TODO: Expose a GUI setting for this.pull/104/head
JeremyRand
8 years ago
parent
61be709a97
commit
d37df75afa
@ -0,0 +1,139 @@
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var itemCount = 0;
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var highestRanking = Infinity;
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var displayPage = function() {
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// For every search item that has already been displayed...
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$("#resultscontainer .searchresults").each( function(i) {
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// Apply the "earlierpage" class IFF the item is from an earlier page.
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$(this).toggleClass("earlierpage", parseFloat($(this).data("ranking")) > highestRanking);
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});
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// For every search item from an earlier page...
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$("#resultscontainer .searchresults.earlierpage").each( function(i) {
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// Hide the item
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$(this).removeClass("currentpage");
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$(this).hide(1000);
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});
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// For every search item from a current or later page...
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$("#resultscontainer .searchresults:not(.earlierpage)").each( function(i) {
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// If we now have too many results, hide the lowest-ranking ones.
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if (i >= requestedResults) {
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$(this).removeClass("currentpage");
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$(this).hide(1000);
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}
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else {
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$(this).addClass("currentpage");
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$(this).show(1000);
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}
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});
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$("#offset").html($("#resultscontainer .searchresults.earlierpage").length + 1);
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$("#itemscount").html($("#resultscontainer .searchresults.earlierpage").length + $("#resultscontainer .searchresults.currentpage").length);
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console.log("Showing results " + ($("#resultscontainer .searchresults.earlierpage").length + 1) + " - " + ($("#resultscontainer .searchresults.earlierpage").length + requestedResults) + " out of " + $("#resultscontainer .searchresults").length + "; notEarlierPage = " + $("#resultscontainer .searchresults:not(.earlierpage)").length);
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};
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var earlierPage = function() {
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// Find all items that are on an earlier page.
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var allEarlierItems = $("#resultscontainer .searchresults.earlierpage");
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// If going back one page would put us at the beginning...
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if (allEarlierItems.length <= requestedResults) {
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highestRanking = Infinity;
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}
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// If going back one page would still be in the middle of the results...
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else {
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var earlierItem = allEarlierItems.get().reverse()[ requestedResults - 1 ];
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highestRanking = parseFloat($(earlierItem).data("ranking"));
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console.log("highestRanking is now " + highestRanking);
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}
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// Update the display to show the new page.
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displayPage();
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};
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var laterPage = function() {
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// Find all items that are on a later page.
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var allCurrentAndLaterItems = $("#resultscontainer .searchresults:not(.earlierpage)");
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// If going forward one page would put us past the end...
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if (allCurrentAndLaterItems.length <= requestedResults) {
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return;
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}
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// If going forward one page would still be in the middle of the results...
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else {
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var laterItem = allCurrentAndLaterItems.get(requestedResults);
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highestRanking = parseFloat($(laterItem).data("ranking"));
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console.log("highestRanking is now " + highestRanking);
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}
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// Update the display to show the new page.
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displayPage();
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};
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var processItem = function(data) {
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var newItem = $(data).hide();
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// If we didn't get a valid response from YaCy, wait 1 second and try again.
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if( ! newItem.data("ranking") ) {
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//console.log("Got undefined item, waiting 1 second...");
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setTimeout(function() {
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$.get(
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"yacysearchitem.html",
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{
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eventID: theEventID,
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item: itemCount
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},
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processItem
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);
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}, 1000);
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return;
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}
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// For every search item that has already been displayed...
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$("#resultscontainer .searchresults").each( function(i) {
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// If the existing search item is lower-ranked than the new item...
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if (parseFloat($(this).data("ranking")) <= parseFloat(newItem.data("ranking")) ) {
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// Insert new item before the existing item
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newItem.insertBefore(this);
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return false;
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}
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// If the new item is lower-ranked than all existing items...
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else if (i == $("#resultscontainer .searchresults").length - 1) {
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// And if the new item (position i + 1) would be ranked 0 to requestedResults - 1...
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if (i + 1 < requestedResults) {
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// Insert new item at the end
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newItem.appendTo("#resultscontainer");
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return false;
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}
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// If the new item is too irrelevant to be displayed...
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else {
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// Insert new item at the end
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newItem.appendTo("#resultscontainer");
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console.log("Hiding search result because ranking " + newItem.data("ranking") + " too low.");
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return false;
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}
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}
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});
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// Special case if this is the first search item...
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if ($("#resultscontainer .searchresults").length === 0) {
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// Display the new item
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newItem.appendTo("#resultscontainer");
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}
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displayPage();
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// Increment itemCount and get another item.
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itemCount++;
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$.get(
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"yacysearchitem.html",
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{
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eventID: theEventID,
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item: itemCount
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},
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processItem
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);
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};
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