc/widgets/compose.go:618 +0x51 git.sr.ht/~rjarry/aerc/widgets.(*Aerc).focus(0xc00034c000, {0x0?, 0x0}) git.sr.ht/~rjarry/aerc/widgets/aerc.go:568 +0xec git.sr.ht/~rjarry/aerc/widgets.(*Aerc).BeginExCommand.func2() git.sr.ht/~rjarry/aerc/widgets/aerc.go:590 +0x4c git.sr.ht/~rjarry/aerc/widgets.(*ExLine).Event(0xc009453860, {0xbb6820?, 0xc009baa320?}) git.sr.ht/~rjarry/aerc/widgets/exline.go:81 +0xbc git.sr.ht/~rjarry/aerc/widgets.(*Aerc).Event(0xc009ab1950?, {0xbb6820?, 0xc009baa320?}) git.sr.ht/~rjarry/aerc/widgets/aerc.go:285 +0x470 git.sr.ht/~rjarry/aerc/lib/ui.(*UI).ProcessEvents(0xc000327540) git.sr.ht/~rjarry/aerc/lib/ui/ui.go:117 +0x202 created by main.main git.sr.ht/~rjarry/aerc/aerc.go:244 +0x94c Protect Composer.editable and Composer.focus with a mutex. Reported-by: Bence Ferdinandy <bence@ferdinandy.com> Signed-off-by: Robin Jarry <robin@jarry.cc> Acked-by: Moritz Poldrack <moritz@poldrack.dev>
* notmuch: move logic for dynamic folders to backendKoni Marti2022-09-291-13/+0
| | | | | | | | | | | | | | | Moves logic for creating dynamic folders from the dirlist widget to the backend. Since dynamic folders are notmuch-specific, the notmuch backend should be responsible for correctly setting up those folders. It does that by sending two DirectoryInfos: the first to create the message store, the second to fetch the directory content. This approach also fixes a deadlock introduced by 716ade8968715 ("worker: lock access to callback maps"). Reported-by: Bence Ferdinandy <bence@ferdinandy.com> Signed-off-by: Koni Marti <koni.marti@gmail.com> Tested-by: Tim Culverhouse <tim@timculverhouse.com>
* exline: don't draw completions for keybindsTim Culverhouse2022-09-292-3/+20
| | | | | | | | | | | | | | | | | | | The exline widget works by matching actual keystrokes to a map of keybinds, and if a match is found sending simulated keystrokes through aerc. This has the effect of aerc thinking we are actually typing in the expanded command, and aerc attempts to draw the completions. This results in even basic navigation having two screen draws: For example, pressing 'j' to select the next message (:next), draws once for the initial key event and state change, and again after the completion debounce timer. Disable tab completion while aerc is simulating keystrokes. If the exline still has focus after simulating keystrokes, restore tab completion. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Koni Marti <koni.marti@gmail.com>
* checkmail: protect access to acct.checkingmailTim Culverhouse2022-09-261-0/+6
| | | | | | | | | A data race exists between the timer goroutine and the main goroutine for checking / setting the status of acct.checkingmail. Protect access to this value with a mutex Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* dirlist: avoid race from accessing ui config in Select debounceTim Culverhouse2022-09-261-1/+2
| | | | | Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* terminal: prevent draw loop when unfocusedTim Culverhouse2022-09-261-0/+3
| | | | | | | | | | If a :term is open and aerc is focused on another tab, it is possible for the :term to redraw itself to the screen. Only allow terminal to redraw itself when it is focused. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* grid: remove unused method ChildrenTim Culverhouse2022-09-202-8/+0
| | | | | | | | | | | The grid method Children returns the children of a grid, and is never used. The function is reimplemented in both aerc.go and account.go, also never called. Remove these unused methods. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* dirlist: don't invalidate on spinner.InvalidateTim Culverhouse2022-09-201-3/+0
| | | | | | | | The dirlist is invalidated explicitly after the spinner is stopped. For simplicitly, don't invalidate on spinner.Invalidate. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* switch: add -n and -p flags for relative switchRobin Jarry2022-09-201-0/+36
