355 lines
13 KiB
JavaScript
355 lines
13 KiB
JavaScript
define(
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[
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"backbone", "underscore", "js/models/metadata", "js/views/abstract_editor",
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"js/views/transcripts/metadata_videolist", "jquery.maskedinput"
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],
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function(Backbone, _, MetadataModel, AbstractEditor, VideoList) {
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var Metadata = {};
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Metadata.Editor = Backbone.View.extend({
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// Model is CMS.Models.MetadataCollection,
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initialize : function() {
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var tpl = $("#metadata-editor-tpl").text();
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if(!tpl) {
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console.error("Couldn't load metadata editor template");
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}
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this.template = _.template(tpl);
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this.$el.html(this.template({numEntries: this.collection.length}));
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var counter = 0;
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var self = this;
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this.collection.each(
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function (model) {
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var data = {
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el: self.$el.find('.metadata_entry')[counter++],
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model: model
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};
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if (model.getType() === MetadataModel.SELECT_TYPE) {
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new Metadata.Option(data);
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}
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else if (model.getType() === MetadataModel.INTEGER_TYPE ||
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model.getType() === MetadataModel.FLOAT_TYPE) {
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new Metadata.Number(data);
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}
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else if(model.getType() === MetadataModel.LIST_TYPE) {
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new Metadata.List(data);
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}
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else if(model.getType() === MetadataModel.VIDEO_LIST_TYPE) {
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new VideoList(data);
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}
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else if(model.getType() === MetadataModel.RELATIVE_TIME_TYPE) {
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new Metadata.RelativeTime(data);
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}
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else {
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// Everything else is treated as GENERIC_TYPE, which uses String editor.
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new Metadata.String(data);
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}
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});
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},
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/**
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* Returns the just the modified metadata values, in the format used to persist to the server.
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*/
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getModifiedMetadataValues: function () {
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var modified_values = {};
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this.collection.each(
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function (model) {
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if (model.isModified()) {
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modified_values[model.getFieldName()] = model.getValue();
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}
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}
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);
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return modified_values;
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},
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/**
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* Returns a display name for the component related to this metadata. This method looks to see
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* if there is a metadata entry called 'display_name', and if so, it returns its value. If there
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* is no such entry, or if display_name does not have a value set, it returns an empty string.
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*/
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getDisplayName: function () {
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var displayName = '';
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this.collection.each(
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function (model) {
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if (model.get('field_name') === 'display_name') {
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var displayNameValue = model.get('value');
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// It is possible that there is no display name value set. In that case, return empty string.
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displayName = displayNameValue ? displayNameValue : '';
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}
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}
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);
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return displayName;
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}
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});
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Metadata.String = AbstractEditor.extend({
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events : {
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"change input" : "updateModel",
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"keypress .setting-input" : "showClearButton" ,
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"click .setting-clear" : "clear"
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},
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templateName: "metadata-string-entry",
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getValueFromEditor : function () {
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return this.$el.find('#' + this.uniqueId).val();
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},
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setValueInEditor : function (value) {
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this.$el.find('input').val(value);
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}
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});
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Metadata.Number = AbstractEditor.extend({
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events : {
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"change input" : "updateModel",
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"keypress .setting-input" : "keyPressed",
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"change .setting-input" : "changed",
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"click .setting-clear" : "clear"
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},
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render: function () {
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AbstractEditor.prototype.render.apply(this);
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if (!this.initialized) {
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var numToString = function (val) {
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return val.toFixed(4);
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};
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var min = "min";
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var max = "max";
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var step = "step";
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var options = this.model.getOptions();
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if (options.hasOwnProperty(min)) {
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this.min = Number(options[min]);
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this.$el.find('input').attr(min, numToString(this.min));
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}
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if (options.hasOwnProperty(max)) {
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this.max = Number(options[max]);
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this.$el.find('input').attr(max, numToString(this.max));
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}
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var stepValue = undefined;
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if (options.hasOwnProperty(step)) {
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// Parse step and convert to String. Polyfill doesn't like float values like ".1" (expects "0.1").
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stepValue = numToString(Number(options[step]));
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}
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else if (this.isIntegerField()) {
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stepValue = "1";
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}
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if (stepValue !== undefined) {
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this.$el.find('input').attr(step, stepValue);
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}
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// Manually runs polyfill for input number types to correct for Firefox non-support.
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// inputNumber will be undefined when unit test is running.
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if ($.fn.inputNumber) {
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this.$el.find('.setting-input-number').inputNumber();
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}
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this.initialized = true;
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}
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return this;
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},
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templateName: "metadata-number-entry",
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getValueFromEditor : function () {
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return this.$el.find('#' + this.uniqueId).val();
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},
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setValueInEditor : function (value) {
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this.$el.find('input').val(value);
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},
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/**
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* Returns true if this view is restricted to integers, as opposed to floating points values.
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*/
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isIntegerField : function () {
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return this.model.getType() === 'Integer';
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},
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keyPressed: function (e) {
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this.showClearButton();
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// This first filtering if statement is take from polyfill to prevent
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// non-numeric input (for browsers that don't use polyfill because they DO have a number input type).
