now placing caret correctly when moving between nodes...

Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2023-11-10 15:21:38 +03:00
parent 42095da907
commit 4dbb1a221c
3 changed files with 80 additions and 20 deletions

View File

@ -1947,7 +1947,23 @@ var Outline = {
// XXX move the code here into methods/actions...
// XXX use keyboard.js...
__overtravel_timeout: undefined,
// XXX this needs to be dropped on any edit keyboard input, not sure
// how to do this cleanly (including focus clicks)...
__caret_x: undefined,
keyboard: {
// XXX might be a good feature to add to keyboard.js...
// ...might even be fun to extend this and add key classes,
// like:
// LetterKey
// ModifierKey
// FunctionKey
// ...
Any: function(evt, key){
if(this.get('edited')
&& key != 'ArrowUp'
&& key != 'ArrowDown'){
this.__caret_x = undefined } },
// vertical navigation...
// XXX this is a bit hacky but it works -- the caret blinks at
// start/end of block before switching to next, would be
@ -1968,10 +1984,29 @@ var Outline = {
var edited = this.get('edited')
if(edited){
var line = edited.getTextGeometry().line
if(line == 0){
var g = edited.getTextGeometry()
if(g.line == 0){
evt.preventDefault()
that.edit('prev') }
//var left = edited.getBoundingClientRect().x + g.offsetLeft
var left = this.__caret_x =
this.__caret_x
?? edited.getBoundingClientRect().x + g.offsetLeft
edited = that.edit('prev')
// keep caret horizontally constrained...
var bottom = edited.getBoundingClientRect().bottom
/*/ XXX CARET_V_MOVE this is not correct yet...
var view = this.get(edited).querySelector('.view')
var c = getCharOffset(view, left, bottom - 1)
var m = getMarkdownOffset(edited.value, view.innerText, c)
console.log('---', c, m)
edited.selectionStart =
edited.selectionEnd =
c - m }
/*/
edited.selectionStart =
edited.selectionEnd =
edited.getTextOffsetAt(left, bottom - 1) }
//*/
} else {
evt.preventDefault()
this.focus('focused', -1) } },
@ -1991,10 +2026,29 @@ var Outline = {
var edited = this.get('edited')
if(edited){
var {line, lines} = edited.getTextGeometry()
if(lines == 0 || line == lines - 1){
var g = edited.getTextGeometry()
if(g.lines == 0 || g.line == g.lines - 1){
evt.preventDefault()
that.edit('next') }
//var left = edited.getBoundingClientRect().x + g.offsetLeft
var left = this.__caret_x =
this.__caret_x
?? edited.getBoundingClientRect().x + g.offsetLeft
edited = that.edit('next')
// keep caret horizontally constrained...
var top = edited.getBoundingClientRect().y
/* XXX CARET_V_MOVE this needs fixing...
var view = this.get(edited).querySelector('.view')
var c = getCharOffset(view, left, top - 1)
var m = getMarkdownOffset(edited.value, view.innerText, c)
console.log('---', c, m)
edited.selectionStart =
edited.selectionEnd =
c - m }
/*/
edited.selectionStart =
edited.selectionEnd =
edited.getTextOffsetAt(left, top + 1) }
//*/
} else {
evt.preventDefault()
this.focus('focused', 1) } },
@ -2305,11 +2359,11 @@ var Outline = {
// place the cursor where the user clicked in code/text...
if(elem.classList.contains('code')
&& document.activeElement !== elem){
that.__caret_x = undefined
var view = that.get(elem).querySelector('.view')
var initial = elem.selectionStart
var c = getCharOffset(view, evt.clientX, evt.clientY)
var m = getMarkdownOffset(elem.value, view.innerText, c)
console.log('---', c, m)
// selecting an element with text offset by markup...
if(m != 0){
evt.preventDefault()
@ -2416,8 +2470,10 @@ var Outline = {
&& keys.push('s_' + evt.key)
keys.push(evt.key)
for(var k of keys){
if('Any' in that.keyboard){
that.keyboard.Any.call(that, evt, k) }
if(k in that.keyboard){
that.keyboard[k].call(that, evt)
that.keyboard[k].call(that, evt, k)
break } } })
// update code block...
outline.addEventListener('keyup',

View File

@ -109,29 +109,33 @@ HTMLTextAreaElement.prototype.getTextGeometry = function(func){
var style = getComputedStyle(this)
var paddingV = parseFloat(style.paddingTop) + parseFloat(style.paddingBottom)
var carret = document.createElement('span')
carret.innerText = '|'
carret.style.margin = '0px'
carret.style.padding = '0px'
var caret = document.createElement('span')
caret.innerText = '|'
caret.style.margin = '0px'
caret.style.padding = '0px'
var span = cloneAsOffscreenSpan(this)
span.append(
text.slice(0, offset),
carret,
// NOTE: wee need the rest of the text for the carret to be typeset
caret,
// NOTE: wee need the rest of the text for the caret to be typeset
// to the correct line...
text.slice(offset))
document.body.append(span)
var res = {
length: text.length,
lines: Math.floor(
(this.offsetHeight - paddingV)
/ carret.offsetHeight),
line: Math.floor(carret.offsetTop / carret.offsetHeight),
/ caret.offsetHeight),
line: Math.floor(caret.offsetTop / caret.offsetHeight),
caretHeight: caret.offsetHeight,
offset: offset,
offsetLeft: carret.offsetLeft,
offsetTop: carret.offsetTop,
offsetLeft: caret.offsetLeft,
offsetTop: caret.offsetTop,
}
if(typeof(func) == 'function'){

View File

@ -118,8 +118,7 @@ var setup = function(){
- _also this would be a nice opportunity to start the move to a newer electron version_
- might be a good idea to make the heading level depend on its depth...
- might be a good idea to think how to avoid the constant selections on focus...
- Q: do we want to place the caret when moving between nodes???
- _would be nice to remember the caret horizontal offset for vertical movement_
- Q: when moving up/down between nodes do we want to place the caret relative to markdown (current) or to view? (see: CARET_V_MOVE)
- Q: should we use `HTMLTextAreaElement.autoUpdateSize(..)` or handle it globally in setup???
- _...I'm leaning towards the later..._
- Q: can we place a cursor in a table correctly???
@ -221,6 +220,7 @@ var setup = function(){
- `<editable/>` -- field marker
- each child node will copy the template and allow editing of only fields
- not clear how to handle template changes...
- DONE place the caret when moving between nodes
- DONE selecting expanded code by _click-n-drag_
collapsed:: true
- # this is a test