yetangitu/pdf.js
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Moves viewer code into PDFViewer and some code from PageView.

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This commit is contained in:
Yury Delendik 2014-09-12 21:27:45 -05:00
parent 3bce14761a
commit 7af8748151
6 changed files with 502 additions and 345 deletions
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88
web/page_view.js
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@ -14,15 +14,15 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* globals RenderingStates, PDFView, PDFHistory, PDFJS, mozL10n, CustomStyle,
/* globals RenderingStates, PDFView, PDFJS, mozL10n, CustomStyle,
PresentationMode, scrollIntoView, SCROLLBAR_PADDING, CSS_UNITS,
UNKNOWN_SCALE, DEFAULT_SCALE, getOutputScale, TextLayerBuilder,
cache, Stats */
Stats */
'use strict';
var PageView = function pageView(container, id, scale,
navigateTo, defaultViewport) {
var PageView = function pageView(container, id, scale, defaultViewport,
linkService, renderingQueue, cache, viewer) {
this.id = id;
this.rotation = 0;
@ -31,6 +31,11 @@ var PageView = function pageView(container, id, scale,
this.pdfPageRotate = defaultViewport.rotation;
this.hasRestrictedScaling = false;
this.linkService = linkService;
this.renderingQueue = renderingQueue;
this.cache = cache;
this.viewer = viewer;
this.renderingState = RenderingStates.INITIAL;
this.resume = null;
@ -241,10 +246,10 @@ var PageView = function pageView(container, id, scale,
function setupAnnotations(pageDiv, pdfPage, viewport) {
function bindLink(link, dest) {
link.href = PDFView.getDestinationHash(dest);
link.href = linkService.getDestinationHash(dest);
link.onclick = function pageViewSetupLinksOnclick() {
if (dest) {
PDFView.navigateTo(dest);
linkService.navigateTo(dest);
}
return false;
};
@ -254,47 +259,9 @@ var PageView = function pageView(container, id, scale,
}
function bindNamedAction(link, action) {
link.href = PDFView.getAnchorUrl('');
link.href = linkService.getAnchorUrl('');
link.onclick = function pageViewSetupNamedActionOnClick() {
// See PDF reference, table 8.45 - Named action
switch (action) {
case 'GoToPage':
document.getElementById('pageNumber').focus();
break;
case 'GoBack':
PDFHistory.back();
break;
case 'GoForward':
PDFHistory.forward();
break;
case 'Find':
if (!PDFView.supportsIntegratedFind) {
PDFView.findBar.toggle();
}
break;
case 'NextPage':
PDFView.page++;
break;
case 'PrevPage':
PDFView.page--;
break;
case 'LastPage':
PDFView.page = PDFView.pages.length;
break;
case 'FirstPage':
PDFView.page = 1;
break;
default:
break; // No action according to spec
}
linkService.executeNamedAction(action);
return false;
};
link.className = 'internalLink';
@ -377,13 +344,13 @@ var PageView = function pageView(container, id, scale,
this.scrollIntoView = function pageViewScrollIntoView(dest) {
if (PresentationMode.active) {
if (PDFView.page !== this.id) {
// Avoid breaking PDFView.getVisiblePages in presentation mode.
PDFView.page = this.id;
if (this.linkService.page !== this.id) {
// Avoid breaking getVisiblePages in presentation mode.
this.linkService.page = this.id;
return;
}
dest = null;
PDFView.setScale(PDFView.currentScaleValue, true, true);
this.viewer.setScale(this.viewer.currentScaleValue, true, true);
}
if (!dest) {
scrollIntoView(div);
@ -431,9 +398,10 @@ var PageView = function pageView(container, id, scale,
y = dest[3];
width = dest[4] - x;
height = dest[5] - y;
widthScale = (PDFView.container.clientWidth - SCROLLBAR_PADDING) /
var viewerContainer = this.viewer.container;
widthScale = (viewerContainer.clientWidth - SCROLLBAR_PADDING) /
width / CSS_UNITS;
heightScale = (PDFView.container.clientHeight - SCROLLBAR_PADDING) /
heightScale = (viewerContainer.clientHeight - SCROLLBAR_PADDING) /
height / CSS_UNITS;
scale = Math.min(Math.abs(widthScale), Math.abs(heightScale));
break;
@ -441,10 +409,10 @@ var PageView = function pageView(container, id, scale,
return;
}
if (scale && scale !== PDFView.currentScale) {
PDFView.setScale(scale, true, true);
} else if (PDFView.currentScale === UNKNOWN_SCALE) {
PDFView.setScale(DEFAULT_SCALE, true, true);
if (scale && scale !== this.viewer.currentScale) {
this.viewer.setScale(scale, true, true);
} else if (this.viewer.currentScale === UNKNOWN_SCALE) {
this.viewer.setScale(DEFAULT_SCALE, true, true);
}
if (scale === 'page-fit' && !dest[4]) {
@ -463,7 +431,7 @@ var PageView = function pageView(container, id, scale,
};
this.getTextContent = function pageviewGetTextContent() {
return PDFView.getPage(this.id).then(function(pdfPage) {
return this.renderingQueue.getPage(this.id).then(function(pdfPage) {
return pdfPage.getTextContent();
});
};
@ -475,7 +443,7 @@ var PageView = function pageView(container, id, scale,
return;
}
if (!pdfPage) {
var promise = PDFView.getPage(this.id);
var promise = this.renderingQueue.getPage(this.id);
promise.then(function(pdfPage) {
delete this.pagePdfPromise;
this.setPdfPage(pdfPage);
@ -559,7 +527,7 @@ var PageView = function pageView(container, id, scale,
textLayerDiv ? new TextLayerBuilder({
textLayerDiv: textLayerDiv,
pageIndex: this.id - 1,
lastScrollSource: PDFView,
lastScrollSource: this.linkService,
viewport: this.viewport,
isViewerInPresentationMode: PresentationMode.active,
findController: PDFView.findController
@ -646,7 +614,7 @@ var PageView = function pageView(container, id, scale,
viewport: this.viewport,
// intent: 'default', // === 'display'
continueCallback: function pdfViewcContinueCallback(cont) {
if (PDFView.highestPriorityPage !== 'page' + self.id) {
if (self.renderingQueue.highestPriorityPage !== 'page' + self.id) {
self.renderingState = RenderingStates.PAUSED;
self.resume = function resumeCallback() {
self.renderingState = RenderingStates.RUNNING;