Add 'dynamic favicon' setting

This commit is contained in:
Chris Hunt 2013-06-07 17:15:49 -07:00
parent eab38b5c34
commit af1c14939e
5 changed files with 235 additions and 1 deletions

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Width:  |  Height:  |  Size: 1.3 KiB

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@ -85,6 +85,14 @@ Discourse = Ember.Application.createWithMixins({
}, 200);
}.observes('title', 'hasFocus', 'notifyCount'),
faviconChanged: function() {
if(Discourse.SiteSettings.dynamic_favicon) {
$.faviconNotify(
Discourse.SiteSettings.favicon_url, this.get('notifyCount')
);
}
}.observes('notifyCount'),
// The classes of buttons to show on a post
postButtons: function() {
return Discourse.SiteSettings.post_menu.split("|").map(function(i) {

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@ -0,0 +1,224 @@
/**
* jQuery Favicon Notify
*
* Updates the favicon to notify the user of changes. In the original tests I
* had an embedded font collection to allow any charachers - I decided that the
* ~130Kb and added complexity was overkill. As such it now uses a manual glyph
* set meaning that only numerical notifications are possible.
*
* Dual licensed under the MIT and GPL licenses:
*
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl.html
*
* @author David King
* @copyright Copyright (c) 2011 +
* @url oodavid.com
*/
(function($){
var canvas;
var bg = '#000000';
var fg = '#FFFFFF';
var pos = 'br';
$.faviconNotify = function(icon, num, myPos, myBg, myFg){
// Default the positions
myPos = myPos || pos;
myFg = myFg || fg;
myBg = myBg || bg;
// Create a canvas if we need one
canvas = canvas || $('<canvas />')[0];
if(canvas.getContext){
// Load the icon
$('<img />').load(function(e){
// Load the icon into the canvas
canvas.height = canvas.width = 16;
var ctx = canvas.getContext('2d');
ctx.clearRect(0, 0, canvas.width, canvas.height);
ctx.drawImage(this, 0, 0);
// We gots num?
if(num !== undefined){
num = parseFloat(num, 10);
// Convert the num into a glyphs array
var myGlyphs = [];
if(num > 99){
myGlyphs.push(glyphs['LOTS']);
} else {
num = num.toString().split('');
$.each(num, function(k,v){
myGlyphs.push(glyphs[v]);
});
}
// Merge the glyphs together
var combined = [];
var glyphHeight = myGlyphs[0].length;
$.each(myGlyphs, function(k,v){
for(y=0; y<glyphHeight; y++){
// First pass?
if(combined[y] === undefined) {
combined[y] = v[y];
} else {
// Merge the glyph parts, careful of the boundaries
var l = combined[y].length;
if(combined[y][(l-1)] == ' '){
combined[y] = combined[y].substring(0, (l-1)) + v[y];
} else {
combined[y] += v[y].substring(1);
}
}
}
});
// Figure out our starting position
var glyphWidth = combined[0].length;
var x = (myPos.indexOf('l') != -1) ? 0 : (16 - glyphWidth);
var y = (myPos.indexOf('t') != -1) ? 0 : (16 - glyphHeight);
// Draw them pixels!
for(dX=0; dX<glyphWidth; dX++){
for(dY=0; dY<glyphHeight; dY++){
var pixel = combined[dY][dX];
if(pixel != ' '){
ctx.fillStyle = (pixel == '@') ? myFg : myBg;
ctx.fillRect((x+dX), (y+dY), 1, 1);
}
}
}
}
// Update the favicon
$('link[rel$=icon]').remove();
$('head').append($('<link rel="shortcut icon" type="image/x-icon"/>').attr('href', canvas.toDataURL('image/png')));
}).attr('src', icon)
}
};
var glyphs = {
'0': [
' --- ',
' -@@@- ',
'-@---@-',
'-@- -@-',
'-@- -@-',
'-@- -@-',
'-@---@-',
' -@@@- ',
' --- ' ],
'1': [
' - ',
' -@- ',
'-@@- ',
' -@- ',
' -@- ',
' -@- ',
' -@- ',
'-@@@-',
' --- ' ],
'2': [
' --- ',
' -@@@- ',
'-@---@-',
' - --@-',
' -@@- ',
' -@-- ',
'-@---- ',
'-@@@@@-',
' ----- ' ],
'3': [
' --- ',
' -@@@- ',
'-@---@-',
' - --@-',
' -@@- ',
' - --@-',
'-@---@-',
' -@@@- ',
' --- ' ],
'4': [
' -- ',
' -@@-',
' -@-@-',
' -@--@-',
'-@---@-',
'-@@@@@-',
' ----@-',
' -@-',
' - ' ],
'5': [
' ----- ',
'-@@@@@-',
'-@---- ',
'-@--- ',
'-@@@@- ',
' ----@-',
'-@---@-',
' -@@@- ',
' --- ' ],
'6': [
' --- ',
' -@@@- ',
'-@---@-',
'-@---- ',
'-@@@@- ',
'-@---@-',
'-@---@-',
' -@@@- ',
' --- ' ],
'7': [
' ----- ',
'-@@@@@-',
' ----@-',
' -@- ',
' -@- ',
' -@- ',
' -@- ',
' -@- ',
' - ' ],
'8': [
' --- ',
' -@@@- ',
'-@---@-',
'-@---@-',
' -@@@- ',
'-@---@-',
'-@---@-',
' -@@@- ',
' --- ' ],
'9': [
' --- ',
' -@@@- ',
'-@---@-',
'-@---@-',
' -@@@@-',
' ----@-',
'-@---@-',
' -@@@- ',
' --- ' ],
'!': [
' - ',
'-@-',
'-@-',
'-@-',
'-@-',
'-@-',
' - ',
'-@-',
' - ' ],
'.': [
' ',
' ',
' ',
' ',
' ',
' ',
' - ',
'-@-',
' - ' ],
'LOTS': [
' - -- --- -- ',
'-@- -@@-@@@--@@-',
'-@--@--@-@--@- ',
'-@--@--@-@--@- ',
'-@--@--@-@- -@- ',
'-@--@--@-@- -@-',
'-@--@--@-@----@-',
'-@@@-@@--@-@@@- ',
' --- -- - --- '
]
};
})(jQuery);

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@ -79,7 +79,8 @@ class SiteSetting < ActiveRecord::Base
setting(:invite_expiry_days, 14)
setting(:active_user_rate_limit_secs, 60)
setting(:previous_visit_timeout_hours, 1)
setting(:favicon_url, '/assets/default-favicon.png')
client_setting(:favicon_url, '/assets/default-favicon.ico')
client_setting(:dynamic_favicon, false)
setting(:apple_touch_icon_url, '/assets/default-apple-touch-icon.png')
setting(:ninja_edit_window, 5.minutes.to_i)

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@ -460,6 +460,7 @@ en:
logo_url: "The logo for your site eg: http://example.com/logo.png"
logo_small_url: "The small logo for your site used when scrolling down on topics eg: http://example.com/logo-small.png"
favicon_url: "A favicon for your site, see http://en.wikipedia.org/wiki/Favicon"
dynamic_favicon: "Show incoming message notifications on favicon"
apple_touch_icon_url: "Icon used for Apple touch devices. Recommended size is 144px by 144px."
notification_email: "The return email address used when sending system emails such as notifying users of lost passwords, new accounts etc"