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| import $ from 'jquery';
import env from '../core/env';
import key from '../core/key';
import func from '../core/func';
import lists from '../core/lists';
import dom from '../core/dom';
import range from '../core/range';
import { readFileAsDataURL, createImage } from '../core/async';
import History from '../editing/History';
import Style from '../editing/Style';
import Typing from '../editing/Typing';
import Table from '../editing/Table';
import Bullet from '../editing/Bullet';
const KEY_BOGUS = 'bogus';
/**
* @class Editor
*/
export default class Editor {
constructor(context) {
this.context = context;
this.$note = context.layoutInfo.note;
this.$editor = context.layoutInfo.editor;
this.$editable = context.layoutInfo.editable;
this.options = context.options;
this.lang = this.options.langInfo;
this.editable = this.$editable[0];
this.lastRange = null;
this.style = new Style();
this.table = new Table();
this.typing = new Typing();
this.bullet = new Bullet();
this.history = new History(this.$editable);
this.context.memo('help.undo', this.lang.help.undo);
this.context.memo('help.redo', this.lang.help.redo);
this.context.memo('help.tab', this.lang.help.tab);
this.context.memo('help.untab', this.lang.help.untab);
this.context.memo('help.insertParagraph', this.lang.help.insertParagraph);
this.context.memo('help.insertOrderedList', this.lang.help.insertOrderedList);
this.context.memo('help.insertUnorderedList', this.lang.help.insertUnorderedList);
this.context.memo('help.indent', this.lang.help.indent);
this.context.memo('help.outdent', this.lang.help.outdent);
this.context.memo('help.formatPara', this.lang.help.formatPara);
this.context.memo('help.insertHorizontalRule', this.lang.help.insertHorizontalRule);
this.context.memo('help.fontName', this.lang.help.fontName);
// native commands(with execCommand), generate function for execCommand
const commands = [
'bold', 'italic', 'underline', 'strikethrough', 'superscript', 'subscript',
'justifyLeft', 'justifyCenter', 'justifyRight', 'justifyFull',
'formatBlock', 'removeFormat', 'backColor'
];
for (let idx = 0, len = commands.length; idx < len; idx++) {
this[commands[idx]] = ((sCmd) => {
return (value) => {
this.beforeCommand();
document.execCommand(sCmd, false, value);
this.afterCommand(true);
};
})(commands[idx]);
this.context.memo('help.' + commands[idx], this.lang.help[commands[idx]]);
}
this.fontName = this.wrapCommand((value) => {
return this.fontStyling('font-family', "\'" + value + "\'");
});
this.fontSize = this.wrapCommand((value) => {
return this.fontStyling('font-size', value + 'px');
});
for (let idx = 1; idx <= 6; idx++) {
this['formatH' + idx] = ((idx) => {
return () => {
this.formatBlock('H' + idx);
};
})(idx);
this.context.memo('help.formatH' + idx, this.lang.help['formatH' + idx]);
};
this.insertParagraph = this.wrapCommand(() => {
this.typing.insertParagraph(this.editable);
});
this.insertOrderedList = this.wrapCommand(() => {
this.bullet.insertOrderedList(this.editable);
});
this.insertUnorderedList = this.wrapCommand(() => {
this.bullet.insertUnorderedList(this.editable);
});
this.indent = this.wrapCommand(() => {
this.bullet.indent(this.editable);
});
this.outdent = this.wrapCommand(() => {
this.bullet.outdent(this.editable);
});
/**
* insertNode
* insert node
* @param {Node} node
*/
this.insertNode = this.wrapCommand((node) => {
if (this.isLimited($(node).text().length)) {
return;
}
const rng = this.createRange();
rng.insertNode(node);
range.createFromNodeAfter(node).select();
});
/**
* insert text
* @param {String} text
*/
this.insertText = this.wrapCommand((text) => {
