mirror of
https://github.com/galaxyproject/galaxy.git
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881 lines
31 KiB
JavaScript
881 lines
31 KiB
JavaScript
/**
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* functions for creating major ui elements
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*/
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/**
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* backbone model for icon buttons
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*/
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var IconButton = Backbone.Model.extend({
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defaults: {
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title : "",
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icon_class : "",
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on_click : null,
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menu_options : null,
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is_menu_button : true,
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id : null,
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href : null,
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target : null,
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enabled : true,
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visible : true,
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tooltip_config : {}
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}
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});
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/**
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* backbone view for icon buttons
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*/
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var IconButtonView = Backbone.View.extend({
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initialize : function(){
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// better rendering this way
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this.model.attributes.tooltip_config = { placement : 'bottom' };
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this.model.bind( 'change', this.render, this );
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},
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render : function( ){
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// hide tooltip
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this.$el.tooltip( 'hide' );
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var new_elem = this.template( this.model.toJSON() );
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// configure tooltip
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new_elem.tooltip( this.model.get( 'tooltip_config' ));
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this.$el.replaceWith( new_elem );
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this.setElement( new_elem );
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return this;
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},
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events : {
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'click' : 'click'
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},
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click : function( event ){
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// if on_click pass to that function
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if( _.isFunction( this.model.get( 'on_click' ) ) ){
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this.model.get( 'on_click' )( event );
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return false;
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}
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// otherwise, bubble up ( to href or whatever )
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return true;
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},
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// generate html element
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template: function( options ){
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var buffer = 'title="' + options.title + '" class="icon-button';
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if( options.is_menu_button ){
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buffer += ' menu-button';
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}
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buffer += ' ' + options.icon_class;
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if( !options.enabled ){
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buffer += '_disabled';
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}
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// close class tag
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buffer += '"';
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if( options.id ){
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buffer += ' id="' + options.id + '"';
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}
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buffer += ' href="' + options.href + '"';
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// add target for href
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if( options.target ){
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buffer += ' target="' + options.target + '"';
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}
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// set visibility
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if( !options.visible ){
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buffer += ' style="display: none;"';
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}
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// enabled/disabled
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if ( options.enabled ){
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buffer = '<a ' + buffer + '/>';
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} else {
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buffer = '<span ' + buffer + '/>';
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}
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// return element
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return $( buffer );
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}
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} );
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// define collection
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var IconButtonCollection = Backbone.Collection.extend({
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model: IconButton
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});
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/**
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* menu with multiple icon buttons
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* views are not needed nor used for individual buttons
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*/
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var IconButtonMenuView = Backbone.View.extend({
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tagName: 'div',
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initialize: function(){
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this.render();
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},
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render: function(){
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// initialize icon buttons
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var self = this;
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this.collection.each(function(button){
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// create and add icon button to menu
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var elt = $('<a/>')
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.attr('href', 'javascript:void(0)')
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.attr('title', button.attributes.title)
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.addClass('icon-button menu-button')
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.addClass(button.attributes.icon_class)
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.appendTo(self.$el)
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.click(button.attributes.on_click);
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// configure tooltip
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if (button.attributes.tooltip_config){
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elt.tooltip(button.attributes.tooltip_config);
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}
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// add popup menu to icon
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var menu_options = button.get('options');
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if (menu_options){
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make_popupmenu(elt, menu_options);
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}
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});
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// return
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return this;
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}
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});
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/**
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* Returns an IconButtonMenuView for the provided configuration.
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* Configuration is a list of dictionaries where each dictionary
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* defines an icon button. Each dictionary must have the following
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* elements: icon_class, title, and on_click.
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*/
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var create_icon_buttons_menu = function(config, global_config)
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{
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// initialize global configuration
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if (!global_config) global_config = {};
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// create and initialize menu
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var buttons = new IconButtonCollection(
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_.map(config, function(button_config){
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return new IconButton(_.extend(button_config, global_config));
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})
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);
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// return menu
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return new IconButtonMenuView( {collection: buttons} );
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};
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// =============================================================================
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/**
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*
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*/
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var Grid = Backbone.Collection.extend({
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});
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/**
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*
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*/
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var GridView = Backbone.View.extend({
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});
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// =============================================================================
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/**
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* view for a popup menu
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*/
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var PopupMenu = Backbone.View.extend({
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//TODO: maybe better as singleton off the Galaxy obj
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/** Cache the desired button element and options, set up the button click handler
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* NOTE: attaches this view as HTML/jQ data on the button for later use.
