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* config: make various sections accessible via global varsRobin Jarry2022-12-141-2/+2
| | | | | | | | | | | | | | | | | | | | There is only one instance of AercConfig which is associated to the Aerc widget. Everywhere we need to access configuration options, we need somehow to get a reference either to the Aerc widget or to a pointer to the AercConfig instance. This makes the code cluttered. Remove the AercConfig structure and every place where it is referenced. Instead, declare global variables for every configuration section and access them directly from the `config` module. Since bindings and ui sections can be "contextual" (i.e. per account, per folder or per subject), leave most local references intact. Replacing them with config.{Ui,Binds}.For{Account,Folder,Subject} would make this patch even more unreadable. This is something that may be addressed in the future. Signed-off-by: Robin Jarry <robin@jarry.cc> Acked-by: Tim Culverhouse <tim@timculverhouse.com>
* logging: rename package to logRobin Jarry2022-12-021-2/+2
| | | | | | | | | | Use the same name than the builtin "log" package. That way, we do not risk logging in the wrong place. Suggested-by: Tim Culverhouse <tim@timculverhouse.com> Signed-off-by: Robin Jarry <robin@jarry.cc> Tested-by: Bence Ferdinandy <bence@ferdinandy.com> Acked-by: Tim Culverhouse <tim@timculverhouse.com>
* ui: box and frame an interactive widgetKoni Marti2022-11-211-0/+74
| | | | | | | | Draw a framed box with a title containing an interactive-drawable widget. Signed-off-by: Koni Marti <koni.marti@gmail.com> Acked-by: Tim Culverhouse <tim@timculverhouse.com>
* ui: invalidate ui when queuing redrawTim Culverhouse2022-11-062-3/+3
| | | | | | | | | | | | | | | The QueueRedraw function should always be preceeded by a call to ui.Invalidate in order to make a redraw a occur. In one instance, this was not done and it was possible for the UI to not redraw itself (when a terminal closes, a UI redraw request is made but it is possible for the UI to not be invalidated as a result of the close). Move the call to Invalidate into the QueueRedraw function to ensure that every QueueRedraw call will redraw the screen. Fixes: https://todo.sr.ht/~rjarry/aerc/98 Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* auto-completion: add option to require a min number of charsRobin Jarry2022-11-061-2/+8
| | | | | | | | | | 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>
* ui: add :split and :vsplit view optionsTim Culverhouse2022-10-181-0/+18
| | | | | | | | | | | 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>
* aercmsg: add AercFuncMsg and QueueFuncTim Culverhouse2022-10-181-0/+10
| | | | | | | | | | Introduce AercFuncMsg and QueueFunc. These are used in combination to queue a function to be run in the main goroutine. This can be used to prevent data races in delayed function calls (ie from debounce functions). Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* invalidatable: cleanup dead codeTim Culverhouse2022-10-1211-159/+19
| | | | | | | | 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>
* invalidatable: always mark ui as dirty OnInvalidateTim Culverhouse2022-10-072-15/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | The Invalidatable struct is designed so that a widget can have a callback function ran when it is Invalidated. This is used to cascade up the widget tree, marking things as Invalid along the way so that only Invalid widgets are drawn. However, this is only implemented at the grid cell level for checks if the cell is invalidated -- and the grid cells are never set back to a "valid" state. The effect of this is that no matter what is invalidated, the entire UI gets drawn again. The calling through the Invalidate callbacks creates *several* race conditions, as Invalidate is called from several different goroutines, and many widgets call invalidate on their parent or children. Tcell has optimizations to only rerender screen cells that have changed their rune and style. The only performance penalty by redrawing the entire screen for aerc is the operations *within the aerc draw methods*. Most of these are not expensive and have relatively no impact on performance. Skip all of the OnInvalidates, and directly invalidate the UI when DoInvalidate is called by a widget. This reduces data races, and simplifies the widget redraw logic signficantly. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* render: clean up render codeTim Culverhouse2022-10-071-11/+1
