autocomplete lib

oshipka/persistance/__init__.py

@@ -5,15 +5,18 @@ import re
 from json import JSONEncoder
 from uuid import uuid4
 
-from config import SQLALCHEMY_DATABASE_URI, MAKEDIRS, DATABASE_FILE
+from config import SQLALCHEMY_DATABASE_URI, MAKEDIRS, DATABASE_FILE, SEARCH_INDEX_PATH
 from flask_security import RoleMixin, UserMixin
 from flask_security import Security, SQLAlchemyUserDatastore
 from flask_sqlalchemy import SQLAlchemy
 from markupsafe import escape, Markup
+from sqlalchemy import Boolean
+from sqlalchemy import TypeDecorator
 from sqlalchemy.ext.declarative import declared_attr, DeclarativeMeta
 from sqlalchemy.orm.collections import InstrumentedList
 from sqlalchemy_utils import Choice
 from tww.lib import solve_query, resolve_timezone, dt_tz_translation, time_ago
+from whooshalchemy import IndexService
 
 db = SQLAlchemy()
 
@@ -40,6 +43,15 @@ class ModelJsonEncoder(JSONEncoder):
         return o.id
 
 
+class LiberalBoolean(TypeDecorator):
+    impl = Boolean
+
+    def process_bind_param(self, value, dialect):
+        if value is not None:
+            value = bool(int(value))
+        return value
+
+
 def camel_case_to_snake_case(name):
     """
     Convertes a CamelCase name to snake_case
@@ -203,9 +215,19 @@ def register_filters(app):
         return time_ago(None, diff)
 
 
+class Proxy(object):
+    def __init__(self, proxied):
+        self.proxied = proxied
+
+
+index_service = Proxy(None)
+
+
 def init_db(app):
+    rv = False
     app.config["SQLALCHEMY_DATABASE_URI"] = SQLALCHEMY_DATABASE_URI
     app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False
+    app.config["WHOOSH_BASE"] = SEARCH_INDEX_PATH
 
     from oshipka.webapp import test_bp, oshipka_bp
     app.register_blueprint(test_bp)
@@ -221,4 +243,7 @@ def init_db(app):
     if not os.path.exists(DATABASE_FILE):
         with app.app_context():
             db.create_all()
-            return True
+            rv = True
+    global index_service
+    index_service.proxied = IndexService(config=app.config, session=db.session)
+    return rv

oshipka/webapp/static/css/autocomplete.css

@@ -0,0 +1,37 @@
+.autocomplete-suggestions {
+    text-align: left;
+    cursor: default;
+    border: 1px solid #ccc;
+    border-top: 0;
+    background: #fff;
+    box-shadow: -1px 1px 3px rgba(0, 0, 0, .1);
+
+    /* core styles should not be changed */
+    position: absolute;
+    display: none;
+    z-index: 9999;
+    max-height: 254px;
+    overflow: hidden;
+    overflow-y: auto;
+    box-sizing: border-box;
+}
+
+.autocomplete-suggestion {
+    position: relative;
+    padding: 0 .6em;
+    line-height: 23px;
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    font-size: 1.02em;
+    color: #333;
+}
+
+.autocomplete-suggestion b {
+    font-weight: normal;
+    color: #1f8dd6;
+}
+
+.autocomplete-suggestion.selected {
+    background: #f0f0f0;
+}

