688 lines
22 KiB
JavaScript
688 lines
22 KiB
JavaScript
//vim: et:ts=4:sw=4:sts=4:ft=js
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/**
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options
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element the element the menu is attached to
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id the menu id
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items array of menu items
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mainmenu the main menu this menu is part of, if any
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offset offset of the menu, in px
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parent the supermenu, if any
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selected the position of the selected item
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side open to 'bottom' or 'right'
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size 'large', 'medium' or 'small'
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events:
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change_groupId {id, value} checked item of a group has changed
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click_itemId item not belonging to a group was clicked
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click_menuId {id, value} item not belonging to a group was clicked
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deselect_menuId {id, value} item was deselected not needed, not implemented
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hide_menuId menu was hidden
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select_menuId {id, value} item was selected
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*/
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Ox.Menu = function(options, self) {
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var self = self || {},
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that = new Ox.Element({}, self)
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.defaults({
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element: null,
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id: '',
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items: [],
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mainmenu: null,
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offset: {
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left: 0,
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top: 0
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},
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parent: null,
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selected: -1,
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side: 'bottom',
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size: 'medium',
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})
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.options(options || {})
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.addClass(
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'OxMenu Ox' + Ox.toTitleCase(self.options.side) +
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' Ox' + Ox.toTitleCase(self.options.size)
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)
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.click(click)
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.mouseenter(mouseenter)
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.mouseleave(mouseleave)
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.mousemove(mousemove)
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.bindEvent({
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key_up: selectPreviousItem,
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key_down: selectNextItem,
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key_left: selectSupermenu,
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key_right: selectSubmenu,
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key_escape: hideMenu,
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key_enter: clickSelectedItem
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}),
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itemHeight = self.options.size == 'small' ? 12 : (self.options.size == 'medium' ? 16 : 20),
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// menuHeight,
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scrollSpeed = 1,
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$item; // fixme: used?
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// fixme: attach all private vars to self
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// construct
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that.items = [];
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that.submenus = {};
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that.$scrollbars = [];
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that.$top = $('<div>')
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.addClass('OxTop')
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.appendTo(that.$element);
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that.$scrollbars.up = constructScrollbar('up')
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.appendTo(that.$element);
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that.$container = $('<div>')
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.addClass('OxContainer')
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.appendTo(that.$element);
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that.$content = $('<table>')
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.addClass('OxContent')
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.appendTo(that.$container);
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constructItems(self.options.items);
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that.$scrollbars.down = constructScrollbar('down')
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.appendTo(that.$element);
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that.$bottom = $('<div>')
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.addClass('OxBottom')
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.appendTo(that.$element);
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that.$layer = $('<div>')
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.addClass(self.options.mainmenu ? 'OxMainMenuLayer' : 'OxMenuLayer')
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.click(click);
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function click(event) {
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var item,
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position,
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$target = $(event.target),
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$parent = $target.parent();
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// necessary for highlight
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if ($parent.is('.OxCell')) {
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$target = $parent;
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$parent = $target.parent();
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}
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if ($target.is('.OxCell')) {
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position = $parent.data('position');
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item = that.items[position];
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if (!item.options('disabled')) {
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clickItem(position);
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} else {
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that.hideMenu();
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}
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} else {
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that.hideMenu();
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}
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}
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function clickItem(position) {
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var item = that.items[position],
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menu = self.options.mainmenu || self.options.parent || that,
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toggled;
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that.hideMenu();
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if (!item.options('items').length) {
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if (that.options('parent')) {
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that.options('parent').hideMenu().triggerEvent('click');
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}
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if (item.options('checked') !== null) {
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if (item.options('group')) {
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//Ox.print('has group', item.options('group'))
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toggled = self.optionGroups[item.options('group')].toggle(position);
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//Ox.print('toggled', toggled)
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if (toggled.length) {
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toggled.forEach(function(pos) {
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that.items[pos].toggleChecked();
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});
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//Ox.print('--triggering change event--');
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menu.triggerEvent('change', {
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id: item.options('group'),
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checked: $.map(self.optionGroups[item.options('group')].checked(), function(v, i) {
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return {
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id: that.items[v].options('id'),
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title: Ox.stripTags(that.items[v].options('title')[0])
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};