| | | | | | | | | | | | The render method sets everything as invalid if there was a popover. This is no longer necessary, as everything is redrawn anyways. Remove the check and extra atomic set of dirty and invalidate. Remove unused return value Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* aerc: use single event loopTim Culverhouse2022-10-072-16/+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>
* events: introduce AercMsg and QueueRedrawTim Culverhouse2022-10-072-0/+11
| | | | | | | | | | Add AercMsg as a main interface for internal communication in aerc in preparation for a main event loop. Add a QueueRedraw function to to trigger a redraw. This will be needed for widgets which should be drawn after some delay (completions, terminal, for example) Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* ui: avoid panic when terminal window is shrunkJason Stewart2022-09-261-2/+4
| | | | | | | | | | | When using a tiling window manager, aerc terminal dimensions may be greatly reduced after a new window has been created by :open. When the ui attempts to render to formerly-valid coordinates, SetCell & Printf may panic. Replace panic() with no-op in both functions to prevent aerc from crashing after a window shrink. Signed-off-by: Jason Stewart <support@eggplantsd.com> Acked-by: Robin Jarry <robin@jarry.cc>
* textinput: prevent data race from debounce functionTim Culverhouse2022-09-261-0/+6
| | | | | | | | Protect access to fields in textinput. Concurrent access can happen in the main event loop and the completion debounce function. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* grid: protect calls to cell.ContentTim Culverhouse2022-09-201-2/+6
| | | | | | | | | Many panics occur from calling Draw on a nil widget, stemming from the grid ui element. Protect the calls to Draw from within grid to prevent this method of panic. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* grid: remove unused method ChildrenTim Culverhouse2022-09-201-11/+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>
* term: add bracketed paste supportTim Culverhouse2022-09-141-0/+1
| | | | | | | | Allow forwarding paste events to embedded applications. When a bracketed paste is in progress, do not process any command bindings. Signed-off-by: Robin Jarry <robin@jarry.cc> Signed-off-by: Tim Culverhouse <tim@timculverhouse.com>
* ui: export context.viewport, screen.show, add SetCursorStyleTim Culverhouse2022-09-141-0/+12
| | | | | | | | | | Export context.viewport for use in implementing tcell-term. Bump tcell version to enable SetCursorStyle feature. Add this function to the ui for future use with tcell-term. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* ui: cleanup internals and apiRobin Jarry2022-09-141-15/+7
| | | | | | | | | | | | | | | | Now that tcell events are handled in a goroutine, no need for a channel to buffer them. Rename ui.Tick() to ui.Render() and ui.Run() to ui.ProcessEvents() to better reflect what these functions do. Move screen.PollEvent() into ui.ProcessEvents(). Register the panic handler in ui.ProcessEvents(). Remove aerc.ui.Tick() from DecryptKeys(). What the hell was that? Signed-off-by: Robin Jarry <robin@jarry.cc> Tested-by: Tim Culverhouse <tim@timculverhouse.com>
* ui: process tcell events in a separate go routine from renderingTim Culverhouse2022-09-131-17/+16
