Whiteboard on Mobile #16998
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| /* | ||
| * Nextcloud - Android Client | ||
| * | ||
| * SPDX-FileCopyrightText: 2019 Chris Narkiewicz <hello@ezaquarii.com> | ||
| * SPDX-FileCopyrightText: 2018 Tobias Kaminsky <tobias@kaminsky.me> | ||
| * SPDX-FileCopyrightText: 2018 Nextcloud GmbH | ||
| * SPDX-License-Identifier: AGPL-3.0-or-later OR GPL-2.0-only | ||
| */ | ||
| package com.owncloud.android.ui.activity | ||
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| import android.content.Intent | ||
| import android.net.Uri | ||
| import android.os.Bundle | ||
| import android.text.TextUtils | ||
| import android.view.KeyEvent | ||
| import android.webkit.JavascriptInterface | ||
| import androidx.activity.result.ActivityResult | ||
| import androidx.activity.result.ActivityResultLauncher | ||
| import androidx.activity.result.contract.ActivityResultContracts | ||
| import androidx.core.net.toUri | ||
| import com.nextcloud.client.account.CurrentAccountProvider | ||
| import com.nextcloud.client.network.ClientFactory | ||
| import com.nextcloud.utils.extensions.getParcelableArgument | ||
| import com.owncloud.android.R | ||
| import com.owncloud.android.datamodel.OCFile | ||
| import com.owncloud.android.lib.common.utils.Log_OC | ||
| import com.owncloud.android.operations.RichDocumentsCreateAssetOperation | ||
| import com.owncloud.android.ui.asynctasks.RichDocumentsLoadUrlTask | ||
| import com.owncloud.android.ui.fragment.OCFileListFragment | ||
| import com.owncloud.android.utils.DisplayUtils | ||
| import com.owncloud.android.utils.FileStorageUtils | ||
| import edu.umd.cs.findbugs.annotations.SuppressFBWarnings | ||
| import org.json.JSONException | ||
| import org.json.JSONObject | ||
| import java.io.File | ||
| import javax.inject.Inject | ||
|
|
||
| /** | ||
| * Opens document for editing via Richdocuments app in a web view | ||
| */ | ||
| class WhiteboardWebView : EditorWebView() { | ||
| @JvmField | ||
| @Inject | ||
| var currentAccountProvider: CurrentAccountProvider? = null | ||
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| @JvmField | ||
| @Inject | ||
| var clientFactory: ClientFactory? = null | ||
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| private var activityResult: ActivityResultLauncher<Intent>? = null | ||
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| @SuppressFBWarnings("ANDROID_WEB_VIEW_JAVASCRIPT_INTERFACE") | ||
| override fun postOnCreate() { | ||
| super.postOnCreate() | ||
|
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| webView.addJavascriptInterface(RichDocumentsMobileInterface(), "RichDocumentsMobileInterface") | ||
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| loadUrl(intent.getStringExtra(EXTRA_URL)) | ||
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| registerActivityResult() | ||
| } | ||
|
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| override fun onNewIntent(intent: Intent) { | ||
| super.onNewIntent(intent) | ||
| } | ||
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| private fun openFileChooser() { | ||
| val action = Intent(this, FilePickerActivity::class.java) | ||
| action.putExtra(OCFileListFragment.ARG_MIMETYPE, "image/") | ||
| activityResult?.launch(action) | ||
| } | ||
|
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| private fun registerActivityResult() { | ||
| activityResult = | ||
| registerForActivityResult(ActivityResultContracts.StartActivityForResult()) { result: ActivityResult -> | ||
| if (RESULT_OK == result.resultCode) { | ||
| result.data?.let { | ||
| handleRemoteFile(it) | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| private fun handleRemoteFile(data: Intent) { | ||
| val file = FolderPickerActivity.EXTRA_FILES?.let { data.getParcelableArgument(it, OCFile::class.java) } | ||
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| Thread { | ||
| val user = currentAccountProvider?.user | ||
| val operation = RichDocumentsCreateAssetOperation(file?.remotePath) | ||
| val result = operation.execute(user, this) | ||
| if (result.isSuccess) { | ||
| val asset = result.singleData as String | ||
| runOnUiThread { | ||
| webView.evaluateJavascript( | ||
| "OCA.RichDocuments.documentsMain.postAsset('" + | ||
| file?.fileName + "', '" + asset + "');", | ||
| null | ||
| ) | ||
| } | ||
| } else { | ||
| runOnUiThread { DisplayUtils.showSnackMessage(this, "Inserting image failed!") } | ||
| } | ||
| }.start() | ||
| } | ||
|
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| override fun onSaveInstanceState(outState: Bundle) { | ||
| outState.putString(EXTRA_URL, url) | ||
| super.onSaveInstanceState(outState) | ||
| } | ||
|
