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<title>API: widget-position-ext Widget-PositionExt.js (YUI Library)</title> |
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<h1><a href="http://developer.yahoo.com/yui/" title="Yahoo! UI Library">Yahoo! UI Library</a></h1> |
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<h3>widget-position-ext <span class="subtitle">3.0.0b1</span></h3> |
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<a href="./index.html" title="Yahoo! UI Library">Yahoo! UI Library</a> |
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> <a href="./module_widget-position-ext.html" title="widget-position-ext">widget-position-ext</a> |
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> Widget-PositionExt.js (source view) |
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<div class="highlight" ><pre><span class="c">/**</span> |
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<span class="c"> * Provides extended/advanced XY positioning support for Widgets, through an extension.</span> |
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<span class="c"> *</span> |
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<span class="c"> * It builds on top of the widget-position module, to provide alignmentment and centering support.</span> |
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<span class="c"> * Future releases aim to add constrained and fixed positioning support.</span> |
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<span class="c"> *</span> |
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<span class="c"> * @module widget-position-ext</span> |
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<span class="c"> */</span> |
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<span class="k">var</span> <span class="nx">L</span> <span class="o">=</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">Lang</span><span class="o">,</span> |
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<span class="nx">ALIGN</span> <span class="o">=</span> <span class="s2">"align"</span><span class="o">,</span> |
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<span class="nx">BINDUI</span> <span class="o">=</span> <span class="s2">"bindUI"</span><span class="o">,</span> |
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<span class="nx">SYNCUI</span> <span class="o">=</span> <span class="s2">"syncUI"</span><span class="o">,</span> |
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<span class="nx">OFFSET_WIDTH</span> <span class="o">=</span> <span class="s2">"offsetWidth"</span><span class="o">,</span> |
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<span class="nx">OFFSET_HEIGHT</span> <span class="o">=</span> <span class="s2">"offsetHeight"</span><span class="o">,</span> |
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<span class="nx">VIEWPORT_REGION</span> <span class="o">=</span> <span class="s2">"viewportRegion"</span><span class="o">,</span> |
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<span class="nx">REGION</span> <span class="o">=</span> <span class="s2">"region"</span><span class="o">,</span> |
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<span class="nx">AlignChange</span> <span class="o">=</span> <span class="s2">"alignChange"</span><span class="o">;</span> |
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<span class="c">/**</span> |
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<span class="c"> * Widget extension, which can be used to add extended XY positioning support to the base Widget class,</span> |
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<span class="c"> * through the <a href="Base.html#method_build">Base.build</a> method. This extension requires that </span> |
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<span class="c"> * the WidgetPosition extension be added to the Widget (before WidgetPositionExt, if part of the same </span> |
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<span class="c"> * extension list passed to Base.build).</span> |
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<span class="c"> *</span> |
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<span class="c"> * @class WidgetPositionExt</span> |
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<span class="c"> * @param {Object} User configuration object</span> |
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<span class="c"> */</span> |
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<span class="k">function</span> <span class="nx">PositionExt</span><span class="o">(</span><span class="nx">config</span><span class="o">)</span> <span class="o">{</span> |
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<span class="k">if</span> <span class="o">(!</span><span class="k">this</span><span class="o">.</span><span class="nx">hasImpl</span><span class="o">(</span><span class="nx">Y</span><span class="o">.</span><span class="nx">WidgetPosition</span><span class="o">)</span> <span class="o">||</span> <span class="o">!</span><span class="k">this</span><span class="o">.</span><span class="nx">_posNode</span><span class="o">)</span> <span class="o">{</span> |
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<span class="nx">Y</span><span class="o">.</span><span class="nx">error</span><span class="o">(</span><span class="s2">"WidgetPosition needs to be added to the Widget, before WidgetPositionExt is added"</span><span class="o">);</span> |
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<span class="o">}</span> |
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<span class="nx">Y</span><span class="o">.</span><span class="nx">after</span><span class="o">(</span><span class="k">this</span><span class="o">.</span><span class="nx">_syncUIPosExtras</span><span class="o">,</span> <span class="k">this</span><span class="o">,</span> <span class="nx">SYNCUI</span><span class="o">);</span> |
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<span class="nx">Y</span><span class="o">.</span><span class="nx">after</span><span class="o">(</span><span class="k">this</span><span class="o">.</span><span class="nx">_bindUIPosExtras</span><span class="o">,</span> <span class="k">this</span><span class="o">,</span> <span class="nx">BINDUI</span><span class="o">);</span> |
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<span class="o">}</span> |
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<span class="c">/**</span> |
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<span class="c"> * Static property used to define the default attribute </span> |
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<span class="c"> * configuration introduced by WidgetPositionExt.</span> |
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<span class="c"> * </span> |