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*/
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initialize: function( $button, options ){
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// default settings
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this.$button = $button;
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if( !this.$button.size() ){
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this.$button = $( '<div/>' );
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}
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this.options = options || [];
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// set up button click -> open menu behavior
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var menu = this;
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this.$button.click( function( event ){
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// if there's already a menu open, remove it
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$( '.popmenu-wrapper' ).remove();
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menu._renderAndShow( event );
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return false;
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});
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},
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// render the menu, append to the page body at the click position, and set up the 'click-away' handlers, show
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_renderAndShow: function( clickEvent ){
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this.render();
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this.$el.appendTo( 'body' ).css( this._getShownPosition( clickEvent )).show();
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this._setUpCloseBehavior();
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},
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// render the menu
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// this menu doesn't attach itself to the DOM ( see _renderAndShow )
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render: function(){
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// render the menu body absolute and hidden, fill with template
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this.$el.addClass( 'popmenu-wrapper' ).hide()
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.css({ position : 'absolute' })
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.html( this.template( this.$button.attr( 'id' ), this.options ));
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// set up behavior on each link/anchor elem
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if( this.options.length ){
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var menu = this;
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//precondition: there should be one option per li
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this.$el.find( 'li' ).each( function( i, li ){
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var option = menu.options[i];
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// if the option has 'func', call that function when the anchor is clicked
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if( option.func ){
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$( this ).children( 'a.popupmenu-option' ).click( function( event ){
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option.func.call( menu, event, option );
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// bubble up so that an option click will call the close behavior
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//return false;
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});
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}
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});
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}
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return this;
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},
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template : function( id, options ){
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return [
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'<ul id="', id, '-menu" class="dropdown-menu">', this._templateOptions( options ), '</ul>'
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].join( '' );
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},
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_templateOptions : function( options ){
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if( !options.length ){
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return '<li>(no options)</li>';
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}
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return _.map( options, function( option ){
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if( option.divider ){
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return '<li class="divider"></li>';
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} else if( option.header ){
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return [ '<li class="head"><a href="javascript:void(0);">', option.html, '</a></li>' ].join( '' );
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}
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var href = option.href || 'javascript:void(0);',
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target = ( option.target )?( ' target="' + option.target + '"' ):( '' ),
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check = ( option.checked )?( '<span class="fa fa-check"></span>' ):( '' );
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return [
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'<li><a class="popupmenu-option" href="', href, '"', target, '>',
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check, option.html,
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'</a></li>'
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].join( '' );
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}).join( '' );
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},
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// get the absolute position/offset for the menu
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_getShownPosition : function( clickEvent ){
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// display menu horiz. centered on click...
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var menuWidth = this.$el.width();
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var x = clickEvent.pageX - menuWidth / 2 ;
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// adjust to handle horiz. scroll and window dimensions ( draw entirely on visible screen area )
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x = Math.min( x, $( document ).scrollLeft() + $( window ).width() - menuWidth - 5 );
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x = Math.max( x, $( document ).scrollLeft() + 5 );
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return {
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top: clickEvent.pageY,
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left: x
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};
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},
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// bind an event handler to all available frames so that when anything is clicked
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// the menu is removed from the DOM and the event handler unbinds itself
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_setUpCloseBehavior: function(){
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var menu = this;
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//TODO: alternately: focus hack, blocking overlay, jquery.blockui
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// function to close popup and unbind itself
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function closePopup( event ){
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$( document ).off( 'click.close_popup' );
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if( window.parent !== window ){
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try {
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$( window.parent.document ).off( "click.close_popup" );
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} catch( err ){}
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} else {
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try {
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$( 'iframe#galaxy_main' ).contents().off( "click.close_popup" );
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} catch( err ){}
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}
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menu.remove();
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}
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$( 'html' ).one( "click.close_popup", closePopup );
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if( window.parent !== window ){
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try {
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$( window.parent.document ).find( 'html' ).one( "click.close_popup", closePopup );
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} catch( err ){}
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} else {
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try {
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$( 'iframe#galaxy_main' ).contents().one( "click.close_popup", closePopup );
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} catch( err ){}
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}
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},
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// add a menu option/item at the given index
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addItem: function( item, index ){
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// append to end if no index
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index = ( index >= 0 ) ? index : this.options.length;
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this.options.splice( index, 0, item );
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return this;
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},
