/* ************************************************************************

   qooxdoo - the new era of web development

   http://qooxdoo.org

   Copyright:
     2004-2009 1&1 Internet AG, Germany, http://www.1und1.de

   License:
     LGPL: http://www.gnu.org/licenses/lgpl.html
     EPL: http://www.eclipse.org/org/documents/epl-v10.php
     See the LICENSE file in the project's top-level directory for details.

   Authors:
     * Martin Wittemann (martinwittemann)

************************************************************************ */
qx.Class.define("qx.test.ui.form.Placeholder",
{
  extend : qx.test.ui.LayoutTestCase,

  members :
  {

    __testInit : function(clazz, childControlName) {
      var widget = new clazz();
      widget.setValue("affe");
      widget.setPlaceholder("aaa");
      this.getRoot().add(widget);
      this.flush();

      this.assertEquals("affe", this.__getVisibleValueOf(widget), "placeholder visible");
      this.assertEquals("affe", widget.getValue(), "Wrong value returned.");
      this.assertFalse(this.__isPlaceholderVisible(widget));
      widget.destroy();

      widget = new clazz();
      widget.setPlaceholder("abc");
      this.getRoot().add(widget);

      // sync the appearance
      this.__syncAppearance(widget);

      this.assertTrue(this.__isPlaceholderVisible(widget));
      this.assertEquals("abc", this.__getPlaceholderValueOf(widget), "placeholder not visible");
      this.assertNull(widget.getValue(), "Wrong value returned.");

      // get rid of the widget
      widget.destroy();
    },


    __testChangeValue: function(clazz) {
      var widget = new clazz();
      widget.setPlaceholder("abc");
      this.getRoot().add(widget);

      // set a value
      widget.setValue("def");
      this.assertEquals("def", widget.getValue(), "wrong value");
      this.assertEquals("def", this.__getVisibleValueOf(widget), "wrong visible value");
      this.assertFalse(this.__isPlaceholderVisible(widget));

      // remove the value
      widget.resetValue();

      // sync the appearance
      this.__syncAppearance(widget);

      this.assertNull(widget.getValue(), "wrong value");
      this.assertTrue(this.__isPlaceholderVisible(widget));
      this.assertEquals("abc", this.__getPlaceholderValueOf(widget), "wrong visible value");

      // get rid of the widget
      widget.destroy();
    },


    __testFocus: function(clazz) {
      var widget = new clazz();
      widget.setPlaceholder("abc");
      this.getRoot().add(widget);

      // test focus in
      widget.focus();
      this.flush();
      this.assertEquals("", this.__getVisibleValueOf(widget), "wrong visible value after focus");
      this.assertFalse(this.__isPlaceholderVisible(widget));

      // test focus out
      this.getRoot().focus();
      this.flush();

      var timer = qx.util.TimerManager.getInstance();
      timer.start(function() {
        this.resume(function() {
          this.getRoot().focus();
          this.flush();
          this.assertTrue(this.__isPlaceholderVisible(widget));
          this.assertEquals("abc", this.__getPlaceholderValueOf(widget), "wrong visible value after blur");
          // get rid of the widget
          widget.destroy();
        }, this);
      }, 0, this, null, 300);

      this.wait();
    },


    __testRemovePlaceholder: function(clazz) {
      var widget = new clazz();
      widget.setPlaceholder("abc");
      widget.setPlaceholder(null);
      this.assertFalse(this.__isPlaceholderVisible(widget));
      this.assertNull(widget.getValue(), "wrong value");
      this.assertEquals("", this.__getVisibleValueOf(widget), "wrong visible value after focus");
      // get rid of the widget
      widget.destroy();
    },


    __testDisabled: function(clazz) {
      var widget = new clazz();
      this.getRoot().add(widget);
      widget.setPlaceholder("abc");

      widget.setEnabled(false);
      this.flush();

      this.assertNull(widget.getValue(), "wrong value");
      this.assertFalse(this.__isPlaceholderVisible(widget));
      this.assertEquals("", this.__getVisibleValueOf(widget), "wrong visible value");

      widget.setEnabled(true);

      // sync the appearance
      this.__syncAppearance(widget);

      this.assertNull(widget.getValue(), "wrong value");
      this.assertTrue(this.__isPlaceholderVisible(widget));
      this.assertEquals("abc", this.__getPlaceholderValueOf(widget), "wrong visible value");

      // get rid of the widget
      widget.destroy();
    },

    __hasTextfieldChildControl : function(widget) {
      return (
        qx.Class.isSubClassOf(widget.constructor, qx.ui.form.ComboBox) ||
        qx.Class.isSubClassOf(widget.constructor, qx.ui.form.DateField));
    },

    __syncAppearance : function(widget) {
      if (qx.Class.isSubClassOf(widget.constructor, qx.ui.form.AbstractField)) {
        widget.syncAppearance();
      } else if (this.__hasTextfieldChildControl(widget)) {
        widget.getChildControl("textfield").syncAppearance();
      }
    },

    __getVisibleValueOf: function(widget) {
      if (qx.Class.isSubClassOf(widget.constructor, qx.ui.form.AbstractField)) {
        return widget.getContentElement().getValue();
      } else if (this.__hasTextfieldChildControl(widget)) {
        return widget.getChildControl("textfield").getContentElement().getValue();
      }
    },

