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Readarr/NzbDrone.Web/Content2/New folder/jquery.lhpMegaImgViewer.1.1.js

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43 KiB

// Mega Image Viewer v1.1 - jQuery image viewer plugin - converting <div> element to an animated image viewer
// (c) 2012 lhp - http://codecanyon.net/user/lhp
/*
* ----------------------------------------------------------------------------
* settings:
* viewportWidth string (default: '100%'; accepted: string; Defines width of the area in which image will be displayed inside the outer div (myDiv). Size can be given in pixels, ems, percentages.)
* viewportHeight string (default: '100%'; accepted: string; Defines height of the area in which image will be displayed inside the outer div (myDiv). Size can be given in pixels, ems, percentages.)
* startScale number (default: 1; accepted: 0...1; Defines start scale.)
* startX number (default: 0; accepted: integer; Defines start coordinate x in px, in the display object frame of reference, which will be moved to the center of the viewport, if it is possible.)
* startY number (defaabout:startpageult: 0; accepted: integer; Defines start coordinate y in px, in the display object frame of reference, which will be moved to the center of the viewport, if it is possible.)
* animTime number (default: 500; accepted: integer; Defines duration in ms of the scale and position animations.)
* draggInertia number (default: 10; accepted: integer; Defines inertia after dragging.)
* contentUrl string (default: ''; accepted: string; Defines a path for an image source. This param is optional. Instead you can use the HTML image tag (see DOC -> STEP 2B - ACTIVATE THE PLUGIN (IMAGE SOURCE FROM HTML)).)
* intNavEnable boolean (default: true; accepted: true, false; Defines the navigation bar enabled/disabled. )
* intNavPos string (default: 'T'; accepted: 'TL', 'T', 'TR', 'L', 'R', 'BL', 'B', 'BR', false; Defines the navigation bar position. )
* intNavAutoHide boolean (default: false; accepted: true, false; Defines the navigation bar autohide. )
* fitToViewportShortSide boolean (default: false; accepted: true, false; Shorter side of the displayed object will fit the viewport. )
* contentSizeOver100 boolean (default: false; accepted: true, false; If the viewport size (width and height) is greater than the size of the displayed object, allow the object scaled over 100% to fit the viewport (zoom is disabled). )
* ----------------------------------------------------------------------------
*/
(function ($) {
var pubMet, constSett, defaultSett;about:startpage
constSett = {
'dragSmooth' : 8
};
defaultSett = {
'viewportWidth' : '100%',
'viewportHeight' : '100%',
'startScale' : 1,
'startX' : 0,
'startY' : 0,
'animTime' : 500,
'draggInertia' : 10,
'contentUrl' : '',
'intNavEnable' : true,
'intNavPos' : 'T',
'intNavAutoHide' : false,
'fitToViewportShortSide' : false,
'contentSizeOver100' : false
};
pubMet = {
init : function (options) {
return this.each(function () {
var $t = $(this), data = $t.data('lhpMIV'), interImgs = $t.find('img'), sett = {};
$.extend(sett, defaultSett, options);
$.extend(sett, constSett);
if (!data) {
if(sett.draggInertia < 0) {
sett.draggInertia = 0;
}
sett.animTime = parseInt(sabout:startpageett.animTime);
if(sett.animTime < 0) {
sett.animTime = 0;
}
/*img tag*/
if(interImgs.length > 0) {
sett.contentUrl = interImgs[0].src;
interImgs.remove();
}
$t.data('lhpMIV', {});
$t.data('lhpMIV').interImgsTmp = interImgs;
$t.data('lhpMIV').lc = new LocationChanger(sett, $t);
}
});
},
/*
* Sets the position and size of the displayed object. The second parameter is optional - if empty, the size remains unchanged.
* @param {integer} x Coordinate x in px, in the display object frame of reference, which will be moved to the center of the viewport (if it is possible).
* @param {integer} y Coordinate y in px, in the display object frame of reference, which will be moved to the center of the viewport (if it is possible).
* @param {number} scale The size to which the display object will be scaled (if it is possible); optional.
* @return {Object} Returns jQuery object.
*/
setPosition : function (x, y, scale) {
return this.each(function () {
var $t = $(this), data = $t.data('lhpMIV');
if (data) {
$t.data('lhpMIV').lc.setProperties(x, y, scale);
}
});
},
/*about:startpage
* Initializes the movement of the display object to the top, to the boundary of the viewport or untill the moveStop method is called.
* @return {Object} Returns jQuery object.
*/
moveUp : function () {
return this.each(function () {
var $t = $(this), data = $t.data('lhpMIV');
if (data) {
$t.data('lhpMIV').lc.beginDirectMove('U');
}
});
},
/*
* Initializes the movement of the display object to the bottom, to the boundary of the viewport or untill the moveStop method is called.
* @return {Object} Returns jQuery object.