oshipka/webapp/static/js/autocomplete.js

@@ -0,0 +1,222 @@
+/*
+    JavaScript autoComplete v1.0.4
+    Copyright (c) 2014 Simon Steinberger / Pixabay
+    GitHub: https://github.com/Pixabay/JavaScript-autoComplete
+    License: http://www.opensource.org/licenses/mit-license.php
+*/
+
+var autoComplete = (function(){
+    // "use strict";
+    function autoComplete(options){
+        if (!document.querySelector) return;
+
+        // helpers
+        function hasClass(el, className){ return el.classList ? el.classList.contains(className) : new RegExp('\\b'+ className+'\\b').test(el.className); }
+
+        function addEvent(el, type, handler){
+            if (el.attachEvent) el.attachEvent('on'+type, handler); else el.addEventListener(type, handler);
+        }
+        function removeEvent(el, type, handler){
+            // if (el.removeEventListener) not working in IE11
+            if (el.detachEvent) el.detachEvent('on'+type, handler); else el.removeEventListener(type, handler);
+        }
+        function live(elClass, event, cb, context){
+            addEvent(context || document, event, function(e){
+                var found, el = e.target || e.srcElement;
+                while (el && !(found = hasClass(el, elClass))) el = el.parentElement;
+                if (found) cb.call(el, e);
+            });
+        }
+
+        var o = {
+            selector: 0,
+            source: 0,
+            minChars: 3,
+            delay: 150,
+            offsetLeft: 0,
+            offsetTop: 1,
+            cache: 1,
+            menuClass: '',
+            renderItem: function (item, search){
+                // escape special characters
+                search = search.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
+                var re = new RegExp("(" + search.split(' ').join('|') + ")", "gi");
+                return '<div class="autocomplete-suggestion" data-val="' + item + '">' + item.replace(re, "<b>$1</b>") + '</div>';
+            },
+            onSelect: function(e, term, item){}
+        };
+        for (var k in options) { if (options.hasOwnProperty(k)) o[k] = options[k]; }
+
+        // init
+        var elems = typeof o.selector == 'object' ? [o.selector] : document.querySelectorAll(o.selector);
+        for (var i=0; i<elems.length; i++) {
+            var that = elems[i];
+
+            // create suggestions container "sc"
+            that.sc = document.createElement('div');
+            that.sc.className = 'autocomplete-suggestions '+o.menuClass;
+
+            that.autocompleteAttr = that.getAttribute('autocomplete');
+            that.setAttribute('autocomplete', 'off');
+            that.cache = {};
+            that.last_val = '';
+
+            that.updateSC = function(resize, next){
+                var rect = that.getBoundingClientRect();
+                that.sc.style.left = Math.round(rect.left + (window.pageXOffset || document.documentElement.scrollLeft) + o.offsetLeft) + 'px';
+                that.sc.style.top = Math.round(rect.bottom + (window.pageYOffset || document.documentElement.scrollTop) + o.offsetTop) + 'px';
+                that.sc.style.width = Math.round(rect.right - rect.left) + 'px'; // outerWidth
+                if (!resize) {
+                    that.sc.style.display = 'block';
+                    if (!that.sc.maxHeight) { that.sc.maxHeight = parseInt((window.getComputedStyle ? getComputedStyle(that.sc, null) : that.sc.currentStyle).maxHeight); }
+                    if (!that.sc.suggestionHeight) that.sc.suggestionHeight = that.sc.querySelector('.autocomplete-suggestion').offsetHeight;
+                    if (that.sc.suggestionHeight)
+                        if (!next) that.sc.scrollTop = 0;
+                        else {
+                            var scrTop = that.sc.scrollTop, selTop = next.getBoundingClientRect().top - that.sc.getBoundingClientRect().top;
+                            if (selTop + that.sc.suggestionHeight - that.sc.maxHeight > 0)
+                                that.sc.scrollTop = selTop + that.sc.suggestionHeight + scrTop - that.sc.maxHeight;
+                            else if (selTop < 0)
+                                that.sc.scrollTop = selTop + scrTop;
+                        }
+                }
+            }
+            addEvent(window, 'resize', that.updateSC);
+            document.body.appendChild(that.sc);
+
+            live('autocomplete-suggestion', 'mouseleave', function(e){
+                var sel = that.sc.querySelector('.autocomplete-suggestion.selected');
+                if (sel) setTimeout(function(){ sel.className = sel.className.replace('selected', ''); }, 20);
+            }, that.sc);
+
+            live('autocomplete-suggestion', 'mouseover', function(e){
+                var sel = that.sc.querySelector('.autocomplete-suggestion.selected');
+                if (sel) sel.className = sel.className.replace('selected', '');
+                this.className += ' selected';
+            }, that.sc);
+
+            live('autocomplete-suggestion', 'mousedown', function(e){
+                if (hasClass(this, 'autocomplete-suggestion')) { // else outside click
+                    var v = this.getAttribute('data-val');
+                    that.value = v;
+                    o.onSelect(e, v, this);
+                    that.sc.style.display = 'none';
+                }
+            }, that.sc);
+
+            that.blurHandler = function(){
+                try { var over_sb = document.querySelector('.autocomplete-suggestions:hover'); } catch(e){ var over_sb = 0; }
