mirror of
https://github.com/flynx/pWiki.git
synced 2025-10-29 01:50:07 +00:00
667 lines
18 KiB
JavaScript
Executable File
667 lines
18 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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var Node = {
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dom: undefined,
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document: undefined,
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get: function(){},
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get root(){},
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get parent(){},
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get children(){},
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get next(){},
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get prev(){},
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focus: function(){},
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edit: function(){},
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indent: function(){ },
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deindent: function(){ },
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toggleCollapse: function(){ },
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remove: function(){},
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json: function(){},
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text: function(){},
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load: function(){},
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}
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var NodeGroup = {
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__proto__: Node,
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}
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// XXX should this be Page or root??
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var Root = {
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__proto__: NodeGroup,
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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// XXX might be a good idea to do a view-action model...
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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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// XXX should this handle children???
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update: function(node='focused', data){
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var node = this.get(node)
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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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parsed.style ?
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node.classList.add(parsed.style)
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: node.classList.remove(...this.__styles__)
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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 = 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 STUB...
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// XXX shouild we support headings + other formatting per block???
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// XXX these should be symetrical -- now one returns text the other an object...
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__styles__: [
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'heading-1',
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'heading-2',
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'heading-3',
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'heading-4',
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'heading-5',
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'heading-6',
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'list',
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],
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__code2html__: function(code){
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var elem = {
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collapsed: false,
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}
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var heading = function(level){
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return function(_, text){
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elem.style = 'heading-'+level
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return text } }
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var style = function(style){
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return function(_, text){
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elem.style = style
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return text } }
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elem.text = code
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// attributes...
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// XXX make this generic...
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.replace(/\n\s*collapsed::\s*(.*)\s*$/,
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function(_, value){
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elem.collapsed = value.trim() == 'true'
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return '' })
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// markdown...
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.replace(/^TODO\s*(.*)$/, '<input type="checkbox"> $1')
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.replace(/^DONE\s*(.*)$/, '<input type="checkbox" checked> $1')
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.replace(/^######\s*(.*)$/, style('heading-6'))
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.replace(/^#####\s*(.*)$/, style('heading-5'))
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.replace(/^####\s*(.*)$/, style('heading-4'))
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.replace(/^###\s*(.*)$/, style('heading-3'))
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.replace(/^##\s*(.*)$/, style('heading-2'))
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.replace(/^#\s*(.*)$/, style('heading-1'))
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//.replace(/^[-\*]\s*(.*)$/, style('list'))
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.replace(/^\s*(.*):\s*$/, style('list'))
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.replace(/\*(.*)\*/g, '<b>$1</b>')
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.replace(/~([^~]*)~/g, '<s>$1</s>')
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.replace(/_([^_]*)_/g, '<i>$1</i>')
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.replace(/(\n|^)---*\h*(\n|$)/, '$1<hr>')
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.replace(/\n/g, '<br>\n')
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return elem },
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// serialization...
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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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: [{
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text: elem.querySelector('textarea').value,
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collapsed: elem.getAttribute('collapsed') != null,
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children: that.json(elem)
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}] })
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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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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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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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var cur = this.get()
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place && cur
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&& cur[place](block)
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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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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
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|| evt.shiftKey)
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&& this.get().getAttribute('collapsed') == null
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&& this.get('children').length > 0) ?
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this.toggleCollapse(true)
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: this.get('parent')?.focus() },
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ArrowRight: function(evt){
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var edited = this.get('edited')
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if(edited){
|
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// move caret to next element...
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if(edited.selectionStart == edited.selectionEnd
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&& edited.selectionStart == edited.value.length){
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evt.preventDefault()
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edited = this.get('edited', 'next')
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edited.focus()
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edited.selectionStart =
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edited.selectionEnd = 0 }
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return }
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if(this.right_key_expands){
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this.toggleCollapse(false)
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var child = this.get('children')[0]
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child?.focus()
|
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if(!child){
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this.get('next')?.focus() }
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} else {
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evt.shiftKey ?
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this.toggleCollapse(false)
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: this.get('children')[0]?.focus() } },
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|
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// indent...
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Tab: function(evt){
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evt.preventDefault()
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var edited = this.get('edited')
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var node = this.indent(!evt.shiftKey)
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;(edited ?
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edited
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: node)?.focus() },
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|
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// edit mode...
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O: function(evt){
|
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if(evt.target.nodeName != 'TEXTAREA'){
|
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evt.preventDefault()
|
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this.Block('before')?.querySelector('textarea')?.focus() } },
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o: function(evt){
|
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if(evt.target.nodeName != 'TEXTAREA'){
|
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evt.preventDefault()
|
|
this.Block('after')?.querySelector('textarea')?.focus() } },
|
|
Enter: function(evt){
|
|
/*if(evt.target.isContentEditable){
|
|
// XXX create new node...
|
|
return }
|
|
//*/
|
|
if(evt.ctrlKey
|
|
|| evt.shiftKey){
|
|
return }
|
|
evt.preventDefault()
|
|
evt.target.nodeName == 'TEXTAREA' ?
|
|
this.Block('after')?.querySelector('textarea')?.focus()
|
|
: this.get()?.querySelector('textarea')?.focus() },
|
|
Escape: function(evt){
|
|
this.outline.querySelector('textarea:focus')?.parentElement?.focus() },
|
|
Delete: function(evt){
|
|
if(evt.target.isContentEditable){
|
|
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', '') },
|
|
},
|
|
|
|
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() }
|
|
// heboard handling...
|
|
outline.addEventListener('keydown',
|
|
function(evt){
|
|
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
|
|
// 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 : */
|