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605 lines
17 KiB
JavaScript
605 lines
17 KiB
JavaScript
/**
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* Created by WittBulter on 2017/1/17.
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*/
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import Base from './base'
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export default class Action {
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constructor (){
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this.saved_overflow = ''
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}
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/**
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* Action for toggling bold.
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*/
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static toggleBold (editor){
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Base.toggleBlock(editor, "bold", editor.options.blockStyles.bold);
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}
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/**
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* Action for toggling italic.
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*/
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static toggleItalic (editor){
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Base.toggleBlock(editor, "italic", editor.options.blockStyles.italic);
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}
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/**
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* Action for drawing a link.
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*/
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static drawLink (editor){
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const cm = editor.codemirror;
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const stat = Base.getState(cm);
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const options = editor.options;
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let url = "http://";
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if (options.promptURLs){
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url = prompt(options.promptTexts.link);
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if (!url){
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return false;
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}
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}
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Base.replaceSelection(cm, stat.link, options.insertTexts.link, url);
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}
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/**
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* Action for toggling heading size: normal -> h1 -> h2 -> h3 -> h4 -> h5 -> h6 -> normal
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*/
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static toggleHeadingSmaller (editor){
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const cm = editor.codemirror;
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Base.toggleHeading(cm, "smaller");
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}
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/**
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* Action for toggling heading size: normal -> h6 -> h5 -> h4 -> h3 -> h2 -> h1 -> normal
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*/
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static toggleHeadingBigger (editor){
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const cm = editor.codemirror;
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Base.toggleHeading(cm, "bigger");
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}
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/**
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* Action for drawing an img.
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*/
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static drawImage (editor){
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const cm = editor.codemirror;
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const stat = Base.getState(cm);
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const options = editor.options;
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let url = "http://";
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if (options.promptURLs){
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url = prompt(options.promptTexts.image);
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if (!url){
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return false;
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}
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}
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Base.replaceSelection(cm, stat.image, options.insertTexts.image, url);
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}
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/**
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* Action for toggling blockquote.
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*/
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static toggleBlockquote (editor){
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const cm = editor.codemirror;
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Base.toggleLine(cm, "quote");
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}
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/**
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* Action for toggling ol.
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*/
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static toggleOrderedList (editor){
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const cm = editor.codemirror;
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Base.toggleLine(cm, "ordered-list");
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}
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/**
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* Action for toggling ul.
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*/
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static toggleUnorderedList (editor){
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const cm = editor.codemirror;
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Base.toggleLine(cm, "unordered-list");
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}
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/**
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* Action for toggling code block.
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*/
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static toggleCodeBlock (editor){
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let fenceCharsToInsert = editor.options.blockStyles.code;
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const fencing_line = line =>{
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/* return true, if this is a ``` or ~~~ line */
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if (typeof line !== "object"){
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throw "fencing_line() takes a 'line' object (not a line number, or line text). Got: " + typeof line + ": " + line;
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}
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return line.styles && line.styles[2] && line.styles[2].indexOf("formatting-code-block") !== -1;
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}
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const token_state = token =>{
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// base goes an extra level deep when mode backdrops are used, e.g. spellchecker on
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return token.state.base.base || token.state.base;
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}
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const code_type = (cm, line_num, line = cm.getLineHandle(line_num), firstTok, lastTok) =>{
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/*
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* Return "single", "indented", "fenced" or false
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*
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* cm and line_num are required. Others are optional for efficiency
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* To check in the middle of a line, pass in firstTok yourself.
