mirror of
https://github.com/codex-team/editor.js
synced 2024-04-27 20:33:03 +02:00
911 lines
23 KiB
JavaScript
911 lines
23 KiB
JavaScript
/**
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* @module Codex Editor Callbacks module
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* @description Module works with editor added Elements
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*
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* @author Codex Team
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* @version 1.4.0
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*/
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module.exports = (function (callbacks) {
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let editor = codex.editor;
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/**
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* used by UI module
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* @description Routes all keydowns on document
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* @param {Object} event
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*/
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callbacks.globalKeydown = function (event) {
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switch (event.keyCode) {
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case editor.core.keys.ENTER : enterKeyPressed_(event); break;
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}
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};
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/**
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* used by UI module
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* @description Routes all keydowns on redactors area
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* @param {Object} event
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*/
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callbacks.redactorKeyDown = function (event) {
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switch (event.keyCode) {
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case editor.core.keys.TAB : tabKeyPressedOnRedactorsZone_(event); break;
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case editor.core.keys.ENTER : enterKeyPressedOnRedactorsZone_(event); break;
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case editor.core.keys.ESC : escapeKeyPressedOnRedactorsZone_(event); break;
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default : defaultKeyPressedOnRedactorsZone_(event); break;
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}
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};
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/**
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* used by UI module
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* @description Routes all keyup events
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* @param {Object} event
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*/
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callbacks.globalKeyup = function (event) {
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switch (event.keyCode) {
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case editor.core.keys.UP :
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case editor.core.keys.LEFT :
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case editor.core.keys.RIGHT :
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case editor.core.keys.DOWN : arrowKeyPressed_(event); break;
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}
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};
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/**
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* @param {Object} event
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* @private
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*
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* Handles behaviour when tab pressed
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* @description if Content is empty show toolbox (if it is closed) or leaf tools
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* uses Toolbars toolbox module to handle the situation
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*/
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var tabKeyPressedOnRedactorsZone_ = function (event) {
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/**
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* Wait for solution. Would like to know the behaviour
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* @todo Add spaces
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*/
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event.preventDefault();
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if (!editor.core.isBlockEmpty(editor.content.currentNode)) {
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return;
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}
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if ( !editor.toolbar.opened ) {
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editor.toolbar.open();
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}
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if (editor.toolbar.opened && !editor.toolbar.toolbox.opened) {
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editor.toolbar.toolbox.open();
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} else {
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editor.toolbar.toolbox.leaf();
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}
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};
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/**
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* Handles global EnterKey Press
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* @see enterPressedOnBlock_
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* @param {Object} event
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*/
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var enterKeyPressed_ = function () {
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if (editor.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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editor.caret.inputIndex = -1;
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enterPressedOnBlock_();
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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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* @param {Event} event
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* @private
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*
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* @description Inserts new block with initial type from settings
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*/
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var enterPressedOnBlock_ = function () {
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var NEW_BLOCK_TYPE = editor.settings.initialBlockPlugin;
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editor.content.insertBlock({
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type : NEW_BLOCK_TYPE,
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block : editor.tools[NEW_BLOCK_TYPE].render()
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}, true );
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editor.toolbar.move();
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editor.toolbar.open();
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};
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/**
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* ENTER key handler
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*
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* @param {Object} event
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* @private
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*
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* @description Makes new block with initial type from settings
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*/
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var enterKeyPressedOnRedactorsZone_ = function (event) {
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if (event.target.contentEditable == 'true') {
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/** Update input index */
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editor.caret.saveCurrentInputIndex();
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}
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var currentInputIndex = editor.caret.getCurrentInputIndex() || 0,
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workingNode = editor.content.currentNode,
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tool = workingNode.dataset.tool,
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isEnterPressedOnToolbar = editor.toolbar.opened &&
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editor.toolbar.current &&
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event.target == editor.state.inputs[currentInputIndex];
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/** The list of tools which needs the default browser behaviour */
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var enableLineBreaks = editor.tools[tool].enableLineBreaks;
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/** This type of block creates when enter is pressed */
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var NEW_BLOCK_TYPE = editor.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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editor.toolbar.toolbox.toolClicked(event);
