mirror of
https://github.com/flynx/pWiki.git
synced 2025-10-29 01:50:07 +00:00
755 lines
21 KiB
JavaScript
Executable File
755 lines
21 KiB
JavaScript
Executable File
/**********************************************************************
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*
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*
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*
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**********************************************************************/
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//---------------------------------------------------------------------
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// XXX do a caret api...
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// XXX only for text areas...
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var atLine = function(elem, index){
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// XXX add support for range...
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var text = elem.value
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var lines = text.split(/\n/g).length
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var line = elem.caretLine
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// XXX STUB index handling...
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if((index == -1 && line == lines)
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|| (index == 0 && line == 1)){
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return true }
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return false }
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//---------------------------------------------------------------------
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// XXX experiment with a concatinative model...
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// .get(..) -> Outline (view)
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var Outline = {
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dom: undefined,
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// config...
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//
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left_key_collapses: true,
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right_key_expands: true,
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code_update_interval: 5000,
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tab_size: 4,
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get code(){
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return this.dom.querySelector('.code') },
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get outline(){
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return this.dom.querySelector('.outline') },
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get toolbar(){
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return this.dom.querySelector('.toolbar') },
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//
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// .get([<offset>])
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// .get('focused'[, <offset>])
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// -> <node>
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//
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// .get('edited'[, <offset>])
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// -> <node>
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//
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// .get('siblings')
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// .get('focused', 'siblings')
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// -> <nodes>
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//
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// .get('children')
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// .get('focused', 'children')
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// -> <nodes>
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//
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// .get('next')
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// .get('focused', 'next')
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// -> <node>
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//
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// .get('prev')
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// .get('focused', 'prev')
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// -> <node>
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//
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// .get('all')
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// .get('visible')
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// .get('editable')
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// .get('selected')
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// .get('top')
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// -> <nodes>
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//
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// XXX add support for node ID...
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// XXX need to be able to get the next elem on same level...
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get: function(node='focused', offset){
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var that = this
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// shorthands...
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if(node == 'next'){
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return this.get('focused', 1) }
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if(node == 'prev' || node == 'previous'){
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return this.get('focused', -1) }
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var outline = this.outline
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// node lists...
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var NO_NODES = {}
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var nodes =
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node == 'all' ?
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[...outline.querySelectorAll('[tabindex]')]
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: node == 'visible' ?
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[...outline.querySelectorAll('[tabindex]')]
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.filter(function(e){
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return e.offsetParent != null })
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: node == 'editable' ?
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[...outline.querySelectorAll('[tabindex]>textarea')]
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: node == 'selected' ?
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[...outline.querySelectorAll('[tabindex][selected]')]
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: node == 'top' ?
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[...outline.children]
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.filter(function(elem){
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return elem.getAttribute('tabindex') != null })
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: ['siblings', 'children'].includes(node) ?
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this.get('focused', node)
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: node instanceof Array ?
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node
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: NO_NODES
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if(nodes !== NO_NODES){
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return offset == null ?
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nodes
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: typeof(offset) == 'number' ?
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nodes.at(offset)
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: nodes
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.map(function(elem){
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return that.get(elem, offset) }) }
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// single base node...
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node =
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typeof(node) == 'number' ?
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this.at(node)
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: node == 'focused' ?
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(outline.querySelector(`[tabindex]:focus`)
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|| outline.querySelector(`textarea:focus`)?.parentElement
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|| outline.querySelector('[tabindex].focused'))
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: node == 'parent' ?
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this.get('focused')?.parentElement
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: node
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var edited
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if(node == 'edited'){
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edited = outline.querySelector(`textarea:focus`)
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node = edited?.parentElement }
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if(!node || typeof(node) == 'string'){
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return undefined }
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// children...
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if(offset == 'children'){
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return [...node.children]
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.filter(function(elem){
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return elem.getAttribute('tabindex') != null }) }
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// siblings...
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if(offset == 'siblings'){
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return [...node.parentElement.children]
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.filter(function(elem){
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return elem.getAttribute('tabindex') != null }) }
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// offset...
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offset =
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offset == 'next' ?
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1
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: offset == 'prev' ?
