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use Function.bind() instead of passing the 'this' object to each and every

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function. but that's no nice solution either ...
This commit is contained in:
Manuel Friedli 2014-07-04 13:47:16 +02:00
parent b23a56f866
commit be221aa88d
1 changed files with 94 additions and 97 deletions
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191
js/uhr.js
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@ -52,26 +52,25 @@
// public interface methods (exported later) // public interface methods (exported later)
var start = function start() { var start = function start() {
if (!isOn(this)) { if (!isOn.bind(this)()) {
var uhr = this;
this.timer = window.setInterval(function uhrTimer() { this.timer = window.setInterval(function uhrTimer() {
uhr.options.time = new Date(); this.options.time = new Date();
update(uhr); update.bind(this)();
}, 1000); }.bind(this), 1000);
update(this); update.bind(this)();
setCookie(this, 'uhr-status', 'on'); setCookie.bind(this)('uhr-status', 'on');
} }
}; };
var stop = function stop() { var stop = function stop() {
if (isOn(this)) { if (isOn.bind(this)()) {
window.clearInterval(this.timer); window.clearInterval(this.timer);
this.timer = null; this.timer = null;
update(this); update.bind(this)();
setCookie(this, 'uhr-status', 'off'); setCookie.bind(this)('uhr-status', 'off');
} }
}; };
var toggle = function toggle() { var toggle = function toggle() {
if (isOn(this)) { if (isOn.bind(this)()) {
this.stop(); this.stop();
} else { } else {
this.start(); this.start();
@ -80,14 +79,13 @@
var setLanguage = function setLanugage(languageKey) { var setLanguage = function setLanugage(languageKey) {
if (languageKey !== this.options.language) { if (languageKey !== this.options.language) {
this.options.language = languageKey; this.options.language = languageKey;
var renderer = new UhrRenderer(language(this), this.element.find('.letterarea')); var renderer = new UhrRenderer(language.bind(this)(), this.element.find('.letterarea'));
var uhr = this; renderer.render.bind(this)(function () {
renderer.render(this, function () { this.currentMinute = -1;
uhr.currentMinute = -1; update.bind(this)();
update(uhr); }.bind(this));
}); setCookie.bind(this)('uhr-language', languageKey);
setCookie(this, 'uhr-language', languageKey); update.bind(this)();
update(this);
} }
}; };
var setTheme = function setTheme(theme) { var setTheme = function setTheme(theme) {
@ -95,7 +93,7 @@
this.element.removeClass(this.options.theme).addClass(theme); this.element.removeClass(this.options.theme).addClass(theme);
$('#uhr-onoffswitch' + this.id).removeClass(this.options.theme).addClass(theme); $('#uhr-onoffswitch' + this.id).removeClass(this.options.theme).addClass(theme);
this.options.theme = theme; this.options.theme = theme;
setCookie(this, 'uhr-theme', theme); setCookie.bind(this)('uhr-theme', theme);
} }
}; };
var setTime = function setTime(time) { var setTime = function setTime(time) {
@ -108,7 +106,7 @@
} }
this.options.time = time; this.options.time = time;
} }
update(this); update.bind(this)();
}; };
// private interface methods // private interface methods
@ -120,16 +118,16 @@
if (this.options.time === undefined) { if (this.options.time === undefined) {
this.options.time = new Date(); this.options.time = new Date();
} }
setupHTML(this); setupHTML.bind(this)();
wireFunctionality(this); wireFunctionality.bind(this)();
if (userTime !== undefined) { if (userTime !== undefined) {
this.time(userTime); this.time(userTime);
} }
}; };
// private helper methods (not exported) // private helper methods (not exported)
// set up // set up
var setupHTML = function setupHTML(uhr) { var setupHTML = function setupHTML() {
var e = uhr.element; var e = this.element;
// Base clock area // Base clock area
e.addClass('uhr'); e.addClass('uhr');
e.empty(); e.empty();
@ -139,17 +137,17 @@
e.append('<span class="item dot dot4"></span>'); e.append('<span class="item dot dot4"></span>');
e.append('<div class="letterarea"></div>'); e.append('<div class="letterarea"></div>');
e.append('<div class="reflection"></div>'); e.append('<div class="reflection"></div>');
e.css('width', uhr.options.width); e.css('width', this.options.width);
var realWidth = e.width(); var realWidth = e.width();
e.width(realWidth); e.width(realWidth);
e.height(realWidth); e.height(realWidth);
e.css('font-size', (realWidth / 40) + 'px'); e.css('font-size', (realWidth / 40) + 'px');
if (uhr.options.controls) { if (this.options.controls) {
// on/off switch // on/off switch
var toggleSwitch = $('<div class="onoffswitch" id="uhr-onoffswitch' + uhr.id + '"></div>'); var toggleSwitch = $('<div class="onoffswitch" id="uhr-onoffswitch' + this.id + '"></div>');
