CasperSecurity
import { buildLineContent } from "../line/line_data.js"
import { lineNumberFor } from "../line/utils_line.js"
import { ie, ie_version } from "../util/browser.js"
import { elt, classTest } from "../util/dom.js"
import { signalLater } from "../util/operation_group.js"
// When an aspect of a line changes, a string is added to
// lineView.changes. This updates the relevant part of the line's
// DOM structure.
export function updateLineForChanges(cm, lineView, lineN, dims) {
for (let j = 0; j < lineView.changes.length; j++) {
let type = lineView.changes[j]
if (type == "text") updateLineText(cm, lineView)
else if (type == "gutter") updateLineGutter(cm, lineView, lineN, dims)
else if (type == "class") updateLineClasses(cm, lineView)
else if (type == "widget") updateLineWidgets(cm, lineView, dims)
}
lineView.changes = null
}
// Lines with gutter elements, widgets or a background class need to
// be wrapped, and have the extra elements added to the wrapper div
function ensureLineWrapped(lineView) {
if (lineView.node == lineView.text) {
lineView.node = elt("div", null, null, "position: relative")
if (lineView.text.parentNode)
lineView.text.parentNode.replaceChild(lineView.node, lineView.text)
lineView.node.appendChild(lineView.text)
if (ie && ie_version < 8) lineView.node.style.zIndex = 2
}
return lineView.node
}
function updateLineBackground(cm, lineView) {
let cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass
if (cls) cls += " CodeMirror-linebackground"
if (lineView.background) {
if (cls) lineView.background.className = cls
else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null }
} else if (cls) {
let wrap = ensureLineWrapped(lineView)
lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild)
cm.display.input.setUneditable(lineView.background)
}
}
// Wrapper around buildLineContent which will reuse the structure
// in display.externalMeasured when possible.
function getLineContent(cm, lineView) {
let ext = cm.display.externalMeasured
if (ext && ext.line == lineView.line) {
cm.display.externalMeasured = null
lineView.measure = ext.measure
return ext.built
}
return buildLineContent(cm, lineView)
}
// Redraw the line's text. Interacts with the background and text
// classes because the mode may output tokens that influence these
// classes.
function updateLineText(cm, lineView) {
let cls = lineView.text.className
let built = getLineContent(cm, lineView)
if (lineView.text == lineView.node) lineView.node = built.pre
lineView.text.parentNode.replaceChild(built.pre, lineView.text)
lineView.text = built.pre
if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
lineView.bgClass = built.bgClass
lineView.textClass = built.textClass
updateLineClasses(cm, lineView)
} else if (cls) {
lineView.text.className = cls
}
}
function updateLineClasses(cm, lineView) {
updateLineBackground(cm, lineView)
if (lineView.line.wrapClass)
ensureLineWrapped(lineView).className = lineView.line.wrapClass
else if (lineView.node != lineView.text)
lineView.node.className = ""
let textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass
lineView.text.className = textClass || ""
}
function updateLineGutter(cm, lineView, lineN, dims) {
if (lineView.gutter) {
lineView.node.removeChild(lineView.gutter)
lineView.gutter = null
}
if (lineView.gutterBackground) {
lineView.node.removeChild(lineView.gutterBackground)
lineView.gutterBackground = null
}
if (lineView.line.gutterClass) {
let wrap = ensureLineWrapped(lineView)
lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass,
`left: ${cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth}px; width: ${dims.gutterTotalWidth}px`)
cm.display.input.setUneditable(lineView.gutterBackground)
wrap.insertBefore(lineView.gutterBackground, lineView.text)
}
let markers = lineView.line.gutterMarkers
if (cm.options.lineNumbers || markers) {
let wrap = ensureLineWrapped(lineView)
let gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", `left: ${cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth}px`)
gutterWrap.setAttribute("aria-hidden", "true")
cm.display.input.setUneditable(gutterWrap)
wrap.insertBefore(gutterWrap, lineView.text)
if (lineView.line.gutterClass)
gutterWrap.className += " " + lineView.line.gutterClass
if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
lineView.lineNumber = gutterWrap.appendChild(
elt("div", lineNumberFor(cm.options, lineN),
"CodeMirror-linenumber CodeMirror-gutter-elt",
`left: ${dims.gutterLeft["CodeMirror-linenumbers"]}px; width: ${cm.display.lineNumInnerWidth}px`))
if (markers) for (let k = 0; k < cm.display.gutterSpecs.length; ++k) {
let id = cm.display.gutterSpecs[k].className, found = markers.hasOwnProperty(id) && markers[id]
if (found)
gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt",
`left: ${dims.gutterLeft[id]}px; width: ${dims.gutterWidth[id]}px`))
}
}
}
function updateLineWidgets(cm, lineView, dims) {
if (lineView.alignable) lineView.alignable = null
let isWidget = classTest("CodeMirror-linewidget")
for (let node = lineView.node.firstChild, next; node; node = next) {
next = node.nextSibling
if (isWidget.test(node.className)) lineView.node.removeChild(node)
}
insertLineWidgets(cm, lineView, dims)
}
// Build a line's DOM representation from scratch
export function buildLineElement(cm, lineView, lineN, dims) {
let built = getLineContent(cm, lineView)
lineView.text = lineView.node = built.pre
if (built.bgClass) lineView.bgClass = built.bgClass
if (built.textClass) lineView.textClass = built.textClass
updateLineClasses(cm, lineView)
updateLineGutter(cm, lineView, lineN, dims)
insertLineWidgets(cm, lineView, dims)
return lineView.node
}
// A lineView may contain multiple logical lines (when merged by
// collapsed spans). The widgets for all of them need to be drawn.
function insertLineWidgets(cm, lineView, dims) {
insertLineWidgetsFor(cm, lineView.line, lineView, dims, true)
if (lineView.rest) for (let i = 0; i < lineView.rest.length; i++)
insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false)
}
function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {
if (!line.widgets) return
let wrap = ensureLineWrapped(lineView)
for (let i = 0, ws = line.widgets; i < ws.length; ++i) {
let widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget" + (widget.className ? " " + widget.className : ""))
if (!widget.handleMouseEvents) node.setAttribute("cm-ignore-events", "true")
positionLineWidget(widget, node, lineView, dims)
cm.display.input.setUneditable(node)
if (allowAbove && widget.above)
wrap.insertBefore(node, lineView.gutter || lineView.text)
else
wrap.appendChild(node)
signalLater(widget, "redraw")
}
}
function positionLineWidget(widget, node, lineView, dims) {
if (widget.noHScroll) {
;(lineView.alignable || (lineView.alignable = [])).push(node)
let width = dims.wrapperWidth
node.style.left = dims.fixedPos + "px"
if (!widget.coverGutter) {
width -= dims.gutterTotalWidth
node.style.paddingLeft = dims.gutterTotalWidth + "px"
}
node.style.width = width + "px"
}
if (widget.coverGutter) {
node.style.zIndex = 5
node.style.position = "relative"
if (!widget.noHScroll) node.style.marginLeft = -dims.gutterTotalWidth + "px"
}
}