vscode.previewHtml is deprecated. Need to be replaced with Webview API

[muojp]

VSCode warns us that vsccode-language-review uses deprecated preview API.

VSCode: 1.32.2

[muojp]

microsoft/vscode#62630

[muojp]

A memo after reading https://code.visualstudio.com/api/extension-guides/webview .

A quick review of current design:

1. Create a preview panel using vscode.commands.executeCommand('vscode.previewHtml', ...) when user needs a new panel, then VSCode core is responsible for lifecycle of the panel.
2. Bind preview panels with Re:VIEW documents using URIs
3. Utilize vscode.TextDocumentContentProvider to 1/ detect changes, 2/ fire convert function, 3/ update content shown in preview panels (content update is done internally by VSCode using URI handling)

What Webview API requires:

1. Create a preview panel using vscode.window.createWebviewPanel(...)
2. Programmer is responsible for everything

In short, we would need to adopt Webview like this way:

• Throw away TextDocumentContentProvider (review: URI scheme handler)
• Re-bind editor events (onOpen/onChange/onSave) with corresponding preview panels along with vscode.SymbolInformations

[atsushieno]

Wow, thanks for the note. I'll take a look hopefully tonight or in a few days.

[atsushieno]

okay, after a quick look, this is going to be annoying :p

[atsushieno]

Fixed. Thanks for the report!