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Copy pathevents.js
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308 lines (268 loc) · 9.72 KB
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/* DOM Level2 Events implemented as described here:
*
* http://www.w3.org/TR/2000/REC-DOM-Level-2-Events-20001113/events.html
*
*/
var core = require("../level1/core"),
utils = require("../utils"),
defineGetter = utils.defineGetter,
defineSetter = utils.defineSetter,
inheritFrom = utils.inheritFrom;
core.Event = function(eventType, eventInit) {
this._type = eventType || null;
if (eventInit === undefined || eventInit === null) {
eventInit = {};
}
if (typeof eventInit !== "object") {
throw new TypeError("cannot convert eventInit argument to a dictionary");
}
this._bubbles = Boolean(eventInit.bubbles);
this._cancelable = Boolean(eventInit.cancelable);
this._target = null;
this._currentTarget = null;
this._eventPhase = 0;
this._timeStamp = null;
this._stopPropagation = false;
this._canceled = false;
};
core.Event.prototype = {
initEvent: function(type, bubbles, cancelable) {
this._type = type;
this._bubbles = bubbles;
this._cancelable = cancelable;
},
preventDefault: function() {
if (this._cancelable) {
this._canceled = true;
}
},
stopPropagation: function() {
this._stopPropagation = true;
},
NONE : 0,
CAPTURING_PHASE : 1,
AT_TARGET : 2,
BUBBLING_PHASE : 3,
get type() { return this._type; },
get bubbles() { return this._bubbles; },
get cancelable() { return this._cancelable; },
get target() { return this._target; },
get currentTarget() { return this._currentTarget; },
get eventPhase() { return this._eventPhase; },
get timeStamp() { return this._timeStamp; },
get defaultPrevented() { return this._canceled; }
};
core.UIEvent = function(eventType, eventInit) {
core.Event.call(this, eventType, eventInit);
this.view = null;
this.detail = null;
};
inheritFrom(core.Event, core.UIEvent, {
initUIEvent: function(type, bubbles, cancelable, view, detail) {
this.initEvent(type, bubbles, cancelable);
this.view = view;
this.detail = detail;
},
});
core.MouseEvent = function(eventType, eventInit) {
core.UIEvent.call(this, eventType, eventInit);
this.screenX = null;
this.screenY = null;
this.clientX = null;
this.clientY = null;
this.ctrlKey = null;
this.shiftKey = null;
this.altKey = null;
this.metaKey = null;
this.button = null;
this.relatedTarget = null;
};
inheritFrom(core.UIEvent, core.MouseEvent, {
initMouseEvent: function(type,
bubbles,
cancelable,
view,
detail,
screenX,
screenY,
clientX,
clientY,
ctrlKey,
altKey,
shiftKey,
metaKey,
button,
relatedTarget) {
this.initUIEvent(type, bubbles, cancelable, view, detail);
this.screenX = screenX
8000
this.screenY = screenY
this.clientX = clientX
this.clientY = clientY
this.ctrlKey = ctrlKey
this.shiftKey = shiftKey
this.altKey = altKey
this.metaKey = metaKey
this.button = button
this.relatedTarget = relatedTarget
}
});
core.MutationEvent = function(eventType, eventInit) {
core.Event.call(this, eventType, eventInit);
this.relatedNode = null;
this.prevValue = null;
this.newValue = null;
this.attrName = null;
this.attrChange = null;
};
inheritFrom(core.Event, core.MutationEvent, {
initMutationEvent: function(type,
bubbles,
cancelable,
relatedNode,
prevValue,
newValue,
attrName,
attrChange) {
this.initEvent(type, bubbles, cancelable);
this.relatedNode = relatedNode;
this.prevValue = prevValue;
this.newValue = newValue;
this.attrName = attrName;
this.attrChange = attrChange;
},
MODIFICATION : 1,
ADDITION : 2,
REMOVAL : 3
});
core.EventTarget = require('../events/EventTarget');
// Reinherit class heirarchy with EventTarget at its root
inheritFrom(core.EventTarget, core.Node, core.Node.prototype);
// Node
inheritFrom(core.Node, core.Attr, core.Attr.prototype);
inheritFrom(core.Node, core.Document, core.Document.prototype);
inheritFrom(core.Node, core.DocumentFragment, core.DocumentFragment.prototype);
inheritFrom(core.Node, core.Element, core.Element.prototype);
function getDocument(el) {
return el.nodeType == core.Node.DOCUMENT_NODE ? el : el._ownerDocument;
}
function mutationEventsEnabled(el) {
return el.nodeType != core.Node.ATTRIBUTE_NODE &&
