--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cm/media/js/lib/yui/yui3-3.15.0/build/event-valuechange/event-valuechange.js Mon Mar 10 15:19:48 2014 +0100
@@ -0,0 +1,554 @@
+YUI.add('event-valuechange', function (Y, NAME) {
+
+/**
+Adds a synthetic `valuechange` event that fires when the `value` property of an
+`<input>`, `<textarea>`, `<select>`, or `[contenteditable="true"]` node changes
+as a result of a keystroke, mouse operation, or input method editor (IME)
+input event.
+
+Usage:
+
+ YUI().use('event-valuechange', function (Y) {
+ Y.one('#my-input').on('valuechange', function (e) {
+ });
+ });
+
+@module event-valuechange
+**/
+
+/**
+Provides the implementation for the synthetic `valuechange` event. This class
+isn't meant to be used directly, but is public to make monkeypatching possible.
+
+Usage:
+
+ YUI().use('event-valuechange', function (Y) {
+ Y.one('#my-input').on('valuechange', function (e) {
+ });
+ });
+
+@class ValueChange
+@static
+*/
+
+var DATA_KEY = '_valuechange',
+ VALUE = 'value',
+ NODE_NAME = 'nodeName',
+
+ config, // defined at the end of this file
+
+// Just a simple namespace to make methods overridable.
+VC = {
+ // -- Static Constants -----------------------------------------------------
+
+ /**
+ Interval (in milliseconds) at which to poll for changes to the value of an
+ element with one or more `valuechange` subscribers when the user is likely
+ to be interacting with it.
+
+ @property POLL_INTERVAL
+ @type Number
+ @default 50
+ @static
+ **/
+ POLL_INTERVAL: 50,
+
+ /**
+ Timeout (in milliseconds) after which to stop polling when there hasn't been
+ any new activity (keypresses, mouse clicks, etc.) on an element.
+
+ @property TIMEOUT
+ @type Number
+ @default 10000
+ @static
+ **/
+ TIMEOUT: 10000,
+
+ // -- Protected Static Methods ---------------------------------------------
+
+ /**
+ Called at an interval to poll for changes to the value of the specified
+ node.
+
+ @method _poll
+ @param {Node} node Node to poll.
+
+ @param {Object} options Options object.
+ @param {EventFacade} [options.e] Event facade of the event that
+ initiated the polling.
+
+ @protected
+ @static
+ **/
+ _poll: function (node, options) {
+ var domNode = node._node, // performance cheat; getValue() is a big hit when polling
+ event = options.e,
+ vcData = node._data && node._data[DATA_KEY], // another perf cheat
+ stopped = 0,
+ facade, prevVal, newVal, nodeName, selectedOption, stopElement;
+
+ if (!(domNode && vcData)) {
+ VC._stopPolling(node);
+ return;
+ }
+
+ prevVal = vcData.prevVal;
+ nodeName = vcData.nodeName;
+
+ if (vcData.isEditable) {
+ // Use innerHTML for performance
+ newVal = domNode.innerHTML;
+ } else if (nodeName === 'input' || nodeName === 'textarea') {
+ // Use value property for performance
+ newVal = domNode.value;
+ } else if (nodeName === 'select') {
+ // Back-compatibility with IE6 <select> element values.
+ // Huge performance cheat to get past node.get('value').
+ selectedOption = domNode.options[domNode.selectedIndex];
+ newVal = selectedOption.value || selectedOption.text;
+ }
+
+ if (newVal !== prevVal) {
+ vcData.prevVal = newVal;
+
+ facade = {
+ _event : event,
+ currentTarget: (event && event.currentTarget) || node,
+ newVal : newVal,
+ prevVal : prevVal,
+ target : (event && event.target) || node
+ };
+
+ Y.Object.some(vcData.notifiers, function (notifier) {
+ var evt = notifier.handle.evt,
+ newStopped;
+
+ // support e.stopPropagation()
+ if (stopped !== 1) {
+ notifier.fire(facade);
+ } else if (evt.el === stopElement) {
+ notifier.fire(facade);
+ }
+
+ newStopped = evt && evt._facade ? evt._facade.stopped : 0;
+
+ // need to consider the condition in which there are two
+ // listeners on the same element:
+ // listener 1 calls e.stopPropagation()
+ // listener 2 calls e.stopImmediatePropagation()
+ if (newStopped > stopped) {
+ stopped = newStopped;
+
+ if (stopped === 1) {
+ stopElement = evt.el;
+ }
+ }
+
+ // support e.stopImmediatePropagation()
+ if (stopped === 2) {
+ return true;
+ }
+ });
+
+ VC._refreshTimeout(node);
+ }
+ },
+
+ /**
+ Restarts the inactivity timeout for the specified node.
