Add filter capability for tags

soundboard.py

@@ -3,7 +3,7 @@ import sys
 import subprocess
 import sqlite3
 
-from flask import Flask, render_template, request, redirect, url_for, send_from_directory, g
+from flask import Flask, render_template, request, redirect, url_for, send_from_directory, g, jsonify
 
 import config
 
@@ -144,3 +144,25 @@ ON tag.id = checked.id""", (sound,))
 @app.route("/sounds/<path:name>")
 def sounds(name):
 	return send_from_directory(config.path, name)
+
+@app.route("/tags/<tags>")
+def tags(tags):
+	# Credits: https://stackoverflow.com/a/38955049/1532986
+	query = """\
+SELECT button.file
+FROM button
+WHERE button.id IN (
+	SELECT button_tags.fk_button
+	FROM button_tags
+	JOIN tag
+		ON tag.id = button_tags.fk_tag
+	GROUP BY button_tags.fk_button
+	HAVING
+"""
+	tagFilter = "\t\tSUM(CASE WHEN tag.name = \"{}\" THEN 1 ELSE 0 END) > 0"
+	tagFilters = " AND \n".join([tagFilter.format(tag) for tag in tags.split(",")])
+	query += tagFilters + "\n)"
+
+	sounds = queryDB(query)
+
+	return jsonify([sound["file"].split(".")[0] for sound in sounds])

static/main.css

@@ -101,8 +101,13 @@ button:active {
 }
 
 .tags li a:hover {
-	background-color: #eee;
-	color: #333;
+	border-color: #eee;
+	color: #eee;
+}
+
+.tagged {
+	background-color: #eee !important;
+	color: #333 !important;
 }
 
 label {

static/main.js

@@ -1,6 +1,7 @@
 /* jshint esversion: 6 */
 
 var localModeEnabled = false;
+var selectedTags = [];
 
 // References to howler objects
 var howlerSounds = [];
@@ -43,7 +44,6 @@ ready(function() {
 	searchfield.focus();
 
 	searchFilter(searchfield, ".sound", "inline-block");
-	searchFilter(searchfield, ".tag", "block");
 
 	var reset = document.querySelector("#reset");
 	var sounds_nav = document.querySelector("#sounds-nav");
@@ -74,6 +74,22 @@ function searchFilter(searchfield, itemSelector, unHideStyle) {
 	}
 }
 
+function tagFilter(sounds) {
+	var items = document.querySelectorAll(".sound");
+
+	items.forEach(function(item) {
+		item.style.display = "inline-block";
+	});
+
+	items.forEach(function(item) {
+		var name = item.firstChild.innerHTML;
+
+		if (sounds.length > 0 && sounds.indexOf(name.toLowerCase()) === -1) {
+			item.style.display = "none";
+		}
+	});
+}
+
 /*
 * Adds all necessary KeyListeners to document
 */
@@ -112,7 +128,42 @@ function addKeyListeners() {
 				source.classList.remove("sound-pressed");
 			}
 		});
-		
+	});
+
+	var tags = document.querySelectorAll(".tags li");
+
+	tags.forEach(function(tag) {
+		tag.addEventListener("click", function(e) {
+			var className = "tagged";
+			var el = this.firstChild;
+
+			var classes = el.className.split(" ");
+			var existingIndex = classes.indexOf(className);
+
+			if (existingIndex >= 0)
+				classes.splice(existingIndex, 1);
+			else
+				classes.push(className);
+
+			el.className = classes.join(" ");
+
+			var i = selectedTags.indexOf(el.innerHTML);
+
+			if (i == -1)
+				selectedTags.push(el.innerHTML);
+			else
+				selectedTags.splice(i, 1);
+
+			console.log(selectedTags);
+
+			if (selectedTags.length > 0) {
+				ajaxRequest("/tags/" + selectedTags.join(), function() {
+					tagFilter(JSON.parse(this.responseText));
+				});
+			} else {
+				tagFilter([]);
+			}
+		});
 	});
 }
 
@@ -145,11 +196,15 @@ function hideSections() {
 	});
 }
 
-function ajaxRequest(url) {
+function ajaxRequest(url, callback) {
 	var ajaxRequest;
 	try {
 		ajaxRequest = new XMLHttpRequest();
 		ajaxRequest.open("GET", url, true);
+
+		if (typeof callback !== 'undefined')
+			ajaxRequest.onload = callback;
+
 		ajaxRequest.send(null);
 	} catch (e) {
 		alert("Unfortunately we were unable to handle your request. Please try again later and contact the server administrator if the problem persists.");