mirror of
https://github.com/codex-team/editor.js
synced 2024-06-02 22:12:27 +02:00
1431 lines
35 KiB
JavaScript
1431 lines
35 KiB
JavaScript
/**
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* CodeX Editor
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* https://ifmo.su/editor
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* @author CodeX team team@ifmo.su
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*/
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var cEditor = (function (cEditor) {
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// Default settings
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cEditor.settings = {
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tools : ['header', 'picture', 'list', 'quote', 'code', 'twitter', 'instagram', 'smile'],
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textareaId : 'codex-editor',
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// First-level tags viewing as separated blocks. Other'll be inserted as child
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blockTags : ['P','BLOCKQUOTE','UL','CODE','OL','H1','H2','H3','H4','H5','H6']
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};
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// Static nodes
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cEditor.nodes = {
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textarea : null,
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wrapper : null,
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toolbar : null,
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toolbarButtons : {}, // { type : DomEl, ... }
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redactor : null,
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}
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// Current editor state
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cEditor.state = {
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html : '',
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blocks : []
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}
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/**
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* Initialization
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* @uses Promise cEditor.core.prepare
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* @param {} userSettings are :
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* - tools [],
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* - textareaId String
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* ...
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*/
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cEditor.start = function (userSettings) {
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// Prepare editor settings
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this.core.prepare(userSettings)
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// If all ok, make UI, bind events and parse initial-content
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.then(this.ui.make)
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.then(this.ui.addTools)
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.then(this.ui.bindEvents)
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.then(this.parser.parseTextareaContent)
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.catch(function (error) {
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cEditor.core.log('Initialization failed with error: %o', 'warn', error);
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})
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};
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return cEditor;
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})({});
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/**
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* Redactor core methods
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* Methods:
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* - init
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* - log
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* - insertAfter
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* - isDomNode
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*/
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cEditor.core = {
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/**
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* Editor preparing method
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* @return Promise
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*/
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prepare : function (userSettings) {
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return new Promise(function(resolve, reject){
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if ( userSettings ) {
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cEditor.settings.tools = userSettings.tools || cEditor.settings.tools;
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}
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cEditor.nodes.textarea = document.getElementById(userSettings.textareaId || cEditor.settings.textareaId);
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if (typeof cEditor.nodes.textarea == undefined || cEditor.nodes.textarea == null) {
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reject(Error("Textarea wasn't found by ID: #" + userSettings.textareaId));
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} else {
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resolve();
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}
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});
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},
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/**
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* Logging method
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* @param type = ['log', 'info', 'warn']
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*/
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log : function (msg, type, arg) {
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type = type || 'log';
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if (!arg) {
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arg = msg || 'undefined';
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msg = '[codex-editor]: %o';
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} else {
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msg = '[codex-editor]: ' + msg;
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}
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try{
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if ( 'console' in window && console[ type ] ){
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if ( arg ) console[ type ]( msg , arg );
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else console[ type ]( msg );
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}
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}catch(e){}
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},
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/**
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* Helper for insert one element after another
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*/
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insertAfter : function (target, element) {
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target.parentNode.insertBefore(element, target.nextSibling);
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},
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/**
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* Readable DOM-node types map
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*/
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nodeTypes : {
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TAG : 1,
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TEXT : 3,
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COMMENT : 8
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},
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/**
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* Readable keys map
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*/
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keys : { BACKSPACE: 8, TAB: 9, ENTER: 13, SHIFT: 16, CTRL: 17, ALT: 18, ESC: 27, SPACE: 32, LEFT: 37, UP: 38, DOWN: 40, RIGHT: 39, DELETE: 46, META: 91 },
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/**
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* Check object for DOM node
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*/
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isDomNode : function (el) {
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return el && typeof el === 'object' && el.nodeType && el.nodeType == this.nodeTypes.TAG;
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}
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}
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cEditor.ui = {
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/** Blocks name. */
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BLOCK_CLASSNAME : 'ce_block',
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/**
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* Making main interface
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*/
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make : function () {
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var wrapper,
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toolbar,
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tool,
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redactor;
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/** Make editor wrapper */
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wrapper = cEditor.draw.wrapper();
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/** Append editor wrapper after initial textarea */
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cEditor.core.insertAfter(cEditor.nodes.textarea, wrapper);
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/** Make toolbar and content-editable redactor */
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toolbar = cEditor.draw.toolbar();
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redactor = cEditor.draw.redactor();
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wrapper.appendChild(toolbar);
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wrapper.appendChild(redactor);
