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// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
'use strict';
base.require('ui');
base.require('base.settings');
base.exportTo('ui', function() {
function createSpan(opt_dictionary) {
var spanEl = document.createElement('span');
if (opt_dictionary) {
if (opt_dictionary.className)
spanEl.className = opt_dictionary.className;
if (opt_dictionary.textContent)
spanEl.textContent = opt_dictionary.textContent;
if (opt_dictionary.parent)
opt_dictionary.parent.appendChild(spanEl);
}
return spanEl;
};
function createDiv(opt_dictionary) {
var divEl = document.createElement('div');
if (opt_dictionary) {
if (opt_dictionary.className)
divEl.className = opt_dictionary.className;
if (opt_dictionary.parent)
opt_dictionary.parent.appendChild(divEl);
}
return divEl;
};
function createScopedStyle(styleContent) {
var styleEl = document.createElement('style');
styleEl.scoped = true;
styleEl.innerHTML = styleContent;
return styleEl;
}
function createSelector(
targetEl, targetElProperty,
settingsKey, defaultValue,
items) {
var defaultValueIndex;
for (var i = 0; i < items.length; i++) {
var item = items[i];
if (item.value == defaultValue) {
defaultValueIndex = i;
break;
}
}
if (defaultValueIndex === undefined)
throw new Error('defaultValue must be in the items list');
var selectorEl = document.createElement('select');
selectorEl.addEventListener('change', onChange);
for (var i = 0; i < items.length; i++) {
var item = items[i];
var optionEl = document.createElement('option');
optionEl.textContent = item.label;
optionEl.targetPropertyValue = item.value;
selectorEl.appendChild(optionEl);
}
function onChange(e) {
var value = selectorEl.selectedOptions[0].targetPropertyValue;
base.Settings.set(settingsKey, value);
targetEl[targetElProperty] = value;
}
var oldSetter = targetEl.__lookupSetter__('selectedIndex');
selectorEl.__defineGetter__('selectedValue', function(v) {
return selectorEl.children[selectorEl.selectedIndex].targetPropertyValue;
});
selectorEl.__defineSetter__('selectedValue', function(v) {
for (var i = 0; i < selectorEl.children.length; i++) {
var value = selectorEl.children[i].targetPropertyValue;
if (value == v) {
selectorEl.selectedIndex = i;
onChange();
return;
}
}
throw new Error('Not a valid value');
});
var initialValue = base.Settings.get(settingsKey, defaultValue);
var didSet = false;
for (var i = 0; i < selectorEl.children.length; i++) {
if (selectorEl.children[i].targetPropertyValue == initialValue) {
didSet = true;
targetEl[targetElProperty] = initialValue;
selectorEl.selectedIndex = i;
break;
}
}
if (!didSet) {
selectorEl.selectedIndex = defaultValueIndex;
targetEl[targetElProperty] = defaultValue;
}
return selectorEl;
}
var nextCheckboxId = 1;
function createCheckBox(targetEl, targetElProperty,
settingsKey, defaultValue,
label) {
var buttonEl = document.createElement('input');
buttonEl.type = 'checkbox';
var initialValue = base.Settings.get(settingsKey, defaultValue);
buttonEl.checked = !!initialValue;
if (targetEl)
targetEl[targetElProperty] = initialValue;
function onChange() {
base.Settings.set(settingsKey, buttonEl.checked);
if (targetEl)
targetEl[targetElProperty] = buttonEl.checked;
}
buttonEl.addEventListener('change', onChange);
var id = '#checkbox-' + nextCheckboxId++;
var spanEl = createSpan({className: 'labeled-checkbox'});
buttonEl.setAttribute('id', id);
var labelEl = document.createElement('label');
labelEl.textContent = label;
labelEl.setAttribute('for', id);
spanEl.appendChild(buttonEl);
spanEl.appendChild(labelEl);
spanEl.__defineSetter__('checked', function(opt_bool) {
buttonEl.checked = !!opt_bool;
onChange();
});
spanEl.__defineGetter__('checked', function() {
return buttonEl.checked;
});
return spanEl;
}
return {
createSpan: createSpan,
createDiv: createDiv,
createScopedStyle: createScopedStyle,
createSelector: createSelector,
createCheckBox: createCheckBox
};
});
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