+
+ @method _refreshTimeout
+ @param {Node} node Node to refresh.
+ @param {SyntheticEvent.Notifier} notifier
+ @protected
+ @static
+ **/
+ _refreshTimeout: function (node, notifier) {
+ // The node may have been destroyed, so check that it still exists
+ // before trying to get its data. Otherwise an error will occur.
+ if (!node._node) {
+ return;
+ }
+
+ var vcData = node.getData(DATA_KEY);
+
+ VC._stopTimeout(node); // avoid dupes
+
+ // If we don't see any changes within the timeout period (10 seconds by
+ // default), stop polling.
+ vcData.timeout = setTimeout(function () {
+ VC._stopPolling(node, notifier);
+ }, VC.TIMEOUT);
+
+ },
+
+ /**
+ Begins polling for changes to the `value` property of the specified node. If
+ polling is already underway for the specified node, it will not be restarted
+ unless the `force` option is `true`
+
+ @method _startPolling
+ @param {Node} node Node to watch.
+ @param {SyntheticEvent.Notifier} notifier
+
+ @param {Object} options Options object.
+ @param {EventFacade} [options.e] Event facade of the event that
+ initiated the polling.
+ @param {Boolean} [options.force=false] If `true`, polling will be
+ restarted even if we're already polling this node.
+
+ @protected
+ @static
+ **/
+ _startPolling: function (node, notifier, options) {
+ var vcData, isEditable;
+
+ if (!node.test('input,textarea,select') && !(isEditable = VC._isEditable(node))) {
+ return;
+ }
+
+ vcData = node.getData(DATA_KEY);
+
+ if (!vcData) {
+ vcData = {
+ nodeName : node.get(NODE_NAME).toLowerCase(),
+ isEditable : isEditable,
+ prevVal : isEditable ? node.getDOMNode().innerHTML : node.get(VALUE)
+ };
+
+ node.setData(DATA_KEY, vcData);
+ }
+
+ vcData.notifiers || (vcData.notifiers = {});
+
+ // Don't bother continuing if we're already polling this node, unless
+ // `options.force` is true.
+ if (vcData.interval) {
+ if (options.force) {
+ VC._stopPolling(node, notifier); // restart polling, but avoid dupe polls
+ } else {
+ vcData.notifiers[Y.stamp(notifier)] = notifier;
+ return;
+ }
+ }
+
+ // Poll for changes to the node's value. We can't rely on keyboard
+ // events for this, since the value may change due to a mouse-initiated
+ // paste event, an IME input event, or for some other reason that
+ // doesn't trigger a key event.
+ vcData.notifiers[Y.stamp(notifier)] = notifier;
+
+ vcData.interval = setInterval(function () {
+ VC._poll(node, options);
+ }, VC.POLL_INTERVAL);
+
+
+ VC._refreshTimeout(node, notifier);
+ },
+
+ /**
+ Stops polling for changes to the specified node's `value` attribute.
+
+ @method _stopPolling
+ @param {Node} node Node to stop polling on.
+ @param {SyntheticEvent.Notifier} [notifier] Notifier to remove from the
+ node. If not specified, all notifiers will be removed.
+ @protected
+ @static
+ **/
+ _stopPolling: function (node, notifier) {
+ // The node may have been destroyed, so check that it still exists
+ // before trying to get its data. Otherwise an error will occur.
+ if (!node._node) {
+ return;
+ }
+
+ var vcData = node.getData(DATA_KEY) || {};
+
+ clearInterval(vcData.interval);
+ delete vcData.interval;
+
+ VC._stopTimeout(node);
+
+ if (notifier) {
+ vcData.notifiers && delete vcData.notifiers[Y.stamp(notifier)];
+ } else {
+ vcData.notifiers = {};
+ }
+
+ },
+
+ /**
+ Clears the inactivity timeout for the specified node, if any.
