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Updated for modern Firefox. Untested elsewhere! #3

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Updated for modern Firefox. Untested elsewhere! #3

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182 changes: 119 additions & 63 deletions keanu.js
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Original file line number Diff line number Diff line change
Expand Up @@ -39,54 +39,49 @@ var keanu;
32: 'Space',
92: 'Win',
224: 'Cmd'
},
//
browser_is_webkit = navigator.appVersion.indexOf('Chrome') !== -1;

// Webkit browsers report some funky characters for non-ascii characters
if(browser_is_webkit){
var webkit_transforms = {
13: 'Enter',
37: 'Left',
38: 'Up',
39: 'Down',
40: 'Right',
91: 'Cmd',
112: 'F1',
113: 'F2',
114: 'F3',
115: 'F4',
116: 'F5',
117: 'F6',
118: 'F7',
119: 'F8',
120: 'F9',
121: 'F10',
122: 'F11',
123: 'F12',
186: ';',
187: '=',
188: ',',
189: '-',
190: '.',
191: '/',
192: '`',
219: '[',
220: '\\',
221: ']',
222: "'"
};

// Merge the transforms
for(var key in webkit_transforms)
TRANSFORMS[key] = webkit_transforms[key];

MODIFIERS.push('16');
MODIFIERS.push('Shift');
//
MODIFIERS.push('18');
MODIFIERS.push('Alt');
}
var webkit_transforms = {
13: 'Enter',
37: 'Left',
38: 'Up',
39: 'Down',
40: 'Right',
91: 'Cmd',
112: 'F1',
113: 'F2',
114: 'F3',
115: 'F4',
116: 'F5',
117: 'F6',
118: 'F7',
119: 'F8',
120: 'F9',
121: 'F10',
122: 'F11',
123: 'F12',
186: ';',
187: '=',
188: ',',
189: '-',
190: '.',
191: '/',
192: '`',
219: '[',
220: '\\',
221: ']',
222: '\''
};

// Merge the transforms
for(var key in webkit_transforms)
TRANSFORMS[key] = webkit_transforms[key];

MODIFIERS.push('16');
MODIFIERS.push('Shift');
//
MODIFIERS.push('18');
MODIFIERS.push('Alt');

// Add the reverse transform relationships
for(var transform_key in TRANSFORMS){
Expand All @@ -96,7 +91,7 @@ var keanu;
}


// Test whether a key which is a modifier
// Test whether a key is a modifier
function is_modifier(which){
return (
MODIFIERS.indexOf(which) !== -1 ||
Expand Down Expand Up @@ -162,27 +157,25 @@ var keanu;
return false;
}

function has_modifier(keyarray){
for(var i = 0; i < keyarray.length; i++){
if(is_modifier(keyarray[i])){
return true;
}
}
return false;
}

function has_function_key(keyarray){
var friendlyShortcut = get_friendly_shortcut(keyarray_to_shortcut(keyarray));
return 'F1?[0-9]'.search(friendlyShortcut) != -1;
}

// Determine if a key event should be considered valid
function validate_event(event){
var which = String(event.which);

if (
( // Keydown events from firefox are used to capture modifier
// keys.
!browser_is_webkit &&
event.type === 'keydown' &&
is_modifier(which)
) ||
( // Keypress events on firefox for normal characters
!browser_is_webkit &&
event.type === 'keypress'
) ||
( // Keydown events on webkit browsers for all keys
browser_is_webkit &&
event.type === 'keydown'
)
){
if (event.type === 'keydown') {
return which;
}

Expand Down Expand Up @@ -353,6 +346,63 @@ var keanu;
};
}


function get_friendly_shortcut (shortcut) {
var friendlyShortcut = '',
shortcutArr = keanu.shortcut_to_keyarray(shortcut),
which = null;

for (var i = 0; i < shortcutArr.length; i += 1) {
which = shortcutArr[i];
friendlyShortcut += keanu.transform_which(which);

if (i < shortcutArr.length -1) {
friendlyShortcut += ' + ';
}
}
return friendlyShortcut;
}


function shortcut_to_firefox_hotkey(shortcut) {
function transform_names(match) {
switch(match) {
case 'cmd':
return 'meta';
case 'ctrl':
return 'control';
default:
return match;
}
}
var friendlyShortcut = get_friendly_shortcut(shortcut).toLowerCase().replace(/ \+ /g, '-');
return friendlyShortcut.replace(/cmd|ctrl/gi, transform_names);
}


function firefox_to_friendly(shortcut) {
if(shortcut == null) {
return null;
}
function transform_names(match) {
switch(match) {
case 'meta':
return 'Cmd';
case 'control':
return 'Ctrl';
case 'shift':
return 'Shift';
case 'alt':
return 'Alt';
default:
return match;
}
}
var output = shortcut.toLowerCase().replace(/-/g, ' + ');
output = output.replace(/meta|control|shift|alt/gi, transform_names);
return output;
}

// TODO: We might just want to declare each function as a member of exports
// instead of doing it here.
exports.listen = listen;
Expand All @@ -361,6 +411,12 @@ var keanu;
exports.shortcut_to_keyarray = shortcut_to_keyarray;
exports.transform_which = transform_which;
exports.is_modifier = is_modifier;
exports.has_modifier = has_modifier;
exports.has_function_key = has_function_key;
exports.has_non_modifier = has_non_modifier;
exports.get_friendly_shortcut = get_friendly_shortcut;
exports.shortcut_to_firefox_hotkey = shortcut_to_firefox_hotkey;
exports.firefox_to_friendly = firefox_to_friendly;

return exports;
}())));