mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-11-30 03:43:40 +01:00
605 lines
21 KiB
JavaScript
605 lines
21 KiB
JavaScript
/**
|
||
* EGroupware eTemplate2 - JS object implementing expose view of media and a gallery view
|
||
*
|
||
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
|
||
* @package etemplate
|
||
* @subpackage api
|
||
* @link http://www.egroupware.org
|
||
* @author Hadi Nategh <hn[at]stylite.de>
|
||
* @copyright Stylite AG
|
||
* @version $Id$
|
||
*/
|
||
|
||
/*egw:uses
|
||
jquery.jquery;
|
||
/phpgwapi/js/jquery/blueimp/js/blueimp-gallery.min.js;
|
||
*/
|
||
|
||
/**
|
||
* Interface all exposed widget must support in order to getMedia for the blueimp Gallery.
|
||
*/
|
||
var et2_IExposable = new Interface(
|
||
{
|
||
/**
|
||
* get media an array of media objects to pass to blueimp Gallery
|
||
* @param {array} _attrs
|
||
*/
|
||
getMedia: function(_attrs) {}
|
||
});
|
||
|
||
/**
|
||
* This function extends the given widget with blueimp gallery plugin
|
||
*
|
||
* @param {type} widget
|
||
* @returns {widget}
|
||
*/
|
||
function expose (widget)
|
||
{
|
||
// Common expose functions
|
||
var THUMBNAIL_MAX = 100;
|
||
|
||
// Minimum data to qualify as an image and not cause errors
|
||
var IMAGE_DEFAULT = {
|
||
title: egw.lang('loading'),
|
||
href: '',
|
||
type: 'image/png',
|
||
thumbnail: '',
|
||
loading: true
|
||
};
|
||
|
||
// For filtering to only show things we can handle
|
||
var mime_regex = new RegExp(/(video\/(mp4|ogg|webm))|(image\/:*(?!tif|x-xcf|pdf))/);
|
||
|
||
// IE only supports video/mp4 mime type
|
||
if (navigator.userAgent.match(/(MSIE|Trident)/)) mime_regex.compile(/(video\/mp4)|(image\/:*(?!tif|x-xcf|pdf))/);
|
||
|
||
// Only one gallery
|
||
var gallery = null;
|
||
|
||
/**
|
||
* See if the current widget is in a nextmatch, as this allows us to display
|
||
* thumbnails underneath
|
||
*
|
||
* @param {et2_IExposable} widget
|
||
* @returns {et2_nextmatch | null}
|
||
*/
|
||
var find_nextmatch = function(widget)
|
||
{
|
||
var current = widget;
|
||
var nextmatch = null;
|
||
while(nextmatch == null && current)
|
||
{
|
||
current = current.getParent();
|
||
if(typeof current !='undefined' && current.instanceOf(et2_nextmatch))
|
||
{
|
||
nextmatch = current;
|
||
}
|
||
}
|
||
// No nextmatch, or nextmatch not quite ready
|
||
// At the moment only filemanger nm would work
|
||
// as gallery, thus we disable other nestmatches
|
||
// to build up gallery but filemanager
|
||
if(nextmatch == null || nextmatch.controller == null || !nextmatch.dom_id.match(/filemanager/,'ig')) return null;
|
||
|
||
return nextmatch;
|
||
};
|
||
|
||
/**
|
||
* Read images out of the data for the nextmatch
|
||
*
|
||
* @param {et2_nextmatch} nm
|
||
* @param {Object[]} images
|
||
* @param {number} start_at
|
||
* @returns {undefined}
|
||
*/
|
||
var read_from_nextmatch = function(nm, images, start_at)
|
||
{
|
||
if(!start_at) start_at = 0;
|
||
var image_index = start_at;
|
||
var stop = Math.max.apply(null,Object.keys(nm.controller._indexMap));
|
||
|
||
for(var i = start_at; i <= stop; i++)
|
||
{
|
||
if(!nm.controller._indexMap[i] || !nm.controller._indexMap[i].uid)
|
||
{
|
||
// Returning instead of using IMAGE_DEFAULT means we stop as
|
||
// soon as a hole is found, instead of getting everything that is
|
||
// available. The gallery can't fill in the holes.