+
+ @method _stopTimeout
+ @param {Node} node
+ @protected
+ @static
+ **/
+ _stopTimeout: function (node) {
+ var vcData = node.getData(DATA_KEY) || {};
+
+ clearTimeout(vcData.timeout);
+ delete vcData.timeout;
+ },
+
+ /**
+ Check to see if a node has editable content or not.
+
+ TODO: Add additional checks to get it to work for child nodes
+ that inherit "contenteditable" from parent nodes. This may be
+ too computationally intensive to be placed inside of the `_poll`
+ loop, however.
+
+ @method _isEditable
+ @param {Node} node
+ @protected
+ @static
+ **/
+ _isEditable: function (node) {
+ // Performance cheat because this is used inside `_poll`
+ var domNode = node._node;
+ return domNode.contentEditable === 'true' ||
+ domNode.contentEditable === '';
+ },
+
+
+
+ // -- Protected Static Event Handlers --------------------------------------
+
+ /**
+ Stops polling when a node's blur event fires.
+
+ @method _onBlur
+ @param {EventFacade} e
+ @param {SyntheticEvent.Notifier} notifier
+ @protected
+ @static
+ **/
+ _onBlur: function (e, notifier) {
+ VC._stopPolling(e.currentTarget, notifier);
+ },
+
+ /**
+ Resets a node's history and starts polling when a focus event occurs.
+
+ @method _onFocus
+ @param {EventFacade} e
+ @param {SyntheticEvent.Notifier} notifier
+ @protected
+ @static
+ **/
+ _onFocus: function (e, notifier) {
+ var node = e.currentTarget,
+ vcData = node.getData(DATA_KEY);
+
+ if (!vcData) {
+ vcData = {
+ isEditable : VC._isEditable(node),
+ nodeName : node.get(NODE_NAME).toLowerCase()
+ };
+ node.setData(DATA_KEY, vcData);
+ }
+
+ vcData.prevVal = vcData.isEditable ? node.getDOMNode().innerHTML : node.get(VALUE);
+
+ VC._startPolling(node, notifier, {e: e});
+ },
+
+ /**
+ Starts polling when a node receives a keyDown event.
+
+ @method _onKeyDown
+ @param {EventFacade} e
+ @param {SyntheticEvent.Notifier} notifier
+ @protected
+ @static
+ **/
+ _onKeyDown: function (e, notifier) {
+ VC._startPolling(e.currentTarget, notifier, {e: e});
+ },
+
+ /**
+ Starts polling when an IME-related keyUp event occurs on a node.
+
+ @method _onKeyUp
+ @param {EventFacade} e
+ @param {SyntheticEvent.Notifier} notifier
+ @protected
+ @static
+ **/
+ _onKeyUp: function (e, notifier) {
+ // These charCodes indicate that an IME has started. We'll restart
+ // polling and give the IME up to 10 seconds (by default) to finish.
+ if (e.charCode === 229 || e.charCode === 197) {
+ VC._startPolling(e.currentTarget, notifier, {
+ e : e,
+ force: true
+ });
+ }
+ },
+
+ /**
+ Starts polling when a node receives a mouseDown event.
+
+ @method _onMouseDown
+ @param {EventFacade} e
+ @param {SyntheticEvent.Notifier} notifier
+ @protected
+ @static
+ **/
+ _onMouseDown: function (e, notifier) {
+ VC._startPolling(e.currentTarget, notifier, {e: e});
+ },
+
+ /**
+ Called when the `valuechange` event receives a new subscriber.
+
+ Child nodes that aren't initially available when this subscription is
+ called will still fire the `valuechange` event after their data is
+ collected when the delegated `focus` event is captured. This includes
+ elements that haven't been inserted into the DOM yet, as well as
+ elements that aren't initially `contenteditable`.
+
+ @method _onSubscribe
+ @param {Node} node
+ @param {Subscription} sub
+ @param {SyntheticEvent.Notifier} notifier
+ @param {Function|String} [filter] Filter function or selector string. Only
+ provided for delegate subscriptions.
