577 lines
16 KiB
Svelte
577 lines
16 KiB
Svelte
<script lang="ts">
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import { getContext, onMount, tick } from "svelte";
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import { beginDraggingElement } from "@/io-managers/drag";
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import { platformIsMac } from "@/utility-functions/platform";
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import {
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type LayerType,
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type LayerTypeData,
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type LayerPanelEntry,
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defaultWidgetLayout,
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patchWidgetLayout,
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UpdateDocumentLayerDetails,
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UpdateDocumentLayerTreeStructureJs,
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UpdateLayerTreeOptionsLayout,
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layerTypeData,
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} from "@/wasm-communication/messages";
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import LayoutCol from "@/components/layout/LayoutCol.svelte";
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import LayoutRow from "@/components/layout/LayoutRow.svelte";
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import IconButton from "@/components/widgets/buttons/IconButton.svelte";
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import IconLabel from "@/components/widgets/labels/IconLabel.svelte";
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import WidgetLayout from "@/components/widgets/WidgetLayout.svelte";
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import type { Editor } from "@/wasm-communication/editor";
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type LayerListingInfo = {
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folderIndex: number;
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bottomLayer: boolean;
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editingName: boolean;
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entry: LayerPanelEntry;
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};
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let list: LayoutCol;
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const RANGE_TO_INSERT_WITHIN_BOTTOM_FOLDER_NOT_ROOT = 20;
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const LAYER_INDENT = 16;
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const INSERT_MARK_MARGIN_LEFT = 4 + 32 + LAYER_INDENT;
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const INSERT_MARK_OFFSET = 2;
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type DraggingData = {
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select?: () => void;
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insertFolder: BigUint64Array;
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insertIndex: number;
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highlightFolder: boolean;
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markerHeight: number;
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};
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const editor = getContext<Editor>("editor");
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// Layer data
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let layerCache = new Map<string, LayerPanelEntry>(); // TODO: replace with BigUint64Array as index
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let layers: LayerListingInfo[] = [];
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// Interactive dragging
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let draggable = true;
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let draggingData: undefined | DraggingData = undefined;
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let fakeHighlight: undefined | BigUint64Array[] = undefined;
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let dragInPanel = false;
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// Layouts
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let layerTreeOptionsLayout = defaultWidgetLayout();
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onMount(() => {
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editor.subscriptions.subscribeJsMessage(UpdateLayerTreeOptionsLayout, (updateLayerTreeOptionsLayout) => {
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patchWidgetLayout(layerTreeOptionsLayout, updateLayerTreeOptionsLayout);
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layerTreeOptionsLayout = layerTreeOptionsLayout;
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});
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editor.subscriptions.subscribeJsMessage(UpdateDocumentLayerTreeStructureJs, (updateDocumentLayerTreeStructure) => {
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rebuildLayerTree(updateDocumentLayerTreeStructure);
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});
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editor.subscriptions.subscribeJsMessage(UpdateDocumentLayerDetails, (updateDocumentLayerDetails) => {
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const targetLayer = updateDocumentLayerDetails.data;
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const targetPath = targetLayer.path;
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updateLayerInTree(targetPath, targetLayer);
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});
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});
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function layerIndent(layer: LayerPanelEntry): string {
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return `${layer.path.length * LAYER_INDENT}px`;
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}
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function markIndent(path: BigUint64Array): string {
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return `${INSERT_MARK_MARGIN_LEFT + path.length * LAYER_INDENT}px`;
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}
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function markTopOffset(height: number): string {
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return `${height}px`;
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}
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function toggleLayerVisibility(path: BigUint64Array) {
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editor.instance.toggleLayerVisibility(path);
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}
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function handleExpandArrowClick(path: BigUint64Array) {
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editor.instance.toggleLayerExpansion(path);
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}
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async function onEditLayerName(listing: LayerListingInfo) {
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if (listing.editingName) return;
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listing.editingName = true;
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draggable = false;
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await tick();
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const textInput = (list?.div().querySelector("[data-text-input]:not([disabled])") || undefined) as HTMLInputElement | undefined;
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textInput?.select();
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}
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function onEditLayerNameChange(listing: LayerListingInfo, e: Event) {
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// Eliminate duplicate events
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if (!listing.editingName) return;
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draggable = true;
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const name = (e.target as HTMLInputElement | undefined)?.value;
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listing.editingName = false;
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if (name) editor.instance.setLayerName(listing.entry.path, name);
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}
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async function onEditLayerNameDeselect(listing: LayerListingInfo) {
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draggable = true;
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listing.editingName = false;
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await tick();
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window.getSelection()?.removeAllRanges();
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}
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function selectLayerWithModifiers(e: MouseEvent, listing: LayerListingInfo) {
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// Get the pressed state of the modifier keys
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const [ctrl, meta, shift, alt] = [e.ctrlKey, e.metaKey, e.shiftKey, e.altKey];
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// Get the state of the platform's accel key and its opposite platform's accel key
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const [accel, oppositeAccel] = platformIsMac() ? [meta, ctrl] : [ctrl, meta];
