feat: use shared static html resource and add checks to keep resources in sync (#258)

Author: andrewrobinsonhodges-snyk

.github/workflows/resource-check.yml

@@ -0,0 +1,28 @@
+name: Static Resource Checking
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+
+jobs:
+  static-resource-checks:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Fetch Sources
+        uses: actions/checkout@v4
+
+      - name: Check Static Resources
+        run: |
+          declare -A resources
+          # Add each resource as a key, value pair, mapping the local resource to the reference file (which should be stored in the lanaguage server repository). For example:
+          # resources["<path_to_local_file>"]="<url_of_reference_file>"
+          resources["plugin/src/main/resources/ui/html/ScanSummaryInit.html"]="https://raw.githubusercontent.com/snyk/snyk-ls/refs/heads/main/shared_ide_resources/ui/html/ScanSummaryInit.html"
+          for key in ${!resources[@]}; do
+            candidate=$(sha512sum $key | awk {'print $1'})
+            candidate=${candidate:="null"}
+            reference=$(curl -s ${resources[$key]} | sha512sum | awk {'print $1'})
+            echo "Candidate file $key has sha512sum $candidate"
+            echo "Reference file ${resources[$key]} has sha512sum $reference"
+            [[ $candidate == $reference ]]
+          done
+

plugin/src/main/java/io/snyk/eclipse/plugin/html/BaseHtmlProvider.java

@@ -6,6 +6,8 @@
 
 import org.eclipse.core.runtime.Platform;
 import org.eclipse.jface.resource.ColorRegistry;
+import org.eclipse.jface.resource.FontRegistry;
+import org.eclipse.jface.resource.JFaceResources;
 import org.eclipse.swt.graphics.Color;
 import org.eclipse.swt.graphics.RGB;
 import org.eclipse.ui.PlatformUI;
@@ -102,6 +104,7 @@ public String replaceCssVariables(String html) {
 		htmlStyled = htmlStyled.replace("<style nonce=\"ideNonce\" data-ide-style></style>", css);
 		htmlStyled = htmlStyled.replace("var(--default-font)",
 				" ui-sans-serif, \"SF Pro Text\", \"Segoe UI\", \"Ubuntu\", Tahoma, Geneva, Verdana, sans-serif;");
+		htmlStyled = htmlStyled.replace("var(--main-font-size)", getScaledFontSize());
 
 		// Replace CSS variables with actual color values
 		htmlStyled = htmlStyled.replace("var(--text-color)",
@@ -132,6 +135,19 @@ public String replaceCssVariables(String html) {
 		return htmlStyled;
 	}
 
+	private String getScaledFontSize() {
+		int defaultHeight;
+		try {
+			defaultHeight = getCurrentTheme().getFontRegistry().getFontData(JFaceResources.TEXT_FONT)[0].getHeight();
+		} catch (IllegalStateException e) {
+			defaultHeight = 13;
+		}
+		// Language server HTML assumes a base font size of 10px. The default Eclipse font size is 17px (13pt), so we
+		// apply a scaling factor here. This ensures that HTML fonts scale correctly if the user changes the text size.
+		int scaledHeight = (int) (defaultHeight / 1.7);
+		return scaledHeight + "pt";
+	}
+
 	public String getColorAsHex(String colorKey, String defaultColor) {
 		if (Preferences.getInstance().isTest()) {
 			return "";