*/
moveDown : function () {
return this.each(function () {
var $t = $(this), data = $t.data('lhpMIV');
if (data) {
$t.data('lhpMIV').lc.beginDirectMove('D');
}
});
},
/*
* Initializes the movement of the display object to the left, to the boundary of the viewport or untill the moveStop method is called.
* @return {Object} Returns jQuery object.
*/
moveLeft : function () {
return this.each(function () {
var $t = $(this), data = $t.data('lhpMIV');
if (data) {
$t.data('lhpMIV').lc.beginDirectMove('L');
}
});
},
/*
* Initializes the movement of the display object to the right, to the boundary of the viewport or untill the moveStop method is called.
* @return {Object} Returns jQuery object.about:startpage
*/
moveRight : function () {
return this.each(function () {
var $t = $(this), data = $t.data('lhpMIV');
if (data) {
$t.data('lhpMIV').lc.beginDirectMove('R');
}
});
},
/*
* Stops the movement of the display object.
* @return {Object} Returns jQuery object.
*/
moveStop : function () {
return this.each(function () {
var $t = $(this), data = $t.data('lhpMIV');
if (data) {
$t.data('lhpMIV').lc.stopDirectMoving();
}
});
},
/*
* Initializes the zooming of the display object up to 100% or untill the zoomStop method is called.
* @return {Object} Returns jQuery object.
*/
zoom : function () {
return this.each(function () {
var $t = $(this), data = $t.data('lhpMIV');
if (data) {
$t.data('lhpMIV').lc.beginZooming('Z');
}
});
},
/*
* Initializes the unzooming of the display object up to the viewport's size or untill the zoomStop method is called.about:startpage
* @return {Object} Returns jQuery object.
*/
unzoom : function () {
return this.each(function () {
var $t = $(this), data = $t.data('lhpMIV');
if (data) {
$t.data('lhpMIV').lc.beginZooming('U');
}
});
},
/*
* Stops the zooming/unzooming of the display object.
* @return {Object} Returns jQuery object.
*/
zoomStop : function () {
return this.each(function () {
var $t = $(this), data = $t.data('lhpMIV');
if (data) {
$t.data('lhpMIV').lc.stopZooming();
}
});
},
/*
* Fits the display obejct's size to the viewport size and moves the object to the center of the viewport.
* @return {Object} Returns jQuery object.
*/
fitToViewport : function () {
return this.each(function () {
var $t = $(this), data = $t.data('lhpMIV');
if (data) {
$t.data('lhpMIV').lc.setProperties(null, null, 0.0001);
}
});
},
/*
* Sets the initial size of the display object anabout:startpaged moves the object to the center of the viewport.
* @return {Object} Returns jQuery object.
*/
fullSize : function () {
return this.each(function () {
var $t = $(this), data = $t.data('lhpMIV');
if (data) {
$t.data('lhpMIV').lc.setProperties(null, null, 1);
}
});
},
/*
* Control the correct position and size of the object displayed inside the viewport.
* @return {Object} Returns jQuery object.
*/
adaptsToContainer : function () {
return this.each(function () {
var $t = $(this), data = $t.data('lhpMIV');
if (data) {
$t.data('lhpMIV').lc.adaptsToContainer();
}
});
},
/*
* Destructor. Removes the viewer from the page. Restores the original appearance and functionality of the outer <div> element. Allows to efficiently clean the memory.
* @return {Object} Returns jQuery object.
*/
destroy : function () {
return this.each(function () {
var $t = $(this), data = $t.data('lhpMIV');
if (data) {
$t.data('lhpMIV').lc.destroy();
$t.prepend($t.data('lhpMIV').interImgsTmp);
$t.removeData('lhpMIV');
}
});about:startpage
}
};
$.fn.lhpMegaImgViewer = function (method) {
if (pubMet[method]) {
return pubMet[method].apply(this, Array.prototype.slice.call(arguments, 1));
} else if (typeof method === 'object' || !method) {
return pubMet.init.apply(this, arguments);
} else {
$.error('Method ' + method + ' does not exist on jQuery.lhpMegaImgViewer');
}
};
/*location changer*/
var LocationChanger = function (sett, $mainHolder) {
this.isTouchDev = (typeof(window.ontouchstart) != 'undefined') ? true : false;
this.sett = sett;
this.$mainHolder = $mainHolder;
