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GM_config_lz-string

Refactor GM_config, this version uses lz-string to access data for a Library script

当前为 2018-10-02 提交的版本，查看 最新版本。

此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.greatest.deepsurf.us/scripts/372760/633461/GM_config_lz-string.js 

// ==UserScript==
// @namespace     http://tampermonkey.net/
// @exclude       *

// ==UserLibrary==
// @name          GM_config_lz-string
// @description   Refactor GM_config, this version uses lz-string to access data for a Library script
// @author        avan
// @license       MIT
// @version       0.4

// ==/UserScript==

// ==/UserLibrary==

GM_configStruct.prototype.read = function (store) {
	var rval, cKey, dValue;
	try {
		cKey = LZString.compressToUTF16(store || this.id);
		dValue = LZString.decompressFromUTF16(this.getValue(cKey, '{}'));
		rval = this.parser(dValue);
	} catch(e) {
		this.log("GM_config failed to read saved settings!");
		rval = {};
	}
	return rval;
};

GM_configStruct.prototype.write = function (store, obj) {
	if (!obj) {
		var values = {},
			forgotten = {},
			fields = this.fields;

		for (var id in fields) {
			var field = fields[id];
			var value = field.toValue();

			if (field.save) {
				if (value !== null) {
					values[id] = value;
					field.value = value;
				} else
					values[id] = field.value;
			} else
				forgotten[id] = value;
		}
	}
	try {
		var cKey = LZString.compressToUTF16(store || this.id),
			cValue = LZString.compressToUTF16(this.stringify(obj || values));
		this.setValue(cKey, cValue);
	} catch(e) {
		this.log("GM_config failed to save settings!");
	}

	return forgotten;
};
GM_configField.prototype.toNode = function() {
	var field = this.settings,
		value = this.value,
		options = field.options,
		type = field.type,
		className = field.class,
		style = field.style,
		id = this.id,
		configId = this.configId,
		labelPos = field.labelPos,
		create = this.create;
	function addLabel(pos, labelEl, parentNode, beforeEl) {
		if (!beforeEl) beforeEl = parentNode.firstChild;
		switch (pos) {
			case 'right':
			case 'below':
				if (pos == 'below')
					parentNode.appendChild(create('br', {}));
				parentNode.appendChild(labelEl);
				break;
			default:
				if (pos == 'above')
					parentNode.insertBefore(create('br', {}), beforeEl);
				parentNode.insertBefore(labelEl, beforeEl);
		}
	}
	var retNode = create('div', {
		className: 'config_var',
		id: configId + '_' + id + '_var',
		title: field.title || '',
		
	}),
		firstProp;
	// Retrieve the first prop
	for (var i in field) {
		firstProp = i;
		break;
	}
	var label = field.label && type != "button" ?
		create('label', {
			id: configId + '_' + id + '_field_label',
			for: configId + '_field_' + id,
			className: 'field_label'
		}, field.label) : null;
	var props = {className: className || '', style: style || ''};
	switch (type) {
		case 'textarea':
			props.innerHTML = value;
			props.id = configId + '_field_' + id;
			props.className = (props.className ? props.className + ' ' : '') + 'block';
			props.cols = (field.cols ? field.cols : 20);
			props.rows = (field.rows ? field.rows : 2);
			retNode.appendChild((this.node = create('textarea', props)));
			break;
		case 'radio':
			props.id = configId + '_field_' + id;
			var wrap = create('div', props);
			this.node = wrap;
			for (var i = 0, len = options.length; i < len; ++i) {
				var radLabel = create('label', {
					className: 'radio_label'
				}, options[i]);
				var rad = wrap.appendChild(create('input', {
					value: options[i],
					type: 'radio',
					name: id,
					checked: options[i] == value
				}));
				var radLabelPos = labelPos &&
					(labelPos == 'left' || labelPos == 'right') ?
					labelPos : firstProp == 'options' ? 'left' : 'right';
				addLabel(radLabelPos, radLabel, wrap, rad);
			}
			retNode.appendChild(wrap);
			break;
		case 'select':
			props.id = configId + '_field_' + id;
			var wrap = create('select', props);
			this.node = wrap;
			for (var i = 0, len = options.length; i < len; ++i) {
				var option = options[i];
				wrap.appendChild(create('option', {
					value: option,
					selected: option == value
				}, option));
			}
			retNode.appendChild(wrap);
			break;
		default: // fields using input elements
			props.id = configId + '_field_' + id;
			props.type = type;
			props.value = type == 'button' ? field.label : value;
			switch (type) {
				case 'checkbox':
					props.checked = value;
					break;
				case 'button':
					props.size = field.size ? field.size : 25;
					if (field.script) field.click = field.script;
					if (field.click) props.onclick = field.click;
					break;
				case 'hidden':
					break;
				case 'password':
					props.size = field.size ? field.size : 25;
					break;
				default:
					// type = text, int, or float
					props.type = 'text';
					props.size = field.size ? field.size : 25;
			}
			retNode.appendChild((this.node = create('input', props)));
	}
	if (label) {
		// If the label is passed first, insert it before the field
		// else insert it after
		if (!labelPos)
			labelPos = firstProp == "label" || type == "radio" ?
				"left" : "right";
		addLabel(labelPos, label, retNode);
	}
	return retNode;
};