(cm, range, output)
| 51 | |
| 52 | // Draws the given range as a highlighted selection |
| 53 | function drawSelectionRange(cm, range, output) { |
| 54 | let display = cm.display, doc = cm.doc |
| 55 | let fragment = document.createDocumentFragment() |
| 56 | let padding = paddingH(cm.display), leftSide = padding.left |
| 57 | let rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right |
| 58 | let docLTR = doc.direction == "ltr" |
| 59 | |
| 60 | function add(left, top, width, bottom) { |
| 61 | if (top < 0) top = 0 |
| 62 | top = Math.round(top) |
| 63 | bottom = Math.round(bottom) |
| 64 | fragment.appendChild(elt("div", null, "CodeMirror-selected", `position: absolute; left: ${left}px; |
| 65 | top: ${top}px; width: ${width == null ? rightSide - left : width}px; |
| 66 | height: ${bottom - top}px`)) |
| 67 | } |
| 68 | |
| 69 | function drawForLine(line, fromArg, toArg) { |
| 70 | let lineObj = getLine(doc, line) |
| 71 | let lineLen = lineObj.text.length |
| 72 | let start, end |
| 73 | function coords(ch, bias) { |
| 74 | return charCoords(cm, Pos(line, ch), "div", lineObj, bias) |
| 75 | } |
| 76 | |
| 77 | function wrapX(pos, dir, side) { |
| 78 | let extent = wrappedLineExtentChar(cm, lineObj, null, pos) |
| 79 | let prop = (dir == "ltr") == (side == "after") ? "left" : "right" |
| 80 | let ch = side == "after" ? extent.begin : extent.end - (/\s/.test(lineObj.text.charAt(extent.end - 1)) ? 2 : 1) |
| 81 | return coords(ch, prop)[prop] |
| 82 | } |
| 83 | |
| 84 | let order = getOrder(lineObj, doc.direction) |
| 85 | iterateBidiSections(order, fromArg || 0, toArg == null ? lineLen : toArg, (from, to, dir, i) => { |
| 86 | let ltr = dir == "ltr" |
| 87 | let fromPos = coords(from, ltr ? "left" : "right") |
| 88 | let toPos = coords(to - 1, ltr ? "right" : "left") |
| 89 | |
| 90 | let openStart = fromArg == null && from == 0, openEnd = toArg == null && to == lineLen |
| 91 | let first = i == 0, last = !order || i == order.length - 1 |
| 92 | if (toPos.top - fromPos.top <= 3) { // Single line |
| 93 | let openLeft = (docLTR ? openStart : openEnd) && first |
| 94 | let openRight = (docLTR ? openEnd : openStart) && last |
| 95 | let left = openLeft ? leftSide : (ltr ? fromPos : toPos).left |
| 96 | let right = openRight ? rightSide : (ltr ? toPos : fromPos).right |
| 97 | add(left, fromPos.top, right - left, fromPos.bottom) |
| 98 | } else { // Multiple lines |
| 99 | let topLeft, topRight, botLeft, botRight |
| 100 | if (ltr) { |
| 101 | topLeft = docLTR && openStart && first ? leftSide : fromPos.left |
| 102 | topRight = docLTR ? rightSide : wrapX(from, dir, "before") |
| 103 | botLeft = docLTR ? leftSide : wrapX(to, dir, "after") |
| 104 | botRight = docLTR && openEnd && last ? rightSide : toPos.right |
| 105 | } else { |
| 106 | topLeft = !docLTR ? leftSide : wrapX(from, dir, "before") |
| 107 | topRight = !docLTR && openStart && first ? rightSide : fromPos.right |
| 108 | botLeft = !docLTR && openEnd && last ? leftSide : toPos.left |
| 109 | botRight = !docLTR ? rightSide : wrapX(to, dir, "after") |
| 110 | } |
no test coverage detected