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| override fun onRestoreInstanceState(savedInstanceState: Bundle) { | ||
| url = savedInstanceState.getString(EXTRA_URL) | ||
| super.onRestoreInstanceState(savedInstanceState) | ||
| } | ||
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| override fun onResume() { | ||
| super.onResume() | ||
| webView.evaluateJavascript( | ||
| "if (typeof OCA.RichDocuments.documentsMain.postGrabFocus !== 'undefined') " + | ||
| "{ OCA.RichDocuments.documentsMain.postGrabFocus(); }", | ||
| null | ||
| ) | ||
| } | ||
|
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| private fun printFile(url: Uri) { | ||
| val account = accountManager.currentOwnCloudAccount | ||
| if (account == null) { | ||
| DisplayUtils.showSnackMessage(webView, getString(R.string.failed_to_print)) | ||
| return | ||
| } | ||
| val targetFile = File(FileStorageUtils.getTemporalPath(account.name) + "/print.pdf") | ||
| // PrintAsyncTask(targetFile, url.toString(), WeakReference(this)).execute() | ||
| } | ||
|
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| public override fun loadUrl(url: String?) { | ||
| if (TextUtils.isEmpty(url)) { | ||
| RichDocumentsLoadUrlTask(this, user.get(), file).execute() | ||
| } else { | ||
| super.loadUrl(url) | ||
| } | ||
| } | ||
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| private fun showSlideShow(url: Uri) { | ||
| val intent = Intent(this, ExternalSiteWebView::class.java) | ||
| intent.putExtra(EXTRA_URL, url.toString()) | ||
| intent.putExtra(EXTRA_SHOW_SIDEBAR, false) | ||
| intent.putExtra(EXTRA_SHOW_TOOLBAR, false) | ||
| startActivity(intent) | ||
| } | ||
|
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| private inner class RichDocumentsMobileInterface : MobileInterface() { | ||
| @JavascriptInterface | ||
| fun insertGraphic() { | ||
| openFileChooser() | ||
| } | ||
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| @JavascriptInterface | ||
| fun documentLoaded() { | ||
| runOnUiThread { hideLoading() } | ||
| } | ||
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| @JavascriptInterface | ||
| fun downloadAs(json: String?) { | ||
| try { | ||
| json ?: return | ||
| val downloadJson = JSONObject(json) | ||
| val url = downloadJson.getString(URL).toUri() | ||
| when (downloadJson.getString(TYPE)) { | ||
| PRINT -> printFile(url) | ||
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| SLIDESHOW -> showSlideShow(url) | ||
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| else -> { | ||
| val downloadFileName = downloadJson.optString(FILENAME, fileName) | ||
| downloadFile(url, downloadFileName) | ||
| } | ||
| } | ||
| } catch (e: JSONException) { | ||
| Log_OC.e(this, "Failed to parse download json message: $e") | ||
| } | ||
| } | ||
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| @JavascriptInterface | ||
| fun fileRename(renameString: String?) { | ||
| // when shared file is renamed in another instance, we will get notified about it | ||
| // need to change filename for sharing | ||
| try { | ||
| renameString ?: return | ||
| val renameJson = JSONObject(renameString) | ||
| val newName = renameJson.getString(NEW_NAME) | ||
| file?.fileName = newName | ||
| } catch (e: JSONException) { | ||
| Log_OC.e(this, "Failed to parse rename json message: $e") | ||
| } | ||
| } | ||
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| @JavascriptInterface | ||
| fun paste() { | ||
| // Javascript cannot do this by itself, so help out. | ||
| webView.dispatchKeyEvent(KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_PASTE)) | ||
| webView.dispatchKeyEvent(KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_PASTE)) | ||
| } | ||
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| @JavascriptInterface | ||
| fun hyperlink(hyperlink: String?) { | ||
| try { | ||
| hyperlink ?: return | ||
| val url = JSONObject(hyperlink).getString(HYPERLINK) | ||
| val intent = Intent(Intent.ACTION_VIEW) | ||
| intent.data = url.toUri() | ||
| startActivity(intent) | ||
| } catch (e: JSONException) { | ||
| Log_OC.e(this, "Failed to parse download json message: $e") | ||
| } | ||
| } | ||
| } | ||
|
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| companion object { | ||
| private const val URL = "URL" | ||
| private const val HYPERLINK = "Url" | ||
| private const val TYPE = "Type" | ||
| private const val PRINT = "print" | ||
| private const val SLIDESHOW = "slideshow" | ||
| private const val NEW_NAME = "NewName" | ||
| private const val FILENAME = "filename" | ||
| } | ||
| } | ||
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🤔
P.S.: OK, got it, essentially an mostly unadjusted copy of the richdocs view at this state 🙂