oxjs/source/Ox.UI/js/List/List.js
2012-06-30 19:59:20 +00:00

1750 lines
58 KiB
JavaScript

'use strict';
/*@
Ox.List <f> List constructor
options <o> Options object
centered <b|false> if true, and orientation is 'horizontal', then keep the selected item centered
construct <f|null> (data) returns the list item HTML
draggable <b|false> If true, items can be dragged
format <[]> ???
itemHeight <n|16> item height
items <a|f|null> <a> list of items, <f> (data) returns {items, size, ...}, (data, callback) returns [items]
itemWidth <n|16> item width
keys <a|[]> keys of the list items
max <n|-1> Maximum number of items that can be selected (-1 for all)
min <n|0> Minimum number of items that must be selected
orientation <s|vertical> 'horizontal', 'vertical' or 'both'
pageLength <n|100> number of items per page
query <o> Query
conditions <[o]> Conditions
key <s> Key
operator <s> Operator (like `'='` or `'!='`)
Can be `'='` (contains) `'=='` (is), `'^'` (starts with),
`'$'` (ends with), `'<'`, `'<='`, `'>'`, `'>='`, optionally
prefixed with `'!'` (not)
value <*> Value
operator <s> Operator (`'&'` or `'|'`)
selectAsYouType <s|''> If set to a key, enables select-as-you-type
selected <a|[]> ids of the selected elements
sort <a|[]> sort order
sortable <b|false> If true, items can be re-ordered
sums <[s]|[]> sums to be included in totals
type <s|'text'> type
unique <s|''> name of the key that acts as unique id
self <o> shared private variable
([options[, self]]) -> <o:Ox.Container> List object
init <!> init
add <!> item added
delete <!> item removed
draganddrop <!> Fires during drag
draganddropend <!> Fires on drop
draganddropenter <!> Fires when entering an item during drag
draganddropleave <!> Fires when leaving an item during drag
draganddroppause <!> Fires when the mouse stops during drag
draganddropstart <!> Fires when drag starts
copy <!> copy
paste <!> paste
move <!> move item
load <!> list loaded
openpreview <!> preview of selected item opened
closepreview <!> preview closed
select <!> select item
selectafter <!> selectafter
selectbefore <!> selectbefore
toggle <!> toggle
@*/
// fixme: rename the add event to new, or the delete event to remove
Ox.List = function(options, self) {
self = self || {};
var that = Ox.Container({}, self)
.defaults({
_tree: false,
centered: false,
construct: null,
draggable: false,
format: [],
itemHeight: 16,
items: null,
itemWidth: 16,
keys: [],
max: -1,
min: 0,
orientation: 'vertical',
pageLength: 100,
query: {conditions: [], operator: '&'},
selected: [],
sort: [],
sortable: false,
sums: [],
type: 'text',
unique: ''
})
.options(options || {})
.update({
items: function() {
if (!self.isAsync) {
updateItems();
} else {
if (Ox.isArray(self.options.items)) {
self.options.items = Ox.api(self.options.items, {
cache: true,
sort: self.options.sort,
sums: self.options.sums,
unique: self.options.unique
});
/*
self.listLength = self.options.items.length;
updateSelected();
updateSort();
*/
}
updateQuery();
}
},
query: function() {
that.reloadList();
},
selected: function() {
setSelected(self.options.selected);
},
sort: function() {
updateSort();
}
})
.scroll(scroll);
self.options.sort = self.options.sort.map(function(sort) {
return Ox.isString(sort) ? {
key: sort.replace(/^[\+\-]/, ''),
operator: sort[0] == '-' ? '-' : '+'
} : sort;
});
if (Ox.isArray(self.options.items) && !self.options._tree) {
self.options.items = Ox.api(self.options.items, {
cache: true,
sort: self.options.sort,
sums: self.options.sums,
unique: self.options.unique
});
}
that.$content.bindEvent({
mousedown: mousedown,
singleclick: singleclick,
doubleclick: doubleclick
});
if (self.options.draggable) {
that.$content.bindEvent({
dragstart: dragstart,
drag: drag,
dragpause: dragpause,
dragenter: dragenter,
dragleave: dragleave,
dragend: dragend
});
} else if (self.options.sortable) {
that.$content.bindEvent({
dragstart: movestart,
drag: move,
dragend: moveend
});
}
// fixme: without this, horizontal lists don't get their full width
self.options.orientation == 'horizontal' && that.$content.css({height: '1px'});
Ox.extend(self, {
$items: [],
$pages: [],
format: {},
//isAsync: true,
isAsync: !self.options._tree,
itemMargin: self.options.type == 'text' ? 0 : 8, // 2 x 4 px margin ... fixme: the 2x should be computed later
keyboardEvents: {
key_control_c: copyItems,
key_control_e: editItems,
key_control_n: function() {
addItem('');
},
key_alt_control_n: function() {
addItem('alt');
},
key_alt_shift_control_n: function() {
addItem('alt_shift');
},
key_shift_control_n: function() {
addItem('shift');
},
key_control_v: pasteItems,
key_control_x: cutItems,
key_delete: deleteItems,
key_end: scrollToLast,
key_enter: open,
key_home: scrollToFirst,
key_pagedown: scrollPageDown,
key_pageup: scrollPageUp,
key_section: preview, // fixme: firefox gets keyCode 0 when pressing space
key_space: preview
},
listMargin: self.options.type == 'text' ? 0 : 8, // 2 x 4 px padding
page: 0,
preview: false,
requests: [],
