Selection is generally stored as an inclusive start and end. This PR
makes the end exclusive which now allows degenerate selections, namely
in mark mode. This also modifies mouse selection to round to the nearest
cell boundary (see #5099) and improves word boundaries to be a bit more
modern and make sense for degenerate selections (similar to #15787).
Closes#5099Closes#13447Closes#17892
## Detailed Description of the Pull Request / Additional comments
- Buffer, Viewport, and Point
- Introduced a few new functions here to find word boundaries, delimiter
class runs, and glyph boundaries.
- 📝These new functions should be able to replace a few other functions
(i.e. `GetWordStart` --> `GetWordStart2`). That migration is going to be
a part of #4423 to reduce the risk of breaking UIA.
- Viewport: added a few functions to handle navigating the _exclusive_
bounds (namely allowing RightExclusive as a position for buffer
coordinates). This is important for selection to be able to highlight
the entire line.
- 📝`BottomInclusiveRightExclusive()` will replace `EndExclusive` in the
UIA code
- Point: `iterate_rows_exclusive` is similar to `iterate_rows`, except
it has handling for RightExclusive
- Renderer
- Use `iterate_rows_exclusive` for proper handling (this actually fixed
a lot of our issues)
- Remove some workarounds in `_drawHighlighted` (this is a boundary
where we got inclusive coords and made them exclusive, but now we don't
need that!)
- Terminal
- fix selection marker rendering
- `_ConvertToBufferCell()`: add a param to allow for RightExclusive or
clamp it to RightInclusive (original behavior). Both are useful!
- Use new `GetWordStart2` and `GetWordEnd2` to improve word boundaries
and make them feel right now that the selection an exclusive range.
- Convert a few `IsInBounds` --> `IsInExclusiveBounds` for safety and
correctness
- Add `TriggerSelection` to `SelectNewRegion`
- 📝 We normally called `TriggerSelection` in a different layer, but it
turns out, UIA's `Select` function wouldn't actually update the
renderer. Whoops! This fixes that.
- TermControl
- `_getTerminalPosition` now has a new param to round to the nearest
cell (see #5099)
- UIA
- `TermControlUIAProvider::GetSelectionRange` no need to convert from
inclusive range to exclusive range anymore!
- `TextBuffer::GetPlainText` now works on an exclusive range, so no need
to convert the range anymore!
## Validation Steps Performed
This fundamental change impacts a lot of scenarios:
- ✅Rendering selections
- ✅Selection markers
- ✅Copy text
- ✅Session restore
- ✅Mark mode navigation (i.e. character, word, line, buffer)
- ✅Mouse selection (i.e. click+drag, shift+click, multi-click,
alt+click)
- ✅Hyperlinks (interaction and rendering)
- ✅Accessibility (i.e. get selection, movement, text extraction,
selecting text)
- [ ] Prev/Next Command/Output (untested)
- ✅Unit tests
## Follow-ups
- Refs #4423
- Now that selection and UIA are both exclusive ranges, it should be a
lot easier to deduplicate code between selection and UIA. We should be
able to remove `EndExclusive` as well when we do that. This'll also be
an opportunity to modernize that code and use more `til` classes.
PR #10642 and #11290 introduced an adjustment for the cursor position
used to generate VT mouse mode events.
One of the decisions made in those PRs was to only send coordinates
where Y was >= 0, so if you were off the top of the screen you wouldn't
get any events. However, terminal emulators are expected to send
_clamped_ events when the mouse is off the screen. This decision broke
clamping Y to 0 when the mouse was above the screen.
The other decision was to only adjust the Y coordinate if the core's
`ScrollOffset` was greater than 0. It turns out that `ScrollOffset` _is
0_ when you are scrolled all the way back in teh buffer. With this
check, we would clamp coordinates properly _until the top line of the
scrollback was visible_, at which point we would send those coordinates
over directly. This resulted in the same weird behavior as observed in
#10190.
