* #4339: Kernel change event occurs after model load
* #4347: Code cleanup - Notebooks Save
* Remove save method from sqlops
* Adding save method to api's
* Adding save method to ext host
* Misc change
* Start single client session based on the default kernel or saved kernel in NB.
* Added kernel displayName to standardKernel.
Modified name to allign wtih Juptyer Kernel.name.
So we can show the displayName during startup and use the name to start the session.
* Change session.OnSessionReady event in KernelDropDown
* Added model.KernelChnaged for switching kernel in the same provider
* Fixed session.Ready sequence
* Fixed merge issues
* Solve merged issue
* Fixed wrong kernel name in saved NB
* Added new event in Model to notify kernel change.
Toolbar depends on ModelReady to load
* Change attachTo to wait for ModelReady like KenelDropDown
* sanitizeSavedKernelInfo to fix invalid kernel and display_name. For example: PySpark1111 and PySpark 1111
* Added _contextsChangingEmitter to change loadContext msg when changing kernel
* Resolve PR comments
The Attach To was showing only localhost for SQL, since we overrode the standard kernels from SQL with the ones from Jupyter.
Fix is to save all standard kernels.
Also, added dispose handling for some events I found during debugging and removed unused imports
* working on formatting
* fixed basic lint errors; starting moving things to their appropriate location
* formatting
* update tslint to match the version of vscode we have
* remove unused code
* work in progress fixing layering
* formatting
* moved connection management service to platform
* formatting
* add missing file
* moving more servies
* formatting
* moving more services
* formatting
* wip
* moving more services
* formatting
* move css file
* add missing svgs
* moved the rest of services
* formatting
* changing around some references
* formatting
* revert tslint
* revert some changes that brake things
* formatting
* fix tests
* fix testzx
* fix tests
* fix tests
* fix compile issue
Fixes#3931
- Align run button correctly so it's centered in new cell
- Refactor to support multi-state button.
- Hidden state is set to show execution count
- Stopped state shows run button
- Running state shows stop button
- Error state (will) show error button. This isn't fully handled right now
- Add execution count to model and to SqlKernel, verify serialization, loading, update matches other notebook viewers
**Notes on implementation**:
I think this is a decent solution for a) showing execution count as text, and b) perfectly centering the run button.
The below solution shows count correctly up to 999 runs (that’s clicking 999 times in a single session), the icon lines up juuust about right with [ ] but for other numbers it is pretty close but probably not exactly right. I wish I could solve this to work better but trying to change text float to center etc. really isn’t working.
**Screenshots**:

With running cell:

- Added `runCell` API. Updated runCell button to listen to events on the model so it'll reflect run cell when called from other sources
- Plumbed through kernelspec info to the extension side so when changed, it's updated
- Fixed bug in ConnectionProfile where it didn't copy from options but instead overrode with empty wrapper functions
Here's the rough test code (it's in the sql-vnext extension and will be out in a separate PR)
```ts
it('Should connect to local notebook server with result 2', async function() {
this.timeout(60000);
let pythonNotebook = Object.assign({}, expectedNotebookContent, { metadata: { kernelspec: { name: "python3", display_name: "Python 3" }}});
let uri = writeNotebookToFile(pythonNotebook);
await ensureJupyterInstalled();
let notebook = await sqlops.nb.showNotebookDocument(uri);
should(notebook.document.cells).have.length(1);
let ran = await notebook.runCell(notebook.document.cells[0]);
should(ran).be.true('Notebook runCell failed');
let cellOutputs = notebook.document.cells[0].contents.outputs;
should(cellOutputs).have.length(1);
let result = (<sqlops.nb.IExecuteResult>cellOutputs[0]).data['text/plain'];
should(result).equal('2');
try {
// TODO support closing the editor. Right now this prompts and there's no override for this. Need to fix in core
// Close the editor using the recommended vscode API
//await vscode.commands.executeCommand('workbench.action.closeActiveEditor');
}
catch (e) {}
});
it('Should connect to remote spark server with result 2', async function() {
this.timeout(240000);
let uri = writeNotebookToFile(expectedNotebookContent);
await ensureJupyterInstalled();
// Given a connection to a server exists
let connectionId = await connectToSparkIntegrationServer();
// When I open a Spark notebook and run the cell
let notebook = await sqlops.nb.showNotebookDocument(uri, {
connectionId: connectionId
});
should(notebook.document.cells).have.length(1);
let ran = await notebook.runCell(notebook.document.cells[0]);
should(ran).be.true('Notebook runCell failed');
// Then I expect to get the output result of 1+1, executed remotely against the Spark endpoint
let cellOutputs = notebook.document.cells[0].contents.outputs;
should(cellOutputs).have.length(4);
let sparkResult = (<sqlops.nb.IStreamResult>cellOutputs[3]).text;
should(sparkResult).equal('2');
try {
// TODO support closing the editor. Right now this prompts and there's no override for this. Need to fix in core
// Close the editor using the recommended vscode API
//await vscode.commands.executeCommand('workbench.action.closeActiveEditor');
}
catch (e) {}
});
});
```
* Scenarios work besides loading saved kernel
* Fix compilation issue
* Save and load functional
* Fix loading kernesl issue when sql kernel is not enabled
* Fix language mapping to not be hardcoded any longer
* Remove unnecessary comment
* PR Comments vol. 1
* Code cleanup, use ConnectionProfile instead of IConnectionProfile when accessing serverName
* PR changes vol. 2
* One final comment for PR
* Fix linting issue
* working on formatting
* fixed basic lint errors; starting moving things to their appropriate location
* formatting
* update tslint to match the version of vscode we have
* remove unused code
* work in progress fixing layering
* formatting
* moved connection management service to platform
* formatting
* add missing file
* moving more servies
* formatting
* moving more services
* formatting
* wip
* moving more services
* formatting
* revert back tslint rules
* move css file
* add missing svgs
* Notebook saves are broken #3432
* Misc change
* Save notebook uri to This
* Untitled notebook save including review comments #3432
* Cleanup
* Misc changes
* first attach to working
* Transfer changes from sqlopsstudioextensions PR 448
* Transfer changes from sqlopsstudioextensions PR 447
* Transfer changes from sqlopsstudioextensions PR 456
* Transfer changes from sqlopsstudioextensions PR 465
* Transfer changes from sqlopsstudioextensions PR 463
* Transfer changes from sqlopsstudioextensions PR 482
* Transfer changes from sqlopsstudioextensions PR 485
* Session and Kernel implementation except executeRequest
* Attach to port compiling
* Further tweaks to attach to dropdown, re-enable opening connection dialog
* Revert "Merge remote-tracking branch 'origin/Notebook/sessionExtension' into feature/workingAttachTo"
This reverts commit 94703db87c85416c4ae36762afc1094d6e71166a, reversing
changes made to e4dc25331036d259e9c762cfe8741f957bb5c590.
* Fix code formatting
* Fix for new Add new connection issue
Full plumb through of Session support. Also fixed some test issues
- Load session and get necessary information in kernels list
- Run Cell button now works as expected
- Added a ToggleAction base class which can be used for anything that switches icons. I'd still prefer to have this be dynamic and as clean as the extension classes
- Fixed account test unhandled promise rejections (caused by incorrect / invalid tests) that made it hard to see all the test run output.
* Initial toolbar work
- This is in-progress and needs additional fixes
* Resolve PR comments
* Added empty kernel and hook up with Kernel dropdown
* Resolve PR comments