mirror of
https://github.com/codex-team/editor.js
synced 2024-05-23 00:32:28 +02:00
869 lines
24 KiB
JavaScript
869 lines
24 KiB
JavaScript
/**
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* Codex Editor callbacks module
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*
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* @author Codex Team
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* @version 1.3.4
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*/
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var callbacks = (function(callbacks) {
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callbacks.redactorSyncTimeout = null;
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callbacks.globalKeydown = function(event){
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switch (event.keyCode){
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case codex.core.keys.ENTER : codex.callback.enterKeyPressed(event); break;
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}
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};
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callbacks.redactorKeyDown = function(event) {
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switch (event.keyCode){
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case codex.core.keys.TAB : codex.callback.tabKeyPressed(event); break;
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case codex.core.keys.ENTER : codex.callback.enterKeyPressedOnRedactorZone(event); break;
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case codex.core.keys.ESC : codex.callback.escapeKeyPressed(event); break;
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default : codex.callback.defaultKeyPressed(event); break;
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}
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};
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callbacks.globalKeyup = function(event){
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switch (event.keyCode){
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case codex.core.keys.UP :
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case codex.core.keys.LEFT :
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case codex.core.keys.RIGHT :
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case codex.core.keys.DOWN : codex.callback.arrowKeyPressed(event); break;
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}
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};
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callbacks.tabKeyPressed = function(event){
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if ( !codex.toolbar.opened ) {
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codex.toolbar.open();
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}
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if (codex.toolbar.opened && !codex.toolbar.toolbox.opened) {
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codex.toolbar.toolbox.open();
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} else {
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codex.toolbar.toolbox.leaf();
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}
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event.preventDefault();
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};
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callbacks.enterKeyPressed = function(event) {
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if (codex.content.editorAreaHightlighted) {
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/**
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* it means that we lose input index, saved index before is not correct
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* therefore we need to set caret when we insert new block
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*/
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codex.caret.inputIndex = -1;
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codex.callback.enterPressedOnBlock();
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}
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};
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/**
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* ENTER key handler
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* Makes new paragraph block
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*/
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callbacks.enterKeyPressedOnRedactorZone = function(event){
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if (event.target.contentEditable == 'true') {
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/** Update input index */
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codex.caret.saveCurrentInputIndex();
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}
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var currentInputIndex = codex.caret.getCurrentInputIndex() || 0,
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workingNode = codex.content.currentNode,
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tool = workingNode.dataset.tool,
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isEnterPressedOnToolbar = codex.toolbar.opened &&
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codex.toolbar.current &&
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event.target == codex.state.inputs[currentInputIndex];
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/** The list of tools which needs the default browser behaviour */
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var enableLineBreaks = codex.tools[tool].enableLineBreaks;
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/** This type of block creates when enter is pressed */
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var NEW_BLOCK_TYPE = codex.settings.initialBlockPlugin;
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/**
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* When toolbar is opened, select tool instead of making new paragraph
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*/
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if ( isEnterPressedOnToolbar ) {
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event.preventDefault();
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codex.toolbar.toolbox.toolClicked(event);
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codex.toolbar.close();
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/**
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* Stop other listeners callback executions
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*/
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event.stopPropagation();
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event.stopImmediatePropagation();
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return;
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}
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/**
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* Allow paragraph lineBreaks with shift enter
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* Or if shiftkey pressed and enter and enabledLineBreaks, the let new block creation
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*/
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if ( event.shiftKey || enableLineBreaks ){
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event.stopPropagation();
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event.stopImmediatePropagation();
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return;
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}
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var isLastTextNode = false,
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currentSelection = window.getSelection(),
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currentSelectedNode = currentSelection.anchorNode,
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caretAtTheEndOfText = codex.caret.position.atTheEnd(),
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isTextNodeHasParentBetweenContenteditable = false;
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/**
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* Allow making new <p> in same block by SHIFT+ENTER and forbids to prevent default browser behaviour
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*/
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if ( event.shiftKey && !enableLineBreaks ) {
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codex.callback.enterPressedOnBlock(codex.content.currentBlock, event);
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event.preventDefault();
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return;
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}
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/**
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* Workaround situation when caret at the Text node that has some wrapper Elements
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* Split block cant handle this.
