Merge branch 'html_input_datetime_1'

This is almost everything needed for #162.

1 files changed, 709 insertions, 73 deletions

diff --git a/toolkit/content/widgets/datetimebox.xml b/toolkit/content/widgets/datetimebox.xml
index 05591e65a..94574038a 100644
--- a/toolkit/content/widgets/datetimebox.xml
+++ b/toolkit/content/widgets/datetimebox.xml
@@ -4,12 +4,466 @@
    - 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/. -->
 
+<!DOCTYPE bindings [
+<!ENTITY % datetimeboxDTD SYSTEM "chrome://global/locale/datetimebox.dtd">
+%datetimeboxDTD;
+]>
+
+<!--
+TODO
+Bug 1446342:
+Input type="date" not working if the other form elements has name="document"
+
+Any alternative solution:
+document === window.document
+document === this.ownerDocument
+-->
+
 <bindings id="datetimeboxBindings"
    xmlns="http://www.mozilla.org/xbl"
    xmlns:html="http://www.w3.org/1999/xhtml"
    xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
    xmlns:xbl="http://www.mozilla.org/xbl">
 
+  <binding id="date-input"
+           extends="chrome://global/content/bindings/datetimebox.xml#datetime-input-base">
+    <resources>
+      <stylesheet src="chrome://global/content/textbox.css"/>
+      <stylesheet src="chrome://global/skin/textbox.css"/>
+      <stylesheet src="chrome://global/content/bindings/datetimebox.css"/>
+    </resources>
+
+    <implementation>
+      <constructor>
+      <![CDATA[
+        /* eslint-disable no-multi-spaces */
+        this.mYearPlaceHolder = ]]>"&date.year.placeholder;"<![CDATA[;
+        this.mMonthPlaceHolder = ]]>"&date.month.placeholder;"<![CDATA[;
+        this.mDayPlaceHolder = ]]>"&date.day.placeholder;"<![CDATA[;
+        this.mSeparatorText = "/";
+        /* eslint-enable no-multi-spaces */
+
+        this.mMinMonth = 1;
+        this.mMaxMonth = 12;
+        this.mMinDay = 1;
+        this.mMaxDay = 31;
+        this.mMinYear = 1;
+        // Maximum year limited by ECMAScript date object range, year <= 275760.
+        this.mMaxYear = 275760;
+        this.mMonthDayLength = 2;
+        this.mYearLength = 4;
+        this.mMonthPageUpDownInterval = 3;
+        this.mDayPageUpDownInterval = 7;
+        this.mYearPageUpDownInterval = 10;
+
+        // Default to en-US, month-day-year order.
+        this.mMonthField =
+          window.document.getAnonymousElementByAttribute(this, "anonid", "input-one");
+        this.mDayField =
+          window.document.getAnonymousElementByAttribute(this, "anonid", "input-two");
+        this.mYearField =
+          window.document.getAnonymousElementByAttribute(this, "anonid", "input-three");
+        this.mYearField.size = this.mYearLength;
+        this.mYearField.maxLength = this.mMaxYear.toString().length;
+
+        this.mMonthField.placeholder = this.mMonthPlaceHolder;
+        this.mDayField.placeholder = this.mDayPlaceHolder;
+        this.mYearField.placeholder = this.mYearPlaceHolder;
+
+        this.mMonthField.setAttribute("min", this.mMinMonth);
+        this.mMonthField.setAttribute("max", this.mMaxMonth);
+        this.mMonthField.setAttribute("pginterval",
+                                      this.mMonthPageUpDownInterval);
+        this.mDayField.setAttribute("min", this.mMinDay);
+        this.mDayField.setAttribute("max", this.mMaxDay);
+        this.mDayField.setAttribute("pginterval", this.mDayPageUpDownInterval);
+        this.mYearField.setAttribute("min", this.mMinYear);
+        this.mYearField.setAttribute("max", this.mMaxYear);
+        this.mYearField.setAttribute("pginterval",
+                                     this.mYearPageUpDownInterval);
+
+        this.mDaySeparator =
+          window.document.getAnonymousElementByAttribute(this, "anonid", "sep-first");
+        this.mDaySeparator.textContent = this.mSeparatorText;
+        this.mYearSeparator =
+          window.document.getAnonymousElementByAttribute(this, "anonid", "sep-second");
