Fix CssComposer get

docs/modules/Components.md

@@ -747,6 +747,45 @@ editor.on(`component:remove`, model => console.log('Global hook: component:remov
 
 
 
+## Components & CSS
+
+::: warning
+This section is referring to GrapesJS v0.17.27 or higher
+:::
+
+If you need to add component-related styles, you can do it via `styles` property.
+
+```js
+domc.addType('component-css', {
+  model: {
+    defaults: {
+      attributes: { class: 'cmp-css' },
+      components: `
+        <span>Component with styles<span>
+        <div class="cmp-css-a">Component A</div>
+        <div class="cmp-css-b">Component B</div>
+      `,
+      styles: `
+        .cmp-css { color: red }
+        .cmp-css-a { color: green }
+        .cmp-css-b { color: blue }
+
+        @media (max-width: 992px) {
+          .cmp-css{ color: darkred; }
+          .cmp-css-a { color: darkgreen }
+          .cmp-css-b { color: darkblue }
+        }
+      `,
+    },
+  },
+});
+```
+This approach allows the editor to group these styles (CSSRule instances) and remove them accordingly in case all references of the same component are removed.
+
+
+
+
+
 ## Components & JS
 
 If you want to know how to create Components with javascript attached (eg. counters, galleries, slideshows, etc.) check the dedicated page

src/css_composer/index.js

@@ -190,6 +190,7 @@ export default () => {
         opt.state = s;
         opt.mediaText = w;
         opt.selectors = [];
+        w && (opt.atRuleType = 'media');
         rule = new CssRule(opt, c);
         rule.get('selectors').add(selectors, addOpts);
         rules.add(rule, addOpts);
@@ -199,16 +200,16 @@ export default () => {
 
     /**
      * Get the rule
-     * @param {Array<Selector>} selectors Array of selectors
+     * @param {String|Array<Selector>} selectors Array of selectors or selector string, eg `.myClass1.myClass2`
-     * @param {String} state Css rule state
+     * @param {String} state Css rule state, eg. 'hover'
-     * @param {String} width For which device this style is oriented
+     * @param {String} width Media rule value, eg. '(max-width: 992px)'
      * @param {Object} ruleProps Other rule props
      * @return  {Model|null}
      * @example
-     * var sm = editor.SelectorManager;
+     * const sm = editor.SelectorManager;
-     * var sel1 = sm.add('myClass1');
+     * const sel1 = sm.add('myClass1');
-     * var sel2 = sm.add('myClass2');
+     * const sel2 = sm.add('myClass2');
-     * var rule = cssComposer.get([sel1, sel2], 'hover');
+     * const rule = cssComposer.get([sel1, sel2], 'hover', '(max-width: 992px)');
      * // Update the style
      * rule.set('style', {
      *   width: '300px',
@@ -216,12 +217,18 @@ export default () => {
      * });
      * */
     get(selectors, state, width, ruleProps) {
-      var rule = null;
+      let slc = selectors;
-      rules.each(m => {
+      if (isString(selectors)) {
-        if (rule) return;
+        const sm = em.get('SelectorManager');
-        if (m.compare(selectors, state, width, ruleProps)) rule = m;
+        const singleSel = selectors.split(',')[0].trim();
-      });
+        const node = em
-      return rule;
+          .get('Parser')
+          .parserCss.checkNode({ selectors: singleSel })[0];
+        slc = sm.get(node.selectors);
+      }
+      return (
+        rules.find(rule => rule.compare(slc, state, width, ruleProps)) || null
+      );
     },
 
     /**

src/css_composer/model/CssRule.js

@@ -1,7 +1,6 @@
-import { map } from 'underscore';
 import { Model } from 'backbone';
 import Styleable from 'domain_abstract/model/Styleable';
-import { isEmpty, forEach, isString } from 'underscore';
+import { isEmpty, forEach, isString, isArray } from 'underscore';
 import Selectors from 'selector_manager/model/Selectors';
 import { isEmptyObj, hasWin } from 'utils/mixins';
 
@@ -19,7 +18,7 @@ export default class CssRule extends Model.extend(Styleable) {
       // Css properties style
       style: {},
 
-      // On which device width this rule should be rendered, eg. @media (max-width: 1000px)
+      // On which device width this rule should be rendered, eg. `(max-width: 1000px)`
       mediaText: '',
 
       // State of the rule, eg: hover | pressed | focused
@@ -33,12 +32,12 @@ export default class CssRule extends Model.extend(Styleable) {
 
       // This particolar property is used only on at-rules, like 'page' or
       // 'font-face', where the block containes only style declarations
-      singleAtRule: 0,
+      singleAtRule: false,
 
       // If true, sets '!important' on all properties
       // You can use an array to specify properties to set important
       // Used in view
-      important: 0,
+      important: false,
 
       group: '',
 
@@ -205,41 +204,44 @@ export default class CssRule extends Model.extend(Styleable) {
 