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* We need to save default behavior
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*/
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isTextNodeHasParentBetweenContenteditable = currentSelectedNode && currentSelectedNode.parentNode.contentEditable != "true";
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/**
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* Split blocks when input has several nodes and caret placed in textNode
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*/
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if (
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currentSelectedNode.nodeType == codex.core.nodeTypes.TEXT &&
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!isTextNodeHasParentBetweenContenteditable &&
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!caretAtTheEndOfText
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){
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event.preventDefault();
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codex.core.log('Splitting Text node...');
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codex.content.splitBlock(currentInputIndex);
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/** Show plus button when next input after split is empty*/
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if (!codex.state.inputs[currentInputIndex + 1].textContent.trim()) {
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codex.toolbar.showPlusButton();
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}
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} else {
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var islastNode = codex.content.isLastNode(currentSelectedNode);
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if ( islastNode && caretAtTheEndOfText ) {
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event.preventDefault();
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event.stopPropagation();
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event.stopImmediatePropagation();
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codex.core.log('ENTER clicked in last textNode. Create new BLOCK');
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codex.content.insertBlock({
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type: NEW_BLOCK_TYPE,
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block: codex.tools[NEW_BLOCK_TYPE].render()
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}, true);
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codex.toolbar.move();
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codex.toolbar.open();
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/** Show plus button with empty block */
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codex.toolbar.showPlusButton();
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}
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}
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/** get all inputs after new appending block */
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codex.ui.saveInputs();
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};
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callbacks.escapeKeyPressed = function(event){
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/** Close all toolbar */
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codex.toolbar.close();
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/** Close toolbox */
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codex.toolbar.toolbox.close();
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event.preventDefault();
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};
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callbacks.arrowKeyPressed = function(event){
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codex.content.workingNodeChanged();
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/* Closing toolbar */
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codex.toolbar.close();
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codex.toolbar.move();
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};
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callbacks.defaultKeyPressed = function(event) {
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codex.toolbar.close();
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if (!codex.toolbar.inline.actionsOpened) {
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codex.toolbar.inline.close();
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codex.content.clearMark();
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}
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};
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callbacks.redactorClicked = function (event) {
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callbacks.detectWhenClickedOnFirstLevelBlockArea();
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codex.content.workingNodeChanged(event.target);
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codex.ui.saveInputs();
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var selectedText = codex.toolbar.inline.getSelectionText();
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/**
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* If selection range took off, then we hide inline toolbar
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*/
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if (selectedText.length === 0) {
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codex.toolbar.inline.close();
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}
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/** Update current input index in memory when caret focused into existed input */
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if (event.target.contentEditable == 'true') {
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codex.caret.saveCurrentInputIndex();
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}
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if (codex.content.currentNode === null) {
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/**
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* If inputs in redactor does not exits, then we put input index 0 not -1
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*/
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var indexOfLastInput = codex.state.inputs.length > 0 ? codex.state.inputs.length - 1 : 0;
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/** If we have any inputs */
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if (codex.state.inputs.length) {
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/** getting firstlevel parent of input */
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var firstLevelBlock = codex.content.getFirstLevelBlock(codex.state.inputs[indexOfLastInput]);
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}
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/** If input is empty, then we set caret to the last input */
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if (codex.state.inputs.length && codex.state.inputs[indexOfLastInput].textContent === '' && firstLevelBlock.dataset.tool == codex.settings.initialBlockPlugin) {
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codex.caret.setToBlock(indexOfLastInput);
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} else {
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/** Create new input when caret clicked in redactors area */
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var NEW_BLOCK_TYPE = codex.settings.initialBlockPlugin;
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codex.content.insertBlock({
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type : NEW_BLOCK_TYPE,
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block : codex.tools[NEW_BLOCK_TYPE].render()
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});
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/** If there is no inputs except inserted */
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if (codex.state.inputs.length === 1) {
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codex.caret.setToBlock(indexOfLastInput);
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} else {
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/** Set caret to this appended input */
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codex.caret.setToNextBlock(indexOfLastInput);
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}
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}
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/**
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* Move toolbar to the right position and open
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*/
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codex.toolbar.move();
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codex.toolbar.open();
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} else {
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/**
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* Move toolbar to the new position and open
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*/
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codex.toolbar.move();
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codex.toolbar.open();
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/** Close all panels */
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codex.toolbar.settings.close();
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codex.toolbar.toolbox.close();
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}
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var inputIsEmpty = !codex.content.currentNode.textContent.trim();
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if (inputIsEmpty) {
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/** Show plus button */
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codex.toolbar.showPlusButton();
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} else {
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/** Hide plus buttons */
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codex.toolbar.hidePlusButton();
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}
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var currentNodeType = codex.content.currentNode.dataset.tool;
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/** Mark current block*/
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if (currentNodeType != codex.settings.initialBlockPlugin || !inputIsEmpty) {
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codex.content.markBlock();
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}
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};
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/**
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* This method allows to define, is caret in contenteditable element or not.