+        this.mYearSeparator.textContent = this.mSeparatorText;
+
+        if (this.mInputElement.value) {
+          this.setFieldsFromInputValue();
+        }
+        this.updateResetButtonVisibility();
+      ]]>
+      </constructor>
+
+      <method name="clearInputFields">
+        <parameter name="aFromInputElement"/>
+        <body>
+        <![CDATA[
+          this.log("clearInputFields");
+
+          if (this.isDisabled() || this.isReadonly()) {
+            return;
+          }
+
+          if (this.mMonthField && !this.mMonthField.disabled &&
+              !this.mMonthField.readOnly) {
+            this.mMonthField.value = "";
+            this.mMonthField.setAttribute("typeBuffer", "");
+          }
+
+          if (this.mDayField && !this.mDayField.disabled &&
+              !this.mDayField.readOnly) {
+            this.mDayField.value = "";
+            this.mDayField.setAttribute("typeBuffer", "");
+          }
+
+          if (this.mYearField && !this.mYearField.disabled &&
+              !this.mYearField.readOnly) {
+            this.mYearField.value = "";
+            this.mYearField.setAttribute("typeBuffer", "");
+          }
+
+          if (!aFromInputElement && this.mInputElement.value) {
+            this.mInputElement.setUserInput("");
+          }
+
+          this.updateResetButtonVisibility();
+        ]]>
+        </body>
+      </method>
+
+      <method name="setFieldsFromInputValue">
+        <body>
+        <![CDATA[
+          let value = this.mInputElement.value;
+          if (!value) {
+            this.clearInputFields(true);
+            return;
+          }
+
+          this.log("setFieldsFromInputValue: " + value);
+          let [year, month, day] = value.split("-");
+
+          this.setFieldValue(this.mYearField, year);
+          this.setFieldValue(this.mMonthField, month);
+          this.setFieldValue(this.mDayField, day);
+
+          this.notifyPicker();
+        ]]>
+        </body>
+      </method>
+
+      <method name="getDaysInMonth">
+        <parameter name="aMonth"/>
+        <parameter name="aYear"/>
+        <body>
+        <![CDATA[
+          // Javascript's month is 0-based, so this means last day of the
+          // previous month.
+          return new Date(aYear, aMonth, 0).getDate();
+        ]]>
+        </body>
+      </method>
+
+      <method name="isFieldInvalid">
+        <parameter name="aField"/>
+        <body>
+          <![CDATA[
+            if (this.isEmpty(aField.value)) {
+              return true;
+            }
+
+            let min = Number(aField.getAttribute("min"));
+            let max = Number(aField.getAttribute("max"));
+
+            if (Number(aField.value) < min || Number(aField.value) > max) {
+              return true;
+            }
+
+            return false;
+          ]]>
+        </body>
+      </method>
+
+      <method name="setInputValueFromFields">
+        <body>
+        <![CDATA[
+          if (!this.isAnyValueAvailable(false) && this.mInputElement.value) {
+            // Values in the input box was cleared, clear the input element's
+            // value if not empty.
+            this.mInputElement.setUserInput("");
+            return;
+          }
+
+          if (this.isFieldInvalid(this.mYearField) ||
+              this.isFieldInvalid(this.mMonthField) ||
+              this.isFieldInvalid(this.mDayField)) {
+            // We still need to notify picker in case any of the field has
+            // changed. If we can set input element value, then notifyPicker
+            // will be called in setFieldsFromInputValue().
+            this.notifyPicker();
+            return;
+          }
+
+          let year = this.mYearField.value;
+          let month = this.mMonthField.value;
+          let day = this.mDayField.value;
+
+          if (day > this.getDaysInMonth(month, year)) {