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/** Save created ui-elements to static nodes state */
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cEditor.nodes.wrapper = wrapper;
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cEditor.nodes.toolbar = toolbar;
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cEditor.nodes.redactor = redactor;
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},
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/**
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* Append tools passed in cEditor.tools
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*/
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addTools : function () {
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var tool,
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tool_button;
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/** Make toolbar buttons */
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for (var name in cEditor.tools){
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tool = cEditor.tools[name];
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if (!tool.iconClassname) {
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cEditor.core.log('Toolbar icon classname missed. Tool %o skipped', 'warn', name);
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continue;
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}
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tool_button = cEditor.draw.toolbarButton(name, tool.iconClassname);
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cEditor.nodes.toolbar.appendChild(tool_button);
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/** Save tools to static nodes */
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cEditor.nodes.toolbarButtons[name] = tool_button;
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}
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},
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/**
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* Bind editor UI events
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*/
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bindEvents : function () {
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cEditor.core.log('ui.bindEvents fired', 'info');
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/** All keydowns on Document */
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document.addEventListener('keydown', function (event) {
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cEditor.callback.globalKeydown(event);
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}, false );
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/** All keydowns on Document */
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document.addEventListener('keyup', function (event) {
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cEditor.callback.globalKeyup(event);
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}, false );
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/** Mouse click to radactor */
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cEditor.nodes.redactor.addEventListener('click', function (event) {
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cEditor.callback.redactorClicked(event);
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cEditor.caret.save();
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}, false );
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/**
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* @deprecated;
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* Any redactor changes: keyboard input, mouse cut/paste, drag-n-drop text
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*/
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cEditor.nodes.redactor.addEventListener('input', function (event) {
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/** Saving caret in every modifications */
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cEditor.caret.save();
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cEditor.callback.redactorInputEvent(event);
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}, false );
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/** Bind click listeners on toolbar buttons */
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for (button in cEditor.nodes.toolbarButtons){
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cEditor.nodes.toolbarButtons[button].addEventListener('click', function (event) {
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cEditor.callback.toolbarButtonClicked(event, this);
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}, false);
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};
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},
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addBlockHandlers : function(block) {
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if (!block) return;
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block.addEventListener('keydown', function(event) {
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cEditor.callback.blockKeydown(event, block);
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}, false);
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}
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};
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cEditor.callback = {
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redactorSyncTimeout : null,
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globalKeydown : function(event){
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switch (event.keyCode){
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case cEditor.core.keys.TAB : this.tabKeyPressed(event); break;
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case cEditor.core.keys.ENTER : this.enterKeyPressed(event); break;
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case cEditor.core.keys.ESC : this.escapeKeyPressed(event); break;
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}
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},
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globalKeyup : function(event){
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switch (event.keyCode){
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case cEditor.core.keys.UP :
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case cEditor.core.keys.LEFT :
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case cEditor.core.keys.RIGHT :
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case cEditor.core.keys.DOWN : this.arrowKeyPressed(event); break;
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}
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},
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tabKeyPressed : function(event){
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if ( !cEditor.toolbar.opened ) {
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cEditor.toolbar.open();
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} else {
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cEditor.toolbar.leaf();
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}
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event.preventDefault();
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},
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enterKeyPressed : function(event){
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cEditor.content.workingNodeChanged();
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if ( cEditor.toolbar.opened && event.target == cEditor.content.currentNode) {
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event.preventDefault();
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cEditor.toolbar.toolClicked(event);
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cEditor.toolbar.close();
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};
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},
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escapeKeyPressed : function(event){
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cEditor.toolbar.close();
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event.preventDefault();
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},
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arrowKeyPressed : function(event){
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cEditor.content.workingNodeChanged();
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/* Closing toolbar */
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cEditor.toolbar.close();
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cEditor.toolbar.move();
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},
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redactorClicked : function (event) {
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cEditor.content.workingNodeChanged();
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cEditor.toolbar.move();
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cEditor.toolbar.open();
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},
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/**
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* Toolbar button click handler
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* @param this - cursor to the button
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*/
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toolbarButtonClicked : function (event, button) {
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cEditor.toolbar.current = button.dataset.type;
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cEditor.toolbar.toolClicked(event);
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cEditor.toolbar.close();
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},
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redactorInputEvent : function (event) {
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/**
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* Clear previous sync-timeout
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*/
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if (this.redactorSyncTimeout){
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clearTimeout(this.redactorSyncTimeout);
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}
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/**
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* Start waiting to input finish and sync redactor
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*/