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})
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});
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}
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} else {
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item.toggleChecked();
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menu.triggerEvent('change', {
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checked: item.options('checked'),
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id: item.options('id'),
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title: Ox.stripTags(item.options('title')[0])
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});
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}
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} else {
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menu.triggerEvent('click', {
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id: item.options('id'),
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title: Ox.stripTags(item.options('title')[0])
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});
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}
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if (item.options('title').length == 2) {
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item.toggleTitle();
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}
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}
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}
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function clickSelectedItem() {
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// called on key.enter
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if (self.options.selected > -1) {
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clickItem(self.options.selected);
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} else {
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that.hideMenu();
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}
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}
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function constructItems(items) {
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that.$content.empty();
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scrollMenuUp();
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self.optionGroups = {};
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items.forEach(function(item, i) {
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if (item.group) {
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items[i] = $.map(item.items, function(v, i) {
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return $.extend(v, {
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group: item.group
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});
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});
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self.optionGroups[item.group] = new Ox.OptionGroup(
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items[i],
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'min' in item ? item.min : 1,
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'max' in item ? item.max : 1
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);
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}
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});
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items = Ox.flatten(items);
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that.items = [];
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items.forEach(function(item) {
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var position;
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if ('id' in item) {
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that.items.push(new Ox.MenuItem($.extend(item, {
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menu: that,
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position: position = that.items.length
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})).data('position', position).appendTo(that.$content)); // fixme: jquery bug when passing {position: position}? does not return the object?;
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if (item.items) {
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that.submenus[item.id] = new Ox.Menu({
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element: that.items[position],
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id: Ox.toCamelCase(self.options.id + '/' + item.id),
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items: item.items,
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mainmenu: self.options.mainmenu,
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offset: {
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left: 0,
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top: -4
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},
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parent: that,
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side: 'right',
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size: self.options.size,
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});
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}
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} else {
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that.$content.append(constructSpace());
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that.$content.append(constructLine());
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that.$content.append(constructSpace());
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}
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});
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if (!that.is(':hidden')) {
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that.hideMenu();
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that.showMenu();
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}
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}
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function constructLine() {
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return $('<tr>').append(
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$('<td>', {
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'class': 'OxLine',
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colspan: 5
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})
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);
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}
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function constructScrollbar(direction) {
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var interval,
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speed = direction == 'up' ? -1 : 1;
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return $('<div/>', {
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'class': 'OxScrollbar Ox' + Ox.toTitleCase(direction),
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html: Ox.UI.symbols['triangle_' + direction],
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click: function() { // fixme: do we need to listen to click event?
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return false;
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},
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mousedown: function() {
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scrollSpeed = 2;
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return false;
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},
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mouseenter: function() {
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var $otherScrollbar = that.$scrollbars[direction == 'up' ? 'down' : 'up'];
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$(this).addClass('OxSelected');
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if ($otherScrollbar.is(':hidden')) {
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$otherScrollbar.show();
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that.$container.height(that.$container.height() - itemHeight);
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if (direction == 'down') {
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that.$content.css({
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top: -itemHeight + 'px'
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});
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}
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}
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scrollMenu(speed);
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interval = setInterval(function() {
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scrollMenu(speed);
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}, 100);
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},
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mouseleave: function() {
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$(this).removeClass('OxSelected');
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clearInterval(interval);
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},
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mouseup: function() {
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scrollSpeed = 1;
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return false;
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}
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});
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}
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function constructSpace() {
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return $('<tr>').append(
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$('<td>', {
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'class': 'OxSpace',
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colspan: 5
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})
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);
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}
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function getElement(id) {
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// fixme: needed?
