summaryrefslogtreecommitdiff
path: root/help3/xhpeditor/cm/addon/search/search.js
blob: 118f1112f131c0faa8e505f039e708fae3f7e382 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

// Define search commands. Depends on dialog.js or another
// implementation of the openDialog method.

// Replace works a little oddly -- it will do the replace on the next
// Ctrl-G (or whatever is bound to findNext) press. You prevent a
// replace by making sure the match is no longer selected when hitting
// Ctrl-G.

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"), require("./searchcursor"), require("../dialog/dialog"));
  else if (typeof define == "function" && define.amd) // AMD
    define(["../../lib/codemirror", "./searchcursor", "../dialog/dialog"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
  "use strict";

  // default search panel location
  CodeMirror.defineOption("search", {bottom: false});

  function searchOverlay(query, caseInsensitive) {
    if (typeof query == "string")
      query = new RegExp(query.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&"), caseInsensitive ? "gi" : "g");
    else if (!query.global)
      query = new RegExp(query.source, query.ignoreCase ? "gi" : "g");

    return {token: function(stream) {
      query.lastIndex = stream.pos;
      var match = query.exec(stream.string);
      if (match && match.index == stream.pos) {
        stream.pos += match[0].length || 1;
        return "searching";
      } else if (match) {
        stream.pos = match.index;
      } else {
        stream.skipToEnd();
      }
    }};
  }

  function SearchState() {
    this.posFrom = this.posTo = this.lastQuery = this.query = null;
    this.overlay = null;
  }

  function getSearchState(cm) {
    return cm.state.search || (cm.state.search = new SearchState());
  }

  function queryCaseInsensitive(query) {
    return typeof query == "string" && query == query.toLowerCase();
  }

  function getSearchCursor(cm, query, pos) {
    // Heuristic: if the query string is all lowercase, do a case insensitive search.
    return cm.getSearchCursor(query, pos, {caseFold: queryCaseInsensitive(query), multiline: true});
  }

  function persistentDialog(cm, text, deflt, onEnter, onKeyDown) {
    cm.openDialog(text, onEnter, {
      value: deflt,
      selectValueOnOpen: true,
      closeOnEnter: false,
      onClose: function() { clearSearch(cm); },
      onKeyDown: onKeyDown,
      bottom: cm.options.search.bottom
    });
  }

  function dialog(cm, text, shortText, deflt, f) {
    if (cm.openDialog) cm.openDialog(text, f, {value: deflt, selectValueOnOpen: true, bottom: cm.options.search.bottom});
    else f(prompt(shortText, deflt));
  }

  function confirmDialog(cm, text, shortText, fs) {
    if (cm.openConfirm) cm.openConfirm(text, fs);
    else if (confirm(shortText)) fs[0]();
  }

  function parseString(string) {
    return string.replace(/\\([nrt\\])/g, function(match, ch) {
      if (ch == "n") return "\n"
      if (ch == "r") return "\r"
      if (ch == "t") return "\t"
      if (ch == "\\") return "\\"
      return match
    })
  }

  function parseQuery(query) {
    var isRE = query.match(/^\/(.*)\/([a-z]*)$/);
    if (isRE) {
      try { query = new RegExp(isRE[1], isRE[2].indexOf("i") == -1 ? "" : "i"); }
      catch(e) {} // Not a regular expression after all, do a string search
    } else {
      query = parseString(query)
    }
    if (typeof query == "string" ? query == "" : query.test(""))
      query = /x^/;
    return query;
  }

  function startSearch(cm, state, query) {
    state.queryText = query;
    state.query = parseQuery(query);
    cm.removeOverlay(state.overlay, queryCaseInsensitive(state.query));
    state.overlay = searchOverlay(state.query, queryCaseInsensitive(state.query));
    cm.addOverlay(state.overlay);
    if (cm.showMatchesOnScrollbar) {
      if (state.annotate) { state.annotate.clear(); state.annotate = null; }
      state.annotate = cm.showMatchesOnScrollbar(state.query, queryCaseInsensitive(state.query));
    }
  }

  function doSearch(cm, rev, persistent, immediate) {
    var state = getSearchState(cm);
    if (state.query) return findNext(cm, rev);
    var q = cm.getSelection() || state.lastQuery;
    if (q instanceof RegExp && q.source == "x^") q = null
    if (persistent && cm.openDialog) {
      var hiding = null
      var searchNext = function(query, event) {
        CodeMirror.e_stop(event);
        if (!query) return;
        if (query != state.queryText) {
          startSearch(cm, state, query);
          state.posFrom = state.posTo = cm.getCursor();
        }
        if (hiding) hiding.style.opacity = 1
        findNext(cm, event.shiftKey, function(_, to) {
          var dialog
          if (to.line < 3 && document.querySelector &&
              (dialog = cm.display.wrapper.querySelector(".CodeMirror-dialog")) &&
              dialog.getBoundingClientRect().bottom - 4 > cm.cursorCoords(to, "window").top)
            (hiding = dialog).style.opacity = .4
        })
      };
      persistentDialog(cm, getQueryDialog(cm), q, searchNext, function(event, query) {
        var keyName = CodeMirror.keyName(event)
        var extra = cm.getOption('extraKeys'), cmd = (extra && extra[keyName]) || CodeMirror.keyMap[cm.getOption("keyMap")][keyName]
        if (cmd == "findNext" || cmd == "findPrev" ||
          cmd == "findPersistentNext" || cmd == "findPersistentPrev") {
          CodeMirror.e_stop(event);
          startSearch(cm, getSearchState(cm), query);
          cm.execCommand(cmd);
        } else if (cmd == "find" || cmd == "findPersistent") {
          CodeMirror.e_stop(event);
          searchNext(query, event);
        }
      });
      if (immediate && q) {
        startSearch(cm, state, q);
        findNext(cm, rev);
      }
    } else {
      dialog(cm, getQueryDialog(cm), "Search for:", q, function(query) {
        if (query && !state.query) cm.operation(function() {
          startSearch(cm, state, query);
          state.posFrom = state.posTo = cm.getCursor();
          findNext(cm, rev);
        });
      });
    }
  }