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-1
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: offset
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if(typeof(offset) == 'number'){
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nodes = this.get('visible')
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var i = nodes.indexOf(node) + offset
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i = i < 0 ?
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nodes.length + i
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: i % nodes.length
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node = nodes[i]
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edited = edited
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&& node.querySelector('textarea') }
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return edited
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|| node },
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at: function(index, nodes='visible'){
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return this.get(nodes).at(index) },
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focus: function(node='focused', offset){},
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edit: function(node='focused', offset){},
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update: function(node='focused', data){
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var node = this.get(node)
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data ??= this.data(node, false)
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typeof(data.collapsed) == 'boolean'
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&& (data.collapsed ?
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node.setAttribute('collapsed', '')
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: node.removeAttribute('collapsed'))
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if(data.text){
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var text = node.querySelector('textarea')
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var html = node.querySelector('span')
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if(this.__code2html__){
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// NOTE: we are ignoring the .collapsed attr here
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var parsed = this.__code2html__(data.text)
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html.innerHTML = parsed.text
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// heading...
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node.classList.remove(...this.__styles)
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parsed.style
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&& node.classList.add(...parsed.style)
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} else {
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html.innerHTML = data.text }
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text.value = data.text
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// XXX this does not see to work until we click in the textarea...
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text.autoUpdateSize() }
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return node },
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indent: function(node='focused', indent=true){
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// .indent(<indent>)
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if(node === true || node === false){
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indent = node
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node = 'focused' }
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var cur = this.get(node)
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if(!cur){
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return }
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var siblings = this.get(node, 'siblings')
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// deindent...
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if(!indent){
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var parent = cur.parentElement
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if(!parent.classList.contains('.outline')){
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var children = siblings.slice(siblings.indexOf(cur)+1)
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parent.after(cur)
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children.length > 0
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&& cur.append(...children) }
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// indent...
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} else {
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var parent = siblings[siblings.indexOf(cur) - 1]
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if(parent){
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parent.append(cur) } }
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return cur },
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deindent: function(node='focused', indent=false){
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return this.indent(node, indent) },
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toggleCollapse: function(node='focused', state='next'){
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var that = this
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if(node == 'all'){
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return this.get('all')
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.map(function(node){
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return that.toggleCollapse(node, state) }) }
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// .toggleCollapse(<state>)
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if(['next', true, false].includes(node)){
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state = node
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node = 'focused' }
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node = this.get(node)
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if(!node
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// only nodes with children can be collapsed...
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|| !node.querySelector('[tabindex]')){
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return }
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state = state == 'next' ?
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node.getAttribute('collapsed') != ''
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: state
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if(state){
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node.setAttribute('collapsed', '')
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} else {
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node.removeAttribute('collapsed')
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for(var elem of [...node.querySelectorAll('textarea')]){
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elem.updateSize() } }
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return node },
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remove: function(node='focused', offset){
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var elem = this.get(...arguments)
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var next
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if(elem.classList.contains('focused')){
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// XXX need to be able to get the next elem on same level...
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this.toggleCollapse(elem, true)
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next = elem === this.get(-1) ?
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this.get(elem, 'prev')
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: this.get(elem, 'next') }
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elem?.remove()
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next?.focus()
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return this },
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clear: function(){
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this.outline.innerText = ''
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return this },
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// block serialization...
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// XXX split this up into a generic handler + plugins...
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// XXX need a way to filter input text...
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// use-case: hidden attributes...
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// NOTE: this is auto-populated by .__code2html__(..)
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__styles: undefined,
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__code2html__: function(code){
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var that = this
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var elem = {
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collapsed: false,
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}
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// only whitespace -> keep element blank...
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if(code.trim() == ''){
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elem.text = ''
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return elem }
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var style = function(style, code=undefined){
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style = [style].flat()
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that.__styles = [...new Set([
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...(that.__styles ?? []),
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...style,
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])]
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return function(_, text){
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elem.style ??= []
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elem.style.push(...style)
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return code
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?? text } }
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elem.text = code
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// hidden attributes...
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// XXX make this generic...
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// XXX should these be hidden from code too???
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// collapsed...
