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// guix-web - Web interface for GNU Guix
// Copyright © 2014 David Thompson <davet@gnu.org>
//
// This program is free software: you can redistribute it and/or
// modify it under the terms of the GNU Affero General Public License
// as published by the Free Software Foundation, either version 3 of
// the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public
// License along with this program. If not, see
// <http://www.gnu.org/licenses/>.
var guix = {};
guix.chunk = function(array, size) {
return array.reduce(function(memo, value, i) {
var currentSlice = _(memo).last();
if(i / size < memo.length) {
currentSlice.push(value);
} else {
memo.push([value]);
}
return memo;
}, []);
};
guix.paginate = function(array, pageSize) {
return guix.chunk(array, pageSize);
};
guix.Packages = function() {
return m.request({ method: "GET", url: "packages.json" });
};
guix.controller = function() {
var self = this;
this.packages = guix.Packages();
this.pages = m.prop([]);
this.currentPageIndex = 0;
this.pageSize = 20;
this.searchTerm = m.prop("");
// All packages are visible initially
this.packages.then(function(packages) {
self.pages(guix.paginate(packages, self.pageSize));
});
};
guix.controller.prototype.currentPage = function() {
return this.pages()[this.currentPageIndex] || [];
};
guix.controller.prototype.isFirstPage = function() {
return this.currentPageIndex === 0;
};
guix.controller.prototype.isLastPage = function() {
return this.currentPageIndex === this.pages().length - 1;
};
guix.controller.prototype.isCurrentPage = function(i) {
return this.currentPageIndex === i;
};
guix.controller.prototype.packageCount = function() {
return this.pages().reduce(function(memo, page) {
return memo + page.length;
}, 0);
};
guix.controller.prototype.doSearch = function() {
var regexp = new RegExp(this.searchTerm(), "i");
this.pages(guix.paginate(this.packages().filter(function(package) {
return regexp.test(package.name) ||
regexp.test(package.synopsis);
}), this.pageSize));
};
guix.view = function(ctrl) {
function renderName(package) {
var name = package.name;
return m("a", { href: "/package/".concat(name) }, name);
}
function renderHomepage(package) {
if(package.homepage) {
return m("a", { href: package.homepage }, package.homepage);
} else {
return "";
}
}
function renderLicense(package) {
function licenseLink(license) {
return m("a", { href: license.uri }, license.name);
}
if(_.isArray(package.license)) {
return m("ul.list-inline", package.license.map(function(license) {
return m("li", licenseLink(license));
}));
} else if(package.license) {
return licenseLink(package.license);
} else {
return "";
}
}
function renderPagination() {
function renderPage(text, opts) {
return m("li", {
class: opts.class || "",
onclick: opts.onclick
}, m("a", { href: "#" }, text));
}
return m("ul.pagination", [
// Back page
renderPage("«", {
class: ctrl.isFirstPage() ? "disabled" : "",
onclick: function() {
ctrl.currentPageIndex--;
return false;
}
})
].concat(ctrl.pages().map(function(page, i) {
// Jump to page
return renderPage(i + 1, {
class: ctrl.isCurrentPage(i) ? "active" : "",
onclick: function() {
ctrl.currentPageIndex = i;
return false;
}
});
})).concat([
// Forward page
renderPage("»", {
class: ctrl.isLastPage() ? "disabled" : "",
onclick: function() {
ctrl.currentPageIndex++;
return false;
}
})
]));
}
return [
m("h2", [
"Packages",
m("span.badge", ctrl.packageCount())
]),
m("input.form-control", {
type: "text",
placeholder: "Search",
onchange: m.withAttr("value", function(value) {
ctrl.searchTerm(value);
ctrl.doSearch();
}),
value: ctrl.searchTerm()
}),
m("table.table", [
m("thead", [
m("tr", [
["Name",
"Version",
"Synopsis",
"Home Page",
"License"].map(function(header) {
return m("th", header);
})
])
]),
m("tbody", [
ctrl.currentPage().map(function(package) {
return m("tr", [
m("td", renderName(package)),
m("td", package.version),
m("td", package.synopsis),
m("td", renderHomepage(package)),
m("td", renderLicense(package))
]);
})
])
]),
renderPagination()
];
};
m.module(document.getElementById("guix"), guix);
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