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<span class="c"> * @property WidgetPositionExt.ATTRS</span> |
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<span class="c"> * @type Object</span> |
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<span class="c"> * @static</span> |
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<span class="c"> */</span> |
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<span class="nx">PositionExt</span><span class="o">.</span><span class="nx">ATTRS</span> <span class="o">=</span> <span class="o">{</span> |
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<span class="c">/**</span> |
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<span class="c"> * @attribute align</span> |
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<span class="c"> * @type Object</span> |
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<span class="c"> * @default null</span> |
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<span class="c"> * @desciption The align attribute is used to align a reference point on the widget, with the refernce point on another node, or the viewport. </span> |
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<span class="c"> * The object which align expects has the following properties:</span> |
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<span class="c"> * <dl></span> |
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<span class="c"> * <dt>node</dt></span> |
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<span class="c"> * <dd></span> |
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<span class="c"> * The node to which the Widget is to be aligned. If set to null, or not provided, the Widget is aligned to the viewport</span> |
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<span class="c"> * </dd></span> |
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<span class="c"> * <dt>points</dt></span> |
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<span class="c"> * <dd></span> |
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<span class="c"> * <p></span> |
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<span class="c"> * A two element array, defining the two points on the Widget and node/viewport which are to be aligned. The first element is the point on the Widget, and the second element is the point on the node/viewport.</span> |
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<span class="c"> * Supported alignment points are defined as static properties on <code>WidgetPositionExt</code>.</span> |
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<span class="c"> * </p></span> |
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<span class="c"> * <p></span> |
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<span class="c"> * e.g. <code>[WidgetPositionExt.TR, WidgetPositionExt.TL]</code> aligns the Top-Right corner of the Widget with the</span> |
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<span class="c"> * Top-Left corner of the node/viewport, and <code>[WidgetPositionExt.CC, WidgetPositionExt.TC]</code> aligns the Center of the </span> |
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<span class="c"> * Widget with the Top-Center edge of the node/viewport.</span> |
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<span class="c"> * </p></span> |
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<span class="c"> * </dd></span> |
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<span class="c"> * </dl></span> |
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<span class="c"> */</span> |
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<span class="nx">align</span><span class="o">:</span> <span class="o">{</span> |
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<span class="nx">value</span><span class="o">:</span><span class="kc">null</span> |
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<span class="o">},</span> |
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<span class="c">/**</span> |
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<span class="c"> * @attribute centered</span> |
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<span class="c"> * @type {boolean | node} </span> |
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<span class="c"> * @default false</span> |
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<span class="c"> * @description A convenience attribute, which can be used as a shortcut for the align attribute.</span> |
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<span class="c"> * If set to true, the Widget is centered in the viewport. If set to a node reference or valid selector string,</span> |
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<span class="c"> * the Widget will be centered within the node. If set the false, no center positioning is applied.</span> |
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<span class="c"> */</span> |
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<span class="nx">centered</span><span class="o">:</span> <span class="o">{</span> |
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<span class="nx">setter</span><span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">val</span><span class="o">)</span> <span class="o">{</span> |
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<span class="k">return</span> <span class="k">this</span><span class="o">.</span><span class="nx">_setAlignCenter</span><span class="o">(</span><span class="nx">val</span><span class="o">);</span> |
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<span class="o">},</span> |
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<span class="nx">value</span><span class="o">:</span><span class="kc">false</span> |
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<span class="o">}</span> |
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<span class="o">};</span> |
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<span class="c">/**</span> |
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<span class="c"> * Constant used to specify the top-left corner for alignment</span> |
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<span class="c"> * </span> |
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<span class="c"> * @property WidgetPositionExt.TL</span> |
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<span class="c"> * @type String</span> |
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<span class="c"> * @static</span> |
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<span class="c"> * @value "tl"</span> |
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<span class="c"> */</span> |
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<span class="nx">PositionExt</span><span class="o">.</span><span class="nx">TL</span> <span class="o">=</span> <span class="s2">"tl"</span><span class="o">;</span> |
