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PSPDFKit
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80 changes: 80 additions & 0 deletions
80
android/src/main/java/com/pspdfkit/flutter/pspdfkit/document/FlutterPdfDocument.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| package com.pspdfkit.flutter.pspdfkit.document | ||
|
|
||
| import android.util.Log | ||
| import com.pspdfkit.document.PdfDocument | ||
| import com.pspdfkit.flutter.pspdfkit.PSPDFKitView | ||
| import com.pspdfkit.flutter.pspdfkit.forms.FormHelper | ||
| import io.flutter.plugin.common.BinaryMessenger | ||
| import io.flutter.plugin.common.MethodCall | ||
| import io.flutter.plugin.common.MethodChannel | ||
| import io.flutter.plugin.common.MethodChannel.MethodCallHandler | ||
| import java.io.File | ||
|
|
||
| class FlutterPdfDocument( | ||
| private val pdfDocument: PdfDocument, messenger: BinaryMessenger, | ||
| ) : MethodCallHandler { | ||
| init { | ||
| val channel = MethodChannel(messenger, "com.pspdfkit.document.${pdfDocument.uid}") | ||
| channel.setMethodCallHandler(this) | ||
| } | ||
|
|
||
| override fun onMethodCall(call: MethodCall, result: MethodChannel.Result) { | ||
| when (call.method) { | ||
| "getPageInfo" -> { | ||
| val pageIndex = call.argument<Int>("pageIndex") ?: -1 | ||
| if (pageIndex < 0 || pageIndex >= pdfDocument.pageCount) { | ||
| result.error("InvalidArgument", "pageIndex is required", null) | ||
| } else { | ||
| try { | ||
| val pageInfo = getPageInfo(pageIndex) | ||
| result.success(pageInfo) | ||
| } catch (e: Exception) { | ||
| result.error("Error", e.message, null) | ||
| } | ||
| } | ||
| } | ||
| "getFormFields" -> { | ||
| try { | ||
| val formFields = pdfDocument.formProvider.formFields | ||
| val formFieldsMap = FormHelper.formFieldPropertiesToMap(formFields) | ||
| result.success(formFieldsMap) | ||
| } catch (e: Exception) { | ||
| result.error("Error", e.message, null) | ||
| } | ||
| } | ||
| "exportPdf" -> { | ||
| try { | ||
| val fileUrl = pdfDocument.documentSource.fileUri?.path | ||
| if (fileUrl == null) { | ||
| result.error("DocumentException", "Document source is not a file", null) | ||
| return | ||
| } | ||
| val data:ByteArray = fileUrl.let { File(it).readBytes() } | ||
| result.success(data) | ||
| } catch (e: Exception) { | ||
| Log.e(LOG_TAG, "Error while exporting PDF", e) | ||
| result.error("DocumentException", e.message, null) | ||
| } | ||
| } | ||
|
|
||
| else -> { | ||
| result.notImplemented() | ||
| } | ||
| } | ||
| } | ||
|
|
||
| private fun getPageInfo(pageIndex: Int): Map<String, Any?> { | ||
| val pageInfo = mapOf( | ||
| "width" to pdfDocument.getPageSize(pageIndex).width, | ||
| "height" to pdfDocument.getPageSize(pageIndex).height, | ||
| "label" to pdfDocument.getPageLabel(pageIndex, false), | ||
| "index" to pageIndex, | ||
| "rotation" to pdfDocument.getPageRotation(pageIndex) | ||
| ) | ||
| return pageInfo | ||
| } | ||
|
|
||
| companion object { | ||
| const val LOG_TAG = "FlutterPdfDocument" | ||
| } | ||
| } |
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