scrollTimeout: 0,
selected: []
});
if (!self.isAsync) {
self.selected = self.options.items.map(function(item, i) {
return Ox.extend(item, {_index: i})
}).filter(function(item) {
return self.options.selected.indexOf(item[self.options.unique]) > -1;
}).map(function(item) {
return item['_index'];
});
}
self.options.max == -1 && Ox.extend(self.keyboardEvents, {
key_alt_control_a: invertSelection,
key_control_a: selectAll
});
self.options.min == 0 && Ox.extend(self.keyboardEvents, {
key_control_shift_a: selectNone
});
self.keyboardEvents[
'key_' + (self.options.orientation == 'vertical' ? 'up' : 'left')
] = selectPrevious;
self.keyboardEvents[
'key_' + (self.options.orientation == 'vertical' ? 'down' : 'right')
] = selectNext;
if (self.options.max == -1) {
self.keyboardEvents[
'key_' + (
self.options.orientation == 'vertical'
? 'shift_up' : 'shift_left'
)
] = addPreviousToSelection;
self.keyboardEvents[
'key_' + (
self.options.orientation == 'vertical'
? 'shift_down' : 'shift_right'
)
] = addNextToSelection;
}
if (self.options.orientation == 'vertical') {
Ox.extend(self.keyboardEvents, {
key_left: function() {
triggerToggleEvent(false);
},
key_right: function() {
triggerToggleEvent(true);
}
});
} else if (self.options.orientation == 'both') {
Ox.extend(self.keyboardEvents, {
key_down: selectBelow,
key_up: selectAbove
});
if (self.options.max == -1) {
Ox.extend(self.keyboardEvents, {
key_shift_down: addBelowToSelection,
key_shift_up: addAboveToSelection
});
}
self.pageLengthByRowLength = [
0, 60, 60, 60, 60, 60, 60, 63, 64, 63, 60,
66, 60, 65, 70, 60, 64, 68, 72, 76, 60
];
}
if (self.options.selectAsYouType) {
Ox.extend(self.keyboardEvents, {keys: selectAsYouType});
}
that.bindEvent(self.keyboardEvents);
!self.isAsync ? updateItems() : updateQuery();
//Ox.UI.$window.resize(that.size); // fixme: this is not the widget's job
function addAboveToSelection() {
var pos = getAbove();
if (pos > -1) {
addToSelection(pos);
scrollToPosition(pos);
}
}
function addAllToSelection(pos) {
var arr, i, len = self.$items.length;
if (!isSelected(pos)) {
if (self.selected.length == 0) {
addToSelection(pos);
} else {
arr = [pos];
if (Ox.min(self.selected) < pos) {
for (i = pos - 1; i >= 0; i--) {
if (isSelected(i)) {
break;
}
arr.push(i);
}
}
if (Ox.max(self.selected) > pos) {
for (i = pos + 1; i < len; i++) {
if (isSelected(i)) {
break;
}
arr.push(i);
}
}
addToSelection(arr);
}
}
}
function addBelowToSelection() {
var pos = getBelow();
if (pos > -1) {
addToSelection(pos);
scrollToPosition(pos);
}
}
function addItem(keys) {
that.triggerEvent('add', {keys: keys});
}
function addNextToSelection() {
var pos = getNext();
if (pos > -1) {
addToSelection(pos);
scrollToPosition(pos);
}
}
function addPreviousToSelection() {
var pos = getPrevious();
if (pos > -1) {
addToSelection(pos);
scrollToPosition(pos);
}
}
function addToSelection(pos) {
var triggerEvent = false;
Ox.makeArray(pos).forEach(function(pos) {
if (!isSelected(pos)) {
self.selected.push(pos);
if (!Ox.isUndefined(self.$items[pos])) {
self.$items[pos].addClass('OxSelected');
}
triggerEvent = true;
} else {
// allow for 'cursor navigation' if orientation == 'both'
self.selected.splice(self.selected.indexOf(pos), 1);
self.selected.push(pos);
}
});
triggerEvent && triggerSelectEvent();
}
function clear() {
self.requests.forEach(function(request) {
Ox.Request.cancel(request);
});
Ox.extend(self, {
$items: [],
$pages: [],
page: 0,
requests: []
});
}
function constructEmptyPage(page) {
var i, $page = Ox.ListPage().css(getPageCSS(page));
Ox.loop(getPageLength(page), function() {
Ox.ListItem({
construct: self.options.construct
}).appendTo($page);
});
return $page;
}
function copyItems() {
// fixme: both copy and paste should just deal with Ox.Clipboard,
// and use a "type"
self.options.selected.length && that.triggerEvent('copy', {
ids: self.options.selected
});
/*
ids.length && self.options.copy && Ox.Clipboard.copy(
self.options.copy(
ids.map(function(id) {
return that.value(id);
})
)
);
*/
}
function cutItems() {
copyItems();
deleteItems();
}
function deleteItems() {
self.options.selected.length && that.triggerEvent('delete', {
ids: self.options.selected
});
}
function deselect(pos) {
var triggerEvent = false;
Ox.makeArray(pos).forEach(function(pos) {
if (isSelected(pos)) {
self.selected.splice(self.selected.indexOf(pos), 1);
!Ox.isUndefined(self.$items[pos])
&& self.$items[pos].removeClass('OxSelected');
triggerEvent = true;
}
});
triggerEvent && triggerSelectEvent();
}
function doubleclick(data) {
open(isSpecialTarget(data));
}
function dragstart(data) {
var $target = $(data.target),
$parent = $target.parent();
if ((
$target.is('.OxTarget') // icon lists
|| $parent.is('.OxTarget') // table lists
|| $parent.parent().is('.OxTarget') // table lists with div inside cell
) && !$target.is('.OxSpecialTarget')) {
self.drag = {
ids: self.options.selected
};
// fixme: shouldn't the target have been
// automatically passed already, somewhere?