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.replace(/(\n|^)\s*collapsed::\s*(.*)\s*(\n|$)/,
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function(_, value){
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elem.collapsed = value.trim() == 'true'
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return '' })
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// id...
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.replace(/(\n|^)\s*id::\s*(.*)\s*(\n|$)/,
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function(_, value){
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elem.id = value.trim()
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return '' })
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// markdown...
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// style: headings...
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.replace(/^(?<!\\)######\s+(.*)$/m, style('heading-6'))
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.replace(/^(?<!\\)#####\s+(.*)$/m, style('heading-5'))
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.replace(/^(?<!\\)####\s+(.*)$/m, style('heading-4'))
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.replace(/^(?<!\\)###\s+(.*)$/m, style('heading-3'))
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.replace(/^(?<!\\)##\s+(.*)$/m, style('heading-2'))
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.replace(/^(?<!\\)#\s+(.*)$/m, style('heading-1'))
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// style: list...
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.replace(/^(?<!\\)[-\*]\s+(.*)$/m, style('list-item'))
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.replace(/^\s*(.*)(?<!\\):\s*$/m, style('list'))
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// style: misc...
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.replace(/^(?<!\\)((\/\/|;)\s+.*)$/m, style('comment'))
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.replace(/^(?<!\\)XXX\s+(.*)$/m, style('XXX'))
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.replace(/^(.*)\s*(?<!\\)XXX$/m, style('XXX'))
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.replace(/(\s*)(?<!\\)ASAP(\s*)/m, '$1<span class="ASAP">ASAP</span>$2')
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// elements...
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.replace(/(\n|^)(?<!\\)---*\h*(\n|$)/m, '$1<hr>')
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// ToDo...
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.replace(/^(?<!\\)TODO\s+/m,
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style('todo', '<input type="checkbox">'))
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.replace(/^(?<!\\)DONE\s+/m,
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style('todo', '<input type="checkbox" checked>'))
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// checkboxes...
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.replace(/(?<!\\)\[_\]/gm,
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style('check', '<input class="check" type="checkbox">'))
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.replace(/(?<!\\)\[[X]\]/gm,
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style('check', '<input class="check" type="checkbox" checked>'))
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// basic styling...
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.replace(/(?<!\\)\*(?=[^\s*])(([^*]|\\\*)*[^\s*])(?<!\\)\*/gm, '<b>$1</b>')
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.replace(/(?<!\\)~(?=[^\s~])(([^~]|\\~)*[^\s~])(?<!\\)~/gm, '<s>$1</s>')
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.replace(/(?<!\\)_(?=[^\s_])(([^_]|\\_)*[^\s_])(?<!\\)_/gm, '<i>$1</i>')
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.replace(/(?<!\\)`(?=[^\s_])(([^`]|\\`)*[^\s_])(?<!\\)`/gm, '<code>$1</code>')
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// quoting...
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.replace(/(?<!\\)\\(.)/gm, '$1')
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return elem },
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// serialization...
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data: function(elem, deep=true){
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elem = this.get(elem)
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return {
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text: elem.querySelector('textarea').value,
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collapsed: elem.getAttribute('collapsed') != null,
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...(deep ?
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{children: this.json(elem)}
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: {}),
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} },
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json: function(node){
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var that = this
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node ??= this.outline
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return [...node.children]
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.map(function(elem){
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return elem.nodeName != 'DIV' ?
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[]
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: [that.data(elem)] })
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.flat() },
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// XXX add option to customize indent size...
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text: function(node, indent, level){
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// .text(<indent>, <level>)
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if(typeof(node) == 'string'){
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;[node, indent=' ', level=''] = [undefined, ...arguments] }
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node ??= this.json(node)
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indent ??= ' '
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level ??= ''
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var text = []
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for(var elem of node){
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text.push(
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level +'- '
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+ elem.text
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.replace(/\n/g, '\n'+ level +' ')
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+ (elem.collapsed ?
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'\n'+level+' ' + 'collapsed:: true'
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: ''),
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(elem.children
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&& elem.children.length > 0) ?