   /**
    * Compare the actual model with parameters
-   * @param   {Object} selectors Collection of selectors
+   * @param {Object} selectors Collection of selectors
-   * @param   {String} state Css rule state
+   * @param {String} state Css rule state
-   * @param   {String} width For which device this style is oriented
+   * @param {String} width For which device this style is oriented
    * @param {Object} ruleProps Other rule props
-   * @return  {Boolean}
+   * @returns  {Boolean}
    * @private
    */
   compare(selectors, state, width, ruleProps = {}) {
-    var st = state || '';
+    const st = state || '';
-    var wd = width || '';
+    const wd = width || '';
-    var selectorsAdd = ruleProps.selectorsAdd || '';
+    const selAdd = ruleProps.selectorsAdd || '';
-    var atRuleType = ruleProps.atRuleType || '';
+    let atRule = ruleProps.atRuleType || '';
-    if (!(selectors instanceof Array) && !selectors.models)
+    const sel =
-      selectors = [selectors];
+      !isArray(selectors) && !selectors.models
-    var a1 = map(selectors.models || selectors, model => model.getFullName());
+        ? [selectors]
-    var a2 = map(this.get('selectors').models, model => model.getFullName());
+        : selectors.models || selectors;
-    var f = false;
+
-
+    // Fix atRuleType in case is not specified with width
-    if (a1.length !== a2.length) return f;
+    if (wd && !atRule) atRule = 'media';
-
+
-    for (var i = 0; i < a1.length; i++) {
+    const a1 = sel.map(model => model.getFullName());
-      var re = 0;
+    const a2 = this.get('selectors').map(model => model.getFullName());
-      for (var j = 0; j < a2.length; j++) {
+
-        if (a1[i] === a2[j]) re = 1;
+    // Check selectors
-      }
+    const a1S = a1.slice().sort();
-      if (re === 0) return f;
+    const a2S = a2.slice().sort();
+    if (a1.length !== a2.length || !a1S.every((v, i) => v === a2S[i])) {
+      return false;
     }
 
+    // Check other properties
     if (
       this.get('state') !== st ||
       this.get('mediaText') !== wd ||
-      this.get('selectorsAdd') !== selectorsAdd ||
+      this.get('selectorsAdd') !== selAdd ||
-      this.get('atRuleType') !== atRuleType
+      this.get('atRuleType') !== atRule
     ) {
-      return f;
+      return false;
     }
 
     return true;

src/style_manager/index.js

@@ -287,7 +287,13 @@ export default () => {
         if (hasClasses && useClasses) {
           const deviceW = em.getCurrentMedia();
           rule = cssC.get(valid, state, deviceW);
-
+          console.log('SM', {
+            valid,
+            state,
+            deviceW,
+            rule,
+            validNames: valid.map(v => v.getFullName())
+          });
           if (!rule && !skipAdd) {
             rule = cssC.add(valid, state, deviceW, {}, addOpts);
           }

test/specs/css_composer/index.js

@@ -1,8 +1,4 @@
-import Models from './model/CssModels';
-import CssRuleView from './view/CssRuleView';
-import CssRulesView from './view/CssRulesView';
 import CssComposer from 'css_composer';
-import e2e from './e2e/CssComposer';
 import utils from './../../test_utils.js';
 import Editor from 'editor/model/Editor';
 
@@ -32,6 +28,12 @@ describe('Css Composer', () => {
       config.em = editorModel;
     };
 
+    const getCSS = obj =>
+      obj
+        .getAll()
+        .map(r => r.toCSS())
+        .join('');
+
     beforeEach(() => {
       em = new Editor({});
       config = { em };
@@ -39,7 +41,7 @@ describe('Css Composer', () => {
     });
 
     afterEach(() => {
-      obj = null;
+      em.destroy();
     });
 
     test('Object exists', () => {
@@ -341,5 +343,55 @@ describe('Css Composer', () => {
       expect(obj.get(ruleClass.getSelectors())).toBe(ruleClass);
       expect(obj.get(ruleId.getSelectors())).toBe(ruleId);
     });
+
+    describe('Collections', () => {
+      test('Add a single rule as CSS string', () => {
+        const cssRule = `.test-rule{color:red;}`;
+        obj.addCollection(cssRule);
+        expect(obj.getAll().length).toEqual(1);
+        expect(getCSS(obj)).toEqual(cssRule);
+      });
+      test('Add multiple rules as CSS string', () => {
+        const cssRules = [
+          `.test-rule{color:red;}`,
+          `.test-rule:hover{color:blue;}`,
+          `@media (max-width: 992px){.test-rule{color:darkred;}}`,
+          `@media (max-width: 992px){.test-rule:hover{color:darkblue;}}`
+        ];
+        const cssString = cssRules.join('');
+        obj.addCollection(cssString);
+        expect(obj.getAll().length).toEqual(cssRules.length);
+        expect(getCSS(obj)).toEqual(cssString);
+      });
+      test('Able to return the rule inserted as string', () => {
+        const cssRule = `
+        .test-rule1 {color:red;}
+        .test-rule2:hover {
+          color: blue;
+        }
+        @media (max-width: 992px) {
+          .test-rule3 {
+            color: darkred;
+          }
+          .test-rule4:hover {
+            color: darkblue;
+          }
+        }
+        `;
+        const result = obj.addCollection(cssRule);
+        const [rule1, rule2, rule3, rule4] = result;
+        expect(result.length).toEqual(4);
+        expect(obj.getAll().length).toEqual(4);
+
+        expect(obj.get('.test-rule1')).toBe(rule1);
+        expect(obj.get('.test-rule1', 'hover')).toBe(null);
+        expect(obj.get('.test-rule2', 'hover')).toBe(rule2);
+        expect(rule3.get('mediaText')).toBe('(max-width: 992px)');
+        expect(obj.get('.test-rule3', null, '(max-width: 992px)')).toBe(rule3);
+        expect(obj.get('.test-rule4', 'hover', '(max-width: 992px)')).toBe(
+          rule4
+        );
+      });
+    });
   });
 });