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Merge pull request #7977 from Snuffleupagus/paintedViewport-regression

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Ensure that we use the *correct* `paintedViewport` in `PDFPageView.cssTransform`, to avoid visual glitches on quick rotations (PR 7738 follow-up)
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Yury Delendik 2017-01-23 09:41:35 -06:00 committed by GitHub
commit 857e360a42
1 changed files with 8 additions and 8 deletions
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16
web/pdf_page_view.js
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@ -97,7 +97,7 @@ var PDFPageView = (function PDFPageViewClosure() {
this.renderer = options.renderer || RendererType.CANVAS;
this.paintTask = null;
this.paintedViewport = null;
this.paintedViewportMap = new WeakMap();
this.renderingState = RenderingStates.INITIAL;
this.resume = null;
this.error = null;
@ -170,6 +170,7 @@ var PDFPageView = (function PDFPageViewClosure() {
}
if (this.canvas && !currentZoomLayerNode) {
this.paintedViewportMap.delete(this.canvas);
// Zeroing the width and height causes Firefox to release graphics
// resources immediately, which can greatly reduce memory consumption.
this.canvas.width = 0;
@ -177,11 +178,9 @@ var PDFPageView = (function PDFPageViewClosure() {
delete this.canvas;
}
if (this.svg) {
this.paintedViewportMap.delete(this.svg);
delete this.svg;
}
if (!currentZoomLayerNode) {
this.paintedViewport = null;
}
this.loadingIconDiv = document.createElement('div');
this.loadingIconDiv.className = 'loadingIcon';
@ -281,7 +280,7 @@ var PDFPageView = (function PDFPageViewClosure() {
Math.floor(height) + 'px';
// The canvas may have been originally rotated, rotate relative to that.
var relativeRotation = this.viewport.rotation -
this.paintedViewport.rotation;
this.paintedViewportMap.get(target).rotation;
var absRotation = Math.abs(relativeRotation);
var scaleX = 1, scaleY = 1;
if (absRotation === 90 || absRotation === 270) {
@ -434,9 +433,10 @@ var PDFPageView = (function PDFPageViewClosure() {
}
if (self.zoomLayer) {
var zoomLayerCanvas = self.zoomLayer.firstChild;
self.paintedViewportMap.delete(zoomLayerCanvas);
// Zeroing the width and height causes Firefox to release graphics
// resources immediately, which can greatly reduce memory consumption.
var zoomLayerCanvas = self.zoomLayer.firstChild;
zoomLayerCanvas.width = 0;
zoomLayerCanvas.height = 0;
@ -578,7 +578,7 @@ var PDFPageView = (function PDFPageViewClosure() {
canvas.style.width = roundToDivide(viewport.width, sfx[1]) + 'px';
canvas.style.height = roundToDivide(viewport.height, sfy[1]) + 'px';
// Add the viewport so it's known what it was originally drawn with.
this.paintedViewport = viewport;
this.paintedViewportMap.set(canvas, viewport);
// Rendering area
var transform = !outputScale.scaled ? null :
@ -643,7 +643,7 @@ var PDFPageView = (function PDFPageViewClosure() {
return svgGfx.getSVG(opList, actualSizeViewport).then(function (svg) {
ensureNotCancelled();
self.svg = svg;
self.paintedViewport = actualSizeViewport;
self.paintedViewportMap.set(svg, actualSizeViewport);
svg.style.width = wrapper.style.width;
svg.style.height = wrapper.style.height;