## Summary of the Pull Request
Updates the `closeTab` action to optionally take an index.
## PR Checklist
* [x] Closes#7180
* [x] CLA signed. If not, go over [here](https://cla.opensource.microsoft.com/microsoft/Terminal) and sign the CLA
* [ ] Tests added/passed
* [x] Documentation updated. If checked, please file a pull request on [our docs repo](https://github.com/MicrosoftDocs/terminal) and link it here: MicrosoftDocs/terminal#347
* [x] Schema updated.
* [ ] I've discussed this with core contributors already. If not checked, I'm ready to accept this work might be rejected in favor of a different grand plan. Issue number where discussion took place: #xxx
## Validation Steps Performed
Added the following configuration to `settings.json` and validated both key combinations behaved as expected. Also opened the command palette and ensured that the actions were displayed.
```json
{ "command": "closeTab", "keys": "ctrl+shift+delete" },
{ "command": { "action": "closeTab", "index": 0 }, "keys": "ctrl+shift+end" }
```
Noticed the json schema was listing the option as invalid even though it's accepted by WT. So added it to schema to remove the error.
## PR Checklist
* [x] CLA signed. If not, go over [here](https://cla.opensource.microsoft.com/microsoft/Terminal) and sign the CLA
* [x] Schema updated.
## Validation Steps Performed
No longer shows as invalid in VSCode.
This commit introduce three new `til` features:
* "til/latch.h": A std::latch clone, until we're on C++20.
* "til/mutex.h": A safe mutex wrapper, which only allows you access to the protected data after locking it. No more forgetting to lock mutexes!
* "til/throttled_func.h": Function invocation throttling used to be available as the `ThrottledFunc` class already. But this class is vastly more efficient and doesn't rely on any WinRT types.
This PR also adds a `til::ends_with` string helper which is `til::starts_with` counterpart.
## Validation Steps Performed
* Scrollbar throttling still works as it used to ✔️
* No performance regressions when printing big.txt ✔️Closes#10393
This PR Introduces `DxFontInfo` to simplify the logic in
`DxFontRenderData`.
`DxFontInfo` aims to be the DWrite equivalent of `FontInfo` &
`FontInfoBase` in GDI. It encapsulates the needed information to
represent a displayable font face. It also provides the ability to
resolve a font face based on the available fonts on the system.
## References
This is a follow-up of #9096.
Initial Italic support was introduced by #8580.
The motivation behind this is to support bold & bold-italic text in
Windows Terminal.
Fix startup race of resizing ConPTY
- Depending on what the timing and ordering is of the message coming in
from the signal thread, it may be applied to the startup structure
after the I/O thread has begun initializing the console buffer
structures but before it has signaled that it is done and the signal
thread is ready to make changes directly. This likely happens because
the end of the I/O thread setup has a weird unlock/lock jog for the
input thread and the signal thread might have been scheduled in the
middle of it.
- My resolution here is to ensure that the signal thread just keeps
storing the latest resize message until it is told that everything is
initialized. Whomever comes in to tell the signal thread this
information (under lock) will pickup and run the resize if one came in
before everything was ready. This should resolve the race.
## Validation Steps Performed
- o-sdn-o confirms this resolves their issue
Closes#10400
Replace PolyTextOutW with ExtTextOutW to allow substitution of missing
glyphs from other fonts.
Why not let Windows substitute the glyphs that are missing in the
current font? Currently the GDI renderer of conhost/OpenConsole uses
`PolyTextOutW` for drawing. `PolyTextOutW` doesn't try to substitute
any missing glyphs, so the only way to see, say, Hiragana is to change
the _whole font_ to something like MS Gothic (which is eye-bleeding, to
be honest).
A trivial replace `PolyTextOutW` -> `ExtTextOutW` does the trick.
Switch to `PolyTextOutW` happened in Windows 7 along with introduction
of conhost.exe. Substitution worked in previous Windows versions, where
internal NT interfaces were used.
