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# File 'lib/heatmap/rails/helper.rb', line 10
def save_heatmap(options = {})
click = options[:click] || Heatmap::Rails.options[:click]
move = options[:move] || Heatmap::Rails.options[:move]
scroll = options[:scroll] || Heatmap::Rails.options[:scroll]
html_element = options[:html_element] || Heatmap::Rails.options[:html_element]
html = ""
js = "<script type=\"text/javascript\">\n$( document ).ready(function() {\n var move_array = [];\n var scroll_array = [];\n\n (function() {\ndocument.onwheel = handleWheelMove;\nfunction handleWheelMove(event) {\n var dot, eventDoc, doc, body, offsetX, offsetY;\n event = event || window.event;\n if (event.offsetX == null && event.clientX != null) {\n eventDoc = (event.target && event.target.ownerDocument) || document;\n doc = eventDoc.documentElement;\n body = eventDoc.body;\n event.offsetX = event.clientX +\n (doc && doc.scrollLeft || body && body.scrollLeft || 0) -\n (doc && doc.clientLeft || body && body.clientLeft || 0);\n event.offsetY = event.clientY +\n (doc && doc.scrollTop || body && body.scrollTop || 0) -\n (doc && doc.clientTop || body && body.clientTop || 0 );\n }\n var xpath_element = xpathstring(event);\n var element_width = event.target.getBoundingClientRect().width;\n var element_height= event.target.getBoundingClientRect().height;\n offset_x_element = event.offsetX / element_width;\n offset_y_element = event.offsetY / element_height;\n var pageCoords = { path: \"\#{exact_route}\", type: 'scroll', xpath: xpath_element, offset_x: offset_x_element , offset_y: offset_y_element, };\n\n scroll_array.push(pageCoords);\n if (scroll_array.length >= parseInt(\#{scroll})) {\n var coordinates = scroll_array;\n sendRequest({'scroll_data': coordinates, 'total_scrolls': \#{scroll} });\n scroll_array = [];\n }\n}\n })();\n\n document.querySelector('\#{html_element}').onmousemove = function(ev) {\nvar xpath_element = xpathstring(ev);\nvar element_width = ev.target.getBoundingClientRect().width;\nvar element_height= ev.target.getBoundingClientRect().height;\noffset_x_element = ev.offsetX / element_width;\noffset_y_element = ev.offsetY / element_height;\nvar pageCoords = { path: \"\#{exact_route}\", type: 'move', xpath: xpath_element, offset_x: offset_x_element , offset_y: offset_y_element, };\n\nvar obj = move_array.find(function (obj) { return obj.xpath === xpath_element; });\nif (obj == null){\n move_array.push(pageCoords);\n}\nif (move_array.length >= parseInt(\#{move}))\n{\n var coordinates = move_array;\n sendRequest({'move_data': coordinates,'total_moves': \#{move} });\n move_array = [];\n}\n\n\n };\n var click_array = [];\n document.querySelector('\#{html_element}').onclick = function(ev) {\n\nvar xpath_element= xpathstring(ev);\nvar element_width = ev.target.getBoundingClientRect().width;\nvar element_height= ev.target.getBoundingClientRect().height;\noffset_x_element = ev.offsetX / element_width;\noffset_y_element = ev.offsetY / element_height;\nvar pageCoords = { path: \"\#{exact_route}\", type: 'click', xpath: xpath_element, offset_x: offset_x_element , offset_y: offset_y_element, };\nclick_array.push(pageCoords);\nif (click_array.length >= parseInt(\#{click}))\n{\n var coordinates = click_array;\n sendRequest({'click_data': coordinates, 'total_clicks': \#{click} });\n click_array = [];\n\n}\n };\n function sendRequest(coordinates_data){\n$.ajax({\n method: \"POST\",\n url: '/points',\n data: coordinates_data,\n dataType: 'application/json'\n});\n }\n});\n\nfunction xpathstring(event) {\n var e = event.srcElement || event.originalTarget,\n path = xpath(e, '');\n return path\n}\nfunction xpath(element, suffix) {\n var parent, child_index, node_name;\n parent = element.parentElement;\n if (parent) {\n node_name = element.nodeName.toLowerCase();\n child_index = nodeindex(element, parent.children) + 1;\n return xpath(parent, '/' + node_name + '[' + child_index + ']' + suffix);\n } else {\n return '//html[1]' + suffix;\n }\n}\nfunction nodeindex(element, array) {\n var i,\n found = -1,\n element_name = element.nodeName.toLowerCase(),\n matched\n ;\n\n for (i = 0; i != array.length; ++i) {\n matched = array[i];\n if (matched.nodeName.toLowerCase() === element_name) {\n ++found;\n\n\n if (matched === element) {\n return found;\n }\n }\n }\n\n return -1;\n}\nfunction getOffset( path ) {\nel = document.evaluate(path, document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;\nvar _x = 0;\nvar _y = 0;\nwhile( el && !isNaN( el.offsetLeft ) && !isNaN( el.offsetTop ) ) {\n _x += el.offsetLeft - el.scrollLeft;\n _y += el.offsetTop - el.scrollTop;\n el = el.offsetParent;\n}\nreturn { y: _y, x: _x };\n}\n </script>\n"
html += js
html.respond_to?(:html_safe) ? html.html_safe : html
end
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