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Jonathan Mak
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Jun 26, 2021
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YUI.add('align-plugin', function (Y, NAME) { | ||
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/** | ||
* Provides advanced positioning support for Node via a Plugin | ||
* for centering and alignment. | ||
* @module align-plugin | ||
*/ | ||
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var OFFSET_WIDTH = 'offsetWidth', | ||
OFFSET_HEIGHT = 'offsetHeight', | ||
undefined = undefined; | ||
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/** | ||
* Node plugin which can be used to align a node with another node, | ||
* region, or the viewport. | ||
* | ||
* @class Plugin.Align | ||
* @param {Object} User configuration object | ||
*/ | ||
function Align(config) { | ||
if (config.host) { | ||
this._host = config.host; | ||
} | ||
} | ||
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Align.prototype = { | ||
/** | ||
* Aligns node with a point on another node or region. | ||
* Possible alignment points are: | ||
* <dl> | ||
* <dt>tl</dt> | ||
* <dd>top left</dd> | ||
* <dt>tr</dt> | ||
* <dd>top right</dd> | ||
* <dt>bl</dt> | ||
* <dd>bottom left</dd> | ||
* <dt>br</dt> | ||
* <dd>bottom right</dd> | ||
* <dt>tc</dt> | ||
* <dd>top center</dd> | ||
* <dt>bc</dt> | ||
* <dd>bottom center</dd> | ||
* <dt>rc</dt> | ||
* <dd>right center</dd> | ||
* <dt>lc</dt> | ||
* <dd>left center</dd> | ||
* <dt>cc</dt> | ||
* <dd>center center</dd> | ||
* </dl> | ||
* @method to | ||
* @param region {String|Node|HTMLElement|Object} The node or | ||
* region to align with. Defaults to the viewport region. | ||
* @param regionPoint {String} The point of the region to align with. | ||
* @param point {String} The point of the node aligned to the region. | ||
* @param resize {Boolean} Whether or not the node should re-align when | ||
* the window is resized. Defaults to false. | ||
*/ | ||
to: function(region, regionPoint, point, syncOnResize) { | ||
// cache original args for syncing | ||
this._syncArgs = Y.Array(arguments); | ||
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if (region.top === undefined) { | ||
region = Y.one(region).get('region'); | ||
} | ||
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if (region) { | ||
var xy = [region.left, region.top], | ||
offxy = [region.width, region.height], | ||
points = Align.points, | ||
node = this._host, | ||
NULL = null, | ||
size = node.getAttrs([OFFSET_HEIGHT, OFFSET_WIDTH]), | ||
nodeoff = [0 - size[OFFSET_WIDTH], 0 - size[OFFSET_HEIGHT]], // reverse offsets | ||
regionFn0 = regionPoint ? points[regionPoint.charAt(0)]: NULL, | ||
regionFn1 = (regionPoint && regionPoint !== 'cc') ? points[regionPoint.charAt(1)] : NULL, | ||
nodeFn0 = point ? points[point.charAt(0)] : NULL, | ||
nodeFn1 = (point && point !== 'cc') ? points[point.charAt(1)] : NULL; | ||
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if (regionFn0) { | ||
xy = regionFn0(xy, offxy, regionPoint); | ||
} | ||
if (regionFn1) { | ||
xy = regionFn1(xy, offxy, regionPoint); | ||
} | ||
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if (nodeFn0) { | ||
xy = nodeFn0(xy, nodeoff, point); | ||
} | ||
if (nodeFn1) { | ||
xy = nodeFn1(xy, nodeoff, point); | ||
} | ||
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if (xy && node) { | ||
node.setXY(xy); | ||
} | ||
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this._resize(syncOnResize); | ||
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} | ||
return this; | ||
}, | ||
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sync: function() { | ||
this.to.apply(this, this._syncArgs); | ||
return this; | ||
}, | ||
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_resize: function(add) { | ||
var handle = this._handle; | ||
if (add && !handle) { | ||
this._handle = Y.on('resize', this._onresize, window, this); | ||
} else if (!add && handle) { | ||
handle.detach(); | ||
} | ||
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}, | ||
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_onresize: function() { | ||
var self = this; | ||
setTimeout(function() { // for performance | ||
self.sync(); | ||
}); | ||
}, | ||