# Before the change:
# After the change:
Closes#10472
The CursorStyle enum is declared as being of type `uint` on the C# side,
but as `size_t` on the C++ side. There's a C# size_t impostor we could
use, System.UIntPtr, but I don't want to risk changing the public API of
TerminalTheme and I don't know if it can be used as a base type for an
enum.
Anyway, since we don't have more than four billion cursor types I chose
to narrow the field to a uint32_t and unpack it in TerminalSetTheme.
Fixes#10485
Retrieved from https://microsoft.visualstudio.com os.2020 OS official/rs_wdx_dxp_windev 40df712b33a40e76aeeac87f823bbb028d2e3972
Related work items: MSFT-32007459
Fixes the `Invoke-CodeFormat` and `Invoke-OpenConsoleTests` functions in `OpenConsole.psm1` so that they can be run directly from PowerShell.
Addresses the issues found when creating #10447.
`Invoke-CodeFormat` did not work when invoked directly from PowerShell due to a relative path being passed into the .NET function `[IO.File]::WriteAllLines()`. The working directory for .NET objects does not change when you change directory in PowerShell, so the paths were being treated as relative to the initial working directory of the shell - which was not the terminal git repo.
`Invoke-OpenConsoleTests` had 3 issues:
1. The path to `TestHostApp` was wrong.
2. It would attempt to run the "in host app" tests both in the host app and not in the host app.
3. The test configuration in `tests.xml` wasn't in sync with the `runABC.cmd` files, so the remoting and control unit tests didn't run.
## Validation Steps Performed
1. Ran `Invoke-CodeFormat` and `runformat.cmd` from multiple directories and didn't see errors.
2. Ran `Invoke-OpenConsoleTests` and didn't see errors.
This update brings some significant changes to the Cascadia family:
* Arabic and Hebrew support
* Italics (the new ones, not the cursive ones)
* Tweaked letterforms and fixed interpolation values for the upright
faces.
Since we now have four font files, this commit also relocates them to a
much more reasonable place (res/fonts/) and tidies up the build and
exclude rules to make them more extensible in the future.
This commit introduces localization for the "Open in Windows Terminal"
menu item and differentiates it based on compile-time branding (rather
than runtime detection!).
@leonMSFT's tray icon pull request had the excellent idea to use the
TerminalApp's resource compartment for auxiliary resources for projects
that can't otherwise be localized the same way. Doing localization in
the shell extension (or WindowsTerminal.exe) would require us to use
MUIRCT and split the build process up to support mui files. That's a
huge amount of work... but this is *not* a huge amount of work.
Fixes#6112
## Summary of the Pull Request
#10297 found a bug in `ActionMap` where the `ToggleCommandPalette` key chord could not be found using `GetKeyBindingForAction`.
This was caused by the following:
- `AddAction`: when adding the action, the `ActionAndArgs` is basically added as `{ToggleCommandPalette, ToggleCommandLineArgs{}}` (Note the default ctor used for the action args)
- `GetKeyBindingForAction`: we're searching for an `ActionAndArgs` structured as `{ToggleCommandPalette, nullptr}`
- Since these are _technically_ two different actions, we are unable to find it.
This issue was fixed by making the `Hash(ActionAndArgs)` function smarter! If the `ActionAndArgs` has no args, but the `ShortcutAction` _supports_ args, generate the args using the default ctor.
By making `Hash()` smarter, everybody benefits from this logic! We can basically now enforce that `ActionAndArgs{ <X>, nullptr } == ActionAndArgs{ <X>, <default_ctor> }`.
## Validation Steps Performed
- Added a test.
- Tested this on #10297's branch and this does fix the bug
## Summary of the Pull Request
`ApplicationLanguages::PrimaryLanguageOverride` requires packaged activation.
This PR prevents any such application crashes, by skipping any calls to `PrimaryLanguageOverride`, as well as hiding the language selector in the settings UI.
## PR Checklist
* [x] I work here
* [x] Tests added/passed
* [ ] Documentation updated. If checked, please file a pull request on [our docs repo](https://github.com/MicrosoftDocs/terminal) and link it here: #xxx
* [ ] Schema updated.
