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cryptpad/www/common/sframe-common-codemirror.js

539 lines
20 KiB
JavaScript

define([
'jquery',
'/common/modes.js',
'/common/themes.js',
'/customize/messages.js',
'/common/common-ui-elements.js',
'/common/common-hash.js',
'/common/common-util.js',
'/common/text-cursor.js',
'/bower_components/chainpad/chainpad.dist.js',
], function ($, Modes, Themes, Messages, UIElements, Hash, Util, TextCursor, ChainPad) {
var module = {};
var cursorToPos = function(cursor, oldText) {
var cLine = cursor.line;
var cCh = cursor.ch;
var pos = 0;
var textLines = oldText.split("\n");
for (var line = 0; line <= cLine; line++) {
if(line < cLine) {
pos += textLines[line].length+1;
}
else if(line === cLine) {
pos += cCh;
}
}
return pos;
};
var posToCursor = function(position, newText) {
var cursor = {
line: 0,
ch: 0
};
var textLines = newText.substr(0, position).split("\n");
cursor.line = textLines.length - 1;
cursor.ch = textLines[cursor.line].length;
return cursor;
};
module.getContentExtension = function (mode) {
var ext = Modes.extensionOf(mode);
return ext !== undefined ? ext : '.txt';
};
module.fileExporter = function (content) {
return new Blob([ content ], { type: 'text/plain;charset=utf-8' });
};
module.setValueAndCursor = function (editor, oldDoc, remoteDoc) {
editor._noCursorUpdate = true;
var scroll = editor.getScrollInfo();
//get old cursor here
var oldCursor = {};
oldCursor.selectionStart = cursorToPos(editor.getCursor('from'), oldDoc);
oldCursor.selectionEnd = cursorToPos(editor.getCursor('to'), oldDoc);
editor.setValue(remoteDoc);
editor.save();
var ops = ChainPad.Diff.diff(oldDoc, remoteDoc);
var selects = ['selectionStart', 'selectionEnd'].map(function (attr) {
return TextCursor.transformCursor(oldCursor[attr], ops);
});
editor._noCursorUpdate = false;
if(selects[0] === selects[1]) {
editor.setCursor(posToCursor(selects[0], remoteDoc));
}
else {
editor.setSelection(posToCursor(selects[0], remoteDoc), posToCursor(selects[1], remoteDoc));
}
editor.scrollTo(scroll.left, scroll.top);
};
module.getHeadingText = function (editor) {
var lines = editor.getValue().split(/\n/);
var text = '';
lines.some(function (line) {
// lines including a c-style comment are also valuable
var clike = /^\s*(\/\*|\/\/)(.*)?(\*\/)*$/;
if (clike.test(line)) {
line.replace(clike, function (a, one, two) {
if (!(two && two.replace)) { return; }
text = two.replace(/\*\/\s*$/, '').trim();
});
return true;
}
// lisps?
var lispy = /^\s*(;|#\|)+(.*?)$/;
if (lispy.test(line)) {
line.replace(lispy, function (a, one, two) {
text = two;
});
return true;
}
// lines beginning with a hash are potentially valuable
// works for markdown, python, bash, etc.
