根据内联样式的值，将“内联样式”替换为“ css类”

Question

My site has CMS, so users can directly insert texts and images. CMS ui allows to float left/right images, applying an inline style to IMG tags.

<img src='...' style='float:left'>

I would like to detect when an IMG has a float:left/right style and replace it with a class in order to declare more properties for it like the following example:

.floated-left
{
  float:left;
  margin-right:20px;
  border-left:solid 5px red;
  ....
}

I thought about something like this:

    if ( $("article").find('img').css('float') == 'left')
    {
       this.addClass('floated-left');
    }

But seems that "if clause" never be true. (I know that probably also this.addClass() is wrong, but neither alert() is never fired at the moment)

Can you help me?

Answer 1

Use attr instead of css for selecting inline styled objects:

$('article img').each(function() {
   if ( $(this).attr('style') == 'float:left') {

      $(this).removeAttr('style').addClass('floated-left');
   }
});

if some of object's style is different, try this way:

$('article img').each(function() {
   if ( $(this).attr('style').indexOf('float:left') > -1 ) {

      var targetedStyle = $(this).attr('style').replace('float:left','');
      $(this).attr('style',targetedStyle).addClass('floated-left');
   }
});

Answer 2

In order to apply more declarations, you could simply achieve that by pure CSS:

img[style*="float:left"],
img[style*="float: left"] {
    margin-right : 20px;
    border-left  : solid 5px red;
}

You could play with CSS attribute selectors to select the valid image/element.