I've fixed both of those things. Core is expected to receive negative
coordinates and clamp them to the viewport. ScrollOffset should never be
below 0, as it refers to the top visible buffer line.
In addition to that, #17744 uncovered that we were allowing
autoscrolling to happen even when VT mouse events were being generated.
I added a way for `ControlInteractivity` to halt further event
processing. It's crude.
Refs #10190Closes#17744
`HSTRING` does not permit strings that aren't null-terminated.
As such we'll simply use a plain char array which compiles down to
a `UINT32` and `wchar_t*` pointer pair. Unfortunately, cppwinrt uses
`char16_t` in place of `wchar_t`, and also offers no trivial conversion
between `winrt::array_view` and `std::wstring_view` either.
As such, most of this PR is about explicit type casting.
Closes#17697
## Validation Steps Performed
* Patch the `DeviceAttributes` implementation in `adaptDispatch.cpp`
to respond like this:
```cpp
_api.ReturnResponse({L"ABCD", 3});
```
* Open a WSL shell and execute this:
```sh
printf "\e[c"; read
```
* Doesn't crash ✅
While `double` is probably generally preferable for UI code,
our application is essentially a complex wrapper wrapper around
DWrite, D2D and D3D, all of which use `float` exclusively.
Of course it also uses XAML, but that one uses `float` for roughly
1/3rd of its API functions, so I'm not sure what it prefers.
Additionally, it's mostly a coincidence that we use WinUI/XAML for
Windows Terminal whereas DWrite/D2D/D3D are effectively essential.
This is demonstrated by the fact that we have a `HwndTerminal`,
while there's no alternative to e.g. D3D on Windows.
The goal of this PR is that DIP based calculations never end up
mixing `float` and `double`. This PR also changes opacity-related
values to `float` because I felt like that fits the theme.
I noticed this bug while resizing my window on my 150% scale display.
Every 3 "snaps" of the window size, it would fail to resize the text
buffer. I found that this occurs, because we convert the swap chain
size from a float into a double, which converts my 597.333313 height
into 597.33331298828125, which then multiplied by 1.5 results in
895.999969482421875. If you just cast this to an integer, it'll
result in a height of 895px instead of the expected 896px.
This PR addresses the issue in two ways:
* Replace casts to integers with `lrint` or `floor`, etc.
* Remove many of the redundant double <> float conversions.
## PR Checklist
* Resizing my window always resizes the text buffer ✅
This builds upon #10749. When we added a separate pivot to track the "active" anchor, we forgot to update the pivot while circling. What does that mean? Moving the mouse would trigger us to update the selection using new endpoint and the old _pivot_, which hadn't been updated.
There's probably a more elegant way of doing this, but it's good enough.
Updated the test to cover this as well.
Closes#14462
This is a follow-up of #13025 to make the members of `til::point/size/rect`
uniform and consistent without the use of `unions`. The only file that has
any changes is `src/host/getset.cpp` where an if condition was simplified.
## Validation Steps Performed
* Host unit tests ✅
* Host feature tests ✅
* ControlCore feature tests ✅
If the opacity is set to 100%, the background becomes solid instead of 'fully opaque acrylic'. If the opacity is below 100% the acrylic material is re-enabled (depending on the user's settings).
## Validation Steps Performed
I updated two unit tests to reflect the change in behavior and manually tested the transition from <100% opacity to 100% opacity (and vice versa) on win11.
Steps:
1. Start with 100% opacity and acrylic material enabled.
2. Decrease opacity and observe acrylic effect.
3. Increase opacity back to 100% and disable the acrylic effect.
4. Decrease opacity and notice that acrylic effect is no longer there.
Closes#12880
Previously this project used a great variety of types to present text buffer
coordinates: `short`, `unsigned short`, `int`, `unsigned int`, `size_t`,
`ptrdiff_t`, `COORD`/`SMALL_RECT` (aka `short`), and more.
