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fin-hypergrid.dev.html
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<!--
The OpenFin Hypergrid is a high performant canvas based general grid control. It is implemented as a Polymer HTML5 web-component. See [Polymer](https://www.polymer-project.org/) and [Web Components](http://www.w3.org/TR/components-intro/).
<br>
### Openfin polymerized hypergrid Demo
To see the "pink" demo
- see the [github pages hosted deplyment](http://openfin.github.io/fin-hypergrid/components/fin-hypergrid/demo.html) or
- run the [openfin installer](https://dl.openfin.co/services/download?fileName=hypergrid-demo-installer&config=http://openfin.github.io/fin-hypergrid/components/fin-hypergrid/demo.json)
### The Hypergrid is dependent on several other OpenFin projects
- [fin-canvas](http://stevewirts.github.io/fin-canvas/components/fin-canvas/): a wrapper to provide a simpler interface to the HTML5 canvas component
- [fin-rectangle](http://stevewirts.github.io/fin-rectangle/components/fin-rectangle/): a small library providing Point and Rectangle objects
- [fin-vampire-bar](http://datamadic.github.io/fin-vampire-bar/components/fin-vampire-bar/): a web-component based general scroll bar control
### Pluggable Grid Behaviors
The Hypergrid design makes no assumptions about the data you wish to view which allows for external data sources and external manipulation and analytics. Manipulations such as sorting, aggregation, and grouping can be achieved using best of breed high-performant real time tools designed for such purposes. All the code that impacts these operations has been factored into an Object called [PluggableGridBehavior](index.html#fin-hypergrid-behavior-default). A PluggableGridBehavior can be thought of as a traditional tablemodel but with a little more responsibility. There are Three example PluggableGridBehaviors provided, the base or DefaultGridBehavior, a QGridBehavior, and an InMemoryGridBehavior.
@group OpenFin hypergrid
@element fin-hypergrid
@homepage http://github.com/openfin/fin-hypergrid
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* @license
* Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
* This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
* The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
* The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
* Code distributed by Google as part of the polymer project is also
* subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
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}
function rule(v) {
return '{ -ms-touch-action: ' + v + '; touch-action: ' + v + ';}';
}
var attrib2css = [
'none',
'auto',
'pan-x',
'pan-y',
{
rule: 'pan-x pan-y',
selectors: [
'pan-x pan-y',
'pan-y pan-x'
]
},
'manipulation'
];
var styles = '';
// only install stylesheet if the browser has touch action support
var hasTouchAction = typeof document.head.style.touchAction === 'string';
// only add shadow selectors if shadowdom is supported
var hasShadowRoot = !window.ShadowDOMPolyfill && document.head.createShadowRoot;
if (hasTouchAction) {
attrib2css.forEach(function(r) {
if (String(r) === r) {
styles += selector(r) + rule(r) + '\n';
if (hasShadowRoot) {
styles += shadowSelector(r) + rule(r) + '\n';
}
} else {
styles += r.selectors.map(selector) + rule(r.rule) + '\n';
if (hasShadowRoot) {
styles += r.selectors.map(shadowSelector) + rule(r.rule) + '\n';
}
}
});
var el = document.createElement('style');
el.textContent = styles;
document.head.appendChild(el);
}
})();
/**
* This is the constructor for new PointerEvents.
*
* New Pointer Events must be given a type, and an optional dictionary of
* initialization properties.
*
* Due to certain platform requirements, events returned from the constructor
* identify as MouseEvents.
*
* @constructor
* @param {String} inType The type of the event to create.
* @param {Object} [inDict] An optional dictionary of initial event properties.
* @return {Event} A new PointerEvent of type `inType` and initialized with properties from `inDict`.
