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351 lines
12 KiB
351 lines
12 KiB
/*
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* Copyright (C) 2006 - 2014 Martin Thelian, Alexander Schier, Michael Hamann,
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* Michael Peter Christen, Franz Brausse, fuchsi
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*
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* This file is part of YaCy.
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*
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* YaCy is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* YaCy is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with YaCy. If not, see <http://www.gnu.org/licenses/>.
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*/
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function addHover() {
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if (document.all&&document.getElementById) {
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var divs = document.getElementsByTagName("div");
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for (i=0; i<divs.length; i++) {
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var node = divs[i];
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if (node.className=="searchresults") {
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node.onmouseover=function() {
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this.className+=" hover";
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}
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node.onmouseout=function() {
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this.className=this.className.replace(" hover", "");
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}
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}
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}
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}
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}
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function fadeOutBar() {
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document.getElementById("progressbar").setAttribute('style',"transition:transform 0s;-webkit-transition:-webkit-transform 0s;backgroundColor:transparent;");
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/* Also ensure the accessibility property for progress current value is set to 100% */
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document.getElementById("progressbar").setAttribute("aria-valuenow", 100);
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}
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/**
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* @param buttonsList the DOM list element containing the pagination buttons
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* @param offset item number to start with
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* @param itemsperpage count of items requested per page
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* @param totalcount count of items available from YaCy node for this query
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* @param navurlbase the search url without pagination parameters
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* @param localQuery when true the search query is limited to the YaCy peer local data
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* @param jsResort when true results resorting with JavaScript is enabled
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*/
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function renderPaginationButtons(buttonsList, offset, itemsperpage, totalcount,
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navurlbase, localQuery, jsResort) {
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var buttons = buttonsList.getElementsByTagName("li");
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if (buttons.length < 2) {
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/* At least prev and next page buttons are expected to be here */
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return;
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}
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var thispage = Math.floor(offset / itemsperpage);
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var firstPage = thispage - (thispage % 10);
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var prevPageElement = buttons[0];
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var links = prevPageElement.getElementsByTagName("a");
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var prevPageLink = links.length == 1 ? links[0] : null;
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if (thispage == 0) {
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/* First page : the prev page button is disabled */
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prevPageElement.className = "disabled";
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if (prevPageLink != null) {
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prevPageLink.accessKey = null;
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prevPageLink.href = "#";
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}
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} else {
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prevPageElement.className = "";
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if (prevPageLink != null) {
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prevPageLink.accessKey = "p";
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if (jsResort) {
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prevPageLink.href = "javascript:numberedPage(" + (thispage - 1)
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+ ");";
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} else {
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prevPageLink.href = (navurlbase + "&startRecord=" + ((thispage - 1) * itemsperpage));
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}
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}
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}
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var totalPagesNb = Math.floor(1 + ((totalcount - 1) / itemsperpage));
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var numberofpages = Math.min(10, totalPagesNb - firstPage);
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if (!numberofpages) {
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numberofpages = 10;
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}
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if(totalPagesNb > 1 && numberofpages >= 1) {
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buttonsList.className = "pagination";
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} else {
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/* Hide the pagination buttons when there is less than one page of results */
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buttonsList.className = "pagination hidden";
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}
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var btnIndex = 1;
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var btnElement, pageLink;
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/* Update existing buttons or add new ones according to the new pagination */
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for (var i = firstPage; i < (firstPage + numberofpages); i++) {
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if (btnIndex < (buttons.length - 1)) {
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btnElement = buttons[btnIndex];
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pageLink = btnElement.firstChild;
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} else {
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btnElement = document.createElement("li");
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btnElement.id = "pageBtn" + btnIndex;
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pageLink = document.createElement("a");
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btnElement.appendChild(pageLink);
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}
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if (pageLink != null) {
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if (i == thispage) {
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btnElement.className = "active";
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pageLink.href = "#";
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} else {
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btnElement.className = "";
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if (jsResort) {
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pageLink.href = "javascript:numberedPage(" + (i) + ");";
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} else {
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pageLink.href = navurlbase + "&startRecord=" + (i * itemsperpage);
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}
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}
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pageLink.innerText = (i + 1);
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}
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if (btnIndex >= (buttons.length - 1)) {
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/*
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* Insert the newly created button now that all its modifications
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* are done
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*/
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buttonsList.insertBefore(btnElement, buttons[buttons.length - 1]);
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}
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btnIndex++;
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}
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/* Remove existing buttons now in excess */
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while (btnIndex < (buttons.length - 1)) {
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buttonsList.removeChild(buttons[buttons.length - 2]);
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}