This massive commit migrates almost all use of those types over to the
centralized types `til::point`/`size`/`rect`/`inclusive_rect` and their
underlying type `til::CoordType` (aka `int32_t`).
Due to the size of the changeset and statistics I expect it to contain bugs.
The biggest risk I see is that some code potentially, maybe implicitly, expected
arithmetic to be mod 2^16 and that this code now allows it to be mod 2^32.
Any narrowing into `short` later on would then throw exceptions.
## PR Checklist
* [x] Closes#4015
* [x] I work here
* [x] Tests added/passed
## Validation Steps Performed
Casual usage of OpenConsole and Windows Terminal. ✅
#4015 requires sweeping changes in order to allow a migration of our buffer
coordinates from `int16_t` to `int32_t`. This commit reduces the size of
future commits by using type inference wherever possible, dropping the
need to manually adjust types throughout the project later.
As an added bonus this commit standardizes the alignment of cv qualifiers
to be always left of the type (e.g. `const T&` instead of `T const&`).
The migration to type inference with `auto` was mostly done
using JetBrains Resharper with some manual intervention and the
standardization of cv qualifier alignment using clang-format 14.
## References
This is preparation work for #4015.
## Validation Steps Performed
* Tests pass ✅
VTE only rewraps the contents of the (normal screen + its scrollback
buffer) on a resize event. It doesn't rewrap the contents of the
alternate screen. The alternate screen is used by applications which
repaint it after a resize event. So, it doesn't really matter. However,
in that short time window, after resizing the terminal but before the
application catches up, this prevents vertical lines
It was really hard to get a gif of this where it happened and was small
enough to upload to GH, but there is one in #12719.
There's something in this branch that fixes a scrolling issue in the
parent PR. I'm partially filing this so I can look at the diffs here and
try and figure out what that is. I kinda want to just take all 3 alt
buffer PRs as a single atomic unit, but splitting them up made sense
from a review standpoint.
Closes#3493
This commit makes the following changes to `til::point/size/rectangle`
for the following reasons:
* Rename `rectangle` into `rect`
This will make the naming consistent with a later `small_rect` struct
as well as the existing Win32 POINT/SIZE/RECT structs.
* Standardizes til wrappers on `int32_t` instead of `ptrdiff_t`
Provides a consistent behavior between x86 and x64, preventing accidental
errors on x86, as it's less rigorously tested than x64. Additionally it
improves interop with MIDL3 which only supports fixed width integer types.
* Standardizes til wrappers on throwing `gsl::narrow_error`
Makes the behavior of our code more consistent.
* Makes all eligible functions `constexpr`
Because why not.
* Removes implicit constructors and conversion operators
This is a complex and controversial topic. My reasons are: You can't Ctrl+F
for an implicit conversion. This breaks most non-IDE engines, like the one on
GitHub or those we have internally at MS. This is important for me as these
implicit conversion operators aren't cost free. Narrowing integers itself,
as well as the boundary checks that need to be done have a certain,
fixed overhead each time. Additionally the lack of noexcept prevents
many advanced compiler optimizations. Removing their use entirely
drops conhost's code segment size by around ~6.5%.
## References
Preliminary work for #4015.
## PR Checklist
* [x] I work here
* [x] Tests added/passed
## Validation Steps Performed
I'm mostly relying on our unit tests here. Both OpenConsole and WT appear to work fine.
## Summary of the Pull Request
Currently, the TermControl and ControlCore recieve a settings object that implements `IControlSettings`. They use for this for both reading the settings they should use, and also storing some runtime overrides to those settings (namely, `Opacity`). The object they recieve currently is a `T.S.M.TerminalSettings` object, as well as another `TerminalSettings` object if the user wants to have an `unfocusedAppearance`. All these are all hosted in the same process, so everything is fine and dandy.
