Sakurai/pdf.js
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge pull request #13085 from Snuffleupagus/driver-rasterize-errors

Browse Source 
Ensure that *all* errors are handled in `rasterizeTextLayer`/`rasterizeAnnotationLayer`
This commit is contained in:
Tim van der Meij 2021-03-12 21:16:16 +01:00 committed by GitHub
commit 61318c42aa
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 71 additions and 61 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

132
test/driver.js
View File

@ -74,32 +74,39 @@ var rasterizeTextLayer = (function rasterizeTextLayerClosure() {
div.className = "textLayer";
foreignObject.appendChild(div);
// Rendering text layer as HTML.
var task = pdfjsLib.renderTextLayer({
textContent,
container: div,
viewport,
enhanceTextSelection,
});
Promise.all([stylePromise, task.promise]).then(function (results) {
task.expandTextDivs(true);
style.textContent = results[0];
svg.appendChild(foreignObject);
stylePromise
.then(async cssRules => {
style.textContent = cssRules;
// We need to have UTF-8 encoded XML.
var svg_xml = unescape(
encodeURIComponent(new XMLSerializer().serializeToString(svg))
);
var img = new Image();
img.src = "data:image/svg+xml;base64," + btoa(svg_xml);
img.onload = function () {
ctx.drawImage(img, 0, 0);
resolve();
};
img.onerror = function (e) {
reject(new Error("Error rasterizing text layer " + e));
};
});
// Rendering text layer as HTML.
var task = pdfjsLib.renderTextLayer({
textContent,
container: div,
viewport,
enhanceTextSelection,
});
await task.promise;
task.expandTextDivs(true);
svg.appendChild(foreignObject);
// We need to have UTF-8 encoded XML.
var svg_xml = unescape(
encodeURIComponent(new XMLSerializer().serializeToString(svg))
);
var img = new Image();
img.src = "data:image/svg+xml;base64," + btoa(svg_xml);
img.onload = function () {
ctx.drawImage(img, 0, 0);
resolve();
};
img.onerror = function (e) {
reject(new Error("Error rasterizing text layer " + e));
};
})
.catch(reason => {
reject(new Error(`rasterizeTextLayer: "${reason?.message}".`));
});
});
}
@ -208,45 +215,46 @@ var rasterizeAnnotationLayer = (function rasterizeAnnotationLayerClosure() {
div.className = "annotationLayer";
// Rendering annotation layer as HTML.
stylePromise.then(function (common, overrides) {
style.textContent = common + overrides;
stylePromise
.then(async (common, overrides) => {
style.textContent = common + overrides;
var annotation_viewport = viewport.clone({ dontFlip: true });
var parameters = {
viewport: annotation_viewport,
div,
annotations,
page,
linkService: new pdfjsViewer.SimpleLinkService(),
imageResourcesPath,
renderInteractiveForms,
};
pdfjsLib.AnnotationLayer.render(parameters);
var annotation_viewport = viewport.clone({ dontFlip: true });
var parameters = {
viewport: annotation_viewport,
div,
annotations,
page,
linkService: new pdfjsViewer.SimpleLinkService(),
imageResourcesPath,
renderInteractiveForms,
};
pdfjsLib.AnnotationLayer.render(parameters);
// Inline SVG images from text annotations.
var images = div.getElementsByTagName("img");
var imagePromises = inlineAnnotationImages(images);
var converted = Promise.all(imagePromises).then(function (data) {
var loadedPromises = [];
for (var i = 0, ii = data.length; i < ii; i++) {
images[i].src = data[i];
loadedPromises.push(
new Promise(function (resolveImage, rejectImage) {
images[i].onload = resolveImage;
images[i].onerror = function (e) {
rejectImage(new Error("Error loading image " + e));
};
})
);
}
return loadedPromises;
});
// Inline SVG images from text annotations.
var images = div.getElementsByTagName("img");
var imagePromises = inlineAnnotationImages(images);
foreignObject.appendChild(div);
svg.appendChild(foreignObject);
await Promise.all(imagePromises).then(function (data) {
var loadedPromises = [];
for (var i = 0, ii = data.length; i < ii; i++) {
images[i].src = data[i];
loadedPromises.push(
new Promise(function (resolveImage, rejectImage) {
images[i].onload = resolveImage;
images[i].onerror = function (e) {
rejectImage(new Error("Error loading image " + e));
};
})
);
}
return loadedPromises;
});
// We need to have UTF-8 encoded XML.
converted.then(function () {
foreignObject.appendChild(div);
svg.appendChild(foreignObject);
// We need to have UTF-8 encoded XML.
var svg_xml = unescape(
encodeURIComponent(new XMLSerializer().serializeToString(svg))
);
@ -259,8 +267,10 @@ var rasterizeAnnotationLayer = (function rasterizeAnnotationLayerClosure() {
img.onerror = function (e) {
reject(new Error("Error rasterizing annotation layer " + e));
};
})
.catch(reason => {
reject(new Error(`rasterizeAnnotationLayer: "${reason?.message}".`));
});
});
});
}