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Merge pull request #97912 from microsoft/isidorn/selection-anchor
editor: introduce anchor selection
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/*--------------------------------------------------------------------------------------------- | ||
* Copyright (c) Microsoft Corporation. All rights reserved. | ||
* Licensed under the MIT License. See License.txt in the project root for license information. | ||
*--------------------------------------------------------------------------------------------*/ | ||
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.monaco-editor .selection-anchor { | ||
background-color: #007ACC; | ||
width: 2px !important; | ||
} |
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/*--------------------------------------------------------------------------------------------- | ||
* Copyright (c) Microsoft Corporation. All rights reserved. | ||
* Licensed under the MIT License. See License.txt in the project root for license information. | ||
*--------------------------------------------------------------------------------------------*/ | ||
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import 'vs/css!./anchorSelect'; | ||
import { EditorAction, ServicesAccessor, registerEditorAction, registerEditorContribution } from 'vs/editor/browser/editorExtensions'; | ||
import { localize } from 'vs/nls'; | ||
import { EditorContextKeys } from 'vs/editor/common/editorContextKeys'; | ||
import { Selection } from 'vs/editor/common/core/selection'; | ||
import { KeyMod, KeyCode, KeyChord } from 'vs/base/common/keyCodes'; | ||
import { KeybindingWeight } from 'vs/platform/keybinding/common/keybindingsRegistry'; | ||
import { ICodeEditor } from 'vs/editor/browser/editorBrowser'; | ||
import { RawContextKey, IContextKeyService, IContextKey } from 'vs/platform/contextkey/common/contextkey'; | ||
import { IEditorContribution } from 'vs/editor/common/editorCommon'; | ||
import { TrackedRangeStickiness } from 'vs/editor/common/model'; | ||
import { MarkdownString } from 'vs/base/common/htmlContent'; | ||
import { IDisposable } from 'vs/base/common/lifecycle'; | ||
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export const SelectionAnchorSet = new RawContextKey('selectionAnchorSet', false); | ||
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class SelectionAnchorController implements IEditorContribution { | ||
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public static readonly ID = 'editor.contrib.selectionAnchorController'; | ||
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static get(editor: ICodeEditor): SelectionAnchorController { | ||
return editor.getContribution<SelectionAnchorController>(SelectionAnchorController.ID); | ||
} | ||
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private decorationId: string | undefined; | ||
private selectionAnchorSetContextKey: IContextKey<boolean>; | ||
private modelChangeListener: IDisposable; | ||
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constructor( | ||
private editor: ICodeEditor, | ||
@IContextKeyService contextKeyService: IContextKeyService | ||
) { | ||
this.selectionAnchorSetContextKey = SelectionAnchorSet.bindTo(contextKeyService); | ||
this.modelChangeListener = editor.onDidChangeModel(() => this.selectionAnchorSetContextKey.reset()); | ||
} | ||
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setSelectionAnchor(): void { | ||
if (this.editor.hasModel()) { | ||
const position = this.editor.getPosition(); | ||
const previousDecorations = this.decorationId ? [this.decorationId] : []; | ||
const newDecorationId = this.editor.deltaDecorations(previousDecorations, [{ | ||
range: Selection.fromPositions(position, position), | ||
options: { | ||
stickiness: TrackedRangeStickiness.NeverGrowsWhenTypingAtEdges, | ||
hoverMessage: new MarkdownString().appendText(localize('selectionAnchor', "Selection Anchor")), | ||
className: 'selection-anchor' | ||
} | ||
}]); | ||
this.decorationId = newDecorationId[0]; | ||
this.selectionAnchorSetContextKey.set(!!this.decorationId); | ||
} | ||
} | ||
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goToSelectionAnchor(): void { | ||
if (this.editor.hasModel() && this.decorationId) { | ||
const anchorPosition = this.editor.getModel().getDecorationRange(this.decorationId); | ||