+            // Don't set invalid date, otherwise input element's value will be
+            // set to empty.
+            return;
+          }
+
+          let date = [year, month, day].join("-");
+
+          if (date == this.mInputElement.value) {
+            return;
+          }
+
+          this.log("setInputValueFromFields: " + date);
+          this.mInputElement.setUserInput(date);
+        ]]>
+        </body>
+      </method>
+
+      <method name="setFieldsFromPicker">
+        <parameter name="aValue"/>
+        <body>
+        <![CDATA[
+          let year = aValue.year;
+          let month = aValue.month;
+          let day = aValue.day;
+
+          if (!this.isEmpty(year)) {
+            this.setFieldValue(this.mYearField, year);
+          }
+
+          if (!this.isEmpty(month)) {
+            this.setFieldValue(this.mMonthField, month);
+          }
+
+          if (!this.isEmpty(day)) {
+            this.setFieldValue(this.mDayField, day);
+          }
+
+          // Update input element's .value if needed.
+          this.setInputValueFromFields();
+        ]]>
+        </body>
+      </method>
+
+      <method name="handleKeypress">
+        <parameter name="aEvent"/>
+        <body>
+        <![CDATA[
+          if (this.isDisabled() || this.isReadonly()) {
+            return;
+          }
+
+          let targetField = aEvent.originalTarget;
+          let key = aEvent.key;
+
+          if (targetField.classList.contains("numeric") && key.match(/[0-9]/)) {
+            let buffer = targetField.getAttribute("typeBuffer") || "";
+
+            buffer = buffer.concat(key);
+            this.setFieldValue(targetField, buffer);
+            targetField.select();
+
+            let n = Number(buffer);
+            let max = targetField.getAttribute("max");
+            if (buffer.length >= targetField.maxLength || n * 10 > max) {
+              buffer = "";
+              this.advanceToNextField();
+            }
+            targetField.setAttribute("typeBuffer", buffer);
+          }
+        ]]>
+        </body>
+      </method>
+
+      <method name="incrementFieldValue">
+        <parameter name="aTargetField"/>
+        <parameter name="aTimes"/>
+        <body>
+        <![CDATA[
+          let value;
+
+          // Use current date if field is empty.
+          if (this.isEmpty(aTargetField.value)) {
+            let now = new Date();
+
+            if (aTargetField == this.mYearField) {
+              value = now.getFullYear();
+            } else if (aTargetField == this.mMonthField) {
+              value = now.getMonth() + 1;
+            } else if (aTargetField == this.mDayField) {
+              value = now.getDate();
+            } else {
+              this.log("Field not supported in incrementFieldValue.");
+              return;
+            }
+          } else {
+            value = Number(aTargetField.value);
+          }
+
+          let min = Number(aTargetField.getAttribute("min"));
+          let max = Number(aTargetField.getAttribute("max"));
+
+          value += Number(aTimes);
+          if (value > max) {
+            value -= (max - min + 1);
+          } else if (value < min) {
+            value += (max - min + 1);
+          }
+          this.setFieldValue(aTargetField, value);
+          aTargetField.select();
+        ]]>
+        </body>
+      </method>
+
+      <method name="handleKeyboardNav">
+        <parameter name="aEvent"/>
+        <body>
+        <![CDATA[
+          if (this.isDisabled() || this.isReadonly()) {
+            return;
+          }
+
+          let targetField = aEvent.originalTarget;
+          let key = aEvent.key;
+
+          // Home/End key does nothing on year field.
+          if (targetField == this.mYearField && (key == "Home" ||
+                                                 key == "End")) {
+            return;
+          }
+
