64 lines
1.9 KiB
JavaScript
64 lines
1.9 KiB
JavaScript
CNVS.FontSizer = function() {
|
|
var __core = SEMICOLON.Core;
|
|
|
|
return {
|
|
init: function(selector) {
|
|
if( __core.getSelector(selector, false, false).length < 1 ){
|
|
return true;
|
|
}
|
|
|
|
__core.initFunction({ class: 'has-plugin-fontsizer', event: 'pluginFontSizerReady' });
|
|
|
|
selector = __core.getSelector( selector, false );
|
|
if( selector.length < 1 ){
|
|
return true;
|
|
}
|
|
|
|
selector.forEach( function(elem) {
|
|
var target = elem.getAttribute('data-target');
|
|
var targetEl = document.querySelector(target);
|
|
var step = elem.getAttribute('data-step') || 10;
|
|
var min = elem.getAttribute('data-min') || 12;
|
|
var max = elem.getAttribute('data-max') || 24;
|
|
var defaultSize = Number(document.defaultView.getComputedStyle(targetEl).getPropertyValue('font-size').split('px')[0]);
|
|
var percent = defaultSize * Number(step) * .01;
|
|
|
|
var defaultBtn = elem.querySelector('.font-size-default');
|
|
var minusBtn = elem.querySelector('.font-size-minus');
|
|
var plusBtn = elem.querySelector('.font-size-plus');
|
|
|
|
if( defaultBtn ) {
|
|
defaultBtn.onclick = function(e) {
|
|
e.preventDefault();
|
|
targetEl.style.fontSize = defaultSize + 'px';
|
|
};
|
|
}
|
|
|
|
if( minusBtn ) {
|
|
elem.querySelector('.font-size-minus').onclick = function(e) {
|
|
e.preventDefault();
|
|
|
|
var current = Number(document.defaultView.getComputedStyle(targetEl).getPropertyValue('font-size').split('px')[0]);
|
|
var newSize = current - percent;
|
|
if( newSize >= min ) {
|
|
targetEl.style.fontSize = newSize + 'px';
|
|
}
|
|
};
|
|
}
|
|
|
|
if( plusBtn ) {
|
|
elem.querySelector('.font-size-plus').onclick = function(e) {
|
|
e.preventDefault();
|
|
|
|
var current = Number(document.defaultView.getComputedStyle(targetEl).getPropertyValue('font-size').split('px')[0]);
|
|
var newSize = current + percent;
|
|
if( newSize <= max ) {
|
|
targetEl.style.fontSize = newSize + 'px';
|
|
}
|
|
};
|
|
}
|
|
});
|
|
}
|
|
};
|
|
}();
|