#206: Closes #852. Added open schema as url (TODO: as file).

src/main/menu.js

@@ -1,5 +1,5 @@
 import { openFile, saveFileAs, saveFile, importDataPackage } from './file.js'
-import { showUrlDialog } from './url.js'
+import { showUrlDialogForPackage, showUrlDialogForResourceSchema } from './url.js'
 import { createWindowTab, focusMainWindow } from './windows.js'
 import { importExcel } from './excel.js'
 import { showKeyboardHelp } from './help.js'
@@ -59,8 +59,7 @@ class AppMenu {
             label: 'Import Column Properties',
             accelerator: 'Shift+CmdOrCtrl+I',
             click () {
-              webContents().send('importColumnProperties')
-              webContents().send('toggleLockColumnProperties')
+              showUrlDialogForResourceSchema()
             }
           }, {
             type: 'separator'
@@ -343,8 +342,7 @@ class AppMenu {
       label: 'zip from URL...',
       enabled: true,
       click () {
-        // downloadDataPackageJson()
-        showUrlDialog()
+        showUrlDialogForPackage()
       }
     }, {
       label: 'zip from file...',
@@ -356,8 +354,7 @@ class AppMenu {
       label: 'json from URL...',
       enabled: true,
       click () {
-        // downloadDataPackageJson()
-        showUrlDialog()
+        showUrlDialogForPackage()
       }
     }]
   }

src/main/url.js

@@ -5,16 +5,24 @@ import { ipcMain as ipc, dialog } from 'electron'
 import { focusOrNewSecondaryWindow, focusMainWindow, closeWindowSafely } from './windows'
 import { disableOpenFileItems, enableOpenFileItems } from './menuUtils.js'
 import { Package } from 'datapackage'
+import { Schema } from 'tableschema'
 import tmp from 'tmp'
 import _ from 'lodash'
 import { dataResourceToFormat } from '../renderer/file-formats.js'
 
 // auto cleanup
 tmp.setGracefulCleanup()
 
+export function showUrlDialogForResourceSchema() {
+  showUrlDialogForCallback(handleJsonForResourceSchema)
+}
+
 // TODO: handle errors by rejecting promises and throwing back up stack
-export function showUrlDialog() {
-  // let labels = ['zip from URL....', 'zip from file...', 'json from URL...']
+export function showUrlDialogForPackage() {
+  showUrlDialogForCallback(handleZipOrJsonForPackage)
+}
+
+export function showUrlDialogForCallback(callback, errorMessage='There was a problem loading package or resource(s)') {
   disableOpenFileItems()
   let browserWindow = focusOrNewSecondaryWindow('urldialog', { width: 300, height: 150, modal: true, alwaysOnTop: true })
   browserWindow.on('closed', () => {
@@ -27,23 +35,31 @@ export function showUrlDialog() {
     ipc.once('urlSubmitted', (e, urlText) => {
       closeWindowSafely(browserWindow)
       try {
-        handleZipOrJson(urlText)
+        callback(urlText)
       } catch (error) {
-        console.error(`There was a problem loading package or resource(s)`, error)
+        console.error(errorMessage, error)
         const mainWindow = focusMainWindow()
         mainWindow.webContents.send('closeLoadingScreen')
       }
     })
   })
 }
 
-function handleZipOrJson(urlText) {
+function handleZipOrJsonForPackage(urlText) {
   if (_.endsWith(urlText, '.json')) {
     loadPackageFromJsonUrl(urlText)
   } else if (_.endsWith(urlText, '.zip')) {
     importDataPackageZipFromUrl(urlText)
   } else {
-    showUrlPathNotSupportedMessage()
+    showUrlPathNotSupportedMessage(urlText, '".json" or ".zip"')
+  }
+}
+
+function handleJsonForResourceSchema(urlText) {
+  if (_.endsWith(urlText, '.json')) {
+    loadResourceSchemaFromJsonUrl(urlText)
+  } else {
+    showUrlPathNotSupportedMessage(urlText, '".json"')
   }
 }
 
