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feat(okam-build): add native swan component event handler adapter in …
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48 changes: 48 additions & 0 deletions
48
packages/okam-build/lib/build/init-native-swan-processor.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,48 @@ | ||
| /** | ||
| * @file Native swan support processor initialization | ||
| * @author [email protected] | ||
| */ | ||
|
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| 'use strict'; | ||
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| const {registerProcessor} = require('../processor/type'); | ||
| const adapterPlugin = require('../processor/js/plugins/babel-native-swan-plugin'); | ||
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| /** | ||
| * Initialize native component js processor | ||
| * | ||
| * @inner | ||
| * @param {Object=} opts the options to init | ||
| * @param {string=} opts.processor the builtin processor name, by default `babel` | ||
| * @param {Array=} opts.plugins the processor plugins | ||
| */ | ||
| function initJsProcessor(opts) { | ||
| let plugins = (opts && opts.plugins) || [adapterPlugin]; | ||
| registerProcessor({ | ||
| name: (opts && opts.processor) || 'babel', // override existed processor | ||
| hook: { | ||
| before(file, options) { | ||
| if (file.isSwanCompScript && !adapterPlugin.isAdapterModule(file.path)) { | ||
| options.plugins || (options.plugins = []); | ||
| options.plugins.push.apply(options.plugins, plugins); | ||
| } | ||
| } | ||
| } | ||
| }); | ||
| } | ||
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| /** | ||
| * Init native transformation processors | ||
| * | ||
| * @param {Object=} options the initialization options | ||
| * @param {Object=} options.js the component js processor init options | ||
| */ | ||
| function initProcessor(options = {}) { | ||
| let {js} = options; | ||
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| if (js !== false) { | ||
| initJsProcessor(js); | ||
| } | ||
| } | ||
|
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| module.exports = initProcessor; |
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92 changes: 92 additions & 0 deletions
92
packages/okam-build/lib/processor/js/plugins/babel-native-swan-plugin.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,92 @@ | ||
| /** | ||
| * @file Native swan component transformation plugin. | ||
| * Fix component triggerEvent API to adapt the okam event handler. | ||
| * @author [email protected] | ||
| */ | ||
|
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| 'use strict'; | ||
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| const {isVariableDefined, createImportDeclaration} = require('../transform/helper'); | ||
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| /** | ||
| * The component polyfill module id | ||
| * | ||
| * @const | ||
| * @type {string} | ||
| */ | ||
| const COMPONENT_ADAPTER_MODULE_ID = 'okam-core/src/swan/adapter/component'; | ||
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| module.exports = exports = function ({types: t}) { | ||
| return { | ||
| visitor: { | ||
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| /** | ||
| * Replace native component init | ||
| * | ||
| * @param {Object} path ast node path | ||
| * @param {Object} state the processed node state | ||
| */ | ||
| CallExpression(path, state) { | ||
| if (path.isComponentAdapted) { | ||
| return; | ||
| } | ||
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| let {arguments: args, callee} = path.node; | ||
| const calleeName = callee.name; | ||
| if (!t.isIdentifier(callee) || args.length !== 1) { | ||
| return; | ||
| } | ||
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| if (calleeName === 'Component') { | ||
| if (isVariableDefined(path, calleeName)) { | ||
| return; | ||
| } | ||
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| let rootPath = path.findParent(p => t.isProgram(p)); | ||
| let bodyPath = rootPath.get('body.0'); | ||
|
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| // insert the component fix import statement | ||
| const fixComponentFuncName = path.scope.generateUid('fixComponent'); | ||
| bodyPath.insertBefore( | ||
| createImportDeclaration( | ||
| fixComponentFuncName, COMPONENT_ADAPTER_MODULE_ID, t | ||
| ) | ||
| ); | ||
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| path.replaceWith(t.callExpression( | ||
| t.identifier(calleeName), | ||
| [ | ||
| t.callExpression( | ||
| t.identifier(fixComponentFuncName), | ||
| args | ||
| ) | ||
| ] | ||
| )); | ||
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| // add flag to avoid repeat visiting | ||
| path.isComponentAdapted = true; | ||
| } | ||
| }, | ||
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| /** | ||
| * Replace `triggerEvent` API with custom `$emit` API | ||
| * | ||
| * @param {Object} path ast node path | ||
| * @param {Object} state the processed node state | ||
| */ | ||
| MemberExpression(path, state) { | ||
| let {property} = path.node; | ||
| if (t.isIdentifier(property) && property.name === 'triggerEvent') { | ||
| property.name = '$emit'; | ||
| return; | ||
| } | ||
| } | ||
| } | ||
| }; | ||
| }; | ||
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| exports.adapterModuleId = COMPONENT_ADAPTER_MODULE_ID; | ||
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| exports.isAdapterModule = function (path) { | ||
| return path.indexOf(COMPONENT_ADAPTER_MODULE_ID) !== -1; | ||
| }; |
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