|
||
images[image_index++] = IMAGE_DEFAULT;
|
||
continue;
|
||
}
|
||
var uid = nm.controller._indexMap[i].uid;
|
||
if(!uid) continue;
|
||
var data = egw.dataGetUIDdata(uid);
|
||
if(data && data.data && data.data.mime && mime_regex.test(data.data.mime))
|
||
{
|
||
var media = this.getMedia(data.data);
|
||
images[image_index++] = jQuery.extend({}, data.data, media[0]);
|
||
}
|
||
}
|
||
};
|
||
|
||
/**
|
||
* Set a particular index/image in the gallery instead of just appending
|
||
* it to the end
|
||
*
|
||
* @param {integer} index
|
||
* @param {Object} image
|
||
* @returns {undefined}
|
||
*/
|
||
var set_slide = function(index, image)
|
||
{
|
||
var active = (index == gallery.index);
|
||
|
||
// Pad with blanks until length is right
|
||
while(index > gallery.getNumber())
|
||
{
|
||
gallery.add([jQuery.extend({}, IMAGE_DEFAULT)]);
|
||
}
|
||
|
||
// Don't bother with adding a default, we just did that
|
||
if(image.loading)
|
||
{
|
||
//Add load class if it's really a slide with error
|
||
if (gallery.slidesContainer.find('[data-index="'+index+'"]').hasClass(gallery.options.slideErrorClass))
|
||
$j(gallery.slides[index])
|
||
.addClass(gallery.options.slideLoadingClass)
|
||
.removeClass(gallery.options.slideErrorClass);
|
||
return;
|
||
}
|
||
// Remove the loading class if the slide is loaded
|
||
else
|
||
{
|
||
$j(gallery.slides[index]).removeClass(gallery.options.slideLoadingClass);
|
||
}
|
||
|
||
// Just use add to let gallery create everything it needs
|
||
var new_index = gallery.num;
|
||
gallery.add([image]);
|
||
|
||
// Move it to where we want it.
|
||
// Gallery uses arrays and indexes and has several internal variables
|
||
// that need to be updated.
|
||
//
|
||
// list
|
||
gallery.list[index] = gallery.list[new_index];
|
||
gallery.list.splice(new_index,1);
|
||
|
||
// indicators & slides
|
||
var dom_nodes = ['indicators','slides'];
|
||
for(var i in dom_nodes)
|
||
{
|
||
var var_name = dom_nodes[i];
|
||
// Remove old one from DOM
|
||
$j(gallery[var_name][index]).remove();
|
||
// Move new one into it's place in gallery
|
||
gallery[var_name][index] = gallery[var_name][new_index];
|
||
// Move into place in DOM
|
||
var node = $j(gallery[var_name][index]);
|
||
node.attr('data-index', index)
|
||
.insertAfter($j("[data-index='"+(index-1)+"']",node.parent()));
|
||
if(active) node.addClass(gallery.options.activeIndicatorClass);
|
||
gallery[var_name].splice(new_index,1);
|
||
}
|
||
if(active)
|
||
{
|
||
gallery.activeIndicator = $j(gallery.indicators[index]);
|
||
}
|
||
|
||
// positions
|
||
gallery.positions[index] = active ? 0 : (index > gallery.index ? gallery.slideWidth : -gallery.slideWidth);
|
||
gallery.positions.splice(new_index,1);
|
||
|
||
// elements - removing will allow to re-do the slide
|
||
if(gallery.elements[index])
|
||
{
|
||
delete gallery.elements[index];
|
||
gallery.loadElement(index);
|
||
}
|
||
|
||
// Remove the one we just added
|
||
gallery.num -= 1;
|
||
};
|
||
|
||
return widget.extend([et2_IExposable],{
|
||
|
||
/**
|
||
* Initialize the expose media gallery
|
||
*/
|
||
init: function()
|
||
{
|
||
this._super.apply(this, arguments);
|
||
this.mime_regexp = mime_regex;
|
||
var self=this;
|
||
this.expose_options = {
|
||
// The Id, element or querySelector of the gallery widget:
|
||
container: '#blueimp-gallery',
|
||
// The tag name, Id, element or querySelector of the slides container:
|
||
slidesContainer: 'div',
|
||
// The tag name, Id, element or querySelector of the title element:
|
||
titleElement: 'h3',
|
||
// The class to add when the gallery is visible:
|
||
displayClass: 'blueimp-gallery-display',
|
||
// The class to add when the gallery controls are visible:
|
||
controlsClass: 'blueimp-gallery-controls',
