yetangitu/pdf.js
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Moves scrollPageIntoView to the PDFViewer.

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This commit is contained in:
Yury Delendik 2014-09-30 07:13:46 -05:00
parent f5d416cfdf
commit 374b94381d
4 changed files with 113 additions and 112 deletions
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95
web/page_view.js
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@ -14,9 +14,8 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* globals RenderingStates, PDFJS, mozL10n, CustomStyle,
SCROLLBAR_PADDING, CSS_UNITS, UNKNOWN_SCALE, DEFAULT_SCALE,
getOutputScale, scrollIntoView, Stats, PresentationModeState */
/* globals RenderingStates, PDFJS, mozL10n, CustomStyle, getOutputScale, Stats,
CSS_UNITS */
'use strict';
@ -358,96 +357,6 @@ var PageView = function pageView(container, id, scale, defaultViewport,
return this.viewport.convertToPdfPoint(x, y);
};
this.scrollIntoView = function pageViewScrollIntoView(dest) {
if (this.viewer.presentationModeState ===
PresentationModeState.FULLSCREEN) {
if (this.linkService.page !== this.id) {
// Avoid breaking getVisiblePages in presentation mode.
this.linkService.page = this.id;
return;
}
dest = null;
// Fixes the case when PDF has different page sizes.
this.viewer._setScale(this.viewer.currentScaleValue, true);
}
if (!dest) {
scrollIntoView(div);
return;
}
var x = 0, y = 0;
var width = 0, height = 0, widthScale, heightScale;
var changeOrientation = (this.rotation % 180 === 0 ? false : true);
var pageWidth = (changeOrientation ? this.height : this.width) /
this.scale / CSS_UNITS;
var pageHeight = (changeOrientation ? this.width : this.height) /
this.scale / CSS_UNITS;
var scale = 0;
switch (dest[1].name) {
case 'XYZ':
x = dest[2];
y = dest[3];
scale = dest[4];
// If x and/or y coordinates are not supplied, default to
// _top_ left of the page (not the obvious bottom left,
// since aligning the bottom of the intended page with the
// top of the window is rarely helpful).
x = x !== null ? x : 0;
y = y !== null ? y : pageHeight;
break;
case 'Fit':
case 'FitB':
scale = 'page-fit';
break;
case 'FitH':
case 'FitBH':
y = dest[2];
scale = 'page-width';
break;
case 'FitV':
case 'FitBV':
x = dest[2];
width = pageWidth;
height = pageHeight;
scale = 'page-height';
break;
case 'FitR':
x = dest[2];
y = dest[3];
width = dest[4] - x;
height = dest[5] - y;
var viewerContainer = this.viewer.container;
widthScale = (viewerContainer.clientWidth - SCROLLBAR_PADDING) /
width / CSS_UNITS;
heightScale = (viewerContainer.clientHeight - SCROLLBAR_PADDING) /
height / CSS_UNITS;
scale = Math.min(Math.abs(widthScale), Math.abs(heightScale));
break;
default:
return;
}
if (scale && scale !== this.viewer.currentScale) {
this.viewer.currentScaleValue = scale;
} else if (this.viewer.currentScale === UNKNOWN_SCALE) {
this.viewer.currentScaleValue = DEFAULT_SCALE;
}
if (scale === 'page-fit' && !dest[4]) {
scrollIntoView(div);
return;
}
var boundingRect = [
this.viewport.convertToViewportPoint(x, y),
this.viewport.convertToViewportPoint(x + width, y + height)
];
var left = Math.min(boundingRect[0][0], boundingRect[1][0]);
var top = Math.min(boundingRect[0][1], boundingRect[1][1]);
scrollIntoView(div, { left: left, top: top });
};
this.draw = function pageviewDraw(callback) {
var pdfPage = this.pdfPage;