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<span class="c">/**</span> |
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<span class="c"> * Constant used to specify the top-right corner for alignment</span> |
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<span class="c"> * </span> |
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<span class="c"> * @property WidgetPositionExt.TR</span> |
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<span class="c"> * @type String</span> |
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<span class="c"> * @static</span> |
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<span class="c"> * @value "tr"</span> |
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<span class="c"> */</span> |
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<span class="nx">PositionExt</span><span class="o">.</span><span class="nx">TR</span> <span class="o">=</span> <span class="s2">"tr"</span><span class="o">;</span> |
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<span class="c">/**</span> |
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<span class="c"> * Constant used to specify the bottom-left corner for alignment</span> |
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<span class="c"> * </span> |
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<span class="c"> * @property WidgetPositionExt.BL</span> |
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<span class="c"> * @type String</span> |
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<span class="c"> * @static</span> |
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<span class="c"> * @value "bl"</span> |
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<span class="c"> */</span> |
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<span class="nx">PositionExt</span><span class="o">.</span><span class="nx">BL</span> <span class="o">=</span> <span class="s2">"bl"</span><span class="o">;</span> |
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<span class="c">/**</span> |
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<span class="c"> * Constant used to specify the bottom-right corner for alignment</span> |
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<span class="c"> * </span> |
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<span class="c"> * @property WidgetPositionExt.BR</span> |
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<span class="c"> * @type String</span> |
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<span class="c"> * @static</span> |
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<span class="c"> * @value "br"</span> |
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<span class="c"> */</span> |
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<span class="nx">PositionExt</span><span class="o">.</span><span class="nx">BR</span> <span class="o">=</span> <span class="s2">"br"</span><span class="o">;</span> |
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<span class="c">/**</span> |
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<span class="c"> * Constant used to specify the top edge-center point for alignment</span> |
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<span class="c"> * </span> |
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<span class="c"> * @property WidgetPositionExt.TC</span> |
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<span class="c"> * @type String</span> |
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<span class="c"> * @static</span> |
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<span class="c"> * @value "tc"</span> |
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<span class="c"> */</span> |
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<span class="nx">PositionExt</span><span class="o">.</span><span class="nx">TC</span> <span class="o">=</span> <span class="s2">"tc"</span><span class="o">;</span> |
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<span class="c">/**</span> |
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<span class="c"> * Constant used to specify the right edge, center point for alignment</span> |
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<span class="c"> * </span> |
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<span class="c"> * @property WidgetPositionExt.RC</span> |
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<span class="c"> * @type String</span> |
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<span class="c"> * @static</span> |
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<span class="c"> * @value "rc"</span> |
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<span class="c"> */</span> |
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<span class="nx">PositionExt</span><span class="o">.</span><span class="nx">RC</span> <span class="o">=</span> <span class="s2">"rc"</span><span class="o">;</span> |
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<span class="c">/**</span> |
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<span class="c"> * Constant used to specify the bottom edge, center point for alignment</span> |
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<span class="c"> * </span> |
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<span class="c"> * @property WidgetPositionExt.BC</span> |
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<span class="c"> * @type String</span> |
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<span class="c"> * @static</span> |
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<span class="c"> * @value "bc"</span> |
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<span class="c"> */</span> |
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<span class="nx">PositionExt</span><span class="o">.</span><span class="nx">BC</span> <span class="o">=</span> <span class="s2">"bc"</span><span class="o">;</span> |
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<span class="c">/**</span> |
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<span class="c"> * Constant used to specify the left edge, center point for alignment</span> |
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<span class="c"> * </span> |
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<span class="c"> * @property WidgetPositionExt.LC</span> |
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<span class="c"> * @type String</span> |
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<span class="c"> * @static</span> |
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<span class="c"> * @value "lc"</span> |
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<span class="c"> */</span> |
