From f8b55ea3e44af8f09412361e33f4c604be9fb397 Mon Sep 17 00:00:00 2001 From: Sawyer Bergeron Date: Mon, 24 Jun 2019 14:30:20 -0400 Subject: Refactor searchable widget Change-Id: I0d342a3f31769fe71059d08653002454851b61cc Signed-off-by: Sawyer Bergeron --- src/static/js/dashboard.js | 302 ++++++++++++++++++ .../dashboard/searchable_select_multiple.html | 350 +++------------------ 2 files changed, 337 insertions(+), 315 deletions(-) (limited to 'src') diff --git a/src/static/js/dashboard.js b/src/static/js/dashboard.js index e51a219..0ed61e8 100644 --- a/src/static/js/dashboard.js +++ b/src/static/js/dashboard.js @@ -830,3 +830,305 @@ class NetworkStep { req.send(formData); } } + +class SearchableSelectMultipleWidget { + constructor(format_vars, field_dataset, field_initial) { + this.format_vars = format_vars; + this.items = field_dataset; + this.initial = field_initial; + + this.expanded_name_trie = {"isComplete": false}; + this.small_name_trie = {"isComplete": false}; + this.string_trie = {"isComplete": false}; + + this.added_items = new Set(); + + for( let e of ["show_from_noentry", "show_x_results", "results_scrollable", "selectable_limit", "placeholder"] ) + { + this[e] = format_vars[e]; + } + + this.search_field_init(); + + if( this.show_from_noentry ) + { + this.search(""); + } + } + + disable() { + const textfield = document.getElementById("user_field"); + const drop = document.getElementById("drop_results"); + + textfield.disabled = "True"; + drop.style.display = "none"; + + const btns = document.getElementsByClassName("btn-remove"); + for( const btn of btns ) + { + btn.classList.add("disabled"); + btn.onclick = ""; + } + } + + search_field_init() { + this.build_all_tries(this.items); + + for( const elem of this.initial ) + { + this.select_item(elem); + } + if(this.initial.length == 1) + { + this.search(this.items[this.initial[0]]["small_name"]); + document.getElementById("user_field").value = this.items[this.initial[0]]["small_name"]; + } + } + + build_all_tries(dict) + { + for( const key in dict ) + { + this.add_item(dict[key]); + } + } + + add_item(item) + { + const id = item['id']; + this.add_to_tree(item['expanded_name'], id, this.expanded_name_trie); + this.add_to_tree(item['small_name'], id, this.small_name_trie); + this.add_to_tree(item['string'], id, this.string_trie); + } + + add_to_tree(str, id, trie) + { + let inner_trie = trie; + while( str ) + { + if( !inner_trie[str.charAt(0)] ) + { + var new_trie = {}; + inner_trie[str.charAt(0)] = new_trie; + } + else + { + var new_trie = inner_trie[str.charAt(0)]; + } + + if( str.length == 1 ) + { + new_trie.isComplete = true; + if( !new_trie.ids ) + { + new_trie.ids = []; + } + new_trie.ids.push(id); + } + inner_trie = new_trie; + str = str.substring(1); + } + } + + search(input) + { + if( input.length == 0 && !this.show_from_noentry){ + this.dropdown([]); + return; + } + else if( input.length == 0 && this.show_from_noentry) + { + this.dropdown(this.items); //show all items + } + else + { + const trees = [] + const tr1 = this.getSubtree(input, this.expanded_name_trie); + trees.push(tr1); + const tr2 = this.getSubtree(input, this.small_name_trie); + trees.push(tr2); + const tr3 = this.getSubtree(input, this.string_trie); + trees.push(tr3); + const results = this.collate(trees); + this.dropdown(results); + } + } + + getSubtree(input, given_trie) + { + /* + recursive function to return the trie accessed at input + */ + + if( input.length == 0 ){ + return given_trie; + } + + else{ + const substr = input.substring(0, input.length - 1); + const last_char = input.charAt(input.length-1); + const subtrie = this.getSubtree(substr, given_trie); + + if( !subtrie ) //substr not in the trie + { + return {}; + } + + const indexed_trie = subtrie[last_char]; + return indexed_trie; + } + } + + serialize(trie) + { + /* + takes