Files
edx-platform/cms/static/js/views/feedback.js
2013-05-22 15:55:52 -04:00

104 lines
3.5 KiB
JavaScript

CMS.Views.Alert = Backbone.View.extend({
options: {
type: "alert",
shown: true, // is this view currently being shown?
closeIcon: true, // should we render a close button in the top right corner?
minShown: 0, // length of time after this view has been shown before it can be hidden (milliseconds)
maxShown: Infinity // length of time after this view has been shown before it will be automatically hidden (milliseconds)
},
initialize: function() {
var tpl = $("#"+this.options.type+"-tpl").text();
if(!tpl) {
console.error("Couldn't load template from ID "+this.options.type+"-tpl");
}
this.template = _.template(tpl);
this.setElement($("#page-"+this.options.type));
this.listenTo(this.model, 'change', this.render);
return this.show();
},
render: function() {
var attrs = $.extend({}, this.options, this.model.attributes);
this.$el.html(this.template(attrs));
return this;
},
events: {
"click .action-close": "hide",
"click .action-primary": "primaryClick",
"click .action-secondary": "secondaryClick"
},
show: function() {
clearTimeout(this.hideTimeout);
this.options.shown = true;
this.shownAt = new Date();
this.render();
if($.isNumeric(this.options.maxShown)) {
this.hideTimeout = setTimeout($.proxy(this.hide, this),
this.options.maxShown);
}
return this;
},
hide: function() {
if(this.shownAt && $.isNumeric(this.options.minShown) &&
this.options.minShown > new Date() - this.shownAt)
{
clearTimeout(this.hideTimeout);
this.hideTimeout = setTimeout($.proxy(this.hide, this),
this.options.minShown - (new Date() - this.shownAt));
} else {
this.options.shown = false;
delete this.shownAt;
this.render();
}
return this;
},
primaryClick: function() {
var actions = this.model.get("actions");
if(!actions) { return; }
var primary = actions.primary;
if(!primary) { return; }
if(primary.click) {
primary.click.call(this.model, this);
}
},
secondaryClick: function(e) {
var actions = this.model.get("actions");
if(!actions) { return; }
var secondaryList = actions.secondary;
if(!secondaryList) { return; }
// which secondary action was clicked?
var i;
if(e && e.target) {
i = _.indexOf(this.$(".action-secondary"), e.target);
} else {
i = 0;
}
var secondary = this.model.get("actions").secondary[i];
if(secondary.click) {
secondary.click.call(this.model, this);
}
}
});
CMS.Views.Notification = CMS.Views.Alert.extend({
options: $.extend({}, CMS.Views.Alert.prototype.options, {
type: "notification",
closeIcon: false
})
});
CMS.Views.Prompt = CMS.Views.Alert.extend({
options: $.extend({}, CMS.Views.Alert.prototype.options, {
type: "prompt",
closeIcon: false
}),
render: function() {
if(!window.$body) { window.$body = $(document.body); }
if(this.options.shown) {
$body.addClass('prompt-is-shown');
} else {
$body.removeClass('prompt-is-shown');
}
// super() in Javascript has awkward syntax :(
return CMS.Views.Alert.prototype.render.apply(this, arguments);
}
});