mirror of
https://github.com/flynx/pWiki.git
synced 2025-10-30 02:20:08 +00:00
refactoring (not done yet...)
Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
parent
9e4f76a2e7
commit
5c69b03ad6
340
experiments/outline-editor/editor.js
Executable file
340
experiments/outline-editor/editor.js
Executable file
@ -0,0 +1,340 @@
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/**********************************************************************
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*
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*
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*
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**********************************************************************/
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//---------------------------------------------------------------------
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var Outline = {
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dom: undefined,
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focused: function(){},
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edited: function(){},
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focus: function(node=undefined){},
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edit: function(node=undefined){},
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// block serialization...
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__code2html__: function(code){
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return code },
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__html2code__: function(html){
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return html },
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keyboard: {
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// vertical navigation...
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ArrowUp: function(evt){
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var action = getFocused
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var edited = this.dom.querySelector('.editor textarea:focus')
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if(edited){
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if(!atLine(0)){
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return }
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action = getEditable }
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evt.preventDefault()
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action(-1)?.focus() },
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ArrowDown: function(evt, offset=1){
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var action = getFocused
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var edited = this.dom.querySelector('.editor textarea:focus')
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if(edited){
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if(!atLine(-1)){
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return }
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//window.getSelection()
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action = getEditable }
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evt.preventDefault()
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action(1)?.focus() },
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// horizontal navigation / collapse...
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// XXX if at start/end of element move to prev/next...
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ArrowLeft: function(evt){
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if(this.dom.querySelector('.editor textarea:focus')){
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// XXX if at end of element move to next...
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return }
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if(LEFT_COLLAPSE){
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toggleCollapse(true)
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getFocused('parent')?.focus()
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} else {
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evt.shiftKey ?
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toggleCollapse(true)
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: getFocused('parent')?.focus() } },
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ArrowRight: function(evt){
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if(this.dom.querySelector('.editor textarea:focus')){
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// XXX if at end of element move to next...
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return }
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if(RIGHT_EXPAND){
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toggleCollapse(false)
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var child = getFocused('child')
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child?.focus()
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if(!child){
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getFocused(1)?.focus() }
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} else {
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evt.shiftKey ?
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toggleCollapse(false)
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: getFocused('child')?.focus() } },
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// indent...
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Tab: function(evt){
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evt.preventDefault()
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var editable = getEditable()
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var node = indentNode(!evt.shiftKey)
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;(editable ?
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editable
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: node)?.focus() },
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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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createBlock('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()
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createBlock('after')?.querySelector('textarea')?.focus() } },
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Enter: function(evt){
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/*if(evt.target.isContentEditable){
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// XXX create new node...
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return }
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//*/
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if(evt.ctrlKey
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|| evt.shiftKey){
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return }
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evt.preventDefault()
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evt.target.nodeName == 'TEXTAREA' ?
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createBlock('after')?.querySelector('textarea')?.focus()
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: getFocused()?.querySelector('textarea')?.focus() },
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Escape: function(evt){
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this.dom.querySelector('textarea:focus')?.parentElement?.focus() },
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Delete: function(evt){
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if(evt.target.isContentEditable){
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return }
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var next = getFocused(1)
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getFocused()?.remove()
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next?.focus() },
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},
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setup: function(dom){
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var that = this
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this.dom = dom
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// update stuff already in DOM...
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for(var elem of [...dom.querySelectorAll('.editor textarea')]){
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elem.autoUpdateSize() }
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// heboard handling...
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dom.addEventListener('keydown',
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function(evt){
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evt.key in that.keyboard
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&& that.keyboard[evt.key].call(that, evt) })
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// toggle view/code of nodes...
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dom.addEventListener('focusin',
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function(evt){
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var node = evt.target
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if(node.nodeName == 'TEXTAREA'
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&& node?.previousElementSibling?.nodeName == 'SPAN'){
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node.value =
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that.__html2code__ ?