With the upcoming move to having the Terminal split into multiple processes, this will no longer work. If the `ControlCore` in the Content Process is given a pointer to a `TerminalSettings` in a certain Window Process, and that control is subsequently moved to another window, then there's no guarantee that the original `TerminalSettings` object continues to exist. In this scenario, when window 1 is closed, now the Core is unable to read any settings, because the process that owned that object no longer exists.
The solution to this issue is to have the `ControlCore`'s own their own copy of the settings they were created with. that way, they can be confident those settings will always exist. Enter `ControlSettings`, a dumb struct for just storing all the contents of the Settings. I used x-macros for this, so that we don't need to copy-paste into this file every time we add a setting.
Changing this has all sorts of other fallout effects:
* Previewing a scheme/anything is a tad bit more annoying. Before, we could just sneak the previewed scheme into a `TerminalSettings` that lived between the settings we created the control with, and the settings they were actually using, and it would _just work_. Even explaining that here, it sounds like magic, because it was. However, now, the TermControl can't use a layered `TerminalSettings` for the settings anymore. Now we need to actually read out the current color table, and set the whole scheme when we change it. So now there's also a `Microsoft.Terminal.Core.Scheme` _struct_ for holding that data.
- Why a `struct`? Because that will go across the process boundary as a blob, rather than as a pointer to an object in the other process. That way we can transit the whole struct from window to core safely.
* A TermControl doesn't have a `IControlSettings` at all anymore - it initalizes itself via the settings in the `Core`. This will be useful for tear-out, when we need to have the `TermControl` initialize itself from just a `ControlCore`, without being able to rebuild the settings from scratch.
* The `TabTests` that were written under the assumption that the Control had a layered `TerminalSettings` obviously broke, as they were designed to. They've been modified to reflect the new reality.
* When we initialize the Control, we give it the settings and the `UnfocusedAppearance` all at once. If we don't give it an `unfocusedAppearance`, it will just use the focused appearance as the unfocused appearance.
* The Control no longer can _write_ settings to the `ControlSettings`. We don't want to be storing things in there. Pretty much everything we set in the control, we store somewhere other than in the settings object itself. However, `opacity` and `useAcrylic`, we need to store in a handy new `RUNTIME_SETTING` property. We can write those runtime overrides to those properties.
* We no longer store the color scheme for a pane in the persisted state. I'm tracking that in #9800. I don't think it's too hard to add back, but I wanted this in front of eyes sooner than later.
## References
* #1256
* #5000
* #9794 has the scheme previewing in it.
* #9818 is WAY more possible now.
## PR Checklist
* [x] Surprisingly there wasn't ever a card or issue for this one. This was only ever a bullet point in #5000.
* A bunch of these issues were fixed along the way, though I never intended to fix them:
* [x] Closes#11571
* [x] Closes#11586
* [x] Closes#7219
* [x] Closes#11067
* [x] I think #11623 actually ended up resolving this one, but I'm double tapping on it here: Closes#5703
* [x] I work here
* [x] Tests added/passed
* [n/a] Requires documentation to be updated
## Detailed Description of the Pull Request / Additional comments
Along the way I tried to clean up code where possible, but not too agressively.
I didn't end up converting the various `MockTerminalSettings` classes used in tests to the x macros quite yet. I wanted to merge this with #11416 in `main` before I went too crazy.
## Validation Steps Performed
* [x] Scheme previewing works
* [x] Adjusting the font size works
* [x] focused/unfocused appearances still work
* [x] mouse-wheeling opacity still works
* [x] acrylic & cleartype still does the right thing
* [x] saving the settings still works
* [x] going wild on sliding the opacity slider in the settings doesn't crash the terminal
* [x] toggling retro effects with a keybinding still works
* [x] toggling retro effects with the command palette works
* [x] The matrix of (`useAcrylic(true,false)`)x(`opacity(50,100)`)x(`antialiasingMode(cleartype, grayscale)`) works as expected. Slightly changed, falls back to grayscale more often, but looks more right.
