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fix image loading
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Luke Pulverenti
parent
46776f1eac
commit
0d59297b1b
86 changed files with 5857 additions and 273 deletions
421
dashboard-ui/thirdparty/iron-a11y-keys-behavior/iron-a11y-keys-behavior.html
vendored
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421
dashboard-ui/thirdparty/iron-a11y-keys-behavior/iron-a11y-keys-behavior.html
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@ -0,0 +1,421 @@
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<!--
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@license
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Copyright (c) 2015 The Polymer Project Authors. All rights reserved.
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This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
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The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
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The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
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Code distributed by Google as part of the polymer project is also
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subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
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-->
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<link rel="import" href="../polymer/polymer.html">
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<script>
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(function() {
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'use strict';
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/**
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* Chrome uses an older version of DOM Level 3 Keyboard Events
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*
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* Most keys are labeled as text, but some are Unicode codepoints.
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* Values taken from: http://www.w3.org/TR/2007/WD-DOM-Level-3-Events-20071221/keyset.html#KeySet-Set
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*/
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var KEY_IDENTIFIER = {
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'U+0009': 'tab',
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'U+001B': 'esc',
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'U+0020': 'space',
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'U+002A': '*',
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'U+0030': '0',
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'U+0031': '1',
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'U+0032': '2',
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'U+0033': '3',
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'U+0034': '4',
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'U+0035': '5',
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'U+0036': '6',
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'U+0037': '7',
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'U+0038': '8',
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'U+0039': '9',
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'U+0041': 'a',
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'U+0042': 'b',
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'U+0043': 'c',
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'U+0044': 'd',
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'U+0045': 'e',
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'U+0046': 'f',
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'U+0047': 'g',
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'U+0048': 'h',
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'U+0049': 'i',
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'U+004A': 'j',
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'U+004B': 'k',
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'U+004C': 'l',
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'U+004D': 'm',
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'U+004E': 'n',
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'U+004F': 'o',
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'U+0050': 'p',
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'U+0051': 'q',
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'U+0052': 'r',
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'U+0053': 's',
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'U+0054': 't',
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'U+0055': 'u',
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'U+0056': 'v',
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'U+0057': 'w',
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'U+0058': 'x',
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'U+0059': 'y',
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'U+005A': 'z',
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'U+007F': 'del'
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};
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/**
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* Special table for KeyboardEvent.keyCode.
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* KeyboardEvent.keyIdentifier is better, and KeyBoardEvent.key is even better
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* than that.
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*
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* Values from: https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent.keyCode#Value_of_keyCode
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*/
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var KEY_CODE = {
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9: 'tab',
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13: 'enter',
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27: 'esc',
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33: 'pageup',
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34: 'pagedown',
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35: 'end',
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36: 'home',
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32: 'space',
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37: 'left',
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38: 'up',
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39: 'right',
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40: 'down',
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46: 'del',
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106: '*'
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};
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/**
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* MODIFIER_KEYS maps the short name for modifier keys used in a key
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* combo string to the property name that references those same keys
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* in a KeyboardEvent instance.
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*/
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var MODIFIER_KEYS = {
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shift: 'shiftKey',
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ctrl: 'ctrlKey',
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alt: 'altKey',
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meta: 'metaKey'
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};
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/**
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* KeyboardEvent.key is mostly represented by printable character made by
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* the keyboard, with unprintable keys labeled nicely.
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*
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* However, on OS X, Alt+char can make a Unicode character that follows an
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* Apple-specific mapping. In this case, we
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* fall back to .keyCode.
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*/
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var KEY_CHAR = /[a-z0-9*]/;
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/**
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* Matches a keyIdentifier string.
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*/
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var IDENT_CHAR = /U\+/;
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/**
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* Matches arrow keys in Gecko 27.0+
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*/
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var ARROW_KEY = /^arrow/;
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/**
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* Matches space keys everywhere (notably including IE10's exceptional name
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* `spacebar`).