var hash = /^#+(.*?)$/;
var hashAndLink = /^#+\s*\[(.*?)\]\(.*\)\s*$/;
if (hash.test(line)) {
// test for link inside the title, and set text just to the name of the link
if (hashAndLink.test(line)) {
line.replace(hashAndLink, function (a, one) {
text = Util.stripTags(one);
});
return true;
}
line.replace(hash, function (a, one) {
text = Util.stripTags(one);
});
return true;
}
// TODO make one more pass for multiline comments
});
return text.trim();
};
module.create = function (defaultMode, CMeditor) {
var exp = {};
var CodeMirror = exp.CodeMirror = CMeditor;
CodeMirror.modeURL = "cm/mode/%N/%N";
var $pad = $('#pad-iframe');
var $textarea = exp.$textarea = $('#editor1');
if (!$textarea.length) { $textarea = exp.$textarea = $pad.contents().find('#editor1'); }
var Title;
var onLocal = function () {};
var $rightside;
var $drawer;
exp.init = function (local, title, toolbar) {
if (typeof local === "function") {
onLocal = local;
}
Title = title;
$rightside = toolbar.$rightside;
$drawer = toolbar.$drawer;
};
var editor = exp.editor = CMeditor.fromTextArea($textarea[0], {
lineNumbers: true,
lineWrapping: true,
autoCloseBrackets: true,
matchBrackets : true,
showTrailingSpace : true,
styleActiveLine : true,
search: true,
inputStyle: 'contenteditable',
highlightSelectionMatches: {showToken: /\w+/},
extraKeys: {"Shift-Ctrl-R": undefined},
foldGutter: true,
gutters: ["CodeMirror-linenumbers", "CodeMirror-foldgutter"],
mode: defaultMode || "javascript",
readOnly: true
});
editor.focus();
var setMode = exp.setMode = function (mode, cb) {
exp.highlightMode = mode;
if (mode === 'markdown') { mode = 'gfm'; }
if (/text\/x/.test(mode)) {
CMeditor.autoLoadMode(editor, 'clike');
editor.setOption('mode', mode);
} else {
if (mode !== "text") {
CMeditor.autoLoadMode(editor, mode);
}
editor.setOption('mode', mode);
}
if (exp.$language) {
var name = exp.$language.find('a[data-value="' + mode + '"]').text() || undefined;
name = name ? Messages.languageButton + ' ('+name+')' : Messages.languageButton;
exp.$language.setValue(mode, name);
}
if(cb) { cb(mode); }
};
var setTheme = exp.setTheme = (function () {
var path = '/common/theme/';
var $head = $(window.document.head);
var themeLoaded = exp.themeLoaded = function (theme) {
return $head.find('link[href*="'+theme+'"]').length;
};
var loadTheme = exp.loadTheme = function (theme) {
$head.append($('<link />', {
rel: 'stylesheet',
href: path + theme + '.css',
}));
};
return function (theme, $select) {
if (!theme) {
editor.setOption('theme', 'default');
} else {
if (!themeLoaded(theme)) {
loadTheme(theme);
}
editor.setOption('theme', theme);
}
if ($select) {
var name = theme || undefined;
name = name ? Messages.themeButton + ' ('+theme+')' : Messages.themeButton;
$select.setValue(theme, name);
}
};
}());
exp.getHeadingText = function () {
return module.getHeadingText(editor);
};
exp.configureLanguage = function (Common, cb, onModeChanged) {
var options = [];
Modes.list.forEach(function (l) {
options.push({
tag: 'a',
attributes: {
'data-value': l.mode,
'href': '#',
},
content: l.language // Pretty name of the language value
});
});
var dropdownConfig = {
text: Messages.languageButton, // Button initial text
options: options, // Entries displayed in the menu
left: true, // Open to the left of the button
isSelect: true,
feedback: 'CODE_LANGUAGE',
common: Common
};
var $block = exp.$language = UIElements.createDropdown(dropdownConfig);
$block.find('button').attr('title', Messages.languageButtonTitle);
var isHovering = false;
var $aLanguages = $block.find('a');
$aLanguages.mouseenter(function () {
isHovering = true;
setMode($(this).attr('data-value'));
});
$aLanguages.mouseleave(function () {
if (isHovering) {
setMode($block.find(".cp-dropdown-element-active").attr('data-value'));