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this.redactorSyncTimeout = setTimeout(function() {
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cEditor.content.sync();
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}, 500);
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},
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/**
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* Block handlers for KeyDown events
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*/
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blockKeydown : function(event, block) {
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switch (event.keyCode){
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case cEditor.core.keys.DOWN:
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case cEditor.core.keys.RIGHT:
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cEditor.callback.blockRightOrDownArrowPressed(block);
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break;
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case cEditor.core.keys.ENTER:
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cEditor.callback.enterPressed(block);
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break;
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case cEditor.core.keys.BACKSPACE:
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cEditor.callback.backspacePressed(block);
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break;
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case cEditor.core.keys.UP:
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case cEditor.core.keys.LEFT:
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cEditor.callback.blockLeftOrUpArrowPressed(block);
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break;
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}
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},
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/**
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* RIGHT or DOWN keydowns on block
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*/
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blockRightOrDownArrowPressed : function (block) {
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var selection = window.getSelection(),
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focusedNode = selection.anchorNode,
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focusedNodeHolder;
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/** Check for caret existance */
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if (!focusedNode){
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return false;
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}
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/** Saving caret after keydown event happend */
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cEditor.caret.save();
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/** Looking for closest (parent) contentEditable element of focused node */
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while (focusedNode.className != cEditor.ui.BLOCK_CLASSNAME) {
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focusedNodeHolder = focusedNode.parentNode;
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focusedNode = focusedNodeHolder;
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}
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/** Founded contentEditable element doesn't have childs */
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if (focusedNode.childNodes.length === 0)
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{
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cEditor.caret.setToNextBlock(block);
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return;
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}
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/**
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* Find deepest child node
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* Iterate child nodes and find LAST DEEPEST node
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* We need to check caret positon (it must be at the end)
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* @param focusedNodeIndex is index of childnode by length
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* @param focusedTextNode is Text node founded by DFS algorithm
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*/
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var focusedTextNode = '',
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focusedNodeIndex = cEditor.caret.focusedNodeIndex + 1;
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if (focusedNodeHolder.childNodes){
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/** Looking from the END of node */
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focusedTextNode = cEditor.content.getDeepestTextNodeFromPosition(focusedNodeHolder, focusedNodeHolder.childNodes.length);
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}
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/**
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* Stop transition when caret is not at the end of Text node
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* When we click "DOWN" or "RIGHT", caret moves to the end of node.
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* We should check caret position before we transmit/switch the block.
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*/
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if ( block.childNodes.length != focusedNodeIndex || focusedTextNode.length != selection.anchorOffset) {
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return false;
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}
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cEditor.caret.setToNextBlock(block);
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},
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/**
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* LEFT or UP keydowns on block
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*/
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blockLeftOrUpArrowPressed : function (block) {
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var selection = window.getSelection(),
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focusedNode = selection.anchorNode,
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focusedNodeHolder;
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/** Check for caret existance */
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if (!focusedNode){
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return false;
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}
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/** Saving caret after keydown event happend */
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cEditor.caret.save();
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/** Looking for parent contentEditable block */
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while (focusedNode.className != cEditor.ui.BLOCK_CLASSNAME) {
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focusedNodeHolder = focusedNode.parentNode;
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focusedNode = focusedNodeHolder;
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}
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/**
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* Find deepest child node
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* Iterate child nodes and find First DEEPEST node
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* We need it to check caret positon (it must be at the begining)
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*/
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focusedNodeHolder = focusedNodeHolder || focusedNode;
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if (focusedNodeHolder.childNodes.length !== 0) {
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var focusedTextNode = '';
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if (focusedNodeHolder.childNodes){
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/** Looking from the first child */
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focusedTextNode = cEditor.content.getDeepestTextNodeFromPosition(focusedNodeHolder, 0);
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}
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}
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/**
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* When we click "UP" or "LEFT", caret behaviour is as default.
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* We should check caret position before we transmit/switch the block.
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*/
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if ( selection.anchorOffset !== 0) {
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return false;
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}
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/**
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* We can't switch block till caret is not at the begining of first node and has zero offset
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*/
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if ( (cEditor.caret.offset !== 0 || cEditor.caret.focusedNodeIndex !== 0) && focusedNodeHolder.childNodes.length !== 0 ) {
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return;
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}
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cEditor.caret.setToPreviousBlock(block);
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},
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enterPressed: function (block) {
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var selection = window.getSelection(),
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currentNode = selection.anchorNode,
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parentOfFocusedNode = currentNode.parentNode;
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/**
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* We add new block with contentEditable property if enter key is pressed.
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* First we check, if caret is at the end of last node and offset is legth of text node
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* focusedNodeIndex + 1, because that we compare non-arrays index.