if (this.isLimited(text.length)) {
return;
}
const rng = this.createRange();
const textNode = rng.insertNode(dom.createText(text));
range.create(textNode, dom.nodeLength(textNode)).select();
});
/**
* paste HTML
* @param {String} markup
*/
this.pasteHTML = this.wrapCommand((markup) => {
if (this.isLimited(markup.length)) {
return;
}
const contents = this.createRange().pasteHTML(markup);
range.createFromNodeAfter(lists.last(contents)).select();
});
/**
* formatBlock
*
* @param {String} tagName
*/
this.formatBlock = this.wrapCommand((tagName, $target) => {
const onApplyCustomStyle = this.options.callbacks.onApplyCustomStyle;
Iif (onApplyCustomStyle) {
onApplyCustomStyle.call(this, $target, this.context, this.onFormatBlock);
} else {
this.onFormatBlock(tagName, $target);
}
});
/**
* insert horizontal rule
*/
this.insertHorizontalRule = this.wrapCommand(() => {
const hrNode = this.createRange().insertNode(dom.create('HR'));
Eif (hrNode.nextSibling) {
range.create(hrNode.nextSibling, 0).normalize().select();
}
});
/**
* lineHeight
* @param {String} value
*/
this.lineHeight = this.wrapCommand((value) => {
this.style.stylePara(this.createRange(), {
lineHeight: value
});
});
/**
* create link (command)
*
* @param {Object} linkInfo
*/
this.createLink = this.wrapCommand((linkInfo) => {
let linkUrl = linkInfo.url;
const linkText = linkInfo.text;
const isNewWindow = linkInfo.isNewWindow;
let rng = linkInfo.range || this.createRange();
const isTextChanged = rng.toString() !== linkText;
// handle spaced urls from input
Eif (typeof linkUrl === 'string') {
linkUrl = linkUrl.trim();
}
Iif (this.options.onCreateLink) {
linkUrl = this.options.onCreateLink(linkUrl);
} else {
// if url doesn't match an URL schema, set http:// as default
linkUrl = /^[A-Za-z][A-Za-z0-9+-.]*\:[\/\/]?/.test(linkUrl)
? linkUrl : 'http://' + linkUrl;
}
let anchors = [];
Eif (isTextChanged) {
rng = rng.deleteContents();
const anchor = rng.insertNode($('<A>' + linkText + '</A>')[0]);
anchors.push(anchor);
} else {
anchors = this.style.styleNodes(rng, {
nodeName: 'A',
expandClosestSibling: true,
onlyPartialContains: true
});
}
$.each(anchors, (idx, anchor) => {
$(anchor).attr('href', linkUrl);
if (isNewWindow) {
$(anchor).attr('target', '_blank');
} else {
$(anchor).removeAttr('target');
}
});
const startRange = range.createFromNodeBefore(lists.head(anchors));
const startPoint = startRange.getStartPoint();
const endRange = range.createFromNodeAfter(lists.last(anchors));
const endPoint = endRange.getEndPoint();
range.create(
startPoint.node,
startPoint.offset,
endPoint.node,
endPoint.offset
).select();
});
/**
* setting color
*
* @param {Object} sObjColor color code
* @param {String} sObjColor.foreColor foreground color
* @param {String} sObjColor.backColor background color
*/
this.color = this.wrapCommand((colorInfo) => {
const foreColor = colorInfo.foreColor;
const backColor = colorInfo.backColor;
Iif (foreColor) { document.execCommand('foreColor', false, foreColor); }
Eif (backColor) { document.execCommand('backColor', false, backColor); }
});
/**
* Set foreground color
*
* @param {String} colorCode foreground color code
*/
this.foreColor = this.wrapCommand((colorInfo) => {
document.execCommand('styleWithCSS', false, true);
document.execCommand('foreColor', false, colorInfo);
});
/**
* insert Table
*
* @param {String} dimension of table (ex : "5x5")
*/
this.insertTable = this.wrapCommand((dim) => {
const dimension = dim.split('x');
const rng = this.createRange().deleteContents();
rng.insertNode(this.table.createTable(dimension[0], dimension[1], this.options));
});
/**
* remove media object and Figure Elements if media object is img with Figure.
