Support passing of arguments to execute/evaluate_script

lib/capybara/poltergeist/browser.rb

@@ -120,12 +120,12 @@ module Capybara::Poltergeist
       command 'click_coordinates', x, y
     end
 
-    def evaluate(script)
-      command 'evaluate', script
+    def evaluate(script, *args)
+      command 'evaluate', script, *args
     end
 
-    def execute(script)
-      command 'execute', script
+    def execute(script, *args)
+      command 'execute', script, *args
     end
 
     def within_frame(handle, &block)

lib/capybara/poltergeist/client/browser.coffee

@@ -199,11 +199,15 @@ class Poltergeist.Browser
   path: (page_id, id) ->
     @current_command.sendResponse this.node(page_id, id).path()
 
-  evaluate: (script) ->
-    @current_command.sendResponse @currentPage.evaluate("function() { return #{script} }")
+  evaluate: (script, args...) ->
+    for arg in args when @_isElementArgument(arg)
+      throw new Poltergeist.ObsoleteNode if arg["ELEMENT"]["page_id"] != @currentPage.id
+    @current_command.sendResponse @currentPage.evaluate("function() { return #{script} }", args...)
 
-  execute: (script) ->
-    @currentPage.execute("function() { #{script} }")
+  execute: (script, args...) ->
+    for arg in args when @_isElementArgument(arg)
+      throw new Poltergeist.ObsoleteNode if arg["ELEMENT"]["page_id"] != @currentPage.id
+    @currentPage.execute("function() { #{script} }", args...)
     @current_command.sendResponse(true)
 
   frameUrl: (frame_name) ->
@@ -535,3 +539,5 @@ class Poltergeist.Browser
     wildcard = wildcard.replace(/\?/g, ".")
     new RegExp(wildcard, "i")
 
+  _isElementArgument: (arg)->
+    typeof(arg) == "object" and typeof(arg['ELEMENT']) == "object"

lib/capybara/poltergeist/client/compiled/browser.js

@@ -1,5 +1,5 @@
-var indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; },
-  slice = [].slice;
+var slice = [].slice,
+  indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; };
 
 Poltergeist.Browser = (function() {
   function Browser(width, height) {
@@ -249,12 +249,32 @@ Poltergeist.Browser = (function() {
     return this.current_command.sendResponse(this.node(page_id, id).path());
   };
 
-  Browser.prototype.evaluate = function(script) {
-    return this.current_command.sendResponse(this.currentPage.evaluate("function() { return " + script + " }"));
+  Browser.prototype.evaluate = function() {
+    var arg, args, i, len, ref, script;
+    script = arguments[0], args = 2 <= arguments.length ? slice.call(arguments, 1) : [];
+    for (i = 0, len = args.length; i < len; i++) {
+      arg = args[i];
+      if (this._isElementArgument(arg)) {
+        if (arg["ELEMENT"]["page_id"] !== this.currentPage.id) {
+          throw new Poltergeist.ObsoleteNode;
+        }
+      }
+    }
+    return this.current_command.sendResponse((ref = this.currentPage).evaluate.apply(ref, ["function() { return " + script + " }"].concat(slice.call(args))));
   };
 
-  Browser.prototype.execute = function(script) {
-    this.currentPage.execute("function() { " + script + " }");
+  Browser.prototype.execute = function() {
+    var arg, args, i, len, ref, script;
+    script = arguments[0], args = 2 <= arguments.length ? slice.call(arguments, 1) : [];
+    for (i = 0, len = args.length; i < len; i++) {
+      arg = args[i];
+      if (this._isElementArgument(arg)) {
+        if (arg["ELEMENT"]["page_id"] !== this.currentPage.id) {
+          throw new Poltergeist.ObsoleteNode;
+        }
+      }
+    }
+    (ref = this.currentPage).execute.apply(ref, ["function() { " + script + " }"].concat(slice.call(args)));
     return this.current_command.sendResponse(true);
   };
 
@@ -477,9 +497,9 @@ Poltergeist.Browser = (function() {
     return this.current_command.sendResponse(true);
   };
 
-  Browser.prototype.render_base64 = function(format, arg) {
+  Browser.prototype.render_base64 = function(format, arg1) {
     var dimensions, encoded_image, full, ref, ref1, ref2, ref3, selector, window_scroll_position;
-    ref = arg != null ? arg : {}, full = (ref1 = ref.full) != null ? ref1 : false, selector = (ref2 = ref.selector) != null ? ref2 : null;
+    ref = arg1 != null ? arg1 : {}, full = (ref1 = ref.full) != null ? ref1 : false, selector = (ref2 = ref.selector) != null ? ref2 : null;
     window_scroll_position = this.currentPage["native"]().evaluate("function(){ return [window.pageXOffset, window.pageYOffset] }");
     dimensions = this.set_clip_rect(full, selector);
     encoded_image = this.currentPage.renderBase64(format);
@@ -491,9 +511,9 @@ Poltergeist.Browser = (function() {
     return this.current_command.sendResponse(encoded_image);
   };
 
