I'm having some problems to apply a background-color in the textarea of a ckeditor instance.
When the user clicks on submit without adding any text, it's shown a message telling him to fill all the required fields, and these required fields areas all with the text-fields set with background-color: #CFC183;
.
As the ckeditor is created with javascript code, I was using it to try to check if there's any text entered in the text area. if there's no character, I apply the changes. When I apply in the console this code:
CKEDITOR.instances.body.document.getBody().setStyle('background-color', '#CFC183');
It applies the background exactly like I want to. So, I added this javascript code in my javascript file to try to manage it, but doesn't seems to be working. Here's my code:
var editorInstance = CKEDITOR.replace('body', { toolbar : 'Full' });
editorInstance.on("instanceReady", function (ev) {
var editorCKE = CKEDITOR.instances.body; readyMap[editorCKE] = true;
editorCKE.setReadOnly(true);
});
var hasText = CKEDITOR.instances.body.document.getBody().getChild(0).getText();
if (!hasText) {
CKEDITOR.on('instanceCreated', function(e) {
e.editor.document.getBody().setStyle('background-color', '#CFC183');
});
}
Firebug shows this error message:
TypeError: CKEDITOR.instances.body.document is undefined
I'm not that good at Javascript, so is there anything wrong with my code? I already checked this question here, so I believe there's something wrong with my javascript code and I want your help, please.
I guess that you've got an error in this line:
var hasText = CKEDITOR.instances.body.document.getBody().getChild(0).getText();
This is because you're trying to get document element before it's ready (before instanceReady
event).
The same error will be thrown here:
if (!hasText) {
CKEDITOR.on('instanceCreated', function(e) {
e.editor.document.getBody().setStyle('background-color', '#CFC183');
});
}
Again - instanceCreated
is still too early. You have to move all that code to instanceReady
listener. You'll have something like (I'm not sure if I understand what you're trying to achieve):
var editor = CKEDITOR.replace( 'body', { toolbar: 'Full' } );
editor.on( 'instanceReady', function( evt ) {
readyMap[ editor.name ] = true;
editor.setReadOnly( true );
var hasText = editor.document.getBody().getFirst().getText();
if ( !hasText ) {
editor.document.getBody().setStyle( 'background-color', '#CFC183' );
}
} );
As you can see, there is one more issue in your code:
readyMap[editorCKE] = true;
In JS there are no weak maps (yet, but they will be introduced soon). Only strings can be used as a keys of an object. In your case toString()
method will be called on editorCKE
, which returns [object Object]
. That's why I added name
property there.
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