X-Git-Url: https://vcs.maemo.org/git/?a=blobdiff_plain;f=mardrone%2Fimports%2Fcom%2Fmeego%2FSectionScroller.js;fp=mardrone%2Fimports%2Fcom%2Fmeego%2FSectionScroller.js;h=ecd210e10ffda438ff5f473192484edb22d3cf3e;hb=53abfcee86d03676ae5e3b648d6c7cee69c2f4e1;hp=0000000000000000000000000000000000000000;hpb=f7f1d7c4427cba2c8490f2767259b1d06f66c7ed;p=mardrone diff --git a/mardrone/imports/com/meego/SectionScroller.js b/mardrone/imports/com/meego/SectionScroller.js new file mode 100644 index 0000000..ecd210e --- /dev/null +++ b/mardrone/imports/com/meego/SectionScroller.js @@ -0,0 +1,107 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the Qt Components project. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +var sectionData = []; +var _sections = []; + +function initialize(list) { + initSectionData(list); +} + +function initSectionData(list) { + if (!list || !list.model) return; + sectionData = []; + _sections = []; + var current = "", + prop = list.section.property, + item; + + for (var i = 0, count = list.model.count; i < count; i++) { + item = list.model.get(i); + if (item[prop] !== current) { + current = item[prop]; + _sections.push(current); + sectionData.push({ index: i, header: current }); + } + } +} + +function getSectionPositionString(name) { + var val = _sections.indexOf(name); + return val === 0 ? "first" : + val === _sections.length - 1 ? "last" : false; +} + +function getAt(pos) { + return _sections[pos] ? _sections[pos] : ""; +} + +function getRelativeSections(current) { + var val = _sections.indexOf(current), + sect = [], + sl = _sections.length; + + val = val < 1 ? 1 : val >= sl-1 ? sl-2 : val; + sect = [getAt(val - 1), getAt(val), getAt(val + 1)]; + + return sect; +} + +function getClosestSection(pos, down) { + var tmp = (_sections.length) * pos; + var val = Math.ceil(tmp) // TODO: better algorithm + val = val < 2 ? 1 : val; + return _sections[val-1]; +} + +function getNextSection(current) { + var val = _sections.indexOf(current); + return (val > -1 ? _sections[(val < _sections.length - 1 ? val + 1 : val)] : _sections[0]) || ""; +} + +function getPreviousSection(current) { + var val = _sections.indexOf(current); + return (val > -1 ? _sections[(val > 0 ? val - 1 : val)] : _sections[0]) || ""; +} + +function getIndexFor(sectionName) { + var val = sectionData[_sections.indexOf(sectionName)].index; + return val === 0 || val > 0 ? val : -1; +}