HackMD/public/js/lib/editor/index.js

460 lines
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JavaScript
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import * as utils from './utils';
/* config section */
const isMac = CodeMirror.keyMap.default === CodeMirror.keyMap.macDefault;
const defaultEditorMode = 'gfm';
const viewportMargin = 20;
const jumpToAddressBarKeymapName = isMac ? "Cmd-L" : "Ctrl-L";
export default class Editor {
constructor() {
this.editor = null;
this.defaultExtraKeys = {
"F10": function (cm) {
cm.setOption("fullScreen", !cm.getOption("fullScreen"));
},
"Esc": function (cm) {
if (cm.getOption('keyMap').substr(0, 3) === 'vim') return CodeMirror.Pass;
else if (cm.getOption("fullScreen")) cm.setOption("fullScreen", false);
},
"Cmd-S": function () {
return false;
},
"Ctrl-S": function () {
return false;
},
"Enter": "newlineAndIndentContinueMarkdownList",
"Tab": function (cm) {
var tab = '\t';
// contruct x length spaces
var spaces = Array(parseInt(cm.getOption("indentUnit")) + 1).join(" ");
//auto indent whole line when in list or blockquote
var cursor = cm.getCursor();
var line = cm.getLine(cursor.line);
// this regex match the following patterns
// 1. blockquote starts with "> " or ">>"
// 2. unorder list starts with *+-
// 3. order list starts with "1." or "1)"
var regex = /^(\s*)(>[> ]*|[*+-]\s|(\d+)([.)]))/;
var match;
var multiple = cm.getSelection().split('\n').length > 1 || cm.getSelections().length > 1;
if (multiple) {
cm.execCommand('defaultTab');
} else if ((match = regex.exec(line)) !== null) {
var ch = match[1].length;
var pos = {
line: cursor.line,
ch: ch
};
if (cm.getOption('indentWithTabs'))
cm.replaceRange(tab, pos, pos, '+input');
else
cm.replaceRange(spaces, pos, pos, '+input');
} else {
if (cm.getOption('indentWithTabs'))
cm.execCommand('defaultTab');
else {
cm.replaceSelection(spaces);
}
}
},
"Cmd-Left": "goLineLeftSmart",
"Cmd-Right": "goLineRight",
"Ctrl-C": function (cm) {
if (!isMac && cm.getOption('keyMap').substr(0, 3) === 'vim') {
document.execCommand("copy");
} else {
return CodeMirror.Pass;
}
},
"Ctrl-*": (cm) => {
utils.wrapTextWith(this.editor, cm, '*');
},
"Shift-Ctrl-8": (cm) => {
utils.wrapTextWith(this.editor, cm, '*');
},
"Ctrl-_": (cm) => {
utils.wrapTextWith(this.editor, cm, '_');
},
"Shift-Ctrl--": (cm) => {
utils.wrapTextWith(this.editor, cm, '_');
},
"Ctrl-~": (cm) => {
utils.wrapTextWith(this.editor, cm, '~');
},
"Shift-Ctrl-`": (cm) => {
utils.wrapTextWith(this.editor, cm, '~');
},
"Ctrl-^": (cm) => {
utils.wrapTextWith(this.editor, cm, '^');
},
"Shift-Ctrl-6": (cm) => {
utils.wrapTextWith(this.editor, cm, '^');
},
"Ctrl-+": (cm) => {
utils.wrapTextWith(this.editor, cm, '+');
},
"Shift-Ctrl-=": (cm) => {
utils.wrapTextWith(this.editor, cm, '+');
},
"Ctrl-=": (cm) => {
utils.wrapTextWith(this.editor, cm, '=');
},
"Shift-Ctrl-Backspace": (cm) => {
utils.wrapTextWith(this.editor, cm, 'Backspace');
}
};
this.jumpToAddressBarKeymapValue = null;
}
getStatusBarTemplate(callback) {
$.get(window.serverurl + '/views/statusbar.html', (template) => {
this.statusBarTemplate = template;
if (callback) callback();
});
}
addStatusBar() {
if (!this.statusBarTemplate) {
this.getStatusBarTemplate(this.addStatusBar);
return;
}
this.statusBar = $(this.statusBarTemplate);
this.statusCursor = this.statusBar.find('.status-cursor');
this.statusFile = this.statusBar.find('.status-file');
this.statusIndicators = this.statusBar.find('.status-indicators');
this.statusIndent = this.statusBar.find('.status-indent');
this.statusKeymap = this.statusBar.find('.status-keymap');
this.statusLength = this.statusBar.find('.status-length');
this.statusTheme = this.statusBar.find('.status-theme');
this.statusSpellcheck = this.statusBar.find('.status-spellcheck');
this.statusPreferences = this.statusBar.find('.status-preferences');
this.statusPanel = this.editor.addPanel(this.statusBar[0], {
