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feat: Add tooltip customization for export icons
Implements the ability to set default and specific tooltips for the export icons (Excel, DOCX, PDF, CSV) in GridExporter. Key changes: - Added `setDefaultExportIconTooltip(String)` to set a general tooltip for all export icons. - Added specific setters like `setExcelExportIconTooltip(String)` to customize tooltips for individual export types. Specific tooltips override the default. - Tooltips are applied to the `Anchor` components in the `createFor` method. Passing `null` as a tooltip value effectively clears the tooltip (or falls back to default), while an empty string `""` sets an intentionally blank tooltip. - Unit tests verify the internal state of tooltip configurations. Direct DOM testing of tooltip attributes was omitted to avoid adding test-specific fields to the component. - Updated JavaDocs and README.md with details on the new feature. Fixes #114
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‎README.md

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@@ -102,6 +102,81 @@ Custom templates can be added anywhere in the classpath (ie: src/main/resources)
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Apply [this fix](https://github.com/docker-library/openjdk/issues/73#issuecomment-451102068) as mentioned in #15 to avoid the "Cannot load from short array because "sun.awt.FontConfiguration.head" is null error.
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## Customizing Export Icon Tooltips
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The GridExporter addon allows you to customize the tooltip text displayed when a user hovers over the export icons (Excel, DOCX, PDF, CSV).
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You can set a default tooltip that applies to all export icons, or provide specific tooltips for individual icons.
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### Setting Tooltips
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1. **Default Tooltip:**
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Use the `setDefaultExportIconTooltip(String tooltipText)` method to set a common tooltip for all export icons. This tooltip will be used unless a more specific one is set for a particular icon.
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```java
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GridExporter<Person> exporter = GridExporter.createFor(grid);
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exporter.setDefaultExportIconTooltip("Export grid data");
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```
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2. **Specific Tooltips:**
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You can set a unique tooltip for each export format using dedicated methods:
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* `setExcelExportIconTooltip(String tooltipText)`
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* `setDocxExportIconTooltip(String tooltipText)`
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* `setPdfExportIconTooltip(String tooltipText)`
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* `setCsvExportIconTooltip(String tooltipText)`
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A specific tooltip will always override the default tooltip for that particular icon.
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```java
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// Specific tooltip for Excel, other icons (DOCX, PDF, CSV) will use the default if set.
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exporter.setExcelExportIconTooltip("Export to Excel spreadsheet (.xlsx)");
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```
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### Behavior and Precedence
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* If a specific tooltip is set for an icon (e.g., `setExcelExportIconTooltip("Specific")`), it is always used for that icon.
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* If a specific tooltip is *not* set for an icon, or if it's set to `null`, but a default tooltip is set (e.g., `setDefaultExportIconTooltip("Default")`), the default tooltip is used.
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* If neither a specific nor a default tooltip is set (or both are `null`) for an icon, it will have no tooltip (the `title` attribute will be removed from the anchor).
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### Removing or Clearing Tooltips
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* **Passing `null`**: If you pass `null` to a specific tooltip setter (e.g., `setExcelExportIconTooltip(null)`), that specific tooltip is removed. The icon will then attempt to use the default tooltip if one is set. If `null` is passed to `setDefaultExportIconTooltip(String)`, the default tooltip is removed. If an icon has no specific tooltip and the default is removed, it will have no tooltip.
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* **Passing an Empty String `""`**: If you pass an empty string to any tooltip setter (e.g., `setExcelExportIconTooltip("")`), the icon will have an intentionally blank tooltip (the `title` attribute will be present but empty). This overrides any default tooltip for that specific icon.
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### Examples
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```java
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GridExporter<Person> exporter = GridExporter.createFor(grid);
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// Example 1: Set a default tooltip for all export icons
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exporter.setDefaultExportIconTooltip("Export grid data");
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// All icons will show "Export grid data"
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// Example 2: Set a specific tooltip for the Excel export icon
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// This will override the default for the Excel icon only.
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exporter.setExcelExportIconTooltip("Export to Excel spreadsheet (.xlsx)");
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// Excel icon: "Export to Excel spreadsheet (.xlsx)"
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// Other icons: "Export grid data"
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// Example 3: Set a specific tooltip for PDF and a default for others
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exporter.setDefaultExportIconTooltip("Download file");
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exporter.setPdfExportIconTooltip("Download as PDF document");
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// Excel, DOCX, CSV icons: "Download file"
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// PDF icon: "Download as PDF document"
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// Example 4: Clear specific tooltip for CSV; it falls back to default
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exporter.setDefaultExportIconTooltip("Default export tooltip");
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exporter.setExcelExportIconTooltip("Excel specific"); // Keep one specific for contrast
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exporter.setCsvExportIconTooltip(null);
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// CSV icon: "Default export tooltip"
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// Excel icon: "Excel specific"
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// Other icons (DOCX, PDF): "Default export tooltip"
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// Example 5: Intentionally blank tooltip for DOCX
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exporter.setDocxExportIconTooltip("");
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// DOCX icon: Will have a title attribute, but it will be empty.
