hedgedoc/public/vendor/codemirror/addon/search/jump-to-line.js

49 lines
1.9 KiB
JavaScript

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
// Defines jumpToLine command. Uses dialog.js if present.
(function(mod) {
if (typeof exports == "object" && typeof module == "object") // CommonJS
mod(require("../../lib/codemirror"), require("../dialog/dialog"));
else if (typeof define == "function" && define.amd) // AMD
define(["../../lib/codemirror", "../dialog/dialog"], mod);
else // Plain browser env
mod(CodeMirror);
})(function(CodeMirror) {
"use strict";
function dialog(cm, text, shortText, deflt, f) {
if (cm.openDialog) cm.openDialog(text, f, {value: deflt, selectValueOnOpen: true});
else f(prompt(shortText, deflt));
}
var jumpDialog =
'Jump to line: <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">(Use line:column or scroll% syntax)</span>';
function interpretLine(cm, string) {
var num = Number(string)
if (/^[-+]/.test(string)) return cm.getCursor().line + num
else return num - 1
}
CodeMirror.commands.jumpToLine = function(cm) {
var cur = cm.getCursor();
dialog(cm, jumpDialog, "Jump to line:", (cur.line + 1) + ":" + cur.ch, function(posStr) {
if (!posStr) return;
var match;
if (match = /^\s*([\+\-]?\d+)\s*\:\s*(\d+)\s*$/.exec(posStr)) {
cm.setCursor(interpretLine(cm, match[1]), Number(match[2]))
} else if (match = /^\s*([\+\-]?\d+(\.\d+)?)\%\s*/.exec(posStr)) {
var line = Math.round(cm.lineCount() * Number(match[1]) / 100);
if (/^[-+]/.test(match[1])) line = cur.line + line + 1;
cm.setCursor(line - 1, cur.ch);
} else if (match = /^\s*\:?\s*([\+\-]?\d+)\s*/.exec(posStr)) {
cm.setCursor(interpretLine(cm, match[1]), cur.ch);
}
});
};
CodeMirror.keyMap["default"]["Alt-G"] = "jumpToLine";
});