+          switch (key) {
+            case "ArrowUp":
+              this.incrementFieldValue(targetField, 1);
+              break;
+            case "ArrowDown":
+              this.incrementFieldValue(targetField, -1);
+              break;
+            case "PageUp": {
+              let interval = targetField.getAttribute("pginterval");
+              this.incrementFieldValue(targetField, interval);
+              break;
+            }
+            case "PageDown": {
+              let interval = targetField.getAttribute("pginterval");
+              this.incrementFieldValue(targetField, 0 - interval);
+              break;
+            }
+            case "Home":
+              let min = targetField.getAttribute("min");
+              this.setFieldValue(targetField, min);
+              targetField.select();
+              break;
+            case "End":
+              let max = targetField.getAttribute("max");
+              this.setFieldValue(targetField, max);
+              targetField.select();
+              break;
+          }
+          this.setInputValueFromFields();
+        ]]>
+        </body>
+      </method>
+
+      <method name="getCurrentValue">
+        <body>
+        <![CDATA[
+          let year;
+          if (!this.isEmpty(this.mYearField.value)) {
+            year = Number(this.mYearField.value);
+          }
+
+          let month;
+          if (!this.isEmpty(this.mMonthField.value)) {
+            month = Number(this.mMonthField.value);
+          }
+
+          let day;
+          if (!this.isEmpty(this.mDayField.value)) {
+            day = Number(this.mDayField.value);
+          }
+
+          let date = { year, month, day };
+
+          this.log("getCurrentValue: " + JSON.stringify(date));
+          return date;
+        ]]>
+        </body>
+      </method>
+
+      <method name="setFieldValue">
+       <parameter name="aField"/>
+       <parameter name="aValue"/>
+        <body>
+        <![CDATA[
+          let value = Number(aValue);
+          if (isNaN(value)) {
+            this.log("NaN on setFieldValue!");
+            return;
+          }
+
+          if (aValue.length == aField.maxLength) {
+            let min = Number(aField.getAttribute("min"));
+            let max = Number(aField.getAttribute("max"));
+
+            if (aValue < min) {
+              value = min;
+            } else if (aValue > max) {
+              value = max;
+            }
+          }
+
+          if (aField == this.mMonthField ||
+              aField == this.mDayField) {
+            // prepend zero
+            if (value < 10) {
+              value = "0" + value;
+            }
+          } else {
+            // prepend zeroes
+            if (value < 10) {
+              value = "000" + value;
+            } else if (value < 100) {
+              value = "00" + value;
+            } else if (value < 1000) {
+              value = "0" + value;
+            }
+
+            if (value.toString().length > this.mYearLength &&
+                value.toString().length <= this.mMaxYear.toString().length) {
+              this.mYearField.size = value.toString().length;
+            }
+          }
+
+          aField.value = value;
+          this.updateResetButtonVisibility();
+        ]]>
+        </body>
+      </method>
+
+      <method name="isAnyValueAvailable">
+        <parameter name="aForPicker"/>
+        <body>
+        <![CDATA[
+          return !this.isEmpty(this.mMonthField.value) ||
+                 !this.isEmpty(this.mDayField.value) ||
+                 !this.isEmpty(this.mYearField.value);
+        ]]>
+        </body>
+      </method>
+
+    </implementation>
+  </binding>
+
   <binding id="time-input"
            extends="chrome://global/content/bindings/datetimebox.xml#datetime-input-base">
     <resources>
@@ -45,13 +499,13 @@
         this.mMinSecPageUpDownInterval = 10;
 