@@ -95,48 +111,69 @@ function handleDownloadedZip(zipPath, mainWindow) {
 
 async function loadPackageFromJsonUrl(urlText) {
   const mainWindow = focusMainWindow()
-  mainWindow.webContents.send('closeAndshowLoadingScreen', 'Loading package URL..')
-  const dataPackageJson = await loadPackageJson(urlText, mainWindow)
-  if (!dataPackageJson) {
+  const dataPackageJson = await loadGenericFrictionlessFromJsonUrl(urlText, loadPackageJson, 'Data Package')
+  try {
+    await loadResources(dataPackageJson, mainWindow)
+  } catch (error) {
+    console.error('There was a problem loading package from json', error)
+  }
+}
+
+async function loadResourceSchemaFromJsonUrl(urlText) {
+  try {
+    const resourceSchema = await loadGenericFrictionlessFromJsonUrl(urlText, loadTableResourceSchemaJson, 'Table Resource Schema')
+    const mainWindow = focusMainWindow()
+    mainWindow.webContents.send('closeLoadingScreen')
+    if (resourceSchema && resourceSchema.descriptor) {
+      const mainWindow = focusMainWindow()
+      mainWindow.webContents.send('addSchemaToTabAndLock', resourceSchema.descriptor)
+    }
+  } catch (error) {
+    console.error('There was a problem loading resource schema from json', error)
+  }
+}
+
+// atm, 'types' are only : Data Package or Resource Schema
+async function loadGenericFrictionlessFromJsonUrl(urlText, callback, frictionlessType) {
+  const mainWindow = focusMainWindow()
+  mainWindow.webContents.send('closeAndshowLoadingScreen', `Loading ${frictionlessType} URL..`)
+  const frictionlessTypeJson = await callback(urlText, mainWindow)
+  if (!frictionlessTypeJson) {
     dialog.showMessageBox(mainWindow, {
       type: 'warning',
-      title: `Unable to load Data Package`,
+      title: `Unable to load ${frictionlessType}`,
       message:
-        `The data package, ${urlText}, could not be loaded.
-  If the data package is a URL, please check that the URL exists.`
+        `The ${frictionlessType}, ${urlText}, could not be loaded.
+  If the ${frictionlessType} is a URL, please check that the URL exists.`
     })
     mainWindow.webContents.send('closeLoadingScreen')
     return
   }
-  if (!dataPackageJson.valid) {
-    showInvalidMessage(urlText, mainWindow)
+  if (!frictionlessTypeJson.valid) {
+    showInvalidMessage(urlText, mainWindow, frictionlessType)
     mainWindow.webContents.send('closeLoadingScreen')
     return
   }
-  try {
-    await loadResources(dataPackageJson, mainWindow)
-  } catch (error) {
-    console.error('There was a problem loading package from json', error)
-  }
+  return frictionlessTypeJson
 }
 
-function showInvalidMessage(urlText, mainWindow) {
+function showInvalidMessage(urlText, mainWindow, frictionlessType) {
   dialog.showMessageBox(mainWindow, {
     type: 'warning',
-    title: `Invalid Data Package`,
+    title: `Invalid ${frictionlessType}`,
     message:
-      `The data package, at ${urlText}, is not valid. Please refer to
+      `The ${frictionlessType}, at ${urlText}, is not valid. Please refer to
   https://frictionlessdata.io/specs/
   for more information.`
   })
 }
 
-function showUrlPathNotSupportedMessage(urlText, mainWindow) {
-  dialog.showMessageBox(mainWindow, {
+function showUrlPathNotSupportedMessage(urlText, supportedFileExtensions) {
+  dialog.showMessageBox(focusMainWindow(), {
     type: 'warning',
     title: `Unsupported URL Path extension`,
     message:
-      `Data Curator, does not support downloading ${urlText}, as the path does not end in ".zip" or ".json"`
+      `Data Curator, does not support downloading ${urlText}, as the path does not end in ${supportedFileExtensions}`
   })
 }
 
