mirror of https://github.com/zulip/zulip.git
127 lines
4.0 KiB
JavaScript
127 lines
4.0 KiB
JavaScript
var components = (function () {
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var exports = {};
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/* USAGE:
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Toggle x = components.toggle({
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name: String toggle_name,
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selected: Integer selected_index,
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values: Array<Object> [
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{ label: i18n.t(String title) }
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],
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callback: function () {
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// .. on value change.
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},
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}).get();
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*/
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exports.toggle = (function () {
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var keys = {};
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var __toggle = function (opts) {
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var component = (function render_component(opts) {
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var _component = $("<div class='tab-switcher'></div>");
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opts.values.forEach(function (value, i) {
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// create a tab with a tab-id so they don't have to be referenced
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// by text value which can be inconsistent.
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var tab = $("<div class='ind-tab' data-tab-key='" + value.key + "' data-tab-id='" + i + "'>" + value.label + "</div>");
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// add proper classes for styling in CSS.
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if (i === 0) {
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// this should be default selected unless otherwise specified.
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tab.addClass("first selected");
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} else if (i === opts.values.length - 1) {
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tab.addClass("last");
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} else {
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tab.addClass("middle");
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}
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_component.append(tab);
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});
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return _component;
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}(opts));
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// store once a copy of the tabs inside the parent in a jQuery object/array.
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var meta = {
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$ind_tab: component.find(".ind-tab"),
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last_value: null,
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};
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(function () {
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meta.$ind_tab.click(function () {
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meta.$ind_tab.removeClass("selected");
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$(this).addClass("selected");
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if (opts.callback) {
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var id = +$(this).data("tab-id");
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if (meta.last_value !== opts.values[id].label) {
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meta.last_value = opts.values[id].label;
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opts.callback(meta.last_value, opts.values[id].key);
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}
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}
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});
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if (typeof opts.selected === "number") {
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$(component).find(".ind-tab[data-tab-id='" + opts.selected + "']").click();
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}
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}());
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var prototype = {
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value: function () {
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// find whatever is visually selected in the tab switcher.
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var sel = component.find(".selected");
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if (sel.length > 0) {
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var id = +sel.eq(0).data("tab-id");
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return opts.values[id].label;
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}
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},
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get: function () {
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return component;
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},
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// go through the process of finding the correct tab for a given name,
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// and when found, select that one and provide the proper callback.
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goto: function (name) {
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var value = _.find(opts.values, function (o) {
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return o.label === name || o.key === name;
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});
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var idx = opts.values.indexOf(value);
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if (idx !== -1 && idx !== meta.last_value) {
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meta.$ind_tab.removeClass("selected");
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meta.$ind_tab.filter("[data-tab-id='" + idx + "']").addClass("selected");
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opts.callback(value.label, value.key);
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meta.last_value = idx;
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}
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},
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};
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if (opts.name) {
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keys[opts.name] = {
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opts: opts,
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component: component,
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value: prototype.value,
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goto: prototype.goto,
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};
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}
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return prototype;
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};
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// look up a toggle globally by the name you set it as and return
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// the prototype.
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__toggle.lookup = function (id) {
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return keys[id];
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};
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return __toggle;
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}());
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return exports;
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}());
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if (typeof module !== 'undefined') {
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module.exports = components;
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}
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