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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
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72 | if ( intval($content_width) > 0 && 'edit' == $context ) // Only in admin. Assume that theme authors know what they're doing. |
73 | $max_width = min( intval($content_width), $max_width ); |
74 | } |
75 | // $size == 'full' has no constraint |
76 | else { |
77 | $max_width = $width; |
78 | $max_height = $height; |
79 | } |
80 |
|
81 | list( $max_width, $max_height ) = apply_filters( 'editor_max_image_size', array( $max_width, $max_height ), $size, $context ); |
82 |
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83 | return wp_constrain_dimensions( $width, $height, $max_width, $max_height ); |
84 | } |
85 |
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86 | /** |
87 | * Retrieve width and height attributes using given width and height values. |
88 | * |
89 | * Both attributes are required in the sense that both parameters must have a |
90 | * value, but are optional in that if you set them to false or null, then they |