Bug 732063 - Move the SelectHelper code into a separate file [r=margaret]

mobile/android/chrome/content/SelectHelper.js

@@ -0,0 +1,123 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+"use strict";
+
+var SelectHelper = {
+  _uiBusy: false,
+
+  handleClick: function(aTarget) {
+    // if we're busy looking at a select we want to eat any clicks that
+    // come to us, but not to process them
+    if (this._uiBusy)
+        return true;
+
+    let target = aTarget;
+    while (target) {
+      if (this._isSelectElement(target) && !target.disabled) {
+        this._uiBusy = true;
+        target.focus();
+        let list = this.getListForElement(target);
+        this.show(list, target);
+        target = null;
+        this._uiBusy = false;
+        return true;
+      }
+      if (target)
+        target = target.parentNode;
+    }
+    return false;
+  },
+
+  show: function(aList, aElement) {
+    let data = JSON.parse(sendMessageToJava({ gecko: aList }));
+    let selected = data.button;
+    if (selected == -1)
+        return;
+
+    if (!(selected instanceof Array)) {
+      let temp = [];
+      for (let i = 0; i < aList.listitems.length; i++) {
+        temp[i] = (i == selected);
+      }
+      selected = temp;
+    }
+    this.forOptions(aElement, function(aNode, aIndex) {
+      aNode.selected = selected[aIndex];
+    });
+    this.fireOnChange(aElement);
+  },
+
+  _isSelectElement: function(aElement) {
+    return (aElement instanceof HTMLSelectElement);
+  },
+
+  getListForElement: function(aElement) {
+    let result = {
+      type: "Prompt:Show",
+      multiple: aElement.multiple,
+      selected: [],
+      listitems: []
+    };
+
+    if (aElement.multiple) {
+      result.buttons = [
+        { label: Strings.browser.GetStringFromName("selectHelper.closeMultipleSelectDialog") },
+      ];
+    }
+
+    this.forOptions(aElement, function(aNode, aIndex, aIsGroup, aInGroup) {
+      let item = {
+        label: aNode.text || aNode.label,
+        isGroup: aIsGroup,
+        inGroup: aInGroup,
+        disabled: aNode.disabled,
+        id: aIndex
+      }
+      if (aInGroup)
+        item.disabled = item.disabled || aNode.parentNode.disabled;
+
+      result.listitems[aIndex] = item;
+      result.selected[aIndex] = aNode.selected;
+    });
+    return result;
+  },
+
+  forOptions: function(aElement, aFunction) {
+    let optionIndex = 0;
+    let children = aElement.children;
+    let numChildren = children.length;
+    // if there are no children in this select, we add a dummy row so that at least something appears
+    if (numChildren == 0)
+      aFunction.call(this, {label:""}, optionIndex);
+    for (let i = 0; i < numChildren; i++) {
+      let child = children[i];
+      if (child instanceof HTMLOptionElement) {
+        // This is a regular choice under no group.
+        aFunction.call(this, child, optionIndex, false, false);
+        optionIndex++;
+      } else if (child instanceof HTMLOptGroupElement) {
+        aFunction.call(this, child, optionIndex, true, false);
+        optionIndex++;
+
+        let subchildren = child.children;
+        let numSubchildren = subchildren.length;
+        for (let j = 0; j < numSubchildren; j++) {
+          let subchild = subchildren[j];
+          aFunction.call(this, subchild, optionIndex, false, true);
+          optionIndex++;
+        }
+      }
+    }
+  },
+
+  fireOnChange: function(aElement) {
+    let evt = aElement.ownerDocument.createEvent("Events");
+    evt.initEvent("change", true, true, aElement.defaultView, 0,
+                  false, false,
+                  false, false, null);
+    setTimeout(function() {
+      aElement.dispatchEvent(evt);
+    }, 0);
+  }
+};

mobile/android/chrome/content/browser.js

@@ -51,6 +51,18 @@ XPCOMUtils.defineLazyGetter(this, "PluralForm", function() {
   return PluralForm;
 });
 
+// Lazily-loaded browser scripts:
+[
+  ["SelectHelper", "chrome://browser/content/SelectHelper.js"],
+].forEach(function (aScript) {
+  let [name, script] = aScript;
+  XPCOMUtils.defineLazyGetter(window, name, function() {
+    let sandbox = {};
+    Services.scriptloader.loadSubScript(script, sandbox);
+    return sandbox[name];
+  });
+});
+
 XPCOMUtils.defineLazyServiceGetter(this, "Haptic",
   "@mozilla.org/widget/hapticfeedback;1", "nsIHapticFeedback");
 
