/////////////////////////////////////////////////////////////////////////////
// PrefInputElement class:
- // Define a constructor that uses an input element as its underlying element.
+ /**
+ * Define a constructor that uses an input element as its underlying element.
+ * @constructor
+ * @extends {HTMLInputElement}
+ */
var PrefInputElement = cr.ui.define('input');
PrefInputElement.prototype = {
},
/**
- * Update the input element's state when the associated pref changes.
+ * Handles changes to the pref. If a custom change handler does not suppress
+ * it, a default handler is invoked that update the input element's state.
* @param {Event} event Pref change event.
* @private
*/
updateStateFromPref_: function(event) {
- this.value = event.value.value;
+ if (!this.customPrefChangeHandler(event))
+ this.value = event.value.value;
},
/**
customChangeHandler: function(event) {
return false;
},
+
+ /**
+ * Custom change handler that is invoked first when the preference
+ * associated with the input element changes. If it returns false, a default
+ * handler is invoked next that updates the input element. If it returns
+ * true, the default handler is suppressed.
+ * @param {Event} event Input element change event.
+ */
+ customPrefChangeHandler: function(event) {
+ return false;
+ },
};
/**
* The name of the associated preference.
- * @type {string}
*/
cr.defineProperty(PrefInputElement, 'pref', cr.PropertyKind.ATTR);
/**
* The data type of the associated preference, only relevant for derived
* classes that support different data types.
- * @type {string}
*/
cr.defineProperty(PrefInputElement, 'dataType', cr.PropertyKind.ATTR);
* in the settings UI immediately but are only actually committed when the
* user confirms the dialog. If the user cancels the dialog instead, the
* changes are rolled back in the settings UI and never committed.
- * @type {boolean}
*/
cr.defineProperty(PrefInputElement, 'dialogPref', cr.PropertyKind.BOOL_ATTR);
/**
* Whether the associated preference is controlled by a source other than the
* user's setting (can be 'policy', 'extension', 'recommended' or unset).
- * @type {string}
*/
cr.defineProperty(PrefInputElement, 'controlledBy', cr.PropertyKind.ATTR);
/**
* The user metric string.
- * @type {string}
*/
cr.defineProperty(PrefInputElement, 'metric', cr.PropertyKind.ATTR);
/////////////////////////////////////////////////////////////////////////////
// PrefCheckbox class:
- // Define a constructor that uses an input element as its underlying element.
+ /**
+ * Define a constructor that uses an input element as its underlying element.
+ * @constructor
+ * @extends {options.PrefInputElement}
+ */
var PrefCheckbox = cr.ui.define('input');
PrefCheckbox.prototype = {
* @private
*/
updateStateFromPref_: function(event) {
+ if (this.customPrefChangeHandler(event))
+ return;
var value = Boolean(event.value.value);
this.checked = this.inverted_pref ? !value : value;
},
/**
* Whether the mapping between checkbox state and associated pref is inverted.
- * @type {boolean}
*/
cr.defineProperty(PrefCheckbox, 'inverted_pref', cr.PropertyKind.BOOL_ATTR);
* @private
*/
updateStateFromPref_: function(event) {
- this.checked = this.value == String(event.value.value);
+ if (!this.customPrefChangeHandler(event))
+ this.checked = this.value == String(event.value.value);
},
};
/////////////////////////////////////////////////////////////////////////////
// PrefRange class:
- // Define a constructor that uses an input element as its underlying element.
+ /**
+ * Define a constructor that uses an input element as its underlying element.
+ * @constructor
+ * @extends {options.PrefInputElement}
+ */
var PrefRange = cr.ui.define('input');
PrefRange.prototype = {
// https://bugs.webkit.org/show_bug.cgi?id=52256
this.addEventListener('keyup', this.handleRelease_.bind(this));
this.addEventListener('mouseup', this.handleRelease_.bind(this));
+ this.addEventListener('touchcancel', this.handleRelease_.bind(this));
+ this.addEventListener('touchend', this.handleRelease_.bind(this));
},
/**
* @private
*/
updatePrefFromState_: function() {
- Preferences.setIntegerPref(this.pref, this.mapPositionToPref(this.value),
- !this.dialogPref, this.metric);
+ Preferences.setIntegerPref(
+ this.pref,
+ this.mapPositionToPref(parseInt(this.value, 10)),
+ !this.dialogPref,
+ this.metric);
},
/**
},
/**
- * Update the slider position when the associated pref changes.
+ * Handles changes to the pref associated with the slider. If a custom
+ * change handler does not suppress it, a default handler is invoked that
+ * updates the slider position.
* @param {Event} event Pref change event.
* @private
*/
updateStateFromPref_: function(event) {
+ if (this.customPrefChangeHandler(event))
+ return;
var value = event.value.value;
this.value = this.valueMap ? this.valueMap.indexOf(value) : value;
},
* @private
*/
updateStateFromPref_: function(event) {
+ if (this.customPrefChangeHandler(event))
+ return;
+
// Make sure the value is a string, because the value is stored as a
// string in the HTMLOptionElement.
- value = String(event.value.value);
+ var value = String(event.value.value);
var found = false;
for (var i = 0; i < this.options.length; i++) {
/**
* The name of the associated preference.
- * @type {string}
*/
cr.defineProperty(PrefButton, 'pref', cr.PropertyKind.ATTR);
/**
* Whether the associated preference is controlled by a source other than the
* user's setting (can be 'policy', 'extension', 'recommended' or unset).
- * @type {string}
*/
cr.defineProperty(PrefButton, 'controlledBy', cr.PropertyKind.ATTR);
// Export
return {
PrefCheckbox: PrefCheckbox,
+ PrefInputElement: PrefInputElement,
PrefNumber: PrefNumber,
PrefRadio: PrefRadio,
PrefRange: PrefRange,
projects / platform / framework / web / crosswalk.git / blobdiff