The problem
This happens only in Firefox. Important: I am saving the caret's position with Rangy: - when click the content editable div - on keyup - when adding an external html element (as a node) to the content editable div I need the position saved constantly through multiple means to be able to insert html elements on click (I have some tags).
When I click in the contentEditable div and the div is empty (first focus, let's say), I cannot see the caret unless I start typing. Beside, if the caret is at the end, again I cannot see it.
Another weird behaviour is that I cannot use the arrows to navigate between the text in the contentEditable div.
If I remove the functions which (constantly) saves the caret's position (on input, click etc.) the caret returns to normal (the caret is visible).
The road so far
I have went through most of the topics regarding rangy and carets on Stack and read rangy's docs but I am still trying to grasp how to properly use.
The problem appears when I start saving the position of the caret. Clearly I should be doing some sort of reset or a clear.. but from what I understand, those seem counterproductive (as from my understanding they destroy the saved caret location).
The content editable div
<div class="input__boolean input__boolean--no-focus">
<div
@keydown.enter.prevent
@blur="addPlaceholder"
@keyup="saveCursorLocation($event); fixDelete(); clearHtmlElem($event);"
@input="updateBooleanInput($event); clearHtmlElem($event);"
@paste="pasted"
v-on:click="clearPlaceholder(); saveCursorLocation($event);"
class="input__boolean-content"
ref="divInput"
contenteditable="true">Cuvinte cheie, cautare booleana..</div>
</div>
My methods/functions
inputLength($event){
this.input_length = $event.target.innerText.length;
if(this.input_length == 0)
this.typed = false;
},
addPlaceholder(){
if(this.input_length == 0 && this.typed == false){
this.$refs.divInput.innerHTML = 'Cuvinte cheie, cautare booleana..'
}
},
clearPlaceholder(){
if(this.input_length == 0 && this.typed == false){
this.$refs.divInput.innerHTML = '';
}
},
updateBooleanInput($event){
this.typed = true;
this.inputLength($event);
},
saveCursorLocation($event){
if($event.which != 8){
if(this.saved_sel)
rangy.removeMarkers(this.saved_sel)
this.saved_sel = rangy.saveSelection();
}
// if(this.input_length == 0 && this.typed == false){
// var div = this.$refs.divInput;
// var sel = rangy.getSelection();
// sel.collapse(div, 0);
// }
},
insertNode: function(node){
var selection = rangy.getSelection();
var range = selection.getRangeAt(0);
range.insertNode(node);
range.setStartAfter(node);
range.setEndAfter(node);
selection.removeAllRanges();
selection.addRange(range);
},
addBooleanTag($event){
// return this.$refs.ChatInput.insertEmoji($event.img);
this.$refs.divInput.focus();
console.log(this.input_length);
if(this.typed == false & this.input_length == 0){
this.$refs.divInput.innerHTML = ''
var space = '';
this.typed = true
this.saveCursorLocation($event);
}
rangy.restoreSelection(this.saved_sel);
var node = document.createElement('img');
node.src = $event.img;
node.className = "boolean-button--img boolean-button--no-margin";
node.addEventListener('click', (event) => {
// event.currentTarget.node.setAttribute('contenteditable','false');
this.$refs.divInput.removeChild(node);
})
this.insertNode(node);
this.saveCursorLocation($event);
},
clearHtmlElem($event){
var i = 0;
var temp = $event.target.querySelectorAll("span, br");
if(temp.length > 0){
for(i = 0; i < temp.length; i++){
if(!temp[i].classList.contains('rangySelectionBoundary')){
if (temp[i].tagName == "br"){
temp[i].parentNode.removeChild(temp[i]);
} else {
temp[i].outerHTML = temp[i].innerHTML;
}
}
}
}
},
pasted($event){
$event.preventDefault();
var text = $event.clipboardData.getData('text/plain');
this.insert(document.createTextNode(text));
this.inputLength($event);
this.typed == true;
},
insert(node){
this.$refs.divInput.focus();
this.insertNode(node);
this.saveCursorLocation($event);
},
As you can see in the saveCursorLocation(), I was trying to solve the scenario in which you click in the contentEditable div and there's no caret - which is confusing for the user.
// if(this.input_length == 0 && this.typed == false){
// var div = this.$refs.divInput;
// var sel = rangy.getSelection();
// sel.collapse(div, 0);
// }
It was a dead end - most likely because of my poor understanding of Rangy and how should I use those functions.
Expected behaviour vs actual results - on Firefox
When I click on the contentEditable div I expect the caret to appear (while in the background to save my position). When typing, I expect the caret to appear after the last typed character while also on keyup to save my caret's position. Also I expect to be able to navigate the text via left/right arrows and see the caret when doing so.
All of these are generated by
v-on:click="..... saveCursorLocation($event);"
and
@keyup="saveCursorLocation($event);....."
If anybody believes that it would be helpful, I can record the content editable div and its behaviour in Firefox.
from Caret disappears in firefox when saving its possition with Rangy
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