Combine 'Change' and 'Done' buttons into one

Includes addition of classes by JS to ensure CSS
selectors don't have to reference the data
attributes.
This commit is contained in:
Tom Byers
2019-05-09 16:36:31 +01:00
parent 923ac7190c
commit 7328649537
3 changed files with 108 additions and 115 deletions

View File

@@ -12,34 +12,37 @@
this.$formGroup = $(component);
this.$fieldset = this.$formGroup.find('fieldset');
this.$checkboxes = this.$fieldset.find('input[type=checkbox]');
this.summary.$el = this.$formGroup.find('.selection-summary');
this.fieldLabel = this.$formGroup.data('fieldLabel');
this.total = this.$checkboxes.length;
this.legendText = this.$fieldset.find('legend').text().trim();
this.expanded = false;
const legendText = this.$fieldset.find('legend').text().trim();
this.addHeadingHideLegend();
this.addHeadingHideLegend(legendText);
this.addFooterAndDoneButton(legendText);
// generate summary and footer
this.summary.$el = this.$formGroup.find('.selection-summary');
this.footer.$el = this.footer.getEl(this);
this.footer.update(this);
// create summary from component pieces and match text to current selection
this.summary.addContent(legendText, this.fieldLabel);
this.summary.addContent(this.legendText, this.fieldLabel);
this.summary.update(this.getSelection(), this.total, this.fieldLabel);
this.$fieldset.before(this.summary.$el);
// add custom classes
this.$formGroup.addClass('selection-wrapper');
this.$fieldset.addClass('selection-content');
// hide checkboxes
this.$fieldset.hide();
this.expanded = false;
// set semantic relationships with aria attributes
this.addARIAToButtons();
this.bindEvents();
};
this.getSelection = function() { return this.$checkboxes.filter(':checked').length; };
this.addHeadingHideLegend = function(legendText) {
this.addHeadingHideLegend = function() {
const headingLevel = this.$formGroup.data('heading-level') || '2';
this.$heading = $(`<h${headingLevel} class="heading-small">${legendText}</h${headingLevel}>`);
this.$heading = $(`<h${headingLevel} class="heading-small">${this.legendText}</h${headingLevel}>`);
this.$fieldset.before(this.$heading);
this.$fieldset.find('legend').addClass('visuallyhidden');
@@ -54,17 +57,11 @@
}[field] || `No ${field}s`)
},
addContent: function(legendText, fieldLabel) {
const $content = $(`<p>
<span class="selection-summary__text"></span>
<button class="button button-secondary">Change<span class="visuallyhidden"> ${legendText}</span></button>
</p>`);
this.$text = $content.find('.selection-summary__text');
this.$changeButton = $content.find('button');
this.$text = $(`<p class="selection-summary__text" />`);
if (fieldLabel === 'folder') { this.$text.addClass('selection-summary__text--folders'); }
this.$el.append($content);
this.$el.append(this.$text);
},
update: function(selection, total, field) {
let template;
@@ -80,34 +77,38 @@
this.$text.html(this.templates[template](selection, total, field));
}
};
this.addFooterAndDoneButton = function (legendText) {
this.$footer = $(`<div class="selection-footer">
<button class="button button-secondary">
<span class="visuallyhidden">${legendText} are </span>
Done
</button>
</div>`);
this.footer = {
buttonContent: {
change: (fieldLabel) => `Choose ${fieldLabel}s`,
done: (fieldLabel) => `Done<span class="visuallyhidden"> choosing ${fieldLabel}s</span>`
},
getEl: function (module) {
const buttonState = module.expanded ? 'done' : 'change';
const buttonContent = this.buttonContent[buttonState](module.fieldLabel);
this.$doneButton = this.$footer.find('.button');
this.$fieldset.append(this.$footer);
};
this.addARIAToButtons = function () {
const aria = {
'aria-expanded': this.expanded,
'aria-controls': this.$fieldset.attr('id')
};
return $(`<div class="selection-footer">
<button
class="button button-secondary"
aria-expanded="${module.expanded ? 'true' : 'false'}"
aria-controls="${module.$fieldset.attr('id')}">
${buttonContent}
</button>
</div>`);
},
update: function (module) {
this.$el.remove();
this.$el = this.getEl(module);
this.summary.$changeButton.attr(aria);
this.$doneButton.attr(aria);
module.$formGroup.append(this.$el);
}
};
this.expand = function(e) {
if (e !== undefined) { e.preventDefault(); }
if (!this.expanded) {
this.$fieldset.show();
this.summary.$changeButton.attr('aria-expanded', true);
this.$doneButton.attr('aria-expanded', true);
this.expanded = true;
this.footer.update(this);
}
// shift focus whether expanded or not
@@ -118,22 +119,27 @@
if (this.expanded) {
this.$fieldset.hide();
this.summary.$changeButton.attr('aria-expanded', false);
this.$doneButton.attr('aria-expanded', false);
this.expanded = false;
this.footer.update(this);
}
// shift focus whether expanded or not
_focusTextElement(this.summary.$text);
};
this.handleClick = function(e) {
if (this.expanded) {
this.collapse(e);
} else {
this.expand(e);
}
};
this.handleSelection = function(e) {
this.summary.update(this.getSelection(), this.total, this.fieldLabel);
};
this.bindEvents = function() {
const self = this;
this.summary.$changeButton.on('click', this.expand.bind(this));
this.$doneButton.on('click', this.collapse.bind(this));
this.$formGroup.on('click', '.button', this.handleClick.bind(this));
this.$checkboxes.on('click', this.handleSelection.bind(this));
// take summary out of tab order when focus moves