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// Other icons: (Depends on default or other specific settings from previous examples)
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```
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## Special configuration when using Spring
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‎src/main/java/com/flowingcode/vaadin/addons/gridexporter/GridExporter.java

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@@ -137,6 +137,12 @@ public class GridExporter<T> implements Serializable {
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private SerializableSupplier<Charset> csvCharset;
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private String defaultExportIconTooltip = null;
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private String excelIconTooltip = null;
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private String docxIconTooltip = null;
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private String pdfIconTooltip = null;
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private String csvIconTooltip = null;
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private GridExporter(Grid<T> grid) {
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this.grid = grid;
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}
@@ -160,6 +166,17 @@ public static <T> GridExporter<T> createFor(
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.setHref(exporter.getExcelStreamResource(excelCustomTemplate)
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.forComponent(excelLink));
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excelLink.getElement().setAttribute("download", true);
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String finalExcelTooltip = null;
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if (exporter.excelIconTooltip != null) {
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finalExcelTooltip = exporter.excelIconTooltip;
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} else if (exporter.defaultExportIconTooltip != null) {
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finalExcelTooltip = exporter.defaultExportIconTooltip;
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}
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if (finalExcelTooltip != null && !finalExcelTooltip.isEmpty()) {
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excelLink.setTitle(finalExcelTooltip);
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} else {
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excelLink.setTitle(null);
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}
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footerToolbar.add(
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new FooterToolbarItem(excelLink, FooterToolbarItemPosition.EXPORT_BUTTON));
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}
@@ -168,21 +185,54 @@ public static <T> GridExporter<T> createFor(
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docLink.setHref(
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exporter.getDocxStreamResource(docxCustomTemplate).forComponent(docLink));
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docLink.getElement().setAttribute("download", true);
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String finalDocxTooltip = null;
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if (exporter.docxIconTooltip != null) {
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finalDocxTooltip = exporter.docxIconTooltip;
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} else if (exporter.defaultExportIconTooltip != null) {
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finalDocxTooltip = exporter.defaultExportIconTooltip;
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}
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if (finalDocxTooltip != null && !finalDocxTooltip.isEmpty()) {
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docLink.setTitle(finalDocxTooltip);
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} else {
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docLink.setTitle(null);
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}
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footerToolbar
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.add(new FooterToolbarItem(docLink, FooterToolbarItemPosition.EXPORT_BUTTON));
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}
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if (exporter.isPdfExportEnabled()) {
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Anchor docLink = new Anchor("", FontAwesome.Regular.FILE_PDF.create());
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docLink.setHref(
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exporter.getPdfStreamResource(docxCustomTemplate).forComponent(docLink));
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docLink.getElement().setAttribute("download", true);
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Anchor pdfLink = new Anchor("", FontAwesome.Regular.FILE_PDF.create()); // Renamed to pdfLink
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pdfLink.setHref(
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exporter.getPdfStreamResource(docxCustomTemplate).forComponent(pdfLink));
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pdfLink.getElement().setAttribute("download", true);
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String finalPdfTooltip = null;
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if (exporter.pdfIconTooltip != null) {
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finalPdfTooltip = exporter.pdfIconTooltip;
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} else if (exporter.defaultExportIconTooltip != null) {
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finalPdfTooltip = exporter.defaultExportIconTooltip;
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}
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if (finalPdfTooltip != null && !finalPdfTooltip.isEmpty()) {
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pdfLink.setTitle(finalPdfTooltip);
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} else {
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pdfLink.setTitle(null);
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}
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footerToolbar
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.add(new FooterToolbarItem(docLink, FooterToolbarItemPosition.EXPORT_BUTTON));
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.add(new FooterToolbarItem(pdfLink, FooterToolbarItemPosition.EXPORT_BUTTON));
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}
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if (exporter.isCsvExportEnabled()) {
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Anchor csvLink = new Anchor("", FontAwesome.Regular.FILE_LINES.create());
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csvLink.setHref(exporter.getCsvStreamResource());
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csvLink.getElement().setAttribute("download", true);
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String finalCsvTooltip = null;
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if (exporter.csvIconTooltip != null) {
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finalCsvTooltip = exporter.csvIconTooltip;
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} else if (exporter.defaultExportIconTooltip != null) {
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finalCsvTooltip = exporter.defaultExportIconTooltip;
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}
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if (finalCsvTooltip != null && !finalCsvTooltip.isEmpty()) {
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csvLink.setTitle(finalCsvTooltip);
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} else {
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csvLink.setTitle(null);
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}
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footerToolbar
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.add(new FooterToolbarItem(csvLink, FooterToolbarItemPosition.EXPORT_BUTTON));
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}
@@ -812,4 +862,64 @@ public void setCsvCharset(SerializableSupplier<Charset> charset) {
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csvCharset = charset;
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}
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/**
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* Sets the default tooltip text for all export icons.