this.lastMousePageCoor = this.lastDrag = this.contentFullSize = {};
this.$mivHol = this.$contentHol = this.$content = null;
this.$preloadHol = this.$blackScreen = this.$navHol = null;
this.movingIntreval = this.movingDirectIntreval = this.navAutohideInterval = null;
this.speedX = this.speedY = null;
this.targetX = this.targetY = null;
this.allow = {allowDown : null, allowUp : null, allowLeft : null, allowRight : null, allowZoom : null, allowUnzoom : null};
this.sm = new ScaleManager();
this.createHolders();
/*load content*/
this.contentLoader = new LoaderImgContent(this.sett.contentUrl, this.$contentHol, function(that) {
return function($content) {
that.imgContentStart($content);
}about:startpage
}(this));
/**/
};
//initialization
LocationChanger.prototype.createHolders = function () {
this.$mivHol = $('<div />')
.addClass('lhp_miv_holder')
.css({position : 'relative', overflow : 'hidden', width : this.sett.viewportWidth, height : this.sett.viewportHeight});
this.$preloadHol = $('<div />')
.addClass('lhp_miv_preload_holder');
this.$contentHol = $('<div />')
.addClass('lhp_miv_content_holder')
.css({position : 'absolute'});
this.$blackScreen = $('<div />')
.addClass('lhp_miv_blackScreen')
.css({position : 'absolute', 'z-index' : '1', width : '100%', height : '100%', background : '#ffffff'});
this.$mivHol.append(this.$preloadHol);
this.$mivHol.append(this.$blackScreen);
this.$mivHol.append(this.$contentHol);
this.$mainHolder.append(this.$mivHol);
}
LocationChanger.prototype.iniNav = function () {
var $ul = $('<ul />').addClass('ui-widget ui-helper-clearfix'),
$mainHolder = this.$mainHolder,
$navHol = this.$navHol,
$li, $span,
_this = this,
btt = [['moveDown', 'moveStop', 'ui-icon-carat-1-n'], ['moveUp', 'moveStop', 'ui-icon-carat-1-s'], ['moveRight', 'moveStop', 'ui-icon-carat-1-w'], ['moveLeft', 'moveStop', 'ui-icon-carat-1-e'],
['zoom', 'zoomStop', 'ui-icon-zoomin'], ['unzoom', 'zoomStop', 'ui-icon-zoomout'], ['fitToViewport', null, 'ui-icon-stop'], ['fullSize', null, 'ui-icon-arrow-4-diag']];
$.each(btt, function(i) {
mousedownFunc = btt[i][0],
mouseupFunc = btt[i][1],
$li = $('<li />').addClass('ui-state-default ui-corner-all ' + mousedownFunc);
$span = $('<span />').addClass('ui-icon ' + btt[i][2]);
$li.append($span);
$ul.append($li);
$li.bind('mouseenter.lhpMIV touchstart.lhpMIV', function() {
if(!$(this).hasClass('lhp_miv_nav_btt_disab')) {
$(this).addClass('ui-state-hover');
}
});
$li.bind('mouseleave.lhpMIV touchend.lhpMIV', function() {
$(this).removeClass('ui-state-hover');
});
$li.bind('mousedown.lhpMIV touchstart.lhpMIV', function(func) {
return function(e) {
if(!$(this).hasClass('lhp_miv_nav_btt_disab')) {
$mainHolder.lhpMegaImgViewer(func);
}
e.preventDefault();
}
}(mousedownFunc));
if(mouseupFunc) {
$li.bind('mouseup.lhpMIV touchend.lhpMIV', function(func) {
return function(e) {
if(!$(this).hasClass('lhp_miv_nav_btt_disab')) {
$mainHolder.lhpMegaImgViewer(func);
}
e.preventDefault();
}
}(mouseupFunc));
}
});
$mainHolder.bind('mivChange.lhpMIV', function(e) {
var c1 = 'lhp_miv_nav_btt_disab', c2 = 'ui-state-hover';
if(e.allowDown) {
$navHol.find('.moveDown').removeClass(c1);
} else {
$navHol.find('.moveDown').removeClass(c2).addClass(c1);
}
if(e.allowUp) {
$navHol.find('.moveUp').removeClass(c1);
} else {
$navHol.find('.moveUp').removeClass(c2).addClass(c1);
}
if(e.allowLeft) {
$navHol.find('.moveLeft').removeClass(c1);
} else {
$navHol.find('.moveLeft').removeClass(c2).addClass(c1);
}
if(e.allowRight) {
$navHol.find('.moveRight').removeClass(c1);
} else {
$navHol.find('.moveRight').removeClass(c2).addClass(c1);
}
if(e.allowZoom) {
$navHol.find('.zoom').removeClass(c1);
$navHol.find('.fullSize').removeClass(c1);
} else {
$navHol.find('.zoom').removeClass(c2).addClass(c1);
$navHol.find('.fullSize').removeClass(c2).addClass(c1);
}
if(e.allowUnzoom) {
$navHol.find('.unzoom').removeClass(c1);
$navHol.find('.fitToViewport').removeClass(c1);
} else {
$navHol.find('.unzoom').removeClassabout:startpage(c2).addClass(c1);
$navHol.find('.fitToViewport').removeClass(c2).addClass(c1);