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return $('#' + Ox.toCamelCase(options.id + '/' + id));
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}
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function getItemPositionById(id) {
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var position;
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Ox.forEach(that.items, function(item, i) {
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if (item.options('id') == id) {
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position = i;
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return false;
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}
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});
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return position;
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}
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function hideMenu() {
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// called on key_escape
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that.hideMenu();
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}
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function isFirstEnabledItem() {
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var ret = true;
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Ox.forEach(that.items, function(item, i) {
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if (i < self.options.selected && !item.options('disabled')) {
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return ret = false;
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}
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});
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return ret;
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}
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function isLastEnabledItem() {
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var ret = true;
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Ox.forEach(that.items, function(item, i) {
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if (i > self.options.selected && !item.options('disabled')) {
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return ret = false;
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}
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});
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return ret;
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}
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function mouseenter() {
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that.gainFocus();
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}
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function mouseleave() {
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if (self.options.selected > -1 && !that.items[self.options.selected].options('items').length) {
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selectItem(-1);
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}
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}
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function mousemove(event) {
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var item,
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position,
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$target = $(event.target);
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$parent = $target.parent();
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if ($parent.is('.OxCell')) {
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$target = $parent;
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$parent = $target.parent();
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}
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if ($target.is('.OxCell')) {
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position = $parent.data('position');
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item = that.items[position];
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if (!item.options('disabled') && position != self.options.selected) {
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selectItem(position);
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}
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} else {
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mouseleave();
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}
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}
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function scrollMenu(speed) {
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var containerHeight = that.$container.height(),
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contentHeight = that.$content.height(),
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top = parseInt(that.$content.css('top')) || 0,
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min = containerHeight - contentHeight + itemHeight,
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max = 0;
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top += speed * scrollSpeed * -itemHeight;
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if (top <= min) {
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top = min;
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that.$scrollbars.down.hide().trigger('mouseleave');
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that.$container.height(containerHeight + itemHeight);
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that.items[that.items.length - 1].trigger('mouseover');
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} else if (top >= max - itemHeight) {
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top = max;
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that.$scrollbars.up.hide().trigger('mouseleave');
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that.$container.height(containerHeight + itemHeight);
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that.items[0].trigger('mouseover');
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}
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that.$content.css({
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top: top + 'px'
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});
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}
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function scrollMenuUp() {
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if (that.$scrollbars.up.is(':visible')) {
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that.$content.css({
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top: '0px'
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});
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that.$scrollbars.up.hide();
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if (that.$scrollbars.down.is(':hidden')) {
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that.$scrollbars.down.show();
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} else {
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that.$container.height(that.$container.height() + itemHeight);
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}
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}
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}
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function selectItem(position) {
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var item;
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if (self.options.selected > -1) {
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//Ox.print('s.o.s', self.options.selected, that.items)
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item = that.items[self.options.selected]
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item.removeClass('OxSelected');
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/* disabled
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that.triggerEvent('deselect', {
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id: item.options('id'),
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title: Ox.stripTags(item.options('title')[0])
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});
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*/
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}
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if (position > -1) {
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item = that.items[position];
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Ox.forEach(that.submenus, function(submenu, id) {
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if (!submenu.is(':hidden')) {
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submenu.hideMenu();
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return false;
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}
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});
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item.options('items').length && that.submenus[item.options('id')].showMenu(); // fixme: do we want to switch to this style?