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var nextPageElement = buttons[buttons.length - 1];
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links = nextPageElement.getElementsByTagName("a");
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var nextPageLink = links.length == 1 ? links[0] : null;
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if ((localQuery && thispage >= (totalPagesNb - 1))
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|| (!localQuery && thispage >= (numberofpages - 1))) {
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/* Last page on a local query, or last fetchable page in p2p mode : the next page button is disabled */
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nextPageElement.className = "disabled";
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if (nextPageLink != null) {
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nextPageLink.accessKey = null;
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nextPageLink.href = "#";
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}
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} else {
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nextPageElement.className = "";
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if (nextPageLink != null) {
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nextPageLink.accessKey = "n";
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if (jsResort) {
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nextPageLink.href = "javascript:numberedPage(" + (thispage + 1)
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+ ");";
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} else {
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nextPageLink.href = navurlbase + "&startRecord="
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+ ((thispage + 1) * itemsperpage);
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}
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}
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}
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}
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/**
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* Parses a string representing an integer value
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*
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* @param strIntValue
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* formatted string
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* @returns the number value or undefined when the string is undefined, or NaN
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* when the string is not a number
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*/
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function parseFormattedInt(strIntValue) {
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var inValue;
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if(strIntValue != null && strIntValue.replace != null) {
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/* Remove thousands separator and try to parse as integer */
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intValue = parseInt(strIntValue.replace(/[\.\,]/g,''))
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}
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return intValue;
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}
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function statistics(offset, itemscount, itemsperpage, totalcount, localIndexCount, remoteIndexCount, remotePeerCount, navurlbase, localQuery, feedRunning, jsResort, updatePagination) {
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var totalcountIntValue = parseFormattedInt(totalcount);
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var offsetIntValue = parseFormattedInt(offset);
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var itemscountIntValue = parseFormattedInt(itemscount);
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var itemsperpageIntValue = parseFormattedInt(itemsperpage);
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var feedingStatusElement = document.getElementById("feedingStatus");
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if(feedingStatusElement != null) {
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if(feedRunning) {
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feedingStatusElement.style.visibility = "visible";
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} else {
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feedingStatusElement.style.visibility = "hidden";
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}
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}
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/* Display the eventual button allowing to refresh the sort of cached results
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* only when all feeds are terminated and when there is more than one result */
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var resortCachedElement = document.getElementById("resortCached");
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if(resortCachedElement != null) {
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if(feedRunning) {
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resortCachedElement.style.visibility = "hidden";
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} else if(totalcountIntValue > 1){
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resortCachedElement.style.visibility = "visible";
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}
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}
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if (totalcountIntValue == 0) {
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return;
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}
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var elementToUpdate = document.getElementById("offset");
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if (offsetIntValue >= 0 && elementToUpdate != null) {
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elementToUpdate.innerHTML = offset;
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}
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elementToUpdate = document.getElementById("startRecord");
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if (offsetIntValue >= 0 && elementToUpdate != null) {
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elementToUpdate.setAttribute('value', offsetIntValue - 1);
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}
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elementToUpdate = document.getElementById("itemscount");
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if (itemscountIntValue >= 0 && elementToUpdate != null) {
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elementToUpdate.firstChild.nodeValue = itemscount;
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}
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elementToUpdate = document.getElementById("totalcount");
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if(elementToUpdate != null) {
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elementToUpdate.firstChild.nodeValue = totalcount;
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}
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elementToUpdate = document.getElementById("localIndexCount");
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if (elementToUpdate != null) {
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elementToUpdate.firstChild.nodeValue = localIndexCount;
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}
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elementToUpdate = document.getElementById("remoteIndexCount");
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if (elementToUpdate != null) {
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elementToUpdate.firstChild.nodeValue = remoteIndexCount;
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}
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elementToUpdate = document.getElementById("remotePeerCount");
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if (elementToUpdate != null) {
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elementToUpdate.firstChild.nodeValue = remotePeerCount;
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}
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// compose page navigation
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var progresseBarElement = document.getElementById("progressbar");
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if (progresseBarElement.getAttribute('class') != "progress-bar progress-bar-success") {
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var percent = 100 * (itemscountIntValue - offsetIntValue + 1) / itemsperpageIntValue;
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if (percent == 100) {
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progresseBarElement.setAttribute('style',"transition:transform 0s;-webkit-transition:-webkit-transform 0s;");
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progresseBarElement.setAttribute('class',"progress-bar progress-bar-success");
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window.setTimeout(fadeOutBar, 500);
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} else {
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progresseBarElement.setAttribute('aria-valuenow', percent);
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}
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progresseBarElement.setAttribute('style',"width:" + percent + "%");
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}
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var buttonsList = document.getElementById("paginationButtons");
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if (buttonsList != null && !jsResort && updatePagination) {
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renderPaginationButtons(buttonsList, offsetIntValue, itemsperpageIntValue, totalcountIntValue, navurlbase, localQuery, jsResort);
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}
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}
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/**
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* Toggle visibility on a block of tags (keywords) beyond the initial limit of tags to display.