toggleSwitch.append('<input type="checkbox" class="onoffswitch-checkbox" id="uhr-onoffswitch-checkbox' + uhr.id + '" checked="checked" />'); toggleSwitch.append('<input type="checkbox" class="onoffswitch-checkbox" id="uhr-onoffswitch-checkbox' + this.id + '" checked="checked" />');
toggleSwitch.append('<label class="onoffswitch-label" for="uhr-onoffswitch-checkbox' + uhr.id + '">' toggleSwitch.append('<label class="onoffswitch-label" for="uhr-onoffswitch-checkbox' + this.id + '">'
+ '<div class="onoffswitch-inner"></div>' + '<div class="onoffswitch-inner"></div>'
+ '<div class="onoffswitch-switch"></div>' + '<div class="onoffswitch-switch"></div>'
+ '</label>'); + '</label>');
@ -157,7 +155,7 @@
// language chooser // language chooser
if (uhrGlobals.languages.length > 1) { if (uhrGlobals.languages.length > 1) {
var languageChooser = $('<select id="uhr-languagechooser' + uhr.id + '"></select>'); var languageChooser = $('<select id="uhr-languagechooser' + this.id + '"></select>');
uhrGlobals.languages.forEach(function (item) { uhrGlobals.languages.forEach(function (item) {
languageChooser.append('<option value="' + item.code + '">' + item.language + '</option>'); languageChooser.append('<option value="' + item.code + '">' + item.language + '</option>');
}); });
@ -166,7 +164,7 @@
// theme chooser // theme chooser
if (uhrGlobals.themes.length > 1) { if (uhrGlobals.themes.length > 1) {
var themeChooser = $('<select id="uhr-themechooser' + uhr.id + '"></select>'); var themeChooser = $('<select id="uhr-themechooser' + this.id + '"></select>');
uhrGlobals.themes.forEach(function (item) { uhrGlobals.themes.forEach(function (item) {
themeChooser.append('<option value="' + item.styleClass + '">' + item.name + '</option>'); themeChooser.append('<option value="' + item.styleClass + '">' + item.name + '</option>');
}); });
@ -174,32 +172,31 @@
} }
} }
}; };
var wireFunctionality = function wireFunctionality(uhr) { var wireFunctionality = function wireFunctionality() {
// on/off switch // on/off switch
var toggleSwitch = $('#uhr-onoffswitch-checkbox' + uhr.id); var toggleSwitch = $('#uhr-onoffswitch-checkbox' + this.id);
toggleSwitch.on('click', function () { toggleSwitch.on('click', function () {
uhr.toggle(); this.toggle();
}); }.bind(this));
var status = $.cookie('uhr-status' + uhr.id); var status = $.cookie('uhr-status' + this.id);
if (status === undefined || uhr.options.force) { if (status === undefined || this.options.force) {
status = uhr.options.status; status = this.options.status;
} }
toggleSwitch.prop('checked', status === 'on'); toggleSwitch.prop('checked', status === 'on');
if (status === 'on') { if (status === 'on') {
uhr.start(); this.start();
} else { } else {
uhr.stop(); this.stop();
} }
// language chooser // language chooser
var languageChooser = $('#uhr-languagechooser' + uhr.id); var languageChooser = $('#uhr-languagechooser' + this.id);
languageChooser.on('change', function () { languageChooser.on('change', function () {
uhr.language(this.value); this.language(this.value);
}); }.bind(this));
var selectedLanguage = $.cookie('uhr-language' + uhr.id); var selectedLanguage = $.cookie('uhr-language' + this.id);
if (selectedLanguage === undefined || uhr.options.force) { if (selectedLanguage === undefined || this.options.force) {
selectedLanguage = uhr.options.language; selectedLanguage = this.options.language;
} }
var found = uhrGlobals.languages.some(function (item) { var found = uhrGlobals.languages.some(function (item) {
return selectedLanguage === item.code; return selectedLanguage === item.code;
@ -215,17 +212,17 @@
selectedLanguage = fallbackLanguage; selectedLanguage = fallbackLanguage;
} }
languageChooser.val(selectedLanguage); languageChooser.val(selectedLanguage);
uhr.options.language = ""; this.options.language = "";
uhr.language(selectedLanguage); this.language(selectedLanguage);
// theme chooser // theme chooser
var themeChooser = $('#uhr-themechooser' + uhr.id); var themeChooser = $('#uhr-themechooser' + this.id);
themeChooser.on('change', function () { themeChooser.on('change', function () {
uhr.theme(this.value); this.theme(this.value);
}); }.bind(this));
var selectedTheme = $.cookie('uhr-theme' + uhr.id); var selectedTheme = $.cookie('uhr-theme' + this.id);
if (selectedTheme === undefined || uhr.options.force) { if (selectedTheme === undefined || this.options.force) {
selectedTheme = uhr.options.theme; selectedTheme = this.options.theme;
} }
found = uhrGlobals.themes.some(function (item) { found = uhrGlobals.themes.some(function (item) {
return selectedTheme === item.styleClass; return selectedTheme === item.styleClass;
@ -236,70 +233,70 @@
selectedTheme = fallbackTheme; selectedTheme = fallbackTheme;
} }
