Index: third_party/polymer/components-chromium/core-a11y-keys/core-a11y-keys-extracted.js |
diff --git a/third_party/polymer/components-chromium/core-a11y-keys/core-a11y-keys-extracted.js b/third_party/polymer/components-chromium/core-a11y-keys/core-a11y-keys-extracted.js |
deleted file mode 100644 |
index 11c5168584c48885a789ba369b3fadbe5ed51d50..0000000000000000000000000000000000000000 |
--- a/third_party/polymer/components-chromium/core-a11y-keys/core-a11y-keys-extracted.js |
+++ /dev/null |
@@ -1,248 +0,0 @@ |
- |
- (function() { |
- /* |
- * Chrome uses an older version of DOM Level 3 Keyboard Events |
- * |
- * Most keys are labeled as text, but some are Unicode codepoints. |
- * Values taken from: http://www.w3.org/TR/2007/WD-DOM-Level-3-Events-20071221/keyset.html#KeySet-Set |
- */ |
- var KEY_IDENTIFIER = { |
- 'U+0009': 'tab', |
- 'U+001B': 'esc', |
- 'U+0020': 'space', |
- 'U+002A': '*', |
- 'U+0030': '0', |
- 'U+0031': '1', |
- 'U+0032': '2', |
- 'U+0033': '3', |
- 'U+0034': '4', |
- 'U+0035': '5', |
- 'U+0036': '6', |
- 'U+0037': '7', |
- 'U+0038': '8', |
- 'U+0039': '9', |
- 'U+0041': 'a', |
- 'U+0042': 'b', |
- 'U+0043': 'c', |
- 'U+0044': 'd', |
- 'U+0045': 'e', |
- 'U+0046': 'f', |
- 'U+0047': 'g', |
- 'U+0048': 'h', |
- 'U+0049': 'i', |
- 'U+004A': 'j', |
- 'U+004B': 'k', |
- 'U+004C': 'l', |
- 'U+004D': 'm', |
- 'U+004E': 'n', |
- 'U+004F': 'o', |
- 'U+0050': 'p', |
- 'U+0051': 'q', |
- 'U+0052': 'r', |
- 'U+0053': 's', |
- 'U+0054': 't', |
- 'U+0055': 'u', |
- 'U+0056': 'v', |
- 'U+0057': 'w', |
- 'U+0058': 'x', |
- 'U+0059': 'y', |
- 'U+005A': 'z', |
- 'U+007F': 'del' |
- }; |
- |
- /* |
- * Special table for KeyboardEvent.keyCode. |
- * KeyboardEvent.keyIdentifier is better, and KeyBoardEvent.key is even better than that |
- * |
- * Values from: https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent.keyCode#Value_of_keyCode |
- */ |
- var KEY_CODE = { |
- 9: 'tab', |
- 13: 'enter', |
- 27: 'esc', |
- 33: 'pageup', |
- 34: 'pagedown', |
- 35: 'end', |
- 36: 'home', |
- 32: 'space', |
- 37: 'left', |
- 38: 'up', |
- 39: 'right', |
- 40: 'down', |
- 46: 'del', |
- 106: '*' |
- }; |
- |
- /* |
- * KeyboardEvent.key is mostly represented by printable character made by the keyboard, with unprintable keys labeled |
- * nicely. |
- * |
- * However, on OS X, Alt+char can make a Unicode character that follows an Apple-specific mapping. In this case, we |
- * fall back to .keyCode. |
- */ |
- var KEY_CHAR = /[a-z0-9*]/; |
- |
- function transformKey(key) { |
- var validKey = ''; |
- if (key) { |
- var lKey = key.toLowerCase(); |
- if (lKey.length == 1) { |
- if (KEY_CHAR.test(lKey)) { |
- validKey = lKey; |
- } |
- } else if (lKey == 'multiply') { |
- // numpad '*' can map to Multiply on IE/Windows |
- validKey = '*'; |
- } else { |
- validKey = lKey; |
- } |
- } |
- return validKey; |
- } |
- |
- var IDENT_CHAR = /U\+/; |
- function transformKeyIdentifier(keyIdent) { |
- var validKey = ''; |
- if (keyIdent) { |
- if (IDENT_CHAR.test(keyIdent)) { |
- validKey = KEY_IDENTIFIER[keyIdent]; |
- } else { |
- validKey = keyIdent.toLowerCase(); |
- } |
- } |
- return validKey; |
- } |
- |
- function transformKeyCode(keyCode) { |
- var validKey = ''; |
- if (Number(keyCode)) { |
- if (keyCode >= 65 && keyCode <= 90) { |
- // ascii a-z |
- // lowercase is 32 offset from uppercase |
- validKey = String.fromCharCode(32 + keyCode); |