| | | | | | | | | | | | | The UI runs off a 16 ms ticker. If no render is required, and no event is seen, aerc waits 16 ms before checking for new events or render requests. This severely limits handling of events from tcell, and is particularly noticeable on pasting of large quantities of text. Process tcell events in a separate go routine from the render loop. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Moritz Poldrack <moritz@poldrack.dev> Acked-by: Robin Jarry <robin@jarry.cc>
* lint: homogenize operations and minor fixes (gocritic)Moritz Poldrack2022-08-047-32/+24
| | | | | | | | | | | | | | | | | | Apply GoDoc comment policy (comments for humans should have a space after the //; machine-readable comments shouldn't) Use strings.ReplaceAll instead of strings.Replace when appropriate Remove if/else chains by replacing them with switches Use short assignment/increment notation Replace single case switches with if statements Combine else and if when appropriate Signed-off-by: Moritz Poldrack <moritz@poldrack.dev> Acked-by: Robin Jarry <robin@jarry.cc>
* lint: removed unused code (deadcode, structcheck, unused)Moritz Poldrack2022-08-042-7/+5
| | | | | Signed-off-by: Moritz Poldrack <moritz@poldrack.dev> Acked-by: Robin Jarry <robin@jarry.cc>
* lint: apply new formatting rulesMoritz Poldrack2022-08-015-6/+10
| | | | | | | Run `make fmt`. Signed-off-by: Moritz Poldrack <git@moritz.sh> Acked-by: Robin Jarry <robin@jarry.cc>
* autocompletion: fix regressionKoni Marti2022-08-011-2/+2
| | | | | | | | | | | | | | | | | | | | | Commit 27425c15c4b9 ("autocompletion: fix slice out of bounds access") introduced a regression in the autocompletion that messes up the order of last entered chars when autocompletion runs. The ranges for a slice a[low:high] are 0 <= low <= high <= len(a) [0] To reproduce with the ":cf" command: 1) enter ":c" 2) wait for autocompleteion 3) enter "f" 4) the prompt will now be ":fc" [0]: https://go.dev/ref/spec#Slice_expressions Fixes: 27425c15c4b9 ("autocompletion: fix slice out of bounds access") Signed-off-by: Koni Marti <koni.marti@gmail.com> Acked-by: Robin Jarry <robin@jarry.cc>
* autocompletion: fix slice out of bounds accessMoritz Poldrack2022-07-311-0/+3
| | | | | Signed-off-by: Moritz Poldrack <git@moritz.sh> Acked-by: Robin Jarry <robin@jarry.cc>
* tabs: make it more thread safeRobin Jarry2022-07-231-13/+68
| | | | | | | Protect the access to the tabs array and current index with a mutex. Signed-off-by: Robin Jarry <robin@jarry.cc> Acked-by: Koni Marti <koni.marti@gmail.com>
* tabs: make fields privateRobin Jarry2022-07-231-77/+103
| | | | | | | | | | | | | | The Tabs object exposes an array of Tab objects and the current selected index in that array. The these two fields are sometimes modified in goroutines, which can lead to data races causing fatal out of bounds accesses on the tab array. Hide these fields as private API. Expose only what needs to be seen from the outside. This will prepare for protecting concurrent access with a lock in the next commit. Signed-off-by: Robin Jarry <robin@jarry.cc> Acked-by: Koni Marti <koni.marti@gmail.com>
* Revert "fix panic on closing a tab"Moritz Poldrack2022-07-181-6/+2
| | | | | | | | | | | | | | | | | This reverts commit d7feb56cbe7b81160b580ec2f5dcaef78c7a2230. This commit introduced a regression in which upon closing any but the last tab caused an out of range panic would occur. Steps to reproduce - open a tab - open another tab - close the first tab Fixes: https://todo.sr.ht/~rjarry/aerc/58 Reported-by: akspecs <akspecs@gmail.com> Signed-off-by: Moritz Poldrack <git@moritz.sh> Acked-by: Robin Jarry <robin@jarry.cc>
* fix panic on closing a tabMoritz Poldrack2022-07-101-2/+6
| | | | | | | | | | | This change fixes a panic caused by the selected tab being out of sync when selecting a new one in widgets.(*Aerc).SelectedTab(). This happens if the tab is already removed from the list of tabs, but the selection not yet being updated. This was achieved by moving the tabs behind updating the selection. Signed-off-by: Moritz Poldrack <git@moritz.sh> Acked-by: Tim Culverhouse <tim@timculverhouse.com>