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*/
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var SPACE_KEY = /^space(bar)?/;
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function transformKey(key) {
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var validKey = '';
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if (key) {
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var lKey = key.toLowerCase();
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if (lKey.length == 1) {
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if (KEY_CHAR.test(lKey)) {
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validKey = lKey;
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}
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} else if (ARROW_KEY.test(lKey)) {
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validKey = lKey.replace('arrow', '');
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} else if (SPACE_KEY.test(lKey)) {
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validKey = 'space';
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} else if (lKey == 'multiply') {
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// numpad '*' can map to Multiply on IE/Windows
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validKey = '*';
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} else {
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validKey = lKey;
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}
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}
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return validKey;
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}
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function transformKeyIdentifier(keyIdent) {
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var validKey = '';
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if (keyIdent) {
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if (IDENT_CHAR.test(keyIdent)) {
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validKey = KEY_IDENTIFIER[keyIdent];
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} else {
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validKey = keyIdent.toLowerCase();
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}
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}
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return validKey;
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}
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function transformKeyCode(keyCode) {
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var validKey = '';
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if (Number(keyCode)) {
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if (keyCode >= 65 && keyCode <= 90) {
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// ascii a-z
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// lowercase is 32 offset from uppercase
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validKey = String.fromCharCode(32 + keyCode);
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} else if (keyCode >= 112 && keyCode <= 123) {
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// function keys f1-f12
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validKey = 'f' + (keyCode - 112);
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} else if (keyCode >= 48 && keyCode <= 57) {
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// top 0-9 keys
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validKey = String(48 - keyCode);
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} else if (keyCode >= 96 && keyCode <= 105) {
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// num pad 0-9
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validKey = String(96 - keyCode);
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} else {
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validKey = KEY_CODE[keyCode];
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}
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}
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return validKey;
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}
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function normalizedKeyForEvent(keyEvent) {
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// fall back from .key, to .keyIdentifier, to .keyCode, and then to
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// .detail.key to support artificial keyboard events
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return transformKey(keyEvent.key) ||
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transformKeyIdentifier(keyEvent.keyIdentifier) ||
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transformKeyCode(keyEvent.keyCode) ||
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transformKey(keyEvent.detail.key) || '';
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}
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function keyComboMatchesEvent(keyCombo, keyEvent) {
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return normalizedKeyForEvent(keyEvent) === keyCombo.key &&
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!!keyEvent.shiftKey === !!keyCombo.shiftKey &&
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!!keyEvent.ctrlKey === !!keyCombo.ctrlKey &&
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!!keyEvent.altKey === !!keyCombo.altKey &&
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!!keyEvent.metaKey === !!keyCombo.metaKey;
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}
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function parseKeyComboString(keyComboString) {
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return keyComboString.split('+').reduce(function(parsedKeyCombo, keyComboPart) {
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var eventParts = keyComboPart.split(':');
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var keyName = eventParts[0];
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var event = eventParts[1];
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if (keyName in MODIFIER_KEYS) {
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parsedKeyCombo[MODIFIER_KEYS[keyName]] = true;
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} else {
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parsedKeyCombo.key = keyName;
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parsedKeyCombo.event = event || 'keydown';
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}
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return parsedKeyCombo;
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}, {
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combo: keyComboString.split(':').shift()
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});
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}
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function parseEventString(eventString) {
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return eventString.split(' ').map(function(keyComboString) {
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return parseKeyComboString(keyComboString);
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});
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}
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/**
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* `Polymer.IronA11yKeysBehavior` provides a normalized interface for processing
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* keyboard commands that pertain to [WAI-ARIA best practices](http://www.w3.org/TR/wai-aria-practices/#kbd_general_binding).
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* The element takes care of browser differences with respect to Keyboard events
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* and uses an expressive syntax to filter key presses.
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*
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* Use the `keyBindings` prototype property to express what combination of keys
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* will trigger the event to fire.
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*
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* Use the `key-event-target` attribute to set up event handlers on a specific
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* node.
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* The `keys-pressed` event will fire when one of the key combinations set with the
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* `keys` property is pressed.
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*
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* @demo demo/index.html
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* @polymerBehavior IronA11yKeysBehavior
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*/
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Polymer.IronA11yKeysBehavior = {
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properties: {
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/**
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* The HTMLElement that will be firing relevant KeyboardEvents.
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*/
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keyEventTarget: {
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type: Object,
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value: function() {
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return this;
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}
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},
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_boundKeyHandlers: {
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type: Array,
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value: function() {
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return [];
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}
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},
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// We use this due to a limitation in IE10 where instances will have
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// own properties of everything on the "prototype".