}
});
if(this.sett.intNavAutoHide) {
$navHol.css('display', 'none');
$mainHolder.bind('mouseenter.lhpMIV touchstart.lhpMIV', function() {
clearInterval(_this.navAutohideInterval);
$navHol.fadeIn('fast');
});
$mainHolder.bind('mouseleave.lhpMIV touchend.lhpMIV', function() {
clearInterval(_this.navAutohideInterval);
_this.navAutohideInterval = setInterval(function($navHol){
return function () {
$navHol.stop().clearQueue().fadeOut('fast');
};
}($navHol), 1000);
});
}
$navHol.append($ul);
}
LocationChanger.prototype.imgContentStart = function ($content) {
this.$content = $content;
$content.addClass('lhp_miv_content').css({'float' : 'left'});
this.contentFullSize = {'w' : $content.width(), 'h' : $content.height()};
this.start();
this.$blackScreen.animate({ opacity : 0 }, { duration : 500, complete : function(){ $(this).remove(); }});about:startpage
}
LocationChanger.prototype.start = function () {
if(this.sett.intNavEnable) {
this.$navHol = $('<div class="lhp_miv_nav"/>').addClass('lhp_miv_nav_pos_' + this.sett.intNavPos);
this.iniNav();
this.$mivHol.prepend(this.$navHol);
}
this.$preloadHol.remove();
this.$contentHol.bind('mouseenter.lhpMIV', {'_this' : this}, this.mouseenterHandler);
if(this.isTouchDev) {
this.$contentHol.bind('touchstart.lhpMIV', {'_this' : this}, this.mousedownHandler);
} else {
this.$contentHol.bind('mousedown.lhpMIV', {'_this' : this}, this.mousedownHandler);
this.$contentHol.bind('mouseup.lhpMIV', {'_this' : this}, this.mouseupHandler);
this.$contentHol.bind('mouseleave.lhpMIV', {'_this' : this}, this.mouseupHandler);
}
this.$contentHol.bind('mousewheel.lhpMIV', {'_this' : this}, this.mousewheelHandler);
this.setProperties(this.sett.startX, this.sett.startY, this.sett.startScale, true);
}
LocationChanger.prototype.destroy = function () {
/*clear content*/
this.contentLoader.dispose();
/*clear callback*/
this.animStop();
this.stopMoving();
this.stopDirectMoving();
/*clear nav handler*/
if(this.$navHol) {
this.$navHol.find('li').each(function(i) {
$(this).unbind();
});
}
/*clear handler*/
this.$mainHolder.unbind('.lhpMIV');
this.$contentHol.unbind();
/*clear holders*/
this.$mivHol.remove();
/*clear properties*/
$.each(this, function(k, v) {
if(!$.isFunction(v)) {
k = null;
}
});
}
//mouse handlers
LocationChanger.prototype.mousePageCoor = function (e) {
var r = {x : e.pageX, y : e.pageY};
e = e.originalEvent;
if(this.isTouchDev && e) {
r.x = e.changedTouches[0].pageX;
r.y = e.changedTouches[0].pageY;
}
return r;
}
LocationChanger.prototype.mouseenterHandler = function (e) {
e.data._this.$contentHol.css('cursor', 'url(cursorHand.png),default');
}
LocationChanger.prototype.mousedownHandler = function (e) {
var _this = e.data._this;
_this.animStop(true);
_this.stopMoving();
_this.stopDirectMoving();
if(_this.isTouchDev) {
_this.$contentHol.unbind('touchmove.lhpMIV', _this.mousemoveHandler).bind('touchmove.lhpMIV', {'_this' : _this}, _this.mousemoveHandler);
_this.$contentHol.unbind({'touchend.lhpMIV' : _this.positioning}).bind('touchend.lhpMIV' , {'_this' : _this}, _this.positioning);
} else {
_this.$contentHol.unbind('mousemove.lhpMIV', _this.mousemoveHandler).bind('mousemove.lhpMIV', {'_this' : _this}, _this.mousemoveHandler);
_this.$contentHol.unbind({'mouseup.lhpMIV' : _this.positioning}).bind('mouseup.lhpMIV' , {'_this' : _this}, _this.positioning);
}
_this.lastMousePageCoor = _this.mousePageCoor(e);
_this.$contentHol.css('cursor', 'url(cursorDrag.png), move');
e.preventDefault();
}
LocationChanger.prototype.mousemoveHandler = function (e) {
var _this = e.data._this;
if(_this.isTouchDev) {
_this.$contentHol.unbind({'touchend.lhpMIV' : _this.positioning});
_this.$contentHol.unbind({'touchend.lhpMIV' : _this.stopDraggingHandler}).bind('touchend.lhpMIV' , {'_this' : _this}, _this.stopDraggingHandler);
} else {
_this.$contentHol.unbind('mouseup.lhpMIV', _this.positioning);
_this.$contentHol.unbind({'mouseup.lhpMIV' : _this.stopDraggingHandler}).bind('mouseup.lhpMIV' , {'_this' : _this}, _this.stopDraggingHandler);