## Validation Steps Performed
When WT is run unpackaged:
* Doesn't crash during start ✔️
* SUI doesn't show the language selector ✔️
Persist inbox conhost; delegate control activities to it via a pipe
## PR Checklist
* [x] Closes#10194 - WSL Debug Tap doesn't work
* [x] Closes#10134 - WSL Parameter is Incorrect
* [x] Closes#10413 - Ctrl+C not passed to client
* [x] Closes#10414 - Leftover processes on abrupt termination
* [x] Might help #10251 - Win+X Powershell sometimes fails to attach
* [x] I work here
* [x] Manually tested with assorted launch scenarios
## Detailed Description of the Pull Request / Additional comments
It turns out that there's a bit of ownership that goes on with the original inbox `conhost.exe` and the operating system/driver. The PID of that original `conhost.exe` is stowed when the initial connection is established and it is verified for several activities. This means that the plan of letting it go completely away and having the `OpenConsole.exe` take over all of its activities must be slightly revised.
I have tested the following two alternatives to keeping `conhost.exe` around and they do not work:
1. Replacing the original owner `conhost.exe` with `OpenConsole.exe` - A.) The driver does not allow this. Once the owner is registered, it cannot be replaced. B.) There's no way of updating this information inside the client process space and it is kept there too in the `kernelbase`/`conclnt` data from its initial connection.
2. Attempting to pick up the first packet (to determine headed/headless and other initial connection information that we use to determine whether handoff is appropriate or not) prior to registering any owner at all. - The driver doesn't allow this either. The owner must be registered prior to a packet coming through.
Put this mental model in your head:
CMD --> Conhost (inbox) --> OpenConsole (WT Package) --> Terminal (WT Package)
So since the `conhost.exe` needs to stick around, here's what I'm doing in this PR:
- `conhost.exe` in the OS will receive back the `OpenConsole.exe` process handle on a successful handoff and is expected to remain alive until the `OpenConsole.exe` exits. It's now waiting on that before it terminates itself.
- `conhost.exe` in the OS will establish a signal channel pipe and listen for control commands from `OpenConsole.exe` in a very similar fashion to how the `ConPTY` signal pipe operates between the Terminal and the PTY (provided by `OpenConsole.exe` in this particular example.) When `OpenConsole.exe` needs to do something that would be verified by the OS and rejected... it will instead signal the original `conhost.exe` to do that thing and it will go through.
- `conhost.exe` will give its own handle through to `OpenConsole.exe` so it can monitor its lifetime and cleanup. If the owner is gone, the session should end.
- Assorted handle cleanup that was leading to improper exits. I was confused between `.reset()` and `.release()` for some of the `wil::unique_any<T>` handling and it lead to leaked handles. The leaked handles meant that threads weren't aware of the other sides collapsing and wouldn't cleanup/terminate appropriately.
How does this fix things?
- For the WSL cases... WSL was specifically looking up the owner PID of the console session from the driver. That was the `conhost.exe` PID. If it exits, that PID isn't valid and is recycled. Thus the parameter is incorrect or other inappropriate WSL setup behaviors.
- Ctrl+C not passed... this is a signal the operating system rejects from a PID that is not the owner. This is now relayed through the original owner and it works.
- Leftover processes... I believe I explained this was both not-enough-monitoring of each others' process lifetimes coupled with mishandling of release/resetting handles and leaking them.
- Powershell sometimes fails to attach... my theory on this one is that it's a race that became upset when the `conhost.exe` disappeared while something about Powershell/.NET was still starting, much like the WSL one. I believe now that it is sticking around, it will be fine.
Also, this WILL require an OS update to complete improvement of functionality and I have revised the interface ID. This is considered an acceptable breaking change with no mitigation because we said this feature was an alpha preview.
