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## Summary of the Pull Request
Another tiny performance fix.
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## Detailed Description of the Pull Request / Additional comments
Correct me if I'm wrong, It doesn't really make sense to update scroll status faster than frame rate limit.
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## Validation Steps Performed
<hr>
* Throttle scroll position update
* Review
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## Summary of the Pull Request
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## References
#1091#1094#2390#3314
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## PR Checklist
* [x] Closes#1091
* [x] CLA signed. If not, go over [here](https://cla.opensource.microsoft.com/microsoft/Terminal) and sign the CLA
* [ ] Tests added/passed
* [ ] Requires documentation to be updated
* [x] 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
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## Detailed Description of the Pull Request / Additional comments
Combination of the PRs #1094, #2390, and #3314, especially as discussed in #3314.
In short, this changes line endings from Windows-space \r\n to the more universal \r.
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## Validation Steps Performed
Copied and pasted text into the terminal without the patch, line endings were doubled.
With the patch, line endings weren't doubled.
--------------------
* Replacing \r\n line endings with \r line endings
* Fixing Formatting
* We had to move to the final API:
* Items -> TabItems
* Items.VectorChanged -> TabItemsChanged
* TabClose -> TabCloseRequested
* TabViewItem.Icon -> TabViewItem.IconSource
* TabRowControl has been converted to a ContentPresenter, which
simplifies its logic a little bit.
* TerminalPage now differentiates MUX and WUX a little better
* Because of the change from Icon to IconSource in TabViewItem,
Utils::GetColoredIcon needed to be augmented to support MUX IconSources.
It was still necessary to use for WUX, so it's been templatized.
* I moved us from WUX SplitButton to MUX SplitButton and brought the
style in line with the one typically provided by TabView.
* Some of our local controls have had their backgrounds removed so
they're more amenable to being placed on other surfaces.
* I'm suppressing the TabView's padding.
* I removed a number of apparently dead methods from App.
* I've simplified the dragbar's sizing logic and eventing.
* The winmd harvester needed to be taught to not try to copy winmds for
framework packages.
* We now only initialize the terminal once we know the size
Closes#1896.
Closes#444.
Closes#857.
Closes#771.
Closes#760.
* Move Clipboard::GenHTML to TextBuffer (add params)
Refactor RetrieveSelectedTextFromBuffer
Modify CopyToClipboardEventArgs to include HTML data
* minor code format fix
* PR Changes
NOTE: refactoring text buffer code is a separate task. New issue to be created.
* Refactor TextBuffer::GenHTML (#2038)
Fixes#1846.
* nit change
* x86 build fix
* nit changes
This commit also transitions our keybinding events and event handlers to a
TypedEventHandler model with an "event args" class, as specified in the
keybinding arguments specification (#1349). In short, every event can be marked
Handled independently, and a Handled event will stop bubbling out to the
terminal. An unhandled event will be passed off to the terminal as a standard
keypress.
This unifies our keybinding event model and provides a convenient place for
binding arguments to live.
Fixes#2285.
Related to #1349, #1142.
This moves the detection of AltGr keypresses in front of the shortcut
handling. This allows one to have Ctrl+Alt shortcuts, while
simultaneously being able to use the AltGr key for special characters.
Builds on the work of #1691 and #1915
Let's start with the easy change:
- `TermControl`'s `controlRoot` was removed. `TermControl` is a `UserControl`
now.
Ok. Now we've got a story to tell here....
### TermControlAP - the Automation Peer
Here's an in-depth guide on custom automation peers:
https://docs.microsoft.com/en-us/windows/uwp/design/accessibility/custom-automation-peers
We have a custom XAML element (TermControl). So XAML can't really hold our
hands and determine an accessible behavior for us. So this automation peer is
responsible for enabling that interaction.
We made it a FrameworkElementAutomationPeer to get as much accessibility as
possible from it just being a XAML element (i.e.: where are we on the screen?
what are my dimensions?). This is recommended. Any functions with "Core" at the
end, are overwritten here to tweak this automation peer into what we really
need.
But what kind of interactions can a user expect from this XAML element?
Introducing ControlPatterns! There's a ton of interfaces that just define "what
can I do". Thankfully, we already know that we're supposed to be
`ScreenInfoUiaProvider` and that was an `ITextProvider`, so let's just make the
TermControlAP an `ITextProvider` too.
So now we have a way to define what accessible actions can be performed on us,
but what should those actions do? Well let's just use the automation providers
from ConHost that are now in a shared space! (Note: this is a great place to
stop and get some coffee. We're about to hop into the .cpp file in the next
section)
### Wrapping our shared Automation Providers
Unfortunately, we can't just use the automation providers from ConHost. Or, at
least not just hook them up as easily as we wish. ConHost's UIA Providers were
written using UIAutomationCore and ITextRangeProiuder. XAML's interfaces
ITextProvider and ITextRangeProvider are lined up to be exactly the same.
So we need to wrap our ConHost UIA Providers (UIAutomationCore) with the XAML
ones. We had two providers, so that means we have two wrappers.
#### TermControlAP (XAML) <----> ScreenInfoUiaProvider (UIAutomationCore)
Each of the functions in the pragma region `ITextProvider` for
TermControlAP.cpp is just wrapping what we do in `ScreenInfoUiaProvider`, and
returning an acceptable version of it.
Most of `ScreenInfoUiaProvider`'s functions return `UiaTextRange`s. So we need
to wrap that too. That's this next section...
#### XamlUiaTextRange (XAML) <----> UiaTextRange (UIAutomationCore)
Same idea. We're wrapping everything that we could do with `UiaTextRange` and
putting it inside of `XamlUiaTextRange`.
