|
| 1 | +// CodeMirror, copyright (c) by Marijn Haverbeke and others |
| 2 | +// Distributed under an MIT license: https://codemirror.net/LICENSE |
| 3 | + |
| 4 | +// Utility function that allows modes to be combined. The mode given |
| 5 | +// as the base argument takes care of most of the normal mode |
| 6 | +// functionality, but a second (typically simple) mode is used, which |
| 7 | +// can override the style of text. Both modes get to parse all of the |
| 8 | +// text, but when both assign a non-null style to a piece of code, the |
| 9 | +// overlay wins, unless the combine argument was true and not overridden, |
| 10 | +// or state.overlay.combineTokens was true, in which case the styles are |
| 11 | +// combined. |
| 12 | + |
| 13 | +(function (mod) { |
| 14 | + mod(window.CodeMirror); |
| 15 | +})(function (CodeMirror) { |
| 16 | + 'use strict'; |
| 17 | + |
| 18 | + CodeMirror.customOverlayMode = function (base, overlay, combine) { |
| 19 | + return { |
| 20 | + startState: function () { |
| 21 | + return { |
| 22 | + base: CodeMirror.startState(base), |
| 23 | + overlay: CodeMirror.startState(overlay), |
| 24 | + basePos: 0, |
| 25 | + baseCur: null, |
| 26 | + overlayPos: 0, |
| 27 | + overlayCur: null, |
| 28 | + streamSeen: null, |
| 29 | + }; |
| 30 | + }, |
| 31 | + copyState: function (state) { |
| 32 | + return { |
| 33 | + base: CodeMirror.copyState(base, state.base), |
| 34 | + overlay: CodeMirror.copyState(overlay, state.overlay), |
| 35 | + basePos: state.basePos, |
| 36 | + baseCur: null, |
| 37 | + overlayPos: state.overlayPos, |
| 38 | + overlayCur: null, |
| 39 | + }; |
| 40 | + }, |
| 41 | + |
| 42 | + token: function (stream, state) { |
| 43 | + if (stream != state.streamSeen || Math.min(state.basePos, state.overlayPos) < stream.start) { |
| 44 | + state.streamSeen = stream; |
| 45 | + state.basePos = state.overlayPos = stream.start; |
| 46 | + } |
| 47 | + |
| 48 | + if (stream.start == state.basePos) { |
| 49 | + state.baseCur = base.token(stream, state.base); |
| 50 | + state.basePos = stream.pos; |
| 51 | + } |
| 52 | + if (stream.start == state.overlayPos) { |
| 53 | + stream.pos = stream.start; |
| 54 | + state.overlayCur = overlay.token(stream, state.overlay); |
| 55 | + state.overlayPos = stream.pos; |
| 56 | + } |
| 57 | + stream.pos = Math.min(state.basePos, state.overlayPos); |
| 58 | + |
| 59 | + // // Edge case for codeblocks in templater mode |
| 60 | + // if ( |
| 61 | + // state.baseCur && |
| 62 | + // state.overlayCur && |
| 63 | + // state.baseCur.contains("line-HyperMD-codeblock") |
| 64 | + // ) { |
| 65 | + // state.overlayCur = state.overlayCur.replace( |
| 66 | + // "line-templater-inline", |
| 67 | + // "" |
| 68 | + // ); |
| 69 | + // state.overlayCur += ` line-background-HyperMD-codeblock-bg`; |
| 70 | + // } |
| 71 | + |
| 72 | + // state.overlay.combineTokens always takes precedence over combine, |
| 73 | + // unless set to null |
| 74 | + if (state.overlayCur == null) return state.baseCur; |
| 75 | + else if ((state.baseCur != null && state.overlay.combineTokens) || (combine && state.overlay.combineTokens == null)) return state.baseCur + ' ' + state.overlayCur; |
| 76 | + else return state.overlayCur; |
| 77 | + }, |
| 78 | + |
| 79 | + indent: |
| 80 | + base.indent && |
| 81 | + function (state, textAfter, line) { |
| 82 | + return base.indent(state.base, textAfter, line); |
| 83 | + }, |
| 84 | + electricChars: base.electricChars, |
| 85 | + |
| 86 | + innerMode: function (state) { |
| 87 | + return { state: state.base, mode: base }; |
| 88 | + }, |
| 89 | + |
| 90 | + blankLine: function (state) { |
| 91 | + var baseToken, overlayToken; |
| 92 | + if (base.blankLine) baseToken = base.blankLine(state.base); |
| 93 | + if (overlay.blankLine) overlayToken = overlay.blankLine(state.overlay); |
| 94 | + |
| 95 | + return overlayToken == null ? baseToken : combine && baseToken != null ? baseToken + ' ' + overlayToken : overlayToken; |
| 96 | + }, |
| 97 | + }; |
| 98 | + }; |
| 99 | +}); |
0 commit comments