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*/
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firstTok = firstTok || cm.getTokenAt({
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line: line_num,
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ch: 1
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});
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lastTok = lastTok || (!!line.text && cm.getTokenAt({
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line: line_num,
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ch: line.text.length - 1
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}));
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let types = firstTok.type? firstTok.type.split(" "): [];
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if (lastTok && token_state(lastTok).indentedCode){
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// have to check last char, since first chars of first line aren"t marked as indented
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return "indented";
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} else if (types.indexOf("comment") === -1){
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// has to be after "indented" check, since first chars of first indented line aren"t marked as such
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return false;
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} else if (token_state(firstTok).fencedChars || token_state(lastTok).fencedChars || fencing_line(line)){
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return "fenced";
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} else{
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return "single";
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}
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}
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const insertFencingAtSelection = (cm, cur_start, cur_end, fenceCharsToInsert) =>{
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let start_line_sel = cur_start.line + 1,
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end_line_sel = cur_end.line + 1,
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sel_multi = cur_start.line !== cur_end.line,
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repl_start = fenceCharsToInsert + "\n",
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repl_end = "\n" + fenceCharsToInsert;
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if (sel_multi){
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end_line_sel++;
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}
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// handle last char including \n or not
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if (sel_multi && cur_end.ch === 0){
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repl_end = fenceCharsToInsert + "\n";
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end_line_sel--;
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}
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Base.replaceSelection(cm, false, [repl_start, repl_end]);
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cm.setSelection({
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line: start_line_sel,
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ch: 0
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}, {
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line: end_line_sel,
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ch: 0
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});
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}
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let cm = editor.codemirror,
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cur_start = cm.getCursor("start"),
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cur_end = cm.getCursor("end"),
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tok = cm.getTokenAt({
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line: cur_start.line,
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ch: cur_start.ch || 1
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}), // avoid ch 0 which is a cursor pos but not token
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line = cm.getLineHandle(cur_start.line),
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is_code = code_type(cm, cur_start.line, line, tok);
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let block_start, block_end, lineCount;
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if (is_code === "single"){
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// similar to some SimpleMDE _toggleBlock logic
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let start = line.text.slice(0, cur_start.ch)
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.replace("`", ""),
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end = line.text.slice(cur_start.ch)
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.replace("`", "");
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cm.replaceRange(start + end, {
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line: cur_start.line,
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ch: 0
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}, {
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line: cur_start.line,
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ch: 99999999999999
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});
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cur_start.ch--;
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if (cur_start !== cur_end){
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cur_end.ch--;
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}
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cm.setSelection(cur_start, cur_end);
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cm.focus();
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} else if (is_code === "fenced"){
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if (cur_start.line !== cur_end.line || cur_start.ch !== cur_end.ch){
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// use selection
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// find the fenced line so we know what type it is (tilde, backticks, number of them)
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for (block_start = cur_start.line; block_start >= 0; block_start--){
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line = cm.getLineHandle(block_start);
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if (fencing_line(line)){
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break;
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}
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}
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let fencedTok = cm.getTokenAt({
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line: block_start,
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ch: 1
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});
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let fence_chars = token_state(fencedTok).fencedChars;
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let start_text, start_line;
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let end_text, end_line;
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// check for selection going up against fenced lines, in which case we don't want to add more fencing
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if (fencing_line(cm.getLineHandle(cur_start.line))){
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start_text = "";
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start_line = cur_start.line;
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} else if (fencing_line(cm.getLineHandle(cur_start.line - 1))){
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start_text = "";
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start_line = cur_start.line - 1;
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} else{
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start_text = fence_chars + "\n";
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start_line = cur_start.line;
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}
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if (fencing_line(cm.getLineHandle(cur_end.line))){
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end_text = "";
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end_line = cur_end.line;
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if (cur_end.ch === 0){
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end_line += 1;
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}
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} else if (cur_end.ch !== 0 && fencing_line(cm.getLineHandle(cur_end.line + 1))){
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end_text = "";
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end_line = cur_end.line + 1;
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} else{
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end_text = fence_chars + "\n";
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end_line = cur_end.line + 1;
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}
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if (cur_end.ch === 0){
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// full last line selected, putting cursor at beginning of next
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end_line -= 1;
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}
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cm.operation(function (){
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// end line first, so that line numbers don't change
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cm.replaceRange(end_text, {
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line: end_line,
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ch: 0
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}, {
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line: end_line + (end_text? 0: 1),