In #11180 we made `opacity` independent from `useAcrylic`. We also changed the mouse wheel behavior to only change opacity, and not mess with acrylic.
However, on Windows 10, vintage opacity doesn't work at all. So there, we still need to manually enable acrylic when the user requests opacity.
* [x] Closes#11285
SUI changes in action:
This commit reduces the code surface that interacts with raw JSON data,
reducing code complexity and improving maintainability.
Files that needed to be changed drastically were additionally
cleaned up to remove any code cruft that has accrued over time.
In order to facility this the following changes were made:
* Move JSON handling from `CascadiaSettings` into `SettingsLoader`
This allows us to use STL containers for data model instances.
For instance profiles are now added to a hashmap for O(1) lookup.
* JSON parsing within `SettingsLoader` doesn't differentiate between user,
inbox and fragment JSON data, reducing code complexity and size.
It also centralizes common concerns, like profile deduplication and
ensuring that all profiles are assigned a GUID.
* Direct JSON modification, like the insertion of dynamic profiles into
settings.json were removed. This vastly reduces code complexity,
but unfortunately removes support for comments in JSON on first start.
* `ColorScheme`s cannot be layered. As such its `LayerJson` API was replaced
with `FromJson`, allowing us to remove JSON-based color scheme validation.
* `Profile`s used to test their wish to layer using `ShouldBeLayered`, which
was replaced with a GUID-based hashmap lookup on previously parsed profiles.
Further changes were made as improvements upon the previous changes:
* Compact the JSON files embedded binary, saving 28kB
* Prevent double-initialization of the color table in `ColorScheme`
* Making `til::color` getters `constexpr`, allow better optimizations
The result is a reduction of:
* 48kB binary size for the Settings.Model.dll
* 5-10% startup duration
* 26% code for the `CascadiaSettings` class
* 1% overall code in this project
Furthermore this results in the following breaking changes:
* The long deprecated "globals" settings object will not be detected and no
warning will be created during load.
* The initial creation of a new settings.json will not produce helpful comments.
Both cases are caused by the removal of manual JSON handling and the
move to representing the settings file with model objects instead
## PR Checklist
* [x] Closes#5276
* [x] Closes#7421
* [x] I work here
* [x] Tests added/passed
## Validation Steps Performed
* Out-of-box-experience is identical to before ✔️
(Except for the settings.json file lacking comments.)
* Existing user settings load correctly ✔️
* New WSL instances are added to user settings ✔️
* New fragments are added to user settings ✔️
* All profiles are assigned GUIDs ✔️
## Summary of the Pull Request
Adds support for vintage style opacity, on Windows 11+. The API we're using for this exists since the time immemorial, but there's a bug in XAML Islands that prevents it from working right until Windows 11 (which we're working on backporting).
Replaces the `acrylicOpacity` setting with `opacity`, which is a uint between 0 and 100 (inclusive), default to 100.
`useAcrylic` now controls whether acrylic is used or not. Setting an opacity < 100 with `"useAcrylic": false` will use vintage style opacity.
Mouse wheeling adjusts opacity. Whether acrylic is used or not is dependent upon `useAcrylic`.
`opacity` will stealthily default to 50 if `useAcrylic:true` is set.
## PR Checklist
* [x] Closes#603
* [x] I work here
* [x] Tests added/passed
* [x] https://github.com/MicrosoftDocs/terminal/pull/416
## Detailed Description of the Pull Request / Additional comments
Opacity was moved to AppearanceConfig. In the future, I have a mind to allow unfocused acrylic, so that'll be important then.
## Validation Steps Performed
_just look at it_
When our text buffer is full, newlines cause the buffer to scroll underneath the viewport (rather than the viewport moving down). This was causing selections made during text output to scroll down. To solve this, when we increment the circular buffer, we decrement the y-coordinates of the current selections by 1. We also invalidate the previous selection rects.