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* Otherwise, if we get TEXT node from range container, that will means we have input index.
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* In this case we use default browsers behaviour (if plugin allows that) or overwritten action.
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* Therefore, to be sure that we've clicked first-level block area, we should have currentNode, which always
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* specifies to the first-level block. Other cases we just ignore.
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*/
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callbacks.detectWhenClickedOnFirstLevelBlockArea = function() {
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var selection = window.getSelection(),
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anchorNode = selection.anchorNode,
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flag = false;
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if (selection.rangeCount == 0) {
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codex.content.editorAreaHightlighted = true;
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} else {
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if (!codex.core.isDomNode(anchorNode)) {
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anchorNode = anchorNode.parentNode;
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}
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/** Already founded, without loop */
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if (anchorNode.contentEditable == 'true') {
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flag = true;
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}
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while (anchorNode.contentEditable != 'true') {
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anchorNode = anchorNode.parentNode;
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if (anchorNode.contentEditable == 'true') {
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flag = true;
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}
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if (anchorNode == document.body) {
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break;
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}
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}
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/** If editable element founded, flag is "TRUE", Therefore we return "FALSE" */
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codex.content.editorAreaHightlighted = flag ? false : true;
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}
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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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callbacks.toolbarButtonClicked = function (event) {
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var button = this;
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codex.toolbar.current = button.dataset.type;
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codex.toolbar.toolbox.toolClicked(event);
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codex.toolbar.close();
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};
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callbacks.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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codex.content.sync();
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}, 500);
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};
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/** Show or Hide toolbox when plus button is clicked */
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callbacks.plusButtonClicked = function() {
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if (!codex.nodes.toolbox.classList.contains('opened')) {
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codex.toolbar.toolbox.open();
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} else {
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codex.toolbar.toolbox.close();
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}
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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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callbacks.blockKeydown = function(event, block) {
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switch (event.keyCode){
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case codex.core.keys.DOWN:
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case codex.core.keys.RIGHT:
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codex.callback.blockRightOrDownArrowPressed(block);
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break;
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case codex.core.keys.BACKSPACE:
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codex.callback.backspacePressed(block);
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break;
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case codex.core.keys.UP:
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case codex.core.keys.LEFT:
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codex.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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callbacks.blockRightOrDownArrowPressed = function (block) {
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var selection = window.getSelection(),
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inputs = codex.state.inputs,
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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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/** Looking for closest (parent) contentEditable element of focused node */
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while (focusedNode.contentEditable != 'true') {
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focusedNodeHolder = focusedNode.parentNode;
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focusedNode = focusedNodeHolder;
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}
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/** Input index in DOM level */
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var editableElementIndex = 0;
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while (focusedNode != inputs[editableElementIndex]) {
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editableElementIndex ++;
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}
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/**
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* Founded contentEditable element doesn't have childs
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* Or maybe New created block
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*/
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if (!focusedNode.textContent)
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{
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codex.caret.setToNextBlock(editableElementIndex);
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return;
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}
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/**
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* Do nothing when caret doesn not reaches the end of last child
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*/
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var caretInLastChild = false,
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caretAtTheEndOfText = false;
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var lastChild,
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deepestTextnode;
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lastChild = focusedNode.childNodes[focusedNode.childNodes.length - 1 ];