*/
this.removeMedia = this.wrapCommand(() => {
let $target = $(this.restoreTarget()).parent();
if ($target.parent('figure').length) {
$target.parent('figure').remove();
} else {
$target = $(this.restoreTarget()).detach();
}
this.context.triggerEvent('media.delete', $target, this.$editable);
});
/**
* float me
*
* @param {String} value
*/
this.floatMe = this.wrapCommand((value) => {
const $target = $(this.restoreTarget());
$target.toggleClass('note-float-left', value === 'left');
$target.toggleClass('note-float-right', value === 'right');
$target.css('float', value);
});
/**
* resize overlay element
* @param {String} value
*/
this.resize = this.wrapCommand((value) => {
const $target = $(this.restoreTarget());
$target.css({
width: value * 100 + '%',
height: ''
});
});
}
initialize() {
// bind custom events
this.$editable.on('keydown', (event) => {
Iif (event.keyCode === key.code.ENTER) {
this.context.triggerEvent('enter', event);
}
this.context.triggerEvent('keydown', event);
Eif (!event.isDefaultPrevented()) {
Eif (this.options.shortcuts) {
this.handleKeyMap(event);
} else {
this.preventDefaultEditableShortCuts(event);
}
}
Iif (this.isLimited(1, event)) {
return false;
}
}).on('keyup', (event) => {
this.context.triggerEvent('keyup', event);
}).on('focus', (event) => {
this.context.triggerEvent('focus', event);
}).on('blur', (event) => {
this.context.triggerEvent('blur', event);
}).on('mousedown', (event) => {
this.context.triggerEvent('mousedown', event);
}).on('mouseup', (event) => {
this.context.triggerEvent('mouseup', event);
}).on('scroll', (event) => {
this.context.triggerEvent('scroll', event);
}).on('paste', (event) => {
this.context.triggerEvent('paste', event);
});
// init content before set event
this.$editable.html(dom.html(this.$note) || dom.emptyPara);
this.$editable.on(env.inputEventName, func.debounce(() => {
this.context.triggerEvent('change', this.$editable.html());
}, 100));
this.$editor.on('focusin', (event) => {
this.context.triggerEvent('focusin', event);
}).on('focusout', (event) => {
this.context.triggerEvent('focusout', event);
});
Eif (!this.options.airMode) {
Iif (this.options.width) {
this.$editor.outerWidth(this.options.width);
}
Iif (this.options.height) {
this.$editable.outerHeight(this.options.height);
}
Iif (this.options.maxHeight) {
this.$editable.css('max-height', this.options.maxHeight);
}
Iif (this.options.minHeight) {
this.$editable.css('min-height', this.options.minHeight);
}
}
this.history.recordUndo();
}
destroy() {
this.$editable.off();
}
handleKeyMap(event) {
const keyMap = this.options.keyMap[env.isMac ? 'mac' : 'pc'];
const keys = [];
Iif (event.metaKey) { keys.push('CMD'); }
Iif (event.ctrlKey && !event.altKey) { keys.push('CTRL'); }
Iif (event.shiftKey) { keys.push('SHIFT'); }
const keyName = key.nameFromCode[event.keyCode];
Iif (keyName) {
keys.push(keyName);
}
const eventName = keyMap[keys.join('+')];
Iif (eventName) {
if (this.context.invoke(eventName) !== false) {
event.preventDefault();
}
} else Iif (key.isEdit(event.keyCode)) {
this.afterCommand();
}
}
preventDefaultEditableShortCuts(event) {
// B(Bold, 66) / I(Italic, 73) / U(Underline, 85)
if ((event.ctrlKey || event.metaKey) &&
lists.contains([66, 73, 85], event.keyCode)) {
event.preventDefault();
}
}
isLimited(pad, event) {
pad = pad || 0;
if (typeof event !== 'undefined') {
Iif (key.isMove(event.keyCode) ||
(event.ctrlKey || event.metaKey) ||
lists.contains([key.code.BACKSPACE, key.code.DELETE], event.keyCode)) {
return false;
}
}
if (this.options.maxTextLength > 0) {
Eif ((this.$editable.text().length + pad) >= this.options.maxTextLength) {
return true;
}
}
return false;
}
/**
* create range
* @return {WrappedRange}
*/
createRange() {
this.focus();
return range.create(this.editable);
}
/**
* saveRange
*
* save current range
*
* @param {Boolean} [thenCollapse=false]
*/
saveRange(thenCollapse) {
this.lastRange = this.createRange();
if (thenCollapse) {
