<!-- 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
This PR splits the anchored and unanchored tab switcher into two. The anchored tab switcher is now baked into `nextTab`/`prevTab`, and the unanchored tab switcher command is just named `tabSearch`. `tabSearch` takes no arguments. To reflect this distinction, `CommandPalette.cpp` now refers to one as `TabSwitchMode` and the other as `TabSearchMode`.
I've added a global setting named `useTabSwitcher` (name up for debate) that makes the Terminal use the anchored tab switcher experience for `nextTab` and `prevTab`.
I've also given the control the ability to detect <kbd>Alt</kbd> KeyUp events and to dispatch keybinding events. By listening for keybindings, the ATS can react to `nextTab`/`prevTab` invocations for navigation in addition to listening for <kbd>tab</kbd> and the arrow keys.
Closes#7178
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## PR Checklist
* [x] CLA signed.
* [x] Documentation updates: microsoftdocs/terminal#107
* [x] Schema updated.
## Summary of the Pull Request
* Add a chevron for nested commands
* Add the text of the parent command when entering a child command
## References
## PR Checklist
* [x] Closes#7265
* [x] I work here
* [n/a] Tests added/passed
* [n/a] Requires documentation to be updated
## Validation Steps Performed
_look at that gif_
## Summary of the Pull Request
This PR adds support for both _nested_ and _iterable_ commands in the Command palette.
* **Nested commands**: These are commands that include additional sub-commands. When the user selects on of these, the palette will update to only show the nested commands.
* **Iterable commands**: These are commands what allow the user to define only a single command, which is repeated once for every profile. (in the future, also repeated for color schemes, themes, etc.)
The above gif uses the following json:
```json
{
"name": "Split Pane...",
"commands": [
{
"iterateOn": "profiles",
"name": "Split with ${profile.name}...",
"commands": [
{ "command": { "action": "splitPane", "profile": "${profile.name}", "split": "automatic" } },
{ "command": { "action": "splitPane", "profile": "${profile.name}", "split": "vertical" } },
{ "command": { "action": "splitPane", "profile": "${profile.name}", "split": "horizontal" } }
]
}
]
},
```
## References
## PR Checklist
* [x] Closes#3994
* [x] I work here
* [x] Tests added/passed
* [ ] Requires documentation to be updated - Sure does, but we'll finish polishing this first.
## Detailed Description of the Pull Request / Additional comments
We've now gotta keep the original json for a command around, so that once we know what all the profiles will be, we can expand the commands that need it.
We've also got to parse commands recursively, because they might have any number of child commands.
These together made the command parsing a _lot_ more complicated, but it feels good so far.
## Validation Steps Performed
* wrote a bunch of tests
* Played with it a bunch
## Summary of the Pull Request
This PR adds the Advanced Tab Switcher (ATS) to Terminal. It'll work
similarly to VSCode's tab switcher. Because this implementation rides
off a lot of the Command Palette's XAML code, it'll look just like the
Command Palette, and also have support for tab title search.
## References
#3753 - ATS Spec
Closes#1502
The command palette is a ListView of commands. As you type into the
search box, commands are added or removed from the ListView. Currently,
each update is done by completely clearing the backing list, then adding
back any items that should be displayed. However, this defeats the
ListView's built-in animations: upon every keystroke, ListView displays
its list-clearing animation, then animates the insertion of every item
that wasn't deleted. This results in noticeable flickering.
This PR changes the update logic so that it updates the list using
(roughly) the minimum number of Insert and Remove calls, so the ListView
makes smoother transitions as you type.
I implemented it by keeping the existing code that builds the filtered
list, but I changed it to build into a scratch list. Then I grafted on
a generic delta algorithm to make the real list look like the scratch
list.
To verify the delta algorithm, I tested all 360,000 permutations of
pairs of up to 5 element lists in a toy C# app.
## Validation
I'm not sure if my screen capture tool really caught all the flickering
here, but the screencasts below should give a rough idea of the
difference. (All the flickering was becoming a nuisance while I was
testing out the HC changes.)
See the images in #6939 for more info.
Co-authored-by: Jeffrey Tippet <jtippet@microsoft.com>
## Summary of the Pull Request
Pretty straightforward. Logs three scenarios:
* The user opened the command palette (and which mode it was opened in)
* The user ran a command from the palette
* The user dismissed the palette without running an action.
We discussed this in team sync yesterday.
## PR Checklist
* [x] I work here
* [n/a] Requires documentation to be updated
## Summary of the Pull Request
This adds a first iteration on the command palette. Notable missing features are:
* Commandline mode: This will be a follow-up PR, following the merge of #6537
* nested and iterable commands: These will additionally be a follow-up PR.
This is also additionally based off the addenda in #6532.
This does not bind a key for the palette by default. That will be done when the above follow-ups are completed.
## References
* #2046 - The original command palette thread
* #5400 - This is the megathread for all command palette issues, which is tracking a bunch of additional follow up work
* #5674 and #6532 - specs
* #6537 - related
## PR Checklist
* [x] Closes#2046
- incidentally also closes#6645
* [x] I work here
* [x] Tests added/passed
* [ ] Requires documentation to be updated - delaying this until it's more polished.
## Detailed Description of the Pull Request / Additional comments
* There's a lot of code for autogenerating command names. That's all in `ActionArgs.cpp`, because each case is so _not_ boilerplate, unlike the rest of the code in `ActionArgs.h`.
## Validation Steps Performed
* I've been playing with this for months.
* Tests
* Selfhost with the team
