93 lines
2.9 KiB
JavaScript
93 lines
2.9 KiB
JavaScript
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//----------------------------------------------------------
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//------ JAVASCRIPT HOOK FUNCTIONS FOR GRAVITY FORMS -------
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//----------------------------------------------------------
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if ( ! gform ) {
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document.addEventListener( 'gform_main_scripts_loaded', function() { gform.scriptsLoaded = true; } );
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window.addEventListener( 'DOMContentLoaded', function() { gform.domLoaded = true; } );
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var gform = {
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domLoaded: false,
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scriptsLoaded: false,
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initializeOnLoaded: function( fn ) {
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if ( gform.domLoaded && gform.scriptsLoaded ) {
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fn();
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} else if( ! gform.domLoaded && gform.scriptsLoaded ) {
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window.addEventListener( 'DOMContentLoaded', fn );
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} else {
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document.addEventListener( 'gform_main_scripts_loaded', fn );
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}
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},
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hooks: { action: {}, filter: {} },
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addAction: function( action, callable, priority, tag ) {
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gform.addHook( 'action', action, callable, priority, tag );
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},
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addFilter: function( action, callable, priority, tag ) {
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gform.addHook( 'filter', action, callable, priority, tag );
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},
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doAction: function( action ) {
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gform.doHook( 'action', action, arguments );
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},
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applyFilters: function( action ) {
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return gform.doHook( 'filter', action, arguments );
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},
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removeAction: function( action, tag ) {
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gform.removeHook( 'action', action, tag );
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},
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removeFilter: function( action, priority, tag ) {
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gform.removeHook( 'filter', action, priority, tag );
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},
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addHook: function( hookType, action, callable, priority, tag ) {
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if ( undefined == gform.hooks[hookType][action] ) {
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gform.hooks[hookType][action] = [];
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}
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var hooks = gform.hooks[hookType][action];
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if ( undefined == tag ) {
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tag = action + '_' + hooks.length;
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}
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if( priority == undefined ){
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priority = 10;
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}
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gform.hooks[hookType][action].push( { tag:tag, callable:callable, priority:priority } );
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},
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doHook: function( hookType, action, args ) {
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// splice args from object into array and remove first index which is the hook name
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args = Array.prototype.slice.call(args, 1);
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if ( undefined != gform.hooks[hookType][action] ) {
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var hooks = gform.hooks[hookType][action], hook;
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//sort by priority
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hooks.sort(function(a,b){return a["priority"]-b["priority"]});
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hooks.forEach( function( hookItem ) {
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hook = hookItem.callable;
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if(typeof hook != 'function')
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hook = window[hook];
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if ( 'action' == hookType ) {
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hook.apply(null, args);
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} else {
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args[0] = hook.apply(null, args);
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}
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} );
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}
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if ( 'filter'==hookType ) {
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return args[0];
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}
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},
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removeHook: function( hookType, action, priority, tag ) {
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if ( undefined != gform.hooks[hookType][action] ) {
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var hooks = gform.hooks[hookType][action];
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hooks = hooks.filter( function(hook, index, arr) {
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var removeHook = (undefined==tag||tag==hook.tag) && (undefined==priority||priority==hook.priority);
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return !removeHook;
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} );
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gform.hooks[hookType][action] = hooks;
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}
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}
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};
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}
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