1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 | 1× 1× 13× 13× 13× 1× 15× 15× 3× 3× 3× 3× 3× 12× 14× 14× 14× 22× 22× 22× 14× 14× 14× 14× 15× 1× 3× 3× 1× 3× 3× 1× 1× 32× 1× 7× 7× 7× 7× 1× 1× 18× 18× 1× 1× 2× 17× 17× 17× 17× 17× 17× 17× 17× 7× 7× 7× 7× 7× 7× 7× 7× 7× 1× 1× 1× 7× 7× 7× 7× 10× 14× 14× 14× 14× 14× 10× 17× 1× 10× 15× 15× 14× 14× 14× 14× 12× 11× 11× 1× 1× 12× 11× 14× 4× 4× 14× 1× 12× 1× 1× 1× 1× 2× 1× 1× 1× | /* tslint:disable:no-string-literal */ "use strict"; /** An instance of EventGroup allows anything with a handle to it to trigger events on it. * If the target is an HTMLElement, the event will be attached to the element and can be * triggered as usual (like clicking for onclick). * The event can be triggered by calling EventGroup.raise() here. If the target is an * HTMLElement, the event gets raised and is handled by the browser. Otherwise, it gets * handled here in EventGroup, and the handler is called in the context of the parent * (which is passed in in the constructor). */ var EventGroup = (function () { /** parent: the context in which events attached to non-HTMLElements are called */ function EventGroup(parent) { this._id = EventGroup._uniqueId++; this._parent = parent; this._eventRecords = []; } /** For IE8, bubbleEvent is ignored here and must be dealt with by the handler. * Events raised here by default have bubbling set to false and cancelable set to true. * This applies also to built-in events being raised manually here on HTMLElements, * which may lead to unexpected behavior if it differs from the defaults. */ EventGroup.raise = function (target, eventName, eventArgs, bubbleEvent) { var retVal; if (EventGroup._isElement(target)) { Eif (document.createEvent) { var ev = document.createEvent('HTMLEvents'); ev.initEvent(eventName, bubbleEvent, true); ev['args'] = eventArgs; retVal = target.dispatchEvent(ev); } else if (document['createEventObject']) { var evObj = document['createEventObject'](eventArgs); // cannot set cancelBubble on evObj, fireEvent will overwrite it target.fireEvent('on' + eventName, evObj); } } else { while (target && retVal !== false) { var events = target.__events__; var eventRecords = events ? events[eventName] : null; for (var id in eventRecords) { Eif (eventRecords.hasOwnProperty(id)) { var eventRecordList = eventRecords[id]; for (var listIndex = 0; retVal !== false && listIndex < eventRecordList.length; listIndex++) { var record = eventRecordList[listIndex]; Eif (record.objectCallback) { retVal = record.objectCallback.call(record.parent, eventArgs); } } } } // If the target has a parent, bubble the event up. target = bubbleEvent ? target.parent : null; } } return retVal; }; EventGroup.isObserved = function (target, eventName) { var events = target && target.__events__; return !!events && !!events[eventName]; }; /** Check to see if the target has declared support of the given event. */ EventGroup.isDeclared = function (target, eventName) { var declaredEvents = target && target.__declaredEvents; return !!declaredEvents && !!declaredEvents[eventName]; }; EventGroup.stopPropagation = function (event) { if (event.stopPropagation) { event.stopPropagation(); } else { event.cancelBubble = true; } }; EventGroup._isElement = function (target) { return !!target && (target instanceof HTMLElement || target.addEventListener); }; EventGroup.prototype.dispose = function () { Eif (!this._isDisposed) { this._isDisposed = true; this.off(); this._parent = null; } }; /** On the target, attach a set of events, where the events object is a name to function mapping. */ EventGroup.prototype.onAll = function (target, events, useCapture) { for (var eventName in events) { if (events.hasOwnProperty(eventName)) { this.on(target, eventName, events[eventName], useCapture); } } }; /** On the target, attach an event whose handler will be called in the context of the parent * of this instance of EventGroup. */ EventGroup.prototype.on = function (target, eventName, callback, useCapture) { var _this = this; if (eventName.indexOf(',') > -1) { var events = eventName.split(/[ ,]+/); for (var i = 0; i < events.length; i++) { this.on(target, events[i], callback, useCapture); } } else { var parent_1 = this._parent; var eventRecord = { target: target, eventName: eventName, parent: parent_1, callback: callback, objectCallback: null, elementCallback: null, useCapture: useCapture }; // Initialize and wire up the record on the target, so that it can call the callback if the event fires. var events = (target.