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*/
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if ( currentNode.length === cEditor.caret.offset
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&& parentOfFocusedNode.childNodes.length == cEditor.caret.focusedNodeIndex + 1) {
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/** Prevent <div></div> creation */
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event.preventDefault();
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/** Create new Block and append it after current */
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var newBlock = cEditor.draw.block('p');
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newBlock.contentEditable = "true";
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newBlock.classList.add(cEditor.ui.BLOCK_CLASSNAME);
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/** Add event listeners (Keydown) for new created block */
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cEditor.ui.addBlockHandlers(newBlock);
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cEditor.core.insertAfter(block, newBlock);
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/** set focus to the current (created) block */
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cEditor.caret.setToNextBlock(block);
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cEditor.toolbar.move();
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}
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},
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backspacePressed: function (block) {
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if (block.textContent.trim()) return;
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cEditor.caret.setToPreviousBlock(block);
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block.remove();
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cEditor.toolbar.move();
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event.preventDefault();
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}
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};
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cEditor.content = {
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currentNode : null,
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/**
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* Synchronizes redactor with original textarea
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*/
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sync : function () {
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cEditor.core.log('syncing...');
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/**
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* Save redactor content to cEditor.state
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*/
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cEditor.state.html = cEditor.nodes.redactor.innerHTML;
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/**
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* Put it to the textarea
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*/
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cEditor.nodes.textarea.value = cEditor.state.html;
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},
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getNodeFocused : function() {
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var selection = window.getSelection(),
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focused;
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if (selection.anchorNode != null) {
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if ( selection.anchorNode.nodeType == cEditor.core.nodeTypes.TAG ) {
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focused = selection.anchorNode;
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} else {
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focused = selection.focusNode.parentElement;
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}
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}
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if ( !cEditor.parser.isFirstLevelBlock(focused) ) {
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focused = focused.parentElement;
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}
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if (focused != cEditor.nodes.redactor){
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return focused;
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}
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return null;
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},
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|
/**
|
|
* Trigger this event when working node changed
|
|
*/
|
|
workingNodeChanged : function (setCurrent) {
|
|
|
|
this.currentNode = setCurrent || this.getNodeFocused();
|
|
|
|
},
|
|
|
|
switchBlock : function (targetBlock, newBlockTagname) {
|
|
|
|
if (!targetBlock || !newBlockTagname) return;
|
|
|
|
var nodeToReplace;
|
|
|
|
/**
|
|
* First-level nodes replaces as-is,
|
|
* otherwise we need to replace parent node
|
|
*/
|
|
if (cEditor.parser.isFirstLevelBlock(targetBlock)) {
|
|
nodeToReplace = targetBlock;
|
|
} else {
|
|
nodeToReplace = targetBlock.parentNode;
|
|
}
|
|
|
|
/**
|
|
* Make new node with original content
|
|
*/
|
|
var nodeCreated = cEditor.draw.block(newBlockTagname, targetBlock.innerHTML);
|
|
|
|
/** Mark node as redactor block */
|
|
nodeCreated.contentEditable = "true";
|
|
nodeCreated.classList.add(cEditor.ui.BLOCK_CLASSNAME);
|
|
|
|
/**
|
|
* If it is a first-level node, replace as-is.
|
|
*/
|
|
if (cEditor.parser.isFirstLevelBlock(nodeCreated)) {
|
|
|
|
cEditor.nodes.redactor.replaceChild(nodeCreated, nodeToReplace);
|
|
|
|
/**
|
|
* Set new node as current
|
|
*/
|
|
|
|
cEditor.content.workingNodeChanged(nodeCreated);
|
|
|
|
/**
|
|
* Setting caret
|
|
*/
|
|
cEditor.caret.set(nodeCreated);
|
|
|
|
/** Add event listeners for created node */
|
|
cEditor.ui.addBlockHandlers(nodeCreated);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
/**
|
|
* If it is not a first-level node, for example LI or IMG
|
|
* we need to wrap it in block-tag (<p> or <ul>)
|
|
*/
|
|
var newNodeWrapperTagname,
|
|
newNodeWrapper;
|
|
|
|
switch (newBlockTagname){
|
|
case 'LI' : newNodeWrapperTagname = 'UL'; break;
|
|
default : newNodeWrapperTagname = 'P'; break;
|
|
}
|
|
|
|
newNodeWrapper = cEditor.draw.block(newNodeWrapperTagname);
|
|
newNodeWrapper.appendChild(nodeCreated);
|
|
|
|
|
|
cEditor.nodes.redactor.replaceChild(newNodeWrapper, nodeToReplace);
|
|
|
|
/**
|
|
* Set new node as current
|
|
*/
|
|
cEditor.content.workingNodeChanged(nodeCreated);
|
|
|
|
cEditor.caret.set(nodeCreated);
|
|
},
|
|
|
|
|
|
/**
|
|
* Iterates between child noted and looking for #text node on deepest level
|
|
* @param {Element} block - node where find
|
|
* @param {int} postiton - starting postion
|
|
* Example: childNodex.length to find from the end
|
|
* or 0 to find from the start
|
|
* @return {Text} block
|
|
* @uses DFS
|
|
*/
|
|
getDeepestTextNodeFromPosition : function (block, position) {
|
|
|
|
/**
|
|
* Clear Block from empty and useless spaces with trim.
|
|
* Such nodes we should remove
|
|
*/
|
|
var index,
|
|
blockChilds = block.childNodes;
|
|
|
|
for(index = 0; index < blockChilds.length; index++)
|
|
{
|
|
var node = blockChilds[index];
|
|
|
|
if (node.nodeType == cEditor.core.nodeTypes.TEXT) {
|
|
|
|
text = node.textContent.trim();
|
|
|
|
/** Text is empty. We should remove this child from node before we start DFS
|
|
* decrease the quantity of childs.