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<span class="nx">PositionExt</span><span class="o">.</span><span class="nx">LC</span> <span class="o">=</span> <span class="s2">"lc"</span><span class="o">;</span> |
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<span class="c">/**</span> |
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<span class="c"> * Constant used to specify the center of widget/node/viewport for alignment</span> |
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<span class="c"> * </span> |
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<span class="c"> * @property WidgetPositionExt.CC</span> |
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<span class="c"> * @type String</span> |
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<span class="c"> * @static</span> |
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<span class="c"> * @value "cc"</span> |
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<span class="c"> */</span> |
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<span class="nx">PositionExt</span><span class="o">.</span><span class="nx">CC</span> <span class="o">=</span> <span class="s2">"cc"</span><span class="o">;</span> |
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<span class="nx">PositionExt</span><span class="o">.</span><span class="nx">prototype</span> <span class="o">=</span> <span class="o">{</span> |
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<span class="c">/**</span> |
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<span class="c"> * Synchronizes the UI to match the Widgets extended positioning state.</span> |
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<span class="c"> * This method in invoked after syncUI is invoked for the Widget class</span> |
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<span class="c"> * using YUI's aop infrastructure.</span> |
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<span class="c"> *</span> |
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<span class="c"> * @method _syncUIPosExtras</span> |
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<span class="c"> * @protected</span> |
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<span class="c"> */</span> |
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<span class="nx">_syncUIPosExtras</span> <span class="o">:</span> <span class="k">function</span><span class="o">()</span> <span class="o">{</span> |
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<span class="k">var</span> <span class="nx">align</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">ALIGN</span><span class="o">);</span> |
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<span class="k">if</span> <span class="o">(</span><span class="nx">align</span><span class="o">)</span> <span class="o">{</span> |
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<span class="k">this</span><span class="o">.</span><span class="nx">_uiSetAlign</span><span class="o">(</span><span class="nx">align</span><span class="o">.</span><span class="nx">node</span><span class="o">,</span> <span class="nx">align</span><span class="o">.</span><span class="nx">points</span><span class="o">);</span> |
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<span class="o">}</span> |
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<span class="o">},</span> |
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<span class="c">/**</span> |
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243 |
<span class="c"> * Binds event listeners responsible for updating the UI state in response to </span> |
|
|
244 |
<span class="c"> * Widget extended positioning related state changes.</span> |
|
|
245 |
<span class="c"> * <p></span> |
|
|
246 |
<span class="c"> * This method is invoked after bindUI is invoked for the Widget class</span> |
|
|
247 |
<span class="c"> * using YUI's aop infrastructure.</span> |
|
|
248 |
<span class="c"> * </p></span> |
|
|
249 |
<span class="c"> * @method _bindUIStack</span> |
|
|
250 |
<span class="c"> * @protected</span> |
|
|
251 |
<span class="c"> */</span> |
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|
252 |
<span class="nx">_bindUIPosExtras</span> <span class="o">:</span> <span class="k">function</span><span class="o">()</span> <span class="o">{</span> |
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|
253 |
<span class="k">this</span><span class="o">.</span><span class="nx">after</span><span class="o">(</span><span class="nx">AlignChange</span><span class="o">,</span> <span class="k">this</span><span class="o">.</span><span class="nx">_afterAlignChange</span><span class="o">);</span> |
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|
254 |
<span class="o">},</span> |
|
|
255 |
|
|
|
256 |
<span class="c">/**</span> |
|
|
257 |
<span class="c"> * Default setter for center attribute changes. Sets up the appropriate value, and passes </span> |
|
|
258 |
<span class="c"> * it through the to the align attribute.</span> |
|
|
259 |
<span class="c"> *</span> |
|
|
260 |
<span class="c"> * @method _setAlignCenter</span> |
|
|
261 |
<span class="c"> * @protected</span> |
|
|
262 |
<span class="c"> * @param {boolean | node} The attribute value being set. </span> |
|
|
263 |
<span class="c"> * @return {Number} The attribute value being set.</span> |
|
|
264 |
<span class="c"> */</span> |
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|
265 |
<span class="nx">_setAlignCenter</span> <span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">val</span><span class="o">)</span> <span class="o">{</span> |
|
|
266 |
<span class="k">if</span> <span class="o">(</span><span class="nx">val</span><span class="o">)</span> <span class="o">{</span> |
|
|
267 |
<span class="k">this</span><span class="o">.</span><span class="nx">set</span><span class="o">(</span><span class="nx">ALIGN</span><span class="o">,</span> <span class="o">{</span> |
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|
268 |
<span class="nx">node</span><span class="o">:</span> <span class="nx">val</span> <span class="o">===</span> <span class="kc">true</span> <span class="o">?</span> <span class="kc">null</span> <span class="o">:</span> <span class="nx">val</span><span class="o">,</span> |
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|
269 |
<span class="nx">points</span><span class="o">:</span> <span class="o">[</span><span class="nx">PositionExt</span><span class="o">.</span><span class="nx">CC</span><span class="o">,</span> <span class="nx">PositionExt</span><span class="o">.</span><span class="nx">CC</span><span class="o">]</span> |
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|
270 |
<span class="o">});</span> |
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|
271 |
<span class="o">}</span> |
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|
272 |
<span class="k">return</span> <span class="nx">val</span><span class="o">;</span> |