         this.mHourField =
-          document.getAnonymousElementByAttribute(this, "anonid", "input-one");
+          window.document.getAnonymousElementByAttribute(this, "anonid", "input-one");
         this.mHourField.setAttribute("typeBuffer", "");
         this.mMinuteField =
-          document.getAnonymousElementByAttribute(this, "anonid", "input-two");
+          window.document.getAnonymousElementByAttribute(this, "anonid", "input-two");
         this.mMinuteField.setAttribute("typeBuffer", "");
         this.mDayPeriodField =
-          document.getAnonymousElementByAttribute(this, "anonid", "input-three");
+          window.document.getAnonymousElementByAttribute(this, "anonid", "input-three");
         this.mDayPeriodField.classList.remove("numeric");
 
         this.mHourField.placeholder = this.mPlaceHolder;
@@ -64,10 +518,10 @@
         this.mMinuteField.setAttribute("max", this.mMaxMinute);
 
         this.mMinuteSeparator =
-           document.getAnonymousElementByAttribute(this, "anonid", "sep-first");
+          window.document.getAnonymousElementByAttribute(this, "anonid", "sep-first");
         this.mMinuteSeparator.textContent = this.mSeparatorText;
         this.mSpaceSeparator =
-          document.getAnonymousElementByAttribute(this, "anonid", "sep-second");
+          window.document.getAnonymousElementByAttribute(this, "anonid", "sep-second");
         // space between time and am/pm field
         this.mSpaceSeparator.textContent = " ";
 
@@ -79,6 +533,7 @@
         if (this.mInputElement.value) {
           this.setFieldsFromInputValue();
         }
+        this.updateResetButtonVisibility();
         ]]>
       </constructor>
 
@@ -138,7 +593,7 @@
           }
 
           this.log("setFieldsFromInputValue: " + value);
-          let [hour, minute, second] = value.split(':');
+          let [hour, minute, second] = value.split(":");
 
           this.setFieldValue(this.mHourField, hour);
           this.setFieldValue(this.mMinuteField, minute);
@@ -204,6 +659,13 @@
       <method name="setInputValueFromFields">
         <body>
         <![CDATA[
+          if (!this.isAnyValueAvailable(false) && this.mInputElement.value) {
+            // Values in the input box was cleared, clear the input element's
+            // value if not empty.
+            this.mInputElement.setUserInput("");
+            return;
+          }
+
           if (this.isEmpty(this.mHourField.value) ||
               this.isEmpty(this.mMinuteField.value) ||
               (this.mDayPeriodField && this.isEmpty(this.mDayPeriodField.value)) ||
@@ -239,6 +701,10 @@
             time += "." + this.mMillisecField.value;
           }
 
+          if (time == this.mInputElement.value) {
+            return;
+          }
+
           this.log("setInputValueFromFields: " + time);
           this.mInputElement.setUserInput(time);
         ]]>
@@ -265,6 +731,9 @@
           if (!this.isEmpty(minute)) {
             this.setFieldValue(this.mMinuteField, minute);
           }
+
+          // Update input element's .value if needed.
+          this.setInputValueFromFields();
         ]]>
         </body>
        </method>
@@ -282,21 +751,25 @@
           if (this.mHourField && !this.mHourField.disabled &&
               !this.mHourField.readOnly) {
             this.mHourField.value = "";
+            this.mHourField.setAttribute("typeBuffer", "");
           }
 
           if (this.mMinuteField && !this.mMinuteField.disabled &&
               !this.mMinuteField.readOnly) {
             this.mMinuteField.value = "";
+            this.mMinuteField.setAttribute("typeBuffer", "");
           }
 
           if (this.mSecondField && !this.mSecondField.disabled &&
               !this.mSecondField.readOnly) {
             this.mSecondField.value = "";
+            this.mSecondField.setAttribute("typeBuffer", "");
           }
 
           if (this.mMillisecField && !this.mMillisecField.disabled &&
               !this.mMillisecField.readOnly) {
             this.mMillisecField.value = "";
+            this.mMillisecField.setAttribute("typeBuffer", "");
           }
 
           if (this.mDayPeriodField && !this.mDayPeriodField.disabled &&
@@ -304,9 +777,11 @@
             this.mDayPeriodField.value = "";
           }
 