### Additional changes to `UiaTextRange` and `ScreenInfoUiaProvider`
If you don't know what I just said, please read this background:
- #1691: how accessibility works and the general responsibility of these two
classes
- #1915: how we pulled these Accessibility Providers into a shared area
TL;DR: `ScreenInfoUiaProvider` lets you interact with the displayed text.
`UiaTextRange` is specific ranges of text in the display and navigate the text.
Thankfully, we didn't do many changes here. I feel like some of it is hacked
together but now that we have a somewhat working system, making changes
shouldn't be too hard...I hope.
#### UiaTextRange
We don't have access to the window handle. We really only need it to draw the
bounding rects using WinUser's `ScreenToClient()` and `ClientToScreen()`. I
need to figure out how to get around this.
In the meantime, I made the window handle optional. And if we don't have
one....well, we need to figure that out. But other than that, we have a
`UiaTextRange`.
#### ScreenInfoUiaProvider
At some point, we need to hook up this automation provider to the
WindowUiaProvider. This should help with navigation of the UIA Tree and make
everything just look waaaay better. For now, let's just do the same approach
and make the pUiaParent optional.
This one's the one I'm not that proud of, but it works. We need the parent to
get a bounding rect of the terminal. While we figure out how to attach the
WindowUiaProvider, we should at the very least be able to get a bunch of info
from our xaml automation peer. So, I've added a _getBoundingRect optional
function. This is what's called when we don't have a WindowUiaProvider as our
parent.
## Validation Steps Performed
I've been using inspect.exe to see the UIA tree.
I was able to interact with the terminal mostly fine. A few known issues below.
Unfortunately, I tried running Narrator on this and it didn't seem to like it
(by that I mean WT crashed). Then again, I don't really know how to use
narrator other than "click on object" --> "listen voice". I feel like there's a
way to get the other interactions with narrator, but I'll be looking into more
of that soon. I bet if I fix the two issues below, Narrator will be happy.
## Miscellaneous Known Issues
- `GetSelection()` and `GetVisibleRanges()` crashes. I need to debug through
these. I want to include them in this PR.
Fixes#1353.
* Fixed a minor build warning
* Removed an unimplemented method declaration
* Added Microsoft::Terminal::Core::ControlKeyStates
// This class will act as a safe wrapper for the ControlKeyState enum,
// found in the NT console subsystem (<um/wincon.h>).
Adds the ability to resize panes with the keyboard.
This is accomplished by making the Column/RowDefinitions for a Pane use `GridLengthHelper::FromPixels` to set their size. We store a pair of floats that represents the relative amount that each pane takes out of the parent pane. When the window is resized, we use that percentage to figure out the new size of each child in pixels, and manually size each column.
Then, when the user presses the keybindings for resizePane{Left/Right/Up/Down}, we'll adjust those percentages, and resize the rows/cols as appropriate.
Currently, each pane adjusts the width/height by 5% of the total size at a time. I am not in love with this, but it works for now. I think when we get support for keybindings with arbitrary arg blobs, then we could do either a percent movement, or a number of characters at a time. The number of characters one would be trickier, because we'd have to get the focused control, and get the number of pixels per character, as adjacent panes might not have the same font sizes.
* Connects clipboard functionality to their keybindings.
* Cleaning up comments and whitespace.
* Added "copyTextWithoutNewlines" keybinding.
* Fixing tabs in idl file
* Fixing merge conflicts
* Adding default keybindings for copy and paste to ctrl-shift-c and ctrl-shift-v, respectively.
* Complying with refactoring
* Fixing formatting issues
* Captured pointer for SwapChainPanel and ScrollBar separately
Renamed MouseClickHandler and MouseMovedHandler to more generic names (since they handle touch events too)
Fixes#950.
* Properly manage teardown state in TermControl
This commit introduces a few automatic event revokers and implements
staged Close for TermControl's constituent components.
* Only read the focused control title if there is one
Fixes#1198Fixes#1188
* Start working on adding support for panes
See #1000 for the panes megathread on remaining work.
The functionality will be there, but the keybinding won't be there, so people have to
opt-in to it.
* Initial code check in for background images
* Cleaning up whitespace
* Whitespace cleanup
* Added/fixed comments
* Fixing tabs
* Reverting erroneous file add
* Removing custom enum for image stretching mode and using Windows::UI::Xaml::Media::Stretch instead.
* Removing now-superfluous static_cast when setting stretch mode.
* Updating code to use wstring_view (per #925)
* One last set of wstring -> wstring_view changes
* Split off brush-intialization function from TermControl::_BackgroundColorChanged and added code to prevent flicker on resetting acrylic or image backgrounds.
* Support OSC to set default background and foreground colors
* Update the Terminal theme when the background changes
* Fix whitespace per code-review
* Add Documentation Comments
Also fix a few outdated comments and whitespace
* Update Telemetry codes per code review
* Add Unit Tests for OSC ForegroundColor and BackgroundColor
* Add a couple additional test cases
* Minor doc and whitespace change per PR review
* Update comment help per code review
* Add another OSC 10 & 11 test case, improve output
* Comments and syntax cleanup per code reviews
* added another method to scroll with keyboard
* set lastscrolloffset to 0
* fixed unused variable
* renamed ViewPort to Viewport
* changed keyBoard to keyboard in the functions, and added expliantion for function
* Added focus tracking to TermControl to prevent clicks which refocus the terminal window from selecting text.
* Moved open brace to a new line per repo code style.
* Moved the TermControl's _MouseClickHandler's focus check into the Mouse specific block of code. This lets any touch and drag events scroll the terminal's contents.
Fixes#670.
* added keybindings
* untabfied the files
* fixed spacing issues and renamed termheight
* changed function names and other improvements
* made some auto variables const auto
* fixed tabs
* another try for the broken spacing