## Validation Steps Performed
- Launched WSL with defapp set, it works
- Launched WSL with defapp set and the debug tap on, it works and opens in two tabs
- Launched CMD, ran ping, did Ctrl+C, it now receives it
- Launched Win+X powershell a ton of times. It seems fine now
- Launched cmd, powershell, wsl, etc. Killed assorted processes in the chain (client/conhost/openconsole/windowsterminal) and observed in Process Explorer (with a long delta timer so I could see it) that they all successfully tear down now without leftovers.
An exception was introduced for the 'Toggle Command Palette' action to **not** being dispatched. Otherwise the command palette that was just closed will become visible again.
## PR Checklist
* [x] Closes#10240
* [x] CLA signed. If not, go over [here](https://cla.opensource.microsoft.com/microsoft/Terminal) and sign the CLA
## Detailed Description of the Pull Request / Additional comments
- Selecting the `Toggle command palette` item in the command palette will now properly close the command palette.
- Opening and closing the Command Palette through shortcut keys is still working fine.
- Other command palette items are still working fine as well.
## Summary of the Pull Request
This commit introduces a copy constructor/operator for
`_CONSOLE_API_MSG`. The change is not trivial as the struct contains a
union of unnamed structs that cannot be copied using regular language
features. As such a copy operator using `memcpy` was implemented.
Additionally all access specifiers were removed, as those allow a C++
compiler to reorder struct members. This would break message passing.
This commit is a good opportunity to prevent such miscompilations
proactively.
## Validation Steps Performed
* Command prompts of WSL2 fish-shell and pwsh still work ✔️Closes#10076
<!-- Enter a brief description/summary of your PR here. What does it fix/what does it change/how was it tested (even manually, if necessary)? -->
## Summary of the Pull Request
Immediately cancelling the preview when the user is navigating back from a nested command.
<!-- Other than the issue solved, is this relevant to any other issues/existing PRs? -->
## References
<!-- Please review the items on the PR checklist before submitting-->
## PR Checklist
* [x] Closes#10165
* [x] CLA signed. If not, go over [here](https://cla.opensource.microsoft.com/microsoft/Terminal) and sign the CLA
* [ ] Tests added/passed
* [ ] Documentation updated. If checked, please file a pull request on [our docs repo](https://github.com/MicrosoftDocs/terminal) and link it here: #xxx
* [ ] Schema updated.
* [ ] I've discussed this with core contributors already. If not checked, I'm ready to accept this work might be rejected in favor of a different grand plan. Issue number where discussion took place: #xxx
<!-- Provide a more detailed description of the PR, other things fixed or any additional comments/features here -->
## Detailed Description of the Pull Request / Additional comments
Basically 2 changes are done here:
- Allow the click handler to run for the back button when the button has focus and user hits the enter key (similarly as hitting space now).
- Now immediately cancelling the preview when the user is navigating back. Felt nicer to do it immediately at that point then keeping the preview active until the user hits cancel to close the palette. So the preview is already cancelled at step **5** instead of 6 as mentioned in the reproduction steps here https://github.com/microsoft/terminal/issues/10165#issue-899838383. But of course let me know if you're not agreeing here 😀 .
<!-- Describe how you validated the behavior. Add automated tests wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed
- Open 'Color Scheme' and verified preview is still working fine when selecting different schemes.
- After tabbing back to the Back button verified that when hitting enter or space the preview is cancelled and the original color scheme is being used again.
- Then after going back to 'Color Scheme' previews are still working ok.
- After hitting Enter on one of the Color Schemes the scheme still becomes active as before.
## Summary of the Pull Request
Fixes a bug where the edit button in the actions page would have white text when in light theme. Now, we just fallback to XAML's built-in value (black in light theme and white in dark theme).
## References
#6900 - Epic
Closes#10406
This commit makes the feature staging header build in OS razzle.
Retrieved from https://microsoft.visualstudio.com os.2020 OS official/rs_wdx_dxp_windev cd1428ce557238663b7a748763ea8ce082b88256
Related work items: MSFT-33722503
## Summary of the Pull Request
This commit fixes various race conditions regarding the settings UI. It's unsafe to write to class members from background threads without acquiring mutexes or yielding to the main thread first.