-  Browser.prototype.render = function(path, arg) {
+  Browser.prototype.render = function(path, arg1) {
     var dimensions, format, full, options, quality, ref, ref1, ref2, ref3, ref4, ref5, selector, window_scroll_position;
-    ref = arg != null ? arg : {}, full = (ref1 = ref.full) != null ? ref1 : false, selector = (ref2 = ref.selector) != null ? ref2 : null, format = (ref3 = ref.format) != null ? ref3 : null, quality = (ref4 = ref.quality) != null ? ref4 : null;
+    ref = arg1 != null ? arg1 : {}, full = (ref1 = ref.full) != null ? ref1 : false, selector = (ref2 = ref.selector) != null ? ref2 : null, format = (ref3 = ref.format) != null ? ref3 : null, quality = (ref4 = ref.quality) != null ? ref4 : null;
     window_scroll_position = this.currentPage["native"]().evaluate("function(){ return [window.pageXOffset, window.pageYOffset] }");
     dimensions = this.set_clip_rect(full, selector);
     options = {};
@@ -733,6 +753,10 @@ Poltergeist.Browser = (function() {
     return new RegExp(wildcard, "i");
   };
 
+  Browser.prototype._isElementArgument = function(arg) {
+    return typeof arg === "object" && typeof arg['ELEMENT'] === "object";
+  };
+
   return Browser;
 
 })();

lib/capybara/poltergeist/client/compiled/web_page.js

@@ -505,13 +505,13 @@ Poltergeist.WebPage = (function() {
     var args, fn, ref2;
     fn = arguments[0], args = 2 <= arguments.length ? slice.call(arguments, 1) : [];
     this.injectAgent();
-    return (ref2 = this["native"]()).evaluate.apply(ref2, ["function() { var _result = " + (this.stringifyCall(fn)) + "; return (_result == null) ? undefined : _result; }"].concat(slice.call(args)));
+    return (ref2 = this["native"]()).evaluate.apply(ref2, ["function() { for(var i=0; i < arguments.length; i++){ if ((typeof(arguments[i]) == 'object') && (typeof(arguments[i]['ELEMENT']) == 'object')){ arguments[i] = window.__poltergeist.get(arguments[i]['ELEMENT']['id']).element; } } var _result = " + (this.stringifyCall(fn)) + "; return (_result == null) ? undefined : _result; }"].concat(slice.call(args)));
   };
 
   WebPage.prototype.execute = function() {
     var args, fn, ref2;
     fn = arguments[0], args = 2 <= arguments.length ? slice.call(arguments, 1) : [];
-    return (ref2 = this["native"]()).evaluate.apply(ref2, ["function() { " + (this.stringifyCall(fn)) + " }"].concat(slice.call(args)));
+    return (ref2 = this["native"]()).evaluate.apply(ref2, ["function() { for(var i=0; i < arguments.length; i++){ if ((typeof(arguments[i]) == 'object') && (typeof(arguments[i]['ELEMENT']) == 'object')){ arguments[i] = window.__poltergeist.get(arguments[i]['ELEMENT']['id']).element; } } " + (this.stringifyCall(fn)) + " }"].concat(slice.call(args)));
   };
 
   WebPage.prototype.stringifyCall = function(fn) {

lib/capybara/poltergeist/client/web_page.coffee

@@ -345,11 +345,23 @@ class Poltergeist.WebPage
 
   evaluate: (fn, args...) ->
     this.injectAgent()
-    this.native().evaluate("function() { var _result = #{this.stringifyCall(fn)};
+    this.native().evaluate("function() {
+      for(var i=0; i < arguments.length; i++){
+        if ((typeof(arguments[i]) == 'object') && (typeof(arguments[i]['ELEMENT']) == 'object')){
+          arguments[i] = window.__poltergeist.get(arguments[i]['ELEMENT']['id']).element;
+        }
+      }
+      var _result = #{this.stringifyCall(fn)};
       return (_result == null) ? undefined : _result; }", args...)
 
   execute: (fn, args...) ->
-    this.native().evaluate("function() { #{this.stringifyCall(fn)} }", args...)
+    this.native().evaluate("function() {
+      for(var i=0; i < arguments.length; i++){
+        if ((typeof(arguments[i]) == 'object') && (typeof(arguments[i]['ELEMENT']) == 'object')){
+          arguments[i] = window.__poltergeist.get(arguments[i]['ELEMENT']['id']).element;
+        }
+      }
+      #{this.stringifyCall(fn)} }", args...)
 
   stringifyCall: (fn) ->
     "(#{fn.toString()}).apply(this, arguments)"

lib/capybara/poltergeist/driver.rb

@@ -134,12 +134,12 @@ module Capybara::Poltergeist
       browser.click_coordinates(x, y)
     end
 
-    def evaluate_script(script)
-      browser.evaluate(script)
+    def evaluate_script(script, *args)
+      browser.evaluate(script, *args)
     end
 
-    def execute_script(script)
-      browser.execute(script)
+    def execute_script(script, *args)
+      browser.execute(script, *args)
       nil
     end
 

lib/capybara/poltergeist/node.rb

@@ -168,6 +168,16 @@ module Capybara::Poltergeist
       command :path
     end
 
+    # @api private
+    def to_json(*)
+      JSON.generate as_json
+    end
+
+    # @api private
+    def as_json(*)
+      { ELEMENT: {page_id: @page_id, id: @id} }
+    end
+
     private
 
     def filter_text(text)

poltergeist.gemspec

@@ -32,7 +32,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'pdf-reader',         '~> 1.3', '>= 1.3.3'
   s.add_development_dependency 'coffee-script',      '~> 2.2'
   s.add_development_dependency 'guard-coffeescript', '~> 2.0.0'
-  s.add_development_dependency 'coffee-script-source', '~>1.11.1'
+  s.add_development_dependency 'coffee-script-source', '~>1.12.2'
   s.add_development_dependency 'listen', '~> 3.0.6'  # listen is required by guard and listen 3.1.0 requires ruby 2.2+
   s.add_development_dependency 'erubis'  # required by rbx
 end