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1× | "use strict";
// Parses CSS/stylesheets declarations -ko-blockdefs/-ko-themes
// It returns KO bindings but doesn't depend on KO
// Needs a bindingProvider
// Also uses a blockDefsUpdater to update definitions while parsing the stylesheet.
var cssParse = require("mensch/lib/parser.js");
var console = require("console");
var converterUtils = require("./utils.js");
var elaborateDeclarations = require("./declarations.js");
/* Temporary experimental code not used
var _processStyleSheetRules_processThemes = function (bindingProvider, themeUpdater, rules) {
var sels, decls, i, j, k;
for( i = 0; i < rules.length; i++) {
if (rules[i].type == 'rule') {
sels = rules[i].selectors;
decls = rules[i].declarations;
for (j = 0; j < sels.length; j++) {
for (k = 0; k < decls.length; k++) if (decls[k].type == 'property') {
try {
var bindVal = bindingProvider('$'+decls[k].name);
themeUpdater(sels[j], decls[k].name, decls[k].value, bindVal);
} catch (e) {
console.log("Exception setting theme for", decls[k].name, decls[k].value, e);
}
}
}
}
}
};
*/
var _processStyleSheetRules_processBlockDef = function(blockDefsUpdater, rules) {
var properties, namedProps, decls;
// name, contextName, globalStyle, themeOverride, extend, min, max, widget, options, category, variant, help, blockDescription, version,
for (var i = 0; i < rules.length; i++) {
if (rules[i].type == 'rule') {
var sels = rules[i].selectors;
var hasDeclarations = false;
var hasPreviews = false;
for (var j = 0; j < sels.length; j++) {
if (sels[j].match(/:preview$/)) {
hasPreviews = true;
} else {
hasDeclarations = true;
}
}
if (hasPreviews && hasDeclarations) {
console.log("cannot mix selectors type (:preview and declarations) in @supports -ko-blockdefs ", sels);
throw "Cannot mix selectors type (:preview and declarations) in @supports -ko-blockdefs";
}
Iif (!hasPreviews && !hasDeclarations) {
console.log("cannot find known selectors in @supports -ko-blockdefs ", sels);
throw "Cannot find known selectors in @supports -ko-blockdefs";
}
if (hasDeclarations) {
properties = '';
namedProps = {};
/*
name = undefined;
contextName = undefined;
globalStyle = undefined;
themeOverride = undefined;
extend = undefined;
max = undefined;
min = undefined;
widget = undefined;
options = undefined;
category = undefined;
variant = undefined;
help = undefined;
blockDescription = undefined;
version = undefined;
*/
decls = rules[i].declarations;
for (var k = 0; k < decls.length; k++) Eif (decls[k].type == 'property') {
if (decls[k].name == 'label') namedProps.name = decls[k].value;
else Iif (decls[k].name == 'context') namedProps.contextName = decls[k].value;
else if (decls[k].name == 'properties') properties = decls[k].value;
else if (decls[k].name == 'theme') namedProps.globalStyle = '_theme_.' + decls[k].value;
else Iif (decls[k].name == 'themeOverride') namedProps.themeOverride = String(decls[k].value).toLowerCase() == 'true';
// else if (decls[k].name == 'extend') extend = decls[k].value;
// else if (decls[k].name == 'max') max = decls[k].value;
// else if (decls[k].name == 'min') min = decls[k].value;
// else if (decls[k].name == 'options') options = decls[k].value;
// else if (decls[k].name == 'widget') widget = decls[k].value;
// else if (decls[k].name == 'category') category = decls[k].value;
// else if (decls[k].name == 'variant') variant = decls[k].value;
// else if (decls[k].name == 'help') help = decls[k].value;
// else if (decls[k].name == 'blockDescription') blockDescription = decls[k].value;
// else if (decls[k].name == 'version') version = decls[k].value;
else {
namedProps[decls[k].name] = decls[k].value;
// TODO in past we detected unsupported properties, while now we simple push every declaration in a namedProperty.
// This make it harder to spot errors in declarations.
// console.warn("Unknown property processing @supports -ko-blockdefs ", decls[k], sels);
}
}
for (var l = 0; l < sels.length; l++) {
blockDefsUpdater(sels[l], properties, namedProps);
}
}
if (hasPreviews) {
for (var m = 0; m < sels.length; m++) {
var localBlockName = sels[m].substr(0, sels[m].indexOf(':'));
var previewBindings = rules[i].declarations;
blockDefsUpdater(localBlockName, undefined, { previewBindings: previewBindings });
}
}
} else {
// Ignoring comments or other content
}
}
};
var processStylesheetRules = function(style, rules, localWithBindingProvider, blockDefsUpdater, themeUpdater, templateUrlConverter, rootModelName, templateName) {
var newStyle = style;
var lastStart = null;
if (typeof rules == 'undefined') {
var styleSheet = cssParse(style, {
comments: true,
position: true
});
Iif (styleSheet.type != 'stylesheet' || typeof styleSheet.stylesheet == 'undefined') {
console.log("unable to process styleSheet", styleSheet);
throw "Unable to parse stylesheet";
}
rules = styleSheet.stylesheet.rules;
}
// WARN currenlty this parses rules in reverse order so that string replacements works using input "positions"
// otherwise it should compute new offsets on every replacement.