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item.addClass('OxSelected');
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/* disabled
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that.triggerEvent('select', {
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id: item.options('id'),
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title: Ox.stripTags(item.options('title')[0])
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});
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*/
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}
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self.options.selected = position;
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}
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function selectNextItem() {
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var offset,
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selected = self.options.selected;
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//Ox.print('sNI', selected)
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if (!isLastEnabledItem()) {
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if (selected == -1) {
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scrollMenuUp();
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} else {
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that.items[selected].removeClass('OxSelected');
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}
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do {
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selected++;
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} while (that.items[selected].options('disabled'))
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selectItem(selected);
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offset = that.items[selected].offset().top + itemHeight -
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that.$container.offset().top - that.$container.height();
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if (offset > 0) {
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if (that.$scrollbars.up.is(':hidden')) {
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that.$scrollbars.up.show();
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that.$container.height(that.$container.height() - itemHeight);
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offset += itemHeight;
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}
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if (selected == that.items.length - 1) {
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that.$scrollbars.down.hide();
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that.$container.height(that.$container.height() + itemHeight);
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} else {
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that.$content.css({
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top: ((parseInt(that.$content.css('top')) || 0) - offset) + 'px'
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});
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}
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}
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}
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}
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function selectPreviousItem() {
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var offset,
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selected = self.options.selected;
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//Ox.print('sPI', selected)
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if (selected > - 1) {
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if (!isFirstEnabledItem()) {
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that.items[selected].removeClass('OxSelected');
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do {
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selected--;
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} while (that.items[selected].options('disabled'))
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selectItem(selected);
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}
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offset = that.items[selected].offset().top - that.$container.offset().top;
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if (offset < 0) {
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if (that.$scrollbars.down.is(':hidden')) {
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that.$scrollbars.down.show();
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that.$container.height(that.$container.height() - itemHeight);
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}
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if (selected == 0) {
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that.$scrollbars.up.hide();
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that.$container.height(that.$container.height() + itemHeight);
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}
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that.$content.css({
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top: ((parseInt(that.$content.css('top')) || 0) - offset) + 'px'
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});
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}
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}
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}
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function selectSubmenu() {
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//Ox.print('selectSubmenu', self.options.selected)
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if (self.options.selected > -1) {
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var submenu = that.submenus[that.items[self.options.selected].options('id')];
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//Ox.print('submenu', submenu, that.submenus);
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if (submenu && submenu.hasEnabledItems()) {
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submenu.gainFocus();
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submenu.selectFirstItem();
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} else if (self.options.mainmenu) {
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self.options.mainmenu.selectNextMenu();
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}
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} else if (self.options.mainmenu) {
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self.options.mainmenu.selectNextMenu();
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}
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}
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function selectSupermenu() {