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editor.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 currentSelection = window.getSelection(),
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currentSelectedNode = currentSelection.anchorNode,
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caretAtTheEndOfText = editor.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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editor.callback.enterPressedOnBlock(editor.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 == editor.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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editor.core.log('Splitting Text node...');
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editor.content.splitBlock(currentInputIndex);
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/** Show plus button when next input after split is empty*/
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if (!editor.state.inputs[currentInputIndex + 1].textContent.trim()) {
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editor.toolbar.showPlusButton();
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}
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} else {
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var islastNode = editor.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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editor.core.log('ENTER clicked in last textNode. Create new BLOCK');
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editor.content.insertBlock({
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type: NEW_BLOCK_TYPE,
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block: editor.tools[NEW_BLOCK_TYPE].render()
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}, true);
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editor.toolbar.move();
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editor.toolbar.open();
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/** Show plus button with empty block */
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editor.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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editor.ui.saveInputs();
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};
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/**
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* Escape behaviour
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* @param event
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* @private
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*
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* @description Closes toolbox and toolbar. Prevents default behaviour
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*/
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var escapeKeyPressedOnRedactorsZone_ = function (event) {
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/** Close all toolbar */
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editor.toolbar.close();
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/** Close toolbox */
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editor.toolbar.toolbox.close();
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event.preventDefault();
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};
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/**
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* @param {Event} event
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* @private
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*
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* closes and moves toolbar
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*/
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var arrowKeyPressed_ = function (event) {
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editor.content.workingNodeChanged();
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/* Closing toolbar */
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editor.toolbar.close();
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editor.toolbar.move();
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};
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/**
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* @private
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* @param {Event} event
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*
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* @description Closes all opened bars from toolbar.
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* If block is mark, clears highlightning
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*/
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var defaultKeyPressedOnRedactorsZone_ = function () {
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editor.toolbar.close();
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if (!editor.toolbar.inline.actionsOpened) {
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editor.toolbar.inline.close();
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editor.content.clearMark();
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}
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};
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/**
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* Handler when clicked on redactors area
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*
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* @protected
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* @param event
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*
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* @description Detects clicked area. If it is first-level block area, marks as detected and
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* on next enter press will be inserted new block
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* Otherwise, save carets position (input index) and put caret to the editable zone.
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*
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* @see detectWhenClickedOnFirstLevelBlockArea_
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*
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*/
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callbacks.redactorClicked = function (event) {
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detectWhenClickedOnFirstLevelBlockArea_();
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editor.content.workingNodeChanged(event.target);
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editor.ui.saveInputs();
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var selectedText = editor.toolbar.inline.getSelectionText(),
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firstLevelBlock;
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/** If selection range took off, then we hide inline toolbar */
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if (selectedText.length === 0) {
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editor.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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editor.caret.saveCurrentInputIndex();
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}
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if (editor.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 = editor.state.inputs.length > 0 ? editor.state.inputs.length - 1 : 0;
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/** If we have any inputs */
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if (editor.state.inputs.length) {
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/** getting firstlevel parent of input */
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firstLevelBlock = editor.content.getFirstLevelBlock(editor.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 (editor.state.inputs.length && editor.state.inputs[indexOfLastInput].textContent === '' && firstLevelBlock.dataset.tool == editor.settings.initialBlockPlugin) {
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editor.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 = editor.settings.initialBlockPlugin;
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editor.content.insertBlock({
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type : NEW_BLOCK_TYPE,
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block : editor.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 (editor.state.inputs.length === 1) {
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editor.caret.setToBlock(indexOfLastInput);
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} else {
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/** Set caret to this appended input */
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editor.caret.setToNextBlock(indexOfLastInput);
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}
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}
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} else {
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/** Close all panels */
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editor.toolbar.settings.close();
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editor.toolbar.toolbox.close();
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}
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/**
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* Move toolbar and open
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*/
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editor.toolbar.move();
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editor.toolbar.open();
