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Merge pull request #52064 from Microsoft/isidorn/centeredLayout
Centered editor layout
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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-workbench > .part.editor > .content .centered-view-layout { | ||
| height: 100%; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,132 @@ | ||
| /*--------------------------------------------------------------------------------------------- | ||
| * 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!./centeredViewLayout'; | ||
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| import { SplitView, Orientation, ISplitViewStyles, IView as ISplitViewView } from 'vs/base/browser/ui/splitview/splitview'; | ||
| import { $ } from 'vs/base/browser/dom'; | ||
| import { Event, mapEvent, anyEvent } from 'vs/base/common/event'; | ||
| import { IView } from 'vs/base/browser/ui/grid/gridview'; | ||
| import { IDisposable, dispose } from 'vs/base/common/lifecycle'; | ||
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| function toSplitViewView(view: IView, getHeight: () => number): ISplitViewView { | ||
| return { | ||
| element: view.element, | ||
| maximumSize: view.maximumWidth, | ||
| minimumSize: view.minimumWidth, | ||
| onDidChange: mapEvent(view.onDidChange, widthAndHeight => widthAndHeight && widthAndHeight.width), | ||
| layout: size => view.layout(size, getHeight()) | ||
| }; | ||
| } | ||
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| export interface CenteredViewState { | ||
| leftMarginRatio: number; | ||
| rightMarginRatio: number; | ||
| } | ||
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| const GOLDEN_RATIO = { | ||
| leftMarginRatio: 0.1909, | ||
| rightMarginRatio: 0.1909 | ||
| }; | ||
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| export class CenteredViewLayout { | ||
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| private splitView: SplitView; | ||
| private element: HTMLElement; | ||
| private width: number = 0; | ||
| private height: number = 0; | ||
| private style: ISplitViewStyles; | ||
| private didLayout = false; | ||
| private splitViewDisposable: IDisposable[] = []; | ||
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| constructor(private container: HTMLElement, private view: IView, public readonly state: CenteredViewState = GOLDEN_RATIO) { | ||
| this.container.appendChild(this.view.element); | ||
| } | ||
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| layout(width: number, height: number): void { | ||
| this.width = width; | ||
| this.height = height; | ||
| if (this.splitView) { | ||
| this.splitView.layout(width); | ||
| if (!this.didLayout) { | ||
| this.splitView.resizeView(0, this.state.leftMarginRatio * this.width); | ||
| this.splitView.resizeView(2, this.state.rightMarginRatio * this.width); | ||
| } | ||
| } else { | ||
| this.view.layout(width, height); | ||
| } | ||
| this.didLayout = true; | ||
| } | ||
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| isActive(): boolean { | ||
| return !!this.splitView; | ||
| } | ||
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| styles(style: ISplitViewStyles): void { | ||
| this.style = style; | ||
| if (this.splitView) { | ||
| this.splitView.style(this.style); | ||
| } | ||
| } | ||
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| resetView(view: IView): void { | ||
| this.view = view; | ||
| if (this.splitView) { | ||
| const size = this.splitView.getViewSize(1); | ||
| this.splitView.removeView(1); | ||
| this.splitView.addView(toSplitViewView(this.view, () => this.height), size, 1); | ||
| this.splitView.distributeViewSizes(); | ||
| } | ||
| } | ||
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| activate(active: boolean): void { | ||
| if (active === !!this.splitView) { | ||
| return; | ||
| } | ||
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| if (active) { | ||
| this.element = $('.centered-view-layout'); | ||
| this.container.removeChild(this.view.element); | ||
| this.container.appendChild(this.element); | ||
| this.splitView = new SplitView(this.element, { | ||
| inverseAltBehavior: true, | ||
| orientation: Orientation.HORIZONTAL, | ||
| styles: this.style | ||
| }); | ||
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| const onDidSizesChange = anyEvent(this.splitView.onDidSashChange, this.splitView.onDidSashReset); | ||
| this.splitViewDisposable.push(onDidSizesChange(() => { | ||
| this.state.leftMarginRatio = this.splitView.getViewSize(0) / this.width; | ||
| this.state.rightMarginRatio = this.splitView.getViewSize(2) / this.width; | ||
| })); | ||
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| this.splitView.layout(this.width); | ||
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| const getEmptyView = () => ({ | ||
| element: $('.centered-layout-margin'), | ||
| layout: () => undefined, | ||
| minimumSize: 40, | ||
| maximumSize: Number.POSITIVE_INFINITY, | ||
| onDidChange: Event.None | ||
| }); | ||
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| this.splitView.addView(toSplitViewView(this.view, () => this.height), 0); | ||
| this.splitView.addView(getEmptyView(), this.state.leftMarginRatio * this.width, 0); | ||
| this.splitView.addView(getEmptyView(), this.state.rightMarginRatio * this.width, 2); | ||
| } else { | ||
| this.splitViewDisposable = dispose(this.splitViewDisposable); | ||
| this.splitView.dispose(); | ||
| this.splitView = undefined; | ||
| this.container.removeChild(this.element); | ||
| this.container.appendChild(this.view.element); | ||
| } | ||
| } | ||
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| dispose(): void { | ||
| if (this.splitView) { | ||
| this.splitView.dispose(); | ||
| } | ||
| } | ||
| } |
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