this.lastRange.collapse().select();
}
}
/**
* restoreRange
*
* restore lately range
*/
restoreRange() {
if (this.lastRange) {
this.lastRange.select();
this.focus();
}
}
saveTarget(node) {
this.$editable.data('target', node);
}
clearTarget() {
this.$editable.removeData('target');
}
restoreTarget() {
return this.$editable.data('target');
}
/**
* currentStyle
*
* current style
* @return {Object|Boolean} unfocus
*/
currentStyle() {
let rng = range.create();
if (rng) {
rng = rng.normalize();
}
return rng ? this.style.current(rng) : this.style.fromNode(this.$editable);
}
/**
* style from node
*
* @param {jQuery} $node
* @return {Object}
*/
styleFromNode($node) {
return this.style.fromNode($node);
}
/**
* undo
*/
undo() {
this.context.triggerEvent('before.command', this.$editable.html());
this.history.undo();
this.context.triggerEvent('change', this.$editable.html());
}
/**
* redo
*/
redo() {
this.context.triggerEvent('before.command', this.$editable.html());
this.history.redo();
this.context.triggerEvent('change', this.$editable.html());
}
/**
* before command
*/
beforeCommand() {
this.context.triggerEvent('before.command', this.$editable.html());
// keep focus on editable before command execution
this.focus();
}
/**
* after command
* @param {Boolean} isPreventTrigger
*/
afterCommand(isPreventTrigger) {
this.normalizeContent();
this.history.recordUndo();
if (!isPreventTrigger) {
this.context.triggerEvent('change', this.$editable.html());
}
}
/**
* handle tab key
*/
tab() {
const rng = this.createRange();
Iif (rng.isCollapsed() && rng.isOnCell()) {
this.table.tab(rng);
} else {
Iif (this.options.tabSize === 0) {
return false;
}
Eif (!this.isLimited(this.options.tabSize)) {
this.beforeCommand();
this.typing.insertTab(rng, this.options.tabSize);
this.afterCommand();
}
}
}
/**
* handle shift+tab key
*/
untab() {
const rng = this.createRange();
if (rng.isCollapsed() && rng.isOnCell()) {
this.table.tab(rng, true);
} else {
if (this.options.tabSize === 0) {
return false;
}
}
}
/**
* run given function between beforeCommand and afterCommand
*/
wrapCommand(fn) {
return () => {
this.beforeCommand();
fn.apply(this, arguments);
this.afterCommand();
};
}
/**
* insert image
*
* @param {String} src
* @param {String|Function} param
* @return {Promise}
*/
insertImage(src, param) {
return createImage(src, param).then(($image) => {
this.beforeCommand();
Iif (typeof param === 'function') {
param($image);
} else {
Eif (typeof param === 'string') {
$image.attr('data-filename', param);
}
$image.css('width', Math.min(this.$editable.width(), $image.width()));
}
$image.show();
range.create(this.editable).insertNode($image[0]);
range.createFromNodeAfter($image[0]).select();
this.afterCommand();
}).fail((e) => {
this.context.triggerEvent('image.upload.error', e);
});
}
/**
* insertImages
* @param {File[]} files
*/
insertImages(files) {
$.each(files, (idx, file) => {
const filename = file.name;
if (this.options.maximumImageFileSize && this.options.maximumImageFileSize < file.size) {
this.context.triggerEvent('image.upload.error', this.lang.image.maximumFileSizeError);
} else {
readFileAsDataURL(file).then((dataURL) => {
return this.insertImage(dataURL, filename);
}).fail(() => {
this.context.triggerEvent('image.upload.error');
});
}
});
}
/**
* insertImagesOrCallback
* @param {File[]} files
*/
insertImagesOrCallback(files) {
const callbacks = this.options.callbacks;
// If onImageUpload this.options setted
if (callbacks.onImageUpload) {
this.context.triggerEvent('image.upload', files);
// else insert Image as dataURL
} else {
this.insertImages(files);
}
}
/**
* return selected plain text
* @return {String} text
*/
getSelectedText() {
let rng = this.createRange();
// if range on anchor, expand range with anchor
if (rng.isOnAnchor()) {
rng = range.createFromNode(dom.ancestor(rng.sc, dom.isAnchor));
}
return rng.toString();
}
onFormatBlock(tagName, $target) {
// [workaround] for MSIE, IE need `<`