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|
273 |
<span class="o">},</span> |
|
|
274 |
|
|
|
275 |
<span class="c">/**</span> |
|
|
276 |
<span class="c"> * Default attribute change listener for the align attribute, responsible</span> |
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|
277 |
<span class="c"> * for updating the UI, in response to attribute changes.</span> |
|
|
278 |
<span class="c"> * </span> |
|
|
279 |
<span class="c"> * @method _afterAlignChange</span> |
|
|
280 |
<span class="c"> * @protected</span> |
|
|
281 |
<span class="c"> * @param {EventFacade} e The event facade for the attribute change</span> |
|
|
282 |
<span class="c"> */</span> |
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|
283 |
<span class="nx">_afterAlignChange</span> <span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">e</span><span class="o">)</span> <span class="o">{</span> |
|
|
284 |
<span class="k">if</span> <span class="o">(</span><span class="nx">e</span><span class="o">.</span><span class="nx">newVal</span><span class="o">)</span> <span class="o">{</span> |
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|
285 |
<span class="k">this</span><span class="o">.</span><span class="nx">_uiSetAlign</span><span class="o">(</span><span class="nx">e</span><span class="o">.</span><span class="nx">newVal</span><span class="o">.</span><span class="nx">node</span><span class="o">,</span> <span class="nx">e</span><span class="o">.</span><span class="nx">newVal</span><span class="o">.</span><span class="nx">points</span><span class="o">);</span> |
|
|
286 |
<span class="o">}</span> |
|
|
287 |
<span class="o">},</span> |
|
|
288 |
|
|
|
289 |
<span class="c">/**</span> |
|
|
290 |
<span class="c"> * Updates the UI to reflect the align value passed in (see the align attribute documentation, for the object stucture expected)</span> |
|
|
291 |
<span class="c"> * @method _uiSetAlign</span> |
|
|
292 |
<span class="c"> * @protected</span> |
|
|
293 |
<span class="c"> * @param {Node | null} The node to align to, or null to indicate the viewport</span> |
|
|
294 |
<span class="c"> */</span> |
|
|
295 |
<span class="nx">_uiSetAlign</span><span class="o">:</span> <span class="k">function</span> <span class="o">(</span><span class="nx">node</span><span class="o">,</span> <span class="nx">points</span><span class="o">)</span> <span class="o">{</span> |
|
|
296 |
|
|
|
297 |
<span class="k">if</span> <span class="o">(!</span><span class="nx">L</span><span class="o">.</span><span class="nx">isArray</span><span class="o">(</span><span class="nx">points</span><span class="o">)</span> <span class="o">||</span> <span class="nx">points</span><span class="o">.</span><span class="nx">length</span> <span class="o">!=</span> <span class="m">2</span><span class="o">)</span> <span class="o">{</span> |
|
|
298 |
<span class="nx">Y</span><span class="o">.</span><span class="nx">error</span><span class="o">(</span><span class="s2">"align: Invalid Points Arguments"</span><span class="o">);</span> |
|
|
299 |
<span class="k">return</span><span class="o">;</span> |
|
|
300 |
<span class="o">}</span> |
|
|
301 |
|
|
|
302 |
<span class="k">var</span> <span class="nx">nodeRegion</span><span class="o">,</span> <span class="nx">widgetPoint</span><span class="o">,</span> <span class="nx">nodePoint</span><span class="o">,</span> <span class="nx">xy</span><span class="o">;</span> |
|
|
303 |
|
|
|
304 |
<span class="k">if</span> <span class="o">(!</span><span class="nx">node</span><span class="o">)</span> <span class="o">{</span> |
|
|
305 |
<span class="nx">nodeRegion</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">_posNode</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">VIEWPORT_REGION</span><span class="o">);</span> |
|
|
306 |
<span class="o">}</span> <span class="k">else</span> <span class="o">{</span> |
|
|
307 |
<span class="nx">node</span> <span class="o">=</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">Node</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">node</span><span class="o">);</span> |
|
|
308 |
<span class="k">if</span> <span class="o">(</span><span class="nx">node</span><span class="o">)</span> <span class="o">{</span> |
|
|
309 |
<span class="nx">nodeRegion</span> <span class="o">=</span> <span class="nx">node</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">REGION</span><span class="o">);</span> |
|
|
310 |
<span class="o">}</span> |
|
|
311 |
<span class="o">}</span> |
|
|
312 |
|
|
|
313 |
<span class="k">if</span> <span class="o">(</span><span class="nx">nodeRegion</span><span class="o">)</span> <span class="o">{</span> |
|
|
314 |
|
|
|
315 |
<span class="c">// TODO: ViewportRegion doesn't have width/height - Workaround until normalized in Node/Dom</span> |
|
|
316 |
<span class="c"></span> <span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">width</span> <span class="o">=</span> <span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">width</span> <span class="o">||</span> <span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">right</span> <span class="o">-</span> <span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">left</span><span class="o">;</span> |
|
|
317 |
<span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">height</span> <span class="o">=</span> <span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">height</span> <span class="o">||</span> <span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">bottom</span> <span class="o">-</span> <span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">top</span><span class="o">;</span> |
|
|
318 |
|
|
|
319 |
<span class="nx">widgetPoint</span> <span class="o">=</span> <span class="nx">points</span><span class="o">[</span><span class="m">0</span><span class="o">];</span> |
|
|
320 |
<span class="nx">nodePoint</span> <span class="o">=</span> <span class="nx">points</span><span class="o">[</span><span class="m">1</span><span class="o">];</span> |
|
|
321 |
|
|
|
322 |
<span class="c">// TODO: Optimize KWeight - Would lookup table help?</span> |
|
|
323 |
<span class="c"></span> <span class="nx">switch</span> <span class="o">(</span><span class="nx">nodePoint</span><span class="o">)</span> <span class="o">{</span> |
|
|
324 |
<span class="nx">case</span> <span class="nx">PositionExt</span><span class="o">.</span><span class="nx">TL</span><span class="o">:</span> |
|
|
325 |
<span class="nx">xy</span> <span class="o">=</span> <span class="o">[</span><span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">left</span><span class="o">,</span> <span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">top</span><span class="o">];</span> |
|
|
326 |
<span class="k">break</span><span class="o">;</span> |
|
|
327 |
<span class="nx">case</span> <span class="nx">PositionExt</span><span class="o">.</span><span class="nx">TR</span><span class="o">:</span> |
|
|
