sessions - tweaks to chat input to make it larger (#298416)

* sessions - tweaks to chat input to make it larger

* Update src/vs/sessions/browser/media/style.css

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: bpasero

src/vs/sessions/browser/media/style.css

@@ -52,5 +52,6 @@
 .agent-sessions-workbench .interactive-session .interactive-input-part {
 	margin: 0 8px !important;
 	display: inherit !important;
-	padding: 4px 0 8px 0px !important;
+	/* Align with changes view */
+	padding: 4px 0 6px 0 !important;
 }

src/vs/workbench/contrib/chat/browser/chat.ts

@@ -263,6 +263,7 @@ export interface IChatWidgetViewOptions {
 	enableWorkingSet?: 'explicit' | 'implicit';
 	supportsChangingModes?: boolean;
 	dndContainer?: HTMLElement;
+	inputEditorMinLines?: number;
 	defaultMode?: IChatMode;
 	/**
 	 * Optional delegate for the session target picker.

src/vs/workbench/contrib/chat/browser/widget/chatWidget.ts

@@ -1715,6 +1715,7 @@ export class ChatWidget extends Disposable implements IChatWidget {
 			renderWorkingSet: this.viewOptions.enableWorkingSet === 'explicit',
 			supportsChangingModes: this.viewOptions.supportsChangingModes,
 			dndContainer: this.viewOptions.dndContainer,
+			inputEditorMinLines: this.viewOptions.inputEditorMinLines,
 			widgetViewKindTag: this.getWidgetViewKindTag(),
 			defaultMode: this.viewOptions.defaultMode,
 			sessionTypePickerDelegate: this.viewOptions.sessionTypePickerDelegate,

src/vs/workbench/contrib/chat/browser/widget/input/chatInputPart.ts

@@ -154,6 +154,7 @@ export interface IChatInputPartOptions {
 	enableImplicitContext?: boolean;
 	supportsChangingModes?: boolean;
 	dndContainer?: HTMLElement;
+	inputEditorMinLines?: number;
 	widgetViewKindTag: string;
 	/**
 	 * Optional delegate for the session target picker.
@@ -272,6 +273,7 @@ export class ChatInputPart extends Disposable implements IHistoryNavigationWidge
 	private readonly _contextResourceLabels: ResourceLabels;
 
 	private readonly inputEditorMaxHeight: number;
+	private readonly inputEditorMinHeight: number | undefined;
 	private inputEditorHeight: number = 0;
 	private container!: HTMLElement;
 
@@ -560,6 +562,7 @@ export class ChatInputPart extends Disposable implements IHistoryNavigationWidge
 		this.dnd = this._register(this.instantiationService.createInstance(ChatDragAndDrop, () => this._widget, this._attachmentModel, styles));
 
 		this.inputEditorMaxHeight = this.options.renderStyle === 'compact' ? INPUT_EDITOR_MAX_HEIGHT / 3 : INPUT_EDITOR_MAX_HEIGHT;
+		this.inputEditorMinHeight = this.options.inputEditorMinLines ? this.options.inputEditorMinLines * 20 + (this.options.renderStyle === 'compact' ? 4 : 16) : undefined; // lineHeight is 20, padding is top+bottom
 
 		this.inputEditorHasText = ChatContextKeys.inputHasText.bindTo(contextKeyService);
 		this.chatCursorAtTop = ChatContextKeys.inputCursorAtTop.bindTo(contextKeyService);
@@ -3004,7 +3007,7 @@ export class ChatInputPart extends Disposable implements IHistoryNavigationWidge
 
 		const initialEditorScrollWidth = this._inputEditor.getScrollWidth();
 		const newEditorWidth = width - data.inputPartHorizontalPadding - data.editorBorder - data.inputPartHorizontalPaddingInside - data.toolbarsWidth - data.sideToolbarWidth;
-		const inputEditorHeight = Math.min(this._inputEditor.getContentHeight(), this.inputEditorMaxHeight);
+		const inputEditorHeight = this.inputEditorMinHeight ? Math.max(this.inputEditorMinHeight, Math.min(this._inputEditor.getContentHeight(), this.inputEditorMaxHeight)) : Math.min(this._inputEditor.getContentHeight(), this.inputEditorMaxHeight);
 		const newDimension = { width: newEditorWidth, height: inputEditorHeight };
 		if (!this.previousInputEditorDimension || (this.previousInputEditorDimension.width !== newDimension.width || this.previousInputEditorDimension.height !== newDimension.height)) {
 			// This layout call has side-effects that are hard to understand. eg if we are calling this inside a onDidChangeContent handler, this can trigger the next onDidChangeContent handler

src/vs/workbench/contrib/chat/browser/widgetHosts/viewPane/chatViewPane.ts

@@ -539,6 +539,7 @@ export class ChatViewPane extends ViewPane implements IViewWelcomeDelegate {
 					: 'explicit',
 				supportsChangingModes: true,
 				dndContainer: parent,
+				inputEditorMinLines: this.workbenchEnvironmentService.isSessionsWindow ? 2 : undefined,
 			},
 			{
 				listForeground: SIDE_BAR_FOREGROUND,