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that.__html2code__(node.previousElementSibling.innerHTML)
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: node.previousElementSibling.innerHTML
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node.updateSize() } })
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dom.addEventListener('focusout',
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function(evt){
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var node = evt.target
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if(node.nodeName == 'TEXTAREA'
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&& node?.previousElementSibling?.nodeName == 'SPAN'){
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node.previousElementSibling.innerHTML =
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that.__code2html__ ?
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that.__code2html__(node.value)
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: node.value } })
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return this },
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}
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//---------------------------------------------------------------------
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var getFocused = function(offset=0, selector='[tabindex]'){
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var focused = document.querySelector(`.editor ${selector}:focus`)
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|| (selector != 'textarea' ?
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getEditable()?.parentElement
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: null)
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if(offset == 0){
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return focused }
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if(offset == 'parent'){
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if(!focused){
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return document.querySelector(`.editor ${selector}`) }
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var elem = focused.parentElement
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return elem.classList.contains('editor') ?
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undefined
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: elem }
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if(offset == 'child'){
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if(!focused){
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return document.querySelector(`.editor ${selector}`) }
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return focused.querySelector('div') }
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if(offset == 'children'){
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if(!focused){
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return [] }
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return [...focused.children]
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.filter(function(elem){
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return elem.getAttribute('tabindex') }) }
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if(offset == 'siblings'){
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if(!focused){
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return [] }
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return [...focused.parentElement.children]
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.filter(function(elem){
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return elem.getAttribute('tabindex') }) }
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var focusable = [...document.querySelectorAll(`.editor ${selector}`)]
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.filter(function(e){
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return e.offsetParent != null })
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if(offset == 'all'){
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return focusable }
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// offset from focused...
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if(focused){
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var i = focusable.indexOf(focused) + offset
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i = i < 0 ?
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focusable.length + i
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: i % focusable.length
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return focusable[i]
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// nothing focused -> forst/last...
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} else {
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return focusable[offset > 0 ? 0 : focusable.length-1] } }
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// XXX would also be nice to make the move only if at first/last line/char
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// XXX would be nice to keep the cursor at roughly the same left offset...
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var getEditable = function(offset){
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return getFocused(offset, 'textarea') }
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var indentNode = function(indent=true){
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var cur = getFocused()
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if(!cur){
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return }
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var siblings = getFocused('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('.editor')){
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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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var toggleCollapse = function(node, state='next'){
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if(node == 'all'){
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return getFocused('all')
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.map(function(node){
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return toggleCollapse(node, state) }) }
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// toggleCollapse(<state>)
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if(!(node instanceof HTMLElement) && node != null){
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state = node
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node = null }
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node ??= getFocused()
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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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//updateTextareaSize(elem)
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}
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}
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return node }
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// XXX add reference node...
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var createBlock = function(place=none){
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var block = document.createElement('div')
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block.setAttribute('tabindex', '0')
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block.append(
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document.createElement('span'),
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document.createElement('textarea')
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.autoUpdateSize())
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var cur = getFocused()
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|| getEditable()?.parentElement
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place && cur
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&& cur[place](block)
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return block }
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var json = function(node){
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node ??= document.querySelector('.editor')
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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('span').innerHTML,
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collapsed: elem.getAttribute('collapsed') != null,
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children: json(elem)
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}] })
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.flat() }
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var markdown = function(node, indent=''){
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node ??= json(node)
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var text = ''
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for(var elem of node){
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text +=
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indent
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+'- '
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+ elem.text
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.replace(/\n/g, '\n '+indent)
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+'\n'
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+ markdown(elem.children || [], indent+' ') }
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return text }
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// XXX do a caret api...
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// XXX this works only on the current text node...
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// XXX only for text areas...
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var atLine = function(index){
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// XXX add support for range...
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var elem = getEditable()
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var text = elem.value
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var lines = text.split(/\n/g).length
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var offset = elem.selectionStart
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var line = text.slice(0, offset).split(/\n/g).length
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//console.log('---', line, 'of', lines, '---', offset, sel)
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// XXX STUB index handling...
