File modules/editor/codemirror/src/model/selection.min.js

Last commit: Tue May 22 22:39:55 2018 +0200	Jan Dankert	Fix für PHP 7.2: 'Object' darf nun nicht mehr als Klassennamen verwendet werden. AUCH NICHT IN EINEM NAMESPACE! WTF, wozu habe ich das in einen verfickten Namespace gepackt? Wozu soll der sonst da sein??? Amateure. Daher nun notgedrungen unbenannt in 'BaseObject'.


     1 import { cmp, copyPos, equalCursorPos, maxPos, minPos } from "../line/pos.js"
     2 import { indexOf } from "../util/misc.js"
     3 
     4 // Selection objects are immutable. A new one is created every time
     5 // the selection changes. A selection is one or more non-overlapping
     6 // (and non-touching) ranges, sorted, and an integer that indicates
     7 // which one is the primary selection (the one that's scrolled into
     8 // view, that getCursor returns, etc).
     9 export class Selection {
    10   constructor(ranges, primIndex) {
    11     this.ranges = ranges
    12     this.primIndex = primIndex
    13   }
    14 
    15   primary() { return this.ranges[this.primIndex] }
    16 
    17   equals(other) {
    18     if (other == this) return true
    19     if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) return false
    20     for (let i = 0; i < this.ranges.length; i++) {
    21       let here = this.ranges[i], there = other.ranges[i]
    22       if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) return false
    23     }
    24     return true
    25   }
    26 
    27   deepCopy() {
    28     let out = []
    29     for (let i = 0; i < this.ranges.length; i++)
    30       out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head))
    31     return new Selection(out, this.primIndex)
    32   }
    33 
    34   somethingSelected() {
    35     for (let i = 0; i < this.ranges.length; i++)
    36       if (!this.ranges[i].empty()) return true
    37     return false
    38   }
    39 
    40   contains(pos, end) {
    41     if (!end) end = pos
    42     for (let i = 0; i < this.ranges.length; i++) {
    43       let range = this.ranges[i]
    44       if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
    45         return i
    46     }
    47     return -1
    48   }
    49 }
    50 
    51 export class Range {
    52   constructor(anchor, head) {
    53     this.anchor = anchor; this.head = head
    54   }
    55 
    56   from() { return minPos(this.anchor, this.head) }
    57   to() { return maxPos(this.anchor, this.head) }
    58   empty() { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch }
    59 }
    60 
    61 // Take an unsorted, potentially overlapping set of ranges, and
    62 // build a selection out of it. 'Consumes' ranges array (modifying
    63 // it).
    64 export function normalizeSelection(ranges, primIndex) {
    65   let prim = ranges[primIndex]
    66   ranges.sort((a, b) => cmp(a.from(), b.from()))
    67   primIndex = indexOf(ranges, prim)
    68   for (let i = 1; i < ranges.length; i++) {
    69     let cur = ranges[i], prev = ranges[i - 1]
    70     if (cmp(prev.to(), cur.from()) >= 0) {
    71       let from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to())
    72       let inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head
    73       if (i <= primIndex) --primIndex
    74       ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to))
    75     }
    76   }
    77   return new Selection(ranges, primIndex)
    78 }
    79 
    80 export function simpleSelection(anchor, head) {
    81   return new Selection([new Range(anchor, head || anchor)], 0)
    82 }



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Tue, 22 May 2018 22:39:55 +0200	Jan Dankert	Fix für PHP 7.2: 'Object' darf nun nicht mehr als Klassennamen verwendet werden. AUCH NICHT IN EINEM NAMESPACE! WTF, wozu habe ich das in einen verfickten Namespace gepackt? Wozu soll der sonst da sein??? Amateure. Daher nun notgedrungen unbenannt in 'BaseObject'.