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Break dependencies between PresentationMode and other code, and add PresentationMode related utility methods to PDFViewer

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This patch:
 - Adds a couple of utility methods to `PDFViewer` to enable checking `presentationModeState` without cumbersome comparisons.

 - Disentangles `PresentationMode` from `PDFHistory` and `HandTool`, by adding event listeners for `presentationmodechanged` to both of them.

 - Adds a utility function to `PDFViewerApplication` for requesting PresentationMode.

 - Prevents initialization of `PresentationMode` if the browser does not support the fullscreen API.
This commit is contained in:
Jonas Jenwald 2015-01-29 13:37:49 +01:00
parent 846eb967cc
commit 2dc1af8028
6 changed files with 83 additions and 63 deletions
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8
web/pdf_history.js
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@ -14,7 +14,6 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* globals PDFJS, PresentationMode */
'use strict';
@ -31,6 +30,7 @@ var PDFHistory = {
this.reInitialized = false;
this.allowHashChange = true;
this.historyUnlocked = true;
this.isViewerInPresentationMode = false;
this.previousHash = window.location.hash.substring(1);
this.currentBookmark = '';
@ -122,6 +122,10 @@ var PDFHistory = {
// the 'DOMContentLoaded' event is not fired on 'pageshow'.
window.addEventListener('beforeunload', pdfHistoryBeforeUnload, false);
}, false);
window.addEventListener('presentationmodechanged', function(e) {
self.isViewerInPresentationMode = !!e.detail.active;
});
},
_isStateObjectDefined: function pdfHistory_isStateObjectDefined(state) {
@ -286,7 +290,7 @@ var PDFHistory = {
return null;
}
var params = { hash: this.currentBookmark, page: this.currentPage };
if (PresentationMode.active) {
if (this.isViewerInPresentationMode) {
params.hash = null;
}
return params;