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if(index == -1 && line == lines){
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return true
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} else if(index == 0 && line == 1){
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return true
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}
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return false
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}
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var LEFT_COLLAPSE = false
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var RIGHT_EXPAND = true
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// XXX add scrollIntoView(..) to nav...
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/**********************************************************************
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* vim:set ts=4 sw=4 : */
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20
experiments/outline-editor/generic.js
Executable file
20
experiments/outline-editor/generic.js
Executable file
@ -0,0 +1,20 @@
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/**********************************************************************
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*
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*
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*
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**********************************************************************/
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HTMLTextAreaElement.prototype.updateSize = function(){
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this.style.height = ''
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this.style.height = this.scrollHeight + 'px'
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return this }
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HTMLTextAreaElement.prototype.autoUpdateSize = function(){
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var that = this
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this.addEventListener('input',
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function(evt){
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that.updateSize() })
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return this }
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/**********************************************************************
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* vim:set ts=4 sw=4 : */
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@ -62,295 +62,16 @@
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}
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</style>
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<script src="generic.js"></script>
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<script src="editor.js"></script>
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<script>
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var updateTextareaSize = function(elem){
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elem.style.height = ''
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elem.style.height = elem.scrollHeight + 'px'
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return elem }
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var getFocused = function(offset=0, selector='[tabindex]'){
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var focused = document.querySelector(`.editor ${selector}:focus`)
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|| (selector != 'textarea' ?
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getEditable()?.parentElement
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: null)
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if(offset == 0){
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return focused }
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if(offset == 'parent'){
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if(!focused){
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return document.querySelector(`.editor ${selector}`) }
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var elem = focused.parentElement
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return elem.classList.contains('editor') ?
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undefined
|
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: elem }
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|
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if(offset == 'child'){
|
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if(!focused){
|
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return document.querySelector(`.editor ${selector}`) }
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return focused.querySelector('div') }
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if(offset == 'children'){
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if(!focused){
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return [] }
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return [...focused.children]
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.filter(function(elem){
|
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return elem.getAttribute('tabindex') }) }
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if(offset == 'siblings'){
|
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if(!focused){
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return [] }
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return [...focused.parentElement.children]
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.filter(function(elem){
|
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return elem.getAttribute('tabindex') }) }
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var focusable = [...document.querySelectorAll(`.editor ${selector}`)]
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.filter(function(e){
|
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return e.offsetParent != null })
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if(offset == 'all'){
|
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return focusable }
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||||
|
||||
// offset from focused...
|
||||
if(focused){
|
||||
var i = focusable.indexOf(focused) + offset
|
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i = i < 0 ?
|
||||
focusable.length + i
|
||||
: i % focusable.length
|
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return focusable[i]
|
||||
|
||||
// nothing focused -> forst/last...
|
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} else {
|
||||
return focusable[offset > 0 ? 0 : focusable.length-1] } }
|
||||
|
||||
// XXX would also be nice to make the move only if at first/last line/char
|
||||
// XXX would be nice to keep the cursor at roughly the same left offset...
|
||||
var getEditable = function(offset){
|
||||
return getFocused(offset, 'textarea') }
|
||||
|
||||
var indentNode = function(indent=true){
|
||||
var cur = getFocused()
|
||||
if(!cur){
|
||||
return }
|
||||
var siblings = getFocused('siblings')
|
||||
// deindent...
|
||||
if(!indent){
|
||||
var parent = cur.parentElement
|
||||
if(!parent.classList.contains('.editor')){
|
||||
var children = siblings.slice(siblings.indexOf(cur)+1)
|
||||
parent.after(cur)
|
||||
children.length > 0
|
||||
&& cur.append(...children) }
|
||||
// indent...