_this.$contentHol.unbind({'mouseleave.lhpMIV' : _this.stopDraggingHandler}).bind('mouseleave.lhpMIV' , {'_this' : _this}, _this.stopDraggingHandler);
}
_this.dragging(e, 'hard');
e.preventDefault();
}
LocationChanger.prototype.mouseupHandler = function (e) {
var _this = e.data._this;
_this.$contentHol.unbind('mousemove.lhpMIV', _this.mousemoveHandler);
_this.$contentHol.unbind('mouseup.lhpMIV', _this.positioning);
_this.$contentHol.css('cursor', 'url(cursorHand.png),default');
}
LocationChanger.prototype.stopDraggingHandler = function (e) {
var _this = e.data._this;
_this.$contentHol.unbind({'mouseup.lhpMIV' : _this.stopDraggingHandler});
_this.$contentHol.unbind({'mouseleave.lhpMIV' : _this.stopDraggingHandler});
_this.dragging(e, 'inertia');
}
LocationChanger.prototype.mousewheelHandler = function (e, delta) {
var _this = e.data._this,
newScale = (delta > 0) ? _this.sm.nextScale() : _this.sm.prevScale(),
newProp = _this.calculateScale(e, newScale);
_this.animStop();
_this.stopMoving();
_this.stopDirectMoving();
_this.animSizeAndPos(newProp.x, newProp.y, newProp.w, newProp.h);
return false;
}
//changers
LocationChanger.prototype.adaptsToContainer = function () {
if(this.$content) {
var iterimScale = this.$content.width() / this.contentFullSize.w;
iterimScale = (iterimScale > 1) ? 1 : iterimScale;
this.animStop();
this.stopMoving();
this.stopDirectMoving();
this.setProperties(null, null, iterimScale, true);
}
}
LocationChanger.prototype.beginZooming = function (t) {
var delta = (t == 'Z') ? 1 : -1,
data = {_this : this},
mivCenter = {'x' : (this.$mivHol.width() / 2), 'y' : (this.$mivHol.height() / 2)},
mivHolOff = this.$mivHol.offset(),
mouseGivCenter = {'x' : (mivCenter.x + mivHolOff.left), 'y' : (mivCenter.y + mivHolOff.top)},
e = {data : data, pageX : mouseGivCenter.x, pageY : mouseGivCenter.y }; //pseudo event object
this.animStop(true);
this.stopMoving();
this.stopDirectMoving();
if(!this.movingIntreval) {
this.movingIntreval = setInterval(function(_this, e, delta){
return function () {
_this.zooming(e, delta);
};
}(this, e, delta), this.sett.animTime / 5);
}
this.zooming(e, delta);
}
LocationChanger.prototype.zooming = function (e, delta) {
var newScale = (delta > 0) ? this.sm.nextScale() : this.sm.prevScale(),
newProp = this.calculateScale(e, newScale);
this.animStop();
this.animSizeAndPos(newProp.x, newProp.y, newProp.w, newProp.h);
if(this.sett.fitToViewportShortSide) {
if(newScale >= 1 || newProp.w <= this.$mivHol.width() || newProp.h <= this.$mivHol.height()) {
this.stopZooming();
}
} else {
if(newScale >= 1 || (newProp.w <= this.$mivHol.width() && newProp.h <= this.$mivHol.height())) {
this.stopZooming();
}
}
}
LocationChanger.prototype.stopZooming = function () {
this.stopMoving();
}
LocationChanger.prototype.beginDirectMove = function (direct) {
this.animStop(true);
this.stopMoving();
this.sm.setScale(this.$content.width() / this.contentFullSize.w);
this.speedX = this.speedY = 0;
switch(direct) {
case 'U':
this.speedY = -50000 / this.sett.animTime;
break;
case 'D':
this.speedY = 50000 / this.sett.animTime;
break;
case 'L':
this.speedX = -50000 / this.sett.animTime;
break;
case 'R':
this.speedX = 50000 / this.sett.animTime;
break;
}
if(!this.movingDirectIntreval && (this.speedX || this.speedY)) {
this.movingDirectIntreval = setInterval(function(_this){
return function () {
_this.directMoveWithInertia();
};
}(this), 10);
}
}
LocationChanger.prototype.directMoveWithInertia = function () {
var holLeft = this.$contentHol.position().left,
holTop = this.$contentHol.position().top,
targetX = Math.ceil(holLeft + this.speedX),
targetY = Math.ceil(holTop + this.speedY);
if(!this.movingIntreval) {
this.movingIntreval = setInterval(function(_this){
return function () {
_this.moveWithInertia();
};
}(this), 10);
}
safeTarget = this.getSafeTarget(targetX, targetY, this.speedX, this.speedY);
this.targetX = Math.round(safeTarget.x);
this.targetY = Math.round(safeTarget.y);
}
LocationChanger.prototype.stopDirectMoving = function () {
