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Backbone UI enhancements: create collection of tools in tool panel and use to get model when a tool link is clicked.

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This commit is contained in:
Jeremy Goecks
2012-04-10 11:19:47 -04:00
parent f8037ed111
commit 0a8c7565fe
1 changed files with 52 additions and 5 deletions
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static/scripts/backbone/tools.js
+52 -5
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@@ -44,6 +44,13 @@ var Tool = BaseModel.extend({
}
});
/**
* Wrap collection of tools for fast access/manipulation.
*/
var ToolCollection = Backbone.Collection.extend({
model: Tool
});
/**
* Label or section header in tool panel.
*/
@@ -149,6 +156,8 @@ var ToolSearch = BaseModel.extend({
*/
var ToolPanel = Backbone.Collection.extend({
url: "/tools",
tools: new ToolCollection(),
parse: function(response) {
// Recursive function to parse tool panel elements.
var parse_elt = function(elt_dict) {
@@ -173,6 +182,27 @@ var ToolPanel = Backbone.Collection.extend({
initialize: function(options) {
this.tool_search = options.tool_search;
this.tool_search.on("change:results", this.apply_search_results, this);
this.on("reset", this.populate_tools, this);
},
/**
* Populate tool collection from panel elements.
*/
populate_tools: function() {
var self = this;
self.tools = new ToolCollection();
this.each(function(panel_elt) {
if (panel_elt instanceof ToolPanelSection) {
_.each(panel_elt.attributes.elems, function (section_elt) {
if (section_elt instanceof Tool) {
self.tools.push(section_elt);
}
});
}
else if (panel_elt instanceof Tool) {
self.tools.push(panel_elt);
}
});
},
clear_search_results: function() {
@@ -358,34 +388,51 @@ var ToolPanelView = Backbone.View.extend({
*/
initialize: function(options) {
this.collection.tool_search.on("change:results", this.handle_search_results, this);
this.tool_link_click_fn = null;
if (options && 'tool_link_click_fn' in options) {
this.tool_link_click_fn = options.tool_link_click_fn;
}
},
render: function() {
var this_el = this.$el;
var self = this;
// Render search.
var search_view = new ToolSearchView( {model: this.collection.tool_search} );
search_view.render();
this_el.append(search_view.$el);
self.$el.append(search_view.$el);
// Render panel.
this.collection.each(function(panel_elt) {
if (panel_elt instanceof ToolPanelSection) {
var section_title_view = new ToolPanelSectionView({model: panel_elt});
section_title_view.render();
this_el.append(section_title_view.$el);
self.$el.append(section_title_view.$el);
}
else if (panel_elt instanceof Tool) {
var tool_view = new ToolLinkView({model: panel_elt, className: "toolTitleNoSection"});
tool_view.render();
this_el.append(tool_view.$el);
self.$el.append(tool_view.$el);
}
else if (panel_elt instanceof ToolPanelLabel) {
var label_view = new ToolPanelLabelView({model: panel_elt});
label_view.render();
this_el.append(label_view.$el);
self.$el.append(label_view.$el);
}
});
// Setup tool link click handling.
if (self.tool_link_click_fn) {
self.$el.find("a.tool-link").click(function() {
// Tool id is always the first class.
var tool_id = $(this).attr('class').split(/\s+/)[0];
self.tool_link_click_fn(self.collection.tools.get(tool_id));
return false;
});
}
return this;
},