|
||
// The class to add when the gallery only displays one element:
|
||
singleClass: 'blueimp-gallery-single',
|
||
// The class to add when the left edge has been reached:
|
||
leftEdgeClass: 'blueimp-gallery-left',
|
||
// The class to add when the right edge has been reached:
|
||
rightEdgeClass: 'blueimp-gallery-right',
|
||
// The class to add when the automatic slideshow is active:
|
||
playingClass: 'blueimp-gallery-playing',
|
||
// The class for all slides:
|
||
slideClass: 'slide',
|
||
// The slide class for loading elements:
|
||
slideLoadingClass: '',
|
||
// The slide class for elements that failed to load:
|
||
slideErrorClass: 'slide-error',
|
||
// The class for the content element loaded into each slide:
|
||
slideContentClass: 'slide-content',
|
||
// The class for the "toggle" control:
|
||
toggleClass: 'toggle',
|
||
// The class for the "prev" control:
|
||
prevClass: 'prev',
|
||
// The class for the "next" control:
|
||
nextClass: 'next',
|
||
// The class for the "close" control:
|
||
closeClass: 'close',
|
||
// The class for the "play-pause" toggle control:
|
||
playPauseClass: 'play-pause',
|
||
// The class to add for fullscreen button option
|
||
fullscreenClass:'fullscreen',
|
||
// The list object property (or data attribute) with the object type:
|
||
typeProperty: 'type',
|
||
// The list object property (or data attribute) with the object title:
|
||
titleProperty: 'title',
|
||
// The list object property (or data attribute) with the object URL:
|
||
urlProperty: 'href',
|
||
// The gallery listens for transitionend events before triggering the
|
||
// opened and closed events, unless the following option is set to false:
|
||
displayTransition: true,
|
||
// Defines if the gallery slides are cleared from the gallery modal,
|
||
// or reused for the next gallery initialization:
|
||
clearSlides: true,
|
||
// Defines if images should be stretched to fill the available space,
|
||
// while maintaining their aspect ratio (will only be enabled for browsers
|
||
// supporting background-size="contain", which excludes IE < 9).
|
||
// Set to "cover", to make images cover all available space (requires
|
||
// support for background-size="cover", which excludes IE < 9):
|
||
stretchImages: true,
|
||
// Toggle the controls on pressing the Return key:
|
||
toggleControlsOnReturn: true,
|
||
// Toggle the automatic slideshow interval on pressing the Space key:
|
||
toggleSlideshowOnSpace: true,
|
||
// Navigate the gallery by pressing left and right on the keyboard:
|
||
enableKeyboardNavigation: true,
|
||
// Close the gallery on pressing the ESC key:
|
||
closeOnEscape: true,
|
||
// Close the gallery when clicking on an empty slide area:
|
||
closeOnSlideClick: false,
|
||
// Close the gallery by swiping up or down:
|
||
closeOnSwipeUpOrDown: true,
|
||
// Emulate touch events on mouse-pointer devices such as desktop browsers:
|
||
emulateTouchEvents: true,
|
||
// Stop touch events from bubbling up to ancestor elements of the Gallery:
|
||
stopTouchEventsPropagation: false,
|
||
// Hide the page scrollbars:
|
||
hidePageScrollbars: true,
|
||
// Stops any touches on the container from scrolling the page:
|
||
disableScroll: true,
|
||
// Carousel mode (shortcut for carousel specific options):
|
||
carousel: true,
|
||
// Allow continuous navigation, moving from last to first
|
||
// and from first to last slide:
|
||
continuous: false,
|
||
// Remove elements outside of the preload range from the DOM:
|
||
unloadElements: true,
|
||
// Start with the automatic slideshow:
|
||
startSlideshow: false,
|
||
// Delay in milliseconds between slides for the automatic slideshow:
|
||
slideshowInterval: 3000,
|
||
// The starting index as integer.