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//Ox.print('selectSupermenu', self.options.selected)
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if (self.options.parent) {
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self.options.selected > -1 && that.items[self.options.selected].trigger('mouseleave');
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scrollMenuUp();
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self.options.parent.gainFocus();
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} else if (self.options.mainmenu) {
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self.options.mainmenu.selectPreviousMenu();
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}
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}
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self.onChange = function(key, value) {
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if (key == 'items') {
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constructItems(value);
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} else if (key == 'selected') {
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that.$content.find('.OxSelected').removeClass('OxSelected');
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selectItem(value);
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}
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}
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that.addItem = function(item, position) {
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};
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that.addItemAfter = function(item, id) {
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};
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that.addItemBefore = function(item, id) {
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};
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that.checkItem = function(id) {
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var item = that.getItem(id);
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if (item.options('group')) {
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var position = getItemPositionById(id),
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toggled = self.optionGroups[item.options('group')].toggle(position);
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if (toggled.length) {
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toggled.forEach(function(pos) {
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that.items[pos].toggleChecked();
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});
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}
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} else {
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item.options({
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checked: true
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});
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}
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};
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that.getItem = function(id) {
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//Ox.print('id', id)
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var ids = id.split('_'),
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item;
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if (ids.length == 1) {
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Ox.forEach(that.items, function(v) {
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if (v.options('id') == id) {
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item = v;
|
|
return false;
|
|
}
|
|
});
|
|
if (!item) {
|
|
Ox.forEach(that.submenus, function(submenu) {
|
|
item = submenu.getItem(id);
|
|
return !item;
|
|
});
|
|
}
|
|
} else {
|
|
item = that.submenus[ids.shift()].getItem(ids.join('_'));
|
|
}
|
|
return item;
|
|
};
|
|
|
|
that.getSubmenu = function(id) {
|
|
var ids = id.split('_'),
|
|
submenu;
|
|
if (ids.length == 1) {
|
|
submenu = that.submenus[id];
|
|
} else {
|
|
submenu = that.submenus[ids.shift()].getSubmenu(ids.join('_'));
|
|
}
|
|
//Ox.print('getSubmenu', id, submenu);
|
|
return submenu;
|
|
}
|
|
|
|
that.hasEnabledItems = function() {
|
|
var ret = false;
|
|
Ox.forEach(that.items, function(item) {
|
|
if (!item.options('disabled')) {
|
|
return ret = true;
|
|
}
|
|
});
|
|
return ret;
|
|
};
|
|
|
|
that.hideMenu = function() {
|
|
if (that.is(':hidden')) {
|
|
return;
|
|
}
|
|
Ox.forEach(that.submenus, function(submenu) {
|
|
if (submenu.is(':visible')) {
|
|
submenu.hideMenu();
|
|
return false;
|
|
}
|
|
});
|
|
selectItem(-1);
|
|
scrollMenuUp();
|
|
that.$scrollbars.up.is(':visible') && that.$scrollbars.up.hide();
|
|
that.$scrollbars.down.is(':visible') && that.$scrollbars.down.hide();
|
|
if (self.options.parent) {
|
|
//self.options.element.removeClass('OxSelected');
|
|
self.options.parent.options({
|
|
selected: -1
|
|
});
|
|
}
|
|
that.hide()
|
|
.loseFocus()
|
|
.triggerEvent('hide');
|
|
that.$layer.hide();
|
|
return that;
|
|
};
|
|
|
|
that.removeItem = function() {
|
|
|
|
};
|
|
|
|
that.selectFirstItem = function() {
|
|
selectNextItem();
|
|
};
|
|
|
|
that.showMenu = function() {
|
|
if (!that.is(':hidden')) {
|
|
return;
|
|
}
|
|
if (!self.options.parent && !that.$layer.parent().length) {
|
|
that.$layer.appendTo(Ox.UI.$body);
|
|
}
|
|
that.parent().length == 0 && that.appendTo(Ox.UI.$body);
|
|
that.css({
|
|
left: '-1000px',
|
|
top: '-1000px',
|
|
}).show();
|
|
var offset = self.options.element.offset(),
|
|
width = self.options.element.outerWidth(),
|
|
height = self.options.element.outerHeight(),
|
|
left = Ox.limit(
|
|
offset.left + self.options.offset.left + (self.options.side == 'bottom' ? 0 : width),
|
|
0, Ox.UI.$window.width() - that.width()
|
|
),
|
|
top = offset.top + self.options.offset.top + (self.options.side == 'bottom' ? height : 0),
|
|
menuHeight = that.$content.outerHeight(); // fixme: why is outerHeight 0 when hidden?
|
|
menuMaxHeight = Math.floor(Ox.UI.$window.height() - top - 16);
|
|
if (self.options.parent) {
|
|
if (menuHeight > menuMaxHeight) {
|
|
top = Ox.limit(top - menuHeight + menuMaxHeight, self.options.parent.offset().top, top);
|
|
menuMaxHeight = Math.floor(Ox.UI.$window.height() - top - 16);
|
|
}
|
|
}
|
|
that.css({
|
|
left: left + 'px',
|
|
top: top + 'px'
|
|
});
|
|
if (menuHeight > menuMaxHeight) {
|
|
that.$container.height(menuMaxHeight - itemHeight - 8); // margin
|
|
that.$scrollbars.down.show();
|
|
} else {
|
|
that.$container.height(menuHeight);
|
|
}
|
|
if (!self.options.parent) {
|
|
that.gainFocus();
|
|
}
|
|
that.$layer.show();
|
|
return that;
|
|
//that.triggerEvent('show');
|
|
};
|
|
|
|
that.toggleMenu = function() {
|
|
that.is(':hidden') ? that.showMenu() : that.hideMenu();
|
|
};
|
|
|
|
return that;
|
|
|
|
};
|