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// Select the layer only if the accel and/or shift keys are pressed
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if (!oppositeAccel && !alt) selectLayer(accel, shift, listing);
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e.stopPropagation();
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}
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function selectLayer(accel: boolean, shift: boolean, listing: LayerListingInfo) {
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// Don't select while we are entering text to rename the layer
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if (listing.editingName) return;
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editor.instance.selectLayer(listing.entry.path, accel, shift);
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}
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async function deselectAllLayers() {
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editor.instance.deselectAllLayers();
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}
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function calculateDragIndex(tree: LayoutCol, clientY: number, select?: () => void): DraggingData {
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const treeChildren = tree.div().children;
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const treeOffset = tree.div().getBoundingClientRect().top;
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// Closest distance to the middle of the row along the Y axis
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let closest = Infinity;
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// Folder to insert into
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let insertFolder = new BigUint64Array();
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// Insert index
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let insertIndex = -1;
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// Whether you are inserting into a folder and should show the folder outline
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let highlightFolder = false;
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let markerHeight = 0;
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let previousHeight = undefined as undefined | number;
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Array.from(treeChildren).forEach((treeChild, index) => {
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const layerComponents = treeChild.getElementsByClassName("layer");
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if (layerComponents.length !== 1) return;
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const child = layerComponents[0];
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const indexAttribute = child.getAttribute("data-index");
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if (!indexAttribute) return;
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const { folderIndex, entry: layer } = layers[parseInt(indexAttribute, 10)];
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const rect = child.getBoundingClientRect();
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const position = rect.top + rect.height / 2;
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const distance = position - clientY;
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// Inserting above current row
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if (distance > 0 && distance < closest) {
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insertFolder = layer.path.slice(0, layer.path.length - 1);
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insertIndex = folderIndex;
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highlightFolder = false;
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closest = distance;
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markerHeight = previousHeight || treeOffset + INSERT_MARK_OFFSET;
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}
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// Inserting below current row
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else if (distance > -closest && distance > -RANGE_TO_INSERT_WITHIN_BOTTOM_FOLDER_NOT_ROOT && distance < 0) {
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insertFolder = layer.layerType === "Folder" ? layer.path : layer.path.slice(0, layer.path.length - 1);
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insertIndex = layer.layerType === "Folder" ? 0 : folderIndex + 1;
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highlightFolder = layer.layerType === "Folder";
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closest = -distance;
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markerHeight = index === treeChildren.length - 1 ? rect.bottom - INSERT_MARK_OFFSET : rect.bottom;
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}
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// Inserting with no nesting at the end of the panel
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else if (closest === Infinity) {
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if (layer.path.length === 1) insertIndex = folderIndex + 1;
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markerHeight = rect.bottom - INSERT_MARK_OFFSET;
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}
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previousHeight = rect.bottom;
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});
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markerHeight -= treeOffset;
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return {
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select,
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insertFolder,
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insertIndex,
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highlightFolder,
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markerHeight,
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};
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}
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async function dragStart(event: DragEvent, listing: LayerListingInfo) {
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const layer = listing.entry;
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dragInPanel = true;
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if (!layer.layerMetadata.selected) {
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fakeHighlight = [layer.path];
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}
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const select = (): void => {
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if (!layer.layerMetadata.selected) selectLayer(false, false, listing);
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};
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const target = (event.target || undefined) as HTMLElement | undefined;
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const draggingELement = (target?.closest("[data-layer]") || undefined) as HTMLElement | undefined;
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if (draggingELement) beginDraggingElement(draggingELement);
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// Set style of cursor for drag
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if (event.dataTransfer) {
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event.dataTransfer.dropEffect = "move";
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event.dataTransfer.effectAllowed = "move";
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}
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if (list) draggingData = calculateDragIndex(list, event.clientY, select);
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}
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function updateInsertLine(event: DragEvent) {
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// Stop the drag from being shown as cancelled
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event.preventDefault();
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dragInPanel = true;
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if (list) draggingData = calculateDragIndex(list, event.clientY, draggingData?.select);
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}
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async function drop() {
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if (draggingData && dragInPanel) {
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const { select, insertFolder, insertIndex } = draggingData;
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select?.();
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editor.instance.moveLayerInTree(insertFolder, insertIndex);
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}
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draggingData = undefined;
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fakeHighlight = undefined;
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dragInPanel = false;
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}
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function rebuildLayerTree(updateDocumentLayerTreeStructure: UpdateDocumentLayerTreeStructureJs) {
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const layerWithNameBeingEdited = layers.find((layer: LayerListingInfo) => layer.editingName);
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const layerPathWithNameBeingEdited = layerWithNameBeingEdited?.entry.path;
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const layerIdWithNameBeingEdited = layerPathWithNameBeingEdited?.slice(-1)[0];
