DiffView

行を同期しつつ各ペインを個別に横スクロールできる、仮想化された分割／統合ファイル差分ビューです。

既定では言語文法を含みません。Rust はリンク済み文法を登録でき、Go / TypeScript は LoadLanguagePack / loadLanguagePack で選択した Tree-sitter Wasm 文法とクエリをまとめた単一の移植可能なパックを読み込めます。

既定では見た目のスタイルを持ちません。文字と行番号の色は継承され、背景、枠線、角丸、余白、構文・差分の配色は追加されません。外観はアプリ側で明示的に指定します。

#インポート

go get github.com/egoist/quickgui/extensions/editor

import (
	"github.com/egoist/quickgui/extensions/editor"
	"github.com/egoist/quickgui/go/ui"
)

#使い方

func DiffViewExample() *ui.Element {
	return editor.DiffView(editor.DiffViewProps{
		OldPath: "before.go",
		NewPath: "after.go",
		OldText: "func answer() int { return 41 }\n",
		NewText: "func answer() int { return 42 }\n",
		Options: editor.DiffOptions{
			Layout:      editor.DiffSplit,
			Indicators:  editor.DiffBars,
			LineNumbers: true,
			Language:    "go",
		},
		Props: ui.Props{Style: ui.Style().Width("100%").Height(420)},
	})
}

#シンタックスハイライト

DiffView は Editor と同じ同梱 Tree-sitter 文法を使います。ドキュメント、言語、構文配色が変わると、Rust コアは表示対象となる各ファイルの新旧行シーケンスを一度ずつ解析し、キャプチャ断片を論理行へ割り当てます。スタイル付きテキストは行のマウント時にだけ生成してキャッシュし、重ならないバイト境界で行内の追加／削除強調を統合します。スクロール時にパーサーは動きません。

#API リファレンス

項目を展開すると説明と完全なシグネチャが表示されます。ダッシュは宣言に既定値が記載されていないことを示します。

`editor.DiffView`

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editor.DiffView(props DiffViewProps) *ui.Element

StyleStyleBuilder—

Reusable layout, typography, color, and interaction-state styles. Build with ui.Style() and compose with Merge.

StyleBuilder

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Childrenany—

Content mounted inside the component. Compound child callbacks run after the parent context exists.

any

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OnClickfunc(*native.Event)—

Called after QuickGUI resolves an activation, including supported keyboard activation.

func(*native.Event)

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OnMouseEnterfunc(*native.Event)—

Callback for mouse enter. The signature below lists the event payload.

func(*native.Event)

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OnMouseLeavefunc(*native.Event)—

Callback for mouse leave. The signature below lists the event payload.

func(*native.Event)

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OnInputfunc(*native.Event)—

Receives edits from the text control. Write the new text into the controlled value.

func(*native.Event)

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OnSubmitfunc(*native.Event)—

Called when the control submits its current value.

func(*native.Event)

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OnDismissfunc(*native.Event)—

Reports toast identifiers dismissed by the core.

func(*native.Event)

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OnPointerfunc(*native.Event)—

Callback for pointer. The signature below lists the event payload.

func(*native.Event)

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OnPresentationChangefunc(*native.Event)—

Callback for presentation change. The signature below lists the event payload.

func(*native.Event)

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OnSelectfunc(*native.Event)—

Reports the menu entry selected by the core.

func(*native.Event)

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OnKeyDownfunc(*native.Event)—

Callback for key down. The signature below lists the event payload.

func(*native.Event)

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OnKeyUpfunc(*native.Event)—

Callback for key up. The signature below lists the event payload.

func(*native.Event)

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OnMouseDownfunc(*native.Event)—

Callback for mouse down. The signature below lists the event payload.

func(*native.Event)

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OnMouseUpfunc(*native.Event)—

Callback for mouse up. The signature below lists the event payload.

func(*native.Event)

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OnMouseMovefunc(*native.Event)—

Callback for mouse move. The signature below lists the event payload.

func(*native.Event)

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OnDoubleClickfunc(*native.Event)—

Callback for double click. The signature below lists the event payload.

func(*native.Event)

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OnWheelfunc(*native.Event)—

Callback for wheel. The signature below lists the event payload.

func(*native.Event)

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OnContextMenufunc(*native.Event)—

Callback for context menu. The signature below lists the event payload.

func(*native.Event)

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OnPinchfunc(*native.Event)—

Callback for pinch. The signature below lists the event payload.

func(*native.Event)

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OnRotatefunc(*native.Event)—

Callback for rotate. The signature below lists the event payload.

func(*native.Event)

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OnSmartMagnifyfunc(*native.Event)—

Callback for smart magnify. The signature below lists the event payload.

func(*native.Event)

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OnPressurefunc(*native.Event)—

Callback for pressure. The signature below lists the event payload.

func(*native.Event)

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OnFocusfunc(*native.Event)—

Callback for focus. The signature below lists the event payload.

func(*native.Event)

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OnBlurfunc(*native.Event)—

Callback for blur. The signature below lists the event payload.

func(*native.Event)

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OnActionfunc(*native.Event)—

Callback for action. The signature below lists the event payload.

func(*native.Event)

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OnDragStartfunc(*native.Event)—

