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Merge pull request #11503 from Snuffleupagus/issue-11499

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Remove the unused `id` properties from page and thumbnail canvas/image DOM elements (issue 11499)
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Tim van der Meij 2020-01-12 19:38:17 +01:00 • committed by GitHub
commit 40f531ee87
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4 changed files with 42 additions and 47 deletions
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6
web/pdf_page_view.js
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@ -559,7 +559,11 @@ class PDFPageView {
const viewport = this.viewport;
const canvas = document.createElement("canvas");
canvas.id = this.renderingId;
this.l10n
.get("page_canvas", { page: this.id }, "Page {{page}}")
.then(msg => {
canvas.setAttribute("aria-label", msg);
});
// Keep the canvas hidden until the first draw callback, or until drawing
// is complete when `!this.renderingQueue`, to prevent black flickering.

79
web/pdf_thumbnail_view.js
View file

@ -125,11 +125,9 @@ class PDFThumbnailView {
const anchor = document.createElement("a");
anchor.href = linkService.getAnchorUrl("#page=" + id);
this.l10n
.get("thumb_page_title", { page: id }, "Page {{page}}")
.then(msg => {
anchor.title = msg;
});
this._thumbPageTitle.then(msg => {
anchor.title = msg;
});
anchor.onclick = function() {
linkService.page = id;
return false;
@ -258,38 +256,23 @@ class PDFThumbnailView {
if (this.renderingState !== RenderingStates.FINISHED) {
return;
}
const id = this.renderingId;
const className = "thumbnailImage";
if (this.disableCanvasToImageConversion) {
this.canvas.id = id;
this.canvas.className = className;
this.l10n
.get(
"thumb_page_canvas",
{ page: this.pageId },
"Thumbnail of Page {{page}}"
)
.then(msg => {
this.canvas.setAttribute("aria-label", msg);
});
this._thumbPageCanvas.then(msg => {
this.canvas.setAttribute("aria-label", msg);
});
this.div.setAttribute("data-loaded", true);
this.ring.appendChild(this.canvas);
return;
}
const image = document.createElement("img");
image.id = id;
image.className = className;
this.l10n
.get(
"thumb_page_canvas",
{ page: this.pageId },
"Thumbnail of Page {{page}}"
)
.then(msg => {
image.setAttribute("aria-label", msg);
});
this._thumbPageCanvas.then(msg => {
image.setAttribute("aria-label", msg);
});
image.style.width = this.canvasWidth + "px";
image.style.height = this.canvasHeight + "px";
@ -455,8 +438,20 @@ class PDFThumbnailView {
this._convertCanvasToImage();
}
get pageId() {
return this.pageLabel !== null ? this.pageLabel : this.id;
get _thumbPageTitle() {
return this.l10n.get(
"thumb_page_title",
{ page: this.pageLabel !== null ? this.pageLabel : this.id },
"Page {{page}}"
);
}
get _thumbPageCanvas() {
return this.l10n.get(
"thumb_page_canvas",
{ page: this.pageLabel !== null ? this.pageLabel : this.id },
"Thumbnail of Page {{page}}"
);
}
/**
@ -465,29 +460,21 @@ class PDFThumbnailView {
setPageLabel(label) {
this.pageLabel = typeof label === "string" ? label : null;
this.l10n
.get("thumb_page_title", { page: this.pageId }, "Page {{page}}")
.then(msg => {
this.anchor.title = msg;
});
this._thumbPageTitle.then(msg => {
this.anchor.title = msg;
});
if (this.renderingState !== RenderingStates.FINISHED) {
return;
}
this.l10n
.get(
"thumb_page_canvas",
{ page: this.pageId },
"Thumbnail of Page {{page}}"
)
.then(ariaLabel => {
if (this.image) {
this.image.setAttribute("aria-label", ariaLabel);
} else if (this.disableCanvasToImageConversion && this.canvas) {
this.canvas.setAttribute("aria-label", ariaLabel);
}
});
this._thumbPageCanvas.then(msg => {
if (this.image) {
this.image.setAttribute("aria-label", msg);
} else if (this.disableCanvasToImageConversion && this.canvas) {
this.canvas.setAttribute("aria-label", msg);
}
});
}
static cleanup() {