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// remove a menu option/item at the given index
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removeItem: function( index ){
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if( index >=0 ){
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this.options.splice( index, 1 );
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}
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return this;
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},
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// search for a menu option by it's html
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findIndexByHtml: function( html ){
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for( var i = 0; i < this.options.length; i++ ){
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if( _.has( this.options[i], 'html' ) && ( this.options[i].html === html )){
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return i;
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}
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}
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return null;
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},
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// search for a menu option by it's html
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findItemByHtml: function( html ){
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return this.options[( this.findIndexByHtml( html ))];
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},
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// string representation
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toString: function(){
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return 'PopupMenu';
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}
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});
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// -----------------------------------------------------------------------------
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// the following class functions are bridges from the original make_popupmenu and make_popup_menus
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// to the newer backbone.js PopupMenu
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/** Create a PopupMenu from simple map initial_options activated by clicking button_element.
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* Converts initial_options to object array used by PopupMenu.
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* @param {jQuery|DOMElement} button_element element which, when clicked, activates menu
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* @param {Object} initial_options map of key -> values, where
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* key is option text, value is fn to call when option is clicked
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* @returns {PopupMenu} the PopupMenu created
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*/
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PopupMenu.make_popupmenu = function( button_element, initial_options ){
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var convertedOptions = [];
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_.each( initial_options, function( optionVal, optionKey ){
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var newOption = { html: optionKey };
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// keys with null values indicate: header
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if( optionVal === null ){ // !optionVal? (null only?)
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newOption.header = true;
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// keys with function values indicate: a menu option
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} else if( jQuery.type( optionVal ) === 'function' ){
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newOption.func = optionVal;
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}
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//TODO:?? any other special optionVals?
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// there was no divider option originally
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convertedOptions.push( newOption );
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});
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return new PopupMenu( $( button_element ), convertedOptions );
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};
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/** Find all anchors in $parent (using selector) and covert anchors into a PopupMenu options map.
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* @param {jQuery} $parent the element that contains the links to convert to options
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* @param {String} selector jq selector string to find links
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* @returns {Object[]} the options array to initialize a PopupMenu
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*/
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//TODO: lose parent and selector, pass in array of links, use map to return options
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PopupMenu.convertLinksToOptions = function( $parent, selector ){
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$parent = $( $parent );
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selector = selector || 'a';
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var options = [];
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$parent.find( selector ).each( function( elem, i ){
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var option = {}, $link = $( elem );
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// convert link text to the option text (html) and the href into the option func
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option.html = $link.text();
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if( $link.attr( 'href' ) ){
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var linkHref = $link.attr( 'href' ),
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linkTarget = $link.attr( 'target' ),
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confirmText = $link.attr( 'confirm' );
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option.func = function(){
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// if there's a "confirm" attribute, throw up a confirmation dialog, and
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// if the user cancels - do nothing
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if( ( confirmText ) && ( !confirm( confirmText ) ) ){ return; }
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// if there's no confirm attribute, or the user accepted the confirm dialog:
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switch( linkTarget ){
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// relocate the center panel
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case '_parent':
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window.parent.location = linkHref;
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break;
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// relocate the entire window
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case '_top':
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window.top.location = linkHref;
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break;
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// relocate this panel
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default:
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window.location = linkHref;
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}
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};
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}
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options.push( option );
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});
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return options;
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};
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/** Create a single popupmenu from existing DOM button and anchor elements
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* @param {jQuery} $buttonElement the element that when clicked will open the menu
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* @param {jQuery} $menuElement the element that contains the anchors to convert into a menu
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* @param {String} menuElementLinkSelector jq selector string used to find anchors to be made into menu options
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* @returns {PopupMenu} the PopupMenu (Backbone View) that can render, control the menu
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*/
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PopupMenu.fromExistingDom = function( $buttonElement, $menuElement, menuElementLinkSelector ){
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$buttonElement = $( $buttonElement );
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$menuElement = $( $menuElement );
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var options = PopupMenu.convertLinksToOptions( $menuElement, menuElementLinkSelector );
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// we're done with the menu (having converted it to an options map)
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$menuElement.remove();
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return new PopupMenu( $buttonElement, options );
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};
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/** Create all popupmenus within a document or a more specific element
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* @param {DOMElement} parent the DOM element in which to search for popupmenus to build (defaults to document)
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* @param {String} menuSelector jq selector string to find popupmenu menu elements (defaults to "div[popupmenu]")
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* @param {Function} buttonSelectorBuildFn the function to build the jq button selector.