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ch: 0
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});
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cm.replaceRange(start_text, {
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line: start_line,
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ch: 0
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}, {
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line: start_line + (start_text? 0: 1),
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ch: 0
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});
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});
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cm.setSelection({
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line: start_line + (start_text? 1: 0),
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ch: 0
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}, {
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line: end_line + (start_text? 1: -1),
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ch: 0
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});
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cm.focus();
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} else{
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// no selection, search for ends of this fenced block
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let search_from = cur_start.line;
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if (fencing_line(cm.getLineHandle(cur_start.line))){ // gets a little tricky if cursor is right on a fenced line
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if (code_type(cm, cur_start.line + 1) === "fenced"){
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block_start = cur_start.line;
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search_from = cur_start.line + 1; // for searching for "end"
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} else{
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block_end = cur_start.line;
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search_from = cur_start.line - 1; // for searching for "start"
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}
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}
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if (block_start === undefined){
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for (block_start = search_from; block_start >= 0; block_start--){
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line = cm.getLineHandle(block_start);
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if (fencing_line(line)){
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break;
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}
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}
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}
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if (block_end === undefined){
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lineCount = cm.lineCount();
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for (block_end = search_from; block_end < lineCount; block_end++){
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line = cm.getLineHandle(block_end);
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if (fencing_line(line)){
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break;
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}
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}
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}
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cm.operation(function (){
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cm.replaceRange("", {
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line: block_start,
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ch: 0
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}, {
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line: block_start + 1,
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ch: 0
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});
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cm.replaceRange("", {
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line: block_end - 1,
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ch: 0
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}, {
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line: block_end,
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ch: 0
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});
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});
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cm.focus();
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}
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} else if (is_code === "indented"){
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if (cur_start.line !== cur_end.line || cur_start.ch !== cur_end.ch){
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// use selection
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block_start = cur_start.line;
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block_end = cur_end.line;
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if (cur_end.ch === 0){
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block_end--;
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}
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} else{
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// no selection, search for ends of this indented block
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for (block_start = cur_start.line; block_start >= 0; block_start--){
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line = cm.getLineHandle(block_start);
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if (line.text.match(/^\s*$/)){
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// empty or all whitespace - keep going
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continue;
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} else{
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if (code_type(cm, block_start, line) !== "indented"){
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block_start += 1;
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break;
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}
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}
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}
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lineCount = cm.lineCount();
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for (block_end = cur_start.line; block_end < lineCount; block_end++){
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line = cm.getLineHandle(block_end);
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if (line.text.match(/^\s*$/)){
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// empty or all whitespace - keep going
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continue;
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} else{
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if (code_type(cm, block_end, line) !== "indented"){
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block_end -= 1;
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break;
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}
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}
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}
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}
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// if we are going to un-indent based on a selected set of lines, and the next line is indented too, we need to
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// insert a blank line so that the next line(s) continue to be indented code
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let next_line = cm.getLineHandle(block_end + 1),
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next_line_last_tok = next_line && cm.getTokenAt({
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line: block_end + 1,
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ch: next_line.text.length - 1
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}),
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next_line_indented = next_line_last_tok && token_state(next_line_last_tok).indentedCode;
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if (next_line_indented){
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cm.replaceRange("\n", {
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line: block_end + 1,
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ch: 0
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});
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}
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for (var i = block_start; i <= block_end; i++){
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cm.indentLine(i, "subtract"); // TODO: this doesn't get tracked in the history, so can't be undone :(
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}
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cm.focus();
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} else{
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// insert code formatting
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let no_sel_and_starting_of_line = (cur_start.line === cur_end.line && cur_start.ch === cur_end.ch && cur_start.ch === 0);
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let sel_multi = cur_start.line !== cur_end.line;
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if (no_sel_and_starting_of_line || sel_multi){
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insertFencingAtSelection(cm, cur_start, cur_end, fenceCharsToInsert);
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} else{
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Base.replaceSelection(cm, false, ["`", "`"]);
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}
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}
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}
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/**
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* Toggle full screen of the editor.
