3 changed files with 94 additions and 367 deletions
@ -1,306 +0,0 @@ |
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/* |
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--- |
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description: Fill the empty space around elements, creating a spotlight effect. |
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license: GPL v3.0 |
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authors: |
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- Ruud Burger |
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requires: |
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- core/1.3: [Class.Extras, Element.Dimensions] |
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provides: [Spotlight] |
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... |
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*/ |
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var Spotlight = new Class({ |
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Implements: [Options], |
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options: { |
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'fillClass': 'spotlight_fill', |
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'fillColor': [255,255,255], |
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'fillOpacity': 1, |
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'parent': null, |
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'inject': null, |
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'soften': 10 |
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}, |
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initialize: function(elements, options){ |
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var self = this; |
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self.setOptions(options); |
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self.setElements(elements); |
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self.clean(); |
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}, |
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clean: function(){ |
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var self = this; |
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self.range = []; self.fills = []; self.edges = []; |
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self.vert = []; |
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self.vert_el = []; |
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self.top = []; self.left = []; |
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self.width = []; self.height = []; |
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}, |
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setElements: function(elements){ |
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this.elements = elements; |
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}, |
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addElement: function(element){ |
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this.elements.include(element); |
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}, |
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create: function(){ |
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var self = this; |
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self.destroy(); |
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var page_c = $(self.options.parent || window).getScrollSize(); |
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var soften = self.options.soften; |
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// Get the top and bottom of all the elements
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self.elements.each(function(el, nr){ |
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var c = el.getCoordinates(); |
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if(c.top > 0 && nr == 0){ |
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self.vert.append([0]); |
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self.vert_el.append([null]); |
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} |
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// Top
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self.vert.append([c.top-soften]); |
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self.vert_el.append([el]); |
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// Bottom
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self.vert.append([c.top+c.height+soften]); |
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self.vert_el.append([el]); |
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// Add it to range, for later calculation from left to right
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self.range.append([{ |
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'el': el, |
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'top': c.top-soften, |
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'bottom': c.top+c.height+soften, |
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'left': c.left-soften, |
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'right': c.left+c.width+soften |
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}]) |
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// Create soft edge around element
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self.soften(el); |
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}); |
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if(self.elements.length == 0){ |
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self.vert.append([0]); |
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self.vert_el.append([null]); |
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} |
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// Reorder
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var vert = self.vert.clone().sort(self.numberSort) // Use custom sort function because apparently 100 is less then 20..
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vert_el_new = [], vert_new = []; |
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vert.each(function(v){ |
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var old_nr = self.vert.indexOf(v); |
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vert_el_new.append([self.vert_el[old_nr]]); |
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vert_new.append([v]); |
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}); |
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self.vert = vert_new; |
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self.vert_el = vert_el_new; |
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// Shorten vars
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var vert = self.vert, |
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vert_el = self.vert_el; |
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var t, h, l, w, left, width, |
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row_el, cursor = 0; |
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// Loop over all vertical lines
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vert.each(function(v, nr){ |
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// Use defaults if el == null (for first fillblock)
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var c = vert_el[nr] ? vert_el[nr].getCoordinates() : { |
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'left': 0, |
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'top': 0, |
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'width': page_c.x, |
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'height': 0 |
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}; |
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// Loop till cursor gets to parent_element.width
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var fail_safe = 0; |
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while (cursor < page_c.x && fail_safe < 10){ |
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t = vert[nr]; // Top is the same for every element in a row
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h = (nr == vert.length-1) ? (page_c.y - t) : vert[nr+1] - vert[nr]; // So is hight
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// First element get special treatment
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if(nr == 0){ |
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l = 0; |
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w = c.width+(2*soften); |
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cursor += w; |
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} |
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else { |
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row_el = self.firstFromLeft(cursor, t) // First next element
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left = row_el.el ? row_el.left : c.left-soften; |
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width = row_el.el ? row_el.left - cursor : c.left-soften; |
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if(t == c.bottom+soften && !row_el.el) |
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width = page_c.x; |
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l = cursor; |
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if(cursor < left){ |
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w = width; |
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cursor += w+(row_el.right - row_el.left); |
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} |
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else { |
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w = page_c.x-l; |
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cursor += w; |
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} |
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} |
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// Add it to the pile!