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* @param {HTMLButtonElement} button the button used to expand the tags
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* @param {String} moreTagsId the id of the container of tags which visibility has to be toggled
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*/
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function toggleMoreTags(button, moreTagsId) {
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var moreTagsContainer = document.getElementById(moreTagsId);
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if(button != null && moreTagsContainer != null) {
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if(button.getAttribute("aria-expanded") == "true") {
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/* Additionnaly we modify the aria-expanded state for improved accessiblity */
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button.setAttribute("aria-expanded", "false");
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button.title = "Show all";
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moreTagsContainer.className = "hidden";
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} else {
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/* Additionnaly we modify the aria-expanded state for improved accessiblity */
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button.setAttribute("aria-expanded", "true");
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button.title = "Show only the first elements";
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moreTagsContainer.className = "";
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}
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}
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}
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/**
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* Handle a rendering error on a result image thumbnail.
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*
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* @param imgElem
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* {HTMLImageElement} the html img element that could not be rendered
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*/
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function handleResultThumbError(imgElem) {
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if (imgElem.parentNode != null && imgElem.parentNode.parentNode != null
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&& imgElem.parentNode.parentNode.className == "thumbcontainer") {
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/* Hide the thumbnail container */
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imgElem.parentNode.parentNode.className = "thumbcontainer thumbError hidden";
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var errorsInfoElem = document.getElementById("imageErrorsInfo");
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if (errorsInfoElem != null && errorsInfoElem.className.indexOf("hidden") >= 0) {
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/* Show the image errors information block */
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errorsInfoElem.className = errorsInfoElem.className.replace("hidden", "");
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}
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var errorsCountElem = document.getElementById("imageErrorsCount");
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if (errorsCountElem != null) {
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/* Increase the count of thumbnails rendering errors */
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errorsCountElem.firstChild.nodeValue = parseInt(errorsCountElem.firstChild.nodeValue) + 1;
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}
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}
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}
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/**
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* Show result thumbnails that were hidden because a rendering error occurred.
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*/
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function showErrThumbnails() {
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var thumbs = document.getElementsByClassName("thumbError hidden");
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var length = thumbs.length;
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for (var i = 0; i < length && thumbs.length > 0; i++) {
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thumbs[0].className = thumbs[0].className.replace("hidden", ""); // after that the element is removed from the thumbs live collection
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}
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var showBtn = document.getElementById("showErrorImagesBtn");
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if(showBtn != null) {
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showBtn.className = showBtn.className + " hidden";
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}
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var hideBtn = document.getElementById("hideErrorImagesBtn");
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if(hideBtn != null) {
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hideBtn.className = hideBtn.className.replace("hidden", "");
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}
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}
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/**
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* Hide result thumbnails that had a rendering error.
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*/
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function hideErrThumbnails() {
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var thumbs = document.getElementsByClassName("thumbError");
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for (var i = 0; i < thumbs.length; i++) {
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if(thumbs[i].className.indexOf("hidden") < 0) {
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thumbs[i].className = thumbs[i].className + " hidden";
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}
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}
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var showBtn = document.getElementById("showErrorImagesBtn");
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if(showBtn != null) {
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showBtn.className = showBtn.className.replace("hidden", "");
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}
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var hideBtn = document.getElementById("hideErrorImagesBtn");
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if(hideBtn != null) {
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hideBtn.className = hideBtn.className + " hidden";
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}
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} |