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var _ref, _ref1;
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if (((_ref = e.keyCode) !== 8 && _ref !== 9 && _ref !== 35 && _ref !== 36 && _ref !== 37 && _ref !== 39) &&
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((_ref1 = e.which) !== 45 && _ref1 !== 46 && _ref1 !== 48 && _ref1 !== 49 && _ref1 !== 50 && _ref1 !== 51
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&& _ref1 !== 52 && _ref1 !== 53 && _ref1 !== 54 && _ref1 !== 55 && _ref1 !== 56 && _ref1 !== 57)) {
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e.preventDefault();
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}
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// For integers, prevent decimal points.
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if (this.isIntegerField() && e.keyCode === 46) {
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e.preventDefault();
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}
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},
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changed: function () {
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// Limit value to the range specified by min and max (necessary for browsers that aren't using polyfill).
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var value = this.getValueFromEditor();
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if ((this.max !== undefined) && value > this.max) {
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value = this.max;
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} else if ((this.min != undefined) && value < this.min) {
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value = this.min;
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}
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this.setValueInEditor(value);
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this.updateModel();
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}
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});
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Metadata.Option = AbstractEditor.extend({
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events : {
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"change select" : "updateModel",
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"click .setting-clear" : "clear"
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},
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templateName: "metadata-option-entry",
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getValueFromEditor : function () {
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var selectedText = this.$el.find('#' + this.uniqueId).find(":selected").text();
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var selectedValue;
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_.each(this.model.getOptions(), function (modelValue) {
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if (modelValue === selectedText) {
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selectedValue = modelValue;
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}
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else if (modelValue['display_name'] === selectedText) {
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selectedValue = modelValue['value'];
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}
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});
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return selectedValue;
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},
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setValueInEditor : function (value) {
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// Value here is the json value as used by the field. The choice may instead be showing display names.
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// Find the display name matching the value passed in.
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_.each(this.model.getOptions(), function (modelValue) {
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if (modelValue['value'] === value) {
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value = modelValue['display_name'];
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}
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});
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this.$el.find('#' + this.uniqueId + " option").filter(function() {
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return $(this).text() === value;
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}).prop('selected', true);
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}
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});
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Metadata.List = AbstractEditor.extend({
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events : {
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"click .setting-clear" : "clear",
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"keypress .setting-input" : "showClearButton",
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"change input" : "updateModel",
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"input input" : "enableAdd",
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"click .create-setting" : "addEntry",
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"click .remove-setting" : "removeEntry"
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},
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templateName: "metadata-list-entry",
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getValueFromEditor: function () {
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return _.map(
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this.$el.find('li input'),
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function (ele) { return ele.value.trim(); }
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).filter(_.identity);
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},
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setValueInEditor: function (value) {
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var list = this.$el.find('ol');
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list.empty();
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_.each(value, function(ele, index) {
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var template = _.template(
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'<li class="list-settings-item">' +
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'<input type="text" class="input" value="<%= ele %>">' +
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'<a href="#" class="remove-action remove-setting" data-index="<%= index %>"><i class="icon-remove-sign"></i><span class="sr">Remove</span></a>' +
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'</li>'
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);
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list.append($(template({'ele': ele, 'index': index})));
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});
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},
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addEntry: function(event) {
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event.preventDefault();
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// We don't call updateModel here since it's bound to the
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// change event
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var list = this.model.get('value') || [];
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this.setValueInEditor(list.concat(['']));
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this.$el.find('.create-setting').addClass('is-disabled');
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},
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removeEntry: function(event) {
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event.preventDefault();
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var entry = $(event.currentTarget).siblings().val();
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this.setValueInEditor(_.without(this.model.get('value'), entry));
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this.updateModel();
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this.$el.find('.create-setting').removeClass('is-disabled');
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},
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enableAdd: function() {
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this.$el.find('.create-setting').removeClass('is-disabled');
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}
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});
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Metadata.RelativeTime = AbstractEditor.extend({
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events : {
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"change input" : "updateModel",
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"keypress .setting-input" : "showClearButton" ,
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"click .setting-clear" : "clear"
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},
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templateName: "metadata-string-entry",
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initialize: function () {
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AbstractEditor.prototype.initialize.apply(this);
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// This list of definitions is used for creating appropriate
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// time format mask;
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//
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// For example, mask 'hH:mM:sS':
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// min value: 00:00:00
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// max value: 23:59:59
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//
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// With this mask user cannot set following values:
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// 93:23:23, 23:60:60, 77:77:77, etc.
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var definitions = {
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h: '[0-2]',
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H: '[0-3]',
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m: '[0-5]',
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s: '[0-5]',
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M: '[0-9]',
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S: '[0-9]'
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};
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$.each(definitions, function(key, value) {
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$.mask.definitions[key] = value;
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});
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this.$el
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.find('#' + this.uniqueId)
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.mask('hH:mM:sS', { placeholder: '0' });
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},
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getValueFromEditor : function () {
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var $input = this.$el.find('#' + this.uniqueId),
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value = $input.val();
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return value;
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},
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setValueInEditor : function (value) {
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if (!value) {
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value = '00:00:00';
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}
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this.$el.find('input').val(value);
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}
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});
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return Metadata;
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});
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