that.triggerEvent('draganddropstart', {
event: data,
ids: self.drag.ids
});
}
}
function drag(data) {
self.drag && that.triggerEvent('draganddrop', {
event: data,
ids: self.drag.ids
});
}
function dragpause(data) {
self.drag && that.triggerEvent('draganddroppause', {
event: data,
ids: self.drag.ids
});
}
function dragenter(data) {
self.drag && that.triggerEvent('draganddropenter', {
event: data,
ids: self.drag.ids
});
}
function dragleave(data) {
self.drag && that.triggerEvent('draganddropleave', {
event: data,
ids: self.drag.ids
});
}
function dragend(data) {
if (self.drag) {
that.triggerEvent('draganddropend', {
event: data,
ids: self.drag.ids
});
delete self.drag;
}
}
function editItems() {
/*
self.options.selected.length && that.triggerEvent('edit', {
ids: self.options.selected
});
*/
}
function emptyFirstPage() {
if (self.$pages[0]) {
if (self.options.type == 'text') {
self.$pages[0].find('.OxEmpty').remove();
} else if (self.options.orientation == 'both') {
that.$content.css({height: getListSize() + 'px'});
}
}
}
function fillFirstPage() {
if (self.$pages[0]) {
if (self.options.type == 'text') {
var height = getHeight(),
lastItemHeight = height % self.options.itemHeight || self.options.itemHeight,
visibleItems = Math.ceil(height / self.options.itemHeight);
if (self.listLength < visibleItems) {
Ox.range(self.listLength, visibleItems).forEach(function(i) {
var $item = Ox.ListItem({
construct: self.options.construct
});
$item.addClass('OxEmpty').removeClass('OxTarget');
if (i == visibleItems - 1) {
$item.$element.css({
height: lastItemHeight + 'px',
overflowY: 'hidden'
});
}
$item.appendTo(self.$pages[0]);
});
}
} else if (self.options.orientation == 'both') {
var height = getHeight(),
listSize = getListSize();
if (listSize < height) {
that.$element.css({overflowY: 'hidden'});
that.$content.css({height: height + 'px'});
} else {
that.$element.css({overflowY: 'auto'});
}
}
}
}
function findCell(e) {
var $element = $(e.target);
while (!$element.is('.OxCell') && !$element.is('.OxPage') && !$element.is('body')) {
$element = $element.parent();
}
return $element.is('.OxCell') ? $element : null;
}
function findItemPosition(e) {
var $element = $(e.target),
$parent,
position = -1;
while (
!$element.is('.OxTarget') && !$element.is('.OxPage')
&& ($parent = $element.parent()).length
) {
$element = $parent;
}
if ($element.is('.OxTarget')) {
while (
!$element.is('.OxItem') && !$element.is('.OxPage')
&& ($parent = $element.parent()).length
) {
$element = $parent;
}
if ($element.is('.OxItem')) {
position = $element.data('position');
}
}
return position;
}
function getAbove() {
var pos = -1;
if (self.selected.length) {
pos = self.selected[self.selected.length - 1] - self.rowLength;
if (pos < 0) {
pos = -1;
}
}
return pos;
}
function getBelow() {
var pos = -1;
if (self.selected.length) {
pos = self.selected[self.selected.length - 1] + self.rowLength;
if (pos >= self.$items.length) {
pos = -1;
}
}
return pos;
}
function getHeight() {
return that.height() - (that.$content.width() > that.width() ? Ox.UI.SCROLLBAR_SIZE : 0);
}
function getListSize() {
return Math.ceil(self.listLength / self.rowLength) * (self.options[
self.options.orientation == 'horizontal' ? 'itemWidth' : 'itemHeight'
] + self.itemMargin);
}
function getNext() {
var pos = -1;
if (self.selected.length) {
pos = (self.options.orientation == 'both'
? self.selected[self.selected.length - 1]
: Ox.max(self.selected)) + 1;
if (pos == self.$items.length) {
pos = -1;
}
}
return pos;
}
function getPage() {
return Math.max(
Math.floor(self.options.orientation == 'horizontal' ?
(that.scrollLeft() - self.listMargin / 2) / self.pageWidth :
(that.scrollTop() - self.listMargin / 2) / self.pageHeight
), 0);
}
function getPageByPosition(pos) {
return Math.floor(pos / self.options.pageLength);
}
function getPageByScrollPosition(pos) {
return getPageByPosition(pos / (
self.options.orientation == 'vertical'
? self.options.itemHeight
: self.options.itemWidth
));
}
function getPageCSS(page) {
return self.options.orientation == 'horizontal' ? {
left: (page * self.pageWidth + self.listMargin / 2) + 'px',
top: (self.listMargin / 2) + 'px',
width: (page < self.pages - 1 ? self.pageWidth :
getPageLength(page) * (self.options.itemWidth + self.itemMargin)) + 'px'
} : {
top: (page * self.pageHeight + self.listMargin / 2) + 'px',
width: self.pageWidth + 'px'
};
}
function getPageHeight() {
return Math.ceil(self.pageLength * (self.options.itemHeight + self.itemMargin) / self.rowLength);
}
function getPageLength(page) {
var mod = self.listLength % self.pageLength;
return page < self.pages - 1 || (self.listLength && mod == 0) ? self.pageLength : mod;
}
function getPositionById(id) {
// fixme: is this really needed?
