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Don't allow inserting empty equations

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Keep the model free of invisible empty equation tags
This commit is contained in:
Jules Bertholet 2021-05-09 22:43:53 -04:00 committed by Tony Narlock
parent 2ad6076d6c
commit ba34f1f3c1
3 changed files with 21 additions and 14 deletions
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1
demo/app.js
View File

@ -17,5 +17,6 @@ ClassicEditor.create(document.querySelector("#editor"), {
CKEditorInspector.attach(editor)
})
.catch((error) => {
console.error(error);
console.error(error.stack);
});

28
src/ui/mainformview.js
View File

@ -30,16 +30,16 @@ export default class MainFormView extends View {
// Create key event & focus trackers
this._createKeyAndFocusTrackers();
// Submit button
this.saveButtonView = this._createButton( t( 'Save' ), checkIcon, 'ck-button-save', null );
this.saveButtonView.type = 'submit';
// Equation input
this.mathInputView = this._createMathInput();
// Display button
this.displayButtonView = this._createDisplayButton();
// Submit button
this.saveButtonView = this._createButton( t( 'Save' ), checkIcon, 'ck-button-save', null );
this.saveButtonView.type = 'submit';
// Cancel button
this.cancelButtonView = this._createButton( t( 'Cancel' ), cancelIcon, 'ck-button-cancel', 'cancel' );
@ -159,9 +159,10 @@ export default class MainFormView extends View {
const mathInput = new LabeledInputView( this.locale, InputTextView );
const inputView = mathInput.inputView;
mathInput.infoText = t( 'Insert equation in TeX format.' );
inputView.on( 'input', () => {
if ( this.previewEnabled ) {
const equationInput = inputView.element.value.trim();
const onInput = () => {
if ( inputView.element != null ) {
let equationInput = inputView.element.value.trim();
// If input has delimiters
if ( hasDelimiters( equationInput ) ) {
@ -171,17 +172,22 @@ export default class MainFormView extends View {
// Remove delimiters from input field
inputView.element.value = params.equation;
equationInput = params.equation;
// update display button and preview
this.displayButtonView.isOn = params.display;
}
if ( this.previewEnabled ) {
// Update preview view
this.mathView.value = params.equation;
}
} else {
this.mathView.value = equationInput;
}
this.saveButtonView.isEnabled = !!equationInput;
}
} );
};
inputView.on( 'render', onInput );
inputView.on( 'input', onInput );
return mathInput;
}