    __getPlaceholderValueOf: function(widget) {
      var useQxPlaceholder = !qx.core.Environment.get("css.placeholder") ||
        (qx.core.Environment.get("engine.name") == "gecko" &&
         parseFloat(qx.core.Environment.get("engine.version")) >= 2);

      if (!useQxPlaceholder) {
        if (qx.Class.isSubClassOf(widget.constructor, qx.ui.form.AbstractField)) {
          return widget.getContentElement().getAttribute("placeholder");
        } else if (this.__hasTextfieldChildControl(widget)) {
          return widget.getChildControl("textfield").getContentElement().getAttribute("placeholder");
        }
      } else {
        if (qx.Class.isSubClassOf(widget.constructor, qx.ui.form.AbstractField)) {
          return widget.getContainerElement().getChildren()[1].getValue();
        } else if (this.__hasTextfieldChildControl(widget)) {
          return widget.getChildControl("textfield").getContainerElement().getChildren()[1].getValue();
        }
      }
    },

    __isPlaceholderVisible: function(widget) {
      var useQxPlaceholder = !qx.core.Environment.get("css.placeholder") ||
        (qx.core.Environment.get("engine.name") == "gecko" &&
         parseFloat(qx.core.Environment.get("engine.version")) >= 2);

      if (!useQxPlaceholder) {
        var contentElem;
        if (qx.Class.isSubClassOf(widget.constructor, qx.ui.form.AbstractField)) {
          contentElem = widget.getContentElement();
          return widget.getValue() == null &&
            contentElem.getAttribute("placeholder") != "" &&
            contentElem.getAttribute("placeholder") != null &&
            !qx.ui.core.FocusHandler.getInstance().isFocused(widget);
        } else if (this.__hasTextfieldChildControl(widget)) {
          contentElem = widget.getChildControl("textfield").getContentElement();
          return widget.getChildControl("textfield").getValue() == null &&
            contentElem.getAttribute("placeholder") != "" &&
            contentElem.getAttribute("placeholder") != null &&
            !qx.ui.core.FocusHandler.getInstance().isFocused(widget);
        }
      } else {
        if (qx.Class.isSubClassOf(widget.constructor, qx.ui.form.AbstractField)) {
          return widget.getContainerElement().getChildren()[1].getStyle("visibility") != "hidden";
        } else if (this.__hasTextfieldChildControl(widget)) {
          return widget.getChildControl("textfield").getContainerElement().getChildren()[1].getStyle("visibility") != "hidden";
        }
      }
    },



    /////////// TextField ///////////
    testInitTextField : function() {
      this.__testInit(qx.ui.form.TextField);
    },

    testChangeValueTextField : function() {
      this.__testChangeValue(qx.ui.form.TextField);
    },

    testFocusTextField: function() {
      this.__testFocus(qx.ui.form.TextField);
    },

    testRemovePlaceholderTextField: function() {
      this.__testRemovePlaceholder(qx.ui.form.TextField);
    },

    testDisabledTextField: function() {
      this.__testDisabled(qx.ui.form.TextField);
    },


    /////////// TextArea ///////////
    testInitTextArea : function() {
      this.__testInit(qx.ui.form.TextArea);
    },

    testChangeValueTextArea : function() {
      this.__testChangeValue(qx.ui.form.TextArea);
    },

    testFocusTextArea: function() {
      this.__testFocus(qx.ui.form.TextArea);
    },

    testRemovePlaceholderTextArea: function() {
      this.__testRemovePlaceholder(qx.ui.form.TextArea);
    },

    testDisabledTextArea: function() {
      this.__testDisabled(qx.ui.form.TextArea);
    },



    /////////// PasswordField ///////////
    testInitPasswordField : function() {
      this.__testInit(qx.ui.form.PasswordField);
    },

    testChangeValuePasswordField : function() {
      this.__testChangeValue(qx.ui.form.PasswordField);
    },

    testFocusPasswordField: function() {
      this.__testFocus(qx.ui.form.PasswordField);
    },

    testRemovePlaceholderPasswordField: function() {
      this.__testRemovePlaceholder(qx.ui.form.PasswordField);
    },

    testDisabledPasswordField: function() {
      this.__testDisabled(qx.ui.form.PasswordField);
    },



    /////////// ComboBox ///////////
    testInitComboBox : function() {
      this.__testInit(qx.ui.form.ComboBox);
    },

    testChangeValueComboBox : function() {
      this.__testChangeValue(qx.ui.form.ComboBox);
    },

    testFocusComboBox: function() {
      this.__testFocus(qx.ui.form.ComboBox);
    },

    testRemovePlaceholderComboBox: function() {
      this.__testRemovePlaceholder(qx.ui.form.ComboBox);
    },

    testDisabledComboBox: function() {
      this.__testDisabled(qx.ui.form.ComboBox);
    },


    /////////// DateField ///////////
    testFocusDateField: function() {
      this.__testFocus(qx.ui.form.DateField);
    },

    testRemovePlaceholderDateField: function() {
      this.__testRemovePlaceholder(qx.ui.form.DateField);
    },

    testDisabledDateField: function() {
      this.__testDisabled(qx.ui.form.DateField);
    }

  }
});