add skeleton to tagui_header.js for #24

looks like there isn't a direct way to use xpath for chrome debugging protocol.

next steps
- verify how to access by xpath
- add websocket helper code

src/tagui_header.js

@@ -98,6 +98,58 @@ var sikuli_result = ''; do {sikuli_result = fs.read('tagui.sikuli'+ds+'tagui_sik
 while (sikuli_result.indexOf('['+sikuli_count.toString()+'] ') == -1);
 if (sikuli_result.indexOf('SUCCESS') !== -1) return true; else return false;}
 
+// chrome object for handling integration with chrome or headless chrome
+var chrome = new Object(); chrome.mouse = new Object();
+
+// chrome methods as casper methods replacement for chrome integration
+chrome.click = function(selector) {
+};
+
+chrome.mouse.move = function(selector) {
+};
+
+chrome.sendKeys = function(selector,value) {
+};
+
+chrome.selectOptionByValue = function(selector,value) {
+};
+
+chrome.fetchText = function(selector) {
+return '';
+};
+
+chrome.capture = function(filename) {
+};
+
+chrome.captureSelector = function(filename,selector) {
+};
+
+chrome.download = function(url,filename) {
+};
+
+chrome.evaluate = function(statement) {
+};
+
+chrome.getHTML = function() {
+return '';
+};
+
+chrome.getTitle = function() {
+return '';
+};
+
+chrome.getCurrentUrl = function() {
+return '';
+};
+
+chrome.exists = function(selector) {
+return false;
+};
+
+chrome.echo = function(value) {casper.echo(value);};
+
+chrome.on = function(value,statement) {casper.on(value,statement);};
+
 // for live mode simple parsing of tagui steps into js code
 function tagui_parse(raw_input) {return parse_intent(raw_input);}
 
@@ -194,6 +246,7 @@ if ((raw_intent.substr(0,4) == 'for ') || (raw_intent.substr(0,6) == 'while '))
 if ((raw_intent.substr(0,7) == 'switch ') || (raw_intent.substr(0,5) == 'case ')) return true;
 if ((raw_intent.substr(0,6) == 'break;') || (raw_intent.substr(0,9) == 'function ')) return true;
 if ((raw_intent.substr(0,7) == 'casper.') || (raw_intent.substr(0,5) == 'this.')) return true;
+if (raw_intent.substr(0,7) == 'chrome.') return true; // chrome object for chrome integration
 if (raw_intent.substr(0,5) == 'test.') return true;
 if ((raw_intent.substr(0,2) == '//') || (raw_intent.charAt(raw_intent.length-1) == ';')) return true; return false;}
 
@@ -211,7 +264,7 @@ return "'ERROR - inconsistent quotes in text'";
 else if (source_string.indexOf("'") > -1) var quote_type = "'"; // derive quote type used
 else if (source_string.indexOf('"') > -1) var quote_type = '"'; else var quote_type = "none";
 var within_quote = false; source_string = source_string.trim(); // trim for future proof
-for (srcpos = 0; srcpos < source_string.length; srcpos++){
+for (srcpos = 0; srcpos < source_string.length; srcpos++) {
 if (source_string.charAt(srcpos) == quote_type) within_quote = !(within_quote);
 if ((within_quote == false) && (source_string.charAt(srcpos)==" "))
 source_string = source_string.substring(0,srcpos) + "+" + source_string.substring(srcpos+1);}
@@ -393,11 +446,11 @@ xhttp.setRequestHeader(header_value_pair[0].trim(),header_value_pair[1].trim());
 xhttp.send(JSON.stringify(api_config.body)); return xhttp.responseText;}
 
 // custom function to handle dropdown option
-casper.selectOptionByValue = function(selector, valueToMatch){ // solution posted in casperjs issue #1390
+casper.selectOptionByValue = function(selector, valueToMatch) { // solution posted in casperjs issue #1390
 this.evaluate(function(selector, valueToMatch) {var found = false; // modified to allow xpath / css locators
 if ((selector.indexOf('/') == 0) || (selector.indexOf('(') == 0)) var select = __utils__.getElementByXPath(selector);
 else var select = document.querySelector(selector); // auto-select xpath or query css method to get element
-Array.prototype.forEach.call(select.children, function(opt, i){ // loop through list to select option
+Array.prototype.forEach.call(select.children, function(opt, i) { // loop through list to select option
 if (!found && opt.value.indexOf(valueToMatch) !== -1) {select.selectedIndex = i; found = true;}});
 var evt = document.createEvent("UIEvents"); // dispatch change event in case there is validation
 evt.initUIEvent("change", true, true); select.dispatchEvent(evt);}, selector, valueToMatch);};

src/tagui_parse.php

@@ -51,6 +51,11 @@
 while(!feof($footer_file)) {fwrite($output_file,fgets($footer_file));} fclose($footer_file); fclose($output_file);
 chmod ($script . '.js',0600); if (!$url_provided) echo "ERROR - first line of " . $script . " not URL\n";
 