*/
(function(scope) {
var MOUSE_PROPS = [
'bubbles',
'cancelable',
'view',
'detail',
'screenX',
'screenY',
'clientX',
'clientY',
'ctrlKey',
'altKey',
'shiftKey',
'metaKey',
'button',
'relatedTarget',
'pageX',
'pageY'
];
var MOUSE_DEFAULTS = [
false,
false,
null,
null,
0,
0,
0,
0,
false,
false,
false,
false,
0,
null,
0,
0
];
var NOP_FACTORY = function(){ return function(){}; };
var eventFactory = {
// TODO(dfreedm): this is overridden by tap recognizer, needs review
preventTap: NOP_FACTORY,
makeBaseEvent: function(inType, inDict) {
var e = document.createEvent('Event');
e.initEvent(inType, inDict.bubbles || false, inDict.cancelable || false);
e.preventTap = eventFactory.preventTap(e);
return e;
},
makeGestureEvent: function(inType, inDict) {
inDict = inDict || Object.create(null);
var e = this.makeBaseEvent(inType, inDict);
for (var i = 0, keys = Object.keys(inDict), k; i < keys.length; i++) {
k = keys[i];
if( k !== 'bubbles' && k !== 'cancelable' ) {
e[k] = inDict[k];
}
}
return e;
},
makePointerEvent: function(inType, inDict) {
inDict = inDict || Object.create(null);
var e = this.makeBaseEvent(inType, inDict);
// define inherited MouseEvent properties
for(var i = 2, p; i < MOUSE_PROPS.length; i++) {
p = MOUSE_PROPS[i];
e[p] = inDict[p] || MOUSE_DEFAULTS[i];
}
e.buttons = inDict.buttons || 0;
// Spec requires that pointers without pressure specified use 0.5 for down
// state and 0 for up state.
var pressure = 0;
if (inDict.pressure) {
pressure = inDict.pressure;
} else {
pressure = e.buttons ? 0.5 : 0;
}
// add x/y properties aliased to clientX/Y
e.x = e.clientX;
e.y = e.clientY;
// define the properties of the PointerEvent interface
e.pointerId = inDict.pointerId || 0;
e.width = inDict.width || 0;
e.height = inDict.height || 0;
e.pressure = pressure;
e.tiltX = inDict.tiltX || 0;
e.tiltY = inDict.tiltY || 0;
e.pointerType = inDict.pointerType || '';
e.hwTimestamp = inDict.hwTimestamp || 0;
e.isPrimary = inDict.isPrimary || false;
e._source = inDict._source || '';
return e;
}
};
scope.eventFactory = eventFactory;
})(window.PolymerGestures);
/**
* This module implements an map of pointer states
*/
(function(scope) {
var USE_MAP = window.Map && window.Map.prototype.forEach;
var POINTERS_FN = function(){ return this.size; };
function PointerMap() {
if (USE_MAP) {
var m = new Map();
m.pointers = POINTERS_FN;
return m;
} else {
this.keys = [];
this.values = [];
}
}
PointerMap.prototype = {
set: function(inId, inEvent) {
var i = this.keys.indexOf(inId);
if (i > -1) {
this.values[i] = inEvent;
} else {
this.keys.push(inId);
this.values.push(inEvent);
}
},
has: function(inId) {
return this.keys.indexOf(inId) > -1;
},
'delete': function(inId) {
var i = this.keys.indexOf(inId);
if (i > -1) {
this.keys.splice(i, 1);
this.values.splice(i, 1);
}
},
get: function(inId) {
var i = this.keys.indexOf(inId);
return this.values[i];
},
clear: function() {
this.keys.length = 0;
this.values.length = 0;
},
// return value, key, map
forEach: function(callback, thisArg) {
this.values.forEach(function(v, i) {
callback.call(thisArg, v, this.keys[i], this);
}, this);
},
pointers: function() {
return this.keys.length;
}
};
scope.PointerMap = PointerMap;
})(window.PolymerGestures);
(function(scope) {
var CLONE_PROPS = [
// MouseEvent
'bubbles',
'cancelable',
'view',
'detail',
'screenX',
'screenY',
'clientX',
'clientY',
'ctrlKey',
'altKey',
'shiftKey',
'metaKey',
'button',
'relatedTarget',
// DOM Level 3
'buttons',
// PointerEvent
'pointerId',
'width',
'height',
'pressure',
'tiltX',
'tiltY',
'pointerType',
'hwTimestamp',
'isPrimary',
// event instance
'type',
'target',
'currentTarget',
'which',
'pageX',
'pageY',
'timeStamp',
// gesture addons
'preventTap',
'tapPrevented',
'_source'
];
var CLONE_DEFAULTS = [
// MouseEvent
false,
false,
null,
null,
0,
0,
0,
0,
false,
false,
false,
false,
0,
null,
// DOM Level 3
0,
// PointerEvent
0,
0,
0,
0,
0,
0,
'',
0,
false,
// event instance
'',
null,
null,
0,
0,
0,
0,
function(){},
false
];
var HAS_SVG_INSTANCE = (typeof SVGElementInstance !== 'undefined');
var eventFactory = scope.eventFactory;
// set of recognizers to run for the currently handled event
var currentGestures;
/**
* This module is for normalizing events. Mouse and Touch events will be
* collected here, and fire PointerEvents that have the same semantics, no
* matter the source.
