// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://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";
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, queryCaseInsensitive(query));
}
function persistentDialog(cm, text, deflt, f) {
cm.openDialog(text, f, {
value: deflt,
selectValueOnOpen: true,
closeOnEnter: false,
onClose: function() { clearSearch(cm); }
});
}
function dialog(cm, text, shortText, deflt, f) {
if (cm.openDialog) cm.openDialog(text, f, {value: deflt, selectValueOnOpen: true});
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(/\\(.)/g, function(_, ch) {
if (ch == "n") return "\n"
if (ch == "r") return "\r"
return ch
})
}
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;
}
var queryDialog =
'Search: <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">(Use /re/ syntax for regexp search)</span>';
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) {
var state = getSearchState(cm);
if (state.query) return findNext(cm, rev);
var q = cm.getSelection() || state.lastQuery;
if (persistent && cm.openDialog) {
var hiding = null
persistentDialog(cm, queryDialog, q, function(query, event) {
CodeMirror.e_stop(event);
if (!query) return;
if (query != state.queryText) startSearch(cm, state, query);
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
})
});
} else {
dialog(cm, queryDialog, "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; }
});}
var replaceQueryDialog =
' <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">(Use /re/ syntax for regexp search)</span>';
var replacementQueryDialog = 'With: <input type="text" style="width: 10em" class="CodeMirror-search-field"/>';
var doReplaceConfirm = "Replace? <button>Yes</button> <button>No</button> <button>All</button> <button>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 = all ? "Replace all:" : "Replace:"
dialog(cm, dialogText + replaceQueryDialog, dialogText, query, function(query) {
if (!query) return;
query = parseQuery(query);
dialog(cm, replacementQueryDialog, "Replace with:", "", function(text) {
text = parseString(text)
if (all) {
replaceAll(cm, query, text)
} else {
clearSearch(cm);
var cursor = getSearchCursor(cm, query, cm.getCursor());
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, doReplaceConfirm, "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.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);};
});
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