-          if (!aFromInputElement) {
+          if (!aFromInputElement && this.mInputElement.value) {
             this.mInputElement.setUserInput("");
           }
+
+          this.updateResetButtonVisibility();
         ]]>
         </body>
       </method>
@@ -376,6 +851,7 @@
               this.mDayPeriodField.value == this.mAMIndicator ?
                 this.mPMIndicator : this.mAMIndicator;
             this.mDayPeriodField.select();
+            this.updateResetButtonVisibility();
             this.setInputValueFromFields();
             return;
           }
@@ -433,6 +909,7 @@
               this.mDayPeriodField.value = this.mPMIndicator;
               this.mDayPeriodField.select();
             }
+            this.updateResetButtonVisibility();
             return;
           }
 
@@ -488,16 +965,30 @@
           }
 
           aField.value = value;
+          this.updateResetButtonVisibility();
         ]]>
         </body>
       </method>
 
-      <method name="isValueAvailable">
+      <method name="isAnyValueAvailable">
+        <parameter name="aForPicker"/>
         <body>
         <![CDATA[
+          let available = !this.isEmpty(this.mHourField.value) ||
+                          !this.isEmpty(this.mMinuteField.value);
+
+          if (available) {
+            return true;
+          }
+
           // Picker only cares about hour:minute.
-          return !this.isEmpty(this.mHourField.value) ||
-                 !this.isEmpty(this.mMinuteField.value);
+          if (aForPicker) {
+            return false;
+          }
+
+          return (this.mDayPeriodField && !this.isEmpty(this.mDayPeriodField.value)) ||
+                 (this.mSecondField && !this.isEmpty(this.mSecondField.value)) ||
+                 (this.mMillisecField && !this.isEmpty(this.mMillisecField.value));
         ]]>
         </body>
       </method>
@@ -546,7 +1037,8 @@
     <content>
       <html:div class="datetime-input-box-wrapper"
                 xbl:inherits="context,disabled,readonly">
-        <html:span>
+        <html:span class="datetime-input-edit-wrapper"
+                   anonid="edit-wrapper">
           <html:input anonid="input-one"
                       class="textbox-input datetime-input numeric"
                       size="2" maxlength="2"
@@ -563,9 +1055,8 @@
                       xbl:inherits="disabled,readonly,tabindex"/>
         </html:span>
 
-        <html:button class="datetime-reset-button" anoid="reset-button"
-                     tabindex="-1" xbl:inherits="disabled"
-                     onclick="document.getBindingParent(this).clearInputFields(false);"/>
+        <html:button class="datetime-reset-button" anonid="reset-button"
+                     tabindex="-1" xbl:inherits="disabled"/>
       </html:div>
     </content>
 
@@ -579,9 +1070,49 @@
         this.mMax = this.mInputElement.max;
         this.mStep = this.mInputElement.step;
         this.mIsPickerOpen = false;
+
+        this.mResetButton =
+          window.document.getAnonymousElementByAttribute(this, "anonid", "reset-button");
+
+        this.EVENTS.forEach((eventName) => {
+          this.addEventListener(eventName, this, { mozSystemGroup: true });
+        });
+        // Handle keypress separately since we need to catch it on capturing.
+        this.addEventListener("keypress", this, {
+          capture: true,
+          mozSystemGroup: true
+        });
+        // This is to open the picker when input element is clicked (this
+        // includes padding area).
+        this.mInputElement.addEventListener("click", this,
+                                            { mozSystemGroup: true });
       ]]>
       </constructor>
 
+      <destructor>
+      <![CDATA[
+        this.EVENTS.forEach((eventName) => {
+          this.removeEventListener(eventName, this, { mozSystemGroup: true });
+        });
+        this.removeEventListener("keypress", this, {
+          capture: true,
+          mozSystemGroup: true
+        });
+        this.mInputElement.removeEventListener("click", this,
+                                               { mozSystemGroup: true });
+
+        this.mInputElement = null;
+      ]]>
+      </destructor>
+
+      <property name="EVENTS" readonly="true">
+        <getter>
+        <![CDATA[
+          return ["focus", "blur", "copy", "cut", "paste", "mousedown"];
+        ]]>
+        </getter>
+      </property>
+
       <method name="log">
         <parameter name="aMsg"/>
         <body>
@@ -593,11 +1124,23 @@
         </body>
       </method>
 