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* Will be passed $menuElement, parent.
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* (Defaults to return '#' + $menuElement.attr( 'popupmenu' ); )
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* @returns {PopupMenu[]} array of popupmenus created
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*/
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PopupMenu.make_popup_menus = function( parent, menuSelector, buttonSelectorBuildFn ){
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parent = parent || document;
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// orig. Glx popupmenu menus have a (non-std) attribute 'popupmenu'
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// which contains the id of the button that activates the menu
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menuSelector = menuSelector || 'div[popupmenu]';
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// default to (orig. Glx) matching button to menu by using the popupmenu attr of the menu as the id of the button
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buttonSelectorBuildFn = buttonSelectorBuildFn || function( $menuElement, parent ){
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return '#' + $menuElement.attr( 'popupmenu' );
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};
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// aggregate and return all PopupMenus
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var popupMenusCreated = [];
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$( parent ).find( menuSelector ).each( function(){
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var $menuElement = $( this ),
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$buttonElement = $( parent ).find( buttonSelectorBuildFn( $menuElement, parent ) );
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popupMenusCreated.push( PopupMenu.fromDom( $buttonElement, $menuElement ) );
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$buttonElement.addClass( 'popup' );
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});
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return popupMenusCreated;
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};
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//==============================================================================
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var faIconButton = function( options ){
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//TODO: move out of global
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options = options || {};
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options.tooltipConfig = options.tooltipConfig || { placement: 'bottom' };
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options.classes = [ 'icon-btn' ].concat( options.classes || [] );
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if( options.disabled ){
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options.classes.push( 'disabled' );
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}
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var html = [
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'<a class="', options.classes.join( ' ' ), '"',
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(( options.title )?( ' title="' + options.title + '"' ):( '' )),
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(( !options.disabled && options.target )? ( ' target="' + options.target + '"' ):( '' )),
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' href="', (( !options.disabled && options.href )?( options.href ):( 'javascript:void(0);' )), '">',
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// could go with something less specific here - like 'html'
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'<span class="fa ', options.faIcon, '"></span>',
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'</a>'
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].join( '' );
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var $button = $( html ).tooltip( options.tooltipConfig );
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if( _.isFunction( options.onclick ) ){
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$button.click( options.onclick );
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}
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return $button;
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};
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//==============================================================================
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(function(){
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/** searchInput: (jQuery plugin)
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* Creates a search input, a clear button, and loading indicator
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* within the selected node.
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*
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* When the user either presses return or enters some minimal number
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* of characters, a callback is called. Pressing ESC when the input
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* is focused will clear the input and call a separate callback.