  function findNext(cm, rev, callback) {cm.operation(function() {
    var state = getSearchState(cm);
    var cursor = getSearchCursor(cm, state.query, rev ? state.posFrom : state.posTo);
    if (!cursor.find(rev)) {
      cursor = getSearchCursor(cm, state.query, rev ? CodeMirror.Pos(cm.lastLine()) : CodeMirror.Pos(cm.firstLine(), 0));
      if (!cursor.find(rev)) return;
    }
    cm.setSelection(cursor.from(), cursor.to());
    cm.scrollIntoView({from: cursor.from(), to: cursor.to()}, 20);
    state.posFrom = cursor.from(); state.posTo = cursor.to();
    if (callback) callback(cursor.from(), cursor.to())
  });}

  function clearSearch(cm) {cm.operation(function() {
    var state = getSearchState(cm);
    state.lastQuery = state.query;
    if (!state.query) return;
    state.query = state.queryText = null;
    cm.removeOverlay(state.overlay);
    if (state.annotate) { state.annotate.clear(); state.annotate = null; }
  });}


  function getQueryDialog(cm)  {
    return '<span class="CodeMirror-search-label">' + cm.phrase("Search:") + '</span> <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">' + cm.phrase("(Use /re/ syntax for regexp search)") + '</span>';
  }
  function getReplaceQueryDialog(cm) {
    return ' <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">' + cm.phrase("(Use /re/ syntax for regexp search)") + '</span>';
  }
  function getReplacementQueryDialog(cm) {
    return '<span class="CodeMirror-search-label">' + cm.phrase("With:") + '</span> <input type="text" style="width: 10em" class="CodeMirror-search-field"/>';
  }
  function getDoReplaceConfirm(cm) {
    return '<span class="CodeMirror-search-label">' + cm.phrase("Replace?") + '</span> <button>' + cm.phrase("Yes") + '</button> <button>' + cm.phrase("No") + '</button> <button>' + cm.phrase("All") + '</button> <button>' + cm.phrase("Stop") + '</button> ';
  }

  function replaceAll(cm, query, text) {
    cm.operation(function() {
      for (var cursor = getSearchCursor(cm, query); cursor.findNext();) {
        if (typeof query != "string") {
          var match = cm.getRange(cursor.from(), cursor.to()).match(query);
          cursor.replace(text.replace(/\$(\d)/g, function(_, i) {return match[i];}));
        } else cursor.replace(text);
      }
    });
  }

  function replace(cm, all) {
    if (cm.getOption("readOnly")) return;
    var query = cm.getSelection() || getSearchState(cm).lastQuery;
    var dialogText = '<span class="CodeMirror-search-label">' + (all ? cm.phrase("Replace all:") : cm.phrase("Replace:")) + '</span>';
    dialog(cm, dialogText + getReplaceQueryDialog(cm), dialogText, query, function(query) {
      if (!query) return;
      query = parseQuery(query);
      dialog(cm, getReplacementQueryDialog(cm), cm.phrase("Replace with:"), "", function(text) {
        text = parseString(text)
        if (all) {
          replaceAll(cm, query, text)
        } else {
          clearSearch(cm);
          var cursor = getSearchCursor(cm, query, cm.getCursor("from"));
          var advance = function() {
            var start = cursor.from(), match;
            if (!(match = cursor.findNext())) {
              cursor = getSearchCursor(cm, query);
              if (!(match = cursor.findNext()) ||
                  (start && cursor.from().line == start.line && cursor.from().ch == start.ch)) return;
            }
            cm.setSelection(cursor.from(), cursor.to());
            cm.scrollIntoView({from: cursor.from(), to: cursor.to()});
            confirmDialog(cm, getDoReplaceConfirm(cm), cm.phrase("Replace?"),
                          [function() {doReplace(match);}, advance,
                           function() {replaceAll(cm, query, text)}]);
          };
          var doReplace = function(match) {
            cursor.replace(typeof query == "string" ? text :
                           text.replace(/\$(\d)/g, function(_, i) {return match[i];}));
            advance();
          };
          advance();
        }
      });
    });
  }

  CodeMirror.commands.find = function(cm) {clearSearch(cm); doSearch(cm);};
  CodeMirror.commands.findPersistent = function(cm) {clearSearch(cm); doSearch(cm, false, true);};
  CodeMirror.commands.findPersistentNext = function(cm) {doSearch(cm, false, true, true);};
  CodeMirror.commands.findPersistentPrev = function(cm) {doSearch(cm, true, true, true);};
  CodeMirror.commands.findNext = doSearch;
  CodeMirror.commands.findPrev = function(cm) {doSearch(cm, true);};
  CodeMirror.commands.clearSearch = clearSearch;
  CodeMirror.commands.replace = replace;
  CodeMirror.commands.replaceAll = function(cm) {replace(cm, true);};
});