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this.text(elem.children || [], indent, level+indent)
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: [] ) }
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return text
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.flat()
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.join('\n') },
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parse: function(text){
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text = text
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.replace(/^\s*\n/, '')
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text = ('\n' + text)
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.split(/\n(\s*)- /g)
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.slice(1)
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var tab = ' '.repeat(this.tab_size || 8)
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var level = function(lst, prev_sep=undefined, parent=[]){
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while(lst.length > 0){
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sep = lst[0].replace(/\t/g, tab)
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// deindent...
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if(prev_sep != null
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&& sep.length < prev_sep.length){
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break }
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prev_sep ??= sep
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// same level...
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if(sep.length == prev_sep.length){
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var [_, block] = lst.splice(0, 2)
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var collapsed = false
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block = block
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.replace(/\n\s*collapsed::\s*(.*)\s*$/,
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function(_, value){
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collapsed = value == 'true'
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return '' })
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parent.push({
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text: block
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// normalize indent...
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.split(new RegExp('\n'+sep+' ', 'g'))
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.join('\n'),
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collapsed,
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children: [],
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})
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// indent...
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} else {
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parent.at(-1).children = level(lst, sep) } }
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return parent }
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return level(text) },
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// XXX should this handle children???
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// XXX revise name...
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Block: function(data={}, place=null){
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if(typeof(data) != 'object'){
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place = data
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data = {} }
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var block = document.createElement('div')
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block.setAttribute('tabindex', '0')
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var text = document.createElement('textarea')
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.autoUpdateSize()
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var html = document.createElement('span')
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block.append(text, html)
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this.update(block, data)
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// place...
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var cur = this.get()
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if(place && cur){
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place = place == 'prev' ?
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'before'
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: place
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;(place == 'next'
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&& (cur.querySelector('[tabindex]')
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|| cur.nextElementSibling)) ?
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this.get(place).before(block)
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: (place == 'next'
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&& !cur.nextElementSibling) ?
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cur.after(block)
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: (place == 'before' || place == 'after') ?
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cur[place](block)
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: undefined }
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return block },
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load: function(data){
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var that = this
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data = typeof(data) == 'string' ?
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this.parse(data)
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: data
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// generate dom...
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var level = function(lst){
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return lst
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.map(function(data){
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var elem = that.Block(data)
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if((data.children || []).length > 0){
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elem.append(...level(data.children)) }
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return elem }) }
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this
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.clear()
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.outline
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.append(...level(data))
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// update sizes of all the textareas (transparent)...
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for(var e of [...this.outline.querySelectorAll('textarea')]){
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e.updateSize() }
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return this },
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sync: function(){
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var code = this.code
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code
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&& (code.innerHTML = this.text())
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return this },
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// XXX add scrollIntoView(..) to nav...
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keyboard: {
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// vertical navigation...
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// XXX wrapped line navigation is broken...
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ArrowUp: function(evt){
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var state = 'focused'
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var edited = this.get('edited')
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if(edited){
|
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if(!atLine(edited, 0)){
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return }
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/*/
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//*/
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state = 'edited' }
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evt.preventDefault()
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this.get(state, -1)?.focus() },
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ArrowDown: function(evt, offset=1){
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var state = 'focused'
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var edited = this.get('edited')
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if(edited){
|
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if(!atLine(edited, -1)){
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return }
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state = 'edited' }
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evt.preventDefault()
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this.get(state, 1)?.focus() },
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// horizontal navigation / collapse...
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ArrowLeft: function(evt){
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var edited = this.get('edited')
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if(edited){
|
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// move caret to prev element...
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if(edited.selectionStart == edited.selectionEnd
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&& edited.selectionStart == 0){
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evt.preventDefault()
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edited = this.get('edited', 'prev')
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edited.focus()
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edited.selectionStart =
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edited.selectionEnd = edited.value.length + 1 }
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return }
|
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;((this.left_key_collapses
|
|
|| evt.shiftKey)
|
|
&& this.get().getAttribute('collapsed') == null
|
|
&& this.get('children').length > 0) ?
|
|
this.toggleCollapse(true)
|
|
: this.get('parent')?.focus() },
|
|
ArrowRight: function(evt){
|
|
var edited = this.get('edited')
|
|
if(edited){
|
|
// move caret to next element...