328 |
<span class="nx">xy</span> <span class="o">=</span> <span class="o">[</span><span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">right</span><span class="o">,</span> <span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">top</span><span class="o">];</span> |
|
|
329 |
<span class="k">break</span><span class="o">;</span> |
|
|
330 |
<span class="nx">case</span> <span class="nx">PositionExt</span><span class="o">.</span><span class="nx">BL</span><span class="o">:</span> |
|
|
331 |
<span class="nx">xy</span> <span class="o">=</span> <span class="o">[</span><span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">left</span><span class="o">,</span> <span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">bottom</span><span class="o">];</span> |
|
|
332 |
<span class="k">break</span><span class="o">;</span> |
|
|
333 |
<span class="nx">case</span> <span class="nx">PositionExt</span><span class="o">.</span><span class="nx">BR</span><span class="o">:</span> |
|
|
334 |
<span class="nx">xy</span> <span class="o">=</span> <span class="o">[</span><span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">right</span><span class="o">,</span> <span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">bottom</span><span class="o">];</span> |
|
|
335 |
<span class="k">break</span><span class="o">;</span> |
|
|
336 |
<span class="nx">case</span> <span class="nx">PositionExt</span><span class="o">.</span><span class="nx">TC</span><span class="o">:</span> |
|
|
337 |
<span class="nx">xy</span> <span class="o">=</span> <span class="o">[</span><span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">left</span> <span class="o">+</span> <span class="nb">Math</span><span class="o">.</span><span class="nx">floor</span><span class="o">(</span><span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">width</span><span class="o">/</span><span class="m">2</span><span class="o">),</span> <span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">top</span><span class="o">];</span> |
|
|
338 |
<span class="k">break</span><span class="o">;</span> |
|
|
339 |
<span class="nx">case</span> <span class="nx">PositionExt</span><span class="o">.</span><span class="nx">BC</span><span class="o">:</span> |
|
|
340 |
<span class="nx">xy</span> <span class="o">=</span> <span class="o">[</span><span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">left</span> <span class="o">+</span> <span class="nb">Math</span><span class="o">.</span><span class="nx">floor</span><span class="o">(</span><span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">width</span><span class="o">/</span><span class="m">2</span><span class="o">),</span> <span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">bottom</span><span class="o">];</span> |
|
|
341 |
<span class="k">break</span><span class="o">;</span> |
|
|
342 |
<span class="nx">case</span> <span class="nx">PositionExt</span><span class="o">.</span><span class="nx">LC</span><span class="o">:</span> |
|
|
343 |
<span class="nx">xy</span> <span class="o">=</span> <span class="o">[</span><span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">left</span><span class="o">,</span> <span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">top</span> <span class="o">+</span> <span class="nb">Math</span><span class="o">.</span><span class="nx">floor</span><span class="o">(</span><span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">height</span><span class="o">/</span><span class="m">2</span><span class="o">)];</span> |
|
|
344 |
<span class="k">break</span><span class="o">;</span> |
|
|
345 |
<span class="nx">case</span> <span class="nx">PositionExt</span><span class="o">.</span><span class="nx">RC</span><span class="o">:</span> |
|
|
346 |
<span class="nx">xy</span> <span class="o">=</span> <span class="o">[</span><span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">right</span><span class="o">,</span> <span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">top</span> <span class="o">+</span> <span class="nb">Math</span><span class="o">.</span><span class="nx">floor</span><span class="o">(</span><span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">height</span><span class="o">/</span><span class="m">2</span><span class="o">),</span> <span class="nx">widgetPoint</span><span class="o">];</span> |
|
|
347 |
<span class="k">break</span><span class="o">;</span> |
|
|
348 |
<span class="nx">case</span> <span class="nx">PositionExt</span><span class="o">.</span><span class="nx">CC</span><span class="o">:</span> |
|
|
349 |
<span class="nx">xy</span> <span class="o">=</span> <span class="o">[</span><span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">left</span> <span class="o">+</span> <span class="nb">Math</span><span class="o">.</span><span class="nx">floor</span><span class="o">(</span><span class="nx">nodeRegion</span><span class="o">.</span><span class="nx">width</span><span class="sr">/2), nodeRegion.top + Math.floor(nodeRegion.height/</span><span class="m">2</span><span class="o">),</span> <span class="nx">widgetPoint</span><span class="o">];</span> |
|
|
350 |
<span class="k">break</span><span class="o">;</span> |
|
|
351 |
<span class="nx">default</span><span class="o">:</span> |
|
|
352 |
<span class="nx">Y</span><span class="o">.</span><span class="nx">log</span><span class="o">(</span><span class="s2">"align: Invalid Points Arguments"</span><span class="o">,</span> <span class="s2">"info"</span><span class="o">,</span> <span class="s2">"widget-position-extras"</span><span class="o">);</span> |
|
|
353 |
<span class="k">break</span><span class="o">;</span> |
|
|
354 |
<span class="o">}</span> |
|
|
355 |
|
|
|
356 |
<span class="k">if</span> <span class="o">(</span><span class="nx">xy</span><span class="o">)</span> <span class="o">{</span> |
|
|
357 |
<span class="k">this</span><span class="o">.</span><span class="nx">_doAlign</span><span class="o">(</span><span class="nx">widgetPoint</span><span class="o">,</span> <span class="nx">xy</span><span class="o">[</span><span class="m">0</span><span class="o">],</span> <span class="nx">xy</span><span class="o">[</span><span class="m">1</span><span class="o">]);</span> |
|
|
358 |
<span class="o">}</span> |
|
|
359 |
<span class="o">}</span> |
|
|
360 |
<span class="o">},</span> |
|
|
361 |
|
|
|
362 |
<span class="c">/**</span> |
|
|
363 |
<span class="c"> * Helper method, used to align the given point on the widget, with the XY page co-ordinates provided.</span> |
|
|
364 |
<span class="c"> *</span> |
|
|
365 |
<span class="c"> * @method _doAlign</span> |
|
|
366 |
<span class="c"> * @private</span> |
|
|
367 |
<span class="c"> * @param {String} widgetPoint Supported point constant (e.g. WidgetPositionExt.TL)</span> |
|
|
368 |
<span class="c"> * @param {Number} x X page co-ordinate to align to</span> |
|
|
369 |
<span class="c"> * @param {Number} y Y page co-ordinate to align to</span> |
