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terminal/src/cascadia/TerminalSettingsModel
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Mike Griese 6268a4779c
Implement and action for manually clearing the Terminal (and conpty) buffer (#10906) 
## Summary of the Pull Request

![clear-buffer-000](https://user-images.githubusercontent.com/18356694/127570078-90c6089e-0430-4dfc-bcd4-a0cde20c9167.gif)

This adds a new action, `clearBuffer`. It accepts 3 values for the `clear` type:
* `"clear": "screen"`: Clear the terminal viewport content. Leaves the scrollback untouched. Moves the cursor row to the top of the viewport (unmodified).
* `"clear": "scrollback"`: Clear the scrollback. Leaves the viewport untouched.
* `"clear": "all"`: (**default**) Clear the scrollback and the visible viewport. Moves the cursor row to the top of the viewport (unmodified).

"Clear Buffer" has also been added to `defaults.json`.

## References
* From microsoft/vscode#75141 originally

## PR Checklist
* [x] Closes #1193
* [x] Closes #1882
* [x] I work here
* [x] Tests added/passed
* [ ] Requires documentation to be updated

## Detailed Description of the Pull Request / Additional comments

This is a bit tricky, because we need to plumb it all the way through conpty to clear the buffer. If we don't, then conpty will immediately just redraw the screen. So this sends a signal to the attached conpty, and then waits for conpty to draw the updated, cleared, screen back to us.