|
||
// Can also be an object of the given list,
|
||
// or an equal object with the same url property:
|
||
index: 0,
|
||
// The number of elements to load around the current index:
|
||
preloadRange: 2,
|
||
// The transition speed between slide changes in milliseconds:
|
||
transitionSpeed: 400,
|
||
//Hide controls when the slideshow is playing
|
||
hideControlsOnSlideshow: true,
|
||
//Request fullscreen on slide show
|
||
toggleFullscreenOnSlideShow:true,
|
||
// The transition speed for automatic slide changes, set to an integer
|
||
// greater 0 to override the default transition speed:
|
||
slideshowTransitionSpeed: undefined,
|
||
// The tag name, Id, element or querySelector of the indicator container:
|
||
indicatorContainer: 'ol',
|
||
// The class for the active indicator:
|
||
activeIndicatorClass: 'active',
|
||
// The list object property (or data attribute) with the thumbnail URL,
|
||
// used as alternative to a thumbnail child element:
|
||
thumbnailProperty: 'thumbnail',
|
||
// Defines if the gallery indicators should display a thumbnail:
|
||
thumbnailIndicators: true,
|
||
//thumbnail with image tag
|
||
thumbnailWithImgTag: true,
|
||
// Callback function executed when the Gallery is initialized.
|
||
// Is called with the gallery instance as "this" object:
|
||
onopen: jQuery.proxy(this.expose_onopen,this),
|
||
// Callback function executed when the Gallery has been initialized
|
||
// and the initialization transition has been completed.
|
||
// Is called with the gallery instance as "this" object:
|
||
onopened: jQuery.proxy(this.expose_onopened,this),
|
||
// Callback function executed on slide change.
|
||
// Is called with the gallery instance as "this" object and the
|
||
// current index and slide as arguments:
|
||
onslide: function(index, slide) {
|
||
// Call our onslide method, and include gallery as an attribute
|
||
self.expose_onslide.apply(self, [this, index,slide]);
|
||
},
|
||
// Callback function executed after the slide change transition.
|
||
// Is called with the gallery instance as "this" object and the
|
||
// current index and slide as arguments:
|
||
onslideend: function(index, slide) {
|
||
// Call our onslide method, and include gallery as an attribute
|
||
self.expose_onslideend.apply(self, [this, index,slide]);
|
||
},
|
||
//// Callback function executed on slide content load.
|
||
// Is called with the gallery instance as "this" object and the
|
||
// slide index and slide element as arguments:
|
||
onslidecomplete: function(index, slide) {
|
||
// Call our onslide method, and include gallery as an attribute
|
||
self.expose_onslidecomplete.apply(self, [this, index,slide]);
|
||
},
|
||
//// Callback function executed when the Gallery is about to be closed.
|
||
// Is called with the gallery instance as "this" object:
|
||
onclose:jQuery.proxy(this.expose_onclose,this),
|
||
// Callback function executed when the Gallery has been closed
|
||
// and the closing transition has been completed.
|
||
// Is called with the gallery instance as "this" object:
|
||
onclosed: jQuery.proxy(this.expose_onclosed,this)
|
||
};
|
||
var $body = jQuery('body');
|
||
if ($body.find('#blueimp-gallery').length == 0)
|
||
{
|
||
// Gallery Main DIV container
|
||
var $expose_node = jQuery(document.createElement('div')).attr({id:"blueimp-gallery", class:"blueimp-gallery"});
|
||
// Create Gallery DOM NODE
|
||
$expose_node.append('<div class="slides"></div><h3 class="title"></h3><a class="prev">‹</a><a class="next">›</a><a title="'+ egw().lang('Close') + '" class="close">×</a><a title="'+ egw().lang('Play/Pause') + '" class="play-pause"></a><a title="'+ egw().lang('Fullscreen') + '" class="fullscreen"></a><a title="'+ egw().lang('Save') +'" class="download"></a><ol class="indicator"></ol>');