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/** | ||
* Aligns the center of a node to the center of another node or region. | ||
* @method center | ||
* @param region {Node|HTMLElement|Object} optional The node or | ||
* region to align with. Defaults to the viewport region. | ||
* the window is resized. If centering to viewport, this defaults | ||
* to true, otherwise default is false. | ||
*/ | ||
center: function(region, resize) { | ||
this.to(region, 'cc', 'cc', resize); | ||
return this; | ||
}, | ||
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/** | ||
* Removes the resize handler, if any. This is called automatically | ||
* when unplugged from the host node. | ||
* @method destroy | ||
*/ | ||
destroy: function() { | ||
var handle = this._handle; | ||
if (handle) { | ||
handle.detach(); | ||
} | ||
} | ||
}; | ||
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Align.points = { | ||
't': function(xy, off) { | ||
return xy; | ||
}, | ||
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'r': function(xy, off) { | ||
return [xy[0] + off[0], xy[1]]; | ||
}, | ||
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'b': function(xy, off) { | ||
return [xy[0], xy[1] + off[1]]; | ||
}, | ||
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'l': function(xy, off) { | ||
return xy; | ||
}, | ||
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'c': function(xy, off, point) { | ||
var axis = (point[0] === 't' || point[0] === 'b') ? 0 : 1, | ||
ret, val; | ||
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if (point === 'cc') { | ||
ret = [xy[0] + off[0] / 2, xy[1] + off[1] / 2]; | ||
} else { | ||
val = xy[axis] + off[axis] / 2; | ||
ret = (axis) ? [xy[0], val] : [val, xy[1]]; | ||
} | ||
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return ret; | ||
} | ||
}; | ||
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Align.NAME = 'Align'; | ||
Align.NS = 'align'; | ||
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Align.prototype.constructor = Align; | ||
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Y.namespace('Plugin'); | ||
Y.Plugin.Align = Align; | ||
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}, 'patched-v3.18.1', {"requires": ["node-screen", "node-pluginhost"]}); |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,193 @@ | ||
YUI.add('align-plugin', function (Y, NAME) { | ||
|
||
/** | ||
* Provides advanced positioning support for Node via a Plugin | ||
* for centering and alignment. | ||
* @module align-plugin | ||
*/ | ||
|
||
var OFFSET_WIDTH = 'offsetWidth', | ||
OFFSET_HEIGHT = 'offsetHeight', | ||
undefined = undefined; | ||
|
||
/** | ||
* Node plugin which can be used to align a node with another node, | ||
* region, or the viewport. | ||
* | ||
* @class Plugin.Align | ||
* @param {Object} User configuration object | ||
*/ | ||
function Align(config) { | ||
if (config.host) { | ||
this._host = config.host; | ||
} | ||
} | ||
|
||
Align.prototype = { | ||
/** | ||
* Aligns node with a point on another node or region. | ||
* Possible alignment points are: | ||
* <dl> | ||
* <dt>tl</dt> | ||
* <dd>top left</dd> | ||
* <dt>tr</dt> | ||
* <dd>top right</dd> | ||
* <dt>bl</dt> | ||
* <dd>bottom left</dd> | ||
* <dt>br</dt> | ||
* <dd>bottom right</dd> | ||
* <dt>tc</dt> | ||
* <dd>top center</dd> | ||
* <dt>bc</dt> | ||
* <dd>bottom center</dd> | ||
* <dt>rc</dt> | ||
* <dd>right center</dd> | ||
* <dt>lc</dt> | ||
* <dd>left center</dd> | ||
* <dt>cc</dt> | ||
* <dd>center center</dd> | ||
* </dl> | ||
* @method to | ||
* @param region {String|Node|HTMLElement|Object} The node or | ||
* region to align with. Defaults to the viewport region. | ||
* @param regionPoint {String} The point of the region to align with. | ||
* @param point {String} The point of the node aligned to the region. | ||
* @param resize {Boolean} Whether or not the node should re-align when | ||
* the window is resized. Defaults to false. | ||
*/ | ||
to: function(region, regionPoint, point, syncOnResize) { | ||
// cache original args for syncing | ||
this._syncArgs = Y.Array(arguments); | ||
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if (region.top === undefined) { | ||
region = Y.one(region).get('region'); | ||
} | ||