clearInterval(this.movingDirectIntreval);
this.movingDirectIntreval = null;
}
LocationChanger.prototype.dragging = function (e, type) {
var draggIner = this.sett.draggInertia,
mousePageCoor = this.mousePageCoor(e),
draggShftX = mousePageCoor.x - this.lastMousePageCoor.x,
draggShftY = mousePageCoor.y - this.lastMousePageCoor.y;
if(type == 'inertia' && this.lastDragg) {
this.draggingWithInertia(this.lastDragg.x * draggIner, this.lastDragg.y * draggIner);
} else {
this.draggingHard(draggShftX, draggShftY);
}
this.lastDragg = {x : (Math.abs(draggShftX) < 5) ? 0 : draggShftX,
y : (Math.abs(draggShftY) < 5) ? 0 : draggShftY};
this.lastMousePageCoor = mousePageCoor;
}
LocationChanger.prototype.draggingHard = function (draggShftX, draggShftY) {
var contentHolPos = this.$contentHol.position()
targetX = contentHolPos.left + draggShftX,
targetY = contentHolPos.top + draggShftY,
safeTarget = this.getSafeTarget(targetX, targetY, draggShftX, draggShftY);
this.animStop();
this.$contentHol.css({'left' : safeTarget.x, 'top' : safeTarget.y});
}
LocationChanger.prototype.draggingWithInertia = function (draggShftX, draggShftY) {
var targetX = this.targetX + draggShftX,
targetY = this.targetY + draggShftY,
safeTarget;
if(!this.movingIntreval) {
this.movingIntreval = setInterval(function(_this){
return function () {
_this.moveWithInertia();
};
}(this), 10);
targetX = this.$contentHol.position().left + draggShftX;
targetY = this.$contentHol.position().top + draggShftY;
}
safeTarget = this.getSafeTarget(targetX, targetY, draggShftX, draggShftY);
this.targetX = Math.round(safeTarget.x);
this.targetY = Math.round(safeTarget.y);
}
LocationChanger.prototype.getSafeTarget = function (targetX, targetY, moveDirectX, moveDirectY) {
var limits = this.getLimit(this.sm.getScale()),
xMin = limits.xMin,
xMax = limits.xMax,
yMin = limits.yMin,
yMax = limits.yMax,
mivHolW = this.$mivHol.width(),
mivHolH = this.$mivHol.height(),
mivHolCentX = mivHolW/2,
mivHolCentY = mivHolH/2,
newContentW = this.contentFullSize.w * this.sm.getScale(),
newContentH = this.contentFullSize.h * this.sm.getScale();
/*Y*/
if((moveDirectY < 0) && (targetY < yMin)) { //move up limit
targetY = yMin;
} else if((moveDirectY > 0) && (targetY > yMax)) { // move down limit
targetY = yMax;
}
if (newContentH < mivHolH)
{
targetY = mivHolCentY - newContentH / 2;
}
/*X*/
if((moveDirectX < 0) && (targetX < xMin)) { //move left limit
targetX = xMin;
} else if((moveDirectX > 0) && (targetX > xMax)) { //move right limit
targetX = xMax;
}
if (newContentW < mivHolW)
{
targetX = mivHolCentX - newContentW / 2;
}
return {x : targetX, y : targetY};
}
LocationChanger.prototype.moveWithInertia = function () {
var contentHolPos = this.$contentHol.position(),
damping = this.sett.dragSmooth,
distX, distY;
contentHolPos.left = Math.ceil(contentHolPos.left);
contentHolPos.top = Math.ceil(contentHolPos.top);
distX = (this.targetX - contentHolPos.left)/damping;
distY = (this.targetY - contentHolPos.top)/damping;
if(Math.abs(distX) < 1) {
distX = (distX > 0) ? 1 : -1
}
if(Math.abs(distY) < 1) {
distY = (distY > 0) ? 1 : -1
}
if(contentHolPos.left == this.targetX) {
distX = 0;
}
if(contentHolPos.top == this.targetY) {
distY = 0;
}
this.$contentHol.css({'left' : contentHolPos.left + distX, 'top' : contentHolPos.top + distY});
this.dispatchEventChange();
if(contentHolPos.left == this.targetX && contentHolPos.top == this.targetY) {
this.stopDirectMoving();
this.stopMoving();
}
}
LocationChanger.prototype.stopMoving = function () {
clearInterval(this.movingIntreval);
this.movingIntreval = null;
}
LocationChanger.prototype.positioning = function (e) {
var _this = e.data._this,
newProp = _this.calculatePosInCenter(e);
_this.animStop();
_this.stopMoving();
_this.stopDirectMoving();
_this.animSizeAndPos(newProp.x, newProp.y);
}
LocationChanger.prototype.setProperties = function (x, y, scale, noAnim) {
if(this.$content) {
var data = {_this : this},
mivCenter = {'x' : (this.$mivHol.width() / 2), 'y' : (this.$mivHol.height() / 2)},
mivHolOff = this.$mivHol.offset(),