By changing the settings reload code path to yield to the main thread early, we're able to cut down on code complexity and unsafe member accesses.
## PR Checklist
* [x] Closes#9273
* [x] I work here
* [x] Tests added/passed
## Validation Steps Performed
* Settings UI reloads without crashing ✔️
This pull request converts four of our existing `#ifdef` (or `#ifndef`)
`INSIDE_WINDOWS` blocks to til::features:
* Attempting to establish a handoff session (inside Windows only)
* The ability to *receive* a handoff session (outside Windows only)
* The DX engine (outside Windows only) and shaders (also outside only)
* Whether we use numpad event synthesis for clipboard/conpty (inside
Windows only)
Most of these are using the preprocessor verison of til::feature, only
because it is more difficult to gate the inclusion of headers on
constant expressions. I'd love to prefer the compile time version.
## Summary of the Pull Request
This PR adds a global "language" setting, which may be set to any supported BCP 47 tag.
Additionally a ComboBox is added to the settings UI under "Appearance", listing all languages with their localized names.
This PR introduces one new issue: If you change the language while the app is running, the UI will be in a torn state, as not all UI elements refresh automatically if the `PrimaryLanguageOverride` is changed.
## PR Checklist
* [x] Closes#5497
* [x] I work here
* [x] Tests added/passed
* [ ] Documentation updated. If checked, please file a pull request on [our docs repo](https://github.com/MicrosoftDocs/terminal) and link it here: #xxx
* [x] Schema updated
## Validation Steps Performed
* UI language changes when changing the "language" in settings.json before starting WT / while WT is running. ✔️
* "language" field is removed from settings.json if "Use system default" is selected. ✔️
* "language" field is added or updated in settings.json if any other language is selected. ✔️
* Removes qps- languages if debugFeatures is false. ✔️
* Correctly refreshes all UI elements with the new language. ❌
This pull request implements a "feature flagging" system that will let
us turn Terminal and conhost features on/off by branch, "release" status
or branding (Dev, Preview, etc.).
It's loosely modelled after the Windows OS concept of "Velocity," but
only insofar as it is driven by an XML document and there's a tool that
emits a header file for you to include.
It only supports toggling features at compile time, and the feature flag
evaluators are intended to be fully constant expressions.
Features are added to `src\features.xml` and marked with a "stage". For
now, the only stages available are `AlwaysDisabled` and `AlwaysEnabled`.
Features can be toggled to different states using branch and branding
tokens, as documented in the included feature flag docs.
For a given feature Feature_XYZ, we will emit two fixtures visible to
the compiler:
1. A preprocessor define `TIL_FEATURE_XYZ_ENABLED` (usable from MIDL,
C++ and C)
2. A feature class type `Feature_XYZ` with a static constexpr member
`IsEnabled()` (usable from C++, designed for `if constexpr()`).
Like Velocity, we rely on the compiler to eliminate dead code caused by
things that compile down to `if constexpr (false)`. :)
Michael suggested that we could use `WindowsInbox` as a branding to
determine when we were being built inside Windows to supplant our use of
the `__INSIDE_WINDOWS` preprocessor token. It was brilliant.
Design Decisions
----------------
* Emitting the header as part of an MSBuild project
* WHY: This allows the MSBuild engine to ensure that the build is
only run once, even in a parallel build situation.
* Only having one feature flag document for the entire project
* WHY: Ease.
* Forcibly including `TilFeatureStaging` with `/FI` for all CL compiler
invocations.
* WHY: If this is a project-wide feature system, we should make it as
easy as possible to use.
* Emitting preprocessor definitions instead of constexpr/consteval
* WHY: Removing entire functions/includes is impossible with `if
constexpr`.
* WHY: MIDL cannot use a `static constexpr bool`, but it can rely on
the C preprocessor to remove text.
* Using MSBuild to emit the text instead of PowerShell
* WHY: This allows us to leverage MSBuild's `WriteOnlyWhenDifferent`
task parameter to avoid changing the file's modification time when
it would have resulted in the same contents. This lets us use the
same FeatureStaging header across multiple builds and multiple
branches and brandings _assuming that they do not result in a
feature flag change_.