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if (codex.core.isDomNode(lastChild)) {
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deepestTextnode = codex.content.getDeepestTextNodeFromPosition(lastChild, lastChild.childNodes.length);
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} else {
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deepestTextnode = lastChild;
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}
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caretInLastChild = selection.anchorNode == deepestTextnode;
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caretAtTheEndOfText = deepestTextnode.length == selection.anchorOffset;
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if ( !caretInLastChild || !caretAtTheEndOfText ) {
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codex.core.log('arrow [down|right] : caret does not reached the end');
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return false;
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}
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codex.caret.setToNextBlock(editableElementIndex);
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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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callbacks.blockLeftOrUpArrowPressed = function (block) {
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var selection = window.getSelection(),
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inputs = codex.state.inputs,
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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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/**
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* LEFT or UP not at the beginning
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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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/** Looking for parent contentEditable block */
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while (focusedNode.contentEditable != 'true') {
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focusedNodeHolder = focusedNode.parentNode;
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focusedNode = focusedNodeHolder;
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}
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/** Input index in DOM level */
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var editableElementIndex = 0;
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while (focusedNode != inputs[editableElementIndex]) {
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editableElementIndex ++;
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}
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/**
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* Do nothing if caret is not at the beginning of first child
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*/
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var caretInFirstChild = false,
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caretAtTheBeginning = false;
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var firstChild,
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deepestTextnode;
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/**
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* Founded contentEditable element doesn't have childs
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* Or maybe New created block
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*/
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if (!focusedNode.textContent) {
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codex.caret.setToPreviousBlock(editableElementIndex);
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return;
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}
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firstChild = focusedNode.childNodes[0];
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if (codex.core.isDomNode(firstChild)) {
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deepestTextnode = codex.content.getDeepestTextNodeFromPosition(firstChild, 0);
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} else {
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deepestTextnode = firstChild;
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}
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caretInFirstChild = selection.anchorNode == deepestTextnode;
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caretAtTheBeginning = selection.anchorOffset === 0;
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if ( caretInFirstChild && caretAtTheBeginning ) {
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codex.caret.setToPreviousBlock(editableElementIndex);
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}
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};
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/**
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* Callback for enter key pressing in first-level block area
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*/
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callbacks.enterPressedOnBlock = function (event) {
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var NEW_BLOCK_TYPE = codex.settings.initialBlockPlugin;
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codex.content.insertBlock({
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type : NEW_BLOCK_TYPE,
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block : codex.tools[NEW_BLOCK_TYPE].render()
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}, true );
|
|
|
|
codex.toolbar.move();
|
|
codex.toolbar.open();
|
|
|
|
};
|
|
|
|
callbacks.backspacePressed = function (block) {
|
|
|
|
var currentInputIndex = codex.caret.getCurrentInputIndex(),
|
|
range,
|
|
selectionLength,
|
|
firstLevelBlocksCount;
|
|
|
|
if (block.textContent.trim()) {
|
|
|
|
range = codex.content.getRange();
|
|
selectionLength = range.endOffset - range.startOffset;
|
|
|
|
|
|
if (codex.caret.position.atStart() && !selectionLength && codex.state.inputs[currentInputIndex - 1]) {
|
|
|
|
codex.content.mergeBlocks(currentInputIndex);
|
|
|
|
} else {
|
|
|
|
return;
|
|
|
|
}
|
|
}
|
|
|
|
if (!selectionLength) {
|
|
block.remove();
|
|
}
|
|
|
|
|
|
firstLevelBlocksCount = codex.nodes.redactor.childNodes.length;
|
|
|
|
/**
|
|
* If all blocks are removed
|
|
*/
|
|
if (firstLevelBlocksCount === 0) {
|
|
|
|
/** update currentNode variable */
|
|
codex.content.currentNode = null;
|
|
|
|
/** Inserting new empty initial block */
|
|
codex.ui.addInitialBlock();
|
|
|
|
/** Updating inputs state after deleting last block */
|
|
codex.ui.saveInputs();
|
|
|
|
/** Set to current appended block */
|
|
setTimeout(function () {
|
|
|
|
codex.caret.setToPreviousBlock(1);
|
|
|
|
}, 10);
|
|
|
|
} else {
|
|
|
|
if (codex.caret.inputIndex !== 0) {
|
|
|
|
/** Target block is not first */
|
|
codex.caret.setToPreviousBlock(codex.caret.inputIndex);
|
|
|
|
} else {
|
|
|
|
/** If we try to delete first block */
|
|
codex.caret.setToNextBlock(codex.caret.inputIndex);
|
|
|
|
}
|
|
}
|
|
|
|
codex.toolbar.move();
|
|
|
|
if (!codex.toolbar.opened) {
|
|
codex.toolbar.open();
|
|
}
|
|
|
|
/** Updating inputs state */
|
|
codex.ui.saveInputs();
|
|
|
|
/** Prevent default browser behaviour */
|
|
event.preventDefault();
|
|
|
|
};
|
|
|
|
/**
|
|
* @deprecated
|
|
*
|
|
* @param event
|
|
*/
|
|
callbacks.blockPaste = function(event) {
|
|
|
|
var currentInputIndex = codex.caret.getCurrentInputIndex(),
|
|
node = codex.state.inputs[currentInputIndex];
|
|
|
|
setTimeout(function() {
|
|
|
|
codex.content.sanitize(node);
|
|
|
|
event.preventDefault();
|
|
|
|
}, 10);
|
|
|
|
event.stopImmediatePropagation();
|
|
|
|
};
|
|
|
|
/**
|
|
* This method is used to observe pasted dirty data.