+ @protected
+ @static
+ **/
+ _onSubscribe: function (node, sub, notifier, filter) {
+ var _valuechange, callbacks, isEditable, inputNodes, editableNodes;
+
+ callbacks = {
+ blur : VC._onBlur,
+ focus : VC._onFocus,
+ keydown : VC._onKeyDown,
+ keyup : VC._onKeyUp,
+ mousedown: VC._onMouseDown
+ };
+
+ // Store a utility object on the notifier to hold stuff that needs to be
+ // passed around to trigger event handlers, polling handlers, etc.
+ _valuechange = notifier._valuechange = {};
+
+ if (filter) {
+ // If a filter is provided, then this is a delegated subscription.
+ _valuechange.delegated = true;
+
+ // Add a function to the notifier that we can use to find all
+ // nodes that pass the delegate filter.
+ _valuechange.getNodes = function () {
+ inputNodes = node.all('input,textarea,select').filter(filter);
+ editableNodes = node.all('[contenteditable="true"],[contenteditable=""]').filter(filter);
+
+ return inputNodes.concat(editableNodes);
+ };
+
+ // Store the initial values for each descendant of the container
+ // node that passes the delegate filter.
+ _valuechange.getNodes().each(function (child) {
+ if (!child.getData(DATA_KEY)) {
+ child.setData(DATA_KEY, {
+ nodeName : child.get(NODE_NAME).toLowerCase(),
+ isEditable : VC._isEditable(child),
+ prevVal : isEditable ? child.getDOMNode().innerHTML : child.get(VALUE)
+ });
+ }
+ });
+
+ notifier._handles = Y.delegate(callbacks, node, filter, null,
+ notifier);
+ } else {
+ isEditable = VC._isEditable(node);
+ // This is a normal (non-delegated) event subscription.
+ if (!node.test('input,textarea,select') && !isEditable) {
+ return;
+ }
+
+ if (!node.getData(DATA_KEY)) {
+ node.setData(DATA_KEY, {
+ nodeName : node.get(NODE_NAME).toLowerCase(),
+ isEditable : isEditable,
+ prevVal : isEditable ? node.getDOMNode().innerHTML : node.get(VALUE)
+ });
+ }
+
+ notifier._handles = node.on(callbacks, null, null, notifier);
+ }
+ },
+
+ /**
+ Called when the `valuechange` event loses a subscriber.
+
+ @method _onUnsubscribe
+ @param {Node} node
+ @param {Subscription} subscription
+ @param {SyntheticEvent.Notifier} notifier
+ @protected
+ @static
+ **/
+ _onUnsubscribe: function (node, subscription, notifier) {
+ var _valuechange = notifier._valuechange;
+
+ notifier._handles && notifier._handles.detach();
+
+ if (_valuechange.delegated) {
+ _valuechange.getNodes().each(function (child) {
+ VC._stopPolling(child, notifier);
+ });
+ } else {
+ VC._stopPolling(node, notifier);
+ }
+ }
+};
+
+/**
+Synthetic event that fires when the `value` property of an `<input>`,
+`<textarea>`, `<select>`, or `[contenteditable="true"]` node changes as a
+result of a user-initiated keystroke, mouse operation, or input method
+editor (IME) input event.
+
+Unlike the `onchange` event, this event fires when the value actually changes
+and not when the element loses focus. This event also reports IME and
+multi-stroke input more reliably than `oninput` or the various key events across
+browsers.
+
+For performance reasons, only focused nodes are monitored for changes, so
+programmatic value changes on nodes that don't have focus won't be detected.
+
+@example
+
+ YUI().use('event-valuechange', function (Y) {
+ Y.one('#my-input').on('valuechange', function (e) {
+ });
+ });
+
+@event valuechange
+@param {String} prevVal Previous value prior to the latest change.
+@param {String} newVal New value after the latest change.
+@for YUI
+**/
+
+config = {
+ detach: VC._onUnsubscribe,
+ on : VC._onSubscribe,
+
+ delegate : VC._onSubscribe,
+ detachDelegate: VC._onUnsubscribe,
+
+ publishConfig: {
+ emitFacade: true
+ }
+};
+
+Y.Event.define('valuechange', config);
+Y.Event.define('valueChange', config); // deprecated, but supported for backcompat
+
+Y.ValueChange = VC;
+
+
+}, '@VERSION@', {"requires": ["event-focus", "event-synthetic"]});