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const path: bigint[] = [];
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// Clear the layer tree before rebuilding it
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layers = [];
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// Build the new layer tree
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const recurse = (folder: UpdateDocumentLayerTreeStructureJs): void => {
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folder.children.forEach((item, index) => {
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// TODO: fix toString
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const layerId = BigInt(item.layerId.toString());
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path.push(layerId);
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const mapping = layerCache.get(path.toString());
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if (mapping) {
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layers.push({
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folderIndex: index,
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bottomLayer: index === folder.children.length - 1,
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entry: mapping,
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editingName: layerIdWithNameBeingEdited === layerId,
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});
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}
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// Call self recursively if there are any children
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if (item.children.length >= 1) recurse(item);
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path.pop();
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});
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};
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recurse(updateDocumentLayerTreeStructure);
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layers = layers;
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}
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function updateLayerInTree(targetPath: BigUint64Array, targetLayer: LayerPanelEntry) {
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const path = targetPath.toString();
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layerCache.set(path, targetLayer);
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const layer = layers.find((layer: LayerListingInfo) => layer.entry.path.toString() === path);
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if (layer) {
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layer.entry = targetLayer;
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layers = layers;
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}
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}
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function getLayerTypeData(layerType: LayerType): LayerTypeData {
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return layerTypeData(layerType) || { name: "Error", icon: "Info" };
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}
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</script>
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<LayoutCol class="layer-tree" on:dragleave={() => (dragInPanel = false)}>
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<LayoutRow class="options-bar" scrollableX={true}>
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<WidgetLayout layout={layerTreeOptionsLayout} />
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</LayoutRow>
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<LayoutRow class="layer-tree-rows" scrollableY={true}>
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<LayoutCol class="list" bind:this={list} on:click={() => deselectAllLayers()} on:dragover={(e) => draggable && updateInsertLine(e)} on:dragend={() => draggable && drop()}>
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{#each layers as listing, index (String(listing.entry.path.slice(-1)))}
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<LayoutRow
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class="layer-row"
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classes={{
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"insert-folder": (draggingData?.highlightFolder || false) && draggingData?.insertFolder === listing.entry.path,
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}}
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>
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<LayoutRow class="visibility">
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<IconButton
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action={(e) => (toggleLayerVisibility(listing.entry.path), e?.stopPropagation())}
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size={24}
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icon={listing.entry.visible ? "EyeVisible" : "EyeHidden"}
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tooltip={listing.entry.visible ? "Visible" : "Hidden"}
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/>
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</LayoutRow>
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<div class="indent" style:margin-left={layerIndent(listing.entry)} />
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{#if listing.entry.layerType === "Folder"}
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<button class="expand-arrow" class:expanded={listing.entry.layerMetadata.expanded} on:click|stopPropagation={() => handleExpandArrowClick(listing.entry.path)} tabindex="0" />
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{/if}
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<LayoutRow
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class="layer"
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classes={{
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selected: fakeHighlight ? fakeHighlight.includes(listing.entry.path) : listing.entry.layerMetadata.selected,
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}}
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data-layer={String(listing.entry.path)}
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data-index={index}
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tooltip={listing.entry.tooltip}
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{draggable}
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on:dragstart={(e) => draggable && dragStart(e, listing)}
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on:click={(e) => selectLayerWithModifiers(e, listing)}
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>
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<LayoutRow class="layer-type-icon">
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<IconLabel icon={getLayerTypeData(listing.entry.layerType).icon} tooltip={getLayerTypeData(listing.entry.layerType).name} />
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</LayoutRow>
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<LayoutRow class="layer-name" on:dblclick={() => onEditLayerName(listing)}>
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<input
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data-text-input
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type="text"
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value={listing.entry.name}
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placeholder={getLayerTypeData(listing.entry.layerType).name}
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disabled={!listing.editingName}
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on:blur={() => onEditLayerNameDeselect(listing)}
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on:keydown={(e) => e.key === "Escape" && onEditLayerNameDeselect(listing)}
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on:keydown={(e) => e.key === "Enter" && onEditLayerNameChange(listing, e)}
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on:change={(e) => onEditLayerNameChange(listing, e)}
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/>
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</LayoutRow>
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<div class="thumbnail">
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{@html listing.entry.thumbnail}
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</div>
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</LayoutRow>
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</LayoutRow>
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{/each}
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</LayoutCol>
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{#if draggingData && !draggingData.highlightFolder && dragInPanel}
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<div class="insert-mark" style:left={markIndent(draggingData.insertFolder)} style:top={markTopOffset(draggingData.markerHeight)} />
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{/if}
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</LayoutRow>
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</LayoutCol>
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<style lang="scss" global>
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.layer-tree {
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// Options bar
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.options-bar {
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height: 32px;
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flex: 0 0 auto;