mouseGivCenter = {'x' : (mivCenter.x + mivHolOff.left), 'y' : (mivCenter.y + mivHolOff.top)},
e = {data : data, pageX : mouseGivCenter.x, pageY : mouseGivCenter.y }, //pseudo event object
contentHolPos = this.$contentHol.position(),
newProp, iterimScale,
newX = contentHolPos.left, newY = contentHolPos.top, newW = this.$content.width(), newH = this.$content.height();
x = parseFloat(x);
y = parseFloat(y);
scale = parseFloat(scale);
if(!isNaN(scale)) {
if(scale > 1) {
scale = 1;
}
newProp = this.calculateScale(e, scale);
newX = newProp.x;
newY = newProp.y;
newW = newProp.w;
newH = newProp.h;
}
iterimScale = newW / this.contentFullSize.w;
if(!isNaN(x)) {
newX = -(x * iterimScale) + mivCenter.x;
}
if(!isNaN(y)) {
newY = -(y * iterimScale) + mivCenter.y;
}
this.animStop();
this.stopMoving();
this.stopDirectMoving();
this.animSizeAndPos(newX, newY, newW, newH, noAnim);
}
}
LocationChanger.prototype.calculatePosInCenter = function (e) {
var contentHolPos = this.$contentHol.position(),
mivHolOff = this.$mivHol.offset(),
mivCenter = {'x' : (this.$mivHol.width() / 2), 'y' : (this.$mivHol.height() / 2)},
mousePageCoor = this.mousePageCoor(e),
mouseHolCoor = {'x' : (mousePageCoor.x - mivHolOff.left), 'y' : (mousePageCoor.y - mivHolOff.top)},
shftX, shftY,
newX, newY;
shftX = mivCenter.x - mouseHolCoor.x;
shftY = mivCenter.y - mouseHolCoor.y;
newX = contentHolPos.left + shftX;
newY = contentHolPos.top + shftY;
return {x : newX, y : newY, 'shftX' : shftX, 'shftY' : shftY};
}
LocationChanger.prototype.calculateScale = function (e, newScale) {
var mivHolOff = this.$mivHol.offset(),
contentOff = this.$content.offset(),
mousePageCoor = this.mousePageCoor(e),
iterimScale,
mouseContentCoor,
newX, newY, newW, newH;
newScale = this.getSafeScale(newScale);
this.sm.setScale(newScale);
iterimScale = this.$content.width() / this.contentFullSize.w;
mouseContentCoor = {'x' : (mousePageCoor.x - contentOff.left) / iterimScale,
'y' : (mousePageCoor.y - contentOff.top) / iterimScale};
newW = Math.round(this.contentFullSize.w * newScale);
newH = Math.round(this.contentFullSize.h * newScale);
newX = Math.round(contentOff.left - mivHolOff.left + mouseContentCoor.x * (iterimScale - newScale));
newY = Math.round(contentOff.top - mivHolOff.top + mouseContentCoor.y * (iterimScale - newScale));
return {x : newX, y : newY, w : newW, h : newH};
}
LocationChanger.prototype.getSafeScale = function (newScale) {
var safeScale = (newScale <= 0) ? 0.00001 : newScale,
mivHolW = this.$mivHol.width(),
mivHolH = this.$mivHol.height(),
defContentW = this.contentFullSize.w,
defContentH = this.contentFullSize.h,
newContentW = defContentW * safeScale,
newContentH = defContentH * safeScale,
horScale = mivHolW/defContentW,
verScale = mivHolH/defContentH,
mivHolProp = mivHolW/mivHolH, //viewport proportion; p < 1 - vertical; p > 1 - horizontal
contentProp = newContentW/newContentH; //content proportion
if (!this.sett.contentSizeOver100 && defContentW <= mivHolW && defContentH <= mivHolH)
{
safeScale = 1;
return safeScale;
}
if(this.sett.fitToViewportShortSide) {
if(newContentW < mivHolW || newContentH < mivHolH) {
horScale = mivHolW / this.contentFullSize.w;
verScale = mivHolH / this.contentFullSize.h;
safeScale = Math.max(horScale, verScale);
}
} else {
if (newContentW < mivHolW && newContentH < mivHolH) {
if (contentProp <= mivHolProp)
safeScale = verScale;
else
safeScale = horScale;
}
}
return safeScale;
}
LocationChanger.prototype.getLimit = function (inScale) {
var xMin = -(Math.round(this.contentFullSize.w * inScale) - this.$mivHol.width()),
yMin = -(Math.round(this.contentFullSize.h * inScale) - this.$mivHol.height());
return {'xMin' : xMin, 'xMax' : 0, 'yMin' : yMin, 'yMax' : 0};
}
LocationChanger.prototype.getSafeXY = function (x, y, inScale) {
var limits = this.getLimit(inScale),
mivHolW = this.$mivHol.width(),
mivHolH = this.$mivHol.height(),
mivHolCentX = mivHolW/2,
mivHolCentY = mivHolH/2,
defContentW = this.contentFullSize.w,
defContentH = this.contentFullSize.h,