|
||
// Append the gallery Node to DOM
|
||
$body.append($expose_node);
|
||
}
|
||
|
||
},
|
||
|
||
set_value:function (_value)
|
||
{
|
||
if (typeof this._super == 'undefined') return;
|
||
|
||
this._super.apply(this,arguments);
|
||
// Do not run set value of expose if expose_view is not set
|
||
// it causes a wired error on nested image widgets which
|
||
// seems the expose is not its child widget
|
||
if (!this.options.expose_view )
|
||
{
|
||
return;
|
||
}
|
||
|
||
|
||
var self=this;
|
||
// If the media type is not supported do not bind the click handler
|
||
if (!_value || typeof _value.mime != 'string' || !_value.mime.match(mime_regex,'ig') || typeof _value.download_url == 'undefined')
|
||
{
|
||
return;
|
||
}
|
||
if (typeof this.options.expose_view != 'undefined' && this.options.expose_view )
|
||
{
|
||
jQuery(this.node).on('click', function(event){
|
||
// Do not trigger expose view if one of the operator keys are held
|
||
if (!event.altKey && !event.ctrlKey && !event.shiftKey && !event.metaKey) self._init_blueimp_gallery(event, _value);
|
||
}).addClass('et2_clickable');
|
||
}
|
||
},
|
||
|
||
_init_blueimp_gallery: function (event, _value)
|
||
{
|
||
var mediaContent = [];
|
||
var nm = find_nextmatch(this);
|
||
var current_index = 0;
|
||
if(nm && !this._is_target_indepth(nm,event.target))
|
||
{
|
||
// Get the row that was clicked, find its index in the list
|
||
var current_entry = nm.controller.getRowByNode(event.target);
|
||
|
||
// But before it goes, we'll pull everything we can
|
||
read_from_nextmatch.call(this, nm, mediaContent);
|
||
// find current_entry in array and set it's array-index
|
||
for(var i=0; i < mediaContent.length; i++)
|
||
{
|
||
if ('filemanager::'+mediaContent[i].path == current_entry.uid)
|
||
{
|
||
current_index = i;
|
||
break;
|
||
}
|
||
}
|
||
|
||
// This will trigger nm to refresh and get just the ones we can handle
|
||
// but it might take a while, so do it later - make sure our current
|
||
// one is loaded first.
|
||
window.setTimeout(function() {
|
||
nm.applyFilters({col_filter: {mime: '/'+mime_regex.source+'/'}});
|
||
},1);
|
||
}
|
||
else
|
||
{
|
||
mediaContent = this.getMedia(_value);
|
||
// Do not show thumbnail indicator on single expose view
|
||
this.expose_options.thumbnailIndicators = false;
|
||
}
|
||
this.expose_options.index = current_index;
|
||
gallery = blueimp.Gallery(mediaContent, this.expose_options);
|
||
},
|
||
|
||
/**
|
||
* Check if clicked target from nm is in depth
|
||
*
|
||
* @param nm nextmatch widget
|
||
* @param target selected target dom node
|
||
*
|
||
* @return {boolean} returns false if target is not in depth otherwise True
|
||
*/
|
||
_is_target_indepth: function (nm, target){
|
||
var res = false;
|
||
if (nm)
|
||
{
|
||
if (!target)
|
||
{
|
||
var target = this.getDOMNode();
|
||
}
|
||
var entry = nm.controller.getRowByNode(target);
|
||
if (entry && entry.controller.getDepth()>0)
|
||
{
|
||
res = true;
|
||
}
|
||
}
|
||
return res;
|
||
},
|
||
expose_onopen: function (event){},
|
||
expose_onopened: function (event){
|
||
// Check to see if we're in a nextmatch, do magic
|
||
var nm = find_nextmatch(this);
|
||
var self=this;
|
||
if(nm)
|
||
{
|
||
// Add scrolling to the indicator list
|
||
var total_count = nm.controller._grid.getTotalCount();
|
||
if(total_count >= gallery.num)
|
||
{
|
||
var $indicator = gallery.container.find('.indicator');
|
||
$indicator.off()
|
||
.addClass('paginating')
|
||
.swipe(function(event, direction, distance) {
|
||
if(direction == jQuery.fn.swipe.directions.LEFT)
|
||
{
|
||
distance *= -1;
|
||
}
|
||
else if(direction == jQuery.fn.swipe.directions.RIGHT)
|
||
{
|
||
// OK.