@@ -150,7 +187,8 @@ export async function loadPackageJson(json) {
   }
 }
 
-async function loadResources(dataPackageJson, mainWindow) {
+async function loadResources(dataPackageJson) {
+  const mainWindow = focusMainWindow()
   let packageProperties = _.assign({}, dataPackageJson.descriptor)
   _.unset(packageProperties, 'resources')
   mainWindow.webContents.send('resetPackagePropertiesToObject', packageProperties)
@@ -166,6 +204,15 @@ async function loadResources(dataPackageJson, mainWindow) {
   }
 }
 
+async function loadTableResourceSchemaJson(json) {
+  try {
+    const resourceSchema = await Schema.load(json)
+    return resourceSchema
+  } catch (error) {
+    console.error(`There was a problem loading the table resource schema: ${json}`, error)
+  }
+}
+
 export async function loadResourceDataFromPackageUrl(url, resourceName) {
   const dataPackage = await loadPackageJson(url)
   const rowOfObjects = []

src/renderer/components/Home.vue

@@ -498,6 +498,9 @@ export default {
     ipc.on('addTabWithFormattedDataAndDescriptor', function(e, data, format, descriptor) {
       self.addTab(data, format, descriptor)
     })
+    ipc.on('addSchemaToTabAndLock', function(e, schema) {
+      self.safeInitHotColumnPropertiesFromSchema(schema)
+    })
     ipc.on('addTabWithFormattedDataFile', function(e, data, format, filename) {
       self.addTabWithFilename(data, format, filename)
     })
@@ -912,6 +915,33 @@ export default {
       tableHotIdProperties[hotId] = tableProperties
       this.resetTablePropertiesToObject(tableHotIdProperties)
     },
+
+    safeInitHotColumnPropertiesFromSchema: function(schema) {
+      try {
+        const schemaFieldsCount = _.get(schema, 'fields', 0).length
+        const columnCount = getColumnCount()
+        if (this.currentHotId && schemaFieldsCount === columnCount) {
+          this.initHotColumnPropertiesFromSchema(this.currentHotId, schema)
+          // hot rendering problem when tabs opened quickly - https://github.com/ODIQueensland/data-curator/issues/803- workaround as selecting table re-renders
+          getCurrentColumnIndexOrMin()
+          updateHotDimensions$.next()
+          LockProperties.toggleLockColumnProperties()
+          this.addImportDataPropertiesError('Import Column properties success', `${schemaFieldsCount} schema fields were imported.`)
+        } else {
+          const errorMessage = `Unable to import ${schemaFieldsCount} schema fields to a ${columnCount}-column table`
+          this.addImportDataPropertiesError('Validation Error', errorMessage)
+        }
+      } catch (error) {
+        console.error('ERROR: Import Column Properties: ', error)
+        this.addImportDataPropertiesError('Import Column properties error', 'The column properties could not be imported.')
+      }
+    },
+    addImportDataPropertiesError: function(title, message) {
+      this.messagesTitle = title
+      this.messages = message
+      // as there's only 1 message, simpler to send as feedback (without rows/cols for error)
+      this.messagesType = 'feedback'
+    },
     initHotColumnPropertiesFromSchema: function(hotId, schema) {
       // TODO : move this to similar logic in importDataPackage to tidy up
       if (!_.isEmpty(schema)) {

src/renderer/index.js

@@ -132,10 +132,6 @@ ipc.on('toggleCaseSensitiveHeader', function() {
   ipc.send('hasCaseSensitiveHeader', toggledCase)
 })
 
-ipc.on('importColumnProperties', function() {
-  console.log('arrived')
-})
-
 export function closeSecondaryWindow(windowName) {
   ipc.sendSync('closeSecondaryWindow', windowName)
 }