| | | | | | | | | Allow switching to next or previous account with switch-account -n and switch-account -p, respectively. By default, these are bound to Alt-n and Alt-p. Signed-off-by: Robin Jarry <robin@jarry.cc> Tested-by: Koni Marti <koni.marti@gmail.com>
* composer: restructure to implement account switchingKoni Marti2022-09-192-30/+106
| | | | | | | | | Extract some functionality of the composer constructor into a account-specific setup function that can be used to implement account switching. Signed-off-by: Koni Marti <koni.marti@gmail.com> Acked-by: Robin Jarry <robin@jarry.cc>
* msgviewer: fix segfault when closing viewerRobin Jarry2022-09-191-1/+0
| | | | | | | | | | | | | | | | | | | There is a race between PartViewer.Cleanup and PartViewer.Draw. pv.term may be not nil in Draw and Cleanup() may set it to nil before pv.term.Draw() is called, causing an invalid memory access: [signal SIGSEGV: segmentation violation code=0x1 addr=0x29 pc=0x9413b8] git.sr.ht/~rjarry/aerc/widgets.(*Terminal).Draw(0x0?, 0x0?) git.sr.ht/~rjarry/aerc/widgets/terminal.go:97 +0x18 git.sr.ht/~rjarry/aerc/widgets.(*PartViewer).Draw(0xc00012a540, 0xc0026ea690) git.sr.ht/~rjarry/aerc/widgets/msgviewer.go:862 +0x2fd There is no need to reset term to nil. Fixes: 77f69501d648 ("msgviewer: properly close embedded terminal") Signed-off-by: Robin Jarry <robin@jarry.cc> Acked-by: Tim Culverhouse <tim@timculverhouse.com>
* terminal: don't invalidate on EventWidgetContentTim Culverhouse2022-09-191-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The terminal widget uses it's own internal event handler to redraw itself for improved performance. The event handler draws, updates the screen, and invalidates. The last invalidate is redundant: Invalidating has the result of telling aerc to redraw the screen. A race condition can occur where an event is emitted from the terminal and the terminal is closed before the event is handled. This results in handling the event after the terminal is closed, and a panic: panic: Attempted to invalidate unknown cell goroutine 54685 [running]: git.sr.ht/~rjarry/aerc/lib/ui.(*Grid).cellInvalidated(0xc00b0a34a0, {0xbb8f10?, 0xc00360cd80}) git.sr.ht/~rjarry/aerc/lib/ui/grid.go:287 +0x175 git.sr.ht/~rjarry/aerc/lib/ui.(*Invalidatable).DoInvalidate(0xc0002e7900?, {0xbb8f10?, 0xc00360cd80?}) git.sr.ht/~rjarry/aerc/lib/ui/invalidatable.go:22 +0x82 git.sr.ht/~rjarry/aerc/widgets.(*Terminal).invalidate(...) git.sr.ht/~rjarry/aerc/widgets/terminal.go:93 git.sr.ht/~rjarry/aerc/widgets.(*Terminal).HandleEvent(0xc00360cd80, {0xbb4ba0?, 0xc006022690?}) git.sr.ht/~rjarry/aerc/widgets/terminal.go:192 +0xd2 github.com/gdamore/tcell/v2/views.(*WidgetWatchers).PostEvent(...) github.com/gdamore/tcell/v2@v2.5.3/views/widget.go:113 github.com/gdamore/tcell/v2/views.(*WidgetWatchers).PostEventWidgetContent(0xc0001b9360, {0xbbc950?, 0xc0001b9320}) github.com/gdamore/tcell/v2@v2.5.3/views/widget.go:123 +0x12b git.sr.ht/~rockorager/tcell-term.(*Terminal).run.func1() git.sr.ht/~rockorager/tcell-term@v0.1.0/terminal.go:117 +0x9d created by git.sr.ht/~rockorager/tcell-term.(*Terminal).run git.sr.ht/~rockorager/tcell-term@v0.1.0/terminal.go:104 +0x110 Don't invalidate on EventWidgetContent. The terminal already handles drawing and updating the tcell Screen internally. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* terminal: protect calls to terminal methods throughout aercTim Culverhouse2022-09-192-1/+6
| | | | | | | | | | | | | | A race condition can occur when a PartViewer is closing and also working on a draw. The closing process sets the terminal to nil, which will create a panic. This can be tested in development by setting the timer in the main aerc tick loop to something very low (1 ms for example). One other unprotected call to terminal exists in the composer widget. Check that the terminal is not nil before calling methods on it. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
generated by cgit (git 2.34.1) at 2024-09-20 01:41:30 +0000