|
|
if(edited.selectionStart == edited.selectionEnd
|
|
&& edited.selectionStart == edited.value.length){
|
|
evt.preventDefault()
|
|
edited = this.get('edited', 'next')
|
|
edited.focus()
|
|
edited.selectionStart =
|
|
edited.selectionEnd = 0 }
|
|
return }
|
|
if(this.right_key_expands){
|
|
this.toggleCollapse(false)
|
|
var child = this.get('children')[0]
|
|
child?.focus()
|
|
if(!child){
|
|
this.get('next')?.focus() }
|
|
} else {
|
|
evt.shiftKey ?
|
|
this.toggleCollapse(false)
|
|
: this.get('children')[0]?.focus() } },
|
|
|
|
// indent...
|
|
Tab: function(evt){
|
|
evt.preventDefault()
|
|
var edited = this.get('edited')
|
|
var node = this.indent(!evt.shiftKey)
|
|
;(edited ?
|
|
edited
|
|
: node)?.focus() },
|
|
|
|
// edit mode...
|
|
O: function(evt){
|
|
if(evt.target.nodeName != 'TEXTAREA'){
|
|
evt.preventDefault()
|
|
this.Block('before')
|
|
?.querySelector('textarea')
|
|
?.focus() } },
|
|
o: function(evt){
|
|
if(evt.target.nodeName != 'TEXTAREA'){
|
|
evt.preventDefault()
|
|
this.Block('next')
|
|
?.querySelector('textarea')
|
|
?.focus() } },
|
|
Enter: function(evt){
|
|
if(evt.ctrlKey
|
|
|| evt.shiftKey){
|
|
return }
|
|
evt.preventDefault()
|
|
evt.target.nodeName == 'TEXTAREA' ?
|
|
this.Block('next')
|
|
?.querySelector('textarea')
|
|
?.focus()
|
|
: this.get()
|
|
?.querySelector('textarea')
|
|
?.focus() },
|
|
Escape: function(evt){
|
|
this.outline.querySelector('textarea:focus')
|
|
?.parentElement
|
|
?.focus() },
|
|
Delete: function(evt){
|
|
if(this.get('edited')){
|
|
return }
|
|
this.remove() },
|
|
|
|
// select...
|
|
// XXX add:
|
|
// ctrl-A
|
|
// ctrl-D
|
|
' ': function(evt){
|
|
if(this.get('edited') != null){
|
|
return }
|
|
evt.preventDefault()
|
|
var focused = this.get()
|
|
focused.getAttribute('selected') != null ?
|
|
focused.removeAttribute('selected')
|
|
: focused.setAttribute('selected', '') },
|
|
},
|
|
|
|
// XXX might be a good idea to defer specific actions to event-like
|
|
// handlers...
|
|
// e.g. clicking left if block -> .blockleft(..) ... etc.
|
|
setup: function(dom){
|
|
var that = this
|
|
this.dom = dom
|
|
|
|
// outline...
|
|
var outline = this.outline
|
|
// update stuff already in DOM...
|
|
for(var elem of [...outline.querySelectorAll('textarea')]){
|
|
elem.autoUpdateSize() }
|
|
// click...
|
|
outline.addEventListener('click',
|
|
function(evt){
|
|
var elem = evt.target
|
|
|
|
// expand/collapse
|
|
if(elem.nodeName == 'SPAN'
|
|
&& elem.parentElement.getAttribute('tabindex')){
|
|
// click: left of elem (outside)
|
|
if(evt.offsetX < 0){
|
|
// XXX item menu?
|
|
|
|
// click: right of elem (outside)
|
|
} else if(elem.offsetWidth < evt.offsetX){
|
|
that.toggleCollapse(elem.parentElement)
|
|
|
|
// click inside element...
|
|
} else {
|
|
// XXX
|
|
}
|
|
|
|
// todo: toggle checkbox...
|
|
} else if(elem.type == 'checkbox'
|
|
&& elem.parentElement.parentElement.classList.contains('todo')){
|
|
var node = elem.parentElement.parentElement
|
|
var text = node.querySelector('textarea')
|
|
text.value =
|
|
elem.checked ?