tagName = env.isMSIE ? '<' + tagName + '>' : tagName;
document.execCommand('FormatBlock', false, tagName);
// support custom class
if ($target && $target.length) {
const className = $target[0].className || '';
Eif (className) {
const currentRange = this.createRange();
const $parent = $([currentRange.sc, currentRange.ec]).closest(tagName);
$parent.addClass(className);
}
}
}
formatPara() {
this.formatBlock('P');
}
fontStyling(target, value) {
const rng = this.createRange();
Eif (rng) {
const spans = this.style.styleNodes(rng);
$(spans).css(target, value);
// [workaround] added styled bogus span for style
// - also bogus character needed for cursor position
Eif (rng.isCollapsed()) {
const firstSpan = lists.head(spans);
Eif (firstSpan && !dom.nodeLength(firstSpan)) {
firstSpan.innerHTML = dom.ZERO_WIDTH_NBSP_CHAR;
range.createFromNodeAfter(firstSpan.firstChild).select();
this.$editable.data(KEY_BOGUS, firstSpan);
}
}
}
}
/**
* unlink
*
* @type command
*/
unlink() {
let rng = this.createRange();
if (rng.isOnAnchor()) {
const anchor = dom.ancestor(rng.sc, dom.isAnchor);
rng = range.createFromNode(anchor);
rng.select();
this.beforeCommand();
document.execCommand('unlink');
this.afterCommand();
}
}
/**
* returns link info
*
* @return {Object}
* @return {WrappedRange} return.range
* @return {String} return.text
* @return {Boolean} [return.isNewWindow=true]
* @return {String} [return.url=""]
*/
getLinkInfo() {
const rng = this.createRange().expand(dom.isAnchor);
// Get the first anchor on range(for edit).
const $anchor = $(lists.head(rng.nodes(dom.isAnchor)));
const linkInfo = {
range: rng,
text: rng.toString(),
url: $anchor.length ? $anchor.attr('href') : ''
};
// Define isNewWindow when anchor exists.
if ($anchor.length) {
linkInfo.isNewWindow = $anchor.attr('target') === '_blank';
}
return linkInfo;
}
addRow(position) {
const rng = this.createRange(this.$editable);
if (rng.isCollapsed() && rng.isOnCell()) {
this.beforeCommand();
this.table.addRow(rng, position);
this.afterCommand();
}
}
addCol(position) {
const rng = this.createRange(this.$editable);
if (rng.isCollapsed() && rng.isOnCell()) {
this.beforeCommand();
this.table.addCol(rng, position);
this.afterCommand();
}
}
deleteRow() {
const rng = this.createRange(this.$editable);
if (rng.isCollapsed() && rng.isOnCell()) {
this.beforeCommand();
this.table.deleteRow(rng);
this.afterCommand();
}
}
deleteCol() {
const rng = this.createRange(this.$editable);
if (rng.isCollapsed() && rng.isOnCell()) {
this.beforeCommand();
this.table.deleteCol(rng);
this.afterCommand();
}
}
deleteTable() {
const rng = this.createRange(this.$editable);
if (rng.isCollapsed() && rng.isOnCell()) {
this.beforeCommand();
this.table.deleteTable(rng);
this.afterCommand();
}
}
/**
* @param {Position} pos
* @param {jQuery} $target - target element
* @param {Boolean} [bKeepRatio] - keep ratio
*/
resizeTo(pos, $target, bKeepRatio) {
let imageSize;
if (bKeepRatio) {
const newRatio = pos.y / pos.x;
const ratio = $target.data('ratio');
imageSize = {
width: ratio > newRatio ? pos.x : pos.y / ratio,
height: ratio > newRatio ? pos.x * ratio : pos.y
};
} else {
imageSize = {
width: pos.x,
height: pos.y
};
}
$target.css(imageSize);
}
/**
* returns whether editable area has focus or not.
*/
hasFocus() {
return this.$editable.is(':focus');
}
/**
* set focus
*/
focus() {
// [workaround] Screen will move when page is scolled in IE.
// - do focus when not focused
Eif (!this.hasFocus()) {
this.$editable.focus();
}
}
/**
* returns whether contents is empty or not.
* @return {Boolean}
*/
isEmpty() {
return dom.isEmpty(this.$editable[0]) || dom.emptyPara === this.$editable.html();
}
/**
* Removes all contents and restores the editable instance to an _emptyPara_.
*/
empty() {
this.context.invoke('code', dom.emptyPara);
}
/**
* normalize content
*/
normalizeContent() {
this.$editable[0].normalize();
}
}
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