@@ -2266,7 +2278,7 @@ var BrowserEventHandler = {
       }
     } else if (aTopic == "Gesture:SingleTap") {
       let element = this._highlightElement;
-      if (element && !FormAssistant.handleClick(element)) {
+      if (element && !SelectHelper.handleClick(element)) {
         try {
           let data = JSON.parse(aData);
           [data.x, data.y] = ElementTouchHelper.toScreenCoords(element.ownerDocument.defaultView, data.x, data.y);
@@ -2795,7 +2807,6 @@ var FormAssistant = {
   // Used to keep track of the element that corresponds to the current
   // autocomplete suggestions
   _currentInputElement: null,
-  _uiBusy: false,
 
   init: function() {
     Services.obs.addObserver(this, "FormAssist:AutoComplete", false);
@@ -2881,124 +2892,9 @@ var FormAssistant = {
     }
 
     return suggestions;
-  },
-
-  show: function(aList, aElement) {
-    let data = JSON.parse(sendMessageToJava({ gecko: aList }));
-    let selected = data.button;
-    if (selected == -1)
-        return;
-
-    if (!(selected instanceof Array)) {
-      let temp = [];
-      for (let i = 0; i < aList.listitems.length; i++) {
-        temp[i] = (i == selected);
   }
-      selected = temp;
-    }
-    this.forOptions(aElement, function(aNode, aIndex) {
-      aNode.selected = selected[aIndex];
-    });
-    this.fireOnChange(aElement);
-  },
-
-  handleClick: function(aTarget) {
-    // if we're busy looking at a select we want to eat any clicks that
-    // come to us, but not to process them
-    if (this._uiBusy)
-        return true;
-
-    let target = aTarget;
-    while (target) {
-      if (this._isSelectElement(target) && !target.disabled) {
-        this._uiBusy = true;
-        target.focus();
-        let list = this.getListForElement(target);
-        this.show(list, target);
-        target = null;
-        this._uiBusy = false;
-        return true;
-      }
-      if (target)
-        target = target.parentNode;
-    }
-    return false;
-  },
-
-  fireOnChange: function(aElement) {
-    let evt = aElement.ownerDocument.createEvent("Events");
-    evt.initEvent("change", true, true, aElement.defaultView, 0,
-                  false, false,
-                  false, false, null);
-    setTimeout(function() {
-      aElement.dispatchEvent(evt);
-    }, 0);
-  },
-
-  _isSelectElement: function(aElement) {
-    return (aElement instanceof HTMLSelectElement);
-  },
-
-  getListForElement: function(aElement) {
-    let result = {
-      type: "Prompt:Show",
-      multiple: aElement.multiple,
-      selected: [],
-      listitems: []
 };
 
-    if (aElement.multiple) {
-      result.buttons = [
-        { label: Strings.browser.GetStringFromName("selectHelper.closeMultipleSelectDialog") },
-      ];
-    }
-
-    this.forOptions(aElement, function(aNode, aIndex, aIsGroup, aInGroup) {
-      let item = {
-        label: aNode.text || aNode.label,
-        isGroup: aIsGroup,
-        inGroup: aInGroup,
-        disabled: aNode.disabled,
-        id: aIndex
-      }
-      if (aInGroup)
-        item.disabled = item.disabled || aNode.parentNode.disabled;
-
-      result.listitems[aIndex] = item;
-      result.selected[aIndex] = aNode.selected;
-    });
-    return result;
-  },
-
-  forOptions: function(aElement, aFunction) {
-    let optionIndex = 0;
-    let children = aElement.children;
-    let numChildren = children.length;
-    // if there are no children in this select, we add a dummy row so that at least something appears
-    if (numChildren == 0)
-      aFunction.call(this, {label:""}, optionIndex);
-    for (let i = 0; i < numChildren; i++) {
-      let child = children[i];
-      if (child instanceof HTMLOptionElement) {
-        // This is a regular choice under no group.
-        aFunction.call(this, child, optionIndex, false, false);
-        optionIndex++;
-      } else if (child instanceof HTMLOptGroupElement) {
-        aFunction.call(this, child, optionIndex, true, false);
-        optionIndex++;
-
-        let subchildren = child.children;
-        let numSubchildren = subchildren.length;
-        for (let j = 0; j < numSubchildren; j++) {
-          let subchild = subchildren[j];
-          aFunction.call(this, subchild, optionIndex, false, true);
-          optionIndex++;
-        }
-      }
-    }
-  }
-}
-
 var XPInstallObserver = {
   init: function xpi_init() {
     Services.obs.addObserver(XPInstallObserver, "addon-install-blocked", false);
@@ -3782,7 +3678,7 @@ var ClipboardHelper = {
       return false;
     }
   }
-}
+};
 
 var PluginHelper = {
   showDoorHanger: function(aTab) {

mobile/android/chrome/jar.mn

@@ -24,6 +24,7 @@ chrome.jar:
   content/exceptions.js                (content/exceptions.js)
 * content/downloads.js                 (content/downloads.js)
   content/netError.xhtml               (content/netError.xhtml)
+  content/SelectHelper.js              (content/SelectHelper.js)
   
 % override chrome://global/content/config.xul chrome://browser/content/config.xhtml
 % override chrome://global/content/netError.xhtml chrome://browser/content/netError.xhtml