var pos = -1;
Ox.forEach(self.$items, function($item, i) {
if ($item.options('data')[self.options.unique] == id) {
pos = i;
Ox.Break();
}
});
return pos;
}
function getPositions(callback) {
// fixme: optimize: send non-selected ids if more than half of the items are selected
if (self.options.selected.length/* && ids.length < self.listLength*/) {
self.requests.push(self.options.items({
positions: self.options.selected,
query: self.options.query,
sort: self.options.sort
}, function(result) {
getPositionsCallback(result, callback);
}));
} else {
getPositionsCallback(null, callback);
}
}
function getPositionsCallback(result, callback) {
//Ox.Log('List', 'getPositionsCallback', result);
var pos = 0, previousSelected = self.options.selected;
if (result) {
self.options.selected = [];
self.positions = {};
self.selected = [];
Ox.forEach(result.data.positions, function(pos, id) {
// fixme: in case the order of self.options.selected
// is important - it may get lost here
if (pos > -1) {
self.options.selected.push(id);
self.selected.push(pos);
}
});
if (self.selected.length) {
pos = Ox.min(self.selected);
self.page = getPageByPosition(pos);
}
if (!Ox.isEqual(self.options.selected, previousSelected)) {
that.triggerEvent('select', {ids: self.options.selected});
}
} else if (self.stayAtPosition) {
self.page = getPageByScrollPosition(self.stayAtPosition);
}
that.$content.empty();
loadPages(self.page, function() {
scrollToPosition(pos, true);
callback && callback();
});
}
function getPrevious() {
var pos = -1;
if (self.selected.length) {
pos = (self.options.orientation == 'both'
? self.selected[self.selected.length - 1]
: Ox.min(self.selected)) - 1;
}
return pos;
}
function getRow(pos) {
return Math.floor(pos / self.rowLength);
}
function getRowLength() {
return self.options.orientation == 'both' ? Math.floor(
(getWidth() - self.listMargin)
/ (self.options.itemWidth + self.itemMargin)
) : 1;
}
function getScrollPosition() {
// if orientation is both, this returns the
// element position at the current scroll position
return Math.floor(
that.scrollTop() / (self.options.itemHeight + self.itemMargin)
) * self.rowLength;
}
function getSelectedIds(callback) {
var ids = [], notFound = false;
if (self.$items.length == 0) {
callback(self.options.selected);
} else {
Ox.forEach(self.selected, function(pos) {
if (self.$items[pos]) {
ids.push(self.$items[pos].options('data')[self.options.unique]);
} else {
notFound = true;
Ox.Break();
}
});
if (notFound) {
// selection across items that are not in the DOM
self.options.items({
keys: [self.options.unique],
query: self.options.query,
range: [0, self.listLength],
sort: self.options.sort
}, function(result) {
var ids = [], rest = [],
useRest = self.selected.length > self.listLength / 2;
result.data.items.forEach(function(item, i) {
if (self.selected.indexOf(i) > -1) {
ids.push(item[self.options.unique]);
} else if (useRest) {
rest.push(item[self.options.unique]);
}
});
useRest ? callback(ids, rest) : callback(ids);
});
} else {
callback(ids);
}
}
}
function getWidth() {
//Ox.Log('List', 'LIST THAT.WIDTH()', that.width())
return that.width() - (
that.$content.height() > that.height() ? Ox.UI.SCROLLBAR_SIZE : 0
);
}
function invertSelection() {
var arr = Ox.range(self.listLength).filter(function(pos) {
return !isSelected(pos);
});
selectNone();
addToSelection(arr);
}
function isSelected(pos) {
return self.selected.indexOf(pos) > -1;
}
function isSpecialTarget(e) {
var $element = $(e.target),
$parent;
while (
!$element.is('.OxSpecialTarget') && !$element.is('.OxPage')
&& ($parent = $element.parent()).length
) {
$element = $parent;
}
return $element.is('.OxSpecialTarget');
}
function loadItems() {
self.$pages[0].empty();
self.$items = [];
var timeC = 0, timeA = 0;
self.options.items.forEach(function(item, pos) {
// fixme: duplicated
var time0 = +new Date();
self.$items[pos] = Ox.ListItem({
construct: self.options.construct,
data: item,
position: pos,
unique: self.options.unique
});
timeC += +new Date() - time0;
isSelected(pos) && self.$items[pos].addClass('OxSelected');
var time0 = +new Date();
self.$items[pos].appendTo(self.$pages[0]);
timeA += +new Date() - time0;
});
// timeout needed so that height is present
setTimeout(fillFirstPage, 0);
self.selected.length && scrollToPosition(self.selected[0]);
Ox.Log('List', 'CONSTRUCT:', timeC, 'APPEND:', timeA);
that.triggerEvent('init', {items: self.options.items.length});
// fixme: do sync lists need to trigger init?
}
function loadPage(page, callback) {
if (page < 0 || page >= self.pages) {
!Ox.isUndefined(callback) && callback();
return;
}
Ox.Log('List', that.oxid, 'loadPage', page);
var keys = Ox.unique(self.options.keys.concat(self.options.unique)),
offset = page * self.pageLength,
range = [offset, offset + getPageLength(page)];
if (Ox.isUndefined(self.$pages[page])) { // fixme: unload will have made this undefined already
self.$pages[page] = constructEmptyPage(page);
page == 0 && fillFirstPage();
self.$pages[page].appendTo(that.$content);
self.requests.push(self.options.items({
keys: keys,
query: self.options.query,
range: range,
sort: self.options.sort
}, function(result) {
var $emptyPage = self.$pages[page];
self.$pages[page] = Ox.ListPage().css(getPageCSS(page));
result.data.items.forEach(function(v, i) {
var pos = offset + i;
self.$items[pos] = Ox.ListItem({
construct: self.options.construct,
data: v,
//format: self.options.format,
position: pos,
unique: self.options.unique
});
isSelected(pos) && self.$items[pos].addClass('OxSelected');
self.$items[pos].appendTo(self.$pages[page]);
});
page == 0 && fillFirstPage();
// FIXME: why does emptyPage sometimes have no methods?
//Ox.Log('List', 'emptyPage', $emptyPage)
$emptyPage && $emptyPage.remove && $emptyPage.remove();
self.$pages[page].appendTo(that.$content);
!Ox.isUndefined(callback) && callback(); // fixme: callback necessary? why not bind to event?
