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Added pager (navigation dots) functionality to scrollview #2306

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Added pager (navigation dots) functionality to scrollview #2306

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23 changes: 23 additions & 0 deletions experiments/scrollview/jquery.mobile.scrollview.css
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Original file line number Diff line number Diff line change
Expand Up @@ -63,3 +63,26 @@
width: 100%;
height: 5px;
}

.ui-scrollview-pager{
list-style:none;
margin:0;padding:0;
text-align:right;
position:absolute;
bottom:2px;
width:100%;
font-size:8px;
}
.ui-scrollview-pager li{
display:inline-block;
background:#666;
margin:0 5px;
border-radius:8px;
border:1px solid #ccc;
width:10px;
height:10px;
cursor:pointer;
}
.ui-scrollview-pager li.active{
background:#fff;
}
41 changes: 41 additions & 0 deletions experiments/scrollview/jquery.mobile.scrollview.js
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,7 @@ jQuery.widget( "mobile.scrollview", jQuery.mobile.widget, {
showScrollBars: true,

pagingEnabled: false,
pagerEnabled: false,
delayedClickSelector: "a,input,textarea,select,button,.ui-btn",
delayedClickEnabled: false
},
Expand Down Expand Up @@ -79,6 +80,45 @@ jQuery.widget( "mobile.scrollview", jQuery.mobile.widget, {
this._timerCB = function(){ self._handleMomentumScroll(); };

this._addBehaviors();
this._setupPager();
},

_setupPager: function(){
if(this.options.pagingEnabled && this.options.pagerEnabled && (this.options.direction === "x" || this.options.direction === "y")){
var self = this;
var dimension = (this.options.direction === "x") ? "width" : "height";

var clipSize = parseInt(this._$clip.css(dimension), 10);
var viewSize = parseInt(this._$view.css(dimension), 10);

var pages = parseInt(viewSize / clipSize);

var pager ='<ul class="ui-scrollview-pager">';
for(i = 1; i <= pages; i++) {
pager += '<li';
if(i==1) pager += ' class="active"';
pager += '></li>';
}
pager += '</ul>';
this._$clip.append(pager);

$('.ui-scrollview-pager li').click(function(e){
self.scrollTo($(this).index() * clipSize, 0, self.options.snapbackDuration);
});

}
},

_updatePager: function(){
if(this.options.pagingEnabled && this.options.pagerEnabled && (this.options.direction === "x" || this.options.direction === "y")){
var dimension = (this.options.direction === "x") ? "width" : "height";

var clipSize = parseInt(this._$clip.css(dimension), 10);
var currPos = (this.options.direction === "x") ? this.getScrollPosition().x : this.getScrollPosition().y;

var index = parseInt((currPos + (clipSize / 2)) / clipSize);
this._$clip.find('.ui-scrollview-pager li').eq(index).addClass('active').siblings().removeClass('active');
}
},

_startMScroll: function(speedX, speedY)
Expand Down Expand Up @@ -240,6 +280,7 @@ jQuery.widget( "mobile.scrollview", jQuery.mobile.widget, {
self._setScrollPosition(sx + (dx * ec), sy + (dy * ec));
self._timerID = setTimeout(tfunc, self._timerInterval);
}
self._updatePager();
};

this._timerID = setTimeout(tfunc, this._timerInterval);
Expand Down
4 changes: 3 additions & 1 deletion experiments/scrollview/scrollview.js
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Expand Up @@ -37,8 +37,10 @@ $(":jqmData(role='page')").live("pageshow", function(event) {
var opts = {};
if (dir)
opts.direction = dir;
if (paging)
if (paging) {
opts.pagingEnabled = true;
opts.pagerEnabled = true;
}

var method = $this.jqmData("scroll-method");
if (method)
Expand Down