* The risk in using a force-include is always that it, for some
reason, determines that the entire project is out of date. We've
gone to great lengths to make sure that it only does so if the
features _actually materially changed_.
## Summary of the Pull Request
Fixes a bug where top-level iterable commands were not serialized.
## PR Checklist
* [X] Closes#10365
* [X] Tests added/passed
## Detailed Description of the Pull Request / Additional comments
- `Command::ToJson`:
- iterable commands deserve the same treatment as nested commands
- `ActionMap`:
- Similar to how we store nested commands, iterable commands need to be handled separately from standard commands. Then, when generating the name map, we make sure we export the iterable commands at the same time we export the nested commands.
Add missing keys to the schema:
- globalSummon (and args: desktop, monitor, name, dropdownDuration, toggleVisibility)
- quakeMode
- iterateOn
- commands
Also enforces required keys for commands and deprecates "keybindings"
## PR Checklist
* [x] Closes#7443
* [x] CLA signed. If not, go over [here](https://cla.opensource.microsoft.com/microsoft/Terminal) and sign the CLA
* [x] Schema updated.
## Detailed Description of the Pull Request / Additional comments
There were some other pending keys mentioned on the issue, but I don't think they are pending anymore.
## Validation Steps Performed
Changed the `"$schema"` value in my settings.json to point to the edited one.
#### ⚠️ This targets #10051
## Summary of the Pull Request
This PR creates a `Samples` solution which can be used for quickly testing our particular WinUI + Xaml Islands + wapproj setup, with a `TermControl`. This lets us quickly prototype and minimally repro xaml islands bugs, but also lets us iterate quickly on changes in the process model. I'll be using this in the future to prove that the out-of-proc control works (for tear-out), without having to tear up the entire `TerminalApp` all at once.
While I'll be leaning on this extensively for tear-out prototyping, I've also found myself wanting this kind of sample sln many times in the past. We run into bugs all the time where we're not sure if they're XAML Islands bugs or Terminal bugs. However, standing up a scratch sln with MUX hooked up, and a `XamlApplication` from the toolkit, and XAML Islands is time consuming. This sample sln should let us validate if bugs are XI bugs or Terminal bugs much easier.
## References
* Tear-out: #1256
* Megathread: #5000
* Project: https://github.com/microsoft/terminal/projects/5
## PR Checklist
* [x] Closes one bullet point of https://github.com/microsoft/terminal/projects/5#card-50760312
* [x] I work here
* [x] Tests added/passed
* [n/a] Requires documentation to be updated
## Detailed Description of the Pull Request / Additional comments
This is _largely_ a copy-pasta of our existing projects, in massively simplified form. I'm gonna wontfix most comments on the code that was copy-pasta'd. If it's bad here, it's probably also bad in the real version in `OpenConsole.sln`.
* I made an entirely new `.sln` for this, so that these samples wouldn't need to build in CI. They're not critical code, they're literally just for prototyping.
* `TerminalAppLib` & `TerminalApp` became `SampleAppLib` and `SampleApp`. This is just a simple application hosting a single `TermControl`. It references the winmds and dlls from the main `OpenConsole.sln`, but in a way that would be more like a project consuming a nuget feed of the control, rather than a `ProjectReference`.
- It still does all the `App.xaml` and `Toolkit.XamlApplication` stuff that TerminalApp does, so that it can load MUX resources, and do MUX-y things.
* `WindowsTerminal` became `WindowExe`. I tore out all of the `NonClientIslandWindow` stuff - this is just a window with a xaml island.
* `CascadiaPackage` became `Package`. It does the vclibs hack again for the `TerminalConnection` dlls (because this package can't actually determine that `TerminalConnection.dll` requires `cprest*.dll`), as well as for `windowsterminal.exe` (which we'll need in the future for out-of-proc controls). I got rid of all the Dev/Preview/Release asset machinations as well.