## Validation Steps Performed
* works for each of the three clear types as expected
* tests pass.
* works even with `ping -t 8.8.8.8` as you'd hope.
2021-09-02 14:59:42 +00:00
..
dll Revert "Upgrade to Microsoft.UI.Xaml 2.6.2 (or equivalent) (#10996)" (#11031) 2021-08-24 17:46:12 -05:00
Resources/en-US Implement and action for manually clearing the Terminal (and conpty) buffer (#10906) 2021-09-02 14:59:42 +00:00
ActionAndArgs.cpp Implement and action for manually clearing the Terminal (and conpty) buffer (#10906) 2021-09-02 14:59:42 +00:00
ActionAndArgs.h Add action to run multiple actions. (#11045) 2021-08-31 19:35:51 +00:00
ActionArgs.cpp Implement and action for manually clearing the Terminal (and conpty) buffer (#10906) 2021-09-02 14:59:42 +00:00
ActionArgs.h Implement and action for manually clearing the Terminal (and conpty) buffer (#10906) 2021-09-02 14:59:42 +00:00
ActionArgs.idl Implement and action for manually clearing the Terminal (and conpty) buffer (#10906) 2021-09-02 14:59:42 +00:00
ActionMap.cpp Make ActionMap compatible with ScanCode-only KeyChords (#10945) 2021-08-20 00:21:33 +00:00
ActionMap.h Make ActionMap compatible with ScanCode-only KeyChords (#10945) 2021-08-20 00:21:33 +00:00
ActionMap.idl Adding/fixing Alt+Space handling (#10799) 2021-08-10 19:53:07 +00:00
ActionMapSerialization.cpp Use WinRT VirtualKeyModifiers instead of a custom enum (#10603) 2021-07-12 21:24:26 +00:00
AllShortcutActions.h Implement and action for manually clearing the Terminal (and conpty) buffer (#10906) 2021-09-02 14:59:42 +00:00
AppearanceConfig.cpp Add an ENUM setting for disabling rendering "intense" text as bold (#10759) 2021-08-16 13:45:56 +00:00
AppearanceConfig.h Render "intense" text as bright by default (#10958) 2021-08-16 19:59:37 +00:00
AppearanceConfig.idl Add support for a profile to specify an "unfocused" appearance (#8392) 2021-04-08 22:46:16 +00:00
ApplicationState.cpp Add action to run multiple actions. (#11045) 2021-08-31 19:35:51 +00:00
ApplicationState.h Teach CommandPalette to persist recent command lines (#11030) 2021-08-26 19:04:35 +00:00
ApplicationState.idl Teach CommandPalette to persist recent command lines (#11030) 2021-08-26 19:04:35 +00:00
AzureCloudShellGenerator.cpp Add support for a profile to specify an "unfocused" appearance (#8392) 2021-04-08 22:46:16 +00:00
AzureCloudShellGenerator.h Introduce TerminalSettingsModel project (#7667) 2020-10-06 09:56:59 -07:00
CascadiaSettings.cpp Use the "base" profile for incoming handoff and new commands (#11022) 2021-08-25 22:41:42 +00:00
CascadiaSettings.h Allow generated profiles to be deleted (#11007) 2021-08-23 22:00:08 +00:00
CascadiaSettings.idl Rely more on profile objects and less on GUIDs (#10982) 2021-08-23 12:11:53 -05:00
CascadiaSettingsSerialization.cpp Allow generated profiles to be deleted (#11007) 2021-08-23 22:00:08 +00:00
ColorScheme.cpp Introduce MS.Term.Core.Color to replace W.U.Color for Core/Control/TSM (#9658) 2021-03-30 20:15:49 +00:00
ColorScheme.h Introduce MS.Term.Core.Color to replace W.U.Color for Core/Control/TSM (#9658) 2021-03-30 20:15:49 +00:00
ColorScheme.idl Introduce MS.Term.Core.Color to replace W.U.Color for Core/Control/TSM (#9658) 2021-03-30 20:15:49 +00:00
Command.cpp Bugfix: serialize iterable commands (#10373) 2021-06-10 18:25:27 +00:00
Command.h Introduce serialization for actions (#9926) 2021-05-20 18:44:04 +00:00
Command.idl Introduce ActionMap to Terminal Settings Model (#9621) 2021-05-04 21:50:13 -07:00
DefaultProfileUtils.cpp Introduce setting override tracking and update SettingContainer (#9079) 2021-02-19 23:50:52 +00:00
DefaultProfileUtils.h Make Global and Profile settings inheritable (#7923) 2020-10-27 17:35:09 +00:00
defaults-universal.json Introduce vk() and sc() key chord specifiers (#10666) 2021-07-20 22:34:51 +00:00
defaults.json Implement and action for manually clearing the Terminal (and conpty) buffer (#10906) 2021-09-02 14:59:42 +00:00
DefaultTerminal.cpp Prevent crashes in Settings UI launch on OS versions before package management extensions (#10238) 2021-05-27 17:53:00 +00:00
DefaultTerminal.h Prevent crashes in Settings UI launch on OS versions before package management extensions (#10238) 2021-05-27 17:53:00 +00:00
DefaultTerminal.idl Implement UI for choosing default terminal inside Settings page (#9907) 2021-04-28 10:43:30 +00:00
EnumMappings.cpp Add an ENUM setting for disabling rendering "intense" text as bold (#10759) 2021-08-16 13:45:56 +00:00