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*/
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// contructor
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function searchInput( parentNode, options ){
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//TODO: consolidate with tool menu functionality, use there
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var KEYCODE_ESC = 27,
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KEYCODE_RETURN = 13,
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$parentNode = $( parentNode ),
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firstSearch = true,
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defaults = {
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initialVal : '',
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name : 'search',
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placeholder : 'search',
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classes : '',
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onclear : function(){},
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onfirstsearch : null,
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onsearch : function( inputVal ){},
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minSearchLen : 0,
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escWillClear : true,
|
|
oninit : function(){}
|
|
};
|
|
|
|
// .................................................................... input rendering and events
|
|
// visually clear the search, trigger an event, and call the callback
|
|
function clearSearchInput( event ){
|
|
//console.debug( this, 'clear' );
|
|
var $input = $( this ).parent().children( 'input' );
|
|
//console.debug( 'input', $input );
|
|
$input.val( '' );
|
|
$input.trigger( 'clear:searchInput' );
|
|
options.onclear();
|
|
}
|
|
|
|
// search for searchTerms, trigger an event, call the appropo callback (based on whether this is the first)
|
|
function search( event, searchTerms ){
|
|
//console.debug( this, 'searching', searchTerms );
|
|
$( this ).trigger( 'search:searchInput', searchTerms );
|
|
if( typeof options.onfirstsearch === 'function' && firstSearch ){
|
|
firstSearch = false;
|
|
options.onfirstsearch( searchTerms );
|
|
} else {
|
|
options.onsearch( searchTerms );
|
|
}
|
|
}
|
|
|
|
// .................................................................... input rendering and events
|
|
function inputTemplate(){
|
|
// class search-query is bootstrap 2.3 style that now lives in base.less
|
|
return [ '<input type="text" name="', options.name, '" placeholder="', options.placeholder, '" ',
|
|
'class="search-query ', options.classes, '" ', '/>' ].join( '' );
|
|
}
|
|
|
|
// the search input that responds to keyboard events and displays the search value
|
|
function $input(){
|
|
return $( inputTemplate() )
|
|
// select all text on a focus
|
|
.focus( function( event ){
|
|
$( this ).select();
|
|
})
|
|
// attach behaviors to esc, return if desired, search on some min len string
|
|
.keyup( function( event ){
|
|
// esc key will clear if desired
|
|
if( event.which === KEYCODE_ESC && options.escWillClear ){
|
|
clearSearchInput.call( this, event );
|
|
|
|
} else {
|
|
var searchTerms = $( this ).val();
|
|
// return key or the search string len > minSearchLen (if not 0) triggers search
|
|
if( ( event.which === KEYCODE_RETURN )
|
|
|| ( options.minSearchLen && searchTerms.length >= options.minSearchLen ) ){
|
|
search.call( this, event, searchTerms );
|
|
} else if( !searchTerms.length ){
|
|
clearSearchInput.call( this, event );
|
|
}
|
|
}
|
|
})
|
|
.val( options.initialVal );
|
|
}
|
|
|
|
// .................................................................... clear button rendering and events
|
|
// a button for clearing the search bar, placed on the right hand side
|
|
function $clearBtn(){
|
|
return $([ '<span class="search-clear fa fa-times-circle" ',
|
|
'title="', _l( 'clear search (esc)' ), '"></span>' ].join('') )
|
|
.tooltip({ placement: 'bottom' })
|
|
.click( function( event ){
|
|
clearSearchInput.call( this, event );
|
|
});
|
|
}
|
|
|
|
// .................................................................... loadingIndicator rendering
|
|
// a button for clearing the search bar, placed on the right hand side
|
|
function $loadingIndicator(){
|
|
return $([ '<span class="search-loading fa fa-spinner fa-spin" ',
|
|
'title="', _l( 'loading...' ), '"></span>' ].join('') )
|
|
.hide().tooltip({ placement: 'bottom' });
|
|
}
|
|
|
|
// .................................................................... commands
|
|
// visually swap the load, clear buttons
|
|
function toggleLoadingIndicator(){
|
|
$parentNode.find( '.search-loading' ).toggle();
|
|
$parentNode.find( '.search-clear' ).toggle();
|
|
}
|
|
|
|
// .................................................................... init
|
|
// string command (not constructor)
|
|
if( jQuery.type( options ) === 'string' ){
|
|
if( options === 'toggle-loading' ){
|
|
toggleLoadingIndicator();
|
|
}
|
|
return $parentNode;
|
|
}
|
|
|
|
// initial render
|
|
if( jQuery.type( options ) === 'object' ){
|
|
options = jQuery.extend( true, defaults, options );
|
|
}
|
|
//NOTE: prepended
|
|
return $parentNode.addClass( 'search-input' ).prepend([ $input(), $clearBtn(), $loadingIndicator() ]);
|
|
}
|
|
|
|
// as jq plugin
|
|
jQuery.fn.extend({
|
|
searchInput : function $searchInput( options ){
|
|
return this.each( function(){
|
|
return searchInput( this, options );
|
|
});
|
|
}
|
|
});
|
|
}());
|
|
|
|
|
|
//==============================================================================
|
|
(function(){
|
|
/** Multi 'mode' button (or any element really) that changes the html
|
|
* contents of itself when clicked. Pass in an ordered list of
|
|
* objects with 'html' and (optional) onclick functions.