Wherever possible, I changed filenames slightly so that they won't get accitdentally opened when someone tries to open a file by name in their editor (**cough** sublime's <kbd>ctrl+p</kbd> menu **cough**).
## Validation Steps Performed
The sample app launches, and displays a TermControl. What else do you want? <sup>(_rhetorical, not a prompt for a wishlist_)</sup>
(cherry picked from commit 30d6cf4839fca8ac8203f6c2489b02a4088b851e)
Summon, not toggle visibility, window on command line dispatch
## PR Checklist
* [x] Closes#10292
* [x] I work here
* [x] Manual test
## Detailed Description of the Pull Request / Additional comments
- This is the same as #10389, just a different route. I didn't realize it at the time.
## Validation Steps Performed
- Opened a window. Dispatched the `wt -w 0 - p <profile>` and watched it join/summon instead of minimize the active WT.
The flyout wasn't very polished, so I did some adjustments.
It's all visual changes, functionality should be the same.
* made the flyout use OverlayCornerRadius and 16px padding (to match WinUI 2.6)
* changed ColorPicker to muxc:ColorPicker for new styles (the color schemes picker too)
* changed "Custom" Button into a ToggleButton
* no longer needs ellipsis - localization files should be updated
* OK button was moved to the right and uses accent color
* adjusted margins and padding
* tweaked the color boxes to _look_ like the ones in color schemes
 
## Validation Steps Performed
* Color picker in settings UI still works ✔️
* Color picker for tabs still works ✔️
Activate window only (no toggle) when inbound connection arrives
## PR Checklist
* [x] Closes#10386
* [x] I work here
* [x] Manual test passed.
## Detailed Description of the Pull Request / Additional comments
The default for the `SummonWindowBehavior` is a toggle of the visibility state. I didn't realize that. We do not want that for inbound connections. We want always-brought-to-front.
## Validation Steps Performed
- Made the change. Launched Terminal as default as active window. Runbox'd another command. It didn't hide itself like it used to. Stays visible.
This PR adds a new PercentageSignConverter that appends the percentage sign to a number. The new converter is being used by the Acrylic opacity slider label and the Background image opacity slider label.
* [x] Closes#10289
## PR Checklist
* [x] Closes random crash that @lhecker sent me on Teams
* [x] I work here.
## Detailed Description of the Pull Request / Additional comments
- Any change to the renderer engine has to be done under lock. Leonard gave me a crash where the dirty rectangles changed out from under the renderer thread. By inspection, only one spot in `ControlCore` is modifying the engine outside of lock.... here. The dump is too far along to definitively prove the issue and it's sort of a race so its difficult to repro. But the theory is sound that all writes to the dirty regions must be done under lock. So here's a fix.
Restore embedded manifests to say 18362 or unpackaged activation won't work (for helix testing.)
## PR Checklist
* [x] Closes#10265
* [x] I work here
* [x] Tests now pass
## Detailed Description of the Pull Request / Additional comments
- Unpackaged activation uses the embedded manifest inside the exe. We use unpackaged activation to run our tests in Helix as it's easier that way. Turns out the 1903/19h1 OS thinks 19041 isn't greater than the minimum XAML islands version of 18226 and blocks the load of `TerminalApp.dll` causing a crash (fail fast) on launch. For **REASONS**, 18362 is considered greater than 18226.
- Packaged activation will use the value in the .appxmanifest and everything is somehow still fine there even with it saying 19041 now.
## Validation Steps Performed
- Kicking a Helix-run off on this branch: https://dev.azure.com/ms/terminal/_build/results?buildId=177336&view=results
Restore helix runs by passing parameters
## PR Checklist
* [x] Closes#10266
* [x] I work here
* [x] Tests added/passed
## Detailed Description of the Pull Request / Additional comments
It looks like at some point the configuration and platform variables got messed up passing into the Helix steps and preventing the Powershell scripts from setting up the Helix payload correctly. This restores them to functionality.
## Validation Steps Performed
- Ran it in the pipeline