* uiconfig: use pointer references to uiConfigTim Culverhouse2022-07-032-5/+5
| | | | | | | | This patch changes references to uiConfig in function signatures and structs to be pointers. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Acked-by: Robin Jarry <robin@jarry.cc>
* pgp: check encryption keys before sending messageTim Culverhouse2022-05-061-0/+14
| | | | | | | | | | | | | | | | Add check for public keys of all message recipients (to, cc, and bcc) before sending the message. Adds an OnFocusLost callback to header editors to facilitate a callback for checking keys whenever a new recipient is added (OnChange results in too many keyring checks). Once encryption is initially set, the callbacks are registered. If a public key is not available for any recipient, encryption is turned off. However, notably, the callbacks are still registered meaning as s soon as the user removes the recipients with missing keys, encryption is turned back on. Signed-off-by: Tim Culverhouse <tim@timculverhouse.com> Tested-by: Koni Marti <koni.marti@gmail.com>
* grid: don't draw at a negative offsetConnor Kuehl2022-04-281-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | aerc panics when using macOS's default terminal emulator, Terminal.app, when closing all but aerc's tab: This error was also written to: /tmp/aerc-crash-20220427-194134.log panic: Attempted to create context with negative offset [recovered] panic: Attempted to create context with negative offset goroutine 1 [running]: git.sr.ht/~rjarry/aerc/logging.PanicHandler() /Users/ckuehl/src/aerc/logging/panic-logger.go:47 +0x58c panic({0x100d077a0, 0x14000032700}) /opt/homebrew/Cellar/go/1.18.1/libexec/src/runtime/panic.go:844 +0x258 git.sr.ht/~rjarry/aerc/lib/ui.(*Context).Subcontext(0x1400013e420?, 0x14000202360?, 0x140000ffc48?, 0x1009a10e4?, 0x100da9440?) /Users/ckuehl/src/aerc/lib/ui/context.go:47 +0x160 git.sr.ht/~rjarry/aerc/lib/ui.(*Grid).Draw(0x1400013e420, 0x14000202360) /Users/ckuehl/src/aerc/lib/ui/grid.go:143 +0x2bc git.sr.ht/~rjarry/aerc/widgets.(*Aerc).Draw(0x1400013e4d0, 0x14000202360) /Users/ckuehl/src/aerc/widgets/aerc.go:178 +0x30 git.sr.ht/~rjarry/aerc/lib/ui.(*UI).Tick(0x1400022bcc0) /Users/ckuehl/src/aerc/lib/ui/ui.go:116 +0x248 main.main() /Users/ckuehl/src/aerc/aerc.go:226 +0x9e8 I'm not entirely sure what the interactions are between the terminal emulator, aerc's grid, and the space that moves around when the tab bar disappears because there are no more tabs, but this fixes the issue 100% of the time and I haven't noticed any issues. Signed-off-by: Connor Kuehl <cipkuehl@gmail.com> Acked-by: Robin Jarry <robin@jarry.cc>
* aerc: use contextual ui styleset for tabs/composeKoni Marti2022-04-171-4/+10
| | | | | | | | | Use contextual ui styleset for tabs and compose widgets. If no account is selected, use default styleset as fallback. Fixes: https://todo.sr.ht/~rjarry/aerc/3 Signed-off-by: Koni Marti <koni.marti@gmail.com> Acked-by: Robin Jarry <robin@jarry.cc>
* completion: install panic handler in completion callbackRobin Jarry2022-03-251-0/+2
| | | | | | | | | This callback is actually invoked in a goroutine by time.AfterFunc. The panic handler must be explicitly installed. Link: https://github.com/golang/go/blob/go1.18/src/time/sleep.go#L160-L173 Signed-off-by: Robin Jarry <robin@jarry.cc> Acked-by: Moritz Poldrack <moritz@poldrack.dev>
* logging: added a log on panicMoritz Poldrack2022-03-231-0/+3
| | | | | | | | | | | | | Since panics still regularly "destroy" the terminal, it is hard to get a stack trace for panics you do not anticipate. This commit adds a panic handler that automatically creates a logfile inside the current working directory. It has to be added to every goroutine that is started and will repair the terminal on a panic. Signed-off-by: Moritz Poldrack <git@moritz.sh> Acked-by: Robin Jarry <robin@jarry.cc>
* lib/ui/textinput: stop at /, ", and ' charsPranjal Kole2022-02-031-5/+11
| | | | This matches the default behaviour of Ctrl+W in vim.