position: "bottom"
});
this.setIndent();
this.setKeymap();
this.setTheme();
this.setSpellcheck();
this.setPreferences();
}
setIndent() {
var cookieIndentType = Cookies.get('indent_type');
var cookieTabSize = parseInt(Cookies.get('tab_size'));
var cookieSpaceUnits = parseInt(Cookies.get('space_units'));
if (cookieIndentType) {
if (cookieIndentType == 'tab') {
this.editor.setOption('indentWithTabs', true);
if (cookieTabSize)
this.editor.setOption('indentUnit', cookieTabSize);
} else if (cookieIndentType == 'space') {
this.editor.setOption('indentWithTabs', false);
if (cookieSpaceUnits)
this.editor.setOption('indentUnit', cookieSpaceUnits);
}
}
if (cookieTabSize)
this.editor.setOption('tabSize', cookieTabSize);
var type = this.statusIndicators.find('.indent-type');
var widthLabel = this.statusIndicators.find('.indent-width-label');
var widthInput = this.statusIndicators.find('.indent-width-input');
const setType = () => {
if (this.editor.getOption('indentWithTabs')) {
Cookies.set('indent_type', 'tab', {
expires: 365
});
type.text('Tab Size:');
} else {
Cookies.set('indent_type', 'space', {
expires: 365
});
type.text('Spaces:');
}
}
setType();
const setUnit = () => {
var unit = this.editor.getOption('indentUnit');
if (this.editor.getOption('indentWithTabs')) {
Cookies.set('tab_size', unit, {
expires: 365
});
} else {
Cookies.set('space_units', unit, {
expires: 365
});
}
widthLabel.text(unit);
}
setUnit();
type.click(() => {
if (this.editor.getOption('indentWithTabs')) {
this.editor.setOption('indentWithTabs', false);
cookieSpaceUnits = parseInt(Cookies.get('space_units'));
if (cookieSpaceUnits)
this.editor.setOption('indentUnit', cookieSpaceUnits)
} else {
this.editor.setOption('indentWithTabs', true);
cookieTabSize = parseInt(Cookies.get('tab_size'));
if (cookieTabSize) {
this.editor.setOption('indentUnit', cookieTabSize);
this.editor.setOption('tabSize', cookieTabSize);
}
}
setType();
setUnit();
});
widthLabel.click(() => {
if (widthLabel.is(':visible')) {
widthLabel.addClass('hidden');
widthInput.removeClass('hidden');
widthInput.val(this.editor.getOption('indentUnit'));
widthInput.select();
} else {
widthLabel.removeClass('hidden');
widthInput.addClass('hidden');
}
});
widthInput.on('change', () => {
var val = parseInt(widthInput.val());
if (!val) val = this.editor.getOption('indentUnit');
if (val < 1) val = 1;
else if (val > 10) val = 10;
if (this.editor.getOption('indentWithTabs')) {
this.editor.setOption('tabSize', val);
}
this.editor.setOption('indentUnit', val);
setUnit();
});
widthInput.on('blur', function () {
widthLabel.removeClass('hidden');
widthInput.addClass('hidden');
});
}
setKeymap() {
var cookieKeymap = Cookies.get('keymap');
if (cookieKeymap)
this.editor.setOption('keyMap', cookieKeymap);
var label = this.statusIndicators.find('.ui-keymap-label');
var sublime = this.statusIndicators.find('.ui-keymap-sublime');
var emacs = this.statusIndicators.find('.ui-keymap-emacs');
var vim = this.statusIndicators.find('.ui-keymap-vim');
const setKeymapLabel = () => {
var keymap = this.editor.getOption('keyMap');
Cookies.set('keymap', keymap, {
expires: 365
});
label.text(keymap);
this.restoreOverrideEditorKeymap();
this.setOverrideBrowserKeymap();
}
setKeymapLabel();
sublime.click(() => {
this.editor.setOption('keyMap', 'sublime');
setKeymapLabel();
});
emacs.click(() => {
this.editor.setOption('keyMap', 'emacs');
setKeymapLabel();
});
vim.click(() => {
this.editor.setOption('keyMap', 'vim');
setKeymapLabel();
});
}
setTheme() {
var cookieTheme = Cookies.get('theme');
if (cookieTheme) {
this.editor.setOption('theme', cookieTheme);
}
var themeToggle = this.statusTheme.find('.ui-theme-toggle');
const checkTheme = () => {
var theme = this.editor.getOption('theme');
if (theme == "one-dark") {
themeToggle.removeClass('active');
} else {
themeToggle.addClass('active');
}
}
themeToggle.click(() => {