- } else if (keyCode >= 112 && keyCode <= 123) { |
- // function keys f1-f12 |
- validKey = 'f' + (keyCode - 112); |
- } else if (keyCode >= 48 && keyCode <= 57) { |
- // top 0-9 keys |
- validKey = String(48 - keyCode); |
- } else if (keyCode >= 96 && keyCode <= 105) { |
- // num pad 0-9 |
- validKey = String(96 - keyCode); |
- } else { |
- validKey = KEY_CODE[keyCode]; |
- } |
- } |
- return validKey; |
- } |
- |
- function keyboardEventToKey(ev) { |
- // fall back from .key, to .keyIdentifier, to .keyCode, and then to .detail.key to support artificial keyboard events |
- var normalizedKey = transformKey(ev.key) || transformKeyIdentifier(ev.keyIdentifier) || transformKeyCode(ev.keyCode) || transformKey(ev.detail.key) || ''; |
- return { |
- shift: ev.shiftKey, |
- ctrl: ev.ctrlKey, |
- meta: ev.metaKey, |
- alt: ev.altKey, |
- key: normalizedKey |
- }; |
- } |
- |
- /* |
- * Input: ctrl+shift+f7 => {ctrl: true, shift: true, key: 'f7'} |
- * ctrl/space => {ctrl: true} || {key: space} |
- */ |
- function stringToKey(keyCombo) { |
- var keys = keyCombo.split('+'); |
- var keyObj = Object.create(null); |
- keys.forEach(function(key) { |
- if (key == 'shift') { |
- keyObj.shift = true; |
- } else if (key == 'ctrl') { |
- keyObj.ctrl = true; |
- } else if (key == 'alt') { |
- keyObj.alt = true; |
- } else { |
- keyObj.key = key; |
- } |
- }); |
- return keyObj; |
- } |
- |
- function keyMatches(a, b) { |
- return Boolean(a.alt) == Boolean(b.alt) && Boolean(a.ctrl) == Boolean(b.ctrl) && Boolean(a.shift) == Boolean(b.shift) && a.key === b.key; |
- } |
- |
- /** |
- * Fired when a keycombo in `keys` is pressed. |
- * |
- * @event keys-pressed |
- */ |
- function processKeys(ev) { |
- var current = keyboardEventToKey(ev); |
- for (var i = 0, dk; i < this._desiredKeys.length; i++) { |
- dk = this._desiredKeys[i]; |
- if (keyMatches(dk, current)) { |
- ev.preventDefault(); |
- ev.stopPropagation(); |
- this.fire('keys-pressed', current, this, false); |
- break; |
- } |
- } |
- } |
- |
- function listen(node, handler) { |
- if (node && node.addEventListener) { |
- node.addEventListener('keydown', handler); |
- } |
- } |
- |
- function unlisten(node, handler) { |
- if (node && node.removeEventListener) { |
- node.removeEventListener('keydown', handler); |
- } |
- } |
- |
- Polymer('core-a11y-keys', { |
- created: function() { |
- this._keyHandler = processKeys.bind(this); |
- }, |
- attached: function() { |
- if (!this.target) { |
- this.target = this.parentNode; |
- } |
- listen(this.target, this._keyHandler); |
- }, |
- detached: function() { |
- unlisten(this.target, this._keyHandler); |
- }, |
- publish: { |
- /** |
- * The set of key combinations to listen for. |
- * |
- * @attribute keys |
- * @type string (keys syntax) |
- * @default '' |
- */ |
- keys: '', |
- /** |
- * The node that will fire keyboard events. |
- * Default to this element's parentNode unless one is assigned |
- * |
- * @attribute target |
- * @type Node |
- * @default this.parentNode |
- */ |
- target: null |
- }, |
- keysChanged: function() { |
- // * can have multiple mappings: shift+8, * on numpad or Multiply on numpad |
- var normalized = this.keys.replace('*', '* shift+*'); |
- this._desiredKeys = normalized.toLowerCase().split(' ').map(stringToKey); |
- }, |
- targetChanged: function(oldTarget) { |
- unlisten(oldTarget, this._keyHandler); |
- listen(this.target, this._keyHandler); |
- } |
- }); |
- })(); |