michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0:  * You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: "use strict";
michael@0: 
michael@0: var InputWidgetHelper = {
michael@0:   _uiBusy: false,
michael@0: 
michael@0:   handleEvent: function(aEvent) {
michael@0:     this.handleClick(aEvent.target);
michael@0:   },
michael@0: 
michael@0:   handleClick: function(aTarget) {
michael@0:     // if we're busy looking at a InputWidget we want to eat any clicks that
michael@0:     // come to us, but not to process them
michael@0:     if (this._uiBusy || !this.hasInputWidget(aTarget))
michael@0:       return;
michael@0: 
michael@0:     this._uiBusy = true;
michael@0:     this.show(aTarget);
michael@0:     this._uiBusy = false;
michael@0:   },
michael@0: 
michael@0:   show: function(aElement) {
michael@0:     let type = aElement.getAttribute('type');
michael@0:     let p = new Prompt({
michael@0:       window: aElement.ownerDocument.defaultView,
michael@0:       title: Strings.browser.GetStringFromName("inputWidgetHelper." + aElement.getAttribute('type')),
michael@0:       buttons: [
michael@0:         Strings.browser.GetStringFromName("inputWidgetHelper.set"),
michael@0:         Strings.browser.GetStringFromName("inputWidgetHelper.clear"),
michael@0:         Strings.browser.GetStringFromName("inputWidgetHelper.cancel")
michael@0:       ],
michael@0:     }).addDatePicker({
michael@0:       value: aElement.value,
michael@0:       type: type,
michael@0:     }).show((function(data) {
michael@0:       let changed = false;
michael@0:       if (data.button == -1) {
michael@0:         // This type is not supported with this android version.
michael@0:         return;
michael@0:       }
michael@0:       if (data.button == 1) {
michael@0:         // The user cleared the value.
michael@0:         if (aElement.value != "") {
michael@0:           aElement.value = "";
michael@0:           changed = true;
michael@0:         }
michael@0:       } else if (data.button == 0) {
michael@0:         // Commit the new value.
michael@0:         if (aElement.value != data[type]) {
michael@0:           aElement.value = data[type + "0"];
michael@0:           changed = true;
michael@0:         }
michael@0:       }
michael@0:       // Else the user canceled the input.
michael@0: 
michael@0:       if (changed)
michael@0:         this.fireOnChange(aElement);
michael@0:     }).bind(this));
michael@0:   },
michael@0: 
michael@0:   hasInputWidget: function(aElement) {
michael@0:     if (!aElement instanceof HTMLInputElement)
michael@0:       return false;
michael@0: 
michael@0:     let type = aElement.getAttribute('type');
michael@0:     if (type == "date" || type == "datetime" || type == "datetime-local" ||
michael@0:         type == "week" || type == "month" || type == "time") {
michael@0:       return true;
michael@0:     }
michael@0: 
michael@0:     return false;
michael@0:   },
michael@0: 
michael@0:   fireOnChange: function(aElement) {
michael@0:     let evt = aElement.ownerDocument.createEvent("Events");
michael@0:     evt.initEvent("change", true, true, aElement.defaultView, 0,
michael@0:                   false, false,
michael@0:                   false, false, null);
michael@0:     setTimeout(function() {
michael@0:       aElement.dispatchEvent(evt);
michael@0:     }, 0);
michael@0:   }
michael@0: };