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if (region) { | ||
var xy = [region.left, region.top], | ||
offxy = [region.width, region.height], | ||
points = Align.points, | ||
node = this._host, | ||
NULL = null, | ||
size = node.getAttrs([OFFSET_HEIGHT, OFFSET_WIDTH]), | ||
nodeoff = [0 - size[OFFSET_WIDTH], 0 - size[OFFSET_HEIGHT]], // reverse offsets | ||
regionFn0 = regionPoint ? points[regionPoint.charAt(0)]: NULL, | ||
regionFn1 = (regionPoint && regionPoint !== 'cc') ? points[regionPoint.charAt(1)] : NULL, | ||
nodeFn0 = point ? points[point.charAt(0)] : NULL, | ||
nodeFn1 = (point && point !== 'cc') ? points[point.charAt(1)] : NULL; | ||
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if (regionFn0) { | ||
xy = regionFn0(xy, offxy, regionPoint); | ||
} | ||
if (regionFn1) { | ||
xy = regionFn1(xy, offxy, regionPoint); | ||
} | ||
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if (nodeFn0) { | ||
xy = nodeFn0(xy, nodeoff, point); | ||
} | ||
if (nodeFn1) { | ||
xy = nodeFn1(xy, nodeoff, point); | ||
} | ||
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if (xy && node) { | ||
node.setXY(xy); | ||
} | ||
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this._resize(syncOnResize); | ||
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} | ||
return this; | ||
}, | ||
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sync: function() { | ||
this.to.apply(this, this._syncArgs); | ||
return this; | ||
}, | ||
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_resize: function(add) { | ||
var handle = this._handle; | ||
if (add && !handle) { | ||
this._handle = Y.on('resize', this._onresize, window, this); | ||
} else if (!add && handle) { | ||
handle.detach(); | ||
} | ||
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}, | ||
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_onresize: function() { | ||
var self = this; | ||
setTimeout(function() { // for performance | ||
self.sync(); | ||
}); | ||
}, | ||
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/** | ||
* Aligns the center of a node to the center of another node or region. | ||
* @method center | ||
* @param region {Node|HTMLElement|Object} optional The node or | ||
* region to align with. Defaults to the viewport region. | ||
* the window is resized. If centering to viewport, this defaults | ||
* to true, otherwise default is false. | ||
*/ | ||
center: function(region, resize) { | ||
this.to(region, 'cc', 'cc', resize); | ||
return this; | ||
}, | ||
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/** | ||
* Removes the resize handler, if any. This is called automatically | ||
* when unplugged from the host node. | ||
* @method destroy | ||
*/ | ||
destroy: function() { | ||
var handle = this._handle; | ||
if (handle) { | ||
handle.detach(); | ||
} | ||
} | ||
}; | ||
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Align.points = { | ||
't': function(xy, off) { | ||
return xy; | ||
}, | ||
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'r': function(xy, off) { | ||
return [xy[0] + off[0], xy[1]]; | ||
}, | ||
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'b': function(xy, off) { | ||
return [xy[0], xy[1] + off[1]]; | ||
}, | ||
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'l': function(xy, off) { | ||
return xy; | ||
}, | ||
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'c': function(xy, off, point) { | ||
var axis = (point[0] === 't' || point[0] === 'b') ? 0 : 1, | ||
ret, val; | ||
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if (point === 'cc') { | ||
ret = [xy[0] + off[0] / 2, xy[1] + off[1] / 2]; | ||
} else { | ||
val = xy[axis] + off[axis] / 2; | ||
ret = (axis) ? [xy[0], val] : [val, xy[1]]; | ||
} | ||
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return ret; | ||
} | ||
}; | ||
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Align.NAME = 'Align'; | ||
Align.NS = 'align'; | ||
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Align.prototype.constructor = Align; | ||
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Y.namespace('Plugin'); | ||
Y.Plugin.Align = Align; | ||
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}, 'patched-v3.18.1', {"requires": ["node-screen", "node-pluginhost"]}); |
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