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WIP authentication with flask-login, restructuring of static files
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azivner
203
static/lib/fancytree/src/jquery.fancytree.gridnav.js
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203
static/lib/fancytree/src/jquery.fancytree.gridnav.js
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/*!
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* jquery.fancytree.gridnav.js
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*
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* Support keyboard navigation for trees with embedded input controls.
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* (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
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*
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* Copyright (c) 2008-2017, Martin Wendt (http://wwWendt.de)
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*
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* Released under the MIT license
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* https://github.com/mar10/fancytree/wiki/LicenseInfo
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*
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* @version 2.22.5
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* @date 2017-05-11T17:01:53Z
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*/
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;(function($, window, document, undefined) {
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"use strict";
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/*******************************************************************************
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* Private functions and variables
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*/
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// Allow these navigation keys even when input controls are focused
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var KC = $.ui.keyCode,
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// which keys are *not* handled by embedded control, but passed to tree
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// navigation handler:
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NAV_KEYS = {
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"text": [KC.UP, KC.DOWN],
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"checkbox": [KC.UP, KC.DOWN, KC.LEFT, KC.RIGHT],
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"link": [KC.UP, KC.DOWN, KC.LEFT, KC.RIGHT],
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"radiobutton": [KC.UP, KC.DOWN, KC.LEFT, KC.RIGHT],
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"select-one": [KC.LEFT, KC.RIGHT],
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"select-multiple": [KC.LEFT, KC.RIGHT]
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};
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/* Calculate TD column index (considering colspans).*/
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function getColIdx($tr, $td) {
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var colspan,
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td = $td.get(0),
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idx = 0;
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$tr.children().each(function () {
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if( this === td ) {
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return false;
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}
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colspan = $(this).prop("colspan");
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idx += colspan ? colspan : 1;
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});
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return idx;
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}
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/* Find TD at given column index (considering colspans).*/
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function findTdAtColIdx($tr, colIdx) {
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var colspan,
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res = null,
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idx = 0;
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$tr.children().each(function () {
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if( idx >= colIdx ) {
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res = $(this);
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return false;
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}
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colspan = $(this).prop("colspan");
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idx += colspan ? colspan : 1;
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});
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return res;
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}
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/* Find adjacent cell for a given direction. Skip empty cells and consider merged cells */
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function findNeighbourTd($target, keyCode){
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var $tr, colIdx,
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$td = $target.closest("td"),
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$tdNext = null;
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switch( keyCode ){
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case KC.LEFT:
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$tdNext = $td.prev();
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break;
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case KC.RIGHT:
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$tdNext = $td.next();
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break;
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case KC.UP:
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case KC.DOWN:
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$tr = $td.parent();
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colIdx = getColIdx($tr, $td);
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while( true ) {
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$tr = (keyCode === KC.UP) ? $tr.prev() : $tr.next();
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if( !$tr.length ) {
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break;
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}
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// Skip hidden rows
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if( $tr.is(":hidden") ) {
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continue;
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}
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// Find adjacent cell in the same column
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$tdNext = findTdAtColIdx($tr, colIdx);
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// Skip cells that don't conatain a focusable element
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if( $tdNext && $tdNext.find(":input,a").length ) {
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break;
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}
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}
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break;
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}
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return $tdNext;
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}
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/*******************************************************************************
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* Extension code
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*/
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$.ui.fancytree.registerExtension({
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name: "gridnav",
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version: "2.22.5",
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// Default options for this extension.
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options: {
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autofocusInput: false, // Focus first embedded input if node gets activated
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handleCursorKeys: true // Allow UP/DOWN in inputs to move to prev/next node
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},
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treeInit: function(ctx){
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// gridnav requires the table extension to be loaded before itself
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this._requireExtension("table", true, true);
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this._superApply(arguments);
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this.$container.addClass("fancytree-ext-gridnav");
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// Activate node if embedded input gets focus (due to a click)
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this.$container.on("focusin", function(event){
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var ctx2,
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node = $.ui.fancytree.getNode(event.target);
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if( node && !node.isActive() ){
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// Call node.setActive(), but also pass the event
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ctx2 = ctx.tree._makeHookContext(node, event);
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ctx.tree._callHook("nodeSetActive", ctx2, true);
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}
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});
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},
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nodeSetActive: function(ctx, flag, callOpts) {
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var $outer,
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opts = ctx.options.gridnav,
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node = ctx.node,
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event = ctx.originalEvent || {},
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triggeredByInput = $(event.target).is(":input");
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flag = (flag !== false);
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this._superApply(arguments);
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if( flag ){
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if( ctx.options.titlesTabbable ){
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if( !triggeredByInput ) {
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$(node.span).find("span.fancytree-title").focus();
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node.setFocus();
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}
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// If one node is tabbable, the container no longer needs to be
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ctx.tree.$container.attr("tabindex", "-1");
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// ctx.tree.$container.removeAttr("tabindex");
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} else if( opts.autofocusInput && !triggeredByInput ){
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// Set focus to input sub input (if node was clicked, but not
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// when TAB was pressed )
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$outer = $(node.tr || node.span);
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$outer.find(":input:enabled:first").focus();
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}
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}
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},
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nodeKeydown: function(ctx) {
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var inputType, handleKeys, $td,
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opts = ctx.options.gridnav,
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event = ctx.originalEvent,
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$target = $(event.target);
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if( $target.is(":input:enabled") ) {
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inputType = $target.prop("type");
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} else if( $target.is("a") ) {
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inputType = "link";
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}
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// ctx.tree.debug("ext-gridnav nodeKeydown", event, inputType);
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if( inputType && opts.handleCursorKeys ){
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handleKeys = NAV_KEYS[inputType];
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if( handleKeys && $.inArray(event.which, handleKeys) >= 0 ){
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$td = findNeighbourTd($target, event.which);
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if( $td && $td.length ) {
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// ctx.node.debug("ignore keydown in input", event.which, handleKeys);
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$td.find(":input:enabled,a").focus();
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// Prevent Fancytree default navigation
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return false;
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}
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}
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return true;
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}
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// ctx.tree.debug("ext-gridnav NOT HANDLED", event, inputType);
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return this._superApply(arguments);
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}
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});
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}(jQuery, window, document));
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