}));
} else {
//Ox.Log('List', 'loading a page from cache, this should probably not happen -----------')
self.$pages[page].appendTo(that.$content);
}
}
function loadPages(page, callback) {
Ox.Log('List', 'loadPages', page)
var counter = 0,
fn = function() {
if (++counter == 3) {
!Ox.isUndefined(callback) && callback();
that.triggerEvent('load');
}
};
// fixme: find out which option is better
/*
loadPage(page, function() {
loadPage(page - 1, fn);
loadPage(page + 1, fn);
});
*/
loadPage(page, fn);
loadPage(page - 1, fn);
loadPage(page + 1, fn);
}
function mousedown(data) {
var pos = findItemPosition(data);
that.gainFocus();
self.mousedownOnSelectedCell = false;
if (pos > -1) {
if (data.metaKey) {
if (!isSelected(pos) && (self.options.max == -1 || self.options.max > self.selected.length)) {
// meta-click on unselected item
addToSelection(pos);
} else if (isSelected(pos) && self.options.min < self.selected.length) {
// meta-click on selected item
deselect(pos);
}
} else if (data.shiftKey) {
if (self.options.max == -1) {
// shift-click on item
addAllToSelection(pos);
}
} else if (!isSelected(pos) && self.options.max != 0) {
// click on unselected item
select(pos);
} else if (self.options.type == 'text') {
// click on a selected table list cell
self.mousedownOnSelectedCell = true;
}
} else if (!$(data.target).is('.OxToggle') && self.options.min == 0) {
// click on empty area
selectNone();
}
// note: we have to save if the mousedown was on a selected cell
// since otherwise, mousedown would select a previously unselected item,
// and the subsequent singleclick might trigger an unwanted edit event.
}
function movestart(data) {
self.drag = {
pos: findItemPosition(data)
};
Ox.extend(self.drag, {
id: self.$items[self.drag.pos].options('data')[self.options.unique],
startPos: self.drag.pos,
startY: data.clientY,
stopPos: self.drag.pos
});
self.$items[self.drag.pos]
.addClass('OxDrag')
.css({
cursor: 'move'
});
}
function move(data) {
var clientY = data.clientY - that.offset()['top'],
offset = clientY % 16,
position = Ox.limit(Math.floor(clientY / 16), 0, self.$items.length - 1);
if (position < self.drag.pos) {
self.drag.stopPos = position + (offset > 8 ? 1 : 0);
} else if (position > self.drag.pos) {
self.drag.stopPos = position - (offset <= 8 ? 1 : 0);
}
if (self.drag.stopPos != self.drag.pos) {
moveItem(self.drag.pos, self.drag.stopPos);
self.drag.pos = self.drag.stopPos;
}
}
function moveend(data) {
var $item = self.$items[self.drag.pos];
$item.removeClass('OxDrag')
.css({
cursor: 'default'
});
that.triggerEvent('move', {
//id: id,
ids: self.$items.map(function($item) {
return $item.options('data')[self.options.unique];
})
//position: pos
});
delete self.drag;
}
function moveItem(startPos, stopPos) {
var $item = self.$items[startPos],
insert = startPos < stopPos ? 'insertAfter' : 'insertBefore';
$item.detach()[insert](self.$items[stopPos].$element); // fixme: why do we need .$element here?
//Ox.Log('List', 'moveItem', startPos, stopPos, insert, self.ids);
var $item = self.$items.splice(startPos, 1)[0];
self.$items.splice(stopPos, 0, $item);
self.$items.forEach(function($item, pos) {
$item.data({position: pos});
});
self.selected = [stopPos];
}
function open(isSpecialTarget) {
self.options.selected.length && that.triggerEvent('open', {
ids: self.options.selected,
isSpecialTarget: isSpecialTarget == true
});
}
function pasteItems() {
that.triggerEvent('paste', Ox.Clipboard.paste());
}
function preview() {
if (self.options.selected.length) {
self.preview = !self.preview;
if (self.preview) {
that.triggerEvent('openpreview', {
ids: self.options.selected
});
} else {
that.triggerEvent('closepreview');
}
}
}
function scroll() {
if (self.isAsync) {
var page = self.page;
self.scrollTimeout && clearTimeout(self.scrollTimeout);
self.scrollTimeout = setTimeout(function() {
self.scrollTimeout = 0;
self.page = getPage();
if (self.page == page - 1) {
unloadPage(self.page + 2);
loadPage(self.page - 1);
} else if (self.page == page + 1) {
unloadPage(self.page - 2);
loadPage(self.page + 1);
} else if (self.page == page - 2) {
unloadPage(self.page + 3);
unloadPage(self.page + 2);
loadPage(self.page);
loadPage(self.page - 1);
} else if (self.page == page + 2) {
unloadPage(self.page - 3);
unloadPage(self.page - 2);
loadPage(self.page);
loadPage(self.page + 1);
} else if (self.page != page) {
unloadPages(page);
loadPages(self.page);
}
}, 250);
}
//that.gainFocus();
}
function scrollPageDown() {
that.scrollTop(that.scrollTop() + getHeight());
}
function scrollPageUp() {
that.scrollTop(that.scrollTop() - getHeight());
}
function scrollTo(value) {
that.animate(self.options.orientation == 'horizontal' ? {
scrollLeft: (self.listSize * value) + 'px'
} : {
scrollTop: (self.listSize * value) + 'px'
}, 0);
}
function scrollToFirst() {
that[self.options.orientation == 'horizontal' ? 'scrollLeft' : 'scrollTop'](0);
}
function scrollToLast() {
that[self.options.orientation == 'horizontal' ? 'scrollLeft' : 'scrollTop'](self.listSize);
}
function scrollToPosition(pos, leftOrTopAlign) {
//Ox.Log('List', 'scrollToPosition', pos)
var itemHeight = self.options.itemHeight + self.itemMargin,
itemWidth = self.options.itemWidth + self.itemMargin,
positions = [],
scroll,
size;
if (self.options.orientation == 'horizontal') {
if (self.options.centered) {
that.animate({
scrollLeft: self.listMargin / 2 + (pos + 0.5) * itemWidth
- that.width() / 2 + 'px'
}, 250);
} else {
positions[0] = pos * itemWidth + self.listMargin / 2;
positions[1] = positions[0] + itemWidth + self.itemMargin / 2;
scroll = that.scrollLeft();
size = getWidth();
// fixme: css instead of animate(0)?