|
||
}
|
||
else
|
||
{
|
||
return;
|
||
}
|
||
$j(this).css('left',min(0,parseInt($j(this).css('left'))-(distance*30))+'px');
|
||
});
|
||
// Bind the mousewheel handler for FF (DOMMousewheel), and other browsers (mousewheel)
|
||
$indicator.bind('mousewheel DOMMousewheel',function(event, _delta) {
|
||
var delta = _delta || event.originalEvent.wheelDelta / 120;
|
||
if(delta > 0 && parseInt($j(this).css('left')) > gallery.container.width() / 2) return;
|
||
|
||
//Reload next pictures into the gallery by scrolling on thumbnails
|
||
if (delta<0 && $j(this).width() + parseInt($j(this).css('left')) < gallery.container.width())
|
||
{
|
||
var nextIndex = gallery.indicatorContainer.find('[title="loading"]')[0];
|
||
if (nextIndex) self.expose_onslideend(gallery,nextIndex.dataset.index -1);
|
||
return;
|
||
}
|
||
// Move it about 5 indicators
|
||
$j(this).css('left',parseInt($j(this).css('left'))-(-delta*gallery.activeIndicator.width()*5)+'px');
|
||
|
||
event.preventDefault();
|
||
});
|
||
}
|
||
}
|
||
},
|
||
/**
|
||
* Trigger on slide left/right
|
||
* @param {Gallery} gallery
|
||
* @param {integer} index
|
||
* @param {DOMNode} slide
|
||
*/
|
||
expose_onslide: function (gallery, index, slide){
|
||
if (typeof this._super == 'undefined') return;
|
||
// First let parent try
|
||
this._super.apply(this, arguments);
|
||
var nm = find_nextmatch(this);
|
||
if(nm)
|
||
{
|
||
// See if we need to move the indicator
|
||
var indicator = gallery.container.find('.indicator');
|
||
var current = $j('.active',indicator).position();
|
||
|
||
if(current)
|
||
{
|
||
indicator.animate({left: (gallery.container.width() / 2)-current.left},10);
|
||
}
|
||
}
|
||
},
|
||
expose_onslideend: function (gallery, index, slide){
|
||
// Check to see if we're in a nextmatch, do magic
|
||
var nm = find_nextmatch(this);
|
||
if(nm)
|
||
{
|
||
// Check to see if we're near the end, or maybe some pagination
|
||
// would be good.
|
||
var total_count = nm.controller._grid.getTotalCount();
|
||
|
||
// Already at the end, don't bother
|
||
if(index == total_count -1 || index == 0) return;
|
||
|
||
// Try to determine direction from state of next & previous slides
|
||
var direction = 1;
|
||
for(var i in gallery.elements)
|
||
{
|
||
// Loading or error
|
||
if(gallery.elements[i] == 1 || gallery.elements[i] == 3 || gallery.list[i].loading)
|
||
{
|
||
direction = i >= index ? 1 : -1;
|
||
break;
|
||
}
|
||
}
|
||
|
||
if(!gallery.list[index+direction] || gallery.list[index+direction].loading ||
|
||
total_count > gallery.getNumber() && index + ET2_DATAVIEW_STEPSIZE > gallery.getNumber())
|
||
{
|
||
// This will get the next batch of rows
|
||
var start = Math.max(0, direction > 0 ? index : index - ET2_DATAVIEW_STEPSIZE);
|
||
var end = Math.min(total_count - 1, start + ET2_DATAVIEW_STEPSIZE);
|
||
nm.controller._gridCallback(start, end);
|
||
var images = [];
|
||
read_from_nextmatch.call(this, nm, images, start);
|
||
|
||
// Gallery always adds to the end, causing problems with pagination
|
||
for(var i in images)
|
||
{
|
||
//if(i == index || i < gallery.num) continue;
|
||
set_slide(i, images[i]);
|
||
//gallery.add([images[i]]);
|
||
}
|
||
}
|
||
}
|
||
},
|
||
expose_onslidecomplete:function (gallery, index, slide){},
|
||
expose_onclose: function(event){
|
||
// Check to see if we're in a nextmatch, remove magic
|
||
var nm = find_nextmatch(this);
|
||
if(nm && !this._is_target_indepth(nm))
|
||
{
|
||
// Remove scrolling from thumbnails
|
||
gallery.container.find('.indicator')
|
||
.removeClass('paginating')
|
||
.off('mousewheel')
|
||
.off('swipe');
|
||
|
||
// Remove applied mime filter
|
||
nm.applyFilters({col_filter: {mime: ''}});
|
||
}
|
||
},
|
||
expose_onclosed: function (event){}
|
||
|
||
});
|
||
}
|