|
|
370 |
<span class="c"> */</span> |
|
|
371 |
<span class="nx">_doAlign</span> <span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">widgetPoint</span><span class="o">,</span> <span class="nx">x</span><span class="o">,</span> <span class="nx">y</span><span class="o">)</span> <span class="o">{</span> |
|
|
372 |
<span class="k">var</span> <span class="nx">widgetNode</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">_posNode</span><span class="o">,</span> |
|
|
373 |
<span class="nx">xy</span><span class="o">;</span> |
|
|
374 |
|
|
|
375 |
<span class="nx">switch</span> <span class="o">(</span><span class="nx">widgetPoint</span><span class="o">)</span> <span class="o">{</span> |
|
|
376 |
<span class="nx">case</span> <span class="nx">PositionExt</span><span class="o">.</span><span class="nx">TL</span><span class="o">:</span> |
|
|
377 |
<span class="nx">xy</span> <span class="o">=</span> <span class="o">[</span><span class="nx">x</span><span class="o">,</span> <span class="nx">y</span><span class="o">];</span> |
|
|
378 |
<span class="k">break</span><span class="o">;</span> |
|
|
379 |
<span class="nx">case</span> <span class="nx">PositionExt</span><span class="o">.</span><span class="nx">TR</span><span class="o">:</span> |
|
|
380 |
<span class="nx">xy</span> <span class="o">=</span> <span class="o">[</span><span class="nx">x</span> <span class="o">-</span> <span class="nx">widgetNode</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">OFFSET_WIDTH</span><span class="o">),</span> <span class="nx">y</span><span class="o">];</span> |
|
|
381 |
<span class="k">break</span><span class="o">;</span> |
|
|
382 |
<span class="nx">case</span> <span class="nx">PositionExt</span><span class="o">.</span><span class="nx">BL</span><span class="o">:</span> |
|
|
383 |
<span class="nx">xy</span> <span class="o">=</span> <span class="o">[</span><span class="nx">x</span><span class="o">,</span> <span class="nx">y</span> <span class="o">-</span> <span class="nx">widgetNode</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">OFFSET_HEIGHT</span><span class="o">)];</span> |
|
|
384 |
<span class="k">break</span><span class="o">;</span> |
|
|
385 |
<span class="nx">case</span> <span class="nx">PositionExt</span><span class="o">.</span><span class="nx">BR</span><span class="o">:</span> |
|
|
386 |
<span class="nx">xy</span> <span class="o">=</span> <span class="o">[</span><span class="nx">x</span> <span class="o">-</span> <span class="nx">widgetNode</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">OFFSET_WIDTH</span><span class="o">),</span> <span class="nx">y</span> <span class="o">-</span> <span class="nx">widgetNode</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">OFFSET_HEIGHT</span><span class="o">)];</span> |
|
|
387 |
<span class="k">break</span><span class="o">;</span> |
|
|
388 |
<span class="nx">case</span> <span class="nx">PositionExt</span><span class="o">.</span><span class="nx">TC</span><span class="o">:</span> |
|
|
389 |
<span class="nx">xy</span> <span class="o">=</span> <span class="o">[</span><span class="nx">x</span> <span class="o">-</span> <span class="o">(</span><span class="nx">widgetNode</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">OFFSET_WIDTH</span><span class="o">)/</span><span class="m">2</span><span class="o">),</span> <span class="nx">y</span><span class="o">];</span> |
|
|
390 |
<span class="k">break</span><span class="o">;</span> |
|
|
391 |
<span class="nx">case</span> <span class="nx">PositionExt</span><span class="o">.</span><span class="nx">BC</span><span class="o">:</span> |
|
|
392 |
<span class="nx">xy</span> <span class="o">=</span> <span class="o">[</span><span class="nx">x</span> <span class="o">-</span> <span class="o">(</span><span class="nx">widgetNode</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">OFFSET_WIDTH</span><span class="o">)/</span><span class="m">2</span><span class="o">),</span> <span class="nx">y</span> <span class="o">-</span> <span class="nx">widgetNode</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">OFFSET_HEIGHT</span><span class="o">)];</span> |
|
|
393 |
<span class="k">break</span><span class="o">;</span> |
|
|
394 |
<span class="nx">case</span> <span class="nx">PositionExt</span><span class="o">.</span><span class="nx">LC</span><span class="o">:</span> |
|
|
395 |
<span class="nx">xy</span> <span class="o">=</span> <span class="o">[</span><span class="nx">x</span><span class="o">,</span> <span class="nx">y</span> <span class="o">-</span> <span class="o">(</span><span class="nx">widgetNode</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">OFFSET_HEIGHT</span><span class="o">)/</span><span class="m">2</span><span class="o">)];</span> |
|
|
396 |
<span class="k">break</span><span class="o">;</span> |
|
|
397 |
<span class="nx">case</span> <span class="nx">PositionExt</span><span class="o">.</span><span class="nx">RC</span><span class="o">:</span> |
|
|
398 |
<span class="nx">xy</span> <span class="o">=</span> <span class="o">[(</span><span class="nx">x</span> <span class="o">-</span> <span class="nx">widgetNode</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">OFFSET_WIDTH</span><span class="o">)),</span> <span class="nx">y</span> <span class="o">-</span> <span class="o">(</span><span class="nx">widgetNode</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">OFFSET_HEIGHT</span><span class="o">)/</span><span class="m">2</span><span class="o">)];</span> |
|
|
399 |
<span class="k">break</span><span class="o">;</span> |
|
|
400 |
<span class="nx">case</span> <span class="nx">PositionExt</span><span class="o">.</span><span class="nx">CC</span><span class="o">:</span> |
|
|
401 |
<span class="nx">xy</span> <span class="o">=</span> <span class="o">[</span><span class="nx">x</span> <span class="o">-</span> <span class="o">(</span><span class="nx">widgetNode</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">OFFSET_WIDTH</span><span class="o">)</span><span class="sr">/2), y - (widgetNode.get(OFFSET_HEIGHT)/</span><span class="m">2</span><span class="o">)];</span> |
|
|
402 |
<span class="k">break</span><span class="o">;</span> |
|
|
403 |
<span class="nx">default</span><span class="o">:</span> |
|
|
404 |
<span class="nx">Y</span><span class="o">.</span><span class="nx">log</span><span class="o">(</span><span class="s2">"align: Invalid Points Argument"</span><span class="o">,</span> <span class="s2">"info"</span><span class="o">,</span> <span class="s2">"widget-position-extras"</span><span class="o">);</span> |
|
|
405 |
<span class="k">break</span><span class="o">;</span> |
|
|
406 |
<span class="o">}</span> |
|
|
407 |
|
|
|
408 |
<span class="k">if</span> <span class="o">(</span><span class="nx">xy</span><span class="o">)</span> <span class="o">{</span> |
|
|
409 |