if (positions[0] < scroll || leftOrTopAlign) {
that.animate({scrollLeft: positions[0] + 'px'}, 0);
} else if (positions[1] > scroll + size) {
that.animate({scrollLeft: (positions[1] - size) + 'px'}, 0);
}
}
} else {
positions[0] = (
self.options.orientation == 'vertical' ? pos : getRow(pos)
) * itemHeight;
positions[1] = positions[0] + itemHeight + (
self.options.orientation == 'vertical' ? 0 : self.itemMargin
);
scroll = that.scrollTop();
size = getHeight();
// fixme: css instead of animate(0)?
if (positions[0] < scroll || leftOrTopAlign) {
that.animate({scrollTop: positions[0] + 'px'}, 0);
} else if (positions[1] > scroll + size) {
that.animate({scrollTop: (positions[1] - size) + 'px'}, 0);
}
}
}
function select(pos) {
if (!isSelected(pos) || self.selected.length > 1) {
selectNone();
addToSelection(pos);
self.options.centered && scrollToPosition(pos);
}
}
function selectAbove() {
var pos = getAbove();
if (pos > -1) {
select(pos);
scrollToPosition(pos);
}
}
function selectAll() {
addToSelection(Ox.range(self.listLength));
}
function selectAsYouType(data) {
self.options.items({
keys: [self.options.unique],
query: {
conditions: [
self.options.query,
{
key: self.options.selectAsYouType,
operator: '^',
value: data.keys
},
],
operator: '&'
},
range: [0, 1],
sort: [{key: self.options.selectAsYouType, operator: '+'}]
}, function(result) {
result.data.items.length && that.options({
selected: [result.data.items[0][self.options.unique]]
});
});
}
function selectBelow() {
var pos = getBelow();
if (pos > -1) {
select(pos);
scrollToPosition(pos);
}
}
function selectNext() {
var pos = getNext();
if (pos > -1) {
select(pos);
scrollToPosition(pos);
} else if (self.selected.length) {
that.triggerEvent('selectafter');
}
}
function selectNone() {
deselect(Ox.range(self.listLength));
}
function selectPrevious() {
var pos = getPrevious();
if (pos > -1) {
select(pos);
scrollToPosition(pos);
} else if (self.selected.length) {
that.triggerEvent('selectbefore');
}
}
function selectQuery(str) {
Ox.forEach(self.$items, function(v, i) {
if (Ox.toLatin(v.title).toUpperCase().indexOf(str) == 0) {
select(i);
scrollToPosition(i);
Ox.Break();
}
});
}
function setSelected(ids, callback) {
// fixme: callback is never used
// note: can't use selectNone here,
// since it'd trigger a select event
Ox.Log('List', 'SET SELECTED', ids)
var counter = 0;
self.$items.forEach(function($item, pos) {
if (isSelected(pos)) {
self.selected.splice(self.selected.indexOf(pos), 1);
if (!Ox.isUndefined(self.$items[pos])) {
self.$items[pos].removeClass('OxSelected');
}
}
});
ids.forEach(function(id, i) {
var pos = getPositionById(id);
if (pos > -1) {
select(pos, i);
} else if (self.isAsync) {
// async and id not in current view
self.options.items({
positions: [id],
query: self.options.query,
sort: self.options.sort
}, function(result) {
pos = result.data.positions[id];
select(pos, i);
});
}
});
function select(pos, i) {
self.selected.push(pos);
if (!Ox.isUndefined(self.$items[pos])) {
self.$items[pos].addClass('OxSelected');
}
i == 0 && scrollToPosition(pos);
++counter == ids.length && callback && callback();
}
}
function singleclick(data) {
// these can't trigger on mousedown, since the mousedown
// could still be the start of a doubleclick or drag
var pos = findItemPosition(data),
$cell, clickable, editable;
if (pos > -1) {
if (
!data.metaKey && !data.shiftKey
&& isSelected(pos) && self.selected.length > 1
) {
// click on one of multiple selected items
select(pos);
} else if (self.mousedownOnSelectedCell) {
$cell = findCell(data);
if ($cell) {
clickable = $cell.is('.OxClickable');
editable = $cell.is('.OxEditable') && !$cell.is('.OxEdit');
if (clickable || editable) {
// click on a clickable or editable cell
triggerClickEvent(clickable ? 'click' : 'edit', self.$items[pos], $cell);
}
}
}
}
}
function toggleSelection(pos) {
// FIXME: unused
if (!isSelected(pos)) {
addToSelection(pos);
} else {
deselect(pos);
}
}
function triggerClickEvent(event, $item, $cell) {
// event can be 'click' or 'edit'
that.triggerEvent(event, Ox.extend({
id: $item.data('id')
}, $cell ? {
key: $cell.attr('class').split('OxColumn')[1].split(' ')[0].toLowerCase()
} : {}));
}
function triggerSelectEvent() {
// FIXME: the first select event should fire immediately
// see ArrayEditable
getSelectedIds(function(ids) {
self.options.selected = ids;
setTimeout(function() {
getSelectedIds(function(ids_, rest) {
self.options.selected = ids_;
if (Ox.isEqual(ids, ids_)) {
that.triggerEvent('select', Ox.extend({
ids: ids
}, rest ? {
rest: rest
} : {}));
if (self.preview) {
if (ids.length) {
that.triggerEvent('openpreview', {
ids: ids
});
} else {
that.triggerEvent('closepreview');
}
}
}
});
}, 100);
})
}
function triggerToggleEvent(expanded) {
that.triggerEvent('toggle', {
expanded: expanded,
ids: self.options.selected
});
}
function unloadPage(page) {
if (page < 0 || page >= self.pages) {
return;
}
//Ox.Log('List', 'unloadPage', page)
//Ox.Log('List', 'self.$pages', self.$pages)