+// special handling if chrome or headless chrome is used as browser for automation
+if ($tagui_web_browser == 'chrome') {$script_content = file_get_contents($script . '.js'); // read generated script
+$script_content = str_replace("casper.exists","chrome.exists",$script_content); // change locator check to chrome
+file_put_contents($script . '.js',$script_content);}
+
 // check quiet parameter to run flow quietly by only showing explicit output
 if (getenv('tagui_quiet_mode') == 'true') {$script_content = file_get_contents($script . '.js'); // read generated script
 $script_content = str_replace("var quiet_mode = false;","var quiet_mode = true;",$script_content); // set quiet_mode
@@ -70,7 +75,7 @@
 // following help to define the script structure required by casperjs for test automation purpose
 $script_content = str_replace("casper.start(","casper.test.begin('" . str_replace("\\","\\\\",$script) . "', " . 
 $test_automation.", function(test) {\ncasper.start(",$script_content); // define required casperjs test structure
-$script_content = str_replace("casper.run();","casper.run(function(){test.done();});});",$script_content);
+$script_content = str_replace("casper.run();","casper.run(function() {test.done();});});",$script_content);
 file_put_contents($script . '.js',$script_content);} // save script after restructuring for testing
 
 // otherwise prep for normal execution by commenting out test assertions as they will kill the script
@@ -185,6 +190,7 @@ function is_code($raw_intent) {
 if ((substr($raw_intent,0,7)=="switch ") or (substr($raw_intent,0,5)=="case ")) return true;
 if ((substr($raw_intent,0,6)=="break;") or (substr($raw_intent,0,9)=="function ")) return true;
 if ((substr($raw_intent,0,7)=="casper.") or (substr($raw_intent,0,5)=="this.")) return true;
+if (substr($raw_intent,0,7)=="chrome.") return true; // chrome object for chrome integration
 if (substr($raw_intent,0,5)=="test.") {$GLOBALS['test_automation']++; return true;}
 if ((substr($raw_intent,0,2)=="//") or (substr($raw_intent,-1)==";")) return true; return false;}
 
@@ -221,7 +227,7 @@ function add_concat($source_string) { // parse string and add missing + concaten
 else if (strpos($source_string,"'")!==false) $quote_type = "'"; // derive quote type used
 else if (strpos($source_string,"\"")!==false) $quote_type = "\""; else $quote_type = "none";
 $within_quote = false; $source_string = trim($source_string); // trim for future proof
-for ($srcpos=0; $srcpos<strlen($source_string); $srcpos++){
+for ($srcpos=0; $srcpos<strlen($source_string); $srcpos++) {
 if ($source_string[$srcpos] == $quote_type) $within_quote = !$within_quote; 
 if (($within_quote == false) and ($source_string[$srcpos]==" ")) $source_string[$srcpos] = "+";}
 $source_string = str_replace("+++++","+",$source_string); $source_string = str_replace("++++","+",$source_string);
@@ -441,7 +447,7 @@ function parse_condition($logic) { // natural language handling for conditions
 $GLOBALS['inside_code_block'] += substr_count($logic,"{"); $GLOBALS['inside_code_block'] -= substr_count($logic,"}");
 if ($GLOBALS['inside_while_loop']==0) { // while loop check as casper.then will hang while loop
 $logic = str_replace("{","\n// start of code block\n{casper.then(function() {",$logic);
-$logic = str_replace("}","})}; // end of code block\n",$logic);}
+$logic = str_replace("}","})} // end of code block\n",$logic);}
 
 // section 2 - natural language handling for conditions and loops 
 if ((substr($logic,0,3)=="if ") or (substr($logic,0,8)=="else if ")
@@ -478,7 +484,7 @@ function parse_condition($logic) { // natural language handling for conditions
 if ($pos_double_quote < $pos_single_quote) {$pos_quote_start = $pos_double_quote; $quote_type = "\"";}
 else if ($pos_single_quote < $pos_double_quote) {$pos_quote_start = $pos_single_quote; $quote_type = "'";}
 else {echo "ERROR - " . current_line() . " no quoted text - " . $logic . "\n"; $quote_type = "missing";}
-if ($quote_type != "missing"){$pos_quote_end = strpos($logic,$quote_type,$pos_quote_start+1);
+if ($quote_type != "missing") {$pos_quote_end = strpos($logic,$quote_type,$pos_quote_start+1);
 $pos_variable_start = strrpos($logic," ",$pos_keyword-strlen($logic)-2); $contain_operator = "<0";
 if (($contain_type == " contains ") or ($contain_type == " contain ")) $contain_operator = ">-1"; 
 $logic = substr($logic,0,$pos_variable_start+1)."(".