ttrss/qml/ttrss/models/CategoryModel.qml

/*
 * This file is part of TTRss, a Tiny Tiny RSS Reader App
 * for MeeGo Harmattan and Sailfish OS.
 * Copyright (C) 2012–2016  Hauke Schade
 *
 * TTRss is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * TTRss 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with TTRss; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see
 * http://www.gnu.org/licenses/.
 */

//import QtQuick 1.1 // harmattan
import QtQuick 2.0 // sailfish

ListModel {
    id: root

    property int selectedIndex: -1
    signal updateFinished()

    function update() {
        var ttrss = rootWindow.getTTRSS();
        ttrss.updateCategories(function(successful, errorMessage) {
            if (successful) {
                root.load(false)
            }

            // TODO Add a callback to update() which can be used to display
            // errorMessage.
        })
    }

    /** @private */
    function load(woSpecialCategories) {
        var ttrss = rootWindow.getTTRSS()

        var categories
        if (woSpecialCategories) {
            categories = ttrss.getAllCategoriesWoSpecial()
        }
        else {
            categories = ttrss.getCategories()
        }

        root.clear()

        if(categories && categories.length) {
            var totalUnreadCount = 0

            //first add all the categories with unread itens
            for(var category = 0; category < categories.length; category++) {
                if (categories[category].id >= 0) {
                    totalUnreadCount += parseInt(categories[category].unread);
                }

                var title = ttrss.html_entity_decode(categories[category].title,'ENT_QUOTES')

                if (categories[category].id == ttrss.constants['categories']['ALL']) {
                    title = constant.allFeeds
                } else if (categories[category].id == ttrss.constants['categories']['LABELS']) {
                    title = constant.labelsCategory
                } else if (categories[category].id == ttrss.constants['categories']['SPECIAL']) {
                    title = constant.specialCategory
                } else if (categories[category].id == ttrss.constants['categories']['UNCATEGORIZED']) {
                    title = constant.uncategorizedCategory
                }

                root.append({
                                title:       title,
                                name:        title,
                                categoryId:  parseInt(categories[category].id),
                                value:       parseInt(categories[category].id),
                                unreadcount: parseInt(categories[category].unread)
                            });
            }

            if(!woSpecialCategories && (totalUnreadCount > 0 || showAll)) {
                //Add the "All" category
                root.insert(0, {
                                title:       constant.allFeeds,
                                name:        constant.allFeeds,
                                categoryId:  parseInt(ttrss.constants['categories']['ALL']),
                                value:       parseInt(ttrss.constants['categories']['ALL']),
                                unreadcount: totalUnreadCount
                            });
            }
        }
        updateFinished()
    }

    function getAllFeedsCategory() {
        var ttrss = rootWindow.getTTRSS()
        var allfeedsparams = {
            category: {
                categoryId: ttrss.constants['categories']['ALL'],
                title: constant.allFeeds,
                unreadcount: 0
            }
        }
        return allfeedsparams
    }

    function getSpecialCategory() {
        var ttrss = rootWindow.getTTRSS()
        var specialparams = {
            category: {
                categoryId: ttrss.constants['categories']['SPECIAL'],
                title: constant.specialCategory,
                unreadcount: 0
            }
        }
        return specialparams
    }

    function getLabelsCategory() {
        var ttrss = rootWindow.getTTRSS()
        var labelsparams = {
            category: {
                categoryId: ttrss.constants['categories']['LABELS'],
                title: constant.labelsCategory,
                unreadcount: 0
            }
        }
        return labelsparams
    }

    function getAllCategories() {
        root.load(true)
    }

    function getTotalUnreadItems() {
        if (root.count <= 0) {
            return 0
        } else {
            var m = root.get(0)
            return m.unreadcount
        }
    }

    function getSelectedItem() {
        if (root.selectedIndex === -1) {
            return null;
        }

        return root.get(root.selectedIndex)
    }

    function getItemForId(id) {
        for (var index = 0; index < root.count; ++index) {
            var category = root.get(index)
            if (category.categoryId === id) {
                return category
            }
        }
        return null;
    }

    function updateSelectedUnreadCount(op) {
        var m = root.getSelectedItem()
        root.setProperty(root.selectedIndex, "unreadcount", op(m.unreadcount))
    }

    function updateUnreadCountForId(id, op) {
        for(var category = 0; category < root.count; category++) {
            var m = root.get(category)
            if (m.categoryId === id) {
                root.setProperty(category, "unreadcount", op(m.unreadcount))
                break
            }
        }
    }
}