newContentW = defContentW * inScale,
newContentH = defContentH * inScale,
safeX = x, safeY = y;
/*X*/
if (newContentW < mivHolW)
{
if (x < limits.xMin || x > limits.xMax)
safeX = mivHolCentX - newContentW / 2;
}
else
{
if(x < limits.xMin) {
safeX = limits.xMin;
} else if(x > limits.xMax) {
safeX = limits.xMax;
}
}
/*Y*/
if (newContentH < mivHolH)
{
if (y < limits.yMin || y > limits.yMax)
safeY = mivHolCentY - newContentH / 2;
}
else
{
if(y < limits.yMin) {
safeY = limits.yMin;
} else if(y > limits.yMax) {
safeY = limits.yMax;
}
}
return {'x' : safeX, 'y' : safeY};
}
LocationChanger.prototype.animSizeAndPos = function (x, y, w, h, noAnim) {
var safeXY, iterimScale,
changeHandler = function(_this) {
return function() {
_this.dispatchEventChange();
}
}(this);
if(w != undefined) {
iterimScale = w / this.contentFullSize.w;
} else {
iterimScale = this.$content.width() / this.contentFullSize.w;
}
if(x != undefined && y != undefined) {
safeXY = this.getSafeXY(x, y, iterimScale);
if(noAnim) {
this.$contentHol.css({ left : safeXY.x, top : safeXY.y });
this.dispatchEventChange();
} else {
this.$contentHol.animate({ left : safeXY.x, top : safeXY.y },
{ duration : this.sett.animTime, easing : 'easeOutCubic',
step : changeHandler,
complete : changeHandler });
}
}
if(w != undefined && h != undefined) {
if(noAnim) {
this.$content.css({ width : w, height : h });
this.dispatchEventChange();
} else {
this.$content.animate({ width : w, height : h },
{ duration : this.sett.animTime, easing : 'easeOutCubic',
step : changeHandler,
complete : changeHandler });
}
}
}
LocationChanger.prototype.animStop = function (saveScale) {
if(this.$contentHol && this.$content) {
this.$contentHol.stop().clearQueue();
this.$content.stop().clearQueue();
if(saveScale) {
this.sm.setScale(this.$content.width() / this.contentFullSize.w);
}
this.dispatchEventChange();
}
}
LocationChanger.prototype.dispatchEventChange = function () {
var e, a = {},
contentHolPos = this.$contentHol.position(),
limits = this.getLimit(this.sm.getScale()),
contnetW = this.$content.width(),
contnetH = this.$content.height();
/*position*/
a.allowDown = (Math.ceil(contentHolPos.top) < Math.ceil(limits.yMax));
a.allowUp = (Math.ceil(contentHolPos.top) > Math.ceil(limits.yMin));
a.allowRight = (Math.ceil(contentHolPos.left) < Math.ceil(limits.xMax));
a.allowLeft = (Math.ceil(contentHolPos.left) > Math.ceil(limits.xMin));
/*scale*/
a.allowZoom = (contnetW / this.contentFullSize.w < 1);
if(this.sett.fitToViewportShortSide) {
a.allowUnzoom = (contnetW > this.$mivHol.width() && contnetH > this.$mivHol.height());
} else {
a.allowUnzoom = (contnetW > this.$mivHol.width() || contnetH > this.$mivHol.height());
}
if(!this.allowCompare(a, this.allow)) {
e = $.Event("mivChange", a);
this.$mainHolder.trigger(e);
}
this.allow = a;
}
LocationChanger.prototype.allowCompare = function (_new, _old) {
var res = true;
$.each(_new, function(k){
if(_new[k] != _old[k]) {
res = false;
return;
}
});
return res;
}
/*scale manager*/
var ScaleManager = function() {
this.step = .1;
this.curr = 1;
};
ScaleManager.prototype.getScale = function() {
return this.curr;
}
ScaleManager.prototype.setScale = function(v) {
this.curr = v;
}
ScaleManager.prototype.nextScale = function() {
var scale = this.curr + this.step;
if(scale > 1) {
this.curr = 1;
} else {
this.curr = scale;
}
return this.getScale();
}
ScaleManager.prototype.prevScale = function() {
var scale = this.curr - this.step;
if(scale < this.step) {
this.curr = this.step;
} else {
this.curr = scale;
}
return this.getScale();
}
/**/
/*content loaders*/
var LoaderImgContent = function (url, $imgHolder, callback) {
var $img = $('<img/>');
this.callback = callback;
$img.one('load', function (that){
return function (e) {
that.loadComplete(e);
}
}(this));
$imgHolder.append($img);
$img.attr('src',url); //load
}
LoaderImgContent.prototype.loadComplete = function(e) {
if(this.callback) {
this.callback($(e.currentTarget));
}
}
LoaderImgContent.prototype.dispose = function() {
this.callback = null;
}
/**/
})(jQuery);