Closes#10319
#### ⚠️ targets #10051
## Summary of the Pull Request
This updates our `ThrottledFunc`s to take a dispatcher parameter. This means that we can use the `Windows::UI::Core::CoreDispatcher` in the `TermControl`, where there's always a `CoreDispatcher`, and use a `Windows::System::DispatcherQueue` in `ControlCore`/`ControlInteractivity`. When running in-proc, these are always the _same thing_. However, out-of-proc, the core needs a dispatcher queue that's not tied to a UI thread (because the content proces _doesn't have a UI thread!_).
This lets us get rid of the output event, because we don't need to bubble that event out to the `TermControl` to let it throttle that update anymore.
## References
* Tear-out: #1256
* Megathread: #5000
* Project: https://github.com/microsoft/terminal/projects/5
## PR Checklist
* [x] This is a part of #1256
* [x] I work here
* [n/a] Tests added/passed
* [n/a] Requires documentation to be updated
## Detailed Description of the Pull Request / Additional comments
Fortunately, `winrt::resume_foreground` works the same on both a `CoreDispatcher` and a `DispatcherQueue`, so this wasn't too hard!
## Validation Steps Performed
This was validated in `dev/migrie/oop/the-whole-thing` (or `dev/migrie/oop/connection-factory`, I forget which), and I made sure that it worked both in-proc and x-proc. Not only that, _it wasn't any slower_!This reverts commit 04b751faa70680bf0296063deacec4657c6ff9d6.
## Summary of the Pull Request
This fixes two bugs related to dragging into the bounds of the `TermControl`. Although the fixes are fairly small, I'm batching them up, because I don't want to stack 2 more PRs on top of #10051.
* #9109
- This is fixed by only starting an autoscroll if the click&drag actually started within the bounds of the control.
* #4603
- Building on the above change, only modify the selection when the drag started in the control.
## References
* srsly go read #10051.
## PR Checklist
* [x] Closes#9109
* [x] Closes#4603
* [x] I work here
* [x] Test added
* [n/a] Requires documentation to be updated
## Detailed Description of the Pull Request / Additional comments
This is kind of annoying that the auto-scrolling is handled by the TermControl, but it uses a timer that's still a WinUI construct.
We only want to start the auto-scrolling behavior when the drag started _inside_ the control. Otherwise, in the tab drag scenario, dragging into the bounds of the TermControl will trick it into thinking it should start a scroll.
## Summary of the Pull Request
Adjust the y-coordinate of the mouse coordinates we send based on how much the viewport has been scrolled
## Validation Steps Performed
Validated: cannot repro the issue in #10190Closes#10190
## Summary of the Pull Request
This forces the `TermControl` to only use `ControlCore` and `ControlInteractivity` via their WinRT projections. We want this, because WinRT projections can be used across process boundaries. In the future, `ControlCore` and `ControlInteractivity` are going to be living in a different process entirely from `TermControl`. By enforcing this boundary now, we can make sure that they will work seamlessly in the future.
## References
* Tear-out: #1256
* Megathread: #5000
* Project: https://github.com/microsoft/terminal/projects/5
## PR Checklist
* [x] Closes https://github.com/microsoft/terminal/projects/5#card-50760270
* [x] I work here
* [x] Tests added/passed
* [n/a] Requires documentation to be updated
## Detailed Description of the Pull Request / Additional comments
Most all this was just converting pure c++ types to winrt types when possible. I've added a couple helper projections with `til` converters, which made most of this really easy.
The "`MouseButtonState` needs to be composed of `Int32`s instead of `bool`s" is MENTAL. I have no idea why this is, but when I had the control OOP in the sample, that would crash when trying to de-marshal the bools. BODGY.
The biggest changes are in the way the UIA stuff is hooked up. The UiaEngine needs to be attached directly to the `Renderer`, and it can't be easily projected, so it needs to live next to the `ControlCore`. But the `TermControlAutomationPeer` needed the `UiaEngine` to help implement some interfaces.