+      <method name="updateResetButtonVisibility">
+        <body>
+          <![CDATA[
+            if (this.isAnyValueAvailable(false)) {
+              this.mResetButton.style.visibility = "visible";
+            } else {
+              this.mResetButton.style.visibility = "hidden";
+            }
+          ]]>
+        </body>
+      </method>
+
       <method name="focusInnerTextBox">
         <body>
         <![CDATA[
           this.log("focusInnerTextBox");
-          document.getAnonymousElementByAttribute(this, "anonid", "input-one").focus();
+          window.document.getAnonymousElementByAttribute(this, "anonid", "input-one").focus();
         ]]>
         </body>
       </method>
@@ -710,10 +1253,22 @@
         </body>
       </method>
 
+      <method name="getCurrentValue">
+        <body>
+          throw Components.results.NS_ERROR_NOT_IMPLEMENTED;
+        </body>
+      </method>
+
+      <method name="isAnyValueAvailable">
+        <body>
+          throw Components.results.NS_ERROR_NOT_IMPLEMENTED;
+        </body>
+      </method>
+
       <method name="notifyPicker">
         <body>
         <![CDATA[
-          if (this.mIsPickerOpen && this.isValueAvailable()) {
+          if (this.mIsPickerOpen && this.isAnyValueAvailable(true)) {
             this.mInputElement.updateDateTimePicker(this.getCurrentValue());
           }
         ]]>
@@ -736,72 +1291,153 @@
         </body>
       </method>
 
-    </implementation>
-
-    <handlers>
-      <handler event="focus">
-      <![CDATA[
-        this.log("focus on: " + event.originalTarget);
+      <method name="handleEvent">
+        <parameter name="aEvent"/>
+        <body>
+        <![CDATA[
+          this.log("handleEvent: " + aEvent.type);
 
-        let target = event.originalTarget;
-        if (target.type == "text") {
-          this.mLastFocusedField = target;
-          target.select();
-        }
-      ]]>
-      </handler>
+          switch (aEvent.type) {
+            case "keypress": {
+              this.onKeyPress(aEvent);
+              break;
+            }
+            case "click": {
+              this.onClick(aEvent);
+              break;
+            }
+            case "focus": {
+              this.onFocus(aEvent);
+              break;
+            }
+            case "blur": {
+              this.onBlur(aEvent);
+              break;
+            }
+            case "mousedown": {
+              if (aEvent.originalTarget == this.mResetButton) {
+                aEvent.preventDefault();
+              }
+              break;
+            }
+            case "copy":
+            case "cut":
+            case "paste": {
+              aEvent.preventDefault();
+              break;
+            }
+            default:
+              break;
+          }
+        ]]>
+        </body>
+      </method>
 
-      <handler event="blur">
-      <![CDATA[
-        this.setInputValueFromFields();
-      ]]>
-      </handler>
+      <method name="onFocus">
+        <parameter name="aEvent"/>
+        <body>
+        <![CDATA[
+          this.log("onFocus originalTarget: " + aEvent.originalTarget);
 
-      <handler event="click">
-      <![CDATA[
-        // XXX: .originalTarget is not expected.
-        // When clicking on one of the inner text boxes, the .originalTarget is
-        // a HTMLDivElement and when clicking on the reset button, it's a
-        // HTMLButtonElement but it's not equal to our reset-button.
-        this.log("click on: " + event.originalTarget);
-        if (event.defaultPrevented || this.isDisabled() || this.isReadonly()) {
-          return;
-        }
+          let target = aEvent.originalTarget;
+          if ((target instanceof HTMLInputElement) && target.type == "text") {
+            this.mLastFocusedField = target;
+            target.select();
+          }
+        ]]>
+        </body>
+      </method>
 