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if(h > 0 && w > 0){ |
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self.top.append([t]); self.left.append([l]); |
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self.width.append([w]); self.height.append([h]); |
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} |
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fail_safe++; |
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} |
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cursor = 0; // New line, reset cursor position
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fail_safe = 0; |
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}); |
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// Create the fill blocks
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self.top.each(self.createFillItem.bind(self)); |
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}, |
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createFillItem: function(top, nr){ |
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var self = this; |
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var fill = new Element('div', { |
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'class': self.options.fillClass, |
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'styles': { |
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'position': 'absolute', |
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'background-color': 'rgba('+self.options.fillColor.join(',')+', '+self.options.fillOpacity+')', |
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'display': 'block', |
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'z-index': 999, |
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'top': self.top[nr], |
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'left': self.left[nr], |
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'height': self.height[nr], |
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'width': self.width[nr] |
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} |
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}).inject(self.options.inject || document.body); |
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self.fills.include(fill); |
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}, |
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// Find the first element after x,y coordinates
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firstFromLeft: function(x, y){ |
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var self = this; |
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var lowest_left = null; |
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var return_data = {}; |
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self.range.each(function(range){ |
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var is_within_height_range = range.top <= y && range.bottom > y, |
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is_within_width_range = range.left >= x, |
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more_left_then_previous = range.left < lowest_left || lowest_left == null; |
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if(is_within_height_range && is_within_width_range && more_left_then_previous){ |
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lowest_left = range.left; |
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return_data = range; |
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} |
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}) |
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return return_data |
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}, |
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soften: function(el){ |
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var self = this; |
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var soften = self.options.soften; |
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var c = el.getCoordinates(); |
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var from_color = 'rgba('+self.options.fillColor.join(',')+', '+self.options.fillOpacity+')'; |
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var to_color = 'rgba('+self.options.fillColor.join(',')+', 0)'; |
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// Top
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self.createEdge({ |
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'top': c.top-soften, |
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'left': c.left-soften, |
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'width': c.width+(2*soften), |
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'background': '-webkit-gradient(linear, left top, left bottom, from('+from_color+'), to('+to_color+'))', |
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'background': '-moz-linear-gradient(top, '+from_color+', '+to_color+')' |
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}) |
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// Right
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self.createEdge({ |
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'top': c.top-soften, |
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'left': c.right, |
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'height': c.height+(2*soften), |
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'background': '-webkit-gradient(linear, left, right, from('+from_color+'), to('+to_color+'))', |
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'background': '-moz-linear-gradient(right, '+from_color+', '+to_color+')' |
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}) |
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// Bottom
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self.createEdge({ |
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'top': c.bottom, |
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'left': c.left-soften, |
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'width': c.width+(2*soften), |
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'background': '-webkit-gradient(linear, left bottom, left top, from('+from_color+'), to('+to_color+'))', |
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'background': '-moz-linear-gradient(bottom, '+from_color+', '+to_color+')' |
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}) |
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// Left
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self.createEdge({ |
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'top': c.top-soften, |
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'left': c.left-soften, |
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'height': c.height+(2*soften), |
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'background': '-webkit-gradient(linear, right, left, from('+from_color+'), to('+to_color+'))', |
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'background': '-moz-linear-gradient(left, '+from_color+', '+to_color+')' |
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}) |
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}, |
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createEdge: function(style){ |
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var self = this; |
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var soften = self.options.soften; |
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var edge = new Element('div.edge', { |
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'styles': Object.merge({ |
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'position': 'absolute', |
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'width': soften, |
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'height': soften, |
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}, style) |
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}).inject(self.options.inject || document.body) |
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self.edges.include(edge); |
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}, |
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destroy: function(){ |
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var self = this; |
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self.fills.each(function(fill){ |
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fill.destroy(); |
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}) |
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self.edges.each(function(edge){ |
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edge.destroy(); |
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}) |
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self.clean(); |
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}, |
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numberSort: function (a, b) { |
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return a - b; |
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} |
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}); |
@ -0,0 +1,93 @@ |
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/* |
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--- |
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description: ScrollSpy |
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authors: |
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- David Walsh (http://davidwalsh.name)
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|
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license: |
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- MIT-style license |
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requires: |
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core/1.2.1: '*' |
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provides: |
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- ScrollSpy |
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... |
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*/ |
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var ScrollSpy = new Class({ |
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/* implements */ |
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Implements: [Options,Events], |
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/* options */ |
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options: { |
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container: window, |
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max: 0, |
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min: 0, |
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mode: 'vertical'/*, |
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onEnter: $empty, |
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onLeave: $empty, |
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onScroll: $empty, |
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onTick: $empty |
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*/ |
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}, |
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/* initialization */ |
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initialize: function(options) { |
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/* set options */ |
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this.setOptions(options); |
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this.container = document.id(this.options.container); |
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this.enters = this.leaves = 0; |
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this.inside = false; |
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/* listener */ |
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var self = this; |
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this.listener = function(e) { |
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/* if it has reached the level */ |
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var position = self.container.getScroll(), |
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xy = position[self.options.mode == 'vertical' ? 'y' : 'x'], |
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min = typeOf(self.options.min) == 'function' ? self.options.min() : self.options.min, |
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max = typeOf(self.options.max) == 'function' ? self.options.max() : self.options.max; |
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if(xy >= min && (max == 0 || xy <= max)) { |
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/* trigger enter event if necessary */ |
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if(!self.inside) { |
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/* record as inside */ |
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self.inside = true; |
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self.enters++; |
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/* fire enter event */ |
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self.fireEvent('enter',[position,self.enters,e]); |
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} |
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/* trigger the "tick", always */ |
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self.fireEvent('tick',[position,self.inside,self.enters,self.leaves,e]); |
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} |
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/* trigger leave */ |
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else if(self.inside){ |
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self.inside = false; |
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self.leaves++; |
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self.fireEvent('leave',[position,self.leaves,e]); |
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} |
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/* fire scroll event */ |
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self.fireEvent('scroll',[position,self.inside,self.enters,self.leaves,e]); |
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}; |
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/* make it happen */ |
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this.addListener(); |
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}, |
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/* starts the listener */ |
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start: function() { |
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this.container.addEvent('scroll',this.listener); |
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}, |
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/* stops the listener */ |
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stop: function() { |
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this.container.removeEvent('scroll',this.listener); |
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}, |
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/* legacy */ |
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addListener: function() { |
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this.start(); |
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} |
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}); |
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