}
});
$aLanguages.click(function () {
isHovering = false;
setMode($(this).attr('data-value'), onModeChanged);
onLocal();
});
if ($drawer) { $drawer.append($block); }
if (exp.highlightMode) { exp.setMode(exp.highlightMode); }
if (cb) { cb(); }
};
exp.configureTheme = function (Common, cb) {
/* Remember the user's last choice of theme using localStorage */
var themeKey = ['codemirror', 'theme'];
var todo = function (err, lastTheme) {
lastTheme = lastTheme || 'default';
var options = [];
Themes.forEach(function (l) {
options.push({
tag: 'a',
attributes: {
'data-value': l.name,
'href': '#',
},
content: l.name // Pretty name of the language value
});
});
var dropdownConfig = {
text: 'Theme', // Button initial text
options: options, // Entries displayed in the menu
left: true, // Open to the left of the button
isSelect: true,
initialValue: lastTheme,
feedback: 'CODE_THEME',
common: Common
};
var $block = exp.$theme = UIElements.createDropdown(dropdownConfig);
$block.find('button').attr('title', Messages.themeButtonTitle);
setTheme(lastTheme, $block);
var isHovering = false;
var $aThemes = $block.find('a');
$aThemes.mouseenter(function () {
isHovering = true;
var theme = $(this).attr('data-value');
setTheme(theme, $block);
});
$aThemes.mouseleave(function () {
if (isHovering) {
setTheme(lastTheme, $block);
Common.setAttribute(themeKey, lastTheme);
}
});
$aThemes.click(function () {
isHovering = false;
var theme = $(this).attr('data-value');
setTheme(theme, $block);
Common.setAttribute(themeKey, theme);
});
if ($drawer) { $drawer.append($block); }
if (cb) { cb(); }
};
Common.getAttribute(themeKey, todo);
};
exp.getContentExtension = function () {
return module.getContentExtension(exp.highlightMode);
};
exp.fileExporter = function () {
return module.fileExporter(editor.getValue());
};
exp.fileImporter = function (content, file) {
var $toolbarContainer = $('#cme_toolbox');
var mime = CodeMirror.findModeByMIME(file.type);
var mode;
if (!mime) {
var ext = /.+\.([^.]+)$/.exec(file.name);
if (ext && ext[1]) {
mode = CMeditor.findModeByExtension(ext[1]);
mode = mode && mode.mode || null;
}
} else {
mode = mime && mime.mode || null;
}
if (mode === "markdown") { mode = "gfm"; }
if (mode && Modes.list.some(function (o) { return o.mode === mode; })) {
exp.setMode(mode);
$toolbarContainer.find('#language-mode').val(mode);
} else {
console.log("Couldn't find a suitable highlighting mode: %s", mode);
exp.setMode('text');
$toolbarContainer.find('#language-mode').val('text');
}
// return the mode so that the code editor can decide how to display the new content
return { content: content, mode: mode };
};
exp.setValueAndCursor = function (oldDoc, remoteDoc) {
return module.setValueAndCursor(editor, oldDoc, remoteDoc);
};
/////
var canonicalize = function (t) { return t.replace(/\r\n/g, '\n'); };
exp.contentUpdate = function (newContent) {
var oldDoc = canonicalize(editor.getValue());
var remoteDoc = newContent.content;
// setValueAndCursor triggers onLocal, even if we don't make any change to the content
// and it may revert other changes (metadata)
if (oldDoc === remoteDoc) { return; }
exp.setValueAndCursor(oldDoc, remoteDoc);
};
exp.getContent = function () {
editor.save();
return { content: canonicalize(editor.getValue()) };
};
exp.mkFileManager = function (framework) {
var fmConfig = {
dropArea: $('.CodeMirror'),
body: $('body'),
onUploaded: function (ev, data) {
var parsed = Hash.parsePadUrl(data.url);
var secret = Hash.getSecrets('file', parsed.hash, data.password);
var src = Hash.getBlobPathFromHex(secret.channel);
var key = Hash.encodeBase64(secret.keys.cryptKey);
var mt = '<media-tag src="' + src + '" data-crypto-key="cryptpad:' + key + '"></media-tag>';