-        if (!(event.originalTarget instanceof HTMLButtonElement)) {
-          this.mInputElement.openDateTimePicker(this.getCurrentValue());
-        }
-      ]]>
-      </handler>
+      <method name="onBlur">
+        <parameter name="aEvent"/>
+        <body>
+        <![CDATA[
+          this.log("onBlur originalTarget: " + aEvent.originalTarget +
+            " target: " + aEvent.target);
 
-      <handler event="keypress" phase="capturing">
-      <![CDATA[
-        let key = event.key;
-        this.log("keypress: " + key);
+          let target = aEvent.originalTarget;
+          target.setAttribute("typeBuffer", "");
+          this.setInputValueFromFields();
+        ]]>
+        </body>
+      </method>
 
-        if (key == "Backspace" || key == "Tab") {
-          return;
-        }
+      <method name="onKeyPress">
+        <parameter name="aEvent"/>
+        <body>
+        <![CDATA[
+          this.log("onKeyPress key: " + aEvent.key);
+
+          switch (aEvent.key) {
+            // Close picker on Enter, Escape or Space key.
+            case "Enter":
+            case "Escape":
+            case " ": {
+              if (this.mIsPickerOpen) {
+                this.mInputElement.closeDateTimePicker();
+                aEvent.preventDefault();
+              }
+              break;
+            }
+            case "Backspace": {
+              let targetField = aEvent.originalTarget;
+              targetField.value = "";
+              targetField.setAttribute("typeBuffer", "");
+              this.updateResetButtonVisibility();
+              this.setInputValueFromFields();
+              aEvent.preventDefault();
+              break;
+            }
+            case "ArrowRight":
+            case "ArrowLeft": {
+              this.advanceToNextField(aEvent.key == "ArrowRight" ? false : true);
+              aEvent.preventDefault();
+              break;
+            }
+            case "ArrowUp":
+            case "ArrowDown":
+            case "PageUp":
+            case "PageDown":
+            case "Home":
+            case "End": {
+              this.handleKeyboardNav(aEvent);
+              aEvent.preventDefault();
+              break;
+            }
+            default: {
+              // printable characters
+              if (aEvent.keyCode == 0 &&
+                  !(aEvent.ctrlKey || aEvent.altKey || aEvent.metaKey)) {
+                this.handleKeypress(aEvent);
+                aEvent.preventDefault();
+              }
+              break;
+            }
+          }
+        ]]>
+        </body>
+      </method>
 
-        if (key == "Enter" || key == " ") {
-          // Close picker on Enter and Space.
-          this.mInputElement.closeDateTimePicker();
-        }
+      <method name="onClick">
+        <parameter name="aEvent"/>
+        <body>
+        <![CDATA[
+          this.log("onClick originalTarget: " + aEvent.originalTarget +
+                   " target: " + aEvent.target);
 
-        if (key == "ArrowUp" || key == "ArrowDown" ||
-            key == "PageUp" || key == "PageDown" ||
-            key == "Home" || key == "End") {
-          this.handleKeyboardNav(event);
-        } else if (key == "ArrowRight" || key == "ArrowLeft") {
-          this.advanceToNextField((key == "ArrowRight" ? false : true));
-        } else {
-          this.handleKeypress(event);
-        }
+          if (aEvent.defaultPrevented || this.isDisabled() || this.isReadonly()) {
+            return;
+          }
 
-        event.preventDefault();
-      ]]>
-      </handler>
-    </handlers>
+          if (aEvent.originalTarget == this.mResetButton) {
+            this.clearInputFields(false);
+          } else if (!this.mIsPickerOpen) {
+            this.mInputElement.openDateTimePicker(this.getCurrentValue());
+          }
+        ]]>
+        </body>
+      </method>
+    </implementation>
   </binding>
 
 </bindings>