|
|
*/
|
|
if (text == '') {
|
|
|
|
block.removeChild(node);
|
|
position--;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (block.childNodes.length === 0) {
|
|
return document.createTextNode('');
|
|
}
|
|
|
|
/** Setting default position when we deleted all empty nodes */
|
|
if ( position < 0 )
|
|
position = 1;
|
|
|
|
var looking_from_start = false;
|
|
|
|
/** For looking from START */
|
|
if (position === 0) {
|
|
looking_from_start = true;
|
|
position = 1;
|
|
}
|
|
|
|
while ( position ) {
|
|
|
|
/** initial verticle of node. */
|
|
if ( looking_from_start ) {
|
|
block = block.childNodes[0];
|
|
} else {
|
|
block = block.childNodes[position - 1];
|
|
}
|
|
|
|
if ( block.nodeType == cEditor.core.nodeTypes.TAG ){
|
|
|
|
position = block.childNodes.length;
|
|
|
|
} else if (block.nodeType == cEditor.core.nodeTypes.TEXT ){
|
|
|
|
position = 0;
|
|
}
|
|
|
|
}
|
|
|
|
return block;
|
|
}
|
|
|
|
}
|
|
|
|
cEditor.caret = {
|
|
|
|
/**
|
|
* @var {int} offset - caret position in a text node.
|
|
*/
|
|
|
|
offset : null,
|
|
|
|
/**
|
|
* @var {int} focusedNodeIndex - we get index of child node from first-level block
|
|
*/
|
|
|
|
focusedNodeIndex: null,
|
|
|
|
/**
|
|
* We need to save caret before we change the block,
|
|
* so that we could return it to original position in a new tag.
|
|
* We save caret offset in a text and index of child node.
|
|
*/
|
|
save : function() {
|
|
|
|
var selection = window.getSelection();
|
|
var parentElement = selection.anchorNode,
|
|
previousElement = selection.anchorNode.previousSibling,
|
|
nodeIndex = 0;
|
|
|
|
/**
|
|
* We get index of node which is child of #BLOCK_CLASSNAME.
|
|
* if selected node is not below the block container, we get the closest TAG which is below #BLOCK_CLASSNAME
|
|
*/
|
|
if ( parentElement.className !== cEditor.ui.BLOCK_CLASSNAME ) {
|
|
|
|
while (parentElement.parentNode.className !== cEditor.ui.BLOCK_CLASSNAME) {
|
|
|
|
parentElement = parentElement.parentNode;
|
|
|
|
}
|
|
|
|
previousElement = parentElement.previousSibling;
|
|
}
|
|
|
|
/** Counting index of focused node */
|
|
while (previousElement != null) {
|
|
|
|
nodeIndex ++;
|
|
previousElement = previousElement.previousSibling;
|
|
|
|
}
|
|
|
|
this.offset = selection.anchorOffset;
|
|
this.focusedNodeIndex = nodeIndex;
|
|
|
|
},
|
|
|
|
/**
|
|
* Creates Document Range and sets caret to the element.
|
|
* @uses caret.save — if you need to save caret position
|
|
* @param {Element} el - Changed Node.
|
|
* @todo remove saving positon
|
|
* @todo - Check nodeToSet for type: if TAG -> look for nearest TextNode
|
|
*/
|
|
set : function( el , index, offset) {
|
|
|
|
offset = offset || this.offset || 0;
|
|
index = index || this.focusedNodeIndex || 0;
|
|
|
|
var childs = el.childNodes,
|
|
nodeToSet;
|
|
|
|
if ( childs.length === 0 ) {
|
|
|
|
nodeToSet = el;
|
|
|
|
} else {
|
|
|
|
nodeToSet = childs[index];
|
|
|
|
}
|
|
|
|
var range = document.createRange(),
|
|
selection = window.getSelection();
|
|
|
|
setTimeout(function() {
|
|
|
|
range.setStart(nodeToSet, offset);
|
|
range.setEnd(nodeToSet, offset);
|
|
|
|
selection.removeAllRanges();
|
|
selection.addRange(range);
|
|
|
|
}, 50);
|
|
},
|
|
|
|
/**
|
|
* @param {Element} - block element where we should find caret position
|
|
*/
|
|
get : function (el) {
|
|
|
|
},
|
|
|
|
/**
|
|
* @param {Element} block - element from which we take next block
|
|
*/
|
|
setToNextBlock : function(block) {
|
|
|
|
if ( !block.nextSibling ) {
|
|
return false;
|
|
}
|
|
|
|
cEditor.caret.offset = 0;
|
|
cEditor.caret.focusedNodeIndex = 0;