|
|
*
|
|
* When clicked in a particular node, the onclick function will
|
|
* be called (with the element as this) and the element will
|
|
* switch to the next mode, replacing it's html content with
|
|
* that mode's html.
|
|
*
|
|
* If there is no next mode, the element will switch back to
|
|
* the first mode.
|
|
* @example:
|
|
* $( '.myElement' ).modeButton({
|
|
* modes : [
|
|
* {
|
|
* mode: 'bler',
|
|
* html: '<h5>Bler</h5>',
|
|
* onclick : function(){
|
|
* $( 'body' ).css( 'background-color', 'red' );
|
|
* }
|
|
* },
|
|
* {
|
|
* mode: 'bloo',
|
|
* html: '<h4>Bloo</h4>',
|
|
* onclick : function(){
|
|
* $( 'body' ).css( 'background-color', 'blue' );
|
|
* }
|
|
* },
|
|
* {
|
|
* mode: 'blah',
|
|
* html: '<h3>Blah</h3>',
|
|
* onclick : function(){
|
|
* $( 'body' ).css( 'background-color', 'grey' );
|
|
* }
|
|
* },
|
|
* ]
|
|
* });
|
|
* $( '.myElement' ).modeButton( 'callModeFn', 'bler' );
|
|
*/
|
|
function ModeButton( element, options ){
|
|
this.currModeIndex = 0;
|
|
return this.init( element, options );
|
|
}
|
|
|
|
ModeButton.prototype.DATA_KEY = 'mode-button';
|
|
ModeButton.prototype.defaults = {
|
|
modes : [
|
|
{ mode: 'default' }
|
|
]
|
|
};
|
|
|
|
ModeButton.prototype.init = function _init( element, options ){
|
|
options = options || {};
|
|
this.$element = $( element );
|
|
this.options = jQuery.extend( true, this.defaults, options );
|
|
|
|
var modeButton = this;
|
|
this.$element.click( function _ModeButtonClick( event ){
|
|
|
|
// call the curr mode fn
|
|
modeButton.callModeFn();
|
|
// inc the curr mode index
|
|
modeButton._incModeIndex();
|
|
// set the element html
|
|
$( this ).html( modeButton.options.modes[ modeButton.currModeIndex ].html );
|
|
});
|
|
|
|
this.currModeIndex = 0;
|
|
if( this.options.initialMode ){
|
|
this.currModeIndex = this._getModeIndex( this.options.initialMode );
|
|
}
|
|
return this;
|
|
};
|
|
|
|
|
|
ModeButton.prototype._getModeIndex = function __getModeIndex( modeKey ){
|
|
for( var i=0; i<this.options.modes.length; i+=1 ){
|
|
if( this.options.modes[ i ].mode === modeKey ){ return i; }
|
|
}
|
|
throw new Error( 'mode not found: ' + modeKey );
|
|
};
|
|
ModeButton.prototype.getCurrMode = function _getCurrMode(){
|
|
return this.options.modes[ this.currModeIndex ];
|
|
};
|
|
ModeButton.prototype.getMode = function _getMode( modeKey ){
|
|
if( !modeKey ){ return this.getCurrMode(); }
|
|
return this.options.modes[( this._getModeIndex( modeKey ) )];
|
|
};
|
|
ModeButton.prototype.hasMode = function _hasMode( modeKey ){
|
|
return !!this.getMode( modeKey );
|
|
};
|
|
ModeButton.prototype.currentMode = function _currentMode(){
|
|
return this.options.modes[ this.currModeIndex ];
|
|
};
|
|
ModeButton.prototype.setMode = function _setMode( newModeKey ){
|
|
var newMode = this.getMode( newModeKey );
|
|
this.$element.html( newMode.html || null );
|
|
return this;
|
|
};
|
|
ModeButton.prototype._incModeIndex = function __incModeIndex(){
|
|
this.currModeIndex += 1;
|
|
if( this.currModeIndex >= this.options.modes.length ){
|
|
this.currModeIndex = 0;
|
|
}
|
|
return this;
|
|
};
|
|