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* This tooltip will be used for any export icon that does not have a specific tooltip set
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* via methods like {@link #setExcelExportIconTooltip(String)}.
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*
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* @param tooltipText The text to display as the tooltip. Passing {@code null} removes the
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* default tooltip. An empty string ({@code ""}) should result in the tooltip being cleared.
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*/
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public void setDefaultExportIconTooltip(String tooltipText) {
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this.defaultExportIconTooltip = tooltipText;
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}
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/**
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* Sets the tooltip text for the Excel export icon.
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* This overrides any tooltip set by {@link #setDefaultExportIconTooltip(String)} for the Excel icon.
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*
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* @param tooltipText The text to display as the tooltip for the Excel icon. Passing {@code null}
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* removes this specific tooltip (the default tooltip may then apply). An empty string
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* ({@code ""}) should result in the tooltip being cleared.
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*/
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public void setExcelExportIconTooltip(String tooltipText) {
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this.excelIconTooltip = tooltipText;
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}
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/**
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* Sets the tooltip text for the DOCX (Word) export icon.
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* This overrides any tooltip set by {@link #setDefaultExportIconTooltip(String)} for the DOCX icon.
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*
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* @param tooltipText The text to display as the tooltip for the DOCX icon. Passing {@code null}
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* removes this specific tooltip (the default tooltip may then apply). An empty string
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* ({@code ""}) should result in the tooltip being cleared.
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*/
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public void setDocxExportIconTooltip(String tooltipText) {
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this.docxIconTooltip = tooltipText;
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}
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/**
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* Sets the tooltip text for the PDF export icon.
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* This overrides any tooltip set by {@link #setDefaultExportIconTooltip(String)} for the PDF icon.
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*
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* @param tooltipText The text to display as the tooltip for the PDF icon. Passing {@code null}
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* removes this specific tooltip (the default tooltip may then apply). An empty string
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* ({@code ""}) should result in the tooltip being cleared.
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*/
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public void setPdfExportIconTooltip(String tooltipText) {
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this.pdfIconTooltip = tooltipText;
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}
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/**
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* Sets the tooltip text for the CSV export icon.
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* This overrides any tooltip set by {@link #setDefaultExportIconTooltip(String)} for the CSV icon.
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*
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* @param tooltipText The text to display as the tooltip for the CSV icon. Passing {@code null}
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* removes this specific tooltip (the default tooltip may then apply). An empty string
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* ({@code ""}) should result in the tooltip being cleared.
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*/
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public void setCsvExportIconTooltip(String tooltipText) {
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this.csvIconTooltip = tooltipText;
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}
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}

‎src/test/java/com/flowingcode/vaadin/addons/gridexporter/test/GridExporterTest.java

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package com.flowingcode.vaadin.addons.gridexporter.test;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import static org.junit.jupiter.api.Assertions.assertNull;
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import static org.mockito.Mockito.mock;
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import static org.mockito.Mockito.when;
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import com.flowingcode.vaadin.addons.gridexporter.GridExporter;
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import com.vaadin.flow.component.UI;
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import com.vaadin.flow.component.grid.Grid;
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import com.vaadin.flow.dom.Element;
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import java.lang.reflect.Field;
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import java.util.Optional;
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import org.junit.jupiter.api.BeforeEach;
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import org.junit.jupiter.api.DisplayName;
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import org.junit.jupiter.api.Nested;
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import org.junit.jupiter.api.Test;
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@DisplayName("GridExporter Internal Tooltip State Tests")
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class GridExporterTest {
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private Grid<Object> mockGrid;
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private GridExporter<Object> exporter;
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@SuppressWarnings("unchecked")
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private static <T> T getPrivateField(Object obj, String fieldName) {
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try {
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Field field = obj.getClass().getDeclaredField(fieldName);
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field.setAccessible(true);
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return (T) field.get(obj);