|
|
|
|
cEditor.caret.set(block.nextSibling, 0, 0);
|
|
cEditor.content.workingNodeChanged(block.nextSibling);
|
|
},
|
|
|
|
setToPreviousBlock : function(block) {
|
|
|
|
if ( !block.previousSibling ) {
|
|
return false;
|
|
}
|
|
|
|
var lastChildOfPreiviousBlockIndex = block.previousSibling.childNodes.length,
|
|
previousBlock = block.previousSibling,
|
|
theEndOfPreviousBlockLastNode = 0;
|
|
|
|
/** Index in childs Array */
|
|
if (block.previousSibling.childNodes.length !== 0) {
|
|
|
|
previousBlock = cEditor.content.getDeepestTextNodeFromPosition(block.previousSibling, lastChildOfPreiviousBlockIndex);
|
|
theEndOfPreviousBlockLastNode = previousBlock.length;
|
|
lastChildOfPreiviousBlockIndex = 0;
|
|
|
|
}
|
|
|
|
cEditor.caret.offset = theEndOfPreviousBlockLastNode;
|
|
cEditor.caret.focusedNodeIndex = lastChildOfPreiviousBlockIndex;
|
|
|
|
cEditor.caret.set(previousBlock, lastChildOfPreiviousBlockIndex, theEndOfPreviousBlockLastNode);
|
|
|
|
cEditor.content.workingNodeChanged(block.previousSibling);
|
|
},
|
|
};
|
|
|
|
cEditor.toolbar = {
|
|
|
|
/**
|
|
* Margin between focused node and toolbar
|
|
*/
|
|
defaultToolbarHeight : 43,
|
|
|
|
defaultOffset : 10,
|
|
|
|
opened : false,
|
|
|
|
current : null,
|
|
|
|
open : function (){
|
|
|
|
if (this.opened) {
|
|
return;
|
|
}
|
|
|
|
cEditor.nodes.toolbar.classList.add('opened');
|
|
this.opened = true;
|
|
|
|
},
|
|
|
|
close : function(){
|
|
|
|
cEditor.nodes.toolbar.classList.remove('opened');
|
|
|
|
this.opened = false;
|
|
this.current = null;
|
|
for (var button in cEditor.nodes.toolbarButtons){
|
|
cEditor.nodes.toolbarButtons[button].classList.remove('selected');
|
|
}
|
|
|
|
},
|
|
|
|
toggle : function(){
|
|
|
|
if ( !this.opened ){
|
|
|
|
this.open();
|
|
|
|
} else {
|
|
|
|
this.close();
|
|
|
|
}
|
|
|
|
},
|
|
|
|
leaf : function(){
|
|
|
|
var currentTool = this.current,
|
|
tools = cEditor.settings.tools,
|
|
barButtons = cEditor.nodes.toolbarButtons,
|
|
nextToolIndex,
|
|
toolToSelect;
|
|
|
|
if ( !currentTool ) {
|
|
|
|
/** Get first tool from object*/
|
|
for (toolToSelect in barButtons) break;
|
|
|
|
} else {
|
|
|
|
nextToolIndex = tools.indexOf(currentTool) + 1;
|
|
|
|
if ( nextToolIndex == tools.length) nextToolIndex = 0;
|
|
|
|
toolToSelect = tools[nextToolIndex];
|
|
|
|
}
|
|
|
|
for (var button in barButtons) barButtons[button].classList.remove('selected');
|
|
|
|
barButtons[toolToSelect].classList.add('selected');
|
|
|
|
this.current = toolToSelect;
|
|
|
|
},
|
|
|
|
/**
|
|
* Transforming selected node type into selected toolbar element type
|
|
* @param {event} event
|
|
*/
|
|
toolClicked : function() {
|
|
|
|
var workingNode = cEditor.content.currentNode,
|
|
newTag,
|
|
appendCallback;
|
|
|
|
switch (cEditor.toolbar.current) {
|
|
case 'paragraph' : newTag = 'P'; break;
|
|
case 'header' : newTag = 'H1'; break;
|
|
case 'quote' : newTag = 'BLOCKQUOTE'; break;
|
|
case 'code' : newTag = 'CODE'; break;
|
|
case 'list' : newTag = 'LI'; break;
|
|
}
|
|
|
|
cEditor.content.switchBlock(workingNode, newTag);
|
|
|
|
/** Fire tool append callback */
|
|
appendCallback = cEditor.tools[cEditor.toolbar.current].appendCallback;
|
|
|
|
if (appendCallback && typeof appendCallback == 'function') {
|
|
appendCallback.call();
|
|
}
|
|
|
|
|
|
},
|
|
|
|
|
|
/**
|
|
* Moving toolbar to the specified node
|
|
*/
|
|
move : function() {
|
|
|
|
if (!cEditor.content.currentNode) {
|
|
return;
|
|
}
|
|
|
|
var toolbarHeight = cEditor.nodes.toolbar.clientHeight || cEditor.toolbar.defaultToolbarHeight,
|
|