|
||||
} else {
|
||||
var parent = siblings[siblings.indexOf(cur) - 1]
|
||||
if(parent){
|
||||
parent.append(cur) } }
|
||||
return cur }
|
||||
|
||||
var toggleCollapse = function(node, state='next'){
|
||||
if(node == 'all'){
|
||||
return getFocused('all')
|
||||
.map(function(node){
|
||||
return toggleCollapse(node, state) }) }
|
||||
// toggleCollapse(<state>)
|
||||
if(!(node instanceof HTMLElement) && node != null){
|
||||
state = node
|
||||
node = null }
|
||||
node ??= getFocused()
|
||||
if(!node
|
||||
// only nodes with children can be collapsed...
|
||||
|| !node.querySelector('[tabindex]')){
|
||||
return }
|
||||
state = state == 'next' ?
|
||||
!node.getAttribute('collapsed')
|
||||
: state
|
||||
if(state){
|
||||
node.setAttribute('collapsed', '')
|
||||
} else {
|
||||
node.removeAttribute('collapsed')
|
||||
for(var elem of [...node.querySelectorAll('textarea')]){
|
||||
updateTextareaSize(elem) }
|
||||
}
|
||||
return node }
|
||||
|
||||
// XXX add reference node...
|
||||
var createBlock = function(place=none){
|
||||
var block = document.createElement('div')
|
||||
block.setAttribute('tabindex', '0')
|
||||
block.innerHTML = `<span></span><textarea></textarea>`
|
||||
var cur = getFocused()
|
||||
|| getEditable()?.parentElement
|
||||
place && cur
|
||||
&& cur[place](block)
|
||||
return block }
|
||||
|
||||
var json = function(node){
|
||||
node ??= document.querySelector('.editor')
|
||||
return [...node.children]
|
||||
.map(function(elem){
|
||||
return elem.nodeName != 'DIV' ?
|
||||
[]
|
||||
: [{
|
||||
text: elem.querySelector('span').innerHTML,
|
||||
collapsed: elem.getAttribute('collapsed') != null,
|
||||
children: json(elem)
|
||||
}] })
|
||||
.flat() }
|
||||
var markdown = function(node, indent=''){
|
||||
node ??= json(node)
|
||||
var text = ''
|
||||
for(var elem of node){
|
||||
text +=
|
||||
indent
|
||||
+'- '
|
||||
+ elem.text
|
||||
.replace(/\n/g, '\n '+indent)
|
||||
+'\n'
|
||||
+ markdown(elem.children || [], indent+' ') }
|
||||
return text }
|
||||
|
||||
// XXX do a caret api...
|
||||
|
||||
// XXX this works only on the current text node...
|
||||
// XXX only for text areas...
|
||||
var atLine = function(index){
|
||||
// XXX add support for range...
|
||||
var elem = getEditable()
|
||||
var text = elem.value
|
||||
var lines = text.split(/\n/g).length
|
||||
var offset = elem.selectionStart
|
||||
var line = text.slice(0, offset).split(/\n/g).length
|
||||
|
||||
//console.log('---', line, 'of', lines, '---', offset, sel)
|
||||
|
||||
// XXX STUB index handling...
|
||||
if(index == -1 && line == lines){
|
||||
return true
|
||||
} else if(index == 0 && line == 1){
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
var LEFT_COLLAPSE = false
|
||||
var RIGHT_EXPAND = true
|
||||
|
||||
// XXX add scrollIntoView(..) to nav...
|
||||
var keyboard = {
|
||||
// vertical navigation...
|
||||
ArrowUp: function(evt){
|
||||
var action = getFocused
|
||||
var edited = document.querySelector('.editor textarea:focus')
|
||||
if(edited){
|
||||
if(!atLine(0)){
|
||||
return }
|
||||
action = getEditable }
|
||||
evt.preventDefault()
|
||||
action(-1)?.focus() },
|
||||
ArrowDown: function(evt, offset=1){
|
||||
var action = getFocused
|
||||
var edited = document.querySelector('.editor textarea:focus')
|
||||
if(edited){
|
||||
if(!atLine(-1)){
|
||||
return }
|
||||
//window.getSelection()
|
||||
action = getEditable }
|
||||
evt.preventDefault()
|
||||
action(1)?.focus() },
|
||||
|
||||
// horizontal navigation / collapse...