<span class="k">this</span><span class="o">.</span><span class="nx">move</span><span class="o">(</span><span class="nx">xy</span><span class="o">);</span> |
|
|
410 |
<span class="o">}</span> |
|
|
411 |
<span class="o">},</span> |
|
|
412 |
|
|
|
413 |
<span class="c">/**</span> |
|
|
414 |
<span class="c"> * Aligns the Widget to the provided node (or viewport) using the provided</span> |
|
|
415 |
<span class="c"> * points. The method can be invoked directly, however it will result in </span> |
|
|
416 |
<span class="c"> * the align attribute being out of sync with current position of the of Widget.</span> |
|
|
417 |
<span class="c"> * </span> |
|
|
418 |
<span class="c"> * @method align</span> |
|
|
419 |
<span class="c"> * @param {Node | String | null} node A reference (or selector string) for the Node which with the Widget is to be aligned.</span> |
|
|
420 |
<span class="c"> * If null is passed in, the Widget will be aligned with the viewport.</span> |
|
|
421 |
<span class="c"> * @param {Array[2]} points A two element array, specifying the points on the Widget and node/viewport which need to be aligned. </span> |
|
|
422 |
<span class="c"> * The first entry is the point on the Widget, and the second entry is the point on the node/viewport which need to align.</span> |
|
|
423 |
<span class="c"> * Valid point references are defined as static constants on the WidgetPositionExt class. </span> |
|
|
424 |
<span class="c"> * </span> |
|
|
425 |
<span class="c"> * e.g. [WidgetPositionExt.TL, WidgetPositionExt.TR] will align the top-left corner of the Widget with the top-right corner of the node/viewport.</span> |
|
|
426 |
<span class="c"> */</span> |
|
|
427 |
<span class="nx">align</span><span class="o">:</span> <span class="k">function</span> <span class="o">(</span><span class="nx">node</span><span class="o">,</span> <span class="nx">points</span><span class="o">)</span> <span class="o">{</span> |
|
|
428 |
<span class="k">this</span><span class="o">.</span><span class="nx">set</span><span class="o">(</span><span class="nx">ALIGN</span><span class="o">,</span> <span class="o">{</span><span class="nx">node</span><span class="o">:</span> <span class="nx">node</span><span class="o">,</span> <span class="nx">points</span><span class="o">:</span><span class="nx">points</span><span class="o">});</span> |
|
|
429 |
<span class="o">},</span> |
|
|
430 |
|
|
|
431 |
<span class="c">/**</span> |
|
|
432 |
<span class="c"> * Centers the container in the viewport, or if a node is passed in,</span> |
|
|
433 |
<span class="c"> * the node.</span> |
|
|
434 |
<span class="c"> *</span> |
|
|
435 |
<span class="c"> * @method centered</span> |
|
|
436 |
<span class="c"> * @param {Node | String} node Optional. A node reference or selector string defining the node </span> |
|
|
437 |
<span class="c"> * inside which the Widget is to be centered. If not passed in, the Widget will be centered in the </span> |
|
|
438 |
<span class="c"> * viewport.</span> |
|
|
439 |
<span class="c"> */</span> |
|
|
440 |
<span class="nx">centered</span><span class="o">:</span> <span class="k">function</span> <span class="o">(</span><span class="nx">node</span><span class="o">)</span> <span class="o">{</span> |
|
|
441 |
<span class="k">this</span><span class="o">.</span><span class="nx">align</span><span class="o">(</span><span class="nx">node</span><span class="o">,</span> <span class="o">[</span><span class="nx">PositionExt</span><span class="o">.</span><span class="nx">CC</span><span class="o">,</span> <span class="nx">PositionExt</span><span class="o">.</span><span class="nx">CC</span><span class="o">]);</span> |
|
|
442 |
<span class="o">}</span> |
|
|
443 |
<span class="o">};</span> |
|
|
444 |
|
|
|
445 |
<span class="nx">Y</span><span class="o">.</span><span class="nx">WidgetPositionExt</span> <span class="o">=</span> <span class="nx">PositionExt</span><span class="o">;</span> |
|
|
446 |
</pre></div> |
|
|
447 |
</div> |
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|
448 |
</div> |
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449 |
</div> |
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450 |
<div class="yui-b"> |
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<div class="nav"> |
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<div id="moduleList" class="module"> |
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454 |
<h4>Modules</h4> |
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<ul class="content"> |
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<li class=""><a href="module_widget.html" title="widget">widget</a></li> |
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<li class=""><a href="module_widget-position.html" title="widget-position">widget-position</a></li> |
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492 |
<li class="selected"><a href="module_widget-position-ext.html" title="widget-position-ext">widget-position-ext</a></li> |
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<li class=""><a href="module_widget-stack.html" title="widget-stack">widget-stack</a></li> |
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<li class=""><a href="module_yui.html" title="yui">yui</a></li> |
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</ul> |
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<div id="classList" class="module"> |
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500 |
<h4>Classes</h4> |
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<ul class="content"> |
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<li class=""><a href="WidgetPositionExt.html" title="WidgetPositionExt">WidgetPositionExt</a></li> |
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</div> |
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506 |
<div id="fileList" class="module"> |
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507 |
<h4>Files</h4> |
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508 |
<ul class="content"> |
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|
509 |
<li class="selected"><a href="Widget-PositionExt.js.html" title="Widget-PositionExt.js">Widget-PositionExt.js</a></li> |
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510 |
</ul> |
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511 |
</div> |
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<hr /> |
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522 |
Copyright © 2009 Yahoo! Inc. All rights reserved. |
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</div> |
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524 |
</div> |
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525 |
<script type="text/javascript"> |
|
|
526 |
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|
|
527 |
</script> |
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|
528 |
</body> |
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529 |
</html> |