newYCoordinate = cEditor.content.currentNode.offsetTop - cEditor.toolbar.defaultOffset - toolbarHeight;
|
|
|
|
cEditor.nodes.toolbar.style.transform = "translateY(" + newYCoordinate + "px)";
|
|
|
|
},
|
|
|
|
};
|
|
|
|
/**
|
|
* Content parsing module
|
|
*/
|
|
cEditor.parser = {
|
|
|
|
/**
|
|
* Asynchronously parses textarea input string to HTML editor blocks
|
|
*/
|
|
parseTextareaContent : function () {
|
|
|
|
var initialContent = cEditor.nodes.textarea.value;
|
|
|
|
if ( initialContent.trim().length === 0 ) return true;
|
|
|
|
|
|
cEditor.parser
|
|
|
|
/** Get child nodes async-aware */
|
|
.getNodesFromString(initialContent)
|
|
|
|
/** Then append nodes to the redactor */
|
|
.then(cEditor.parser.appendNodesToRedactor)
|
|
|
|
/** Write log if something goes wrong */
|
|
.catch(function(error) {
|
|
cEditor.core.log('Error while parsing content: %o', 'warn', error);
|
|
});
|
|
|
|
},
|
|
|
|
/**
|
|
* Parses string to nodeList
|
|
* @param string inputString
|
|
* @return Primise -> nodeList
|
|
*/
|
|
getNodesFromString : function (inputString) {
|
|
|
|
return Promise.resolve().then(function() {
|
|
|
|
var contentHolder = document.createElement('div');
|
|
|
|
contentHolder.innerHTML = inputString;
|
|
|
|
/**
|
|
* Returning childNodes will include:
|
|
* - Elements (html-tags),
|
|
* - Texts (empty-spaces or non-wrapped strings )
|
|
* - Comments and other
|
|
*/
|
|
return contentHolder.childNodes;
|
|
|
|
});
|
|
},
|
|
|
|
/**
|
|
* Appends nodes to the redactor
|
|
* @param nodeList nodes - list for nodes to append
|
|
*/
|
|
appendNodesToRedactor : function(nodes) {
|
|
|
|
/**
|
|
* Sequence of one-by-one nodes appending
|
|
* Uses to save blocks order after async-handler
|
|
*/
|
|
var nodeSequence = Promise.resolve();
|
|
|
|
|
|
for (var index = 0; index < nodes.length ; index++ ) {
|
|
|
|
/** Add node to sequence at specified index */
|
|
cEditor.parser.appendNodeAtIndex(nodeSequence, nodes, index);
|
|
|
|
}
|
|
|
|
},
|
|
|
|
/**
|
|
* Append node at specified index
|
|
*/
|
|
appendNodeAtIndex : function (nodeSequence, nodes, index) {
|
|
|
|
/** We need to append node to sequence */
|
|
nodeSequence
|
|
|
|
/** first, get node async-aware */
|
|
.then(function() {
|
|
|
|
return cEditor.parser.getNodeAsync(nodes , index);
|
|
|
|
})
|
|
|
|
/**
|
|
* second, compose editor-block from node
|
|
* and append it to redactor
|
|
*/
|
|
.then(function(node){
|
|
|
|
var block = cEditor.parser.createBlockByDomNode(node);
|
|
|
|
if ( cEditor.core.isDomNode(block) ) {
|
|
|
|
block.contentEditable = "true";
|
|
|
|
/** Mark node as redactor block*/
|
|
block.classList.add('ce_block');
|
|
|
|
/** Append block to the redactor */
|
|
cEditor.nodes.redactor.appendChild(block);
|
|
|
|
/** Save block to the cEditor.state array */
|
|
cEditor.state.blocks.push(block);
|
|
|
|
return block;
|
|
|
|
}
|
|
return null;
|
|
})
|
|
.then(cEditor.ui.addBlockHandlers)
|
|
|
|
/** Log if something wrong with node */
|
|
.catch(function(error) {
|
|
cEditor.core.log('Node skipped while parsing because %o', 'warn', error);
|
|
});
|
|
|
|
},
|
|
|
|
/**
|
|
* Asynchronously returns node from nodeList by index
|
|
* @return Promise to node
|
|
*/
|
|
getNodeAsync : function (nodeList, index) {
|
|
|
|
return Promise.resolve().then(function() {
|
|
|
|
return nodeList.item(index);
|
|
|
|
});
|
|
},
|
|
|
|
/**
|
|
* Creates editor block by DOM node
|
|
*
|
|
* First-level blocks (see cEditor.settings.blockTags) saves as-is,
|
|
* other wrapps with <p>-tag
|
|
*
|
|
* @param DOMnode node
|
|
* @return First-level node (paragraph)
|
|
*/
|
|