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var inputIsEmpty = !editor.content.currentNode.textContent.trim(),
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currentNodeType = editor.content.currentNode.dataset.tool,
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isInitialType = currentNodeType == editor.settings.initialBlockPlugin;
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/** Hide plus buttons */
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editor.toolbar.hidePlusButton();
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if (!inputIsEmpty) {
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/** Mark current block */
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editor.content.markBlock();
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}
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if ( isInitialType && inputIsEmpty ) {
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/** Show plus button */
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editor.toolbar.showPlusButton();
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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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*
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* @private
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*
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* @description 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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var 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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editor.content.editorAreaHightlighted = true;
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} else {
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if (!editor.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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editor.content.editorAreaHightlighted = !flag;
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}
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};
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/**
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* Toolbar button click handler
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*
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* @param {Object} event - cursor to the button
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* @protected
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*
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* @description gets current tool and calls render method
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*/
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callbacks.toolbarButtonClicked = function (event) {
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var button = this;
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editor.toolbar.current = button.dataset.type;
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editor.toolbar.toolbox.toolClicked(event);
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editor.toolbar.close();
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};
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/**
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* Show or Hide toolbox when plus button is clicked
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*/
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callbacks.plusButtonClicked = function () {
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if (!editor.nodes.toolbox.classList.contains('opened')) {
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editor.toolbar.toolbox.open();
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} else {
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editor.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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* @protected
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* @param {Object} event
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*
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* Handles keydowns on block
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* @see blockRightOrDownArrowPressed_
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* @see backspacePressed_
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* @see blockLeftOrUpArrowPressed_
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*/
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callbacks.blockKeydown = function (event) {
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let block = event.target; // event.target is input
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switch (event.keyCode) {
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case editor.core.keys.DOWN:
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case editor.core.keys.RIGHT:
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blockRightOrDownArrowPressed_(event);
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break;
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case editor.core.keys.BACKSPACE:
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backspacePressed_(block, event);
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break;
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case editor.core.keys.UP:
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case editor.core.keys.LEFT:
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blockLeftOrUpArrowPressed_(event);
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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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* @param {Object} event
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* @private
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*
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* @description watches the selection and gets closest editable element.
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* Uses method getDeepestTextNodeFromPosition to get the last node of next block
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* Sets caret if it is contenteditable
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*/
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var blockRightOrDownArrowPressed_ = function (event) {
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var selection = window.getSelection(),
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inputs = editor.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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editor.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 ];
|
|
|
|
if (editor.core.isDomNode(lastChild)) {
|
|
|
|
deepestTextnode = editor.content.getDeepestTextNodeFromPosition(lastChild, lastChild.childNodes.length);
|
|
|
|
} else {
|
|
|
|
deepestTextnode = lastChild;
|
|
|
|
}
|
|
|
|
caretInLastChild = selection.anchorNode == deepestTextnode;
|
|
caretAtTheEndOfText = deepestTextnode.length == selection.anchorOffset;
|
|
|
|
if ( !caretInLastChild || !caretAtTheEndOfText ) {
|
|
|
|
editor.core.log('arrow [down|right] : caret does not reached the end');
|
|
return false;
|
|
|
|
}
|
|
|
|
editor.caret.setToNextBlock(editableElementIndex);
|
|
|
|
};
|
|
|
|
/**
|
|
* LEFT or UP keydowns on block
|
|
*
|
|
* @param {Object} event
|
|
* @private
|
|
*
|
|
* watches the selection and gets closest editable element.
|
|
* Uses method getDeepestTextNodeFromPosition to get the last node of previous block
|
|
* Sets caret if it is contenteditable
|
|
*
|
|
*/
|
|
var blockLeftOrUpArrowPressed_ = function (event) {
|
|
|
|
var selection = window.getSelection(),
|
|
inputs = editor.state.inputs,
|
|
focusedNode = selection.anchorNode,
|
|
focusedNodeHolder;
|
|
|
|
/** Check for caret existance */
|
|
if (!focusedNode) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
/**
|
|
* LEFT or UP not at the beginning
|
|
*/
|
|
if ( selection.anchorOffset !== 0) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
/** Looking for parent contentEditable block */
|
|
while (focusedNode.contentEditable != 'true') {
|
|
|
|
focusedNodeHolder = focusedNode.parentNode;
|
|
focusedNode = focusedNodeHolder;
|
|
|
|
}
|
|
|
|
/** Input index in DOM level */
|
|
var editableElementIndex = 0;
|
|
|
|
while (focusedNode != inputs[editableElementIndex]) {
|
|
|
|
editableElementIndex ++;
|
|
|
|
}
|
|
|
|
/**
|
|
* Do nothing if caret is not at the beginning of first child
|
|
*/
|
|
var caretInFirstChild = false,
|
|
caretAtTheBeginning = false;
|
|
|
|
var firstChild,
|
|
deepestTextnode;
|
|
|
|
/**
|
|
* Founded contentEditable element doesn't have childs
|
|
* Or maybe New created block
|
|
*/
|
|
if (!focusedNode.textContent) {
|
|
|
|
editor.caret.setToPreviousBlock(editableElementIndex);
|
|
return;
|
|
|
|
}
|
|
|
|
firstChild = focusedNode.childNodes[0];
|
|
|
|
if (editor.core.isDomNode(firstChild)) {
|
|
|
|
deepestTextnode = editor.content.getDeepestTextNodeFromPosition(firstChild, 0);
|
|
|
|
} else {
|
|
|
|
deepestTextnode = firstChild;
|
|
|
|
}
|
|
|
|
caretInFirstChild = selection.anchorNode == deepestTextnode;
|
|
caretAtTheBeginning = selection.anchorOffset === 0;
|
|
|
|
if ( caretInFirstChild && caretAtTheBeginning ) {
|
|
|
|
editor.caret.setToPreviousBlock(editableElementIndex);
|
|
|
|
}
|
|
|
|
};
|
|
|
|
/**
|
|
* Handles backspace keydown
|
|
*
|
|
* @param {Element} block
|
|
* @param {Object} event
|
|
* @private
|
|
*
|
|
* @description if block is empty, delete the block and set caret to the previous block
|
|
* If block is not empty, try to merge two blocks - current and previous
|
|
* But it we try'n to remove first block, then we should set caret to the next block, not previous.