//Ox.Log('List', 'page not undefined', !Ox.isUndefined(self.$pages[page]))
if (!Ox.isUndefined(self.$pages[page])) {
self.$pages[page].remove();
delete self.$pages[page];
}
}
function unloadPages(page) {
unloadPage(page);
unloadPage(page - 1);
unloadPage(page + 1)
}
function updateItems() {
clear();
that.$content.empty();
self.$pages = [];
self.$pages[0] = Ox.Element()
.addClass('OxPage')
.css({
left: self.listMargin / 2 + 'px',
top: self.listMargin / 2 + 'px'
})
.appendTo(that.$content);
self.listLength = self.options.items.length;
loadItems();
}
function updatePages(pos, scroll) {
// only used if orientation is both
clear();
self.pageLength = self.pageLengthByRowLength[self.rowLength]
Ox.extend(self, {
listSize: getListSize(),
pages: Math.ceil(self.listLength / self.pageLength),
pageWidth: (self.options.itemWidth + self.itemMargin) * self.rowLength,
pageHeight: getPageHeight()
});
that.$content.css({
height: self.listSize + 'px'
});
self.page = getPageByPosition(pos);
//that.scrollTop(0);
that.$content.empty();
loadPages(self.page, function() {
scrollTo(scroll);
});
}
function updatePositions() {
self.$items.forEach(function(item, pos) {
item.data('position', pos);
});
}
function updateQuery(callback) { // fixme: shouldn't this be setQuery?
clear(); // fixme: bad function name ... clear what?
self.requests.push(self.options.items({
query: self.options.query
}, function(result) {
var keys = {};
//Ox.Log('List', 'INIT!!!', result.data)
// timeout needed since a synchronous items function
// will reach here before one can bind to the init event,
// and before any sizes can be determined via the DOM
setTimeout(function() {
that.triggerEvent('init', result.data);
self.rowLength = getRowLength();
self.pageLength = self.options.orientation == 'both'
? self.pageLengthByRowLength[self.rowLength]
: self.options.pageLength;
Ox.extend(self, {
listLength: result.data.items,
pages: Math.max(Math.ceil(result.data.items / self.pageLength), 1),
pageWidth: self.options.orientation == 'vertical'
? 0 : (self.options.itemWidth + self.itemMargin) * (
self.options.orientation == 'horizontal'
? self.pageLength : self.rowLength
),
pageHeight: self.options.orientation == 'horizontal'
? 0 : Math.ceil(self.pageLength * (
self.options.itemHeight + self.itemMargin
) / self.rowLength)
});
self.listSize = getListSize();
that.$content.css(
self.options.orientation == 'horizontal' ? 'width' : 'height',
self.listSize + 'px'
);
getPositions(callback);
});
}));
}
function updateSelected() {
//Ox.Log('List', 'updateSelected')
getSelectedIds(function(oldIds) {
var newIds = [];
Ox.forEach(self.options.items, function(item) {
if (oldIds.indexOf(item.id) > -1) {
newIds.push(item.id);
}
newIds.length == oldIds.length && Ox.Break();
});
setSelected(newIds);
});
}
function updateSort() {
var length = self.options.sort.length,
operator = [],
sort = [];
//if (self.listLength > 1) {
if (!self.isAsync) {
getSelectedIds(function(selectedIds) {
self.options.sort.forEach(function(v, i) {
operator.push(v.operator);
sort.push({});
self.options.items.forEach(function(item) {
sort[i][item.id] = v.map
? v.map(item[v.key], item)
: item[v.key]
});
});
self.options.items.sort(function(a, b) {
var aValue, bValue, index = 0, ret = 0;
while (ret == 0 && index < length) {
aValue = sort[index][a.id];
bValue = sort[index][b.id];
if (aValue < bValue) {
ret = operator[index] == '+' ? -1 : 1;
} else if (aValue > bValue) {
ret = operator[index] == '+' ? 1 : -1;
} else {
index++;
}
}
return ret;
});
if (selectedIds.length) {
self.selected = [];
self.options.items.forEach(function(item, i) {
if (selectedIds.indexOf(item.id) > -1) {
self.selected.push(i);
}
});
}
loadItems();
});
} else {
clear(); // fixme: bad function name
getPositions();
}
//}
}
/*@
addItems <f> add item to list
(pos, items) -> <u> add items to list at position
pos <n> position to add items
items <a> array of items to add
@*/
that.addItems = function(pos, items) {
var $items = [],
length = items.length;
self.selected.forEach(function(v, i) {
if (v >= pos) {
self.selected[i] += length;
}
});
items.forEach(function(item, i) {
var $item;
$items.push($item = Ox.ListItem({
construct: self.options.construct,
data: item,
position: pos + i,
unique: self.options.unique
}));
if (i == 0) {
if (pos == 0) {
$item.insertBefore(self.$items[0]);
} else {
$item.insertAfter(self.$items[pos - 1]);
}
} else {
$item.insertAfter($items[i - 1]);
}
});
self.options.items.splice.apply(self.options.items, [pos, 0].concat(items));
self.$items.splice.apply(self.$items, [pos, 0].concat($items));
self.listLength = self.options.items.length;
//loadItems();
updatePositions();
emptyFirstPage();
fillFirstPage();
};
/*@
closePreview <f> to be called when preview is closed externally
() -> <o> the list
@*/
that.closePreview = function() {
self.preview = false;
that.triggerEvent('closepreview');
return that;
};
/*@
clearCache <f> empty list cache
() -> <o> the list
@*/
that.clearCache = function() { // fixme: was used by TableList resizeColumn, now probably no longer necessary