Now, there's a new layer we've introduced. `InteractivityAutomationPeer` does the `ITextProvider`, `IControlAccessibilityInfo` and the `IUiaEventDispatcher` thing. `TermControlAutomationPeer` now has a
`InteractivityAutomationPeer` stashed inside itself, so that it can ask the interactivity layer to do the real work. We still need the `TermControlAutomationPeer` though, to be able to attach to the real UI tree.
## Validation Steps Performed
The terminal behaves basically the same as before.
Most importantly, I whipped out Accessibility Insights, and the Terminal looks the same as before.
## Summary of the Pull Request
This PR encompasses the first three bugs we found post-#9820.
### A: Mousedown, select, SCROLL does a weird thing with endpoints that doesn't happen in stable
We were using the terminal position to set the selection anchor, when we should have used the pixel position.
This is fixed in 4f4df01.
### B: Trackpad scrolling down with small increments seems buggy
This one's the most complicated. The touchpad sends very many small scroll deltas, less than one row at a time. The control scrollbar can store a `double`, so small deltas can accumulate. Originally, these would accumulate in the scrollbar, and we'd only read that out as an `int` in the scrollbar updater, which is throttled.
In the interactivity split, there's no place for us to store that double. We immediately narrow to an `int` for `ControlInteractivity::_updateScrollbar`.
So this introduces a double inside `ControlInteractivity` as a fake scrollbar, with which to accumulate to.
This is fixed in 33d29fa...0fefc5b
### C: Looks like there's a selection issue when you click and drag too quickly.
The diff for this one is:
<table>
<tr><td>1.8</td><td>main</td></tr>
<tr>
<td>
```c++
if (_singleClickTouchdownPos)
{
// Figure out if the user's moved a quarter of a cell's smaller axis away from the clickdown point
auto& touchdownPoint{ *_singleClickTouchdownPos };
auto distance{ std::sqrtf(std::powf(cursorPosition.X - touchdownPoint.X, 2) + std::powf(cursorPosition.Y - touchdownPoint.Y, 2)) };
const til::size fontSize{ _actualFont.GetSize() };
const auto fontSizeInDips = fontSize.scale(til::math::rounding, 1.0f / _renderEngine->GetScaling());
if (distance >= (std::min(fontSizeInDips.width(), fontSizeInDips.height()) / 4.f))
{
_terminal->SetSelectionAnchor(_GetTerminalPosition(touchdownPoint));
// stop tracking the touchdown point
_singleClickTouchdownPos = std::nullopt;
}
}
```
</td>
<td>
```c++
if (_singleClickTouchdownPos)
{
// Figure out if the user's moved a quarter of a cell's smaller axis away from the clickdown point
auto& touchdownPoint{ *_singleClickTouchdownPos };
float dx = ::base::saturated_cast<float>(pixelPosition.x() - touchdownPoint.x());
float dy = ::base::saturated_cast<float>(pixelPosition.y() - touchdownPoint.y());
auto distance{ std::sqrtf(std::powf(dx, 2) +
std::powf(dy, 2)) };
const auto fontSizeInDips{ _core->FontSizeInDips() };
if (distance >= (std::min(fontSizeInDips.width(), fontSizeInDips.height()) / 4.f))
{
_core->SetSelectionAnchor(terminalPosition);
// stop tracking the touchdown point
_singleClickTouchdownPos = std::nullopt;
}
}
```
</td>
</tr>
</table>
```c++
_terminal->SetSelectionAnchor(_GetTerminalPosition(touchdownPoint));
```
vs
```c++
_core->SetSelectionAnchor(terminalPosition);
```
We're now using the location of the drag event as the selection anchor, instead of the location that the user initially clicked. Oops.
## PR Checklist
* [x] Checks three boxes, though I'll be shocked if they're the last.