in a trie and returns a list of its item id's + */ + let itemIDs = []; + if ( !trie ) + { + return itemIDs; //empty, base case + } + for( const key in trie ) + { + if(key.length > 1) + { + continue; + } + itemIDs = itemIDs.concat(this.serialize(trie[key])); + } + if ( trie.isComplete ) + { + itemIDs.push(...trie.ids); + } + + return itemIDs; + } + + collate(trees) + { + /* + takes a list of tries + returns a list of ids of objects that are available + */ + const results = []; + for( const tree of trees ) + { + const available_IDs = this.serialize(tree); + + for( const itemID of available_IDs ) { + results[itemID] = this.items[itemID]; + } + } + return results; + } + + generate_element_text(obj) + { + const content_strings = [obj.expanded_name, obj.small_name, obj.string].filter(x => Boolean(x)); + const result = content_strings.shift(); + if( result == null || content_strings.length < 1) { + return result; + } else { + return result + " (" + content_strings.join(", ") + ")"; + } + } + + dropdown(ids) + { + /* + takes in a mapping of ids to objects in items + and displays them in the dropdown + */ + const drop = document.getElementById("drop_results"); + while(drop.firstChild) + { + drop.removeChild(drop.firstChild); + } + + for( const id in ids ) + { + const result_entry = document.createElement("li"); + const result_button = document.createElement("a"); + const obj = this.items[id]; + const result_text = this.generate_element_text(obj); + result_button.appendChild(document.createTextNode(result_text)); + result_button.onclick = function() { searchable_select_multiple_widget.select_item(obj.id); }; + const tooltip = document.createElement("span"); + const tooltiptext = document.createTextNode(result_text); + tooltip.appendChild(tooltiptext); + tooltip.setAttribute('class', 'entry_tooltip'); + result_button.appendChild(tooltip); + result_entry.appendChild(result_button); + drop.appendChild(result_entry); + } + + const scroll_restrictor = document.getElementById("scroll_restrictor"); + + if( !drop.firstChild ) + { + scroll_restrictor.style.visibility = 'hidden'; + } + else + { + scroll_restrictor.style.visibility = 'inherit'; + } + } + + select_item(item_id) + { + if( (this.selectable_limit > -1 && this.added_items.size < this.selectable_limit) || this.selectable_limit < 0 ) + { + this.added_items.add(item_id); + } + this.update_selected_list(); + // clear search bar contents + document.getElementById("user_field").value = ""; + document.getElementById("user_field").focus(); + this.search(""); + } + + remove_item(item_id) + { + this.added_items.delete(item_id); + + this.update_selected_list() + document.getElementById("user_field").focus(); + } + + update_selected_list() + { + document.getElementById("added_number").innerText = this.added_items.size; + const selector = document.getElementById('selector'); + selector.value = JSON.stringify([...this.added_items]); + const added_list = document.getElementById('added_list'); + + while(selector.firstChild) + { + selector.removeChild(selector.firstChild); + } + while(added_list.firstChild) + { + added_list.removeChild(added_list.firstChild); + } + + let list_html = ""; + + for( const item_id of this.added_items ) + { + const item = this.items[item_id]; + + const element_entry_text = this.generate_element_text(item); + + list_html += '
' + + '

' + + element_entry_text + + '

' + + ''; + list_html += '
'; + } + added_list.innerHTML = list_html; + } +} diff --git a/src/templates/dashboard/searchable_select_multiple.html b/src/templates/dashboard/searchable_select_multiple.html index 91ed09c..8bcf890 100644 --- a/src/templates/dashboard/searchable_select_multiple.html +++ b/src/templates/dashboard/searchable_select_multiple.html @@ -1,4 +1,5 @@ +
@@ -16,7 +17,7 @@
- @@ -161,329 +162,48 @@
-- cgit 1.2.3-korg