getDocument(el).implementation._hasFeature('MutationEvents');
}
var insertBefore_super = core.Node.prototype.insertBefore;
core.Node.prototype.insertBefore = function(newChild, refChild) {
var ret = insertBefore_super.apply(this, arguments);
if (mutationEventsEnabled(this)) {
var doc = getDocument(this),
ev = doc.createEvent("MutationEvents");
ev.initMutationEvent("DOMNodeInserted", true, false, this, null, null, null, null);
newChild.dispatchEvent(ev);
if (this.nodeType == core.Node.DOCUMENT_NODE || this._attachedToDocument) {
ev = doc.createEvent("MutationEvents");
ev.initMutationEvent("DOMNodeInsertedIntoDocument", false, false, null, null, null, null, null);
core.visitTree(newChild, function(el) {
if (el.nodeType == core.Node.ELEMENT_NODE) {
el.dispatchEvent(ev);
el._attachedToDocument = true;
}
});
}
}
return ret;
};
var removeChild_super = core.Node.prototype.removeChild;
core.Node.prototype.removeChild = function (oldChild) {
if (mutationEventsEnabled(this)) {
var doc = getDocument(this),
ev = doc.createEvent("MutationEvents");
ev.initMutationEvent("DOMNodeRemoved", true, false, this, null, null, null, null);
oldChild.dispatchEvent(ev);
ev = doc.createEvent("MutationEvents");
ev.initMutationEvent("DOMNodeRemovedFromDocument", false, false, null, null, null, null, null);
core.visitTree(oldChild, function(el) {
if (el.nodeType == core.Node.ELEMENT_NODE) {
el.dispatchEvent(ev);
el._attachedToDocument = false;
}
});
}
return removeChild_super.apply(this, arguments);
};
function dispatchAttrEvent(doc, target, prevVal, newVal, attrName, attrChange) {
if (!newVal || newVal != prevVal) {
var ev = doc.createEvent("MutationEvents");
ev.initMutationEvent("DOMAttrModified", true, false, target, prevVal,
newVal, attrName, attrChange);
target.dispatchEvent(ev);
}
}
function attrNodeInterceptor(_super, change) {
return function(node) {
var target = this._parentNode,
prev = _super.apply(this, arguments);
if (mutationEventsEnabled(target)) {
dispatchAttrEvent(target._ownerDocument,
target,
prev && prev.value || null,
change == 'ADDITION' ? node.value : null,
prev && prev.name || node.name,
core.MutationEvent.prototype[change]);
}
return prev;
};
}
function attrInterceptor(_super, ns) {
return function(localName, value, _name, _prefix, _namespace) {
var target = this._parentNode,
namespace = _namespace; // do not reassign parameters when using "arguments" (performance)
if (!mutationEventsEnabled(target)) {
_super.apply(this, arguments);
return;
}
if (namespace === undefined) {
namespace = null;
}
var prev =
ns ? this.$getNode(namespace, localName) : this.$getNoNS(localName);
var prevVal = prev && prev.value || null;
_super.apply(this, arguments);
var node = ns ? this.$getNode(namespace, localName):
this.$getNoNS(localName);
dispatchAttrEvent(target._ownerDocument,
target,
prevVal,
node.value,
node.name,
core.MutationEvent.prototype.ADDITION);
};
}
core.AttributeList.prototype.$removeNode = attrNodeInterceptor(core.AttributeList.prototype.$removeNode, 'REMOVAL');
core.AttributeList.prototype.$setNode = attrNodeInterceptor(core.AttributeList.prototype.$setNode, 'ADDITION');
core.AttributeList.prototype.$set = attrInterceptor(core.AttributeList.prototype.$set, true);
core.AttributeList.prototype.$setNoNS = attrInterceptor(core.AttributeList.prototype.$setNoNS, false);
var interfaceTable = {
event: core.Event,
events: core.Event,
htmlevents: core.Event,
mouseevent: core.MouseEvent,
mouseevents: core.MouseEvent,
uievent: core.UIEvent,
uievents: core.UIEvent,
// alias unimplemented interfaces to Event
customevent: core.Event, // CustomEvent
keyboardevent: core.Event, // KeyboardEvent
keyevents: core.Event, // KeyboardEvent
messageevent: core.Event, // MessageEvent
touchevent: core.Event, // TouchEvent
// old, not part of spec anymore
mutationevents: core.MutationEvent
};
core.Document.prototype.createEvent = function (type) {
var typeLower = type.toLowerCase();
var Constructor = interfaceTable[typeLower] || null;
if (!Constructor) {
throw new core.DOMException(core.DOMException.NOT_SUPPORTED_ERR,
"The provided event type (\"" + type + "\") is invalid");
}
return new Constructor("");
};