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*/
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static toggleFullScreen (editor){
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// Set fullscreen
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let cm = editor.codemirror;
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cm.setOption("fullScreen", !cm.getOption("fullScreen"));
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// Prevent scrolling on body during fullscreen active
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if (cm.getOption("fullScreen")){
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this.saved_overflow = document.body.style.overflow;
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document.body.style.overflow = "hidden";
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} else{
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document.body.style.overflow = this.saved_overflow;
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}
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// Update toolbar class
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let wrap = cm.getWrapperElement();
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if (!/fullscreen/.test(wrap.previousSibling.className)){
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wrap.previousSibling.className += " fullscreen";
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} else{
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wrap.previousSibling.className = wrap.previousSibling.className.replace(/\s*fullscreen\b/, "");
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}
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// Update toolbar button
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let toolbarButton = editor.toolbarElements.fullscreen;
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if (!/active/.test(toolbarButton.className)){
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toolbarButton.className += " active";
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} else{
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toolbarButton.className = toolbarButton.className.replace(/\s*active\s*/g, "");
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}
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// Hide side by side if needed
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const sidebyside = cm.getWrapperElement().nextSibling;
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if (/editor-preview-active-side/.test(sidebyside.className))
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Action.toggleSideBySide(editor);
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}
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/**
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* Toggle side by side preview
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*/
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static toggleSideBySide (editor){
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let cm = editor.codemirror;
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let wrapper = cm.getWrapperElement();
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let preview = wrapper.nextSibling;
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let toolbarButton = editor.toolbarElements["side-by-side"];
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let useSideBySideListener = false;
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if (/editor-preview-active-side/.test(preview.className)){
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preview.className = preview.className.replace(
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/\s*editor-preview-active-side\s*/g, ""
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);
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toolbarButton.className = toolbarButton.className.replace(/\s*active\s*/g, "");
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wrapper.className = wrapper.className.replace(/\s*CodeMirror-sided\s*/g, " ");
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} else{
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// When the preview button is clicked for the first time,
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// give some time for the transition from editor.css to fire and the view to slide from right to left,
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// instead of just appearing.
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setTimeout(function (){
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if (!cm.getOption("fullScreen"))
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Action.toggleFullScreen(editor);
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preview.className += " editor-preview-active-side";
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}, 1);
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toolbarButton.className += " active";
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wrapper.className += " CodeMirror-sided";
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useSideBySideListener = true;
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}
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// Hide normal preview if active
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let previewNormal = wrapper.lastChild;
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if (/editor-preview-active/.test(previewNormal.className)){
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previewNormal.className = previewNormal.className.replace(
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/\s*editor-preview-active\s*/g, ""
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);
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let toolbar = editor.toolbarElements.preview;
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let toolbar_div = wrapper.previousSibling;
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toolbar.className = toolbar.className.replace(/\s*active\s*/g, "");
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toolbar_div.className = toolbar_div.className.replace(/\s*disabled-for-preview*/g, "");
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}
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const sideBySideRenderingFunction = function (){
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preview.innerHTML = editor.options.previewRender(editor.value(), preview);
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};
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if (!cm.sideBySideRenderingFunction){
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cm.sideBySideRenderingFunction = sideBySideRenderingFunction;
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}
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if (useSideBySideListener){
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preview.innerHTML = editor.options.previewRender(editor.value(), preview);
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cm.on("update", cm.sideBySideRenderingFunction);
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} else{
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cm.off("update", cm.sideBySideRenderingFunction);
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}
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// Refresh to fix selection being off (#309)
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cm.refresh();
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}
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/**
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* Preview action.