editor.replaceSelection(mt);
}
};
framework._.sfCommon.createFileManager(fmConfig);
};
exp.mkIndentSettings = function (metadataMgr) {
var setIndentation = function (units, useTabs, fontSize, spellcheck) {
if (typeof(units) !== 'number') { return; }
var doc = editor.getDoc();
editor.setOption('indentUnit', units);
editor.setOption('tabSize', units);
editor.setOption('indentWithTabs', useTabs);
editor.setOption('spellcheck', spellcheck);
editor.setOption("extraKeys", {
Tab: function() {
if (doc.somethingSelected()) {
editor.execCommand("indentMore");
}
else {
if (!useTabs) { editor.execCommand("insertSoftTab"); }
else { editor.execCommand("insertTab"); }
}
},
"Shift-Tab": function () {
editor.execCommand("indentLess");
},
"Backspace": function () {
var cursor = doc.getCursor();
var line = doc.getLine(cursor.line);
var beforeCursor = line.substring(0, cursor.ch);
if (beforeCursor && beforeCursor.trim() === "") {
editor.execCommand("indentLess");
} else {
editor.execCommand("delCharBefore");
}
},
});
$('.CodeMirror').css('font-size', fontSize+'px');
};
var indentKey = 'indentUnit';
var useTabsKey = 'indentWithTabs';
var fontKey = 'fontSize';
var spellcheckKey = 'spellcheck';
var updateIndentSettings = function () {
if (!metadataMgr) { return; }
var data = metadataMgr.getPrivateData().settings;
data = data.codemirror || {};
var indentUnit = data[indentKey];
var useTabs = data[useTabsKey];
var fontSize = data[fontKey];
var spellcheck = data[spellcheckKey];
setIndentation(
typeof(indentUnit) === 'number'? indentUnit : 2,
typeof(useTabs) === 'boolean'? useTabs : false,
typeof(fontSize) === 'number' ? fontSize : 12,
typeof(spellcheck) === 'boolean' ? spellcheck : false);
};
metadataMgr.onChangeLazy(updateIndentSettings);
updateIndentSettings();
};
exp.getCursor = function () {
var doc = canonicalize(editor.getValue());
var cursor = {};
cursor.selectionStart = cursorToPos(editor.getCursor('from'), doc);
cursor.selectionEnd = cursorToPos(editor.getCursor('to'), doc);
return cursor;
};
var makeCursor = function (id) {
if (document.getElementById(id)) {
return document.getElementById(id);
}
return $('<span>', {
'id': id,
'class': 'cp-codemirror-cursor'
})[0];
};
var makeTippy = function (cursor) {
var html = '<span class="cp-cursor-avatar">';
if (cursor.avatar && UIElements.getAvatar(cursor.avatar)) {
html += UIElements.getAvatar(cursor.avatar);
}
html += cursor.name + '</span>';
return html;
};
var marks = {};
exp.removeCursors = function () {
for (var id in marks) {
marks[id].clear();
delete marks[id];
}
};
exp.setRemoteCursor = function (data) {
if (data.leave) {
$('.cp-codemirror-cursor[id^='+data.id+']').each(function (i, el) {
var id = $(el).attr('id');
if (marks[id]) {
marks[id].clear();
delete marks[id];
}
});
return;
}
var id = data.id;
var cursor = data.cursor;
var doc = canonicalize(editor.getValue());
if (marks[id]) {
marks[id].clear();
delete marks[id];
}
if (!cursor.selectionStart) { return; }
if (cursor.selectionStart === cursor.selectionEnd) {
var cursorPosS = posToCursor(cursor.selectionStart, doc);
var el = makeCursor(id);
if (cursor.color) {
$(el).css('border-color', cursor.color);
$(el).css('background-color', cursor.color);
}
if (cursor.name) {
$(el).attr('title', makeTippy(cursor));
}
marks[id] = editor.setBookmark(cursorPosS, { widget: el });
} else {
var pos1 = posToCursor(cursor.selectionStart, doc);
var pos2 = posToCursor(cursor.selectionEnd, doc);
var css = cursor.color
? 'background-color: rgba(' + Util.hexToRGB(cursor.color).join(',') + ',0.2)'
: 'background-color: rgba(255,0,0,0.2)';
marks[id] = editor.markText(pos1, pos2, {
css: css,
title: makeTippy(cursor),
className: 'cp-tippy-html'
});
}
};
return exp;
};
return module;
});