* [x] I work here
* [x] Tests added/passed 🎉🎉🎉
* [n/a] Requires documentation to be updated
## Detailed Description of the Pull Request / Additional comments
All three have tests, 🙌🙌🙌🙌
## Validation Steps Performed
Manual, and automated via tests
## Summary of the Pull Request
Brace yourselves, it's finally here. This PR does the dirty work of splitting the monolithic `TermControl` into three components. These components are:
* `ControlCore`: This encapsulates the `Terminal` instance, the `DxEngine` and `Renderer`, and the `Connection`. This is intended to everything that someone might need to stand up a terminal instance in a control, but without any regard for how the UX works.
* `ControlInteractivity`: This is a wrapper for the `ControlCore`, which holds the logic for things like double-click, right click copy/paste, selection, etc. This is intended to be a UI framework-independent abstraction. The methods this layer exposes can be called the same from both the WinUI TermControl and the WPF control.
* `TermControl`: This is the UWP control. It's got a Core and Interactivity inside it, which it uses for the actual logic of the terminal itself. TermControl's main responsibility is now
By splitting into smaller pieces, it will enable us to
* write unit tests for the `Core` and `Interactivity` bits, which we desparately need
* Combine `ControlCore` and `ControlInteractivity` in an out-of-proc core process in the future, to enable tab tearout.
However, we're not doing that work quite yet. There's still lots of work to be done to enable that, thought this is likely the biggest portion.
Ideally, this would just be methods moved wholesale from one file to another. Unfortunately, there are a bunch of cases where that didn't work as well as expected. Especially when trying to better enforce the boundary between the classes.
We've got a couple tests here that I've added. These are partially examples, and partially things I ran into while implementing this. A bunch of things from #7001 can go in now that we have this.
This PR is gonna be a huge pain to review - 38 files with 3,730 additions and 1,661 deletions is nothing to scoff at. It will also conflict 100% with anything that's targeting `TermControl`. I'm hoping we can review this over the course of the next week and just be done with it, and leave plenty of runway for 1.9 bugs in post.
## References
* In pursuit of #1256
* Proc Model: #5000
* https://github.com/microsoft/terminal/projects/5
## PR Checklist
* [x] Closes#6842
* [x] Closes https://github.com/microsoft/terminal/projects/5#card-50760249
* [x] Closes https://github.com/microsoft/terminal/projects/5#card-50760258
* [x] I work here
* [x] Tests added/passed
* [n/a] Requires documentation to be updated
## Detailed Description of the Pull Request / Additional comments
* I don't love the names `ControlCore` and `ControlInteractivity`. Open to other names.
* I added a `ICoreState` interface for "properties that come from the `ControlCore`, but consumers of the `TermControl` need to know". In the future, these will all need to be handled specially, because they might involve an RPC call to retrieve the info from the core (or cache it) in the window process.
* I've added more `EventArgs` to make more events proper `TypedEvent`s.
* I've changed how the TerminalApp layer requests updated TaskbarProgress state. It doesn't need to pump TermControl to raise a new event anymore.
* ~~Something that snuck into this branch in the very long history is the switch to `DCompositionCreateSurfaceHandle` for the `DxEngine`. @miniksa wrote this originally in 30b8335, I'm just finally committing it here. We'll need that in the future for the out-of-proc stuff.~~
* I reverted this in c113b65d9. We can revert _that_ commit when we want to come back to it.
* I've changed the acrylic handler a decent amount. But added tests!
* All the `ThrottledFunc` things are left in `TermControl`. Some might be able to move down into core/interactivity, but once we figure out how to use a different kind of Dispatcher (because a UI thread won't necessarily exist for those components).
* I've undoubtably messed up the merging of the locking around the appearance config stuff recently
## Validation Steps Performed
I've got a rolling list in https://github.com/microsoft/terminal/issues/6842#issuecomment-810990460 that I'm updating as I go.