|
|
*
|
|
* Mutation handlers send to separate observers each mutation (added, changed and so on), which will be
|
|
* passed from handler that sanitizes and replaces data.
|
|
*
|
|
* Probably won't be used
|
|
*
|
|
* @deprecated
|
|
*
|
|
* @param event
|
|
* @private
|
|
*/
|
|
callbacks._blockPasteCallback = function(event) {
|
|
|
|
var currentInputIndex = codex.caret.getCurrentInputIndex();
|
|
|
|
/**
|
|
* create an observer instance
|
|
*/
|
|
var observer = new MutationObserver(codex.callback.handleMutationsOnPaste);
|
|
|
|
/**
|
|
* configuration of the observer:
|
|
*/
|
|
var config = {
|
|
attributes: true,
|
|
childList: false,
|
|
characterData: false,
|
|
subtree : true
|
|
};
|
|
|
|
// pass in the target node, as well as the observer options
|
|
observer.observe(codex.state.inputs[currentInputIndex], config);
|
|
};
|
|
|
|
/**
|
|
* This method prevents default behaviour.
|
|
*
|
|
* We get from clipboard pasted data, sanitize, make a fragment that contains of this sanitized nodes.
|
|
* Firstly, we need to memorize the caret position. We can do that by getting the range of selection.
|
|
* After all, we insert clear fragment into caret placed position. Then, we should move the caret to the last node
|
|
*
|
|
* @param event
|
|
*/
|
|
callbacks.blockPasteCallback = function(event) {
|
|
|
|
/** Prevent default behaviour */
|
|
event.preventDefault();
|
|
|
|
/** get html pasted data - dirty data */
|
|
var data = event.clipboardData.getData('text/html');
|
|
|
|
/** Temporary DIV that is used to work with childs as arrays item */
|
|
var div = codex.draw.node('DIV', '', {}),
|
|
cleaner = new codex.sanitizer.init(codex.sanitizer.Config.BASIC),
|
|
cleanData,
|
|
fragment;
|
|
|
|
/** Create fragment, that we paste to range after proccesing */
|
|
fragment = document.createDocumentFragment();
|
|
|
|
cleanData = cleaner.clean(data);
|
|
|
|
div.innerHTML = cleanData;
|
|
|
|
var node, lastNode;
|
|
|
|
/**
|
|
* and fill in fragment
|
|
*/
|
|
while (( node = div.firstChild) ) {
|
|
lastNode = fragment.appendChild(node);
|
|
}
|
|
|
|
/**
|
|
* work with selection and range
|
|
*/
|
|
var selection, range;
|
|
selection = window.getSelection();
|
|
|
|
range = selection.getRangeAt(0);
|
|
range.deleteContents();
|
|
|
|
range.insertNode(fragment);
|
|
// document.execCommand('insertParagraph', false, "<p>");
|
|
|
|
/** Preserve the selection */
|
|
if (lastNode) {
|
|
range = range.cloneRange();
|
|
range.setStartAfter(lastNode);
|
|
range.collapse(true);
|
|
selection.removeAllRanges();
|
|
selection.addRange(range);
|
|
}
|
|
|
|
};
|
|
|
|
/**
|
|
* Sends all mutations to paste handler
|
|
*/
|
|
callbacks.handleMutationsOnPaste = function(mutations) {
|
|
|
|
var self = this;
|
|
|
|
/**
|
|
* Calling function with context of this function.
|
|
* Also, we should sanitize pasted or changed data one time and ignore
|
|
* changings which makes sanitize method.
|
|
* For that, we need to send Context, MutationObserver.__proto__ that contains
|
|
* observer disconnect method.
|
|
*/
|
|
mutations.forEach(function(mutation) {
|
|
codex.content.paste.call(self, mutation);
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Clicks on block settings button
|
|
*/
|
|
callbacks.showSettingsButtonClicked = function(){
|
|
|
|
/**
|
|
* Get type of current block
|
|
* It uses to append settings from tool.settings property.
|
|
* ...
|
|
* Type is stored in data-type attribute on block
|
|
*/
|
|
var currentToolType = codex.content.currentNode.dataset.tool;
|
|
|
|
codex.toolbar.settings.toggle(currentToolType);
|
|
|
|
/** Close toolbox when settings button is active */
|
|
codex.toolbar.toolbox.close();
|
|
codex.toolbar.settings.hideRemoveActions();
|
|
|
|
};
|
|
|
|
return callbacks;
|
|
|
|
})({});
|
|
|
|
module.exports = callbacks;
|