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margin: 0 4px;
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align-items: center;
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.widget-layout {
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width: 100%;
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min-width: 300px;
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}
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// Blend mode selector
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.dropdown-input {
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max-width: 120px;
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}
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// Blend mode selector and opacity slider
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.dropdown-input,
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.number-input {
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flex: 1 1 auto;
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}
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}
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// Layer tree
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.layer-tree-rows {
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margin-top: 4px;
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// Crop away the 1px border below the bottom layer entry when it uses the full space of this panel
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margin-bottom: -1px;
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position: relative;
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.layer-row {
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flex: 0 0 auto;
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align-items: center;
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position: relative;
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height: 32px;
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margin: 0 4px;
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border-bottom: 1px solid var(--color-4-dimgray);
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.visibility {
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flex: 0 0 auto;
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height: 100%;
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align-items: center;
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.icon-button {
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height: 100%;
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width: calc(24px + 2 * 4px);
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}
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}
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.expand-arrow {
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padding: 0;
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margin: 0;
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margin-left: -16px;
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width: 16px;
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height: 100%;
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border: none;
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position: relative;
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background: none;
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flex: 0 0 auto;
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display: flex;
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align-items: center;
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justify-content: center;
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border-radius: 2px;
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&:hover {
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background: var(--color-6-lowergray);
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}
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&::after {
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content: "";
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position: absolute;
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width: 0;
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height: 0;
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border-style: solid;
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border-width: 3px 0 3px 6px;
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border-color: transparent transparent transparent var(--color-e-nearwhite);
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&:hover {
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color: var(--color-f-white);
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}
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}
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&.expanded::after {
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border-width: 6px 3px 0 3px;
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border-color: var(--color-e-nearwhite) transparent transparent transparent;
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&:hover {
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color: var(--color-f-white);
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}
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}
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}
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.layer {
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align-items: center;
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z-index: 1;
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width: 100%;
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height: 100%;
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padding: 0 4px;
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border-radius: 2px;
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margin-right: 8px;
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&.selected {
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background: var(--color-5-dullgray);
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color: var(--color-f-white);
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}
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.layer-type-icon {
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flex: 0 0 auto;
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margin: 0 4px;
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}
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.layer-name {
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flex: 1 1 100%;
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margin: 0 4px;
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input {
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color: inherit;
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background: none;
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border: none;
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outline: none; // Ok for input element
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margin: 0;
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padding: 0;
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text-overflow: ellipsis;
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white-space: nowrap;
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overflow: hidden;
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border-radius: 2px;
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height: 24px;
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width: 100%;
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&:disabled {
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-webkit-user-select: none; // Required as of Safari 15.0 (Graphite's minimum version) through the latest release
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user-select: none;
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// Workaround for `user-select: none` not working on <input> elements
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pointer-events: none;
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}
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&::placeholder {
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color: inherit;
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font-style: italic;
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}
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&:focus {
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background: var(--color-1-nearblack);
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padding: 0 4px;
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&::placeholder {
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opacity: 0.5;
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}
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}
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}
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}
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.thumbnail {
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width: 36px;
|
|
height: 24px;
|
|
margin: 2px 0;
|
|
margin-left: 4px;
|
|
background: white;
|
|
border-radius: 2px;
|
|
flex: 0 0 auto;
|
|
|
|
svg {
|
|
width: calc(100% - 4px);
|
|
height: calc(100% - 4px);
|
|
margin: 2px;
|
|
}
|
|
}
|
|
}
|
|
|
|
&.insert-folder .layer {
|
|
outline: 3px solid var(--color-e-nearwhite);
|
|
outline-offset: -3px;
|
|
}
|
|
}
|
|
|
|
.insert-mark {
|
|
position: absolute;
|
|
// `left` is applied dynamically
|
|
right: 0;
|
|
background: var(--color-e-nearwhite);
|
|
margin-top: -2px;
|
|
height: 5px;
|
|
z-index: 1;
|
|
pointer-events: none;
|
|
}
|
|
}
|
|
}
|
|
</style>
|