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_imperativeKeyBindings: {
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type: Object,
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value: function() {
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return {};
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}
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}
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},
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observers: [
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'_resetKeyEventListeners(keyEventTarget, _boundKeyHandlers)'
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],
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keyBindings: {},
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registered: function() {
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this._prepKeyBindings();
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},
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attached: function() {
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this._listenKeyEventListeners();
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},
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detached: function() {
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this._unlistenKeyEventListeners();
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},
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/**
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* Can be used to imperatively add a key binding to the implementing
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* element. This is the imperative equivalent of declaring a keybinding
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* in the `keyBindings` prototype property.
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*/
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addOwnKeyBinding: function(eventString, handlerName) {
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this._imperativeKeyBindings[eventString] = handlerName;
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this._prepKeyBindings();
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this._resetKeyEventListeners();
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},
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/**
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* When called, will remove all imperatively-added key bindings.
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*/
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removeOwnKeyBindings: function() {
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this._imperativeKeyBindings = {};
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this._prepKeyBindings();
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this._resetKeyEventListeners();
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},
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keyboardEventMatchesKeys: function(event, eventString) {
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var keyCombos = parseEventString(eventString);
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var index;
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for (index = 0; index < keyCombos.length; ++index) {
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if (keyComboMatchesEvent(keyCombos[index], event)) {
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return true;
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}
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}
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return false;
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},
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_collectKeyBindings: function() {
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var keyBindings = this.behaviors.map(function(behavior) {
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return behavior.keyBindings;
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});
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if (keyBindings.indexOf(this.keyBindings) === -1) {
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keyBindings.push(this.keyBindings);
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}
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return keyBindings;
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},
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_prepKeyBindings: function() {
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this._keyBindings = {};
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this._collectKeyBindings().forEach(function(keyBindings) {
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for (var eventString in keyBindings) {
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this._addKeyBinding(eventString, keyBindings[eventString]);
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}
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}, this);
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for (var eventString in this._imperativeKeyBindings) {
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this._addKeyBinding(eventString, this._imperativeKeyBindings[eventString]);
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}
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},
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_addKeyBinding: function(eventString, handlerName) {
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parseEventString(eventString).forEach(function(keyCombo) {
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this._keyBindings[keyCombo.event] =
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this._keyBindings[keyCombo.event] || [];
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this._keyBindings[keyCombo.event].push([
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keyCombo,
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handlerName
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]);
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}, this);
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},
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_resetKeyEventListeners: function() {
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this._unlistenKeyEventListeners();
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if (this.isAttached) {
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this._listenKeyEventListeners();
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}
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},
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_listenKeyEventListeners: function() {
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Object.keys(this._keyBindings).forEach(function(eventName) {
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var keyBindings = this._keyBindings[eventName];
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var boundKeyHandler = this._onKeyBindingEvent.bind(this, keyBindings);
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this._boundKeyHandlers.push([this.keyEventTarget, eventName, boundKeyHandler]);
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this.keyEventTarget.addEventListener(eventName, boundKeyHandler);
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}, this);
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},
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_unlistenKeyEventListeners: function() {
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var keyHandlerTuple;
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var keyEventTarget;
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var eventName;
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var boundKeyHandler;
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while (this._boundKeyHandlers.length) {
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// My kingdom for block-scope binding and destructuring assignment..
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keyHandlerTuple = this._boundKeyHandlers.pop();
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keyEventTarget = keyHandlerTuple[0];
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eventName = keyHandlerTuple[1];
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boundKeyHandler = keyHandlerTuple[2];
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keyEventTarget.removeEventListener(eventName, boundKeyHandler);
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}
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},
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_onKeyBindingEvent: function(keyBindings, event) {
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keyBindings.forEach(function(keyBinding) {
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var keyCombo = keyBinding[0];
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var handlerName = keyBinding[1];
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if (!event.defaultPrevented && keyComboMatchesEvent(keyCombo, event)) {
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this._triggerKeyHandler(keyCombo, handlerName, event);
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}
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}, this);
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},
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_triggerKeyHandler: function(keyCombo, handlerName, keyboardEvent) {
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var detail = Object.create(keyCombo);
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detail.keyboardEvent = keyboardEvent;
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this[handlerName].call(this, new CustomEvent(keyCombo.event, {
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detail: detail
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}));
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}
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};
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})();
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</script>
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