|
|
text.value.replace(/^\s*TODO(\s*)/, 'DONE$1')
|
|
: text.value.replace(/^\s*DONE(\s*)/, 'TODO$1')
|
|
|
|
// check: toggle checkbox...
|
|
} else if(elem.type == 'checkbox'
|
|
&& elem.classList.contains('check')){
|
|
var node = elem.parentElement.parentElement
|
|
var text = node.querySelector('textarea')
|
|
var i = [...node.querySelectorAll('.check')].indexOf(elem)
|
|
var to = elem.checked ?
|
|
'[X]'
|
|
: '[_]'
|
|
var toggle = function(m){
|
|
return i-- == 0 ?
|
|
to
|
|
: m }
|
|
text.value = text.value.replace(/\[[X_]\]/g, toggle) } })
|
|
// heboard handling...
|
|
outline.addEventListener('keydown',
|
|
function(evt){
|
|
var elem = evt.target
|
|
// update element state...
|
|
if(elem.nodeName == 'TEXTAREA'){
|
|
setTimeout(function(){
|
|
that.update(elem.parentElement)
|
|
elem.updateSize() }, 0) }
|
|
// handle keyboard...
|
|
evt.key in that.keyboard
|
|
&& that.keyboard[evt.key].call(that, evt) })
|
|
// toggle view/code of nodes...
|
|
outline.addEventListener('focusin',
|
|
function(evt){
|
|
var node = evt.target
|
|
// scroll...
|
|
// XXX a bit odd still and not smooth...
|
|
;((node.nodeName == 'SPAN'
|
|
|| node.nodeName == 'TEXTAREA') ?
|
|
node
|
|
: node.querySelector('textarea+span'))
|
|
?.scrollIntoView({
|
|
block: 'nearest',
|
|
behavior: 'smooth',
|
|
})
|
|
// handle focus...
|
|
for(var e of [...that.dom.querySelectorAll('.focused')]){
|
|
e.classList.remove('focused') }
|
|
that.get('focused')?.classList?.add('focused')
|
|
// textarea...
|
|
if(node.nodeName == 'TEXTAREA'
|
|
&& node?.nextElementSibling?.nodeName == 'SPAN'){
|
|
node.updateSize() } })
|
|
outline.addEventListener('focusout',
|
|
function(evt){
|
|
var node = evt.target
|
|
if(node.nodeName == 'TEXTAREA'
|
|
&& node?.nextElementSibling?.nodeName == 'SPAN'){
|
|
var block = node.parentElement
|
|
that.update(block, { text: node.value }) } })
|
|
// update .code...
|
|
var update_code_timeout
|
|
outline.addEventListener('change',
|
|
function(evt){
|
|
if(update_code_timeout){
|
|
return }
|
|
update_code_timeout = setTimeout(
|
|
function(){
|
|
update_code_timeout = undefined
|
|
that.sync() },
|
|
that.code_update_interval || 5000) })
|
|
|
|
// toolbar...
|
|
var toolbar = this.toolbar
|
|
if(toolbar){
|
|
// handle return of focus when clicking toolbar...
|
|
var focus_textarea
|
|
var cahceNodeType = function(){
|
|
// NOTE: for some reason .activeElement returns an element
|
|
// that is not in the DOM after the action is done...
|
|
focus_textarea = document.activeElement.nodeName == 'TEXTAREA' }
|
|
var refocusNode = function(){
|
|
focus_textarea ?
|
|
editor.get().querySelector('textarea').focus()
|
|
: editor.get().focus()
|
|
focus_textarea = undefined }
|
|
// cache the focused node type before focus changes...
|
|
toolbar.addEventListener('mousedown', cahceNodeType)
|
|
// refocus the node after we are done...
|
|
toolbar.addEventListener('click', refocusNode) }
|
|
|
|
// code...
|
|
var code = this.code
|
|
if(code){
|
|
this.load(code.innerHTML) }
|
|
|
|
return this },
|
|
}
|
|
|
|
|
|
|
|
/**********************************************************************
|
|
* vim:set ts=4 sw=4 : */
|