ModeButton.prototype.callModeFn = function _callModeFn( modeKey ){
|
|
var modeFn = this.getMode( modeKey ).onclick;
|
|
if( modeFn && jQuery.type( modeFn === 'function' ) ){
|
|
return modeFn.call( this );
|
|
}
|
|
return undefined;
|
|
};
|
|
|
|
// as jq plugin
|
|
jQuery.fn.extend({
|
|
modeButton : function $modeButton( options ){
|
|
var nonOptionsArgs = jQuery.makeArray( arguments ).slice( 1 );
|
|
return this.each( function(){
|
|
var $this = $( this ),
|
|
data = $this.data( 'mode-button' );
|
|
|
|
if( jQuery.type( options ) === 'object' ){
|
|
data = new ModeButton( $this, options );
|
|
$this.data( 'mode-button', data );
|
|
}
|
|
if( data && jQuery.type( options ) === 'string' ){
|
|
var fn = data[ options ];
|
|
if( jQuery.type( fn ) === 'function' ){
|
|
return fn.apply( data, nonOptionsArgs );
|
|
}
|
|
}
|
|
return this;
|
|
});
|
|
}
|
|
});
|
|
}());
|
|
|
|
|
|
//==============================================================================
|
|
function LoadingIndicator( $where, options ){
|
|
//TODO: move out of global
|
|
//TODO: too specific to history panel
|
|
|
|
var self = this;
|
|
// defaults
|
|
options = jQuery.extend({
|
|
cover : false
|
|
}, options || {} );
|
|
|
|
function render(){
|
|
var html = [
|
|
'<div class="loading-indicator">',
|
|
'<div class="loading-indicator-text">',
|
|
'<span class="fa fa-spinner fa-spin fa-lg"></span>',
|
|
'<span class="loading-indicator-message">loading...</span>',
|
|
'</div>',
|
|
'</div>'
|
|
].join( '\n' );
|
|
|
|
var $indicator = $( html ).hide().css( options.css || {
|
|
position : 'fixed'
|
|
}),
|
|
$text = $indicator.children( '.loading-indicator-text' );
|
|
|
|
if( options.cover ){
|
|
$indicator.css({
|
|
'z-index' : 2,
|
|
top : $where.css( 'top' ),
|
|
bottom : $where.css( 'bottom' ),
|
|
left : $where.css( 'left' ),
|
|
right : $where.css( 'right' ),
|
|
opacity : 0.5,
|
|
'background-color': 'white',
|
|
'text-align': 'center'
|
|
});
|
|
$text = $indicator.children( '.loading-indicator-text' ).css({
|
|
'margin-top' : '20px'
|
|
});
|
|
|
|
} else {
|
|
$text = $indicator.children( '.loading-indicator-text' ).css({
|
|
margin : '12px 0px 0px 10px',
|
|
opacity : '0.85',
|
|
color : 'grey'
|
|
});
|
|
$text.children( '.loading-indicator-message' ).css({
|
|
margin : '0px 8px 0px 0px',
|
|
'font-style' : 'italic'
|
|
});
|
|
}
|
|
return $indicator;
|
|
}
|
|
|
|
self.show = function( msg, speed, callback ){
|
|
msg = msg || 'loading...';
|
|
speed = speed || 'fast';
|
|
// since position is fixed - we insert as sibling
|
|
self.$indicator = render().insertBefore( $where );
|
|
self.message( msg );
|
|
self.$indicator.fadeIn( speed, callback );
|
|
return self;
|
|
};
|
|
|
|
self.message = function( msg ){
|
|
self.$indicator.find( 'i' ).text( msg );
|
|
};
|
|
|
|
self.hide = function( speed, callback ){
|
|
speed = speed || 'fast';
|
|
if( self.$indicator && self.$indicator.size() ){
|
|
self.$indicator.fadeOut( speed, function(){
|
|
self.$indicator.remove();
|
|
if( callback ){ callback(); }
|
|
});
|
|
} else {
|
|
if( callback ){ callback(); }
|
|
}
|
|
return self;
|
|
};
|
|
return self;
|
|
}
|