var theme = this.editor.getOption('theme');
if (theme == "one-dark") {
theme = "default";
} else {
theme = "one-dark";
}
this.editor.setOption('theme', theme);
Cookies.set('theme', theme, {
expires: 365
});
checkTheme();
});
checkTheme();
}
setSpellcheck() {
var cookieSpellcheck = Cookies.get('spellcheck');
if (cookieSpellcheck) {
var mode = null;
if (cookieSpellcheck === 'true' || cookieSpellcheck === true) {
mode = 'spell-checker';
} else {
mode = defaultEditorMode;
}
if (mode && mode !== this.editor.getOption('mode')) {
this.editor.setOption('mode', mode);
}
}
var spellcheckToggle = this.statusSpellcheck.find('.ui-spellcheck-toggle');
const checkSpellcheck = () => {
var mode = this.editor.getOption('mode');
if (mode == defaultEditorMode) {
spellcheckToggle.removeClass('active');
} else {
spellcheckToggle.addClass('active');
}
}
spellcheckToggle.click(() => {
var mode = this.editor.getOption('mode');
if (mode == defaultEditorMode) {
mode = "spell-checker";
} else {
mode = defaultEditorMode;
}
if (mode && mode !== this.editor.getOption('mode')) {
this.editor.setOption('mode', mode);
}
Cookies.set('spellcheck', (mode == "spell-checker"), {
expires: 365
});
checkSpellcheck();
});
checkSpellcheck();
//workaround spellcheck might not activate beacuse the ajax loading
if (window.num_loaded < 2) {
var spellcheckTimer = setInterval(() => {
if (window.num_loaded >= 2) {
if (this.editor.getOption('mode') == "spell-checker") {
this.editor.setOption('mode', "spell-checker");
}
clearInterval(spellcheckTimer);
}
}, 100);
}
}
resetEditorKeymapToBrowserKeymap() {
var keymap = this.editor.getOption('keyMap');
if (!this.jumpToAddressBarKeymapValue) {
this.jumpToAddressBarKeymapValue = CodeMirror.keyMap[keymap][jumpToAddressBarKeymapName];
delete CodeMirror.keyMap[keymap][jumpToAddressBarKeymapName];
}
}
restoreOverrideEditorKeymap() {
var keymap = this.editor.getOption('keyMap');
if (this.jumpToAddressBarKeymapValue) {
CodeMirror.keyMap[keymap][jumpToAddressBarKeymapName] = this.jumpToAddressBarKeymapValue;
this.jumpToAddressBarKeymapValue = null;
}
}
setOverrideBrowserKeymap() {
var overrideBrowserKeymap = $('.ui-preferences-override-browser-keymap label > input[type="checkbox"]');
if (overrideBrowserKeymap.is(":checked")) {
Cookies.set('preferences-override-browser-keymap', true, {
expires: 365
});
this.restoreOverrideEditorKeymap();
} else {
Cookies.remove('preferences-override-browser-keymap');
this.resetEditorKeymapToBrowserKeymap();
}
}
setPreferences() {
var overrideBrowserKeymap = $('.ui-preferences-override-browser-keymap label > input[type="checkbox"]');
var cookieOverrideBrowserKeymap = Cookies.get('preferences-override-browser-keymap');
if (cookieOverrideBrowserKeymap && cookieOverrideBrowserKeymap === "true") {
overrideBrowserKeymap.prop('checked', true);
} else {
overrideBrowserKeymap.prop('checked', false);
}
this.setOverrideBrowserKeymap();
overrideBrowserKeymap.change(() => {
this.setOverrideBrowserKeymap();
});
}
init(textit) {
this.editor = CodeMirror.fromTextArea(textit, {
mode: defaultEditorMode,
backdrop: defaultEditorMode,
keyMap: "sublime",
viewportMargin: viewportMargin,
styleActiveLine: true,
lineNumbers: true,
lineWrapping: true,
showCursorWhenSelecting: true,
highlightSelectionMatches: true,
indentUnit: 4,
continueComments: "Enter",
theme: "one-dark",
inputStyle: "textarea",
matchBrackets: true,
autoCloseBrackets: true,
matchTags: {
bothTags: true
},
autoCloseTags: true,
foldGutter: true,
gutters: ["CodeMirror-linenumbers", "authorship-gutters", "CodeMirror-foldgutter"],
extraKeys: this.defaultExtraKeys,
flattenSpans: true,
addModeClass: true,
readOnly: true,
autoRefresh: true,
otherCursors: true,
placeholder: "← Start by entering a title here\n===\nVisit /features if you don't know what to do.\nHappy hacking :)"
});
this.getStatusBarTemplate();
return this.editor;
}
getEditor() {
return this.editor;
}
}