initial

wp-content/plugins/gravityforms/js/page_conditional_logic.js

@@ -0,0 +1,178 @@
+var GFPageConditionalLogic = function (args) {
+    var self = this,
+        $ = jQuery;
+
+    /**
+     * Initialize Feed Ordering
+     */
+    self.init = function () {
+
+        // Assign options to instance.
+        self.options = args;
+
+        self.triggerInputIds = self.getTriggerInputIds(self.options.pages);
+
+        self.formWrapper = '#gform_wrapper_' + self.options.formId;
+
+		self.startAtZero = $(self.formWrapper + ' .gf_progressbar_wrapper').data('startAtZero');
+
+        self.evaluatePages();
+
+        self.bindEvents();
+
+    };
+
+    self.bindEvents = function () {
+
+        gform.addAction('gform_input_change', function (elem, formId, inputId) {
+
+            var fieldId = parseInt(inputId, 10) + '';
+            var isTriggeredInput = $.inArray(inputId, self.triggerInputIds) !== -1 || $.inArray(fieldId, self.triggerInputIds) !== -1;
+
+            if (self.options.formId == formId && isTriggeredInput) {
+                self.evaluatePages();
+            }
+        });
+
+    };
+
+    self.evaluatePages = function () {
+
+        let page, isMatch, isVisible;
+
+        for ( let i = 0; i < self.options.pages.length; i++ ) {
+
+            page = self.options.pages[i];
+            isMatch = self.evaluatePage( page, self.options.formId );
+            isVisible = self.isPageVisible( page );
+
+            if ( ! isMatch && isVisible !== false ) {
+                self.hidePage( page );
+            } else if ( isMatch && !isVisible ) {
+                self.showPage( page );
+            }
+        }
+
+        /**
+         * Fires after the conditional logic on the form has been evaluated.
+         *
+         * @since 2.5
+         *
+         * @param array $pages     A collection of page field objects.
+         * @param int   $formId    The form id.
+         */
+        gform.doAction('gform_frontend_pages_evaluated', self.options.pages, self.options.formId, self);
+        gform.doAction('gform_frontend_pages_evaluated_{0}'.gformFormat(self.options.formId), self.options.pages, self.options.formId, self);
+        gform.utils.trigger( {
+            event: 'gform/frontend_pages/evaluated',
+            data: {
+                formId: self.options.formId,
+                pages: self.options.pages
+            },
+            native: false
+        } );
+
+    };
+
+    self.evaluatePage = function (page, formId) {
+
+        // Pages with no configured conditional logic always a match.
+        if (!page.conditionalLogic) {
+            return true;
+        }
+
+        return gf_get_field_action(formId, page.conditionalLogic) === 'show';
+    };
+
+    self.getTriggerInputIds = function () {
+        var inputIds = [];
+        for (var i = 0; i < self.options.pages.length; i++) {
+
+            var page = self.options.pages[i];
+
+            if (!page.conditionalLogic) {
+                continue;
+            }
+
+            for (var j = 0; j < page.conditionalLogic.rules.length; j++) {
+                var rule = self.options.pages[i].conditionalLogic.rules[j];
+                if ($.inArray(rule.fieldId, inputIds) === -1) {
+                    inputIds.push(rule.fieldId);
+                }
+            }
+
+        }
+        return inputIds;
+    };
+
+    self.isPageVisible = function (page) {
+
+        if (typeof page != 'object') {
+            page = self.getPage(page);
+            if (!page) {
+                return false;
+            }
+        }
+
+        return typeof page.isVisible != 'undefined' ? page.isVisible : null;
+    };
+
+    self.getPage = function (fieldId) {
+        for (var i = 0; i < self.options.pages.length; i++) {
+            var page = self.options.pages[i];
+            if (page.fieldId == fieldId) {
+                return page;
+            }
+        }
+        return false;
+    };
+
+    self.showPage = function ( page ) {
+
+        var isVisible = self.isPageVisible(page);
+
+        if (isVisible === true) {
+            return;
+        }
+
+        page.isVisible = true;
+        $('#gform_' + self.options.formId + ' div[data-js="page-field-id-' + page.fieldId + '"]').attr('data-conditional-logic', 'visible');
+        /**
+         * Fires after the conditional logic on the form has been evaluated and the page has been found to be visible.
+         *
+         * @since 2.5
+         *
+         * @param array $pages  A collection of page field objects.
+         * @param int   $formId The form id.
+         */
+        gform.doAction('gform_frontend_page_visible', page, self.options.formId);
+        gform.doAction('gform_frontend_page_visible_{0}'.gformFormat(self.options.formId), page, self.options.formId);
+
+    };
+
+    self.hidePage = function ( page ) {
+
+        var isVisible = self.isPageVisible( page );
+
+        if (isVisible === false) {
+            return;
+        }
+
+        page.isVisible = false;
+        $('#gform_' + self.options.formId + ' div[data-js="page-field-id-' + page.fieldId + '"]').attr('data-conditional-logic', 'hidden');
+
+        /**
+         * Fires after the conditional logic on the form has been evaluated and the page has become hidden.
+         *
+         * @since 2.5
+         *
+         * @param array $pages  A collection of page field objects.
+         * @param int   $formId The form id.
+         */
+        gform.doAction('gform_frontend_page_hidden', page, self.options.formId);
+        gform.doAction('gform_frontend_page_hidden_{0}'.gformFormat(self.options.formId), page, self.options.formId);
+
+    };
+
+    this.init();
+};