|
||||
// XXX if at start/end of element move to prev/next...
|
||||
ArrowLeft: function(evt){
|
||||
if(document.querySelector('.editor textarea:focus')){
|
||||
// XXX if at end of element move to next...
|
||||
return }
|
||||
if(LEFT_COLLAPSE){
|
||||
toggleCollapse(true)
|
||||
getFocused('parent')?.focus()
|
||||
} else {
|
||||
evt.shiftKey ?
|
||||
toggleCollapse(true)
|
||||
: getFocused('parent')?.focus() } },
|
||||
ArrowRight: function(evt){
|
||||
if(document.querySelector('.editor textarea:focus')){
|
||||
// XXX if at end of element move to next...
|
||||
return }
|
||||
if(RIGHT_EXPAND){
|
||||
toggleCollapse(false)
|
||||
var child = getFocused('child')
|
||||
child?.focus()
|
||||
if(!child){
|
||||
getFocused(1)?.focus() }
|
||||
} else {
|
||||
evt.shiftKey ?
|
||||
toggleCollapse(false)
|
||||
: getFocused('child')?.focus() } },
|
||||
|
||||
// indent...
|
||||
Tab: function(evt){
|
||||
evt.preventDefault()
|
||||
var editable = getEditable()
|
||||
var node = indentNode(!evt.shiftKey)
|
||||
;(editable ?
|
||||
editable
|
||||
: node)?.focus() },
|
||||
|
||||
// edit mode...
|
||||
O: function(evt){
|
||||
if(evt.target.nodeName != 'TEXTAREA'){
|
||||
evt.preventDefault()
|
||||
createBlock('before')?.querySelector('textarea')?.focus() } },
|
||||
o: function(evt){
|
||||
if(evt.target.nodeName != 'TEXTAREA'){
|
||||
evt.preventDefault()
|
||||
createBlock('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' ?
|
||||
createBlock('after')?.querySelector('textarea')?.focus()
|
||||
: getFocused()?.querySelector('textarea')?.focus() },
|
||||
Escape: function(evt){
|
||||
document.querySelector('textarea:focus')?.parentElement?.focus() },
|
||||
Delete: function(evt){
|
||||
if(evt.target.isContentEditable){
|
||||
return }
|
||||
var next = getFocused(1)
|
||||
getFocused()?.remove()
|
||||
next?.focus() },
|
||||
}
|
||||
document.addEventListener('keydown',
|
||||
function(evt){
|
||||
evt.key in keyboard
|
||||
&& keyboard[evt.key](evt) })
|
||||
|
||||
document.addEventListener('input',
|
||||
function(evt){
|
||||
updateTextareaSize(evt.target) })
|
||||
|
||||
// XXX add support for markup handlers...
|
||||
document.addEventListener('focusin',
|
||||
function(evt){
|
||||
var node = evt.target
|
||||
if(node.nodeName == 'TEXTAREA'
|
||||
&& node?.previousElementSibling?.nodeName == 'SPAN'){
|
||||
node.value = node.previousElementSibling.innerHTML
|
||||
updateTextareaSize(node) } })
|
||||
document.addEventListener('focusout',
|
||||
function(evt){
|
||||
var node = evt.target
|
||||
if(node.nodeName == 'TEXTAREA'
|
||||
&& node?.previousElementSibling?.nodeName == 'SPAN'){
|
||||
node.previousElementSibling.innerHTML = node.value } })
|
||||
|
||||
var setup = function(){
|
||||
for(var elem of [...document.querySelectorAll('.editor textarea')]){
|
||||
updateTextareaSize(elem) } }
|
||||
window.editor = {
|
||||
__proto__: Outline,
|
||||
}.setup(
|
||||
document.querySelector('.editor'))
|
||||
}
|
||||
|
||||
</script>
|
||||
</head>
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user