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2 |
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3 |
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4 | (function(mod) {
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5 | if (typeof exports == "object" && typeof module == "object")
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6 | mod(require("../../lib/codemirror"), require("./searchcursor"), require("../scroll/annotatescrollbar"));
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7 | else if (typeof define == "function" && define.amd)
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8 | define(["../../lib/codemirror", "./searchcursor", "../scroll/annotatescrollbar"], mod);
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9 | else
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10 | mod(CodeMirror);
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11 | })(function(CodeMirror) {
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12 | "use strict";
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13 |
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14 | CodeMirror.defineExtension("showMatchesOnScrollbar", function(query, caseFold, options) {
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15 | if (typeof options == "string") options = {className: options};
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16 | if (!options) options = {};
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17 | return new SearchAnnotation(this, query, caseFold, options);
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18 | });
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19 |
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20 | function SearchAnnotation(cm, query, caseFold, options) {
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21 | this.cm = cm;
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22 | this.options = options;
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23 | var annotateOptions = {listenForChanges: false};
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24 | for (var prop in options) annotateOptions[prop] = options[prop];
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25 | if (!annotateOptions.className) annotateOptions.className = "CodeMirror-search-match";
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26 | this.annotation = cm.annotateScrollbar(annotateOptions);
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27 | this.query = query;
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28 | this.caseFold = caseFold;
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29 | this.gap = {from: cm.firstLine(), to: cm.lastLine() + 1};
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30 | this.matches = [];
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31 | this.update = null;
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32 |
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33 | this.findMatches();
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34 | this.annotation.update(this.matches);
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35 |
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36 | var self = this;
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37 | cm.on("change", this.changeHandler = function(_cm, change) { self.onChange(change); });
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38 | }
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39 |
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40 | var MAX_MATCHES = 1000;
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41 |
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42 | SearchAnnotation.prototype.findMatches = function() {
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43 | if (!this.gap) return;
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44 | for (var i = 0; i < this.matches.length; i++) {
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45 | var match = this.matches[i];
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46 | if (match.from.line >= this.gap.to) break;
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47 | if (match.to.line >= this.gap.from) this.matches.splice(i--, 1);
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48 | }
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49 | var cursor = this.cm.getSearchCursor(this.query, CodeMirror.Pos(this.gap.from, 0), {caseFold: this.caseFold, multiline: this.options.multiline});
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50 | var maxMatches = this.options && this.options.maxMatches || MAX_MATCHES;
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51 | while (cursor.findNext()) {
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52 | var match = {from: cursor.from(), to: cursor.to()};
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53 | if (match.from.line >= this.gap.to) break;
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54 | this.matches.splice(i++, 0, match);
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55 | if (this.matches.length > maxMatches) break;
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56 | }
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57 | this.gap = null;
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58 | };
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59 |
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60 | function offsetLine(line, changeStart, sizeChange) {
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61 | if (line <= changeStart) return line;
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62 | return Math.max(changeStart, line + sizeChange);
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63 | }
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64 |
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65 | SearchAnnotation.prototype.onChange = function(change) {
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66 | var startLine = change.from.line;
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67 | var endLine = CodeMirror.changeEnd(change).line;
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68 | var sizeChange = endLine - change.to.line;
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69 | if (this.gap) {
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70 | this.gap.from = Math.min(offsetLine(this.gap.from, startLine, sizeChange), change.from.line);
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71 | this.gap.to = Math.max(offsetLine(this.gap.to, startLine, sizeChange), change.from.line);
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72 | } else {
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73 | this.gap = {from: change.from.line, to: endLine + 1};
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74 | }
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75 |
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76 | if (sizeChange) for (var i = 0; i < this.matches.length; i++) {
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77 | var match = this.matches[i];
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78 | var newFrom = offsetLine(match.from.line, startLine, sizeChange);
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79 | if (newFrom != match.from.line) match.from = CodeMirror.Pos(newFrom, match.from.ch);
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80 | var newTo = offsetLine(match.to.line, startLine, sizeChange);
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81 | if (newTo != match.to.line) match.to = CodeMirror.Pos(newTo, match.to.ch);
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82 | }
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83 | clearTimeout(this.update);
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84 | var self = this;
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85 | this.update = setTimeout(function() { self.updateAfterChange(); }, 250);
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86 | };
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87 |
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88 | SearchAnnotation.prototype.updateAfterChange = function() {
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89 | this.findMatches();
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90 | this.annotation.update(this.matches);
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91 | };
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92 |
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93 | SearchAnnotation.prototype.clear = function() {
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94 | this.cm.off("change", this.changeHandler);
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95 | this.annotation.clear();
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96 | };
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97 | });
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