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*/
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static togglePreview (editor){
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let cm = editor.codemirror;
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let wrapper = cm.getWrapperElement();
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let toolbar_div = wrapper.previousSibling;
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let toolbar = editor.options.toolbar? editor.toolbarElements.preview: false;
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let preview = wrapper.lastChild;
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if (!preview || !/editor-preview/.test(preview.className)){
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preview = document.createElement("div");
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preview.className = "editor-preview";
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wrapper.appendChild(preview);
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}
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if (/editor-preview-active/.test(preview.className)){
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preview.className = preview.className.replace(
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/\s*editor-preview-active\s*/g, ""
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);
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if (toolbar){
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toolbar.className = toolbar.className.replace(/\s*active\s*/g, "");
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toolbar_div.className = toolbar_div.className.replace(/\s*disabled-for-preview*/g, "");
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}
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} else{
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// When the preview button is clicked for the first time,
|
|
// give some time for the transition from editor.css to fire and the view to slide from right to left,
|
|
// instead of just appearing.
|
|
setTimeout(function (){
|
|
preview.className += " editor-preview-active";
|
|
}, 1);
|
|
if (toolbar){
|
|
toolbar.className += " active";
|
|
toolbar_div.className += " disabled-for-preview";
|
|
}
|
|
}
|
|
preview.innerHTML = editor.options.previewRender(editor.value(), preview);
|
|
|
|
// Turn off side by side if needed
|
|
const sidebyside = cm.getWrapperElement().nextSibling;
|
|
if (/editor-preview-active-side/.test(sidebyside.className))
|
|
Action.toggleSideBySide(editor);
|
|
}
|
|
|
|
/**
|
|
* Action for toggling strikethrough.
|
|
*/
|
|
static toggleStrikethrough (editor){
|
|
Base.toggleBlock(editor, "strikethrough", "~~");
|
|
}
|
|
|
|
/**
|
|
* Action for toggling heading size 1, 2, 3
|
|
*/
|
|
static toggleHeading1 (editor){
|
|
const cm = editor.codemirror;
|
|
Base.toggleHeading(cm, undefined, 1);
|
|
}
|
|
|
|
static toggleHeading2 (editor){
|
|
const cm = editor.codemirror;
|
|
Base.toggleHeading(cm, undefined, 2);
|
|
}
|
|
|
|
static toggleHeading3 (editor){
|
|
const cm = editor.codemirror;
|
|
Base.toggleHeading(cm, undefined, 3);
|
|
}
|
|
|
|
/**
|
|
* Action for clean block (remove headline, list, blockquote code, markers)
|
|
*/
|
|
static cleanBlock (editor){
|
|
const cm = editor.codemirror;
|
|
Base.cleanBlock(cm);
|
|
}
|
|
|
|
/**
|
|
* Action for drawing a table.
|
|
*/
|
|
static drawTable (editor){
|
|
const cm = editor.codemirror;
|
|
const stat = Base.getState(cm);
|
|
const options = editor.options;
|
|
Base.replaceSelection(cm, stat.table, options.insertTexts.table);
|
|
}
|
|
|
|
/**
|
|
* Action for drawing a horizontal rule.
|
|
*/
|
|
static drawHorizontalRule (editor){
|
|
const cm = editor.codemirror;
|
|
const stat = Base.getState(cm);
|
|
const options = editor.options;
|
|
Base.replaceSelection(cm, stat.image, options.insertTexts.horizontalRule);
|
|
}
|
|
|
|
/**
|
|
* Undo action.
|
|
*/
|
|
static undo (editor){
|
|
const cm = editor.codemirror;
|
|
cm.undo();
|
|
cm.focus();
|
|
}
|
|
|
|
/**
|
|
* Redo action.
|
|
*/
|
|
static redo (editor){
|
|
const cm = editor.codemirror;
|
|
cm.redo();
|
|
cm.focus();
|
|
}
|
|
|
|
|
|
} |