|
|
* If we removed the last block, create new one
|
|
*/
|
|
var backspacePressed_ = function (block, event) {
|
|
|
|
var currentInputIndex = editor.caret.getCurrentInputIndex(),
|
|
range,
|
|
selectionLength,
|
|
firstLevelBlocksCount;
|
|
|
|
if (editor.core.isNativeInput(event.target)) {
|
|
|
|
/** If input value is empty - remove block */
|
|
if (event.target.value.trim() == '') {
|
|
|
|
block.remove();
|
|
|
|
} else {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (block.textContent.trim()) {
|
|
|
|
range = editor.content.getRange();
|
|
selectionLength = range.endOffset - range.startOffset;
|
|
|
|
if (editor.caret.position.atStart() && !selectionLength && editor.state.inputs[currentInputIndex - 1]) {
|
|
|
|
editor.content.mergeBlocks(currentInputIndex);
|
|
|
|
} else {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (!selectionLength) {
|
|
|
|
block.remove();
|
|
|
|
}
|
|
|
|
|
|
firstLevelBlocksCount = editor.nodes.redactor.childNodes.length;
|
|
|
|
/**
|
|
* If all blocks are removed
|
|
*/
|
|
if (firstLevelBlocksCount === 0) {
|
|
|
|
/** update currentNode variable */
|
|
editor.content.currentNode = null;
|
|
|
|
/** Inserting new empty initial block */
|
|
editor.ui.addInitialBlock();
|
|
|
|
/** Updating inputs state after deleting last block */
|
|
editor.ui.saveInputs();
|
|
|
|
/** Set to current appended block */
|
|
window.setTimeout(function () {
|
|
|
|
editor.caret.setToPreviousBlock(1);
|
|
|
|
}, 10);
|
|
|
|
} else {
|
|
|
|
if (editor.caret.inputIndex !== 0) {
|
|
|
|
/** Target block is not first */
|
|
editor.caret.setToPreviousBlock(editor.caret.inputIndex);
|
|
|
|
} else {
|
|
|
|
/** If we try to delete first block */
|
|
editor.caret.setToNextBlock(editor.caret.inputIndex);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
editor.toolbar.move();
|
|
|
|
if (!editor.toolbar.opened) {
|
|
|
|
editor.toolbar.open();
|
|
|
|
}
|
|
|
|
/** Updating inputs state */
|
|
editor.ui.saveInputs();
|
|
|
|
/** Prevent default browser behaviour */
|
|
event.preventDefault();
|
|
|
|
};
|
|
|
|
/**
|
|
* used by UI module
|
|
* Clicks on block settings button
|
|
*
|
|
* @param {Object} event
|
|
* @protected
|
|
* @description Opens toolbar settings
|
|
*/
|
|
callbacks.showSettingsButtonClicked = function (event) {
|
|
|
|
/**
|
|
* 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 = editor.content.currentNode.dataset.tool;
|
|
|
|
editor.toolbar.settings.toggle(currentToolType);
|
|
|
|
/** Close toolbox when settings button is active */
|
|
editor.toolbar.toolbox.close();
|
|
editor.toolbar.settings.hideRemoveActions();
|
|
|
|
};
|
|
|
|
return callbacks;
|
|
|
|
})({}); |