/var/www/coffee-cms.ru/html: .cms/lib/codemirror/src/model/mark_text.js comparison

comparison .cms/lib/codemirror/src/model/mark_text.js @ 0:78edf6b517a0 draft

24.10

author	Coffee CMS <info@coffee-cms.ru>
date	Fri, 11 Oct 2024 22:40:23 +0000
parents
children

comparison

equal deleted inserted replaced

--1:000000000000
+:78edf6b517a0
+import { eltP } from "../util/dom.js"
+import { eventMixin, hasHandler, on } from "../util/event.js"
+import { endOperation, operation, runInOp, startOperation } from "../display/operations.js"
+import { clipPos, cmp, Pos } from "../line/pos.js"
+import { lineNo, updateLineHeight } from "../line/utils_line.js"
+import { clearLineMeasurementCacheFor, findViewForLine, textHeight } from "../measurement/position_measurement.js"
+import { seeReadOnlySpans, seeCollapsedSpans } from "../line/saw_special_spans.js"
+import { addMarkedSpan, conflictingCollapsedRange, getMarkedSpanFor, lineIsHidden, lineLength, MarkedSpan, removeMarkedSpan, visualLine } from "../line/spans.js"
+import { copyObj, indexOf, lst } from "../util/misc.js"
+import { signalLater } from "../util/operation_group.js"
+import { widgetHeight } from "../measurement/widgets.js"
+import { regChange, regLineChange } from "../display/view_tracking.js"
+import { linkedDocs } from "./document_data.js"
+import { addChangeToHistory } from "./history.js"
+import { reCheckSelection } from "./selection_updates.js"
+// TEXTMARKERS
+// Created with markText and setBookmark methods. A TextMarker is a
+// handle that can be used to clear or find a marked position in the
+// document. Line objects hold arrays (markedSpans) containing
+// {from, to, marker} object pointing to such marker objects, and
+// indicating that such a marker is present on that line. Multiple
+// lines may point to the same marker when it spans across lines.
+// The spans will have null for their from/to properties when the
+// marker continues beyond the start/end of the line. Markers have
+// links back to the lines they currently touch.
+// Collapsed markers have unique ids, in order to be able to order
+// them, which is needed for uniquely determining an outer marker
+// when they overlap (they may nest, but not partially overlap).
+let nextMarkerId = 0
+export class TextMarker {
+constructor(doc, type) {
+this.lines = []
+this.type = type
+this.doc = doc
+this.id = ++nextMarkerId
+}
+// Clear the marker.
+clear() {
+if (this.explicitlyCleared) return
+let cm = this.doc.cm, withOp = cm && !cm.curOp
+if (withOp) startOperation(cm)
+if (hasHandler(this, "clear")) {
+let found = this.find()
+if (found) signalLater(this, "clear", found.from, found.to)
+}
+let min = null, max = null
+for (let i = 0; i < this.lines.length; ++i) {
+let line = this.lines[i]
+let span = getMarkedSpanFor(line.markedSpans, this)
+if (cm && !this.collapsed) regLineChange(cm, lineNo(line), "text")
+else if (cm) {
+if (span.to != null) max = lineNo(line)
+if (span.from != null) min = lineNo(line)
+}
+line.markedSpans = removeMarkedSpan(line.markedSpans, span)
+if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm)
+updateLineHeight(line, textHeight(cm.display))
+}
+if (cm && this.collapsed && !cm.options.lineWrapping) for (let i = 0; i < this.lines.length; ++i) {
+let visual = visualLine(this.lines[i]), len = lineLength(visual)
+if (len > cm.display.maxLineLength) {
+cm.display.maxLine = visual
+cm.display.maxLineLength = len
+cm.display.maxLineChanged = true
+}
+}
+if (min != null && cm && this.collapsed) regChange(cm, min, max + 1)
+this.lines.length = 0
+this.explicitlyCleared = true
+if (this.atomic && this.doc.cantEdit) {
+this.doc.cantEdit = false
+if (cm) reCheckSelection(cm.doc)
+}
+if (cm) signalLater(cm, "markerCleared", cm, this, min, max)
+if (withOp) endOperation(cm)
+if (this.parent) this.parent.clear()
+}
+// Find the position of the marker in the document. Returns a {from,
+// to} object by default. Side can be passed to get a specific side
+// -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
+// Pos objects returned contain a line object, rather than a line
+// number (used to prevent looking up the same line twice).
+find(side, lineObj) {
+if (side == null && this.type == "bookmark") side = 1
+let from, to
+for (let i = 0; i < this.lines.length; ++i) {
+let line = this.lines[i]
+let span = getMarkedSpanFor(line.markedSpans, this)
+if (span.from != null) {
+from = Pos(lineObj ? line : lineNo(line), span.from)
+if (side == -1) return from
+}
+if (span.to != null) {
+to = Pos(lineObj ? line : lineNo(line), span.to)
+if (side == 1) return to
+}
+}
+return from && {from: from, to: to}
+}
+// Signals that the marker's widget changed, and surrounding layout
+// should be recomputed.
+changed() {
+let pos = this.find(-1, true), widget = this, cm = this.doc.cm
+if (!pos || !cm) return
+runInOp(cm, () => {
+let line = pos.line, lineN = lineNo(pos.line)
+let view = findViewForLine(cm, lineN)
+if (view) {
+clearLineMeasurementCacheFor(view)
+cm.curOp.selectionChanged = cm.curOp.forceUpdate = true
+}
+cm.curOp.updateMaxLine = true
+if (!lineIsHidden(widget.doc, line) && widget.height != null) {
+let oldHeight = widget.height
+widget.height = null
+let dHeight = widgetHeight(widget) - oldHeight
+if (dHeight)
+updateLineHeight(line, line.height + dHeight)
+}
