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Bug 477105 - improve zoom responsiveness, draw everything clipped r=stuart

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This commit is contained in:
Taras Glek 2009-02-26 11:35:03 -08:00
parent 56b0013a30
commit f7bfaf19e6
2 changed files with 15 additions and 20 deletions
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34
mobile/chrome/content/CanvasBrowser.js
View File

@ -114,22 +114,19 @@ CanvasBrowser.prototype = {
if (self._maybeZoomToPage) {
self.zoomToPage();
}
// flush the whole queue while panning or when the page is done loading
self.flushRegion(!this._isPanning && self._pageLoading);
// draw visible area..freeze during pans
if (!self._isPanning)
self.flushRegion(true);
}
/* During pageload:
* do the paint immediately if it is something that can be drawn fast
* (and there aren't things queued up to be painted already) */
let flushNow = this._isPanning || !this._pageLoading;
if (this._pageLoading) {
if (!this._drawInterval) {
//always flush the first draw
flushNow = true;
this._maybeZoomToPage = true;
this._drawInterval = setInterval(resizeAndPaint, 2000, this);
}
let flushNow = !this._pageLoading && rect.intersects(this._visibleBounds);
// TODO: only fire timer if there are paints to be done
if (this._pageLoading && !this._drawInterval) {
//always flush the first draw
flushNow = true;
this._maybeZoomToPage = true;
this._drawInterval = setInterval(resizeAndPaint, 2000, this);
}
if (flushNow) {
@ -154,7 +151,6 @@ CanvasBrowser.prototype = {
let rect = new wsRect(outX.value, outY.value,
outW.value, outH.value);
if (viewingBoundsOnly) {
let oldrect = rect;
//only draw the visible area
rect = rect.intersect(this._visibleBounds)
if (!rect)
@ -211,7 +207,7 @@ CanvasBrowser.prototype = {
this._pageLoading = false;
this._maybeZoomToPage = false;
this.zoomToPage();
//might as well just only do this in prepareForPanning
// flush the region, to reduce prepareForPanning delay
this.flushRegion();
if (this._drawInterval) {
@ -244,8 +240,8 @@ CanvasBrowser.prototype = {
visibleBounds.top = Math.max(0, this._screenToPage(visibleBounds.top));
visibleBounds.left = Math.max(0, this._screenToPage(visibleBounds.left));
visibleBounds.bottom = this._screenToPage(visibleBounds.bottom);
visibleBounds.right = this._screenToPage(visibleBounds.right);
visibleBounds.bottom = Math.ceil(this._screenToPage(visibleBounds.bottom));
visibleBounds.right = Math.ceil(this._screenToPage(visibleBounds.right));
// if the page is being panned, flush the queue, so things blit correctly
// this avoids incorrect offsets due to a change in _pageBounds.x/y

1
mobile/chrome/content/InputHandler.js
View File

@ -259,7 +259,6 @@ PanningModule.prototype = {
// start kinetic scrolling here for canvas only
if (!this._startKinetic(sX, sY))
this._endKinetic(sX, sY);
Browser.canvasBrowser.prepareForPanning();
}
else {
ws.dragStop(sX, sY);