createBlockByDomNode : function (node) {
|
|
|
|
/** First level nodes already appears as blocks */
|
|
if ( cEditor.parser.isFirstLevelBlock(node) ){
|
|
return node;
|
|
}
|
|
|
|
/** Other nodes wraps into parent block (paragraph-tag) */
|
|
var parentBlock,
|
|
nodeContent = node.textContent.trim(),
|
|
isPlainTextNode = node.nodeType != cEditor.core.nodeTypes.TAG;
|
|
|
|
|
|
/** Skip empty textNodes with space-symbols */
|
|
if (isPlainTextNode && !nodeContent.length) return null;
|
|
|
|
/** Make <p> tag */
|
|
parentBlock = cEditor.draw.block('P');
|
|
|
|
if (isPlainTextNode){
|
|
parentBlock.textContent = nodeContent.replace(/(\s){2,}/, '$1'); // remove double spaces
|
|
} else {
|
|
parentBlock.appendChild(node);
|
|
}
|
|
|
|
return parentBlock;
|
|
|
|
},
|
|
|
|
/**
|
|
* Check DOM node for display style: separated block or child-view
|
|
*/
|
|
isFirstLevelBlock : function (node) {
|
|
|
|
return node.nodeType == cEditor.core.nodeTypes.TAG &&
|
|
cEditor.settings.blockTags.indexOf(node.tagName) !== -1;
|
|
|
|
}
|
|
|
|
};
|
|
|
|
cEditor.tools = {
|
|
|
|
paragraph : {
|
|
|
|
type : 'paragraph',
|
|
iconClassname : 'ce_icon-smile',
|
|
append : document.createElement('P'),
|
|
appendCallback : function () {
|
|
console.log('paragraph added');
|
|
},
|
|
settings : null,
|
|
|
|
},
|
|
|
|
header : {
|
|
|
|
type : 'header',
|
|
iconClassname : 'ce_icon-header',
|
|
append : document.createElement('H2'),
|
|
appendCallback : function () {
|
|
console.log('header added');
|
|
},
|
|
settings : null,
|
|
|
|
},
|
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|
|
quote : {
|
|
|
|
type : 'quote',
|
|
iconClassname : 'ce_icon-quote',
|
|
append : document.createElement('BLOCKQUOTE'),
|
|
appendCallback : function () {
|
|
console.log('quote added');
|
|
},
|
|
settings : null,
|
|
|
|
},
|
|
|
|
code : {
|
|
|
|
type : 'code',
|
|
iconClassname : 'ce_icon-code',
|
|
append : document.createElement('CODE'),
|
|
appendCallback : function () {
|
|
console.log('code added');
|
|
},
|
|
settings : null,
|
|
|
|
},
|
|
|
|
list : {
|
|
|
|
type : 'code',
|
|
iconClassname : 'ce_icon-list',
|
|
append : document.createElement('LI'),
|
|
appendCallback : function () {
|
|
console.log('code added');
|
|
},
|
|
settings : null,
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
* Creates HTML elements
|
|
*/
|
|
cEditor.draw = {
|
|
|
|
/**
|
|
* Base editor wrapper
|
|
*/
|
|
wrapper : function () {
|
|
|
|
var wrapper = document.createElement('div');
|
|
|
|
wrapper.className += 'ce_wrapper';
|
|
|
|
return wrapper;
|
|
|
|
},
|
|
|
|
/**
|
|
* Content-editable holder
|
|
*/
|
|
redactor : function () {
|
|
|
|
var redactor = document.createElement('div');
|
|
|
|
redactor.className += 'ce_redactor';
|
|
|
|
return redactor;
|
|
|
|
},
|
|
|
|
/**
|
|
* Empty toolbar with toggler
|
|
*/
|
|
toolbar : function () {
|
|
|
|
var bar = document.createElement('div');
|
|
|
|
bar.className += 'ce_toolbar';
|
|
|
|
/** Toggler button*/
|
|
bar.innerHTML = '<span class="toggler">' +
|
|
'<i class="plus_btn ce_icon-plus-circled-1"></i>'+
|
|
'</span>';
|
|
return bar;
|
|
},
|
|
|
|
/**
|
|
* Toolbar button
|
|
*/
|
|
toolbarButton : function (type, classname) {
|
|
|
|
var button = document.createElement("li");
|
|
|
|
button.dataset.type = type;
|
|
button.innerHTML = '<i class="' + classname + '"></i>';
|
|
|
|
return button;
|
|
|
|
},
|
|
|
|
/**
|
|
* Redactor block
|
|
*/
|
|
block : function (tagName, content) {
|
|
|
|
var node = document.createElement(tagName);
|
|
|
|
node.innerHTML = content || '';
|
|
|
|
return node;
|
|
|
|
}
|
|
|
|
|
|
}
|