if (anchorPosition) { | ||
this.editor.setPosition(anchorPosition.getStartPosition()); | ||
} | ||
} | ||
} | ||
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selectFromAnchorToCursor(): void { | ||
if (this.editor.hasModel() && this.decorationId) { | ||
const start = this.editor.getModel().getDecorationRange(this.decorationId); | ||
if (start) { | ||
const end = this.editor.getPosition(); | ||
this.editor.setSelection(Selection.fromPositions(start.getStartPosition(), end)); | ||
this.cancelSelectionAnchor(); | ||
} | ||
} | ||
} | ||
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cancelSelectionAnchor(): void { | ||
if (this.decorationId) { | ||
this.editor.deltaDecorations([this.decorationId], []); | ||
this.decorationId = undefined; | ||
this.selectionAnchorSetContextKey.set(false); | ||
} | ||
} | ||
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dispose(): void { | ||
this.cancelSelectionAnchor(); | ||
this.modelChangeListener.dispose(); | ||
} | ||
} | ||
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class SetSelectionAnchor extends EditorAction { | ||
constructor() { | ||
super({ | ||
id: 'editor.action.setSelectionAnchor', | ||
label: localize('setSelectionAnchor', "Set Selection Anchor"), | ||
alias: 'Set Selection Anchor', | ||
precondition: undefined, | ||
kbOpts: { | ||
kbExpr: EditorContextKeys.editorTextFocus, | ||
primary: KeyChord(KeyMod.CtrlCmd | KeyCode.KEY_K, KeyMod.CtrlCmd | KeyCode.KEY_B), | ||
weight: KeybindingWeight.EditorContrib | ||
} | ||
}); | ||
} | ||
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async run(_accessor: ServicesAccessor, editor: ICodeEditor): Promise<void> { | ||
const controller = SelectionAnchorController.get(editor); | ||
controller.setSelectionAnchor(); | ||
} | ||
} | ||
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class GoToSelectionAnchor extends EditorAction { | ||
constructor() { | ||
super({ | ||
id: 'editor.action.goToSelectionAnchor', | ||
label: localize('goToSelectionAnchor', "Go to Selection Anchor"), | ||
alias: 'Go to Selection Anchor', | ||
precondition: SelectionAnchorSet, | ||
}); | ||
} | ||
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async run(_accessor: ServicesAccessor, editor: ICodeEditor): Promise<void> { | ||
const controller = SelectionAnchorController.get(editor); | ||
controller.goToSelectionAnchor(); | ||
} | ||
} | ||
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class SelectFromAnchorToCursor extends EditorAction { | ||
constructor() { | ||
super({ | ||
id: 'editor.action.selectFromAnchorToCursor', | ||
label: localize('selectFromAnchorToCursor', "Select from Anchor to Cursor"), | ||
alias: 'Select from Anchor to Cursor', | ||
precondition: SelectionAnchorSet, | ||
kbOpts: { | ||
kbExpr: EditorContextKeys.editorTextFocus, | ||
primary: KeyChord(KeyMod.CtrlCmd | KeyCode.KEY_K, KeyMod.CtrlCmd | KeyCode.KEY_K), | ||
weight: KeybindingWeight.EditorContrib | ||
} | ||
}); | ||
} | ||
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async run(_accessor: ServicesAccessor, editor: ICodeEditor): Promise<void> { | ||
const controller = SelectionAnchorController.get(editor); | ||
controller.selectFromAnchorToCursor(); | ||
} | ||
} | ||
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class CancelSelectionAnchor extends EditorAction { | ||
constructor() { | ||
super({ | ||
id: 'editor.action.cancelSelectionAnchor', | ||
label: localize('cancelSelectionAnchor', "Cancel Selection Anchor"), | ||
alias: 'Cancel Selection Anchor', | ||
precondition: SelectionAnchorSet, | ||
kbOpts: { | ||
kbExpr: EditorContextKeys.editorTextFocus, | ||
primary: KeyCode.Escape, | ||
weight: KeybindingWeight.EditorContrib | ||
} | ||
}); | ||
} | ||
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async run(_accessor: ServicesAccessor, editor: ICodeEditor): Promise<void> { | ||
const controller = SelectionAnchorController.get(editor); | ||
controller.cancelSelectionAnchor(); | ||
} | ||
} | ||
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registerEditorContribution(SelectionAnchorController.ID, SelectionAnchorController); | ||
registerEditorAction(SetSelectionAnchor); | ||
registerEditorAction(GoToSelectionAnchor); | ||
registerEditorAction(SelectFromAnchorToCursor); | ||
registerEditorAction(CancelSelectionAnchor); |
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