* Events fired:
* - pointerdown: a pointing is added
* - pointerup: a pointer is removed
* - pointermove: a pointer is moved
* - pointerover: a pointer crosses into an element
* - pointerout: a pointer leaves an element
* - pointercancel: a pointer will no longer generate events
*/
var dispatcher = {
IS_IOS: false,
pointermap: new scope.PointerMap(),
requiredGestures: new scope.PointerMap(),
eventMap: Object.create(null),
// Scope objects for native events.
// This exists for ease of testing.
eventSources: Object.create(null),
eventSourceList: [],
gestures: [],
// map gesture event -> {listeners: int, index: gestures[int]}
dependencyMap: {
// make sure down and up are in the map to trigger "register"
down: {listeners: 0, index: -1},
up: {listeners: 0, index: -1}
},
gestureQueue: [],
/**
* Add a new event source that will generate pointer events.
*
* `inSource` must contain an array of event names named `events`, and
* functions with the names specified in the `events` array.
* @param {string} name A name for the event source
* @param {Object} source A new source of platform events.
*/
registerSource: function(name, source) {
var s = source;
var newEvents = s.events;
if (newEvents) {
newEvents.forEach(function(e) {
if (s[e]) {
this.eventMap[e] = s[e].bind(s);
}
}, this);
this.eventSources[name] = s;
this.eventSourceList.push(s);
}
},
registerGesture: function(name, source) {
var obj = Object.create(null);
obj.listeners = 0;
obj.index = this.gestures.length;
for (var i = 0, g; i < source.exposes.length; i++) {
g = source.exposes[i].toLowerCase();
this.dependencyMap[g] = obj;
}
this.gestures.push(source);
},
register: function(element, initial) {
var l = this.eventSourceList.length;
for (var i = 0, es; (i < l) && (es = this.eventSourceList[i]); i++) {
// call eventsource register
es.register.call(es, element, initial);
}
},
unregister: function(element) {
var l = this.eventSourceList.length;
for (var i = 0, es; (i < l) && (es = this.eventSourceList[i]); i++) {
// call eventsource register
es.unregister.call(es, element);
}
},
// EVENTS
down: function(inEvent) {
this.requiredGestures.set(inEvent.pointerId, currentGestures);
this.fireEvent('down', inEvent);
},
move: function(inEvent) {
// pipe move events into gesture queue directly
inEvent.type = 'move';
this.fillGestureQueue(inEvent);
},
up: function(inEvent) {
this.fireEvent('up', inEvent);
this.requiredGestures.delete(inEvent.pointerId);
},
cancel: function(inEvent) {
inEvent.tapPrevented = true;
this.fireEvent('up', inEvent);
this.requiredGestures.delete(inEvent.pointerId);
},
addGestureDependency: function(node, currentGestures) {
var gesturesWanted = node._pgEvents;
if (gesturesWanted && currentGestures) {
var gk = Object.keys(gesturesWanted);
for (var i = 0, r, ri, g; i < gk.length; i++) {
// gesture
g = gk[i];
if (gesturesWanted[g] > 0) {
// lookup gesture recognizer
r = this.dependencyMap[g];
// recognizer index
ri = r ? r.index : -1;
currentGestures[ri] = true;
}
}
}
},
// LISTENER LOGIC
eventHandler: function(inEvent) {
// This is used to prevent multiple dispatch of events from
// platform events. This can happen when two elements in different scopes
// are set up to create pointer events, which is relevant to Shadow DOM.
var type = inEvent.type;
// only generate the list of desired events on "down"
if (type === 'touchstart' || type === 'mousedown' || type === 'pointerdown' || type === 'MSPointerDown') {
if (!inEvent._handledByPG) {
currentGestures = {};
}
// in IOS mode, there is only a listener on the document, so this is not re-entrant
if (this.IS_IOS) {
var ev = inEvent;
if (type === 'touchstart') {
var ct = inEvent.changedTouches[0];
// set up a fake event to give to the path builder
ev = {target: inEvent.target, clientX: ct.clientX, clientY: ct.clientY, path: inEvent.path};
}
// use event path if available, otherwise build a path from target finding
var nodes = inEvent.path || scope.targetFinding.path(ev);
for (var i = 0, n; i < nodes.length; i++) {
n = nodes[i];
this.addGestureDependency(n, currentGestures);
}