EnumMappings.h Add an ENUM setting for disabling rendering "intense" text as bold (#10759) 2021-08-16 13:45:56 +00:00
EnumMappings.idl Add an ENUM setting for disabling rendering "intense" text as bold (#10759) 2021-08-16 13:45:56 +00:00
FileUtils.cpp Fix WriteUTF8FileAtomic to preserve symlinks (#10908) 2021-08-12 16:47:16 +00:00
FileUtils.h Introduce a basic ApplicationState class (#10513) 2021-06-30 02:25:44 +02:00
FontConfig.cpp Allow users to set font features and font axes (#10525) 2021-07-22 23:15:44 +00:00
FontConfig.h Allow users to set font features and font axes (#10525) 2021-07-22 23:15:44 +00:00
FontConfig.idl Allow users to set font features and font axes (#10525) 2021-07-22 23:15:44 +00:00
GlobalAppSettings.cpp Add titlebar acrylic (#10864) 2021-08-23 16:40:25 +00:00
GlobalAppSettings.h Add titlebar acrylic (#10864) 2021-08-23 16:40:25 +00:00
GlobalAppSettings.idl Add titlebar acrylic (#10864) 2021-08-23 16:40:25 +00:00
HashUtils.h Introduce ActionMap to Terminal Settings Model (#9621) 2021-05-04 21:50:13 -07:00
IAppearanceConfig.idl Add an ENUM setting for disabling rendering "intense" text as bold (#10759) 2021-08-16 13:45:56 +00:00
IconPathConverter.cpp Revert "Add the profile, page icons to the page headers (#10046)" (#10124) 2021-05-18 17:35:50 -05:00
IconPathConverter.h Move IconSourceConverter from TerminalApp to TSM 2020-12-11 13:17:22 -08:00
IconPathConverter.idl Move IconSourceConverter from TerminalApp to TSM 2020-12-11 13:17:22 -08:00
IDynamicProfileGenerator.h Introduce TerminalSettingsModel project (#7667) 2020-10-06 09:56:59 -07:00
IInheritable.h Move TerminalSettings from TermApp to TerminalSettingsModel (#9318) 2021-03-15 23:15:25 +00:00
IInheritable.idl.h Introduce setting override tracking and update SettingContainer (#9079) 2021-02-19 23:50:52 +00:00
init.cpp Hook up the WIL fallback error tracer in Terminal (#7864) 2020-10-09 22:20:12 +00:00
JsonUtils.h Add action to run multiple actions. (#11045) 2021-08-31 19:35:51 +00:00
KeyChordSerialization.cpp Fix: Multimedia Key Hotkey Support (#10801) 2021-07-27 17:11:51 +00:00
KeyChordSerialization.h Introduce ActionMap to Terminal Settings Model (#9621) 2021-05-04 21:50:13 -07:00
KeyChordSerialization.idl Rename Microsoft.Terminal.TerminalControl to .Control; Split into dll & lib (#9472) 2021-03-17 20:47:24 +00:00
LegacyProfileGeneratorNamespaces.h From orbit, nuke the Telnet connection and all supporting infra. (#7840) 2020-10-09 18:59:58 +00:00
Microsoft.Terminal.Settings.ModelLib.vcxproj Revert "Upgrade to Microsoft.UI.Xaml 2.6.2 (or equivalent) (#10996)" (#11031) 2021-08-24 17:46:12 -05:00
Microsoft.Terminal.Settings.ModelLib.vcxproj.filters Enable /Zc:preprocessor (#10593) 2021-07-13 23:00:11 +00:00
packages.config Update C++/WinRT to 2.0.210309.3 (#9437) 2021-03-10 16:04:59 -06:00
pch.cpp Introduce TerminalSettingsModel project (#7667) 2020-10-06 09:56:59 -07:00
pch.h Fix crash when unpackaged due to PrimaryLanguageOverride (#10434) 2021-06-16 21:08:14 +00:00
PowershellCoreProfileGenerator.cpp Add support for a profile to specify an "unfocused" appearance (#8392) 2021-04-08 22:46:16 +00:00
PowershellCoreProfileGenerator.h Introduce TerminalSettingsModel project (#7667) 2020-10-06 09:56:59 -07:00
Profile.cpp Allow generated profiles to be deleted (#11007) 2021-08-23 22:00:08 +00:00
Profile.h Allow generated profiles to be deleted (#11007) 2021-08-23 22:00:08 +00:00
Profile.idl Allow generated profiles to be deleted (#11007) 2021-08-23 22:00:08 +00:00
SettingsTypes.h Introduce TerminalSettingsModel project (#7667) 2020-10-06 09:56:59 -07:00
TerminalSettings.cpp Move commandline->title promotion into TerminalSettings (#11029) 2021-08-24 23:31:27 +00:00
TerminalSettings.h Rely more on profile objects and less on GUIDs (#10982) 2021-08-23 12:11:53 -05:00
TerminalSettings.idl Rely more on profile objects and less on GUIDs (#10982) 2021-08-23 12:11:53 -05:00
TerminalSettingsSerializationHelpers.h Implement and action for manually clearing the Terminal (and conpty) buffer (#10906) 2021-09-02 14:59:42 +00:00
TerminalWarnings.h Introduce TerminalSettingsModel project (#7667) 2020-10-06 09:56:59 -07:00
TerminalWarnings.idl Invalidate nested command with no valid subcommands (#9495) 2021-03-15 16:34:06 +00:00
userDefaults.json Introduce TerminalSettingsModel project (#7667) 2020-10-06 09:56:59 -07:00
WslDistroGenerator.cpp Lookup WSL distros in the registry (#10967) 2021-08-24 13:10:36 +00:00
WslDistroGenerator.h Introduce TerminalSettingsModel project (#7667) 2020-10-06 09:56:59 -07:00