self.$pages = [];
return that;
};
/*@
openPreview <f> to be called when preview is opened externally
() -> <o> the list
@*/
that.openPreview = function() {
self.preview = true;
that.triggerEvent('openpreview', {ids: self.options.selected});
return that;
};
/*@
paste <f> paste data
(data) -> <o> the list
data <o> paste object
@*/
that.paste = function(data) {
pasteItems(data);
return that;
};
/*@
reloadList <f> reload list contents
() -> <o> the list
@*/
that.reloadList = function(stayAtPosition) {
var scrollTop = that.scrollTop();
if (!self.isAsync) {
loadItems();
scrollList();
} else {
updateQuery(scrollList);
}
function scrollList() {
stayAtPosition && that.scrollTop(scrollTop);
}
return that;
};
/*@
reloadPages <f> reload list pages
() -> <o> the list
@*/
that.reloadPages = function() {
// this is called by TableList when the column layout changes
var page, scrollLeft, scrollTop;
if (!self.isAsync) {
scrollLeft = that.scrollLeft();
scrollTop = that.scrollTop();
loadItems();
that.scrollLeft(scrollLeft).scrollTop(scrollTop);
} else {
page = self.page;
clear();
self.page = page
that.$content.empty();
loadPages(self.page);
}
return that;
};
/*@
removeItems <f> remove items from list
(ids) -> <u> remove items
(pos, length) -> <u> remove items
ids <a> array of item ids
pos <n> delete items starting at this position
length <n> number of items to remove
@*/
that.removeItems = function(pos, length) {
Ox.Log('List', 'removeItems', pos, length)
if (Ox.isUndefined(length)) { // pos is list of ids
pos.forEach(function(id) {
var p = getPositionById(id);
that.removeItems(p, 1);
});
} else { // remove items from pos to pos+length
Ox.range(pos, pos + length).forEach(function(i) {
self.selected.indexOf(i) > -1 && deselect(i);
self.$items[i].remove();
});
self.options.items.splice(pos, length);
self.$items.splice(pos, length);
self.selected.forEach(function(v, i) {
if (v >= pos + length) {
self.selected[i] -= length;
}
});
self.listLength = self.options.items.length;
updatePositions();
}
emptyFirstPage();
fillFirstPage();
};
/*@
scrollToSelection <f> scroll list to current selection
() -> <f> returns List Element
@*/
that.scrollToSelection = function() {
self.selected.length && scrollToPosition(self.selected[0]);
return that;
};
/*@
size <f> fixme: not a good function name
() -> <f> returns List Element
@*/
that.size = function() { // fixme: not a good function name
if (self.options.orientation == 'both') {
var rowLength = getRowLength(),
pageLength = self.pageLengthByRowLength[rowLength],
pos = getScrollPosition(),
scroll = that.scrollTop() / self.listSize;
if (pageLength != self.pageLength) {
self.pageLength = pageLength;
self.rowLength = rowLength;
updatePages(pos, scroll);
} else if (rowLength != self.rowLength) {
self.rowLength = rowLength;
self.pageWidth = (self.options.itemWidth + self.itemMargin) * self.rowLength; // fixme: make function
self.listSize = getListSize();
self.pageHeight = getPageHeight();
self.$pages.forEach(function($page, i) {
!Ox.isUndefined($page) && $page.css({
width: self.pageWidth + 'px',
top: (i * self.pageHeight + self.listMargin / 2) + 'px'
});
});
that.$content.css({
height: self.listSize + 'px'
});
scrollTo(scroll);
}
emptyFirstPage();
fillFirstPage();
} else if (self.options.type == 'text') {
emptyFirstPage();
fillFirstPage();
}
return that;
};
/*@
sort <f> sort
@*/
// needed when a value has changed
// but, fixme: better function name
that.sort = function() {
updateSort();
};
/*@
sortList <f> sort list
(key, operator) -> <f> returns List Element
key <s> key to sort list by
operator <s> +/- sort ascending or descending
map <f> function that maps values to sort values
@*/
// fixme: this (and others) should be deprecated,
// one should set options instead
that.sortList = function(key, operator, map) {
// Ox.Log('List', 'sortList', key, operator, map)
if (key != self.options.sort[0].key || operator != self.options.sort[0].operator) {
self.options.sort[0] = {key: key, operator: operator, map: map};
updateSort();
that.triggerEvent('sort', self.options.sort[0]);
}
return that;
};
/*@
value <f> get/set list value
(id, key, value) -> <f> sets value, returns List Element
(id, key) -> <a> returns value
(id) -> <o> returns all values of id
id <s> id of item
key <s> key if item property
value <*> value, can be whatever that property is
@*/
that.value = function(id, key, value) {
// id can be a number and will then be interpreted as position
var pos = Ox.isNumber(id) ? id : getPositionById(id),
$item = self.$items[pos],
data = $item ? $item.options('data') : {};
if (arguments.length == 1) {
return data;
} else if (arguments.length == 2) {
return data[key];
} else if ($item) {
if (key == self.options.unique) {
// unique id has changed
self.options.selected = self.options.selected.map(function(id_) {
return id_ == data[key] ? value : id_
});
}
if (!self.isAsync) {
self.options.items[pos][key] = value;
}
data[key] = value;
$item.options({data: data});
return that;
}
};
return that;
};