// But this create issues because of definitions being parsed in reverse order, so this is not a good idea.
// Sometimes, to work around this issues, you need to create 2 different <style> blocks.
var bindingProvider;
for (var i = rules.length - 1; i >= 0; i--) {
if (rules[i].type == 'supports' && rules[i].name == '-ko-blockdefs') {
_processStyleSheetRules_processBlockDef(blockDefsUpdater, rules[i].rules);
newStyle = converterUtils.removeStyle(newStyle, rules[i].position.start, lastStart, 0, 0, 0, '');
/* temporary experimental code not used
} else if (rules[i].type == 'supports' && rules[i].name == '-ko-themes') {
bindingProvider = localWithBindingProvider.bind(this, 'theme', '');
_processStyleSheetRules_processThemes(bindingProvider, themeUpdater, rules[i].rules);
newStyle = converterUtils.removeStyle(newStyle, rules[i].position.start, lastStart, 0, 0, 0, '');
*/
} else if (rules[i].type == 'media' || rules[i].type == 'supports') {
newStyle = processStylesheetRules(newStyle, rules[i].rules, localWithBindingProvider, blockDefsUpdater, themeUpdater, templateUrlConverter, rootModelName, templateName);
} else if (rules[i].type == 'comment') {
// ignore comments
} else if (rules[i].type == 'rule') {
var sels = rules[i].selectors;
var newSel = "";
var foundBlockMatch = null;
for (var j = 0; j < sels.length; j++) {
if (newSel.length > 0) newSel += ", ";
var match = sels[j].match(/\[data-ko-block=([^ ]*)\]/);
if (match !== null) {
if (foundBlockMatch !== null && foundBlockMatch != match[1]) throw "Found multiple block-match attribute selectors: cannot translate it (" + foundBlockMatch + " vs " + match[1] + ")";
foundBlockMatch = match[1];
}
newSel += '<!-- ko text: templateMode ==\'wysiwyg\' ? \'#main-wysiwyg-area \' : \'\' --><!-- /ko -->' + sels[j];
}
if (foundBlockMatch) {
var loopPrefix = '<!-- ko foreach: $root.findObjectsOfType($data, \'' + foundBlockMatch + '\') -->';
var loopPostfix = '<!-- /ko -->';
var end = lastStart;
var spacing = " ";
if (rules[i].declarations.length > 0) {
if (rules[i].declarations[0].position.start.line != rules[i].position.end.line) {
spacing = "\n" + (new Array(rules[i].position.start.col)).join(" ");
}
end = rules[i].declarations[rules[i].declarations.length - 1].position.end;
}
if (end === null) newStyle += spacing + loopPostfix;
else if (end == lastStart) newStyle = converterUtils.removeStyle(newStyle, end, lastStart, 0, 0, 0, spacing + loopPostfix);
else newStyle = converterUtils.removeStyle(newStyle, end, lastStart, 0, 0, 0, spacing + '}' + spacing + loopPostfix);
newSel = loopPrefix + spacing + newSel.replace(new RegExp('\\[data-ko-block=' + foundBlockMatch + '\\]', 'g'), '<!-- ko text: \'#\'+id() -->' + foundBlockMatch + '<!-- /ko -->');
blockDefsUpdater(foundBlockMatch, '', { contextName: 'block' });
}
// TODO mensch update (using original mensch library we needed this line, while the patched one doesn't need this code)
// newSel += " {";
var localBlockName = foundBlockMatch ? foundBlockMatch : templateName;
bindingProvider = localWithBindingProvider.bind(this, localBlockName, '');
var elaboratedStyle = elaborateDeclarations(newStyle, rules[i].declarations, templateUrlConverter, bindingProvider);
if (elaboratedStyle !== null) newStyle = elaboratedStyle;
newStyle = converterUtils.removeStyle(newStyle, rules[i].position.start, rules[i].position.end, 0, 0, 0, newSel);
} else {
console.log("Unknown rule type", rules[i].type, "while parsing <style> rules");
}
lastStart = rules[i].position.start;
}
return newStyle;
};
module.exports = processStylesheetRules; |