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} catch (NoSuchFieldException | IllegalAccessException e) {
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throw new RuntimeException("Failed to get private field", e);
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}
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}
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@BeforeEach
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void setUp() {
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mockGrid = mock(Grid.class);
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Element mockElement = mock(Element.class);
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when(mockGrid.getElement()).thenReturn(mockElement);
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// Mock UI as it might be accessed by createFor or related methods
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UI mockUi = mock(UI.class);
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when(mockGrid.getUI()).thenReturn(Optional.of(mockUi));
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exporter = GridExporter.createFor(mockGrid);
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}
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@Nested
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@DisplayName("Tooltip Field Initialization Tests")
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class InitializationTests {
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@Test
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@DisplayName("All tooltip fields should be null initially")
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void testInitialTooltipFieldsAreNull() {
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assertNull(getPrivateField(exporter, "defaultExportIconTooltip"), "defaultExportIconTooltip should be null");
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assertNull(getPrivateField(exporter, "excelIconTooltip"), "excelIconTooltip should be null");
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assertNull(getPrivateField(exporter, "docxIconTooltip"), "docxIconTooltip should be null");
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assertNull(getPrivateField(exporter, "pdfIconTooltip"), "pdfIconTooltip should be null");
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assertNull(getPrivateField(exporter, "csvIconTooltip"), "csvIconTooltip should be null");
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}
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}
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@Nested
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@DisplayName("setDefaultExportIconTooltip Setter Tests")
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class DefaultTooltipSetterTests {
66+
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@Test
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@DisplayName("Should set defaultExportIconTooltip to a given string")
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void testSetDefaultTooltip() {
70+
exporter.setDefaultExportIconTooltip("Test Default");
71+
assertEquals("Test Default", getPrivateField(exporter, "defaultExportIconTooltip"));
72+
}
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@Test
75+
@DisplayName("Should set defaultExportIconTooltip to null")
76+
void testSetDefaultTooltipToNull() {
77+
exporter.setDefaultExportIconTooltip("Initial Value"); // Set a value first
78+
exporter.setDefaultExportIconTooltip(null);
79+
assertNull(getPrivateField(exporter, "defaultExportIconTooltip"));
80+
}
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@Test
83+
@DisplayName("Should set defaultExportIconTooltip to an empty string")
84+
void testSetDefaultTooltipToEmptyString() {
85+
exporter.setDefaultExportIconTooltip("Initial Value"); // Set a value first
86+
exporter.setDefaultExportIconTooltip("");
87+
assertEquals("", getPrivateField(exporter, "defaultExportIconTooltip"));
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}
89+
}
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@Nested
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@DisplayName("Specific Tooltip Setter Tests")
93+
class SpecificTooltipSetterTests {
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@Test
96+
@DisplayName("setExcelExportIconTooltip: sets, nullifies, and empties field")
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void testSetExcelExportIconTooltip() {
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exporter.setExcelExportIconTooltip("Excel Tip");
99+
assertEquals("Excel Tip", getPrivateField(exporter, "excelIconTooltip"));
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exporter.setExcelExportIconTooltip(null);
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assertNull(getPrivateField(exporter, "excelIconTooltip"));
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exporter.setExcelExportIconTooltip("");
105+
assertEquals("", getPrivateField(exporter, "excelIconTooltip"));
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}
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@Test
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@DisplayName("setDocxExportIconTooltip: sets, nullifies, and empties field")
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void testSetDocxExportIconTooltip() {
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exporter.setDocxExportIconTooltip("Docx Tip");
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assertEquals("Docx Tip", getPrivateField(exporter, "docxIconTooltip"));
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exporter.setDocxExportIconTooltip(null);
115+
assertNull(getPrivateField(exporter, "docxIconTooltip"));
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117+
exporter.setDocxExportIconTooltip("");
118+
assertEquals("", getPrivateField(exporter, "docxIconTooltip"));
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}
120+
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@Test
122+
@DisplayName("setPdfExportIconTooltip: sets, nullifies, and empties field")
123+
void testSetPdfExportIconTooltip() {
124+
exporter.setPdfExportIconTooltip("PDF Tip");
125+
assertEquals("PDF Tip", getPrivateField(exporter, "pdfIconTooltip"));
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exporter.setPdfExportIconTooltip(null);
128+
assertNull(getPrivateField(exporter, "pdfIconTooltip"));
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exporter.setPdfExportIconTooltip("");
131+
assertEquals("", getPrivateField(exporter, "pdfIconTooltip"));
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}
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@Test
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@DisplayName("setCsvExportIconTooltip: sets, nullifies, and empties field")
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void testSetCsvExportIconTooltip() {
137+
exporter.setCsvExportIconTooltip("CSV Tip");
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assertEquals("CSV Tip", getPrivateField(exporter, "csvIconTooltip"));
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140+
exporter.setCsvExportIconTooltip(null);
141+
assertNull(getPrivateField(exporter, "csvIconTooltip"));
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exporter.setCsvExportIconTooltip("");
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assertEquals("", getPrivateField(exporter, "csvIconTooltip"));
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}
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}
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}

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