Callback for drag start. The signature below lists the event payload.

func(*native.Event)

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OnDragEndfunc(*native.Event)—

Callback for drag end. The signature below lists the event payload.

func(*native.Event)

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OnDropfunc(*native.Event)—

Callback for drop. The signature below lists the event payload.

func(*native.Event)

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OnFilesDroppedfunc(*native.Event)—

Callback for files dropped. The signature below lists the event payload.

func(*native.Event)

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OnComponentChangefunc(*native.Event)—

Receives the component change payload, including values for coordinated controls.

func(*native.Event)

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OnCommitfunc(*native.Event)—

Reports one explicit commit boundary and its final value details.

func(*native.Event)

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Disabledany—

Prevents activation and exposes the disabled state to accessibility. Compound parts inherit a disabled root.

any

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Valueany—

The current controlled value. Update application state from the change callback to accept a new value.

any

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Placeholderstring—

Hint displayed while the text value is empty.

string

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Multilinebool—

Allows multiple lines in the core text editor.

bool

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AriaLabelany—

Accessible name, especially for icon-only controls or controls without a visible label.

any

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Selectedany—

Exposes the selected state of this item.

any

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Groupany—

Names this element as a group for descendant interaction-state styling.

any

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FocusOnPointerany—

Whether a pointer press moves keyboard focus to the control.

any

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FocusableWhenDisabledany—

Allows a disabled button to remain keyboard focusable while activation stays disabled.

any

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HitSlopany—

Expands the pointer hit area without changing the visual bounds.

any

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HitSlopTopany—

Extra pointer hit area above the visual bounds.

any

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HitSlopRightany—

Extra pointer hit area to the right of the visual bounds.

any

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HitSlopBottomany—

Extra pointer hit area below the visual bounds.

any

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HitSlopLeftany—

Extra pointer hit area to the left of the visual bounds.

any

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Reffunc(*native.Node)—

Receives the retained native node after construction. Keep imperative work in event or lifecycle callbacks.

func(*native.Node)

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Passwordany—

Conceals the entered text while preserving the editor’s value.

any

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EstimatedItemHeightany—

Initial logical row-height estimate used by virtualization.

any

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Overscanany—

Extra rows mounted before and after the visible range.

any

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OverscanPixelsany—

Extra logical distance mounted before and after the visible range.

any

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ItemHeightsany—

Exact row heights supplied without waiting for layout measurement.

any

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ListAlignmentstring—

Pins short list content to the top or bottom.

string

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FollowModestring—

Chooses ordinary scrolling or tail-following behavior.

string

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ObjectFitstring—

How image content fits its declared box.

string

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ShaderParametersany—

Up to sixteen numeric values packed into fixed shader parameter vectors.

any

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Invalidany—

Projects invalid state to the field and its parts.

any

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Roleany—

Accessibility role override. Prefer the component’s built-in semantics.

any

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TabIndexany—

Controls sequential keyboard focus order. Omit to retain the component’s default focus behavior.

any

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Overlayany—

Places this content in the overlay paint plane.

any

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FocusTrapany—

Keeps keyboard focus within the active modal surface.

any

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RestorePreviousFocusany—

Restores the previously focused element when the surface closes.

any

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AutoFocusany—

Requests initial keyboard focus when the element mounts.

any

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AriaModalany—

Exposes the modal state of the surface to accessibility.

any

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DismissOnEscapeany—

Allows Escape to dismiss the surface.

any

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DismissOnPointerOutsideany—

Allows a pointer press outside the surface to dismiss it.

any

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TooltipTextany—

Text displayed by the element’s tooltip.

any

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TooltipPlacementany—

Preferred side and alignment of the tooltip.

any

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TooltipDelayany—

Delay before the tooltip opens.

any

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TooltipGapany—

Space between the tooltip and its trigger.

any

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TooltipViewportMarginany—

Minimum space between the tooltip and the window edges.

any

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AnchorTargetany—

Identity of the element used to position the surface.

any

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AnchorPlacementany—

Preferred side and alignment relative to the anchor.

any

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AnchorGapany—

Space between the anchor and its surface, in logical pixels.

any

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ViewportMarginany—

Minimum space reserved around the surface within the viewport.

any

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Keymapany—

Keyboard bindings used by the editor.

any

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Draggableany—

Enables the element as a drag source.

any

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DropKindsany—

Kinds of drop payload this target accepts.

any

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Patchany—

Configures patch for this part. The declared type and source define the accepted value.

any

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OldTextany—

Configures old text for this part. The declared type and source define the accepted value.

any

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NewTextany—

Configures new text for this part. The declared type and source define the accepted value.

any

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OldPathany—

Configures old path for this part. The declared type and source define the accepted value.

any

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NewPathany—

Configures new path for this part. The declared type and source define the accepted value.

any

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OptionsDiffOptions—

Ordered native picker options.

DiffOptions

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PresentationDiffPresentation—

Configures presentation for this part. The declared type and source define the accepted value.

DiffPresentation

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ThemeDiffTheme—

Configures theme for this part. The declared type and source define the accepted value.

DiffTheme

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SyntaxThemeSyntaxTheme—

Configures syntax theme for this part. The declared type and source define the accepted value.

SyntaxTheme

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