* completions: add support for completing multiple addressesParasrah2022-01-071-5/+6
| | | | | | | as per the discussion https://lists.sr.ht/~sircmpwn/aerc/patches/15367 this handles completions in `completer/completer.go` by enabling the completer to return a `prefix` that will be prepended to the selected completion candidate.
* style: customize vertical and horizontal border charactersDian M Fay2021-11-301-4/+7
| | | | | | | | | New border-char-horizontal and border-char-vertical config settings in aerc.conf allow users to modify border appearance from the default 1-wide/tall blank space. In stylesets, border.fg now affects the foreground color when custom characters are defined. Signed-off-by: Robin Jarry <robin@jarry.cc>
* go.mod: change base git urlRobin Jarry2021-11-054-4/+4
| | | | | | | I'm not sure what are the implications but it seems required. Link: https://github.com/golang/go/issues/20883 Signed-off-by: Robin Jarry <robin@jarry.cc>
* view,compose: use border color to separate headers from bodyRobin Jarry2021-10-281-4/+7
| | | | | | | | | | When composing a message, there is an empty fill line between the headers and the text editor. The line is printed with the default style which may cause users to assume it is part of the editor. Display the fill lines with the border color to avoid confusion. Signed-off-by: Robin Jarry <robin@jarry.cc>
* lib/ui/textinput: Optimize ensureScrollAdnan Maolood2021-08-301-5/+5
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* update tcell to v2 and enable TrueColor supporty0ast2020-12-1811-12/+12
| | | | | | | | | Also update to the tcell v2 PaletteColor api, which should keep the chosen theme of the user intact. Note, that if $TRUECOLOR is defined and a truecolor given, aerc will now stop clipping the value to one of the theme colors. Generally this is desired behaviour though.
* Remove unused Simulator interfaceReto Brunner2020-09-101-5/+0
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* Implement style configuration.Kalyan Sriram2020-08-065-60/+48
| | | | | | Introduce the ability to configure stylesets, allowing customization of aerc's look (color scheme, font weight, etc). Default styleset is installed to /path/to/aerc/stylesets/default.
* Revert "Implement style configuration."Reto Brunner2020-07-305-48/+60
| | | | This reverts commit 1ff687ca2b0821c2cacc1fa725abb3302d2af9da.
* Implement style configuration.Kalyan Sriram2020-07-305-60/+48
| | | | | | Introduce the ability to configure stylesets, allowing customization of aerc's look (color scheme, font weight, etc). Default styleset is installed to /path/to/aerc/stylesets/default.
* Make grid sizes dynamicJeffas2020-06-091-10/+16
| | | | | | | | | The grid used static sizes which meant that changing settings didn't have an effect on elements of the ui, notably the sidebar width. This patch makes the `Size` parameter of a cell a function which returns the `int`, allowing for dynamic sizes. A `Const` function is also included for ease of use for static sizes.
* Revert "Add Style configuration"Drew DeVault2020-05-285-48/+60
| | | | This reverts commit 0f78f06610c0e8887aba2ae50e99b86477a384b3.
* Add Style configurationReto Brunner2020-05-275-60/+48
| | | | | | | | | | The following functionalities are added to configure aerc ui styles. - Read stylesets from file with very basic fnmatch wildcard matching - Add default styleset - Support different stylesets as part of UiConfig allowing contextual styles. - Move widgets/ui elements to use the stylesets. - Add configuration manual for the styleset
* libui: don't require beeper for main contentDrew DeVault2020-05-051-2/+4
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