__events__ = target.__events__ || {}); events[eventName] = events[eventName] || { count: 0 }; events[eventName][this._id] = events[eventName][this._id] || []; events[eventName][this._id].push(eventRecord); events[eventName].count++; if (EventGroup._isElement(target)) { var processElementEvent = function () { var args = []; for (var _i = 0; _i < arguments.length; _i++) { args[_i - 0] = arguments[_i]; } Iif (_this._isDisposed) { return; } var result; try { result = callback.apply(parent_1, args); if (result === false && args[0] && args[0].preventDefault) { var e = args[0]; e.preventDefault(); e.cancelBubble = true; } } catch (e) { } return result; }; eventRecord.elementCallback = processElementEvent; Eif (target.addEventListener) { /* tslint:disable:ban-native-functions */ target.addEventListener(eventName, processElementEvent, useCapture); } else if (target.attachEvent) { target.attachEvent('on' + eventName, processElementEvent); } } else { var processObjectEvent = function () { var args = []; for (var _i = 0; _i < arguments.length; _i++) { args[_i - 0] = arguments[_i]; } Iif (_this._isDisposed) { return; } return callback.apply(parent_1, args); }; eventRecord.objectCallback = processObjectEvent; } // Remember the record locally, so that it can be removed. this._eventRecords.push(eventRecord); } }; EventGroup.prototype.off = function (target, eventName, callback, useCapture) { for (var i = 0; i < this._eventRecords.length; i++) { var eventRecord = this._eventRecords[i]; if ((!target || target === eventRecord.target) && (!eventName || eventName === eventRecord.eventName) && (!callback || callback === eventRecord.callback) && ((typeof useCapture !== 'boolean') || useCapture === eventRecord.useCapture)) { var events = eventRecord.target.__events__; var targetArrayLookup = events[eventRecord.eventName]; var targetArray = targetArrayLookup ? targetArrayLookup[this._id] : null; // We may have already target's entries, so check for null. if (targetArray) { if (targetArray.length === 1 || !callback) { targetArrayLookup.count -= targetArray.length; delete events[eventRecord.eventName][this._id]; } else { targetArrayLookup.count--; targetArray.splice(targetArray.indexOf(eventRecord), 1); } if (!targetArrayLookup.count) { delete events[eventRecord.eventName]; } } if (eventRecord.elementCallback) { Eif (eventRecord.target.removeEventListener) { eventRecord.target.removeEventListener(eventRecord.eventName, eventRecord.elementCallback, eventRecord.useCapture); } else if (eventRecord.target.detachEvent) { eventRecord.target.detachEvent('on' + eventRecord.eventName, eventRecord.elementCallback); } } this._eventRecords.splice(i--, 1); } } }; /** Trigger the given event in the context of this instance of EventGroup. */ EventGroup.prototype.raise = function (eventName, eventArgs, bubbleEvent) { return EventGroup.raise(this._parent, eventName, eventArgs, bubbleEvent); }; /** Declare an event as being supported by this instance of EventGroup. */ EventGroup.prototype.declare = function (event) { var declaredEvents = this._parent.__declaredEvents = this._parent.__declaredEvents || {}; Iif (typeof event === 'string') { declaredEvents[event] = true; } else { for (var i = 0; i < event.length; i++) { declaredEvents[event[i]] = true; } } }; EventGroup._uniqueId = 0; return EventGroup; }()); exports.EventGroup = EventGroup; //# sourceMappingURL=EventGroup.js.map |