Refactor attach-link and attach-form

lib/proto/attach-form.js

@@ -1,9 +1,13 @@
 var on = require("../events/on")
 var clone = require("../util/clone")
 
-var attrClick = "data-pjax-click-state"
+var attrState = "data-pjax-state"
 
 var formAction = function(el, event) {
+  if (isDefaultPrevented(event)) {
+    return
+  }
+
   // Since loadUrl modifies options and we may add our own modifications below,
   // clone it so the changes don't persist
   var options = clone(this.options)
@@ -19,27 +23,9 @@ var formAction = function(el, event) {
   var virtLinkElement = document.createElement("a")
   virtLinkElement.setAttribute("href", options.requestOptions.requestUrl)
 
-  // Ignore external links.
-  if (virtLinkElement.protocol !== window.location.protocol || virtLinkElement.host !== window.location.host) {
-    el.setAttribute(attrClick, "external")
-    return
-  }
-
-  // Ignore click if we are on an anchor on the same page
-  if (virtLinkElement.pathname === window.location.pathname && virtLinkElement.hash.length > 0) {
-    el.setAttribute(attrClick, "anchor-present")
-    return
-  }
-
-  // Ignore empty anchor "foo.html#"
-  if (virtLinkElement.href === window.location.href.split("#")[0] + "#") {
-    el.setAttribute(attrClick, "anchor-empty")
-    return
-  }
-
-  // if declared as a full reload, just normally submit the form
-  if (options.currentUrlFullReload) {
-    el.setAttribute(attrClick, "reload")
+  var attrValue = checkIfShouldAbort(virtLinkElement, options)
+  if (attrValue) {
+    el.setAttribute(attrState, attrValue)
     return
   }
 
@@ -59,12 +45,34 @@ var formAction = function(el, event) {
     }
   }
 
-  el.setAttribute(attrClick, "submit")
+  el.setAttribute(attrState, "submit")
 
   options.triggerElement = el
   this.loadUrl(virtLinkElement.href, options)
 }
 
+function checkIfShouldAbort(virtLinkElement, options) {
+  // Ignore external links.
+  if (virtLinkElement.protocol !== window.location.protocol || virtLinkElement.host !== window.location.host) {
+    return "external"
+  }
+
+  // Ignore click if we are on an anchor on the same page
+  if (virtLinkElement.hash && virtLinkElement.href.replace(virtLinkElement.hash, "") === window.location.href.replace(location.hash, "")) {
+    return "anchor"
+  }
+
+  // Ignore empty anchor "foo.html#"
+  if (virtLinkElement.href === window.location.href.split("#")[0] + "#") {
+    return "anchor-empty"
+  }
+
+  // if declared as a full reload, just normally submit the form
+  if (options.currentUrlFullReload && virtLinkElement.href === window.location.href.split("#")[0]) {
+    return "reload"
+  }
+}
+
 var isDefaultPrevented = function(event) {
   return event.defaultPrevented || event.returnValue === false
 }
@@ -72,19 +80,13 @@ var isDefaultPrevented = function(event) {
 module.exports = function(el) {
   var that = this
 
-  on(el, "submit", function(event) {
-    if (isDefaultPrevented(event)) {
-      return
-    }
+  el.setAttribute(attrState, "")
 
+  on(el, "submit", function(event) {
     formAction.call(that, el, event)
   })
 
   on(el, "keyup", function(event) {
-    if (isDefaultPrevented(event)) {
-      return
-    }
-
     if (event.keyCode === 13) {
       formAction.call(that, el, event)
     }