+signalLater(cm, "markerChanged", cm, this)
+})
+}
+attachLine(line) {
+if (!this.lines.length && this.doc.cm) {
+let op = this.doc.cm.curOp
+if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
+(op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this)
+}
+this.lines.push(line)
+}
+detachLine(line) {
+this.lines.splice(indexOf(this.lines, line), 1)
+if (!this.lines.length && this.doc.cm) {
+let op = this.doc.cm.curOp
+;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this)
+}
+}
+}
+eventMixin(TextMarker)
+// Create a marker, wire it up to the right lines, and
+export function markText(doc, from, to, options, type) {
+// Shared markers (across linked documents) are handled separately
+// (markTextShared will call out to this again, once per
+// document).
+if (options && options.shared) return markTextShared(doc, from, to, options, type)
+// Ensure we are in an operation.
+if (doc.cm && !doc.cm.curOp) return operation(doc.cm, markText)(doc, from, to, options, type)
+let marker = new TextMarker(doc, type), diff = cmp(from, to)
+if (options) copyObj(options, marker, false)
+// Don't connect empty markers unless clearWhenEmpty is false
+if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)
+return marker
+if (marker.replacedWith) {
+// Showing up as a widget implies collapsed (widget replaces text)
+marker.collapsed = true
+marker.widgetNode = eltP("span", [marker.replacedWith], "CodeMirror-widget")
+if (!options.handleMouseEvents) marker.widgetNode.setAttribute("cm-ignore-events", "true")
+if (options.insertLeft) marker.widgetNode.insertLeft = true
+}
+if (marker.collapsed) {
+if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||
+from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))
+throw new Error("Inserting collapsed marker partially overlapping an existing one")
+seeCollapsedSpans()
+}
+if (marker.addToHistory)
+addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN)
+let curLine = from.line, cm = doc.cm, updateMaxLine
+doc.iter(curLine, to.line + 1, line => {
+if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)
+updateMaxLine = true
+if (marker.collapsed && curLine != from.line) updateLineHeight(line, 0)
+addMarkedSpan(line, new MarkedSpan(marker,
+curLine == from.line ? from.ch : null,
+curLine == to.line ? to.ch : null), doc.cm && doc.cm.curOp)
+++curLine
+})
+// lineIsHidden depends on the presence of the spans, so needs a second pass
+if (marker.collapsed) doc.iter(from.line, to.line + 1, line => {
+if (lineIsHidden(doc, line)) updateLineHeight(line, 0)
+})
+if (marker.clearOnEnter) on(marker, "beforeCursorEnter", () => marker.clear())
+if (marker.readOnly) {
+seeReadOnlySpans()
+if (doc.history.done.length || doc.history.undone.length)
+doc.clearHistory()
+}
+if (marker.collapsed) {
+marker.id = ++nextMarkerId
+marker.atomic = true
+}
+if (cm) {
+// Sync editor state
+if (updateMaxLine) cm.curOp.updateMaxLine = true
+if (marker.collapsed)
+regChange(cm, from.line, to.line + 1)
+else if (marker.className || marker.startStyle || marker.endStyle || marker.css ||
+marker.attributes || marker.title)
+for (let i = from.line; i <= to.line; i++) regLineChange(cm, i, "text")
+if (marker.atomic) reCheckSelection(cm.doc)
+signalLater(cm, "markerAdded", cm, marker)
+}
+return marker
+}
+// SHARED TEXTMARKERS
+// A shared marker spans multiple linked documents. It is
+// implemented as a meta-marker-object controlling multiple normal
+// markers.
+export class SharedTextMarker {
+constructor(markers, primary) {
+this.markers = markers
+this.primary = primary
+for (let i = 0; i < markers.length; ++i)
+markers[i].parent = this
+}
+clear() {
+if (this.explicitlyCleared) return
+this.explicitlyCleared = true
+for (let i = 0; i < this.markers.length; ++i)
+this.markers[i].clear()
+signalLater(this, "clear")
+}
+find(side, lineObj) {
+return this.primary.find(side, lineObj)
+}
+}
+eventMixin(SharedTextMarker)
+function markTextShared(doc, from, to, options, type) {
+options = copyObj(options)
+options.shared = false
+let markers = [markText(doc, from, to, options, type)], primary = markers[0]
+let widget = options.widgetNode
+linkedDocs(doc, doc => {
+if (widget) options.widgetNode = widget.cloneNode(true)
+markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type))
+for (let i = 0; i < doc.linked.length; ++i)
+if (doc.linked[i].isParent) return
+primary = lst(markers)
+})
+return new SharedTextMarker(markers, primary)
+}
+export function findSharedMarkers(doc) {
+return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), m => m.parent)
+}
+export function copySharedMarkers(doc, markers) {
+for (let i = 0; i < markers.length; i++) {
+let marker = markers[i], pos = marker.find()
+let mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to)
+if (cmp(mFrom, mTo)) {
+let subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type)
+marker.markers.push(subMark)
+subMark.parent = marker
+}
+}
+}
+export function detachSharedMarkers(markers) {
+for (let i = 0; i < markers.length; i++) {
+let marker = markers[i], linked = [marker.primary.doc]
+linkedDocs(marker.primary.doc, d => linked.push(d))
+for (let j = 0; j < marker.markers.length; j++) {
+let subMarker = marker.markers[j]
+if (indexOf(linked, subMarker.doc) == -1) {
+subMarker.parent = null
+marker.markers.splice(j--, 1)
+}
+}
+}
+}