+                if (!over_sb) {
+                    that.last_val = that.value;
+                    that.sc.style.display = 'none';
+                    setTimeout(function(){ that.sc.style.display = 'none'; }, 350); // hide suggestions on fast input
+                } else if (that !== document.activeElement) setTimeout(function(){ that.focus(); }, 20);
+            };
+            addEvent(that, 'blur', that.blurHandler);
+
+            var suggest = function(data){
+                var val = that.value;
+                that.cache[val] = data;
+                if (data.length && val.length >= o.minChars) {
+                    var s = '';
+                    for (var i=0;i<data.length;i++) s += o.renderItem(data[i], val);
+                    that.sc.innerHTML = s;
+                    that.updateSC(0);
+                }
+                else
+                    that.sc.style.display = 'none';
+            }
+
+            that.keydownHandler = function(e){
+                var key = window.event ? e.keyCode : e.which;
+                // down (40), up (38)
+                if ((key == 40 || key == 38) && that.sc.innerHTML) {
+                    var next, sel = that.sc.querySelector('.autocomplete-suggestion.selected');
+                    if (!sel) {
+                        next = (key == 40) ? that.sc.querySelector('.autocomplete-suggestion') : that.sc.childNodes[that.sc.childNodes.length - 1]; // first : last
+                        next.className += ' selected';
+                        that.value = next.getAttribute('data-val');
+                    } else {
+                        next = (key == 40) ? sel.nextSibling : sel.previousSibling;
+                        if (next) {
+                            sel.className = sel.className.replace('selected', '');
+                            next.className += ' selected';
+                            that.value = next.getAttribute('data-val');
+                        }
+                        else { sel.className = sel.className.replace('selected', ''); that.value = that.last_val; next = 0; }
+                    }
+                    that.updateSC(0, next);
+                    return false;
+                }
+                // esc
+                else if (key == 27) { that.value = that.last_val; that.sc.style.display = 'none'; }
+                // enter
+                else if (key == 13 || key == 9) {
+                    var sel = that.sc.querySelector('.autocomplete-suggestion.selected');
+                    if (sel && that.sc.style.display != 'none') { o.onSelect(e, sel.getAttribute('data-val'), sel); setTimeout(function(){ that.sc.style.display = 'none'; }, 20); }
+                }
+            };
+            addEvent(that, 'keydown', that.keydownHandler);
+
+            that.keyupHandler = function(e){
+                var key = window.event ? e.keyCode : e.which;
+                if (!key || (key < 35 || key > 40) && key != 13 && key != 27) {
+                    var val = that.value;
+                    if (val.length >= o.minChars) {
+                        if (val != that.last_val) {
+                            that.last_val = val;
+                            clearTimeout(that.timer);
+                            if (o.cache) {
+                                if (val in that.cache) { suggest(that.cache[val]); return; }
+                                // no requests if previous suggestions were empty
+                                for (var i=1; i<val.length-o.minChars; i++) {
+                                    var part = val.slice(0, val.length-i);
+                                    if (part in that.cache && !that.cache[part].length) { suggest([]); return; }
+                                }
+                            }
+                            that.timer = setTimeout(function(){ o.source(val, suggest) }, o.delay);
+                        }
+                    } else {
+                        that.last_val = val;
+                        that.sc.style.display = 'none';
+                    }
+                }
+            };
+            addEvent(that, 'keyup', that.keyupHandler);
+
+            that.focusHandler = function(e){
+                that.last_val = '\n';
+                that.keyupHandler(e)
+            };
+            if (!o.minChars) addEvent(that, 'focus', that.focusHandler);
+        }
+
+        // public destroy method
+        this.destroy = function(){
+            for (var i=0; i<elems.length; i++) {
+                var that = elems[i];
+                removeEvent(window, 'resize', that.updateSC);
+                removeEvent(that, 'blur', that.blurHandler);
+                removeEvent(that, 'focus', that.focusHandler);
+                removeEvent(that, 'keydown', that.keydownHandler);
+                removeEvent(that, 'keyup', that.keyupHandler);
+                if (that.autocompleteAttr)
+                    that.setAttribute('autocomplete', that.autocompleteAttr);
+                else
+                    that.removeAttribute('autocomplete');
+                document.body.removeChild(that.sc);
+                that = null;
+            }
+        };
+    }
+    return autoComplete;
+})();
+
+(function(){
+    if (typeof define === 'function' && define.amd)
+        define('autoComplete', function () { return autoComplete; });
+    else if (typeof module !== 'undefined' && module.exports)
+        module.exports = autoComplete;
+    else
+        window.autoComplete = autoComplete;
+})();