themeChooser.val(selectedTheme); themeChooser.val(selectedTheme);
uhr.options.theme = ""; this.options.theme = "";
uhr.theme(selectedTheme); this.theme(selectedTheme);
}; };
var setCookie = function setCookie(uhr, cookieName, cookieValue) { var setCookie = function setCookie(cookieName, cookieValue) {
var options = {}; var options = {};
if (uhr.options.cookiePath !== undefined) { if (this.options.cookiePath !== undefined) {
options = {expires: 365, path: uhr.options.cookiePath}; options = {expires: 365, path: this.options.cookiePath};
} else { } else {
options = {expires: 365}; options = {expires: 365};
} }
$.cookie(cookieName + uhr.id, cookieValue, options); $.cookie(cookieName + this.id, cookieValue, options);
}; };
// business logic // business logic
var isOn = function isOn(uhr) { var isOn = function isOn() {
return uhr.timer !== null; return this.timer !== null;
}; };
var update = function update(uhr) { var update = function update() {
if (isOn(uhr)) { if (isOn.bind(this)()) {
var time = uhr.options.time; var time = this.options.time;
if (time.getMinutes() === uhr.currentMinute) { if (time.getMinutes() === this.currentMinute) {
return; return;
} }
uhr.currentMinute = time.getMinutes(); this.currentMinute = time.getMinutes();
show(uhr, time); show.bind(this)(time);
} else { } else {
clear(uhr); clear.bind(this)();
uhr.currentMinute = -1; this.currentMinute = -1;
} }
}; };
var show = function show(uhr, time) { var show = function show(time) {
var dotMinute = getDotMinute(uhr, time); var dotMinute = getDotMinute.bind(this)(time);
var hour = getHour(uhr, time); var hour = getHour.bind(this)(time);
var coarseMinute = getCoarseMinute(uhr, time); var coarseMinute = getCoarseMinute.bind(this)(time);
clear(uhr); clear.bind(this)();
highlight(uhr, 'on'); highlight.bind(this)('on');
for (var i = 1; i <= dotMinute; i++) { for (var i = 1; i <= dotMinute; i++) {
highlight(uhr, 'dot' + i); highlight.bind(this)('dot' + i);
} }
highlight(uhr, 'minute' + coarseMinute); highlight.bind(this)('minute' + coarseMinute);
highlight(uhr, 'hour' + hour); highlight.bind(this)('hour' + hour);
}; };
var highlight = function highlight(uhr, itemClass) { var highlight = function highlight(itemClass) {
uhr.element.find('.item.' + itemClass).addClass('active'); this.element.find('.item.' + itemClass).addClass('active');
}; };
var clear = function clear(uhr) { var clear = function clear() {
uhr.element.find('.item').removeClass('active'); this.element.find('.item').removeClass('active');
}; };
var getDotMinute = function getDotMinute(uhr, date) { var getDotMinute = function getDotMinute(date) {
if (typeof language(uhr).getDotMinute === 'function') { if (typeof language.bind(this)().getDotMinute === 'function') {
return language(uhr).getDotMinute(date); return language.bind(this)().getDotMinute(date);
} }
var minutes = date.getMinutes(); var minutes = date.getMinutes();
return minutes % 5; return minutes % 5;
}; };
var getCoarseMinute = function getCoarseMinute(uhr, date) { var getCoarseMinute = function getCoarseMinute(date) {
if (typeof language(uhr).getCoarseMinute === 'function') { if (typeof language.bind(this)().getCoarseMinute === 'function') {
return language(uhr).getCoarseMinute(date); return language.bind(this)().getCoarseMinute(date);
} }
return date.getMinutes(); return date.getMinutes();
}; };
var getHour = function getHour(uhr, date) { var getHour = function getHour(date) {
if (typeof language(uhr).getHour === 'function') { if (typeof language.bind(this)().getHour === 'function') {
return language(uhr).getHour(date); return language.bind(this)().getHour(date);
} }
var hour = date.getHours(); var hour = date.getHours();
if (date.getMinutes() >= 25) { if (date.getMinutes() >= 25) {
@ -308,10 +305,10 @@
return hour; return hour;
}; };
var language = function language(uhr) { var language = function language() {
var matchingLanguages = uhrGlobals.languages.filter(function (element) { var matchingLanguages = uhrGlobals.languages.filter(function (element) {
return (element.code === this.options.language); return (element.code === this.options.language);
}, uhr); }, this);
if (matchingLanguages.length > 0) { if (matchingLanguages.length > 0) {
return matchingLanguages[0]; return matchingLanguages[0];
} }
@ -345,7 +342,7 @@
* @param renderarea Das jQuery-gewrappte HTML-Element, auf dem gerendert werden soll. * @param renderarea Das jQuery-gewrappte HTML-Element, auf dem gerendert werden soll.
*/ */
function UhrRenderer(layout, renderarea) { function UhrRenderer(layout, renderarea) {
this.render = function render(uhr, beforeshow) { this.render = function render(beforeshow) {
if (layout.parsed === undefined) { if (layout.parsed === undefined) {
switch (layout.version) { switch (layout.version) {
case 2: case 2: